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 const struct sctp_cc_functions sctp_cc_functions[];
  58 extern const 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 #ifdef VIMAGE
  93 static void
  94 sctp_finish(void *unused __unused)
  95 {
  96         sctp_pcb_finish();
  97 }
  98 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
  99 #endif
 100
 101 void
 102 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 103 {
 104         struct sctp_tmit_chunk *chk;
 105         uint16_t overhead;
 106
 107         /* Adjust that too */
 108         stcb->asoc.smallest_mtu = nxtsz;
 109         /* now off to subtract IP_DF flag if needed */
 110         overhead = IP_HDR_SIZE;
 111         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 112                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 113         }
 114         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 115                 if ((chk->send_size + overhead) > nxtsz) {
 116                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 117                 }
 118         }
 119         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 120                 if ((chk->send_size + overhead) > nxtsz) {
 121                         /*
 122                          * For this guy we also mark for immediate resend
 123                          * since we sent to big of chunk
 124                          */
 125                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 126                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 127                                 sctp_flight_size_decrease(chk);
 128                                 sctp_total_flight_decrease(stcb, chk);
 129                                 chk->sent = SCTP_DATAGRAM_RESEND;
 130                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 131                                 chk->rec.data.doing_fast_retransmit = 0;
 132                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 133                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 134                                             chk->whoTo->flight_size,
 135                                             chk->book_size,
 136                                             (uint32_t) (uintptr_t) chk->whoTo,
 137                                             chk->rec.data.TSN_seq);
 138                                 }
 139                                 /* Clear any time so NO RTT is being done */
 140                                 chk->do_rtt = 0;
 141                         }
 142                 }
 143         }
 144 }
 145
 146 #ifdef INET
 147 void
 148 sctp_notify(struct sctp_inpcb *inp,
 149     struct sctp_tcb *stcb,
 150     struct sctp_nets *net,
 151     uint8_t icmp_type,
 152     uint8_t icmp_code,
 153     uint16_t ip_len,
 154     uint16_t next_mtu)
 155 {
 156 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 157         struct socket *so;
 158
 159 #endif
 160         int timer_stopped;
 161
 162         if (icmp_type != ICMP_UNREACH) {
 163                 /* We only care about unreachable */
 164                 SCTP_TCB_UNLOCK(stcb);
 165                 return;
 166         }
 167         if ((icmp_code == ICMP_UNREACH_NET) ||
 168             (icmp_code == ICMP_UNREACH_HOST) ||
 169             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 170             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 171             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 172             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 173             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 174             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 175                 /* Mark the net unreachable. */
 176                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 177                         /* OK, that destination is NOT reachable. */
 178                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 179                         net->dest_state &= ~SCTP_ADDR_PF;
 180                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 181                             stcb, 0,
 182                             (void *)net, SCTP_SO_NOT_LOCKED);
 183                 }
 184                 SCTP_TCB_UNLOCK(stcb);
 185         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 186             (icmp_code == ICMP_UNREACH_PORT)) {
 187                 /* Treat it like an ABORT. */
 188                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 189 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 190                 so = SCTP_INP_SO(inp);
 191                 atomic_add_int(&stcb->asoc.refcnt, 1);
 192                 SCTP_TCB_UNLOCK(stcb);
 193                 SCTP_SOCKET_LOCK(so, 1);
 194                 SCTP_TCB_LOCK(stcb);
 195                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 196 #endif
 197                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 199 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 200                 SCTP_SOCKET_UNLOCK(so, 1);
 201                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 202 #endif
 203                 /* no need to unlock here, since the TCB is gone */
 204         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 205                 /* Find the next (smaller) MTU */
 206                 if (next_mtu == 0) {
 207                         /*
 208                          * Old type router that does not tell us what the
 209                          * next MTU is. Rats we will have to guess (in a
 210                          * educated fashion of course).
 211                          */
 212                         next_mtu = sctp_get_prev_mtu(ip_len);
 213                 }
 214                 /* Stop the PMTU timer. */
 215                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 216                         timer_stopped = 1;
 217                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 218                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 219                 } else {
 220                         timer_stopped = 0;
 221                 }
 222                 /* Update the path MTU. */
 223                 if (net->mtu > next_mtu) {
 224                         net->mtu = next_mtu;
 225                         if (net->port) {
 226                                 net->mtu -= sizeof(struct udphdr);
 227                         }
 228                 }
 229                 /* Update the association MTU */
 230                 if (stcb->asoc.smallest_mtu > next_mtu) {
 231                         sctp_pathmtu_adjustment(stcb, next_mtu);
 232                 }
 233                 /* Finally, start the PMTU timer if it was running before. */
 234                 if (timer_stopped) {
 235                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 236                 }
 237                 SCTP_TCB_UNLOCK(stcb);
 238         } else {
 239                 SCTP_TCB_UNLOCK(stcb);
 240         }
 241 }
 242
 243 void
 244 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 245 {
 246         struct ip *outer_ip;
 247         struct ip *inner_ip;
 248         struct sctphdr *sh;
 249         struct icmp *icmp;
 250         struct sctp_inpcb *inp;
 251         struct sctp_tcb *stcb;
 252         struct sctp_nets *net;
 253         struct sctp_init_chunk *ch;
 254         struct sockaddr_in src, dst;
 255
 256         if (sa->sa_family != AF_INET ||
 257             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 258                 return;
 259         }
 260         if (PRC_IS_REDIRECT(cmd)) {
 261                 vip = NULL;
 262         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 263                 return;
 264         }
 265         if (vip != NULL) {
 266                 inner_ip = (struct ip *)vip;
 267                 icmp = (struct icmp *)((caddr_t)inner_ip -
 268                     (sizeof(struct icmp) - sizeof(struct ip)));
 269                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 270                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 271                 memset(&src, 0, sizeof(struct sockaddr_in));
 272                 src.sin_family = AF_INET;
 273                 src.sin_len = sizeof(struct sockaddr_in);
 274                 src.sin_port = sh->src_port;
 275                 src.sin_addr = inner_ip->ip_src;
 276                 memset(&dst, 0, sizeof(struct sockaddr_in));
 277                 dst.sin_family = AF_INET;
 278                 dst.sin_len = sizeof(struct sockaddr_in);
 279                 dst.sin_port = sh->dest_port;
 280                 dst.sin_addr = inner_ip->ip_dst;
 281                 /*
 282                  * 'dst' holds the dest of the packet that failed to be
 283                  * sent. 'src' holds our local endpoint address. Thus we
 284                  * reverse the dst and the src in the lookup.
 285                  */
 286                 inp = NULL;
 287                 net = NULL;
 288                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 289                     (struct sockaddr *)&src,
 290                     &inp, &net, 1,
 291                     SCTP_DEFAULT_VRFID);
 292                 if ((stcb != NULL) &&
 293                     (net != NULL) &&
 294                     (inp != NULL)) {
 295                         /* Check the verification tag */
 296                         if (ntohl(sh->v_tag) != 0) {
 297                                 /*
 298                                  * This must be the verification tag used
 299                                  * for sending out packets. We don't
 300                                  * consider packets reflecting the
 301                                  * verification tag.
 302                                  */
 303                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 304                                         SCTP_TCB_UNLOCK(stcb);
 305                                         return;
 306                                 }
 307                         } else {
 308                                 if (ntohs(outer_ip->ip_len) >=
 309                                     sizeof(struct ip) +
 310                                     8 + (inner_ip->ip_hl << 2) + 20) {
 311                                         /*
 312                                          * In this case we can check if we
 313                                          * got an INIT chunk and if the
 314                                          * initiate tag matches.
 315                                          */
 316                                         ch = (struct sctp_init_chunk *)(sh + 1);
 317                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 318                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 319                                                 SCTP_TCB_UNLOCK(stcb);
 320                                                 return;
 321                                         }
 322                                 } else {
 323                                         SCTP_TCB_UNLOCK(stcb);
 324                                         return;
 325                                 }
 326                         }
 327                         sctp_notify(inp, stcb, net,
 328                             icmp->icmp_type,
 329                             icmp->icmp_code,
 330                             ntohs(inner_ip->ip_len),
 331                             ntohs(icmp->icmp_nextmtu));
 332                 } else {
 333                         if ((stcb == NULL) && (inp != NULL)) {
 334                                 /* reduce ref-count */
 335                                 SCTP_INP_WLOCK(inp);
 336                                 SCTP_INP_DECR_REF(inp);
 337                                 SCTP_INP_WUNLOCK(inp);
 338                         }
 339                         if (stcb) {
 340                                 SCTP_TCB_UNLOCK(stcb);
 341                         }
 342                 }
 343         }
 344         return;
 345 }
 346
 347 #endif
 348
 349 static int
 350 sctp_getcred(SYSCTL_HANDLER_ARGS)
 351 {
 352         struct xucred xuc;
 353         struct sockaddr_in addrs[2];
 354         struct sctp_inpcb *inp;
 355         struct sctp_nets *net;
 356         struct sctp_tcb *stcb;
 357         int error;
 358         uint32_t vrf_id;
 359
 360         /* FIX, for non-bsd is this right? */
 361         vrf_id = SCTP_DEFAULT_VRFID;
 362
 363         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 364
 365         if (error)
 366                 return (error);
 367
 368         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 369         if (error)
 370                 return (error);
 371
 372         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 373             sintosa(&addrs[0]),
 374             &inp, &net, 1, vrf_id);
 375         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 376                 if ((inp != NULL) && (stcb == NULL)) {
 377                         /* reduce ref-count */
 378                         SCTP_INP_WLOCK(inp);
 379                         SCTP_INP_DECR_REF(inp);
 380                         goto cred_can_cont;
 381                 }
 382                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 383                 error = ENOENT;
 384                 goto out;
 385         }
 386         SCTP_TCB_UNLOCK(stcb);
 387         /*
 388          * We use the write lock here, only since in the error leg we need
 389          * it. If we used RLOCK, then we would have to
 390          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 391          * Better to use higher wlock.
 392          */
 393         SCTP_INP_WLOCK(inp);
 394 cred_can_cont:
 395         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 396         if (error) {
 397                 SCTP_INP_WUNLOCK(inp);
 398                 goto out;
 399         }
 400         cru2x(inp->sctp_socket->so_cred, &xuc);
 401         SCTP_INP_WUNLOCK(inp);
 402         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 403 out:
 404         return (error);
 405 }
 406
 407 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 408     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 409
 410
 411 #ifdef INET
 412 static void
 413 sctp_abort(struct socket *so)
 414 {
 415         struct sctp_inpcb *inp;
 416         uint32_t flags;
 417
 418         inp = (struct sctp_inpcb *)so->so_pcb;
 419         if (inp == NULL) {
 420                 return;
 421         }
 422 sctp_must_try_again:
 423         flags = inp->sctp_flags;
 424 #ifdef SCTP_LOG_CLOSING
 425         sctp_log_closing(inp, NULL, 17);
 426 #endif
 427         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 428             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 429 #ifdef SCTP_LOG_CLOSING
 430                 sctp_log_closing(inp, NULL, 16);
 431 #endif
 432                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 433                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 434                 SOCK_LOCK(so);
 435                 SCTP_SB_CLEAR(so->so_snd);
 436                 /*
 437                  * same for the rcv ones, they are only here for the
 438                  * accounting/select.
 439                  */
 440                 SCTP_SB_CLEAR(so->so_rcv);
 441
 442                 /* Now null out the reference, we are completely detached. */
 443                 so->so_pcb = NULL;
 444                 SOCK_UNLOCK(so);
 445         } else {
 446                 flags = inp->sctp_flags;
 447                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 448                         goto sctp_must_try_again;
 449                 }
 450         }
 451         return;
 452 }
 453
 454 static int
 455 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 456 {
 457         struct sctp_inpcb *inp;
 458         struct inpcb *ip_inp;
 459         int error;
 460         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 461
 462         inp = (struct sctp_inpcb *)so->so_pcb;
 463         if (inp != NULL) {
 464                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 465                 return (EINVAL);
 466         }
 467         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 468                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 469                 if (error) {
 470                         return (error);
 471                 }
 472         }
 473         error = sctp_inpcb_alloc(so, vrf_id);
 474         if (error) {
 475                 return (error);
 476         }
 477         inp = (struct sctp_inpcb *)so->so_pcb;
 478         SCTP_INP_WLOCK(inp);
 479         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 480         ip_inp = &inp->ip_inp.inp;
 481         ip_inp->inp_vflag |= INP_IPV4;
 482         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 483         SCTP_INP_WUNLOCK(inp);
 484         return (0);
 485 }
 486
 487 static int
 488 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 489 {
 490         struct sctp_inpcb *inp;
 491
 492         inp = (struct sctp_inpcb *)so->so_pcb;
 493         if (inp == NULL) {
 494                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 495                 return (EINVAL);
 496         }
 497         if (addr != NULL) {
 498                 if ((addr->sa_family != AF_INET) ||
 499                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 500                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 501                         return (EINVAL);
 502                 }
 503         }
 504         return (sctp_inpcb_bind(so, addr, NULL, p));
 505 }
 506
 507 #endif
 508 void
 509 sctp_close(struct socket *so)
 510 {
 511         struct sctp_inpcb *inp;
 512         uint32_t flags;
 513
 514         inp = (struct sctp_inpcb *)so->so_pcb;
 515         if (inp == NULL)
 516                 return;
 517
 518         /*
 519          * Inform all the lower layer assoc that we are done.
 520          */
 521 sctp_must_try_again:
 522         flags = inp->sctp_flags;
 523 #ifdef SCTP_LOG_CLOSING
 524         sctp_log_closing(inp, NULL, 17);
 525 #endif
 526         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 527             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 528                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 529                     (so->so_rcv.sb_cc > 0)) {
 530 #ifdef SCTP_LOG_CLOSING
 531                         sctp_log_closing(inp, NULL, 13);
 532 #endif
 533                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 534                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 535                 } else {
 536 #ifdef SCTP_LOG_CLOSING
 537                         sctp_log_closing(inp, NULL, 14);
 538 #endif
 539                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 540                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 541                 }
 542                 /*
 543                  * The socket is now detached, no matter what the state of
 544                  * the SCTP association.
 545                  */
 546                 SOCK_LOCK(so);
 547                 SCTP_SB_CLEAR(so->so_snd);
 548                 /*
 549                  * same for the rcv ones, they are only here for the
 550                  * accounting/select.
 551                  */
 552                 SCTP_SB_CLEAR(so->so_rcv);
 553
 554                 /* Now null out the reference, we are completely detached. */
 555                 so->so_pcb = NULL;
 556                 SOCK_UNLOCK(so);
 557         } else {
 558                 flags = inp->sctp_flags;
 559                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 560                         goto sctp_must_try_again;
 561                 }
 562         }
 563         return;
 564 }
 565
 566
 567 int
 568 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 569     struct mbuf *control, struct thread *p);
 570
 571
 572 int
 573 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 574     struct mbuf *control, struct thread *p)
 575 {
 576         struct sctp_inpcb *inp;
 577         int error;
 578
 579         inp = (struct sctp_inpcb *)so->so_pcb;
 580         if (inp == NULL) {
 581                 if (control) {
 582                         sctp_m_freem(control);
 583                         control = NULL;
 584                 }
 585                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 586                 sctp_m_freem(m);
 587                 return (EINVAL);
 588         }
 589         /* Got to have an to address if we are NOT a connected socket */
 590         if ((addr == NULL) &&
 591             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 592             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 593                 goto connected_type;
 594         } else if (addr == NULL) {
 595                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 596                 error = EDESTADDRREQ;
 597                 sctp_m_freem(m);
 598                 if (control) {
 599                         sctp_m_freem(control);
 600                         control = NULL;
 601                 }
 602                 return (error);
 603         }
 604 #ifdef INET6
 605         if (addr->sa_family != AF_INET) {
 606                 /* must be a v4 address! */
 607                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 608                 sctp_m_freem(m);
 609                 if (control) {
 610                         sctp_m_freem(control);
 611                         control = NULL;
 612                 }
 613                 error = EDESTADDRREQ;
 614                 return (error);
 615         }
 616 #endif                          /* INET6 */
 617 connected_type:
 618         /* now what about control */
 619         if (control) {
 620                 if (inp->control) {
 621                         SCTP_PRINTF("huh? control set?\n");
 622                         sctp_m_freem(inp->control);
 623                         inp->control = NULL;
 624                 }
 625                 inp->control = control;
 626         }
 627         /* Place the data */
 628         if (inp->pkt) {
 629                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 630                 inp->pkt_last = m;
 631         } else {
 632                 inp->pkt_last = inp->pkt = m;
 633         }
 634         if (
 635         /* FreeBSD uses a flag passed */
 636             ((flags & PRUS_MORETOCOME) == 0)
 637             ) {
 638                 /*
 639                  * note with the current version this code will only be used
 640                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 641                  * re-defining sosend to use the sctp_sosend. One can
 642                  * optionally switch back to this code (by changing back the
 643                  * definitions) but this is not advisable. This code is used
 644                  * by FreeBSD when sending a file with sendfile() though.
 645                  */
 646                 int ret;
 647
 648                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 649                 inp->pkt = NULL;
 650                 inp->control = NULL;
 651                 return (ret);
 652         } else {
 653                 return (0);
 654         }
 655 }
 656
 657 int
 658 sctp_disconnect(struct socket *so)
 659 {
 660         struct sctp_inpcb *inp;
 661
 662         inp = (struct sctp_inpcb *)so->so_pcb;
 663         if (inp == NULL) {
 664                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 665                 return (ENOTCONN);
 666         }
 667         SCTP_INP_RLOCK(inp);
 668         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 669             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 670                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 671                         /* No connection */
 672                         SCTP_INP_RUNLOCK(inp);
 673                         return (0);
 674                 } else {
 675                         struct sctp_association *asoc;
 676                         struct sctp_tcb *stcb;
 677
 678                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 679                         if (stcb == NULL) {
 680                                 SCTP_INP_RUNLOCK(inp);
 681                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 682                                 return (EINVAL);
 683                         }
 684                         SCTP_TCB_LOCK(stcb);
 685                         asoc = &stcb->asoc;
 686                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 687                                 /* We are about to be freed, out of here */
 688                                 SCTP_TCB_UNLOCK(stcb);
 689                                 SCTP_INP_RUNLOCK(inp);
 690                                 return (0);
 691                         }
 692                         if (((so->so_options & SO_LINGER) &&
 693                             (so->so_linger == 0)) ||
 694                             (so->so_rcv.sb_cc > 0)) {
 695                                 if (SCTP_GET_STATE(asoc) !=
 696                                     SCTP_STATE_COOKIE_WAIT) {
 697                                         /* Left with Data unread */
 698                                         struct mbuf *err;
 699
 700                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 701                                         if (err) {
 702                                                 /*
 703                                                  * Fill in the user
 704                                                  * initiated abort
 705                                                  */
 706                                                 struct sctp_paramhdr *ph;
 707
 708                                                 ph = mtod(err, struct sctp_paramhdr *);
 709                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 710                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 711                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 712                                         }
 713                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 714                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 715                                 }
 716                                 SCTP_INP_RUNLOCK(inp);
 717                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 718                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 719                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 720                                 }
 721                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 722                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 723                                 /* No unlock tcb assoc is gone */
 724                                 return (0);
 725                         }
 726                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 727                             TAILQ_EMPTY(&asoc->sent_queue) &&
 728                             (asoc->stream_queue_cnt == 0)) {
 729                                 /* there is nothing queued to send, so done */
 730                                 if (asoc->locked_on_sending) {
 731                                         goto abort_anyway;
 732                                 }
 733                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 734                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 735                                         /* only send SHUTDOWN 1st time thru */
 736                                         struct sctp_nets *netp;
 737
 738                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 739                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 740                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 741                                         }
 742                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 743                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 744                                         sctp_stop_timers_for_shutdown(stcb);
 745                                         if (stcb->asoc.alternate) {
 746                                                 netp = stcb->asoc.alternate;
 747                                         } else {
 748                                                 netp = stcb->asoc.primary_destination;
 749                                         }
 750                                         sctp_send_shutdown(stcb, netp);
 751                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 752                                             stcb->sctp_ep, stcb, netp);
 753                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 754                                             stcb->sctp_ep, stcb, netp);
 755                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 756                                 }
 757                         } else {
 758                                 /*
 759                                  * we still got (or just got) data to send,
 760                                  * so set SHUTDOWN_PENDING
 761                                  */
 762                                 /*
 763                                  * XXX sockets draft says that SCTP_EOF
 764                                  * should be sent with no data. currently,
 765                                  * we will allow user data to be sent first
 766                                  * and move to SHUTDOWN-PENDING
 767                                  */
 768                                 struct sctp_nets *netp;
 769
 770                                 if (stcb->asoc.alternate) {
 771                                         netp = stcb->asoc.alternate;
 772                                 } else {
 773                                         netp = stcb->asoc.primary_destination;
 774                                 }
 775
 776                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 777                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 778                                     netp);
 779                                 if (asoc->locked_on_sending) {
 780                                         /* Locked to send out the data */
 781                                         struct sctp_stream_queue_pending *sp;
 782
 783                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 784                                         if (sp == NULL) {
 785                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 786                                                     asoc->locked_on_sending->stream_no);
 787                                         } else {
 788                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 789                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 790                                         }
 791                                 }
 792                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 793                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 794                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 795                                         struct mbuf *op_err;
 796
 797                         abort_anyway:
 798                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 799                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 800                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 801                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 802                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 803                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 804                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 805                                         }
 806                                         SCTP_INP_RUNLOCK(inp);
 807                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 808                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 809                                         return (0);
 810                                 } else {
 811                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 812                                 }
 813                         }
 814                         soisdisconnecting(so);
 815                         SCTP_TCB_UNLOCK(stcb);
 816                         SCTP_INP_RUNLOCK(inp);
 817                         return (0);
 818                 }
 819                 /* not reached */
 820         } else {
 821                 /* UDP model does not support this */
 822                 SCTP_INP_RUNLOCK(inp);
 823                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 824                 return (EOPNOTSUPP);
 825         }
 826 }
 827
 828 int
 829 sctp_flush(struct socket *so, int how)
 830 {
 831         /*
 832          * We will just clear out the values and let subsequent close clear
 833          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 834          * they will not be able to read the data, the socket will block
 835          * that from happening.
 836          */
 837         struct sctp_inpcb *inp;
 838
 839         inp = (struct sctp_inpcb *)so->so_pcb;
 840         if (inp == NULL) {
 841                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 842                 return (EINVAL);
 843         }
 844         SCTP_INP_RLOCK(inp);
 845         /* For the 1 to many model this does nothing */
 846         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 847                 SCTP_INP_RUNLOCK(inp);
 848                 return (0);
 849         }
 850         SCTP_INP_RUNLOCK(inp);
 851         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 852                 /*
 853                  * First make sure the sb will be happy, we don't use these
 854                  * except maybe the count
 855                  */
 856                 SCTP_INP_WLOCK(inp);
 857                 SCTP_INP_READ_LOCK(inp);
 858                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 859                 SCTP_INP_READ_UNLOCK(inp);
 860                 SCTP_INP_WUNLOCK(inp);
 861                 so->so_rcv.sb_cc = 0;
 862                 so->so_rcv.sb_mbcnt = 0;
 863                 so->so_rcv.sb_mb = NULL;
 864         }
 865         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 866                 /*
 867                  * First make sure the sb will be happy, we don't use these
 868                  * except maybe the count
 869                  */
 870                 so->so_snd.sb_cc = 0;
 871                 so->so_snd.sb_mbcnt = 0;
 872                 so->so_snd.sb_mb = NULL;
 873
 874         }
 875         return (0);
 876 }
 877
 878 int
 879 sctp_shutdown(struct socket *so)
 880 {
 881         struct sctp_inpcb *inp;
 882
 883         inp = (struct sctp_inpcb *)so->so_pcb;
 884         if (inp == NULL) {
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 886                 return (EINVAL);
 887         }
 888         SCTP_INP_RLOCK(inp);
 889         /* For UDP model this is a invalid call */
 890         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 891             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 892                 /* Restore the flags that the soshutdown took away. */
 893                 SOCKBUF_LOCK(&so->so_rcv);
 894                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 895                 SOCKBUF_UNLOCK(&so->so_rcv);
 896                 /* This proc will wakeup for read and do nothing (I hope) */
 897                 SCTP_INP_RUNLOCK(inp);
 898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 899                 return (EOPNOTSUPP);
 900         } else {
 901                 /*
 902                  * Ok, if we reach here its the TCP model and it is either a
 903                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 904                  * against it.
 905                  */
 906                 struct sctp_tcb *stcb;
 907                 struct sctp_association *asoc;
 908                 struct sctp_nets *netp;
 909
 910                 if ((so->so_state &
 911                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (ENOTCONN);
 914                 }
 915                 socantsendmore(so);
 916
 917                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 918                 if (stcb == NULL) {
 919                         /*
 920                          * Ok, we hit the case that the shutdown call was
 921                          * made after an abort or something. Nothing to do
 922                          * now.
 923                          */
 924                         SCTP_INP_RUNLOCK(inp);
 925                         return (0);
 926                 }
 927                 SCTP_TCB_LOCK(stcb);
 928                 asoc = &stcb->asoc;
 929                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 930                         SCTP_TCB_UNLOCK(stcb);
 931                         SCTP_INP_RUNLOCK(inp);
 932                         return (0);
 933                 }
 934                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 935                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 936                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 937                         /*
 938                          * If we are not in or before ESTABLISHED, there is
 939                          * no protocol action required.
 940                          */
 941                         SCTP_TCB_UNLOCK(stcb);
 942                         SCTP_INP_RUNLOCK(inp);
 943                         return (0);
 944                 }
 945                 if (stcb->asoc.alternate) {
 946                         netp = stcb->asoc.alternate;
 947                 } else {
 948                         netp = stcb->asoc.primary_destination;
 949                 }
 950                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 951                     TAILQ_EMPTY(&asoc->send_queue) &&
 952                     TAILQ_EMPTY(&asoc->sent_queue) &&
 953                     (asoc->stream_queue_cnt == 0)) {
 954                         if (asoc->locked_on_sending) {
 955                                 goto abort_anyway;
 956                         }
 957                         /* there is nothing queued to send, so I'm done... */
 958                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 959                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 960                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 961                         sctp_stop_timers_for_shutdown(stcb);
 962                         sctp_send_shutdown(stcb, netp);
 963                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 964                             stcb->sctp_ep, stcb, netp);
 965                 } else {
 966                         /*
 967                          * We still got (or just got) data to send, so set
 968                          * SHUTDOWN_PENDING.
 969                          */
 970                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 971                         if (asoc->locked_on_sending) {
 972                                 /* Locked to send out the data */
 973                                 struct sctp_stream_queue_pending *sp;
 974
 975                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 976                                 if (sp == NULL) {
 977                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 978                                             asoc->locked_on_sending->stream_no);
 979                                 } else {
 980                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 981                                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 982                                         }
 983                                 }
 984                         }
 985                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 986                             TAILQ_EMPTY(&asoc->sent_queue) &&
 987                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 988                                 struct mbuf *op_err;
 989
 990                 abort_anyway:
 991                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 992                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 993                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 994                                     op_err, SCTP_SO_LOCKED);
 995                                 SCTP_INP_RUNLOCK(inp);
 996                                 return (0);
 997                         }
 998                 }
 999                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
1000                 /*
1001                  * XXX: Why do this in the case where we have still data
1002                  * queued?
1003                  */
1004                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1005                 SCTP_TCB_UNLOCK(stcb);
1006                 SCTP_INP_RUNLOCK(inp);
1007                 return (0);
1008         }
1009 }
1010
1011 /*
1012  * copies a "user" presentable address and removes embedded scope, etc.
1013  * returns 0 on success, 1 on error
1014  */
1015 static uint32_t
1016 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1017 {
1018 #ifdef INET6
1019         struct sockaddr_in6 lsa6;
1020
1021         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1022             &lsa6);
1023 #endif
1024         memcpy(ss, sa, sa->sa_len);
1025         return (0);
1026 }
1027
1028
1029
1030 /*
1031  * NOTE: assumes addr lock is held
1032  */
1033 static size_t
1034 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1035     struct sctp_tcb *stcb,
1036     size_t limit,
1037     struct sockaddr_storage *sas,
1038     uint32_t vrf_id)
1039 {
1040         struct sctp_ifn *sctp_ifn;
1041         struct sctp_ifa *sctp_ifa;
1042         size_t actual;
1043         int loopback_scope;
1044
1045 #if defined(INET)
1046         int ipv4_local_scope, ipv4_addr_legal;
1047
1048 #endif
1049 #if defined(INET6)
1050         int local_scope, site_scope, ipv6_addr_legal;
1051
1052 #endif
1053         struct sctp_vrf *vrf;
1054
1055         actual = 0;
1056         if (limit <= 0)
1057                 return (actual);
1058
1059         if (stcb) {
1060                 /* Turn on all the appropriate scope */
1061                 loopback_scope = stcb->asoc.scope.loopback_scope;
1062 #if defined(INET)
1063                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1064                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1065 #endif
1066 #if defined(INET6)
1067                 local_scope = stcb->asoc.scope.local_scope;
1068                 site_scope = stcb->asoc.scope.site_scope;
1069                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1070 #endif
1071         } else {
1072                 /* Use generic values for endpoints. */
1073                 loopback_scope = 1;
1074 #if defined(INET)
1075                 ipv4_local_scope = 1;
1076 #endif
1077 #if defined(INET6)
1078                 local_scope = 1;
1079                 site_scope = 1;
1080 #endif
1081                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1082 #if defined(INET6)
1083                         ipv6_addr_legal = 1;
1084 #endif
1085 #if defined(INET)
1086                         if (SCTP_IPV6_V6ONLY(inp)) {
1087                                 ipv4_addr_legal = 0;
1088                         } else {
1089                                 ipv4_addr_legal = 1;
1090                         }
1091 #endif
1092                 } else {
1093 #if defined(INET6)
1094                         ipv6_addr_legal = 0;
1095 #endif
1096 #if defined(INET)
1097                         ipv4_addr_legal = 1;
1098 #endif
1099                 }
1100         }
1101         vrf = sctp_find_vrf(vrf_id);
1102         if (vrf == NULL) {
1103                 return (0);
1104         }
1105         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1106                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1107                         if ((loopback_scope == 0) &&
1108                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1109                                 /* Skip loopback if loopback_scope not set */
1110                                 continue;
1111                         }
1112                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1113                                 if (stcb) {
1114                                         /*
1115                                          * For the BOUND-ALL case, the list
1116                                          * associated with a TCB is Always
1117                                          * considered a reverse list.. i.e.
1118                                          * it lists addresses that are NOT
1119                                          * part of the association. If this
1120                                          * is one of those we must skip it.
1121                                          */
1122                                         if (sctp_is_addr_restricted(stcb,
1123                                             sctp_ifa)) {
1124                                                 continue;
1125                                         }
1126                                 }
1127                                 switch (sctp_ifa->address.sa.sa_family) {
1128 #ifdef INET
1129                                 case AF_INET:
1130                                         if (ipv4_addr_legal) {
1131                                                 struct sockaddr_in *sin;
1132
1133                                                 sin = &sctp_ifa->address.sin;
1134                                                 if (sin->sin_addr.s_addr == 0) {
1135                                                         /*
1136                                                          * we skip
1137                                                          * unspecifed
1138                                                          * addresses
1139                                                          */
1140                                                         continue;
1141                                                 }
1142                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1143                                                     &sin->sin_addr) != 0) {
1144                                                         continue;
1145                                                 }
1146                                                 if ((ipv4_local_scope == 0) &&
1147                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1148                                                         continue;
1149                                                 }
1150 #ifdef INET6
1151                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1152                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1153                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1154                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1155                                                         actual += sizeof(struct sockaddr_in6);
1156                                                 } else {
1157 #endif
1158                                                         memcpy(sas, sin, sizeof(*sin));
1159                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1160                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1161                                                         actual += sizeof(*sin);
1162 #ifdef INET6
1163                                                 }
1164 #endif
1165                                                 if (actual >= limit) {
1166                                                         return (actual);
1167                                                 }
1168                                         } else {
1169                                                 continue;
1170                                         }
1171                                         break;
1172 #endif
1173 #ifdef INET6
1174                                 case AF_INET6:
1175                                         if (ipv6_addr_legal) {
1176                                                 struct sockaddr_in6 *sin6;
1177
1178                                                 sin6 = &sctp_ifa->address.sin6;
1179                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1180                                                         /*
1181                                                          * we skip
1182                                                          * unspecifed
1183                                                          * addresses
1184                                                          */
1185                                                         continue;
1186                                                 }
1187                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1188                                                     &sin6->sin6_addr) != 0) {
1189                                                         continue;
1190                                                 }
1191                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1192                                                         if (local_scope == 0)
1193                                                                 continue;
1194                                                         if (sin6->sin6_scope_id == 0) {
1195                                                                 if (sa6_recoverscope(sin6) != 0)
1196                                                                         /*
1197                                                                          *
1198                                                                          * bad
1199                                                                          *
1200                                                                          * li
1201                                                                          * nk
1202                                                                          *
1203                                                                          * loc
1204                                                                          * al
1205                                                                          *
1206                                                                          * add
1207                                                                          * re
1208                                                                          * ss
1209                                                                          * */
1210                                                                         continue;
1211                                                         }
1212                                                 }
1213                                                 if ((site_scope == 0) &&
1214                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1215                                                         continue;
1216                                                 }
1217                                                 memcpy(sas, sin6, sizeof(*sin6));
1218                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1219                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1220                                                 actual += sizeof(*sin6);
1221                                                 if (actual >= limit) {
1222                                                         return (actual);
1223                                                 }
1224                                         } else {
1225                                                 continue;
1226                                         }
1227                                         break;
1228 #endif
1229                                 default:
1230                                         /* TSNH */
1231                                         break;
1232                                 }
1233                         }
1234                 }
1235         } else {
1236                 struct sctp_laddr *laddr;
1237
1238                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1239                         if (stcb) {
1240                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1241                                         continue;
1242                                 }
1243                         }
1244                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1245                                 continue;
1246                         switch (laddr->ifa->address.sa.sa_family) {
1247 #ifdef INET
1248                         case AF_INET:
1249                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1250                                 break;
1251 #endif
1252 #ifdef INET6
1253                         case AF_INET6:
1254                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1255                                 break;
1256 #endif
1257                         default:
1258                                 /* TSNH */
1259                                 break;
1260                         }
1261                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1262                             laddr->ifa->address.sa.sa_len);
1263                         actual += laddr->ifa->address.sa.sa_len;
1264                         if (actual >= limit) {
1265                                 return (actual);
1266                         }
1267                 }
1268         }
1269         return (actual);
1270 }
1271
1272 static size_t
1273 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1274     struct sctp_tcb *stcb,
1275     size_t limit,
1276     struct sockaddr_storage *sas)
1277 {
1278         size_t size = 0;
1279
1280         SCTP_IPI_ADDR_RLOCK();
1281         /* fill up addresses for the endpoint's default vrf */
1282         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1283             inp->def_vrf_id);
1284         SCTP_IPI_ADDR_RUNLOCK();
1285         return (size);
1286 }
1287
1288 /*
1289  * NOTE: assumes addr lock is held
1290  */
1291 static int
1292 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1293 {
1294         int cnt = 0;
1295         struct sctp_vrf *vrf = NULL;
1296
1297         /*
1298          * In both sub-set bound an bound_all cases we return the MAXIMUM
1299          * number of addresses that you COULD get. In reality the sub-set
1300          * bound may have an exclusion list for a given TCB OR in the
1301          * bound-all case a TCB may NOT include the loopback or other
1302          * addresses as well.
1303          */
1304         vrf = sctp_find_vrf(vrf_id);
1305         if (vrf == NULL) {
1306                 return (0);
1307         }
1308         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1309                 struct sctp_ifn *sctp_ifn;
1310                 struct sctp_ifa *sctp_ifa;
1311
1312                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1313                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1314                                 /* Count them if they are the right type */
1315                                 switch (sctp_ifa->address.sa.sa_family) {
1316 #ifdef INET
1317                                 case AF_INET:
1318 #ifdef INET6
1319                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1320                                                 cnt += sizeof(struct sockaddr_in6);
1321                                         else
1322                                                 cnt += sizeof(struct sockaddr_in);
1323 #else
1324                                         cnt += sizeof(struct sockaddr_in);
1325 #endif
1326                                         break;
1327 #endif
1328 #ifdef INET6
1329                                 case AF_INET6:
1330                                         cnt += sizeof(struct sockaddr_in6);
1331                                         break;
1332 #endif
1333                                 default:
1334                                         break;
1335                                 }
1336                         }
1337                 }
1338         } else {
1339                 struct sctp_laddr *laddr;
1340
1341                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1342                         switch (laddr->ifa->address.sa.sa_family) {
1343 #ifdef INET
1344                         case AF_INET:
1345 #ifdef INET6
1346                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1347                                         cnt += sizeof(struct sockaddr_in6);
1348                                 else
1349                                         cnt += sizeof(struct sockaddr_in);
1350 #else
1351                                 cnt += sizeof(struct sockaddr_in);
1352 #endif
1353                                 break;
1354 #endif
1355 #ifdef INET6
1356                         case AF_INET6:
1357                                 cnt += sizeof(struct sockaddr_in6);
1358                                 break;
1359 #endif
1360                         default:
1361                                 break;
1362                         }
1363                 }
1364         }
1365         return (cnt);
1366 }
1367
1368 static int
1369 sctp_count_max_addresses(struct sctp_inpcb *inp)
1370 {
1371         int cnt = 0;
1372
1373         SCTP_IPI_ADDR_RLOCK();
1374         /* count addresses for the endpoint's default VRF */
1375         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1376         SCTP_IPI_ADDR_RUNLOCK();
1377         return (cnt);
1378 }
1379
1380 static int
1381 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1382     size_t optsize, void *p, int delay)
1383 {
1384         int error = 0;
1385         int creat_lock_on = 0;
1386         struct sctp_tcb *stcb = NULL;
1387         struct sockaddr *sa;
1388         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1389         uint32_t vrf_id;
1390         int bad_addresses = 0;
1391         sctp_assoc_t *a_id;
1392
1393         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1394
1395         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1396             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1397                 /* We are already connected AND the TCP model */
1398                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1399                 return (EADDRINUSE);
1400         }
1401         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1402             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1403                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1404                 return (EINVAL);
1405         }
1406         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1407                 SCTP_INP_RLOCK(inp);
1408                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1409                 SCTP_INP_RUNLOCK(inp);
1410         }
1411         if (stcb) {
1412                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1413                 return (EALREADY);
1414         }
1415         SCTP_INP_INCR_REF(inp);
1416         SCTP_ASOC_CREATE_LOCK(inp);
1417         creat_lock_on = 1;
1418         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1419             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1420                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1421                 error = EFAULT;
1422                 goto out_now;
1423         }
1424         totaddrp = (unsigned int *)optval;
1425         totaddr = *totaddrp;
1426         sa = (struct sockaddr *)(totaddrp + 1);
1427         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1428         if ((stcb != NULL) || bad_addresses) {
1429                 /* Already have or am bring up an association */
1430                 SCTP_ASOC_CREATE_UNLOCK(inp);
1431                 creat_lock_on = 0;
1432                 if (stcb)
1433                         SCTP_TCB_UNLOCK(stcb);
1434                 if (bad_addresses == 0) {
1435                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1436                         error = EALREADY;
1437                 }
1438                 goto out_now;
1439         }
1440 #ifdef INET6
1441         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1442             (num_v6 > 0)) {
1443                 error = EINVAL;
1444                 goto out_now;
1445         }
1446         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1447             (num_v4 > 0)) {
1448                 struct in6pcb *inp6;
1449
1450                 inp6 = (struct in6pcb *)inp;
1451                 if (SCTP_IPV6_V6ONLY(inp6)) {
1452                         /*
1453                          * if IPV6_V6ONLY flag, ignore connections destined
1454                          * to a v4 addr or v4-mapped addr
1455                          */
1456                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1457                         error = EINVAL;
1458                         goto out_now;
1459                 }
1460         }
1461 #endif                          /* INET6 */
1462         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1463             SCTP_PCB_FLAGS_UNBOUND) {
1464                 /* Bind a ephemeral port */
1465                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1466                 if (error) {
1467                         goto out_now;
1468                 }
1469         }
1470         /* FIX ME: do we want to pass in a vrf on the connect call? */
1471         vrf_id = inp->def_vrf_id;
1472
1473
1474         /* We are GOOD to go */
1475         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1476             inp->sctp_ep.pre_open_stream_count,
1477             inp->sctp_ep.port,
1478             (struct thread *)p
1479             );
1480         if (stcb == NULL) {
1481                 /* Gak! no memory */
1482                 goto out_now;
1483         }
1484         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1485                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1486                 /* Set the connected flag so we can queue data */
1487                 soisconnecting(so);
1488         }
1489         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1490         /* move to second address */
1491         switch (sa->sa_family) {
1492 #ifdef INET
1493         case AF_INET:
1494                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1495                 break;
1496 #endif
1497 #ifdef INET6
1498         case AF_INET6:
1499                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1500                 break;
1501 #endif
1502         default:
1503                 break;
1504         }
1505
1506         error = 0;
1507         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1508         /* Fill in the return id */
1509         if (error) {
1510                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1511                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1512                 goto out_now;
1513         }
1514         a_id = (sctp_assoc_t *) optval;
1515         *a_id = sctp_get_associd(stcb);
1516
1517         /* initialize authentication parameters for the assoc */
1518         sctp_initialize_auth_params(inp, stcb);
1519
1520         if (delay) {
1521                 /* doing delayed connection */
1522                 stcb->asoc.delayed_connection = 1;
1523                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1524         } else {
1525                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1526                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1527         }
1528         SCTP_TCB_UNLOCK(stcb);
1529         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1530                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1531                 /* Set the connected flag so we can queue data */
1532                 soisconnecting(so);
1533         }
1534 out_now:
1535         if (creat_lock_on) {
1536                 SCTP_ASOC_CREATE_UNLOCK(inp);
1537         }
1538         SCTP_INP_DECR_REF(inp);
1539         return (error);
1540 }
1541
1542 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1543         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1544             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1545                 SCTP_INP_RLOCK(inp); \
1546                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1547                 if (stcb) { \
1548                         SCTP_TCB_LOCK(stcb); \
1549                 } \
1550                 SCTP_INP_RUNLOCK(inp); \
1551         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1552                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1553                 if (stcb == NULL) { \
1554                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1555                         error = ENOENT; \
1556                         break; \
1557                 } \
1558         } else { \
1559                 stcb = NULL; \
1560         } \
1561   }
1562
1563
1564 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1565         if (size < sizeof(type)) { \
1566                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1567                 error = EINVAL; \
1568                 break; \
1569         } else { \
1570                 destp = (type *)srcp; \
1571         } \
1572       }
1573
1574 static int
1575 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1576     void *p)
1577 {
1578         struct sctp_inpcb *inp = NULL;
1579         int error, val = 0;
1580         struct sctp_tcb *stcb = NULL;
1581
1582         if (optval == NULL) {
1583                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1584                 return (EINVAL);
1585         }
1586         inp = (struct sctp_inpcb *)so->so_pcb;
1587         if (inp == NULL) {
1588                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1589                 return EINVAL;
1590         }
1591         error = 0;
1592
1593         switch (optname) {
1594         case SCTP_NODELAY:
1595         case SCTP_AUTOCLOSE:
1596         case SCTP_EXPLICIT_EOR:
1597         case SCTP_AUTO_ASCONF:
1598         case SCTP_DISABLE_FRAGMENTS:
1599         case SCTP_I_WANT_MAPPED_V4_ADDR:
1600         case SCTP_USE_EXT_RCVINFO:
1601                 SCTP_INP_RLOCK(inp);
1602                 switch (optname) {
1603                 case SCTP_DISABLE_FRAGMENTS:
1604                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1605                         break;
1606                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1607                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1608                         break;
1609                 case SCTP_AUTO_ASCONF:
1610                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1611                                 /* only valid for bound all sockets */
1612                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1613                         } else {
1614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1615                                 error = EINVAL;
1616                                 goto flags_out;
1617                         }
1618                         break;
1619                 case SCTP_EXPLICIT_EOR:
1620                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1621                         break;
1622                 case SCTP_NODELAY:
1623                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1624                         break;
1625                 case SCTP_USE_EXT_RCVINFO:
1626                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1627                         break;
1628                 case SCTP_AUTOCLOSE:
1629                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1630                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1631                         else
1632                                 val = 0;
1633                         break;
1634
1635                 default:
1636                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1637                         error = ENOPROTOOPT;
1638                 }               /* end switch (sopt->sopt_name) */
1639                 if (*optsize < sizeof(val)) {
1640                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1641                         error = EINVAL;
1642                 }
1643 flags_out:
1644                 SCTP_INP_RUNLOCK(inp);
1645                 if (error == 0) {
1646                         /* return the option value */
1647                         *(int *)optval = val;
1648                         *optsize = sizeof(val);
1649                 }
1650                 break;
1651         case SCTP_GET_PACKET_LOG:
1652                 {
1653 #ifdef  SCTP_PACKET_LOGGING
1654                         uint8_t *target;
1655                         int ret;
1656
1657                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1658                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1659                         *optsize = ret;
1660 #else
1661                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1662                         error = EOPNOTSUPP;
1663 #endif
1664                         break;
1665                 }
1666         case SCTP_REUSE_PORT:
1667                 {
1668                         uint32_t *value;
1669
1670                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1671                                 /* Can't do this for a 1-m socket */
1672                                 error = EINVAL;
1673                                 break;
1674                         }
1675                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1676                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1677                         *optsize = sizeof(uint32_t);
1678                         break;
1679                 }
1680         case SCTP_PARTIAL_DELIVERY_POINT:
1681                 {
1682                         uint32_t *value;
1683
1684                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1685                         *value = inp->partial_delivery_point;
1686                         *optsize = sizeof(uint32_t);
1687                         break;
1688                 }
1689         case SCTP_FRAGMENT_INTERLEAVE:
1690                 {
1691                         uint32_t *value;
1692
1693                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1694                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1695                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1696                                         *value = SCTP_FRAG_LEVEL_2;
1697                                 } else {
1698                                         *value = SCTP_FRAG_LEVEL_1;
1699                                 }
1700                         } else {
1701                                 *value = SCTP_FRAG_LEVEL_0;
1702                         }
1703                         *optsize = sizeof(uint32_t);
1704                         break;
1705                 }
1706         case SCTP_INTERLEAVING_SUPPORTED:
1707                 {
1708                         struct sctp_assoc_value *av;
1709
1710                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1711                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1712
1713                         if (stcb) {
1714                                 av->assoc_value = stcb->asoc.idata_supported;
1715                                 SCTP_TCB_UNLOCK(stcb);
1716                         } else {
1717                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1718                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1719                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1720                                         SCTP_INP_RLOCK(inp);
1721                                         if (inp->idata_supported) {
1722                                                 av->assoc_value = 1;
1723                                         } else {
1724                                                 av->assoc_value = 0;
1725                                         }
1726                                         SCTP_INP_RUNLOCK(inp);
1727                                 } else {
1728                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1729                                         error = EINVAL;
1730                                 }
1731                         }
1732                         if (error == 0) {
1733                                 *optsize = sizeof(struct sctp_assoc_value);
1734                         }
1735                         break;
1736                 }
1737         case SCTP_CMT_ON_OFF:
1738                 {
1739                         struct sctp_assoc_value *av;
1740
1741                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1742                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1743                         if (stcb) {
1744                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1745                                 SCTP_TCB_UNLOCK(stcb);
1746                         } else {
1747                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1748                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1749                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1750                                         SCTP_INP_RLOCK(inp);
1751                                         av->assoc_value = inp->sctp_cmt_on_off;
1752                                         SCTP_INP_RUNLOCK(inp);
1753                                 } else {
1754                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1755                                         error = EINVAL;
1756                                 }
1757                         }
1758                         if (error == 0) {
1759                                 *optsize = sizeof(struct sctp_assoc_value);
1760                         }
1761                         break;
1762                 }
1763         case SCTP_PLUGGABLE_CC:
1764                 {
1765                         struct sctp_assoc_value *av;
1766
1767                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1768                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1769                         if (stcb) {
1770                                 av->assoc_value = stcb->asoc.congestion_control_module;
1771                                 SCTP_TCB_UNLOCK(stcb);
1772                         } else {
1773                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1774                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1775                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1776                                         SCTP_INP_RLOCK(inp);
1777                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1778                                         SCTP_INP_RUNLOCK(inp);
1779                                 } else {
1780                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1781                                         error = EINVAL;
1782                                 }
1783                         }
1784                         if (error == 0) {
1785                                 *optsize = sizeof(struct sctp_assoc_value);
1786                         }
1787                         break;
1788                 }
1789         case SCTP_CC_OPTION:
1790                 {
1791                         struct sctp_cc_option *cc_opt;
1792
1793                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1794                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1795                         if (stcb == NULL) {
1796                                 error = EINVAL;
1797                         } else {
1798                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1799                                         error = ENOTSUP;
1800                                 } else {
1801                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1802                                         *optsize = sizeof(struct sctp_cc_option);
1803                                 }
1804                                 SCTP_TCB_UNLOCK(stcb);
1805                         }
1806                         break;
1807                 }
1808         case SCTP_PLUGGABLE_SS:
1809                 {
1810                         struct sctp_assoc_value *av;
1811
1812                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1813                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1814                         if (stcb) {
1815                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1816                                 SCTP_TCB_UNLOCK(stcb);
1817                         } else {
1818                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1819                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1820                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1821                                         SCTP_INP_RLOCK(inp);
1822                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1823                                         SCTP_INP_RUNLOCK(inp);
1824                                 } else {
1825                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1826                                         error = EINVAL;
1827                                 }
1828                         }
1829                         if (error == 0) {
1830                                 *optsize = sizeof(struct sctp_assoc_value);
1831                         }
1832                         break;
1833                 }
1834         case SCTP_SS_VALUE:
1835                 {
1836                         struct sctp_stream_value *av;
1837
1838                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1839                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1840                         if (stcb) {
1841                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1842                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1843                                     &av->stream_value) < 0)) {
1844                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1845                                         error = EINVAL;
1846                                 } else {
1847                                         *optsize = sizeof(struct sctp_stream_value);
1848                                 }
1849                                 SCTP_TCB_UNLOCK(stcb);
1850                         } else {
1851                                 /*
1852                                  * Can't get stream value without
1853                                  * association
1854                                  */
1855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1856                                 error = EINVAL;
1857                         }
1858                         break;
1859                 }
1860         case SCTP_GET_ADDR_LEN:
1861                 {
1862                         struct sctp_assoc_value *av;
1863
1864                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1865                         error = EINVAL;
1866 #ifdef INET
1867                         if (av->assoc_value == AF_INET) {
1868                                 av->assoc_value = sizeof(struct sockaddr_in);
1869                                 error = 0;
1870                         }
1871 #endif
1872 #ifdef INET6
1873                         if (av->assoc_value == AF_INET6) {
1874                                 av->assoc_value = sizeof(struct sockaddr_in6);
1875                                 error = 0;
1876                         }
1877 #endif
1878                         if (error) {
1879                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1880                         } else {
1881                                 *optsize = sizeof(struct sctp_assoc_value);
1882                         }
1883                         break;
1884                 }
1885         case SCTP_GET_ASSOC_NUMBER:
1886                 {
1887                         uint32_t *value, cnt;
1888
1889                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1890                         SCTP_INP_RLOCK(inp);
1891                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1892                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1893                                 /* Can't do this for a 1-1 socket */
1894                                 error = EINVAL;
1895                                 SCTP_INP_RUNLOCK(inp);
1896                                 break;
1897                         }
1898                         cnt = 0;
1899                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1900                                 cnt++;
1901                         }
1902                         SCTP_INP_RUNLOCK(inp);
1903                         *value = cnt;
1904                         *optsize = sizeof(uint32_t);
1905                         break;
1906                 }
1907         case SCTP_GET_ASSOC_ID_LIST:
1908                 {
1909                         struct sctp_assoc_ids *ids;
1910                         uint32_t at;
1911                         size_t limit;
1912
1913                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1914                         SCTP_INP_RLOCK(inp);
1915                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1916                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1917                                 /* Can't do this for a 1-1 socket */
1918                                 error = EINVAL;
1919                                 SCTP_INP_RUNLOCK(inp);
1920                                 break;
1921                         }
1922                         at = 0;
1923                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1924                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1925                                 if (at < limit) {
1926                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1927                                         if (at == 0) {
1928                                                 error = EINVAL;
1929                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1930                                                 break;
1931                                         }
1932                                 } else {
1933                                         error = EINVAL;
1934                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1935                                         break;
1936                                 }
1937                         }
1938                         SCTP_INP_RUNLOCK(inp);
1939                         if (error == 0) {
1940                                 ids->gaids_number_of_ids = at;
1941                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1942                         }
1943                         break;
1944                 }
1945         case SCTP_CONTEXT:
1946                 {
1947                         struct sctp_assoc_value *av;
1948
1949                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1950                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1951
1952                         if (stcb) {
1953                                 av->assoc_value = stcb->asoc.context;
1954                                 SCTP_TCB_UNLOCK(stcb);
1955                         } else {
1956                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1957                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1958                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1959                                         SCTP_INP_RLOCK(inp);
1960                                         av->assoc_value = inp->sctp_context;
1961                                         SCTP_INP_RUNLOCK(inp);
1962                                 } else {
1963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1964                                         error = EINVAL;
1965                                 }
1966                         }
1967                         if (error == 0) {
1968                                 *optsize = sizeof(struct sctp_assoc_value);
1969                         }
1970                         break;
1971                 }
1972         case SCTP_VRF_ID:
1973                 {
1974                         uint32_t *default_vrfid;
1975
1976                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1977                         *default_vrfid = inp->def_vrf_id;
1978                         *optsize = sizeof(uint32_t);
1979                         break;
1980                 }
1981         case SCTP_GET_ASOC_VRF:
1982                 {
1983                         struct sctp_assoc_value *id;
1984
1985                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1986                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1987                         if (stcb == NULL) {
1988                                 error = EINVAL;
1989                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1990                         } else {
1991                                 id->assoc_value = stcb->asoc.vrf_id;
1992                                 *optsize = sizeof(struct sctp_assoc_value);
1993                         }
1994                         break;
1995                 }
1996         case SCTP_GET_VRF_IDS:
1997                 {
1998                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1999                         error = EOPNOTSUPP;
2000                         break;
2001                 }
2002         case SCTP_GET_NONCE_VALUES:
2003                 {
2004                         struct sctp_get_nonce_values *gnv;
2005
2006                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2007                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2008
2009                         if (stcb) {
2010                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2011                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2012                                 SCTP_TCB_UNLOCK(stcb);
2013                                 *optsize = sizeof(struct sctp_get_nonce_values);
2014                         } else {
2015                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2016                                 error = ENOTCONN;
2017                         }
2018                         break;
2019                 }
2020         case SCTP_DELAYED_SACK:
2021                 {
2022                         struct sctp_sack_info *sack;
2023
2024                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2025                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2026                         if (stcb) {
2027                                 sack->sack_delay = stcb->asoc.delayed_ack;
2028                                 sack->sack_freq = stcb->asoc.sack_freq;
2029                                 SCTP_TCB_UNLOCK(stcb);
2030                         } else {
2031                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2032                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2033                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2034                                         SCTP_INP_RLOCK(inp);
2035                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2036                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2037                                         SCTP_INP_RUNLOCK(inp);
2038                                 } else {
2039                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2040                                         error = EINVAL;
2041                                 }
2042                         }
2043                         if (error == 0) {
2044                                 *optsize = sizeof(struct sctp_sack_info);
2045                         }
2046                         break;
2047                 }
2048         case SCTP_GET_SNDBUF_USE:
2049                 {
2050                         struct sctp_sockstat *ss;
2051
2052                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2053                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2054
2055                         if (stcb) {
2056                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2057                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2058                                     stcb->asoc.size_on_all_streams);
2059                                 SCTP_TCB_UNLOCK(stcb);
2060                                 *optsize = sizeof(struct sctp_sockstat);
2061                         } else {
2062                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2063                                 error = ENOTCONN;
2064                         }
2065                         break;
2066                 }
2067         case SCTP_MAX_BURST:
2068                 {
2069                         struct sctp_assoc_value *av;
2070
2071                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2072                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2073
2074                         if (stcb) {
2075                                 av->assoc_value = stcb->asoc.max_burst;
2076                                 SCTP_TCB_UNLOCK(stcb);
2077                         } else {
2078                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2079                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2080                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2081                                         SCTP_INP_RLOCK(inp);
2082                                         av->assoc_value = inp->sctp_ep.max_burst;
2083                                         SCTP_INP_RUNLOCK(inp);
2084                                 } else {
2085                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2086                                         error = EINVAL;
2087                                 }
2088                         }
2089                         if (error == 0) {
2090                                 *optsize = sizeof(struct sctp_assoc_value);
2091                         }
2092                         break;
2093                 }
2094         case SCTP_MAXSEG:
2095                 {
2096                         struct sctp_assoc_value *av;
2097                         int ovh;
2098
2099                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2100                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2101
2102                         if (stcb) {
2103                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2104                                 SCTP_TCB_UNLOCK(stcb);
2105                         } else {
2106                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2107                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2108                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2109                                         SCTP_INP_RLOCK(inp);
2110                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2111                                                 ovh = SCTP_MED_OVERHEAD;
2112                                         } else {
2113                                                 ovh = SCTP_MED_V4_OVERHEAD;
2114                                         }
2115                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2116                                                 av->assoc_value = 0;
2117                                         else
2118                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2119                                         SCTP_INP_RUNLOCK(inp);
2120                                 } else {
2121                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2122                                         error = EINVAL;
2123                                 }
2124                         }
2125                         if (error == 0) {
2126                                 *optsize = sizeof(struct sctp_assoc_value);
2127                         }
2128                         break;
2129                 }
2130         case SCTP_GET_STAT_LOG:
2131                 error = sctp_fill_stat_log(optval, optsize);
2132                 break;
2133         case SCTP_EVENTS:
2134                 {
2135                         struct sctp_event_subscribe *events;
2136
2137                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2138                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2139                         SCTP_INP_RLOCK(inp);
2140                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2141                                 events->sctp_data_io_event = 1;
2142
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2144                                 events->sctp_association_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2147                                 events->sctp_address_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2150                                 events->sctp_send_failure_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2153                                 events->sctp_peer_error_event = 1;
2154
2155                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2156                                 events->sctp_shutdown_event = 1;
2157
2158                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2159                                 events->sctp_partial_delivery_event = 1;
2160
2161                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2162                                 events->sctp_adaptation_layer_event = 1;
2163
2164                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2165                                 events->sctp_authentication_event = 1;
2166
2167                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2168                                 events->sctp_sender_dry_event = 1;
2169
2170                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2171                                 events->sctp_stream_reset_event = 1;
2172                         SCTP_INP_RUNLOCK(inp);
2173                         *optsize = sizeof(struct sctp_event_subscribe);
2174                         break;
2175                 }
2176         case SCTP_ADAPTATION_LAYER:
2177                 {
2178                         uint32_t *value;
2179
2180                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2181
2182                         SCTP_INP_RLOCK(inp);
2183                         *value = inp->sctp_ep.adaptation_layer_indicator;
2184                         SCTP_INP_RUNLOCK(inp);
2185                         *optsize = sizeof(uint32_t);
2186                         break;
2187                 }
2188         case SCTP_SET_INITIAL_DBG_SEQ:
2189                 {
2190                         uint32_t *value;
2191
2192                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2193                         SCTP_INP_RLOCK(inp);
2194                         *value = inp->sctp_ep.initial_sequence_debug;
2195                         SCTP_INP_RUNLOCK(inp);
2196                         *optsize = sizeof(uint32_t);
2197                         break;
2198                 }
2199         case SCTP_GET_LOCAL_ADDR_SIZE:
2200                 {
2201                         uint32_t *value;
2202
2203                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2204                         SCTP_INP_RLOCK(inp);
2205                         *value = sctp_count_max_addresses(inp);
2206                         SCTP_INP_RUNLOCK(inp);
2207                         *optsize = sizeof(uint32_t);
2208                         break;
2209                 }
2210         case SCTP_GET_REMOTE_ADDR_SIZE:
2211                 {
2212                         uint32_t *value;
2213                         size_t size;
2214                         struct sctp_nets *net;
2215
2216                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2217                         /* FIXME MT: change to sctp_assoc_value? */
2218                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2219
2220                         if (stcb) {
2221                                 size = 0;
2222                                 /* Count the sizes */
2223                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2224                                         switch (net->ro._l_addr.sa.sa_family) {
2225 #ifdef INET
2226                                         case AF_INET:
2227 #ifdef INET6
2228                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2229                                                         size += sizeof(struct sockaddr_in6);
2230                                                 } else {
2231                                                         size += sizeof(struct sockaddr_in);
2232                                                 }
2233 #else
2234                                                 size += sizeof(struct sockaddr_in);
2235 #endif
2236                                                 break;
2237 #endif
2238 #ifdef INET6
2239                                         case AF_INET6:
2240                                                 size += sizeof(struct sockaddr_in6);
2241                                                 break;
2242 #endif
2243                                         default:
2244                                                 break;
2245                                         }
2246                                 }
2247                                 SCTP_TCB_UNLOCK(stcb);
2248                                 *value = (uint32_t) size;
2249                                 *optsize = sizeof(uint32_t);
2250                         } else {
2251                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2252                                 error = ENOTCONN;
2253                         }
2254                         break;
2255                 }
2256         case SCTP_GET_PEER_ADDRESSES:
2257                 /*
2258                  * Get the address information, an array is passed in to
2259                  * fill up we pack it.
2260                  */
2261                 {
2262                         size_t cpsz, left;
2263                         struct sockaddr_storage *sas;
2264                         struct sctp_nets *net;
2265                         struct sctp_getaddresses *saddr;
2266
2267                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2268                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2269
2270                         if (stcb) {
2271                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2272                                 *optsize = sizeof(struct sctp_getaddresses);
2273                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2274
2275                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2276                                         switch (net->ro._l_addr.sa.sa_family) {
2277 #ifdef INET
2278                                         case AF_INET:
2279 #ifdef INET6
2280                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2281                                                         cpsz = sizeof(struct sockaddr_in6);
2282                                                 } else {
2283                                                         cpsz = sizeof(struct sockaddr_in);
2284                                                 }
2285 #else
2286                                                 cpsz = sizeof(struct sockaddr_in);
2287 #endif
2288                                                 break;
2289 #endif
2290 #ifdef INET6
2291                                         case AF_INET6:
2292                                                 cpsz = sizeof(struct sockaddr_in6);
2293                                                 break;
2294 #endif
2295                                         default:
2296                                                 cpsz = 0;
2297                                                 break;
2298                                         }
2299                                         if (cpsz == 0) {
2300                                                 break;
2301                                         }
2302                                         if (left < cpsz) {
2303                                                 /* not enough room. */
2304                                                 break;
2305                                         }
2306 #if defined(INET) && defined(INET6)
2307                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2308                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2309                                                 /* Must map the address */
2310                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2311                                                     (struct sockaddr_in6 *)sas);
2312                                         } else {
2313                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2314                                         }
2315 #else
2316                                         memcpy(sas, &net->ro._l_addr, cpsz);
2317 #endif
2318                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2319
2320                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2321                                         left -= cpsz;
2322                                         *optsize += cpsz;
2323                                 }
2324                                 SCTP_TCB_UNLOCK(stcb);
2325                         } else {
2326                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2327                                 error = ENOENT;
2328                         }
2329                         break;
2330                 }
2331         case SCTP_GET_LOCAL_ADDRESSES:
2332                 {
2333                         size_t limit, actual;
2334                         struct sockaddr_storage *sas;
2335                         struct sctp_getaddresses *saddr;
2336
2337                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2338                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2339
2340                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2341                         limit = *optsize - sizeof(sctp_assoc_t);
2342                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2343                         if (stcb) {
2344                                 SCTP_TCB_UNLOCK(stcb);
2345                         }
2346                         *optsize = sizeof(struct sockaddr_storage) + actual;
2347                         break;
2348                 }
2349         case SCTP_PEER_ADDR_PARAMS:
2350                 {
2351                         struct sctp_paddrparams *paddrp;
2352                         struct sctp_nets *net;
2353                         struct sockaddr *addr;
2354
2355 #if defined(INET) && defined(INET6)
2356                         struct sockaddr_in sin_store;
2357
2358 #endif
2359
2360                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2361                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2362
2363 #if defined(INET) && defined(INET6)
2364                         if (paddrp->spp_address.ss_family == AF_INET6) {
2365                                 struct sockaddr_in6 *sin6;
2366
2367                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2368                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2369                                         in6_sin6_2_sin(&sin_store, sin6);
2370                                         addr = (struct sockaddr *)&sin_store;
2371                                 } else {
2372                                         addr = (struct sockaddr *)&paddrp->spp_address;
2373                                 }
2374                         } else {
2375                                 addr = (struct sockaddr *)&paddrp->spp_address;
2376                         }
2377 #else
2378                         addr = (struct sockaddr *)&paddrp->spp_address;
2379 #endif
2380                         if (stcb != NULL) {
2381                                 net = sctp_findnet(stcb, addr);
2382                         } else {
2383                                 /*
2384                                  * We increment here since
2385                                  * sctp_findassociation_ep_addr() wil do a
2386                                  * decrement if it finds the stcb as long as
2387                                  * the locked tcb (last argument) is NOT a
2388                                  * TCB.. aka NULL.
2389                                  */
2390                                 net = NULL;
2391                                 SCTP_INP_INCR_REF(inp);
2392                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2393                                 if (stcb == NULL) {
2394                                         SCTP_INP_DECR_REF(inp);
2395                                 }
2396                         }
2397                         if ((stcb != NULL) && (net == NULL)) {
2398 #ifdef INET
2399                                 if (addr->sa_family == AF_INET) {
2400                                         struct sockaddr_in *sin;
2401
2402                                         sin = (struct sockaddr_in *)addr;
2403                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2404                                                 error = EINVAL;
2405                                                 SCTP_TCB_UNLOCK(stcb);
2406                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2407                                                 break;
2408                                         }
2409                                 } else
2410 #endif
2411 #ifdef INET6
2412                                 if (addr->sa_family == AF_INET6) {
2413                                         struct sockaddr_in6 *sin6;
2414
2415                                         sin6 = (struct sockaddr_in6 *)addr;
2416                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2417                                                 error = EINVAL;
2418                                                 SCTP_TCB_UNLOCK(stcb);
2419                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2420                                                 break;
2421                                         }
2422                                 } else
2423 #endif
2424                                 {
2425                                         error = EAFNOSUPPORT;
2426                                         SCTP_TCB_UNLOCK(stcb);
2427                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2428                                         break;
2429                                 }
2430                         }
2431                         if (stcb != NULL) {
2432                                 /* Applies to the specific association */
2433                                 paddrp->spp_flags = 0;
2434                                 if (net != NULL) {
2435                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2436                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2437                                         paddrp->spp_pathmtu = net->mtu;
2438                                         switch (net->ro._l_addr.sa.sa_family) {
2439 #ifdef INET
2440                                         case AF_INET:
2441                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2442                                                 break;
2443 #endif
2444 #ifdef INET6
2445                                         case AF_INET6:
2446                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2447                                                 break;
2448 #endif
2449                                         default:
2450                                                 break;
2451                                         }
2452                                         /* get flags for HB */
2453                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2454                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2455                                         } else {
2456                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2457                                         }
2458                                         /* get flags for PMTU */
2459                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2460                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2461                                         } else {
2462                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2463                                         }
2464                                         if (net->dscp & 0x01) {
2465                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2466                                                 paddrp->spp_flags |= SPP_DSCP;
2467                                         }
2468 #ifdef INET6
2469                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2470                                             (net->flowlabel & 0x80000000)) {
2471                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2472                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2473                                         }
2474 #endif
2475                                 } else {
2476                                         /*
2477                                          * No destination so return default
2478                                          * value
2479                                          */
2480                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2481                                         paddrp->spp_pathmtu = 0;
2482                                         if (stcb->asoc.default_dscp & 0x01) {
2483                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2484                                                 paddrp->spp_flags |= SPP_DSCP;
2485                                         }
2486 #ifdef INET6
2487                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2488                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2489                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2490                                         }
2491 #endif
2492                                         /* default settings should be these */
2493                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2494                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2495                                         } else {
2496                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2497                                         }
2498                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2499                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2500                                         } else {
2501                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2502                                         }
2503                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2504                                 }
2505                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2506                                 SCTP_TCB_UNLOCK(stcb);
2507                         } else {
2508                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2509                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2510                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2511                                         /* Use endpoint defaults */
2512                                         SCTP_INP_RLOCK(inp);
2513                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2514                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2515                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2516                                         /* get inp's default */
2517                                         if (inp->sctp_ep.default_dscp & 0x01) {
2518                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2519                                                 paddrp->spp_flags |= SPP_DSCP;
2520                                         }
2521 #ifdef INET6
2522                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2523                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2524                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2525                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2526                                         }
2527 #endif
2528                                         /* can't return this */
2529                                         paddrp->spp_pathmtu = 0;
2530
2531                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2532                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2533                                         } else {
2534                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2535                                         }
2536                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2537                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2538                                         } else {
2539                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2540                                         }
2541                                         SCTP_INP_RUNLOCK(inp);
2542                                 } else {
2543                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2544                                         error = EINVAL;
2545                                 }
2546                         }
2547                         if (error == 0) {
2548                                 *optsize = sizeof(struct sctp_paddrparams);
2549                         }
2550                         break;
2551                 }
2552         case SCTP_GET_PEER_ADDR_INFO:
2553                 {
2554                         struct sctp_paddrinfo *paddri;
2555                         struct sctp_nets *net;
2556                         struct sockaddr *addr;
2557
2558 #if defined(INET) && defined(INET6)
2559                         struct sockaddr_in sin_store;
2560
2561 #endif
2562
2563                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2564                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2565
2566 #if defined(INET) && defined(INET6)
2567                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2568                                 struct sockaddr_in6 *sin6;
2569
2570                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2571                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2572                                         in6_sin6_2_sin(&sin_store, sin6);
2573                                         addr = (struct sockaddr *)&sin_store;
2574                                 } else {
2575                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2576                                 }
2577                         } else {
2578                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2579                         }
2580 #else
2581                         addr = (struct sockaddr *)&paddri->spinfo_address;
2582 #endif
2583                         if (stcb != NULL) {
2584                                 net = sctp_findnet(stcb, addr);
2585                         } else {
2586                                 /*
2587                                  * We increment here since
2588                                  * sctp_findassociation_ep_addr() wil do a
2589                                  * decrement if it finds the stcb as long as
2590                                  * the locked tcb (last argument) is NOT a
2591                                  * TCB.. aka NULL.
2592                                  */
2593                                 net = NULL;
2594                                 SCTP_INP_INCR_REF(inp);
2595                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2596                                 if (stcb == NULL) {
2597                                         SCTP_INP_DECR_REF(inp);
2598                                 }
2599                         }
2600
2601                         if ((stcb != NULL) && (net != NULL)) {
2602                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2603                                         /* It's unconfirmed */
2604                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2605                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2606                                         /* It's active */
2607                                         paddri->spinfo_state = SCTP_ACTIVE;
2608                                 } else {
2609                                         /* It's inactive */
2610                                         paddri->spinfo_state = SCTP_INACTIVE;
2611                                 }
2612                                 paddri->spinfo_cwnd = net->cwnd;
2613                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2614                                 paddri->spinfo_rto = net->RTO;
2615                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2616                                 paddri->spinfo_mtu = net->mtu;
2617                                 switch (addr->sa_family) {
2618 #if defined(INET)
2619                                 case AF_INET:
2620                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2621                                         break;
2622 #endif
2623 #if defined(INET6)
2624                                 case AF_INET6:
2625                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2626                                         break;
2627 #endif
2628                                 default:
2629                                         break;
2630                                 }
2631                                 SCTP_TCB_UNLOCK(stcb);
2632                                 *optsize = sizeof(struct sctp_paddrinfo);
2633                         } else {
2634                                 if (stcb != NULL) {
2635                                         SCTP_TCB_UNLOCK(stcb);
2636                                 }
2637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2638                                 error = ENOENT;
2639                         }
2640                         break;
2641                 }
2642         case SCTP_PCB_STATUS:
2643                 {
2644                         struct sctp_pcbinfo *spcb;
2645
2646                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2647                         sctp_fill_pcbinfo(spcb);
2648                         *optsize = sizeof(struct sctp_pcbinfo);
2649                         break;
2650                 }
2651         case SCTP_STATUS:
2652                 {
2653                         struct sctp_nets *net;
2654                         struct sctp_status *sstat;
2655
2656                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2657                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2658
2659                         if (stcb == NULL) {
2660                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2661                                 error = EINVAL;
2662                                 break;
2663                         }
2664                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2665                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2666                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2667                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2668                         /*
2669                          * We can't include chunks that have been passed to
2670                          * the socket layer. Only things in queue.
2671                          */
2672                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2673                             stcb->asoc.cnt_on_all_streams);
2674
2675
2676                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2677                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2678                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2679                         memcpy(&sstat->sstat_primary.spinfo_address,
2680                             &stcb->asoc.primary_destination->ro._l_addr,
2681                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2682                         net = stcb->asoc.primary_destination;
2683                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2684                         /*
2685                          * Again the user can get info from sctp_constants.h
2686                          * for what the state of the network is.
2687                          */
2688                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2689                                 /* It's unconfirmed */
2690                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2691                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2692                                 /* It's active */
2693                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2694                         } else {
2695                                 /* It's inactive */
2696                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2697                         }
2698                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2699                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2700                         sstat->sstat_primary.spinfo_rto = net->RTO;
2701                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2702                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2703 #if defined(INET)
2704                         case AF_INET:
2705                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2706                                 break;
2707 #endif
2708 #if defined(INET6)
2709                         case AF_INET6:
2710                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2711                                 break;
2712 #endif
2713                         default:
2714                                 break;
2715                         }
2716                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2717                         SCTP_TCB_UNLOCK(stcb);
2718                         *optsize = sizeof(struct sctp_status);
2719                         break;
2720                 }
2721         case SCTP_RTOINFO:
2722                 {
2723                         struct sctp_rtoinfo *srto;
2724
2725                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2726                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2727
2728                         if (stcb) {
2729                                 srto->srto_initial = stcb->asoc.initial_rto;
2730                                 srto->srto_max = stcb->asoc.maxrto;
2731                                 srto->srto_min = stcb->asoc.minrto;
2732                                 SCTP_TCB_UNLOCK(stcb);
2733                         } else {
2734                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2735                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2736                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2737                                         SCTP_INP_RLOCK(inp);
2738                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2739                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2740                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2741                                         SCTP_INP_RUNLOCK(inp);
2742                                 } else {
2743                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2744                                         error = EINVAL;
2745                                 }
2746                         }
2747                         if (error == 0) {
2748                                 *optsize = sizeof(struct sctp_rtoinfo);
2749                         }
2750                         break;
2751                 }
2752         case SCTP_TIMEOUTS:
2753                 {
2754                         struct sctp_timeouts *stimo;
2755
2756                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2757                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2758
2759                         if (stcb) {
2760                                 stimo->stimo_init = stcb->asoc.timoinit;
2761                                 stimo->stimo_data = stcb->asoc.timodata;
2762                                 stimo->stimo_sack = stcb->asoc.timosack;
2763                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2764                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2765                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2766                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2767                                 SCTP_TCB_UNLOCK(stcb);
2768                                 *optsize = sizeof(struct sctp_timeouts);
2769                         } else {
2770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2771                                 error = EINVAL;
2772                         }
2773                         break;
2774                 }
2775         case SCTP_ASSOCINFO:
2776                 {
2777                         struct sctp_assocparams *sasoc;
2778
2779                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2780                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2781
2782                         if (stcb) {
2783                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2784                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2785                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2786                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2787                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2788                                 SCTP_TCB_UNLOCK(stcb);
2789                         } else {
2790                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2791                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2792                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2793                                         SCTP_INP_RLOCK(inp);
2794                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2795                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2796                                         sasoc->sasoc_number_peer_destinations = 0;
2797                                         sasoc->sasoc_peer_rwnd = 0;
2798                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2799                                         SCTP_INP_RUNLOCK(inp);
2800                                 } else {
2801                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2802                                         error = EINVAL;
2803                                 }
2804                         }
2805                         if (error == 0) {
2806                                 *optsize = sizeof(struct sctp_assocparams);
2807                         }
2808                         break;
2809                 }
2810         case SCTP_DEFAULT_SEND_PARAM:
2811                 {
2812                         struct sctp_sndrcvinfo *s_info;
2813
2814                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2815                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2816
2817                         if (stcb) {
2818                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2819                                 SCTP_TCB_UNLOCK(stcb);
2820                         } else {
2821                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2822                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2823                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2824                                         SCTP_INP_RLOCK(inp);
2825                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2826                                         SCTP_INP_RUNLOCK(inp);
2827                                 } else {
2828                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2829                                         error = EINVAL;
2830                                 }
2831                         }
2832                         if (error == 0) {
2833                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2834                         }
2835                         break;
2836                 }
2837         case SCTP_INITMSG:
2838                 {
2839                         struct sctp_initmsg *sinit;
2840
2841                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2842                         SCTP_INP_RLOCK(inp);
2843                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2844                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2845                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2846                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2847                         SCTP_INP_RUNLOCK(inp);
2848                         *optsize = sizeof(struct sctp_initmsg);
2849                         break;
2850                 }
2851         case SCTP_PRIMARY_ADDR:
2852                 /* we allow a "get" operation on this */
2853                 {
2854                         struct sctp_setprim *ssp;
2855
2856                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2857                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2858
2859                         if (stcb) {
2860                                 union sctp_sockstore *addr;
2861
2862                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2863                                 switch (addr->sa.sa_family) {
2864 #ifdef INET
2865                                 case AF_INET:
2866 #ifdef INET6
2867                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2868                                                 in6_sin_2_v4mapsin6(&addr->sin,
2869                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2870                                         } else {
2871                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2872                                         }
2873 #else
2874                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2875 #endif
2876                                         break;
2877 #endif
2878 #ifdef INET6
2879                                 case AF_INET6:
2880                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2881                                         break;
2882 #endif
2883                                 default:
2884                                         break;
2885                                 }
2886                                 SCTP_TCB_UNLOCK(stcb);
2887                                 *optsize = sizeof(struct sctp_setprim);
2888                         } else {
2889                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2890                                 error = EINVAL;
2891                         }
2892                         break;
2893                 }
2894         case SCTP_HMAC_IDENT:
2895                 {
2896                         struct sctp_hmacalgo *shmac;
2897                         sctp_hmaclist_t *hmaclist;
2898                         uint32_t size;
2899                         int i;
2900
2901                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2902
2903                         SCTP_INP_RLOCK(inp);
2904                         hmaclist = inp->sctp_ep.local_hmacs;
2905                         if (hmaclist == NULL) {
2906                                 /* no HMACs to return */
2907                                 *optsize = sizeof(*shmac);
2908                                 SCTP_INP_RUNLOCK(inp);
2909                                 break;
2910                         }
2911                         /* is there room for all of the hmac ids? */
2912                         size = sizeof(*shmac) + (hmaclist->num_algo *
2913                             sizeof(shmac->shmac_idents[0]));
2914                         if ((size_t)(*optsize) < size) {
2915                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2916                                 error = EINVAL;
2917                                 SCTP_INP_RUNLOCK(inp);
2918                                 break;
2919                         }
2920                         /* copy in the list */
2921                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2922                         for (i = 0; i < hmaclist->num_algo; i++) {
2923                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2924                         }
2925                         SCTP_INP_RUNLOCK(inp);
2926                         *optsize = size;
2927                         break;
2928                 }
2929         case SCTP_AUTH_ACTIVE_KEY:
2930                 {
2931                         struct sctp_authkeyid *scact;
2932
2933                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2934                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2935
2936                         if (stcb) {
2937                                 /* get the active key on the assoc */
2938                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2939                                 SCTP_TCB_UNLOCK(stcb);
2940                         } else {
2941                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2942                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2943                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2944                                         /* get the endpoint active key */
2945                                         SCTP_INP_RLOCK(inp);
2946                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2947                                         SCTP_INP_RUNLOCK(inp);
2948                                 } else {
2949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2950                                         error = EINVAL;
2951                                 }
2952                         }
2953                         if (error == 0) {
2954                                 *optsize = sizeof(struct sctp_authkeyid);
2955                         }
2956                         break;
2957                 }
2958         case SCTP_LOCAL_AUTH_CHUNKS:
2959                 {
2960                         struct sctp_authchunks *sac;
2961                         sctp_auth_chklist_t *chklist = NULL;
2962                         size_t size = 0;
2963
2964                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2965                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2966
2967                         if (stcb) {
2968                                 /* get off the assoc */
2969                                 chklist = stcb->asoc.local_auth_chunks;
2970                                 /* is there enough space? */
2971                                 size = sctp_auth_get_chklist_size(chklist);
2972                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2973                                         error = EINVAL;
2974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2975                                 } else {
2976                                         /* copy in the chunks */
2977                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2978                                         sac->gauth_number_of_chunks = (uint32_t) size;
2979                                         *optsize = sizeof(struct sctp_authchunks) + size;
2980                                 }
2981                                 SCTP_TCB_UNLOCK(stcb);
2982                         } else {
2983                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2984                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2985                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2986                                         /* get off the endpoint */
2987                                         SCTP_INP_RLOCK(inp);
2988                                         chklist = inp->sctp_ep.local_auth_chunks;
2989                                         /* is there enough space? */
2990                                         size = sctp_auth_get_chklist_size(chklist);
2991                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2992                                                 error = EINVAL;
2993                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2994                                         } else {
2995                                                 /* copy in the chunks */
2996                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2997                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2998                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2999                                         }
3000                                         SCTP_INP_RUNLOCK(inp);
3001                                 } else {
3002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3003                                         error = EINVAL;
3004                                 }
3005                         }
3006                         break;
3007                 }
3008         case SCTP_PEER_AUTH_CHUNKS:
3009                 {
3010                         struct sctp_authchunks *sac;
3011                         sctp_auth_chklist_t *chklist = NULL;
3012                         size_t size = 0;
3013
3014                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3015                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3016
3017                         if (stcb) {
3018                                 /* get off the assoc */
3019                                 chklist = stcb->asoc.peer_auth_chunks;
3020                                 /* is there enough space? */
3021                                 size = sctp_auth_get_chklist_size(chklist);
3022                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3023                                         error = EINVAL;
3024                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3025                                 } else {
3026                                         /* copy in the chunks */
3027                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3028                                         sac->gauth_number_of_chunks = (uint32_t) size;
3029                                         *optsize = sizeof(struct sctp_authchunks) + size;
3030                                 }
3031                                 SCTP_TCB_UNLOCK(stcb);
3032                         } else {
3033                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3034                                 error = ENOENT;
3035                         }
3036                         break;
3037                 }
3038         case SCTP_EVENT:
3039                 {
3040                         struct sctp_event *event;
3041                         uint32_t event_type;
3042
3043                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3044                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3045
3046                         switch (event->se_type) {
3047                         case SCTP_ASSOC_CHANGE:
3048                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3049                                 break;
3050                         case SCTP_PEER_ADDR_CHANGE:
3051                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3052                                 break;
3053                         case SCTP_REMOTE_ERROR:
3054                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3055                                 break;
3056                         case SCTP_SEND_FAILED:
3057                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3058                                 break;
3059                         case SCTP_SHUTDOWN_EVENT:
3060                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3061                                 break;
3062                         case SCTP_ADAPTATION_INDICATION:
3063                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3064                                 break;
3065                         case SCTP_PARTIAL_DELIVERY_EVENT:
3066                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3067                                 break;
3068                         case SCTP_AUTHENTICATION_EVENT:
3069                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3070                                 break;
3071                         case SCTP_STREAM_RESET_EVENT:
3072                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3073                                 break;
3074                         case SCTP_SENDER_DRY_EVENT:
3075                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3076                                 break;
3077                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3078                                 event_type = 0;
3079                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3080                                 error = ENOTSUP;
3081                                 break;
3082                         case SCTP_ASSOC_RESET_EVENT:
3083                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3084                                 break;
3085                         case SCTP_STREAM_CHANGE_EVENT:
3086                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3087                                 break;
3088                         case SCTP_SEND_FAILED_EVENT:
3089                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3090                                 break;
3091                         default:
3092                                 event_type = 0;
3093                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3094                                 error = EINVAL;
3095                                 break;
3096                         }
3097                         if (event_type > 0) {
3098                                 if (stcb) {
3099                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3100                                         SCTP_TCB_UNLOCK(stcb);
3101                                 } else {
3102                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3103                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3104                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3105                                                 SCTP_INP_RLOCK(inp);
3106                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3107                                                 SCTP_INP_RUNLOCK(inp);
3108                                         } else {
3109                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3110                                                 error = EINVAL;
3111                                         }
3112                                 }
3113                         }
3114                         if (error == 0) {
3115                                 *optsize = sizeof(struct sctp_event);
3116                         }
3117                         break;
3118                 }
3119         case SCTP_RECVRCVINFO:
3120                 {
3121                         int onoff;
3122
3123                         if (*optsize < sizeof(int)) {
3124                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3125                                 error = EINVAL;
3126                         } else {
3127                                 SCTP_INP_RLOCK(inp);
3128                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3129                                 SCTP_INP_RUNLOCK(inp);
3130                         }
3131                         if (error == 0) {
3132                                 /* return the option value */
3133                                 *(int *)optval = onoff;
3134                                 *optsize = sizeof(int);
3135                         }
3136                         break;
3137                 }
3138         case SCTP_RECVNXTINFO:
3139                 {
3140                         int onoff;
3141
3142                         if (*optsize < sizeof(int)) {
3143                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3144                                 error = EINVAL;
3145                         } else {
3146                                 SCTP_INP_RLOCK(inp);
3147                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3148                                 SCTP_INP_RUNLOCK(inp);
3149                         }
3150                         if (error == 0) {
3151                                 /* return the option value */
3152                                 *(int *)optval = onoff;
3153                                 *optsize = sizeof(int);
3154                         }
3155                         break;
3156                 }
3157         case SCTP_DEFAULT_SNDINFO:
3158                 {
3159                         struct sctp_sndinfo *info;
3160
3161                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3162                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3163
3164                         if (stcb) {
3165                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3166                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3167                                 info->snd_flags &= 0xfff0;
3168                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3169                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3170                                 SCTP_TCB_UNLOCK(stcb);
3171                         } else {
3172                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3173                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3174                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3175                                         SCTP_INP_RLOCK(inp);
3176                                         info->snd_sid = inp->def_send.sinfo_stream;
3177                                         info->snd_flags = inp->def_send.sinfo_flags;
3178                                         info->snd_flags &= 0xfff0;
3179                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3180                                         info->snd_context = inp->def_send.sinfo_context;
3181                                         SCTP_INP_RUNLOCK(inp);
3182                                 } else {
3183                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3184                                         error = EINVAL;
3185                                 }
3186                         }
3187                         if (error == 0) {
3188                                 *optsize = sizeof(struct sctp_sndinfo);
3189                         }
3190                         break;
3191                 }
3192         case SCTP_DEFAULT_PRINFO:
3193                 {
3194                         struct sctp_default_prinfo *info;
3195
3196                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3197                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3198
3199                         if (stcb) {
3200                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3201                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3202                                 SCTP_TCB_UNLOCK(stcb);
3203                         } else {
3204                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3205                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3206                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3207                                         SCTP_INP_RLOCK(inp);
3208                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3209                                         info->pr_value = inp->def_send.sinfo_timetolive;
3210                                         SCTP_INP_RUNLOCK(inp);
3211                                 } else {
3212                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3213                                         error = EINVAL;
3214                                 }
3215                         }
3216                         if (error == 0) {
3217                                 *optsize = sizeof(struct sctp_default_prinfo);
3218                         }
3219                         break;
3220                 }
3221         case SCTP_PEER_ADDR_THLDS:
3222                 {
3223                         struct sctp_paddrthlds *thlds;
3224                         struct sctp_nets *net;
3225                         struct sockaddr *addr;
3226
3227 #if defined(INET) && defined(INET6)
3228                         struct sockaddr_in sin_store;
3229
3230 #endif
3231
3232                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3233                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3234
3235 #if defined(INET) && defined(INET6)
3236                         if (thlds->spt_address.ss_family == AF_INET6) {
3237                                 struct sockaddr_in6 *sin6;
3238
3239                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3240                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3241                                         in6_sin6_2_sin(&sin_store, sin6);
3242                                         addr = (struct sockaddr *)&sin_store;
3243                                 } else {
3244                                         addr = (struct sockaddr *)&thlds->spt_address;
3245                                 }
3246                         } else {
3247                                 addr = (struct sockaddr *)&thlds->spt_address;
3248                         }
3249 #else
3250                         addr = (struct sockaddr *)&thlds->spt_address;
3251 #endif
3252                         if (stcb != NULL) {
3253                                 net = sctp_findnet(stcb, addr);
3254                         } else {
3255                                 /*
3256                                  * We increment here since
3257                                  * sctp_findassociation_ep_addr() wil do a
3258                                  * decrement if it finds the stcb as long as
3259                                  * the locked tcb (last argument) is NOT a
3260                                  * TCB.. aka NULL.
3261                                  */
3262                                 net = NULL;
3263                                 SCTP_INP_INCR_REF(inp);
3264                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3265                                 if (stcb == NULL) {
3266                                         SCTP_INP_DECR_REF(inp);
3267                                 }
3268                         }
3269                         if ((stcb != NULL) && (net == NULL)) {
3270 #ifdef INET
3271                                 if (addr->sa_family == AF_INET) {
3272                                         struct sockaddr_in *sin;
3273
3274                                         sin = (struct sockaddr_in *)addr;
3275                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3276                                                 error = EINVAL;
3277                                                 SCTP_TCB_UNLOCK(stcb);
3278                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3279                                                 break;
3280                                         }
3281                                 } else
3282 #endif
3283 #ifdef INET6
3284                                 if (addr->sa_family == AF_INET6) {
3285                                         struct sockaddr_in6 *sin6;
3286
3287                                         sin6 = (struct sockaddr_in6 *)addr;
3288                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3289                                                 error = EINVAL;
3290                                                 SCTP_TCB_UNLOCK(stcb);
3291                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3292                                                 break;
3293                                         }
3294                                 } else
3295 #endif
3296                                 {
3297                                         error = EAFNOSUPPORT;
3298                                         SCTP_TCB_UNLOCK(stcb);
3299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3300                                         break;
3301                                 }
3302                         }
3303                         if (stcb != NULL) {
3304                                 if (net != NULL) {
3305                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3306                                         thlds->spt_pathpfthld = net->pf_threshold;
3307                                         thlds->spt_pathcpthld = 0xffff;
3308                                 } else {
3309                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3310                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3311                                         thlds->spt_pathcpthld = 0xffff;
3312                                 }
3313                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3314                                 SCTP_TCB_UNLOCK(stcb);
3315                         } else {
3316                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3317                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3318                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3319                                         /* Use endpoint defaults */
3320                                         SCTP_INP_RLOCK(inp);
3321                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3322                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3323                                         thlds->spt_pathcpthld = 0xffff;
3324                                         SCTP_INP_RUNLOCK(inp);
3325                                 } else {
3326                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3327                                         error = EINVAL;
3328                                 }
3329                         }
3330                         if (error == 0) {
3331                                 *optsize = sizeof(struct sctp_paddrthlds);
3332                         }
3333                         break;
3334                 }
3335         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3336                 {
3337                         struct sctp_udpencaps *encaps;
3338                         struct sctp_nets *net;
3339                         struct sockaddr *addr;
3340
3341 #if defined(INET) && defined(INET6)
3342                         struct sockaddr_in sin_store;
3343
3344 #endif
3345
3346                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3347                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3348
3349 #if defined(INET) && defined(INET6)
3350                         if (encaps->sue_address.ss_family == AF_INET6) {
3351                                 struct sockaddr_in6 *sin6;
3352
3353                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3354                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3355                                         in6_sin6_2_sin(&sin_store, sin6);
3356                                         addr = (struct sockaddr *)&sin_store;
3357                                 } else {
3358                                         addr = (struct sockaddr *)&encaps->sue_address;
3359                                 }
3360                         } else {
3361                                 addr = (struct sockaddr *)&encaps->sue_address;
3362                         }
3363 #else
3364                         addr = (struct sockaddr *)&encaps->sue_address;
3365 #endif
3366                         if (stcb) {
3367                                 net = sctp_findnet(stcb, addr);
3368                         } else {
3369                                 /*
3370                                  * We increment here since
3371                                  * sctp_findassociation_ep_addr() wil do a
3372                                  * decrement if it finds the stcb as long as
3373                                  * the locked tcb (last argument) is NOT a
3374                                  * TCB.. aka NULL.
3375                                  */
3376                                 net = NULL;
3377                                 SCTP_INP_INCR_REF(inp);
3378                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3379                                 if (stcb == NULL) {
3380                                         SCTP_INP_DECR_REF(inp);
3381                                 }
3382                         }
3383                         if ((stcb != NULL) && (net == NULL)) {
3384 #ifdef INET
3385                                 if (addr->sa_family == AF_INET) {
3386                                         struct sockaddr_in *sin;
3387
3388                                         sin = (struct sockaddr_in *)addr;
3389                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
3398                                 if (addr->sa_family == AF_INET6) {
3399                                         struct sockaddr_in6 *sin6;
3400
3401                                         sin6 = (struct sockaddr_in6 *)addr;
3402                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3403                                                 error = EINVAL;
3404                                                 SCTP_TCB_UNLOCK(stcb);
3405                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3406                                                 break;
3407                                         }
3408                                 } else
3409 #endif
3410                                 {
3411                                         error = EAFNOSUPPORT;
3412                                         SCTP_TCB_UNLOCK(stcb);
3413                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3414                                         break;
3415                                 }
3416                         }
3417                         if (stcb != NULL) {
3418                                 if (net) {
3419                                         encaps->sue_port = net->port;
3420                                 } else {
3421                                         encaps->sue_port = stcb->asoc.port;
3422                                 }
3423                                 SCTP_TCB_UNLOCK(stcb);
3424                         } else {
3425                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3426                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3427                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3428                                         SCTP_INP_RLOCK(inp);
3429                                         encaps->sue_port = inp->sctp_ep.port;
3430                                         SCTP_INP_RUNLOCK(inp);
3431                                 } else {
3432                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3433                                         error = EINVAL;
3434                                 }
3435                         }
3436                         if (error == 0) {
3437                                 *optsize = sizeof(struct sctp_udpencaps);
3438                         }
3439                         break;
3440                 }
3441         case SCTP_ECN_SUPPORTED:
3442                 {
3443                         struct sctp_assoc_value *av;
3444
3445                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3446                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3447
3448                         if (stcb) {
3449                                 av->assoc_value = stcb->asoc.ecn_supported;
3450                                 SCTP_TCB_UNLOCK(stcb);
3451                         } else {
3452                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3453                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3454                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3455                                         SCTP_INP_RLOCK(inp);
3456                                         av->assoc_value = inp->ecn_supported;
3457                                         SCTP_INP_RUNLOCK(inp);
3458                                 } else {
3459                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3460                                         error = EINVAL;
3461                                 }
3462                         }
3463                         if (error == 0) {
3464                                 *optsize = sizeof(struct sctp_assoc_value);
3465                         }
3466                         break;
3467                 }
3468         case SCTP_PR_SUPPORTED:
3469                 {
3470                         struct sctp_assoc_value *av;
3471
3472                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3473                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3474
3475                         if (stcb) {
3476                                 av->assoc_value = stcb->asoc.prsctp_supported;
3477                                 SCTP_TCB_UNLOCK(stcb);
3478                         } else {
3479                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3480                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3481                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3482                                         SCTP_INP_RLOCK(inp);
3483                                         av->assoc_value = inp->prsctp_supported;
3484                                         SCTP_INP_RUNLOCK(inp);
3485                                 } else {
3486                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3487                                         error = EINVAL;
3488                                 }
3489                         }
3490                         if (error == 0) {
3491                                 *optsize = sizeof(struct sctp_assoc_value);
3492                         }
3493                         break;
3494                 }
3495         case SCTP_AUTH_SUPPORTED:
3496                 {
3497                         struct sctp_assoc_value *av;
3498
3499                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3500                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3501
3502                         if (stcb) {
3503                                 av->assoc_value = stcb->asoc.auth_supported;
3504                                 SCTP_TCB_UNLOCK(stcb);
3505                         } else {
3506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3508                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3509                                         SCTP_INP_RLOCK(inp);
3510                                         av->assoc_value = inp->auth_supported;
3511                                         SCTP_INP_RUNLOCK(inp);
3512                                 } else {
3513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3514                                         error = EINVAL;
3515                                 }
3516                         }
3517                         if (error == 0) {
3518                                 *optsize = sizeof(struct sctp_assoc_value);
3519                         }
3520                         break;
3521                 }
3522         case SCTP_ASCONF_SUPPORTED:
3523                 {
3524                         struct sctp_assoc_value *av;
3525
3526                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3527                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3528
3529                         if (stcb) {
3530                                 av->assoc_value = stcb->asoc.asconf_supported;
3531                                 SCTP_TCB_UNLOCK(stcb);
3532                         } else {
3533                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3534                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3535                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3536                                         SCTP_INP_RLOCK(inp);
3537                                         av->assoc_value = inp->asconf_supported;
3538                                         SCTP_INP_RUNLOCK(inp);
3539                                 } else {
3540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3541                                         error = EINVAL;
3542                                 }
3543                         }
3544                         if (error == 0) {
3545                                 *optsize = sizeof(struct sctp_assoc_value);
3546                         }
3547                         break;
3548                 }
3549         case SCTP_RECONFIG_SUPPORTED:
3550                 {
3551                         struct sctp_assoc_value *av;
3552
3553                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3554                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3555
3556                         if (stcb) {
3557                                 av->assoc_value = stcb->asoc.reconfig_supported;
3558                                 SCTP_TCB_UNLOCK(stcb);
3559                         } else {
3560                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3561                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3562                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3563                                         SCTP_INP_RLOCK(inp);
3564                                         av->assoc_value = inp->reconfig_supported;
3565                                         SCTP_INP_RUNLOCK(inp);
3566                                 } else {
3567                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3568                                         error = EINVAL;
3569                                 }
3570                         }
3571                         if (error == 0) {
3572                                 *optsize = sizeof(struct sctp_assoc_value);
3573                         }
3574                         break;
3575                 }
3576         case SCTP_NRSACK_SUPPORTED:
3577                 {
3578                         struct sctp_assoc_value *av;
3579
3580                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3581                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3582
3583                         if (stcb) {
3584                                 av->assoc_value = stcb->asoc.nrsack_supported;
3585                                 SCTP_TCB_UNLOCK(stcb);
3586                         } else {
3587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3590                                         SCTP_INP_RLOCK(inp);
3591                                         av->assoc_value = inp->nrsack_supported;
3592                                         SCTP_INP_RUNLOCK(inp);
3593                                 } else {
3594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3595                                         error = EINVAL;
3596                                 }
3597                         }
3598                         if (error == 0) {
3599                                 *optsize = sizeof(struct sctp_assoc_value);
3600                         }
3601                         break;
3602                 }
3603         case SCTP_PKTDROP_SUPPORTED:
3604                 {
3605                         struct sctp_assoc_value *av;
3606
3607                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3608                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3609
3610                         if (stcb) {
3611                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3612                                 SCTP_TCB_UNLOCK(stcb);
3613                         } else {
3614                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3615                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3616                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3617                                         SCTP_INP_RLOCK(inp);
3618                                         av->assoc_value = inp->pktdrop_supported;
3619                                         SCTP_INP_RUNLOCK(inp);
3620                                 } else {
3621                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3622                                         error = EINVAL;
3623                                 }
3624                         }
3625                         if (error == 0) {
3626                                 *optsize = sizeof(struct sctp_assoc_value);
3627                         }
3628                         break;
3629                 }
3630         case SCTP_ENABLE_STREAM_RESET:
3631                 {
3632                         struct sctp_assoc_value *av;
3633
3634                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3635                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3636
3637                         if (stcb) {
3638                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3639                                 SCTP_TCB_UNLOCK(stcb);
3640                         } else {
3641                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3642                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3643                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3644                                         SCTP_INP_RLOCK(inp);
3645                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3646                                         SCTP_INP_RUNLOCK(inp);
3647                                 } else {
3648                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3649                                         error = EINVAL;
3650                                 }
3651                         }
3652                         if (error == 0) {
3653                                 *optsize = sizeof(struct sctp_assoc_value);
3654                         }
3655                         break;
3656                 }
3657         case SCTP_PR_STREAM_STATUS:
3658                 {
3659                         struct sctp_prstatus *sprstat;
3660                         uint16_t sid;
3661                         uint16_t policy;
3662
3663                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3664                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3665
3666                         sid = sprstat->sprstat_sid;
3667                         policy = sprstat->sprstat_policy;
3668 #if defined(SCTP_DETAILED_STR_STATS)
3669                         if ((stcb != NULL) &&
3670                             (sid < stcb->asoc.streamoutcnt) &&
3671                             (policy != SCTP_PR_SCTP_NONE) &&
3672                             ((policy <= SCTP_PR_SCTP_MAX) ||
3673                             (policy == SCTP_PR_SCTP_ALL))) {
3674                                 if (policy == SCTP_PR_SCTP_ALL) {
3675                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3676                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3677                                 } else {
3678                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3679                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3680                                 }
3681 #else
3682                         if ((stcb != NULL) &&
3683                             (sid < stcb->asoc.streamoutcnt) &&
3684                             (policy == SCTP_PR_SCTP_ALL)) {
3685                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3686                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3687 #endif
3688                                 SCTP_TCB_UNLOCK(stcb);
3689                                 *optsize = sizeof(struct sctp_prstatus);
3690                         } else {
3691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3692                                 error = EINVAL;
3693                         }
3694                         break;
3695                 }
3696         case SCTP_PR_ASSOC_STATUS:
3697                 {
3698                         struct sctp_prstatus *sprstat;
3699                         uint16_t policy;
3700
3701                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3702                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3703
3704                         policy = sprstat->sprstat_policy;
3705                         if ((stcb != NULL) &&
3706                             (policy != SCTP_PR_SCTP_NONE) &&
3707                             ((policy <= SCTP_PR_SCTP_MAX) ||
3708                             (policy == SCTP_PR_SCTP_ALL))) {
3709                                 if (policy == SCTP_PR_SCTP_ALL) {
3710                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3711                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3712                                 } else {
3713                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3714                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3715                                 }
3716                                 SCTP_TCB_UNLOCK(stcb);
3717                                 *optsize = sizeof(struct sctp_prstatus);
3718                         } else {
3719                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3720                                 error = EINVAL;
3721                         }
3722                         break;
3723                 }
3724         case SCTP_MAX_CWND:
3725                 {
3726                         struct sctp_assoc_value *av;
3727
3728                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3729                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3730
3731                         if (stcb) {
3732                                 av->assoc_value = stcb->asoc.max_cwnd;
3733                                 SCTP_TCB_UNLOCK(stcb);
3734                         } else {
3735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3737                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3738                                         SCTP_INP_RLOCK(inp);
3739                                         av->assoc_value = inp->max_cwnd;
3740                                         SCTP_INP_RUNLOCK(inp);
3741                                 } else {
3742                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3743                                         error = EINVAL;
3744                                 }
3745                         }
3746                         if (error == 0) {
3747                                 *optsize = sizeof(struct sctp_assoc_value);
3748                         }
3749                         break;
3750                 }
3751         default:
3752                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3753                 error = ENOPROTOOPT;
3754                 break;
3755         }                       /* end switch (sopt->sopt_name) */
3756         if (error) {
3757                 *optsize = 0;
3758         }
3759         return (error);
3760 }
3761
3762 static int
3763 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3764     void *p)
3765 {
3766         int error, set_opt;
3767         uint32_t *mopt;
3768         struct sctp_tcb *stcb = NULL;
3769         struct sctp_inpcb *inp = NULL;
3770         uint32_t vrf_id;
3771
3772         if (optval == NULL) {
3773                 SCTP_PRINTF("optval is NULL\n");
3774                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3775                 return (EINVAL);
3776         }
3777         inp = (struct sctp_inpcb *)so->so_pcb;
3778         if (inp == NULL) {
3779                 SCTP_PRINTF("inp is NULL?\n");
3780                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3781                 return (EINVAL);
3782         }
3783         vrf_id = inp->def_vrf_id;
3784
3785         error = 0;
3786         switch (optname) {
3787         case SCTP_NODELAY:
3788         case SCTP_AUTOCLOSE:
3789         case SCTP_AUTO_ASCONF:
3790         case SCTP_EXPLICIT_EOR:
3791         case SCTP_DISABLE_FRAGMENTS:
3792         case SCTP_USE_EXT_RCVINFO:
3793         case SCTP_I_WANT_MAPPED_V4_ADDR:
3794                 /* copy in the option value */
3795                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3796                 set_opt = 0;
3797                 if (error)
3798                         break;
3799                 switch (optname) {
3800                 case SCTP_DISABLE_FRAGMENTS:
3801                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3802                         break;
3803                 case SCTP_AUTO_ASCONF:
3804                         /*
3805                          * NOTE: we don't really support this flag
3806                          */
3807                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3808                                 /* only valid for bound all sockets */
3809                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3810                                     (*mopt != 0)) {
3811                                         /* forbidden by admin */
3812                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3813                                         return (EPERM);
3814                                 }
3815                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3816                         } else {
3817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3818                                 return (EINVAL);
3819                         }
3820                         break;
3821                 case SCTP_EXPLICIT_EOR:
3822                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3823                         break;
3824                 case SCTP_USE_EXT_RCVINFO:
3825                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3826                         break;
3827                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3828                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3829                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3830                         } else {
3831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3832                                 return (EINVAL);
3833                         }
3834                         break;
3835                 case SCTP_NODELAY:
3836                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3837                         break;
3838                 case SCTP_AUTOCLOSE:
3839                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3840                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3841                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3842                                 return (EINVAL);
3843                         }
3844                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3845                         /*
3846                          * The value is in ticks. Note this does not effect
3847                          * old associations, only new ones.
3848                          */
3849                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3850                         break;
3851                 }
3852                 SCTP_INP_WLOCK(inp);
3853                 if (*mopt != 0) {
3854                         sctp_feature_on(inp, set_opt);
3855                 } else {
3856                         sctp_feature_off(inp, set_opt);
3857                 }
3858                 SCTP_INP_WUNLOCK(inp);
3859                 break;
3860         case SCTP_REUSE_PORT:
3861                 {
3862                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3863                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3864                                 /* Can't set it after we are bound */
3865                                 error = EINVAL;
3866                                 break;
3867                         }
3868                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3869                                 /* Can't do this for a 1-m socket */
3870                                 error = EINVAL;
3871                                 break;
3872                         }
3873                         if (optval)
3874                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3875                         else
3876                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3877                         break;
3878                 }
3879         case SCTP_PARTIAL_DELIVERY_POINT:
3880                 {
3881                         uint32_t *value;
3882
3883                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3884                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3886                                 error = EINVAL;
3887                                 break;
3888                         }
3889                         inp->partial_delivery_point = *value;
3890                         break;
3891                 }
3892         case SCTP_FRAGMENT_INTERLEAVE:
3893                 /* not yet until we re-write sctp_recvmsg() */
3894                 {
3895                         uint32_t *level;
3896
3897                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3898                         if (*level == SCTP_FRAG_LEVEL_2) {
3899                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3900                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3901                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3902                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3903                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3904                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3905                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3906                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3907
3908                         } else {
3909                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3910                                 error = EINVAL;
3911                         }
3912                         break;
3913                 }
3914         case SCTP_INTERLEAVING_SUPPORTED:
3915                 {
3916                         struct sctp_assoc_value *av;
3917
3918                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3919                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3920
3921                         if (stcb) {
3922                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3923                                 error = EINVAL;
3924                                 SCTP_TCB_UNLOCK(stcb);
3925                         } else {
3926                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3927                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3928                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3929                                         SCTP_INP_WLOCK(inp);
3930                                         if (av->assoc_value == 0) {
3931                                                 inp->idata_supported = 0;
3932                                         } else {
3933                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3934                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3935                                                         inp->idata_supported = 1;
3936                                                 } else {
3937                                                         /*
3938                                                          * Must have Frag
3939                                                          * interleave and
3940                                                          * stream interleave
3941                                                          * on
3942                                                          */
3943                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3944                                                         error = EINVAL;
3945                                                 }
3946                                         }
3947                                         SCTP_INP_WUNLOCK(inp);
3948                                 } else {
3949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3950                                         error = EINVAL;
3951                                 }
3952                         }
3953                         break;
3954                 }
3955         case SCTP_CMT_ON_OFF:
3956                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3957                         struct sctp_assoc_value *av;
3958
3959                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3960                         if (av->assoc_value > SCTP_CMT_MAX) {
3961                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3962                                 error = EINVAL;
3963                                 break;
3964                         }
3965                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3966                         if (stcb) {
3967                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3968                                 SCTP_TCB_UNLOCK(stcb);
3969                         } else {
3970                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3971                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3972                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3973                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3974                                         SCTP_INP_WLOCK(inp);
3975                                         inp->sctp_cmt_on_off = av->assoc_value;
3976                                         SCTP_INP_WUNLOCK(inp);
3977                                 }
3978                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3979                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3980                                         SCTP_INP_RLOCK(inp);
3981                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3982                                                 SCTP_TCB_LOCK(stcb);
3983                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3984                                                 SCTP_TCB_UNLOCK(stcb);
3985                                         }
3986                                         SCTP_INP_RUNLOCK(inp);
3987                                 }
3988                         }
3989                 } else {
3990                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3991                         error = ENOPROTOOPT;
3992                 }
3993                 break;
3994         case SCTP_PLUGGABLE_CC:
3995                 {
3996                         struct sctp_assoc_value *av;
3997                         struct sctp_nets *net;
3998
3999                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4000                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
4001                             (av->assoc_value != SCTP_CC_HSTCP) &&
4002                             (av->assoc_value != SCTP_CC_HTCP) &&
4003                             (av->assoc_value != SCTP_CC_RTCC)) {
4004                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4005                                 error = EINVAL;
4006                                 break;
4007                         }
4008                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4009                         if (stcb) {
4010                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4011                                 stcb->asoc.congestion_control_module = av->assoc_value;
4012                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4013                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4014                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4015                                         }
4016                                 }
4017                                 SCTP_TCB_UNLOCK(stcb);
4018                         } else {
4019                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4020                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4021                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4022                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4023                                         SCTP_INP_WLOCK(inp);
4024                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4025                                         SCTP_INP_WUNLOCK(inp);
4026                                 }
4027                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4028                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4029                                         SCTP_INP_RLOCK(inp);
4030                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4031                                                 SCTP_TCB_LOCK(stcb);
4032                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4033                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4034                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4035                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4036                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4037                                                         }
4038                                                 }
4039                                                 SCTP_TCB_UNLOCK(stcb);
4040                                         }
4041                                         SCTP_INP_RUNLOCK(inp);
4042                                 }
4043                         }
4044                         break;
4045                 }
4046         case SCTP_CC_OPTION:
4047                 {
4048                         struct sctp_cc_option *cc_opt;
4049
4050                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4051                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4052                         if (stcb == NULL) {
4053                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4054                                         SCTP_INP_RLOCK(inp);
4055                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4056                                                 SCTP_TCB_LOCK(stcb);
4057                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4058                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4059                                                 }
4060                                                 SCTP_TCB_UNLOCK(stcb);
4061                                         }
4062                                         SCTP_INP_RUNLOCK(inp);
4063                                 } else {
4064                                         error = EINVAL;
4065                                 }
4066                         } else {
4067                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4068                                         error = ENOTSUP;
4069                                 } else {
4070                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4071                                             cc_opt);
4072                                 }
4073                                 SCTP_TCB_UNLOCK(stcb);
4074                         }
4075                         break;
4076                 }
4077         case SCTP_PLUGGABLE_SS:
4078                 {
4079                         struct sctp_assoc_value *av;
4080
4081                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4082                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4083                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4084                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4085                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4086                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4087                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4088                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4089                                 error = EINVAL;
4090                                 break;
4091                         }
4092                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4093                         if (stcb) {
4094                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4095                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4096                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4097                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4098                                 SCTP_TCB_UNLOCK(stcb);
4099                         } else {
4100                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4101                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4102                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4103                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4104                                         SCTP_INP_WLOCK(inp);
4105                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4106                                         SCTP_INP_WUNLOCK(inp);
4107                                 }
4108                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4109                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4110                                         SCTP_INP_RLOCK(inp);
4111                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4112                                                 SCTP_TCB_LOCK(stcb);
4113                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4114                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4115                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4116                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4117                                                 SCTP_TCB_UNLOCK(stcb);
4118                                         }
4119                                         SCTP_INP_RUNLOCK(inp);
4120                                 }
4121                         }
4122                         break;
4123                 }
4124         case SCTP_SS_VALUE:
4125                 {
4126                         struct sctp_stream_value *av;
4127
4128                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4129                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4130                         if (stcb) {
4131                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4132                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4133                                     av->stream_value) < 0)) {
4134                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4135                                         error = EINVAL;
4136                                 }
4137                                 SCTP_TCB_UNLOCK(stcb);
4138                         } else {
4139                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4140                                         SCTP_INP_RLOCK(inp);
4141                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4142                                                 SCTP_TCB_LOCK(stcb);
4143                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4144                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4145                                                             &stcb->asoc,
4146                                                             &stcb->asoc.strmout[av->stream_id],
4147                                                             av->stream_value);
4148                                                 }
4149                                                 SCTP_TCB_UNLOCK(stcb);
4150                                         }
4151                                         SCTP_INP_RUNLOCK(inp);
4152                                 } else {
4153                                         /*
4154                                          * Can't set stream value without
4155                                          * association
4156                                          */
4157                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4158                                         error = EINVAL;
4159                                 }
4160                         }
4161                         break;
4162                 }
4163         case SCTP_CLR_STAT_LOG:
4164                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4165                 error = EOPNOTSUPP;
4166                 break;
4167         case SCTP_CONTEXT:
4168                 {
4169                         struct sctp_assoc_value *av;
4170
4171                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4172                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4173
4174                         if (stcb) {
4175                                 stcb->asoc.context = av->assoc_value;
4176                                 SCTP_TCB_UNLOCK(stcb);
4177                         } else {
4178                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4179                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4180                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4181                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4182                                         SCTP_INP_WLOCK(inp);
4183                                         inp->sctp_context = av->assoc_value;
4184                                         SCTP_INP_WUNLOCK(inp);
4185                                 }
4186                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4187                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4188                                         SCTP_INP_RLOCK(inp);
4189                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4190                                                 SCTP_TCB_LOCK(stcb);
4191                                                 stcb->asoc.context = av->assoc_value;
4192                                                 SCTP_TCB_UNLOCK(stcb);
4193                                         }
4194                                         SCTP_INP_RUNLOCK(inp);
4195                                 }
4196                         }
4197                         break;
4198                 }
4199         case SCTP_VRF_ID:
4200                 {
4201                         uint32_t *default_vrfid;
4202
4203                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4204                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4205                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4206                                 error = EINVAL;
4207                                 break;
4208                         }
4209                         inp->def_vrf_id = *default_vrfid;
4210                         break;
4211                 }
4212         case SCTP_DEL_VRF_ID:
4213                 {
4214                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4215                         error = EOPNOTSUPP;
4216                         break;
4217                 }
4218         case SCTP_ADD_VRF_ID:
4219                 {
4220                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4221                         error = EOPNOTSUPP;
4222                         break;
4223                 }
4224         case SCTP_DELAYED_SACK:
4225                 {
4226                         struct sctp_sack_info *sack;
4227
4228                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4229                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4230                         if (sack->sack_delay) {
4231                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4232                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4233                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4234                                         sack->sack_delay = TICKS_TO_MSEC(1);
4235                                 }
4236                         }
4237                         if (stcb) {
4238                                 if (sack->sack_delay) {
4239                                         stcb->asoc.delayed_ack = sack->sack_delay;
4240                                 }
4241                                 if (sack->sack_freq) {
4242                                         stcb->asoc.sack_freq = sack->sack_freq;
4243                                 }
4244                                 SCTP_TCB_UNLOCK(stcb);
4245                         } else {
4246                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4247                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4248                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4249                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4250                                         SCTP_INP_WLOCK(inp);
4251                                         if (sack->sack_delay) {
4252                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4253                                         }
4254                                         if (sack->sack_freq) {
4255                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4256                                         }
4257                                         SCTP_INP_WUNLOCK(inp);
4258                                 }
4259                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4260                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4261                                         SCTP_INP_RLOCK(inp);
4262                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4263                                                 SCTP_TCB_LOCK(stcb);
4264                                                 if (sack->sack_delay) {
4265                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4266                                                 }
4267                                                 if (sack->sack_freq) {
4268                                                         stcb->asoc.sack_freq = sack->sack_freq;
4269                                                 }
4270                                                 SCTP_TCB_UNLOCK(stcb);
4271                                         }
4272                                         SCTP_INP_RUNLOCK(inp);
4273                                 }
4274                         }
4275                         break;
4276                 }
4277         case SCTP_AUTH_CHUNK:
4278                 {
4279                         struct sctp_authchunk *sauth;
4280
4281                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4282
4283                         SCTP_INP_WLOCK(inp);
4284                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4285                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4286                                 error = EINVAL;
4287                         }
4288                         SCTP_INP_WUNLOCK(inp);
4289                         break;
4290                 }
4291         case SCTP_AUTH_KEY:
4292                 {
4293                         struct sctp_authkey *sca;
4294                         struct sctp_keyhead *shared_keys;
4295                         sctp_sharedkey_t *shared_key;
4296                         sctp_key_t *key = NULL;
4297                         size_t size;
4298
4299                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4300                         if (sca->sca_keylength == 0) {
4301                                 size = optsize - sizeof(struct sctp_authkey);
4302                         } else {
4303                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4304                                         size = sca->sca_keylength;
4305                                 } else {
4306                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4307                                         error = EINVAL;
4308                                         break;
4309                                 }
4310                         }
4311                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4312
4313                         if (stcb) {
4314                                 shared_keys = &stcb->asoc.shared_keys;
4315                                 /* clear the cached keys for this key id */
4316                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4317                                 /*
4318                                  * create the new shared key and
4319                                  * insert/replace it
4320                                  */
4321                                 if (size > 0) {
4322                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4323                                         if (key == NULL) {
4324                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4325                                                 error = ENOMEM;
4326                                                 SCTP_TCB_UNLOCK(stcb);
4327                                                 break;
4328                                         }
4329                                 }
4330                                 shared_key = sctp_alloc_sharedkey();
4331                                 if (shared_key == NULL) {
4332                                         sctp_free_key(key);
4333                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4334                                         error = ENOMEM;
4335                                         SCTP_TCB_UNLOCK(stcb);
4336                                         break;
4337                                 }
4338                                 shared_key->key = key;
4339                                 shared_key->keyid = sca->sca_keynumber;
4340                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4341                                 SCTP_TCB_UNLOCK(stcb);
4342                         } else {
4343                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4344                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4345                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4346                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4347                                         SCTP_INP_WLOCK(inp);
4348                                         shared_keys = &inp->sctp_ep.shared_keys;
4349                                         /*
4350                                          * clear the cached keys on all
4351                                          * assocs for this key id
4352                                          */
4353                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4354                                         /*
4355                                          * create the new shared key and
4356                                          * insert/replace it
4357                                          */
4358                                         if (size > 0) {
4359                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4360                                                 if (key == NULL) {
4361                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4362                                                         error = ENOMEM;
4363                                                         SCTP_INP_WUNLOCK(inp);
4364                                                         break;
4365                                                 }
4366                                         }
4367                                         shared_key = sctp_alloc_sharedkey();
4368                                         if (shared_key == NULL) {
4369                                                 sctp_free_key(key);
4370                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4371                                                 error = ENOMEM;
4372                                                 SCTP_INP_WUNLOCK(inp);
4373                                                 break;
4374                                         }
4375                                         shared_key->key = key;
4376                                         shared_key->keyid = sca->sca_keynumber;
4377                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4378                                         SCTP_INP_WUNLOCK(inp);
4379                                 }
4380                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4381                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4382                                         SCTP_INP_RLOCK(inp);
4383                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4384                                                 SCTP_TCB_LOCK(stcb);
4385                                                 shared_keys = &stcb->asoc.shared_keys;
4386                                                 /*
4387                                                  * clear the cached keys for
4388                                                  * this key id
4389                                                  */
4390                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4391                                                 /*
4392                                                  * create the new shared key
4393                                                  * and insert/replace it
4394                                                  */
4395                                                 if (size > 0) {
4396                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4397                                                         if (key == NULL) {
4398                                                                 SCTP_TCB_UNLOCK(stcb);
4399                                                                 continue;
4400                                                         }
4401                                                 }
4402                                                 shared_key = sctp_alloc_sharedkey();
4403                                                 if (shared_key == NULL) {
4404                                                         sctp_free_key(key);
4405                                                         SCTP_TCB_UNLOCK(stcb);
4406                                                         continue;
4407                                                 }
4408                                                 shared_key->key = key;
4409                                                 shared_key->keyid = sca->sca_keynumber;
4410                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4411                                                 SCTP_TCB_UNLOCK(stcb);
4412                                         }
4413                                         SCTP_INP_RUNLOCK(inp);
4414                                 }
4415                         }
4416                         break;
4417                 }
4418         case SCTP_HMAC_IDENT:
4419                 {
4420                         struct sctp_hmacalgo *shmac;
4421                         sctp_hmaclist_t *hmaclist;
4422                         uint16_t hmacid;
4423                         uint32_t i;
4424
4425                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4426                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4427                             (shmac->shmac_number_of_idents > 0xffff)) {
4428                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4429                                 error = EINVAL;
4430                                 break;
4431                         }
4432                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4433                         if (hmaclist == NULL) {
4434                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4435                                 error = ENOMEM;
4436                                 break;
4437                         }
4438                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4439                                 hmacid = shmac->shmac_idents[i];
4440                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4441                                          /* invalid HMACs were found */ ;
4442                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4443                                         error = EINVAL;
4444                                         sctp_free_hmaclist(hmaclist);
4445                                         goto sctp_set_hmac_done;
4446                                 }
4447                         }
4448                         for (i = 0; i < hmaclist->num_algo; i++) {
4449                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4450                                         /* already in list */
4451                                         break;
4452                                 }
4453                         }
4454                         if (i == hmaclist->num_algo) {
4455                                 /* not found in list */
4456                                 sctp_free_hmaclist(hmaclist);
4457                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4458                                 error = EINVAL;
4459                                 break;
4460                         }
4461                         /* set it on the endpoint */
4462                         SCTP_INP_WLOCK(inp);
4463                         if (inp->sctp_ep.local_hmacs)
4464                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4465                         inp->sctp_ep.local_hmacs = hmaclist;
4466                         SCTP_INP_WUNLOCK(inp);
4467         sctp_set_hmac_done:
4468                         break;
4469                 }
4470         case SCTP_AUTH_ACTIVE_KEY:
4471                 {
4472                         struct sctp_authkeyid *scact;
4473
4474                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4475                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4476
4477                         /* set the active key on the right place */
4478                         if (stcb) {
4479                                 /* set the active key on the assoc */
4480                                 if (sctp_auth_setactivekey(stcb,
4481                                     scact->scact_keynumber)) {
4482                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4483                                             SCTP_FROM_SCTP_USRREQ,
4484                                             EINVAL);
4485                                         error = EINVAL;
4486                                 }
4487                                 SCTP_TCB_UNLOCK(stcb);
4488                         } else {
4489                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4490                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4491                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4492                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4493                                         SCTP_INP_WLOCK(inp);
4494                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4495                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4496                                                 error = EINVAL;
4497                                         }
4498                                         SCTP_INP_WUNLOCK(inp);
4499                                 }
4500                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4501                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4502                                         SCTP_INP_RLOCK(inp);
4503                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4504                                                 SCTP_TCB_LOCK(stcb);
4505                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4506                                                 SCTP_TCB_UNLOCK(stcb);
4507                                         }
4508                                         SCTP_INP_RUNLOCK(inp);
4509                                 }
4510                         }
4511                         break;
4512                 }
4513         case SCTP_AUTH_DELETE_KEY:
4514                 {
4515                         struct sctp_authkeyid *scdel;
4516
4517                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4518                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4519
4520                         /* delete the key from the right place */
4521                         if (stcb) {
4522                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4523                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4524                                         error = EINVAL;
4525                                 }
4526                                 SCTP_TCB_UNLOCK(stcb);
4527                         } else {
4528                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4529                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4530                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4531                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4532                                         SCTP_INP_WLOCK(inp);
4533                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4534                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4535                                                 error = EINVAL;
4536                                         }
4537                                         SCTP_INP_WUNLOCK(inp);
4538                                 }
4539                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4540                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4541                                         SCTP_INP_RLOCK(inp);
4542                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4543                                                 SCTP_TCB_LOCK(stcb);
4544                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4545                                                 SCTP_TCB_UNLOCK(stcb);
4546                                         }
4547                                         SCTP_INP_RUNLOCK(inp);
4548                                 }
4549                         }
4550                         break;
4551                 }
4552         case SCTP_AUTH_DEACTIVATE_KEY:
4553                 {
4554                         struct sctp_authkeyid *keyid;
4555
4556                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4557                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4558
4559                         /* deactivate the key from the right place */
4560                         if (stcb) {
4561                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4562                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4563                                         error = EINVAL;
4564                                 }
4565                                 SCTP_TCB_UNLOCK(stcb);
4566                         } else {
4567                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4568                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4569                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4570                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4571                                         SCTP_INP_WLOCK(inp);
4572                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4573                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4574                                                 error = EINVAL;
4575                                         }
4576                                         SCTP_INP_WUNLOCK(inp);
4577                                 }
4578                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4579                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4580                                         SCTP_INP_RLOCK(inp);
4581                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4582                                                 SCTP_TCB_LOCK(stcb);
4583                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4584                                                 SCTP_TCB_UNLOCK(stcb);
4585                                         }
4586                                         SCTP_INP_RUNLOCK(inp);
4587                                 }
4588                         }
4589                         break;
4590                 }
4591         case SCTP_ENABLE_STREAM_RESET:
4592                 {
4593                         struct sctp_assoc_value *av;
4594
4595                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4596                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4597                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4598                                 error = EINVAL;
4599                                 break;
4600                         }
4601                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4602                         if (stcb) {
4603                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4604                                 SCTP_TCB_UNLOCK(stcb);
4605                         } else {
4606                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4607                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4608                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4609                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4610                                         SCTP_INP_WLOCK(inp);
4611                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4612                                         SCTP_INP_WUNLOCK(inp);
4613                                 }
4614                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4615                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4616                                         SCTP_INP_RLOCK(inp);
4617                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4618                                                 SCTP_TCB_LOCK(stcb);
4619                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4620                                                 SCTP_TCB_UNLOCK(stcb);
4621                                         }
4622                                         SCTP_INP_RUNLOCK(inp);
4623                                 }
4624                         }
4625                         break;
4626                 }
4627         case SCTP_RESET_STREAMS:
4628                 {
4629                         struct sctp_reset_streams *strrst;
4630                         int i, send_out = 0;
4631                         int send_in = 0;
4632
4633                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4634                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4635                         if (stcb == NULL) {
4636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4637                                 error = ENOENT;
4638                                 break;
4639                         }
4640                         if (stcb->asoc.reconfig_supported == 0) {
4641                                 /*
4642                                  * Peer does not support the chunk type.
4643                                  */
4644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4645                                 error = EOPNOTSUPP;
4646                                 SCTP_TCB_UNLOCK(stcb);
4647                                 break;
4648                         }
4649                         if (sizeof(struct sctp_reset_streams) +
4650                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4651                                 error = EINVAL;
4652                                 SCTP_TCB_UNLOCK(stcb);
4653                                 break;
4654                         }
4655                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4656                                 send_in = 1;
4657                                 if (stcb->asoc.stream_reset_outstanding) {
4658                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4659                                         error = EALREADY;
4660                                         SCTP_TCB_UNLOCK(stcb);
4661                                         break;
4662                                 }
4663                         }
4664                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4665                                 send_out = 1;
4666                         }
4667                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4668                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4669                                 error = ENOMEM;
4670                                 SCTP_TCB_UNLOCK(stcb);
4671                                 break;
4672                         }
4673                         if ((send_in == 0) && (send_out == 0)) {
4674                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4675                                 error = EINVAL;
4676                                 SCTP_TCB_UNLOCK(stcb);
4677                                 break;
4678                         }
4679                         for (i = 0; i < strrst->srs_number_streams; i++) {
4680                                 if ((send_in) &&
4681                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4682                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4683                                         error = EINVAL;
4684                                         break;
4685                                 }
4686                                 if ((send_out) &&
4687                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4688                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4689                                         error = EINVAL;
4690                                         break;
4691                                 }
4692                         }
4693                         if (error) {
4694                                 SCTP_TCB_UNLOCK(stcb);
4695                                 break;
4696                         }
4697                         if (send_out) {
4698                                 int cnt;
4699                                 uint16_t strm;
4700
4701                                 if (strrst->srs_number_streams) {
4702                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4703                                                 strm = strrst->srs_stream_list[i];
4704                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4705                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4706                                                         cnt++;
4707                                                 }
4708                                         }
4709                                 } else {
4710                                         /* Its all */
4711                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4712                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4713                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4714                                                         cnt++;
4715                                                 }
4716                                         }
4717                                 }
4718                         }
4719                         if (send_in) {
4720                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4721                                     strrst->srs_stream_list,
4722                                     send_in, 0, 0, 0, 0, 0);
4723                         } else {
4724                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4725                         }
4726                         if (error == 0) {
4727                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4728                         } else {
4729                                 /*
4730                                  * For outgoing streams don't report any
4731                                  * problems in sending the request to the
4732                                  * application. XXX: Double check resetting
4733                                  * incoming streams.
4734                                  */
4735                                 error = 0;
4736                         }
4737                         SCTP_TCB_UNLOCK(stcb);
4738                         break;
4739                 }
4740         case SCTP_ADD_STREAMS:
4741                 {
4742                         struct sctp_add_streams *stradd;
4743                         uint8_t addstream = 0;
4744                         uint16_t add_o_strmcnt = 0;
4745                         uint16_t add_i_strmcnt = 0;
4746
4747                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4748                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4749                         if (stcb == NULL) {
4750                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4751                                 error = ENOENT;
4752                                 break;
4753                         }
4754                         if (stcb->asoc.reconfig_supported == 0) {
4755                                 /*
4756                                  * Peer does not support the chunk type.
4757                                  */
4758                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4759                                 error = EOPNOTSUPP;
4760                                 SCTP_TCB_UNLOCK(stcb);
4761                                 break;
4762                         }
4763                         if (stcb->asoc.stream_reset_outstanding) {
4764                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4765                                 error = EALREADY;
4766                                 SCTP_TCB_UNLOCK(stcb);
4767                                 break;
4768                         }
4769                         if ((stradd->sas_outstrms == 0) &&
4770                             (stradd->sas_instrms == 0)) {
4771                                 error = EINVAL;
4772                                 goto skip_stuff;
4773                         }
4774                         if (stradd->sas_outstrms) {
4775                                 addstream = 1;
4776                                 /* We allocate here */
4777                                 add_o_strmcnt = stradd->sas_outstrms;
4778                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4779                                         /* You can't have more than 64k */
4780                                         error = EINVAL;
4781                                         goto skip_stuff;
4782                                 }
4783                         }
4784                         if (stradd->sas_instrms) {
4785                                 int cnt;
4786
4787                                 addstream |= 2;
4788                                 /*
4789                                  * We allocate inside
4790                                  * sctp_send_str_reset_req()
4791                                  */
4792                                 add_i_strmcnt = stradd->sas_instrms;
4793                                 cnt = add_i_strmcnt;
4794                                 cnt += stcb->asoc.streamincnt;
4795                                 if (cnt > 0x0000ffff) {
4796                                         /* You can't have more than 64k */
4797                                         error = EINVAL;
4798                                         goto skip_stuff;
4799                                 }
4800                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4801                                         /* More than you are allowed */
4802                                         error = EINVAL;
4803                                         goto skip_stuff;
4804                                 }
4805                         }
4806                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4807                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4808         skip_stuff:
4809                         SCTP_TCB_UNLOCK(stcb);
4810                         break;
4811                 }
4812         case SCTP_RESET_ASSOC:
4813                 {
4814                         int i;
4815                         uint32_t *value;
4816
4817                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4818                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4819                         if (stcb == NULL) {
4820                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4821                                 error = ENOENT;
4822                                 break;
4823                         }
4824                         if (stcb->asoc.reconfig_supported == 0) {
4825                                 /*
4826                                  * Peer does not support the chunk type.
4827                                  */
4828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4829                                 error = EOPNOTSUPP;
4830                                 SCTP_TCB_UNLOCK(stcb);
4831                                 break;
4832                         }
4833                         if (stcb->asoc.stream_reset_outstanding) {
4834                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4835                                 error = EALREADY;
4836                                 SCTP_TCB_UNLOCK(stcb);
4837                                 break;
4838                         }
4839                         /*
4840                          * Is there any data pending in the send or sent
4841                          * queues?
4842                          */
4843                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4844                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4845                 busy_out:
4846                                 error = EBUSY;
4847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4848                                 SCTP_TCB_UNLOCK(stcb);
4849                                 break;
4850                         }
4851                         /* Do any streams have data queued? */
4852                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4853                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4854                                         goto busy_out;
4855                                 }
4856                         }
4857                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4858                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4859                         SCTP_TCB_UNLOCK(stcb);
4860                         break;
4861                 }
4862         case SCTP_CONNECT_X:
4863                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4864                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4865                         error = EINVAL;
4866                         break;
4867                 }
4868                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4869                 break;
4870         case SCTP_CONNECT_X_DELAYED:
4871                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4872                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4873                         error = EINVAL;
4874                         break;
4875                 }
4876                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4877                 break;
4878         case SCTP_CONNECT_X_COMPLETE:
4879                 {
4880                         struct sockaddr *sa;
4881
4882                         /* FIXME MT: check correct? */
4883                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4884
4885                         /* find tcb */
4886                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4887                                 SCTP_INP_RLOCK(inp);
4888                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4889                                 if (stcb) {
4890                                         SCTP_TCB_LOCK(stcb);
4891                                 }
4892                                 SCTP_INP_RUNLOCK(inp);
4893                         } else {
4894                                 /*
4895                                  * We increment here since
4896                                  * sctp_findassociation_ep_addr() wil do a
4897                                  * decrement if it finds the stcb as long as
4898                                  * the locked tcb (last argument) is NOT a
4899                                  * TCB.. aka NULL.
4900                                  */
4901                                 SCTP_INP_INCR_REF(inp);
4902                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4903                                 if (stcb == NULL) {
4904                                         SCTP_INP_DECR_REF(inp);
4905                                 }
4906                         }
4907
4908                         if (stcb == NULL) {
4909                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4910                                 error = ENOENT;
4911                                 break;
4912                         }
4913                         if (stcb->asoc.delayed_connection == 1) {
4914                                 stcb->asoc.delayed_connection = 0;
4915                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4916                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4917                                     stcb->asoc.primary_destination,
4918                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4919                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4920                         } else {
4921                                 /*
4922                                  * already expired or did not use delayed
4923                                  * connectx
4924                                  */
4925                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4926                                 error = EALREADY;
4927                         }
4928                         SCTP_TCB_UNLOCK(stcb);
4929                         break;
4930                 }
4931         case SCTP_MAX_BURST:
4932                 {
4933                         struct sctp_assoc_value *av;
4934
4935                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4936                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4937
4938                         if (stcb) {
4939                                 stcb->asoc.max_burst = av->assoc_value;
4940                                 SCTP_TCB_UNLOCK(stcb);
4941                         } else {
4942                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4943                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4944                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4945                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4946                                         SCTP_INP_WLOCK(inp);
4947                                         inp->sctp_ep.max_burst = av->assoc_value;
4948                                         SCTP_INP_WUNLOCK(inp);
4949                                 }
4950                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4951                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4952                                         SCTP_INP_RLOCK(inp);
4953                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4954                                                 SCTP_TCB_LOCK(stcb);
4955                                                 stcb->asoc.max_burst = av->assoc_value;
4956                                                 SCTP_TCB_UNLOCK(stcb);
4957                                         }
4958                                         SCTP_INP_RUNLOCK(inp);
4959                                 }
4960                         }
4961                         break;
4962                 }
4963         case SCTP_MAXSEG:
4964                 {
4965                         struct sctp_assoc_value *av;
4966                         int ovh;
4967
4968                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4969                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4970
4971                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4972                                 ovh = SCTP_MED_OVERHEAD;
4973                         } else {
4974                                 ovh = SCTP_MED_V4_OVERHEAD;
4975                         }
4976                         if (stcb) {
4977                                 if (av->assoc_value) {
4978                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4979                                 } else {
4980                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4981                                 }
4982                                 SCTP_TCB_UNLOCK(stcb);
4983                         } else {
4984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4985                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4986                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4987                                         SCTP_INP_WLOCK(inp);
4988                                         /*
4989                                          * FIXME MT: I think this is not in
4990                                          * tune with the API ID
4991                                          */
4992                                         if (av->assoc_value) {
4993                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4994                                         } else {
4995                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4996                                         }
4997                                         SCTP_INP_WUNLOCK(inp);
4998                                 } else {
4999                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5000                                         error = EINVAL;
5001                                 }
5002                         }
5003                         break;
5004                 }
5005         case SCTP_EVENTS:
5006                 {
5007                         struct sctp_event_subscribe *events;
5008
5009                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5010
5011                         SCTP_INP_WLOCK(inp);
5012                         if (events->sctp_data_io_event) {
5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5014                         } else {
5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5016                         }
5017
5018                         if (events->sctp_association_event) {
5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5020                         } else {
5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5022                         }
5023
5024                         if (events->sctp_address_event) {
5025                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5026                         } else {
5027                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5028                         }
5029
5030                         if (events->sctp_send_failure_event) {
5031                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5032                         } else {
5033                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5034                         }
5035
5036                         if (events->sctp_peer_error_event) {
5037                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5038                         } else {
5039                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5040                         }
5041
5042                         if (events->sctp_shutdown_event) {
5043                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5044                         } else {
5045                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5046                         }
5047
5048                         if (events->sctp_partial_delivery_event) {
5049                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5050                         } else {
5051                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5052                         }
5053
5054                         if (events->sctp_adaptation_layer_event) {
5055                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5056                         } else {
5057                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5058                         }
5059
5060                         if (events->sctp_authentication_event) {
5061                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5062                         } else {
5063                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5064                         }
5065
5066                         if (events->sctp_sender_dry_event) {
5067                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5068                         } else {
5069                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5070                         }
5071
5072                         if (events->sctp_stream_reset_event) {
5073                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5074                         } else {
5075                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5076                         }
5077                         SCTP_INP_WUNLOCK(inp);
5078
5079                         SCTP_INP_RLOCK(inp);
5080                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5081                                 SCTP_TCB_LOCK(stcb);
5082                                 if (events->sctp_association_event) {
5083                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5084                                 } else {
5085                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5086                                 }
5087                                 if (events->sctp_address_event) {
5088                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5089                                 } else {
5090                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5091                                 }
5092                                 if (events->sctp_send_failure_event) {
5093                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5094                                 } else {
5095                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5096                                 }
5097                                 if (events->sctp_peer_error_event) {
5098                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5099                                 } else {
5100                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5101                                 }
5102                                 if (events->sctp_shutdown_event) {
5103                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5104                                 } else {
5105                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5106                                 }
5107                                 if (events->sctp_partial_delivery_event) {
5108                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5109                                 } else {
5110                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5111                                 }
5112                                 if (events->sctp_adaptation_layer_event) {
5113                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5114                                 } else {
5115                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5116                                 }
5117                                 if (events->sctp_authentication_event) {
5118                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5119                                 } else {
5120                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5121                                 }
5122                                 if (events->sctp_sender_dry_event) {
5123                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5124                                 } else {
5125                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5126                                 }
5127                                 if (events->sctp_stream_reset_event) {
5128                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5129                                 } else {
5130                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5131                                 }
5132                                 SCTP_TCB_UNLOCK(stcb);
5133                         }
5134                         /*
5135                          * Send up the sender dry event only for 1-to-1
5136                          * style sockets.
5137                          */
5138                         if (events->sctp_sender_dry_event) {
5139                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5140                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5141                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5142                                         if (stcb) {
5143                                                 SCTP_TCB_LOCK(stcb);
5144                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5145                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5146                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5147                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5148                                                 }
5149                                                 SCTP_TCB_UNLOCK(stcb);
5150                                         }
5151                                 }
5152                         }
5153                         SCTP_INP_RUNLOCK(inp);
5154                         break;
5155                 }
5156         case SCTP_ADAPTATION_LAYER:
5157                 {
5158                         struct sctp_setadaptation *adap_bits;
5159
5160                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5161                         SCTP_INP_WLOCK(inp);
5162                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5163                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5164                         SCTP_INP_WUNLOCK(inp);
5165                         break;
5166                 }
5167 #ifdef SCTP_DEBUG
5168         case SCTP_SET_INITIAL_DBG_SEQ:
5169                 {
5170                         uint32_t *vvv;
5171
5172                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5173                         SCTP_INP_WLOCK(inp);
5174                         inp->sctp_ep.initial_sequence_debug = *vvv;
5175                         SCTP_INP_WUNLOCK(inp);
5176                         break;
5177                 }
5178 #endif
5179         case SCTP_DEFAULT_SEND_PARAM:
5180                 {
5181                         struct sctp_sndrcvinfo *s_info;
5182
5183                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5184                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5185
5186                         if (stcb) {
5187                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5188                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5189                                 } else {
5190                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5191                                         error = EINVAL;
5192                                 }
5193                                 SCTP_TCB_UNLOCK(stcb);
5194                         } else {
5195                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5196                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5197                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5198                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5199                                         SCTP_INP_WLOCK(inp);
5200                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5201                                         SCTP_INP_WUNLOCK(inp);
5202                                 }
5203                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5204                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5205                                         SCTP_INP_RLOCK(inp);
5206                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5207                                                 SCTP_TCB_LOCK(stcb);
5208                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5209                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5210                                                 }
5211                                                 SCTP_TCB_UNLOCK(stcb);
5212                                         }
5213                                         SCTP_INP_RUNLOCK(inp);
5214                                 }
5215                         }
5216                         break;
5217                 }
5218         case SCTP_PEER_ADDR_PARAMS:
5219                 {
5220                         struct sctp_paddrparams *paddrp;
5221                         struct sctp_nets *net;
5222                         struct sockaddr *addr;
5223
5224 #if defined(INET) && defined(INET6)
5225                         struct sockaddr_in sin_store;
5226
5227 #endif
5228
5229                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5230                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5231
5232 #if defined(INET) && defined(INET6)
5233                         if (paddrp->spp_address.ss_family == AF_INET6) {
5234                                 struct sockaddr_in6 *sin6;
5235
5236                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5237                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5238                                         in6_sin6_2_sin(&sin_store, sin6);
5239                                         addr = (struct sockaddr *)&sin_store;
5240                                 } else {
5241                                         addr = (struct sockaddr *)&paddrp->spp_address;
5242                                 }
5243                         } else {
5244                                 addr = (struct sockaddr *)&paddrp->spp_address;
5245                         }
5246 #else
5247                         addr = (struct sockaddr *)&paddrp->spp_address;
5248 #endif
5249                         if (stcb != NULL) {
5250                                 net = sctp_findnet(stcb, addr);
5251                         } else {
5252                                 /*
5253                                  * We increment here since
5254                                  * sctp_findassociation_ep_addr() wil do a
5255                                  * decrement if it finds the stcb as long as
5256                                  * the locked tcb (last argument) is NOT a
5257                                  * TCB.. aka NULL.
5258                                  */
5259                                 net = NULL;
5260                                 SCTP_INP_INCR_REF(inp);
5261                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5262                                     &net, NULL, NULL);
5263                                 if (stcb == NULL) {
5264                                         SCTP_INP_DECR_REF(inp);
5265                                 }
5266                         }
5267                         if ((stcb != NULL) && (net == NULL)) {
5268 #ifdef INET
5269                                 if (addr->sa_family == AF_INET) {
5270
5271                                         struct sockaddr_in *sin;
5272
5273                                         sin = (struct sockaddr_in *)addr;
5274                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5275                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5276                                                 SCTP_TCB_UNLOCK(stcb);
5277                                                 error = EINVAL;
5278                                                 break;
5279                                         }
5280                                 } else
5281 #endif
5282 #ifdef INET6
5283                                 if (addr->sa_family == AF_INET6) {
5284                                         struct sockaddr_in6 *sin6;
5285
5286                                         sin6 = (struct sockaddr_in6 *)addr;
5287                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5288                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5289                                                 SCTP_TCB_UNLOCK(stcb);
5290                                                 error = EINVAL;
5291                                                 break;
5292                                         }
5293                                 } else
5294 #endif
5295                                 {
5296                                         error = EAFNOSUPPORT;
5297                                         SCTP_TCB_UNLOCK(stcb);
5298                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5299                                         break;
5300                                 }
5301                         }
5302                         /* sanity checks */
5303                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5304                                 if (stcb)
5305                                         SCTP_TCB_UNLOCK(stcb);
5306                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5307                                 return (EINVAL);
5308                         }
5309                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5310                                 if (stcb)
5311                                         SCTP_TCB_UNLOCK(stcb);
5312                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5313                                 return (EINVAL);
5314                         }
5315                         if (stcb != NULL) {
5316                                 /************************TCB SPECIFIC SET ******************/
5317                                 if (net != NULL) {
5318                                         /************************NET SPECIFIC SET ******************/
5319                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5320                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5321                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5322                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5323                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5324                                                 }
5325                                                 net->dest_state |= SCTP_ADDR_NOHB;
5326                                         }
5327                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5328                                                 if (paddrp->spp_hbinterval) {
5329                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5330                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5331                                                         net->heart_beat_delay = 0;
5332                                                 }
5333                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5334                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5335                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5336                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5337                                         }
5338                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5339                                                 /* on demand HB */
5340                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5341                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5342                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5343                                         }
5344                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5345                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5346                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5347                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5348                                                 }
5349                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5350                                                 net->mtu = paddrp->spp_pathmtu;
5351                                                 switch (net->ro._l_addr.sa.sa_family) {
5352 #ifdef INET
5353                                                 case AF_INET:
5354                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5355                                                         break;
5356 #endif
5357 #ifdef INET6
5358                                                 case AF_INET6:
5359                                                         net->mtu += SCTP_MIN_OVERHEAD;
5360                                                         break;
5361 #endif
5362                                                 default:
5363                                                         break;
5364                                                 }
5365                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5366                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5367                                                 }
5368                                         }
5369                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5370                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5371                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5372                                                 }
5373                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5374                                         }
5375                                         if (paddrp->spp_pathmaxrxt) {
5376                                                 if (net->dest_state & SCTP_ADDR_PF) {
5377                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5378                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5379                                                         }
5380                                                 } else {
5381                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5382                                                             (net->error_count > net->pf_threshold)) {
5383                                                                 net->dest_state |= SCTP_ADDR_PF;
5384                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5385                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5386                                                                     stcb->sctp_ep, stcb, net,
5387                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5388                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5389                                                         }
5390                                                 }
5391                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5392                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5393                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5394                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5395                                                         }
5396                                                 } else {
5397                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5398                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5399                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5400                                                         }
5401                                                 }
5402                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5403                                         }
5404                                         if (paddrp->spp_flags & SPP_DSCP) {
5405                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5406                                                 net->dscp |= 0x01;
5407                                         }
5408 #ifdef INET6
5409                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5410                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5411                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5412                                                         net->flowlabel |= 0x80000000;
5413                                                 }
5414                                         }
5415 #endif
5416                                 } else {
5417                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5418                                         if (paddrp->spp_pathmaxrxt != 0) {
5419                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5420                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5421                                                         if (net->dest_state & SCTP_ADDR_PF) {
5422                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5423                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5424                                                                 }
5425                                                         } else {
5426                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5427                                                                     (net->error_count > net->pf_threshold)) {
5428                                                                         net->dest_state |= SCTP_ADDR_PF;
5429                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5430                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5431                                                                             stcb->sctp_ep, stcb, net,
5432                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5433                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5434                                                                 }
5435                                                         }
5436                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5437                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5438                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5439                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5440                                                                 }
5441                                                         } else {
5442                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5443                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5444                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5445                                                                 }
5446                                                         }
5447                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5448                                                 }
5449                                         }
5450                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5451                                                 if (paddrp->spp_hbinterval != 0) {
5452                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5453                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5454                                                         stcb->asoc.heart_beat_delay = 0;
5455                                                 }
5456                                                 /* Turn back on the timer */
5457                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5458                                                         if (paddrp->spp_hbinterval != 0) {
5459                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5460                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5461                                                                 net->heart_beat_delay = 0;
5462                                                         }
5463                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5464                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5465                                                         }
5466                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5467                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5468                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5469                                                 }
5470                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5471                                         }
5472                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5473                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5474                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5475                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5476                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5477                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5478                                                                             inp, stcb, net,
5479                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5480                                                                 }
5481                                                         }
5482                                                 }
5483                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5484                                         }
5485                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5486                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5487                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5488                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5489                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5490                                                         }
5491                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5492                                                         net->mtu = paddrp->spp_pathmtu;
5493                                                         switch (net->ro._l_addr.sa.sa_family) {
5494 #ifdef INET
5495                                                         case AF_INET:
5496                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5497                                                                 break;
5498 #endif
5499 #ifdef INET6
5500                                                         case AF_INET6:
5501                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5502                                                                 break;
5503 #endif
5504                                                         default:
5505                                                                 break;
5506                                                         }
5507                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5508                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5509                                                         }
5510                                                 }
5511                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5512                                         }
5513                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5514                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5515                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5516                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5517                                                         }
5518                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5519                                                 }
5520                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5521                                         }
5522                                         if (paddrp->spp_flags & SPP_DSCP) {
5523                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5524                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5525                                                         net->dscp |= 0x01;
5526                                                 }
5527                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5528                                                 stcb->asoc.default_dscp |= 0x01;
5529                                         }
5530 #ifdef INET6
5531                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5532                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5533                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5534                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5535                                                                 net->flowlabel |= 0x80000000;
5536                                                         }
5537                                                 }
5538                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5539                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5540                                         }
5541 #endif
5542                                 }
5543                                 SCTP_TCB_UNLOCK(stcb);
5544                         } else {
5545                                 /************************NO TCB, SET TO default stuff ******************/
5546                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5547                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5548                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5549                                         SCTP_INP_WLOCK(inp);
5550                                         /*
5551                                          * For the TOS/FLOWLABEL stuff you
5552                                          * set it with the options on the
5553                                          * socket
5554                                          */
5555                                         if (paddrp->spp_pathmaxrxt != 0) {
5556                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5557                                         }
5558                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5559                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5560                                         else if (paddrp->spp_hbinterval != 0) {
5561                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5562                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5563                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5564                                         }
5565                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5566                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5567                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5568                                                 } else if (paddrp->spp_hbinterval) {
5569                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5570                                                 }
5571                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5572                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5573                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5574                                         }
5575                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5576                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5577                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5578                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5579                                         }
5580                                         if (paddrp->spp_flags & SPP_DSCP) {
5581                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5582                                                 inp->sctp_ep.default_dscp |= 0x01;
5583                                         }
5584 #ifdef INET6
5585                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5586                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5587                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5588                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5589                                                 }
5590                                         }
5591 #endif
5592                                         SCTP_INP_WUNLOCK(inp);
5593                                 } else {
5594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5595                                         error = EINVAL;
5596                                 }
5597                         }
5598                         break;
5599                 }
5600         case SCTP_RTOINFO:
5601                 {
5602                         struct sctp_rtoinfo *srto;
5603                         uint32_t new_init, new_min, new_max;
5604
5605                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5606                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5607
5608                         if (stcb) {
5609                                 if (srto->srto_initial)
5610                                         new_init = srto->srto_initial;
5611                                 else
5612                                         new_init = stcb->asoc.initial_rto;
5613                                 if (srto->srto_max)
5614                                         new_max = srto->srto_max;
5615                                 else
5616                                         new_max = stcb->asoc.maxrto;
5617                                 if (srto->srto_min)
5618                                         new_min = srto->srto_min;
5619                                 else
5620                                         new_min = stcb->asoc.minrto;
5621                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5622                                         stcb->asoc.initial_rto = new_init;
5623                                         stcb->asoc.maxrto = new_max;
5624                                         stcb->asoc.minrto = new_min;
5625                                 } else {
5626                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5627                                         error = EINVAL;
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                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5634                                         SCTP_INP_WLOCK(inp);
5635                                         if (srto->srto_initial)
5636                                                 new_init = srto->srto_initial;
5637                                         else
5638                                                 new_init = inp->sctp_ep.initial_rto;
5639                                         if (srto->srto_max)
5640                                                 new_max = srto->srto_max;
5641                                         else
5642                                                 new_max = inp->sctp_ep.sctp_maxrto;
5643                                         if (srto->srto_min)
5644                                                 new_min = srto->srto_min;
5645                                         else
5646                                                 new_min = inp->sctp_ep.sctp_minrto;
5647                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5648                                                 inp->sctp_ep.initial_rto = new_init;
5649                                                 inp->sctp_ep.sctp_maxrto = new_max;
5650                                                 inp->sctp_ep.sctp_minrto = new_min;
5651                                         } else {
5652                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5653                                                 error = EINVAL;
5654                                         }
5655                                         SCTP_INP_WUNLOCK(inp);
5656                                 } else {
5657                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5658                                         error = EINVAL;
5659                                 }
5660                         }
5661                         break;
5662                 }
5663         case SCTP_ASSOCINFO:
5664                 {
5665                         struct sctp_assocparams *sasoc;
5666
5667                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5668                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5669                         if (sasoc->sasoc_cookie_life) {
5670                                 /* boundary check the cookie life */
5671                                 if (sasoc->sasoc_cookie_life < 1000)
5672                                         sasoc->sasoc_cookie_life = 1000;
5673                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5674                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5675                                 }
5676                         }
5677                         if (stcb) {
5678                                 if (sasoc->sasoc_asocmaxrxt)
5679                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5680                                 if (sasoc->sasoc_cookie_life) {
5681                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5682                                 }
5683                                 SCTP_TCB_UNLOCK(stcb);
5684                         } else {
5685                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5686                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5687                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5688                                         SCTP_INP_WLOCK(inp);
5689                                         if (sasoc->sasoc_asocmaxrxt)
5690                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5691                                         if (sasoc->sasoc_cookie_life) {
5692                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5693                                         }
5694                                         SCTP_INP_WUNLOCK(inp);
5695                                 } else {
5696                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5697                                         error = EINVAL;
5698                                 }
5699                         }
5700                         break;
5701                 }
5702         case SCTP_INITMSG:
5703                 {
5704                         struct sctp_initmsg *sinit;
5705
5706                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5707                         SCTP_INP_WLOCK(inp);
5708                         if (sinit->sinit_num_ostreams)
5709                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5710
5711                         if (sinit->sinit_max_instreams)
5712                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5713
5714                         if (sinit->sinit_max_attempts)
5715                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5716
5717                         if (sinit->sinit_max_init_timeo)
5718                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5719                         SCTP_INP_WUNLOCK(inp);
5720                         break;
5721                 }
5722         case SCTP_PRIMARY_ADDR:
5723                 {
5724                         struct sctp_setprim *spa;
5725                         struct sctp_nets *net;
5726                         struct sockaddr *addr;
5727
5728 #if defined(INET) && defined(INET6)
5729                         struct sockaddr_in sin_store;
5730
5731 #endif
5732
5733                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5734                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5735
5736 #if defined(INET) && defined(INET6)
5737                         if (spa->ssp_addr.ss_family == AF_INET6) {
5738                                 struct sockaddr_in6 *sin6;
5739
5740                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5741                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5742                                         in6_sin6_2_sin(&sin_store, sin6);
5743                                         addr = (struct sockaddr *)&sin_store;
5744                                 } else {
5745                                         addr = (struct sockaddr *)&spa->ssp_addr;
5746                                 }
5747                         } else {
5748                                 addr = (struct sockaddr *)&spa->ssp_addr;
5749                         }
5750 #else
5751                         addr = (struct sockaddr *)&spa->ssp_addr;
5752 #endif
5753                         if (stcb != NULL) {
5754                                 net = sctp_findnet(stcb, addr);
5755                         } else {
5756                                 /*
5757                                  * We increment here since
5758                                  * sctp_findassociation_ep_addr() wil do a
5759                                  * decrement if it finds the stcb as long as
5760                                  * the locked tcb (last argument) is NOT a
5761                                  * TCB.. aka NULL.
5762                                  */
5763                                 net = NULL;
5764                                 SCTP_INP_INCR_REF(inp);
5765                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5766                                     &net, NULL, NULL);
5767                                 if (stcb == NULL) {
5768                                         SCTP_INP_DECR_REF(inp);
5769                                 }
5770                         }
5771
5772                         if ((stcb != NULL) && (net != NULL)) {
5773                                 if (net != stcb->asoc.primary_destination) {
5774                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5775                                                 /* Ok we need to set it */
5776                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5777                                                         if ((stcb->asoc.alternate) &&
5778                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5779                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5780                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5781                                                                 stcb->asoc.alternate = NULL;
5782                                                         }
5783                                                 } else {
5784                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5785                                                         error = EINVAL;
5786                                                 }
5787                                         } else {
5788                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5789                                                 error = EINVAL;
5790                                         }
5791                                 }
5792                         } else {
5793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5794                                 error = EINVAL;
5795                         }
5796                         if (stcb != NULL) {
5797                                 SCTP_TCB_UNLOCK(stcb);
5798                         }
5799                         break;
5800                 }
5801         case SCTP_SET_DYNAMIC_PRIMARY:
5802                 {
5803                         union sctp_sockstore *ss;
5804
5805                         error = priv_check(curthread,
5806                             PRIV_NETINET_RESERVEDPORT);
5807                         if (error)
5808                                 break;
5809
5810                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5811                         /* SUPER USER CHECK? */
5812                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5813                         break;
5814                 }
5815         case SCTP_SET_PEER_PRIMARY_ADDR:
5816                 {
5817                         struct sctp_setpeerprim *sspp;
5818                         struct sockaddr *addr;
5819
5820 #if defined(INET) && defined(INET6)
5821                         struct sockaddr_in sin_store;
5822
5823 #endif
5824
5825                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5826                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5827                         if (stcb != NULL) {
5828                                 struct sctp_ifa *ifa;
5829
5830 #if defined(INET) && defined(INET6)
5831                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5832                                         struct sockaddr_in6 *sin6;
5833
5834                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5835                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5836                                                 in6_sin6_2_sin(&sin_store, sin6);
5837                                                 addr = (struct sockaddr *)&sin_store;
5838                                         } else {
5839                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5840                                         }
5841                                 } else {
5842                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5843                                 }
5844 #else
5845                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5846 #endif
5847                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5848                                 if (ifa == NULL) {
5849                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5850                                         error = EINVAL;
5851                                         goto out_of_it;
5852                                 }
5853                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5854                                         /*
5855                                          * Must validate the ifa found is in
5856                                          * our ep
5857                                          */
5858                                         struct sctp_laddr *laddr;
5859                                         int found = 0;
5860
5861                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5862                                                 if (laddr->ifa == NULL) {
5863                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5864                                                             __func__);
5865                                                         continue;
5866                                                 }
5867                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5868                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5869                                                         continue;
5870                                                 }
5871                                                 if (laddr->ifa == ifa) {
5872                                                         found = 1;
5873                                                         break;
5874                                                 }
5875                                         }
5876                                         if (!found) {
5877                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5878                                                 error = EINVAL;
5879                                                 goto out_of_it;
5880                                         }
5881                                 } else {
5882                                         switch (addr->sa_family) {
5883 #ifdef INET
5884                                         case AF_INET:
5885                                                 {
5886                                                         struct sockaddr_in *sin;
5887
5888                                                         sin = (struct sockaddr_in *)addr;
5889                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5890                                                             &sin->sin_addr) != 0) {
5891                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5892                                                                 error = EINVAL;
5893                                                                 goto out_of_it;
5894                                                         }
5895                                                         break;
5896                                                 }
5897 #endif
5898 #ifdef INET6
5899                                         case AF_INET6:
5900                                                 {
5901                                                         struct sockaddr_in6 *sin6;
5902
5903                                                         sin6 = (struct sockaddr_in6 *)addr;
5904                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5905                                                             &sin6->sin6_addr) != 0) {
5906                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5907                                                                 error = EINVAL;
5908                                                                 goto out_of_it;
5909                                                         }
5910                                                         break;
5911                                                 }
5912 #endif
5913                                         default:
5914                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5915                                                 error = EINVAL;
5916                                                 goto out_of_it;
5917                                         }
5918                                 }
5919                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5920                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5921                                         error = EINVAL;
5922                                 }
5923                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5924                 out_of_it:
5925                                 SCTP_TCB_UNLOCK(stcb);
5926                         } else {
5927                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5928                                 error = EINVAL;
5929                         }
5930                         break;
5931                 }
5932         case SCTP_BINDX_ADD_ADDR:
5933                 {
5934                         struct sctp_getaddresses *addrs;
5935                         struct thread *td;
5936
5937                         td = (struct thread *)p;
5938                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5939                             optsize);
5940 #ifdef INET
5941                         if (addrs->addr->sa_family == AF_INET) {
5942                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5943                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5944                                         error = EINVAL;
5945                                         break;
5946                                 }
5947                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5948                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5949                                         break;
5950                                 }
5951                         } else
5952 #endif
5953 #ifdef INET6
5954                         if (addrs->addr->sa_family == AF_INET6) {
5955                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5956                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5957                                         error = EINVAL;
5958                                         break;
5959                                 }
5960                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5961                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5962                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5963                                         break;
5964                                 }
5965                         } else
5966 #endif
5967                         {
5968                                 error = EAFNOSUPPORT;
5969                                 break;
5970                         }
5971                         sctp_bindx_add_address(so, inp, addrs->addr,
5972                             addrs->sget_assoc_id, vrf_id,
5973                             &error, p);
5974                         break;
5975                 }
5976         case SCTP_BINDX_REM_ADDR:
5977                 {
5978                         struct sctp_getaddresses *addrs;
5979                         struct thread *td;
5980
5981                         td = (struct thread *)p;
5982
5983                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5984 #ifdef INET
5985                         if (addrs->addr->sa_family == AF_INET) {
5986                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5987                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5988                                         error = EINVAL;
5989                                         break;
5990                                 }
5991                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5992                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5993                                         break;
5994                                 }
5995                         } else
5996 #endif
5997 #ifdef INET6
5998                         if (addrs->addr->sa_family == AF_INET6) {
5999                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6000                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6001                                         error = EINVAL;
6002                                         break;
6003                                 }
6004                                 if (td != NULL &&
6005                                     (error = prison_local_ip6(td->td_ucred,
6006                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6007                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6008                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6009                                         break;
6010                                 }
6011                         } else
6012 #endif
6013                         {
6014                                 error = EAFNOSUPPORT;
6015                                 break;
6016                         }
6017                         sctp_bindx_delete_address(inp, addrs->addr,
6018                             addrs->sget_assoc_id, vrf_id,
6019                             &error);
6020                         break;
6021                 }
6022         case SCTP_EVENT:
6023                 {
6024                         struct sctp_event *event;
6025                         uint32_t event_type;
6026
6027                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6028                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6029                         switch (event->se_type) {
6030                         case SCTP_ASSOC_CHANGE:
6031                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6032                                 break;
6033                         case SCTP_PEER_ADDR_CHANGE:
6034                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6035                                 break;
6036                         case SCTP_REMOTE_ERROR:
6037                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6038                                 break;
6039                         case SCTP_SEND_FAILED:
6040                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6041                                 break;
6042                         case SCTP_SHUTDOWN_EVENT:
6043                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6044                                 break;
6045                         case SCTP_ADAPTATION_INDICATION:
6046                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6047                                 break;
6048                         case SCTP_PARTIAL_DELIVERY_EVENT:
6049                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6050                                 break;
6051                         case SCTP_AUTHENTICATION_EVENT:
6052                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6053                                 break;
6054                         case SCTP_STREAM_RESET_EVENT:
6055                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6056                                 break;
6057                         case SCTP_SENDER_DRY_EVENT:
6058                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6059                                 break;
6060                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6061                                 event_type = 0;
6062                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6063                                 error = ENOTSUP;
6064                                 break;
6065                         case SCTP_ASSOC_RESET_EVENT:
6066                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6067                                 break;
6068                         case SCTP_STREAM_CHANGE_EVENT:
6069                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6070                                 break;
6071                         case SCTP_SEND_FAILED_EVENT:
6072                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6073                                 break;
6074                         default:
6075                                 event_type = 0;
6076                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6077                                 error = EINVAL;
6078                                 break;
6079                         }
6080                         if (event_type > 0) {
6081                                 if (stcb) {
6082                                         if (event->se_on) {
6083                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6084                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6085                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6086                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6087                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6088                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6089                                                         }
6090                                                 }
6091                                         } else {
6092                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6093                                         }
6094                                         SCTP_TCB_UNLOCK(stcb);
6095                                 } else {
6096                                         /*
6097                                          * We don't want to send up a storm
6098                                          * of events, so return an error for
6099                                          * sender dry events
6100                                          */
6101                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6102                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6103                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6104                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6105                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6106                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6107                                                 error = ENOTSUP;
6108                                                 break;
6109                                         }
6110                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6111                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6112                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6113                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6114                                                 SCTP_INP_WLOCK(inp);
6115                                                 if (event->se_on) {
6116                                                         sctp_feature_on(inp, event_type);
6117                                                 } else {
6118                                                         sctp_feature_off(inp, event_type);
6119                                                 }
6120                                                 SCTP_INP_WUNLOCK(inp);
6121                                         }
6122                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6123                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6124                                                 SCTP_INP_RLOCK(inp);
6125                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6126                                                         SCTP_TCB_LOCK(stcb);
6127                                                         if (event->se_on) {
6128                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6129                                                         } else {
6130                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6131                                                         }
6132                                                         SCTP_TCB_UNLOCK(stcb);
6133                                                 }
6134                                                 SCTP_INP_RUNLOCK(inp);
6135                                         }
6136                                 }
6137                         }
6138                         break;
6139                 }
6140         case SCTP_RECVRCVINFO:
6141                 {
6142                         int *onoff;
6143
6144                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6145                         SCTP_INP_WLOCK(inp);
6146                         if (*onoff != 0) {
6147                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6148                         } else {
6149                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6150                         }
6151                         SCTP_INP_WUNLOCK(inp);
6152                         break;
6153                 }
6154         case SCTP_RECVNXTINFO:
6155                 {
6156                         int *onoff;
6157
6158                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6159                         SCTP_INP_WLOCK(inp);
6160                         if (*onoff != 0) {
6161                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6162                         } else {
6163                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6164                         }
6165                         SCTP_INP_WUNLOCK(inp);
6166                         break;
6167                 }
6168         case SCTP_DEFAULT_SNDINFO:
6169                 {
6170                         struct sctp_sndinfo *info;
6171                         uint16_t policy;
6172
6173                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6174                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6175
6176                         if (stcb) {
6177                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6178                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6179                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6180                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6181                                         stcb->asoc.def_send.sinfo_flags |= policy;
6182                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6183                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6184                                 } else {
6185                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6186                                         error = EINVAL;
6187                                 }
6188                                 SCTP_TCB_UNLOCK(stcb);
6189                         } else {
6190                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6191                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6192                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6193                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6194                                         SCTP_INP_WLOCK(inp);
6195                                         inp->def_send.sinfo_stream = info->snd_sid;
6196                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6197                                         inp->def_send.sinfo_flags = info->snd_flags;
6198                                         inp->def_send.sinfo_flags |= policy;
6199                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6200                                         inp->def_send.sinfo_context = info->snd_context;
6201                                         SCTP_INP_WUNLOCK(inp);
6202                                 }
6203                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6204                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6205                                         SCTP_INP_RLOCK(inp);
6206                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6207                                                 SCTP_TCB_LOCK(stcb);
6208                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6209                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6210                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6211                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6212                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6213                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6214                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6215                                                 }
6216                                                 SCTP_TCB_UNLOCK(stcb);
6217                                         }
6218                                         SCTP_INP_RUNLOCK(inp);
6219                                 }
6220                         }
6221                         break;
6222                 }
6223         case SCTP_DEFAULT_PRINFO:
6224                 {
6225                         struct sctp_default_prinfo *info;
6226
6227                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6228                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6229
6230                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6231                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6232                                 error = EINVAL;
6233                                 break;
6234                         }
6235                         if (stcb) {
6236                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6237                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6238                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6239                                 SCTP_TCB_UNLOCK(stcb);
6240                         } else {
6241                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6242                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6243                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6244                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6245                                         SCTP_INP_WLOCK(inp);
6246                                         inp->def_send.sinfo_flags &= 0xfff0;
6247                                         inp->def_send.sinfo_flags |= info->pr_policy;
6248                                         inp->def_send.sinfo_timetolive = info->pr_value;
6249                                         SCTP_INP_WUNLOCK(inp);
6250                                 }
6251                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6252                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6253                                         SCTP_INP_RLOCK(inp);
6254                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6255                                                 SCTP_TCB_LOCK(stcb);
6256                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6257                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6258                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6259                                                 SCTP_TCB_UNLOCK(stcb);
6260                                         }
6261                                         SCTP_INP_RUNLOCK(inp);
6262                                 }
6263                         }
6264                         break;
6265                 }
6266         case SCTP_PEER_ADDR_THLDS:
6267                 /* Applies to the specific association */
6268                 {
6269                         struct sctp_paddrthlds *thlds;
6270                         struct sctp_nets *net;
6271                         struct sockaddr *addr;
6272
6273 #if defined(INET) && defined(INET6)
6274                         struct sockaddr_in sin_store;
6275
6276 #endif
6277
6278                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6279                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6280
6281 #if defined(INET) && defined(INET6)
6282                         if (thlds->spt_address.ss_family == AF_INET6) {
6283                                 struct sockaddr_in6 *sin6;
6284
6285                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6286                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6287                                         in6_sin6_2_sin(&sin_store, sin6);
6288                                         addr = (struct sockaddr *)&sin_store;
6289                                 } else {
6290                                         addr = (struct sockaddr *)&thlds->spt_address;
6291                                 }
6292                         } else {
6293                                 addr = (struct sockaddr *)&thlds->spt_address;
6294                         }
6295 #else
6296                         addr = (struct sockaddr *)&thlds->spt_address;
6297 #endif
6298                         if (stcb != NULL) {
6299                                 net = sctp_findnet(stcb, addr);
6300                         } else {
6301                                 /*
6302                                  * We increment here since
6303                                  * sctp_findassociation_ep_addr() wil do a
6304                                  * decrement if it finds the stcb as long as
6305                                  * the locked tcb (last argument) is NOT a
6306                                  * TCB.. aka NULL.
6307                                  */
6308                                 net = NULL;
6309                                 SCTP_INP_INCR_REF(inp);
6310                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6311                                     &net, NULL, NULL);
6312                                 if (stcb == NULL) {
6313                                         SCTP_INP_DECR_REF(inp);
6314                                 }
6315                         }
6316                         if ((stcb != NULL) && (net == NULL)) {
6317 #ifdef INET
6318                                 if (addr->sa_family == AF_INET) {
6319
6320                                         struct sockaddr_in *sin;
6321
6322                                         sin = (struct sockaddr_in *)addr;
6323                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6324                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6325                                                 SCTP_TCB_UNLOCK(stcb);
6326                                                 error = EINVAL;
6327                                                 break;
6328                                         }
6329                                 } else
6330 #endif
6331 #ifdef INET6
6332                                 if (addr->sa_family == AF_INET6) {
6333                                         struct sockaddr_in6 *sin6;
6334
6335                                         sin6 = (struct sockaddr_in6 *)addr;
6336                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6337                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6338                                                 SCTP_TCB_UNLOCK(stcb);
6339                                                 error = EINVAL;
6340                                                 break;
6341                                         }
6342                                 } else
6343 #endif
6344                                 {
6345                                         error = EAFNOSUPPORT;
6346                                         SCTP_TCB_UNLOCK(stcb);
6347                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6348                                         break;
6349                                 }
6350                         }
6351                         if (thlds->spt_pathcpthld != 0xffff) {
6352                                 error = EINVAL;
6353                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6354                                 break;
6355                         }
6356                         if (stcb != NULL) {
6357                                 if (net != NULL) {
6358                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6359                                         net->pf_threshold = thlds->spt_pathpfthld;
6360                                         if (net->dest_state & SCTP_ADDR_PF) {
6361                                                 if ((net->error_count > net->failure_threshold) ||
6362                                                     (net->error_count <= net->pf_threshold)) {
6363                                                         net->dest_state &= ~SCTP_ADDR_PF;
6364                                                 }
6365                                         } else {
6366                                                 if ((net->error_count > net->pf_threshold) &&
6367                                                     (net->error_count <= net->failure_threshold)) {
6368                                                         net->dest_state |= SCTP_ADDR_PF;
6369                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6370                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6371                                                             stcb->sctp_ep, stcb, net,
6372                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6373                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6374                                                 }
6375                                         }
6376                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6377                                                 if (net->error_count > net->failure_threshold) {
6378                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6379                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6380                                                 }
6381                                         } else {
6382                                                 if (net->error_count <= net->failure_threshold) {
6383                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6384                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6385                                                 }
6386                                         }
6387                                 } else {
6388                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6389                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6390                                                 net->pf_threshold = thlds->spt_pathpfthld;
6391                                                 if (net->dest_state & SCTP_ADDR_PF) {
6392                                                         if ((net->error_count > net->failure_threshold) ||
6393                                                             (net->error_count <= net->pf_threshold)) {
6394                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6395                                                         }
6396                                                 } else {
6397                                                         if ((net->error_count > net->pf_threshold) &&
6398                                                             (net->error_count <= net->failure_threshold)) {
6399                                                                 net->dest_state |= SCTP_ADDR_PF;
6400                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6401                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6402                                                                     stcb->sctp_ep, stcb, net,
6403                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6404                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6405                                                         }
6406                                                 }
6407                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6408                                                         if (net->error_count > net->failure_threshold) {
6409                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6410                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6411                                                         }
6412                                                 } else {
6413                                                         if (net->error_count <= net->failure_threshold) {
6414                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6415                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6416                                                         }
6417                                                 }
6418                                         }
6419                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6420                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6421                                 }
6422                                 SCTP_TCB_UNLOCK(stcb);
6423                         } else {
6424                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6425                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6426                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6427                                         SCTP_INP_WLOCK(inp);
6428                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6429                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6430                                         SCTP_INP_WUNLOCK(inp);
6431                                 } else {
6432                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6433                                         error = EINVAL;
6434                                 }
6435                         }
6436                         break;
6437                 }
6438         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6439                 {
6440                         struct sctp_udpencaps *encaps;
6441                         struct sctp_nets *net;
6442                         struct sockaddr *addr;
6443
6444 #if defined(INET) && defined(INET6)
6445                         struct sockaddr_in sin_store;
6446
6447 #endif
6448
6449                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6450                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6451
6452 #if defined(INET) && defined(INET6)
6453                         if (encaps->sue_address.ss_family == AF_INET6) {
6454                                 struct sockaddr_in6 *sin6;
6455
6456                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6457                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6458                                         in6_sin6_2_sin(&sin_store, sin6);
6459                                         addr = (struct sockaddr *)&sin_store;
6460                                 } else {
6461                                         addr = (struct sockaddr *)&encaps->sue_address;
6462                                 }
6463                         } else {
6464                                 addr = (struct sockaddr *)&encaps->sue_address;
6465                         }
6466 #else
6467                         addr = (struct sockaddr *)&encaps->sue_address;
6468 #endif
6469                         if (stcb != NULL) {
6470                                 net = sctp_findnet(stcb, addr);
6471                         } else {
6472                                 /*
6473                                  * We increment here since
6474                                  * sctp_findassociation_ep_addr() wil do a
6475                                  * decrement if it finds the stcb as long as
6476                                  * the locked tcb (last argument) is NOT a
6477                                  * TCB.. aka NULL.
6478                                  */
6479                                 net = NULL;
6480                                 SCTP_INP_INCR_REF(inp);
6481                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6482                                 if (stcb == NULL) {
6483                                         SCTP_INP_DECR_REF(inp);
6484                                 }
6485                         }
6486                         if ((stcb != NULL) && (net == NULL)) {
6487 #ifdef INET
6488                                 if (addr->sa_family == AF_INET) {
6489
6490                                         struct sockaddr_in *sin;
6491
6492                                         sin = (struct sockaddr_in *)addr;
6493                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6494                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6495                                                 SCTP_TCB_UNLOCK(stcb);
6496                                                 error = EINVAL;
6497                                                 break;
6498                                         }
6499                                 } else
6500 #endif
6501 #ifdef INET6
6502                                 if (addr->sa_family == AF_INET6) {
6503                                         struct sockaddr_in6 *sin6;
6504
6505                                         sin6 = (struct sockaddr_in6 *)addr;
6506                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6507                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6508                                                 SCTP_TCB_UNLOCK(stcb);
6509                                                 error = EINVAL;
6510                                                 break;
6511                                         }
6512                                 } else
6513 #endif
6514                                 {
6515                                         error = EAFNOSUPPORT;
6516                                         SCTP_TCB_UNLOCK(stcb);
6517                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6518                                         break;
6519                                 }
6520                         }
6521                         if (stcb != NULL) {
6522                                 if (net != NULL) {
6523                                         net->port = encaps->sue_port;
6524                                 } else {
6525                                         stcb->asoc.port = encaps->sue_port;
6526                                 }
6527                                 SCTP_TCB_UNLOCK(stcb);
6528                         } else {
6529                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6530                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6531                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6532                                         SCTP_INP_WLOCK(inp);
6533                                         inp->sctp_ep.port = encaps->sue_port;
6534                                         SCTP_INP_WUNLOCK(inp);
6535                                 } else {
6536                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6537                                         error = EINVAL;
6538                                 }
6539                         }
6540                         break;
6541                 }
6542         case SCTP_ECN_SUPPORTED:
6543                 {
6544                         struct sctp_assoc_value *av;
6545
6546                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6547                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6548
6549                         if (stcb) {
6550                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6551                                 error = EINVAL;
6552                                 SCTP_TCB_UNLOCK(stcb);
6553                         } else {
6554                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6555                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6556                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6557                                         SCTP_INP_WLOCK(inp);
6558                                         if (av->assoc_value == 0) {
6559                                                 inp->ecn_supported = 0;
6560                                         } else {
6561                                                 inp->ecn_supported = 1;
6562                                         }
6563                                         SCTP_INP_WUNLOCK(inp);
6564                                 } else {
6565                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6566                                         error = EINVAL;
6567                                 }
6568                         }
6569                         break;
6570                 }
6571         case SCTP_PR_SUPPORTED:
6572                 {
6573                         struct sctp_assoc_value *av;
6574
6575                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6576                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6577
6578                         if (stcb) {
6579                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6580                                 error = EINVAL;
6581                                 SCTP_TCB_UNLOCK(stcb);
6582                         } else {
6583                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6584                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6585                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6586                                         SCTP_INP_WLOCK(inp);
6587                                         if (av->assoc_value == 0) {
6588                                                 inp->prsctp_supported = 0;
6589                                         } else {
6590                                                 inp->prsctp_supported = 1;
6591                                         }
6592                                         SCTP_INP_WUNLOCK(inp);
6593                                 } else {
6594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6595                                         error = EINVAL;
6596                                 }
6597                         }
6598                         break;
6599                 }
6600         case SCTP_AUTH_SUPPORTED:
6601                 {
6602                         struct sctp_assoc_value *av;
6603
6604                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6605                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6606
6607                         if (stcb) {
6608                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6609                                 error = EINVAL;
6610                                 SCTP_TCB_UNLOCK(stcb);
6611                         } else {
6612                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6613                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6614                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6615                                         if ((av->assoc_value == 0) &&
6616                                             (inp->asconf_supported == 1)) {
6617                                                 /*
6618                                                  * AUTH is required for
6619                                                  * ASCONF
6620                                                  */
6621                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6622                                                 error = EINVAL;
6623                                         } else {
6624                                                 SCTP_INP_WLOCK(inp);
6625                                                 if (av->assoc_value == 0) {
6626                                                         inp->auth_supported = 0;
6627                                                 } else {
6628                                                         inp->auth_supported = 1;
6629                                                 }
6630                                                 SCTP_INP_WUNLOCK(inp);
6631                                         }
6632                                 } else {
6633                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6634                                         error = EINVAL;
6635                                 }
6636                         }
6637                         break;
6638                 }
6639         case SCTP_ASCONF_SUPPORTED:
6640                 {
6641                         struct sctp_assoc_value *av;
6642
6643                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6644                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6645
6646                         if (stcb) {
6647                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6648                                 error = EINVAL;
6649                                 SCTP_TCB_UNLOCK(stcb);
6650                         } else {
6651                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6652                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6653                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6654                                         if ((av->assoc_value != 0) &&
6655                                             (inp->auth_supported == 0)) {
6656                                                 /*
6657                                                  * AUTH is required for
6658                                                  * ASCONF
6659                                                  */
6660                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6661                                                 error = EINVAL;
6662                                         } else {
6663                                                 SCTP_INP_WLOCK(inp);
6664                                                 if (av->assoc_value == 0) {
6665                                                         inp->asconf_supported = 0;
6666                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6667                                                             inp->sctp_ep.local_auth_chunks);
6668                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6669                                                             inp->sctp_ep.local_auth_chunks);
6670                                                 } else {
6671                                                         inp->asconf_supported = 1;
6672                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6673                                                             inp->sctp_ep.local_auth_chunks);
6674                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6675                                                             inp->sctp_ep.local_auth_chunks);
6676                                                 }
6677                                                 SCTP_INP_WUNLOCK(inp);
6678                                         }
6679                                 } else {
6680                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6681                                         error = EINVAL;
6682                                 }
6683                         }
6684                         break;
6685                 }
6686         case SCTP_RECONFIG_SUPPORTED:
6687                 {
6688                         struct sctp_assoc_value *av;
6689
6690                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6691                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6692
6693                         if (stcb) {
6694                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6695                                 error = EINVAL;
6696                                 SCTP_TCB_UNLOCK(stcb);
6697                         } else {
6698                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6699                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6700                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6701                                         SCTP_INP_WLOCK(inp);
6702                                         if (av->assoc_value == 0) {
6703                                                 inp->reconfig_supported = 0;
6704                                         } else {
6705                                                 inp->reconfig_supported = 1;
6706                                         }
6707                                         SCTP_INP_WUNLOCK(inp);
6708                                 } else {
6709                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6710                                         error = EINVAL;
6711                                 }
6712                         }
6713                         break;
6714                 }
6715         case SCTP_NRSACK_SUPPORTED:
6716                 {
6717                         struct sctp_assoc_value *av;
6718
6719                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6720                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6721
6722                         if (stcb) {
6723                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6724                                 error = EINVAL;
6725                                 SCTP_TCB_UNLOCK(stcb);
6726                         } else {
6727                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6728                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6729                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6730                                         SCTP_INP_WLOCK(inp);
6731                                         if (av->assoc_value == 0) {
6732                                                 inp->nrsack_supported = 0;
6733                                         } else {
6734                                                 inp->nrsack_supported = 1;
6735                                         }
6736                                         SCTP_INP_WUNLOCK(inp);
6737                                 } else {
6738                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6739                                         error = EINVAL;
6740                                 }
6741                         }
6742                         break;
6743                 }
6744         case SCTP_PKTDROP_SUPPORTED:
6745                 {
6746                         struct sctp_assoc_value *av;
6747
6748                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6749                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6750
6751                         if (stcb) {
6752                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6753                                 error = EINVAL;
6754                                 SCTP_TCB_UNLOCK(stcb);
6755                         } else {
6756                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6757                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6758                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6759                                         SCTP_INP_WLOCK(inp);
6760                                         if (av->assoc_value == 0) {
6761                                                 inp->pktdrop_supported = 0;
6762                                         } else {
6763                                                 inp->pktdrop_supported = 1;
6764                                         }
6765                                         SCTP_INP_WUNLOCK(inp);
6766                                 } else {
6767                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6768                                         error = EINVAL;
6769                                 }
6770                         }
6771                         break;
6772                 }
6773         case SCTP_MAX_CWND:
6774                 {
6775                         struct sctp_assoc_value *av;
6776                         struct sctp_nets *net;
6777
6778                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6779                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6780
6781                         if (stcb) {
6782                                 stcb->asoc.max_cwnd = av->assoc_value;
6783                                 if (stcb->asoc.max_cwnd > 0) {
6784                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6785                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6786                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6787                                                         net->cwnd = stcb->asoc.max_cwnd;
6788                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6789                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6790                                                         }
6791                                                 }
6792                                         }
6793                                 }
6794                                 SCTP_TCB_UNLOCK(stcb);
6795                         } else {
6796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6798                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6799                                         SCTP_INP_WLOCK(inp);
6800                                         inp->max_cwnd = av->assoc_value;
6801                                         SCTP_INP_WUNLOCK(inp);
6802                                 } else {
6803                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6804                                         error = EINVAL;
6805                                 }
6806                         }
6807                         break;
6808                 }
6809         default:
6810                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6811                 error = ENOPROTOOPT;
6812                 break;
6813         }                       /* end switch (opt) */
6814         return (error);
6815 }
6816
6817 int
6818 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6819 {
6820         void *optval = NULL;
6821         size_t optsize = 0;
6822         void *p;
6823         int error = 0;
6824         struct sctp_inpcb *inp;
6825
6826         if ((sopt->sopt_level == SOL_SOCKET) &&
6827             (sopt->sopt_name == SO_SETFIB)) {
6828                 inp = (struct sctp_inpcb *)so->so_pcb;
6829                 if (inp == NULL) {
6830                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6831                         return (EINVAL);
6832                 }
6833                 SCTP_INP_WLOCK(inp);
6834                 inp->fibnum = so->so_fibnum;
6835                 SCTP_INP_WUNLOCK(inp);
6836                 return (0);
6837         }
6838         if (sopt->sopt_level != IPPROTO_SCTP) {
6839                 /* wrong proto level... send back up to IP */
6840 #ifdef INET6
6841                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6842                         error = ip6_ctloutput(so, sopt);
6843 #endif                          /* INET6 */
6844 #if defined(INET) && defined(INET6)
6845                 else
6846 #endif
6847 #ifdef INET
6848                         error = ip_ctloutput(so, sopt);
6849 #endif
6850                 return (error);
6851         }
6852         optsize = sopt->sopt_valsize;
6853         if (optsize) {
6854                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6855                 if (optval == NULL) {
6856                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6857                         return (ENOBUFS);
6858                 }
6859                 error = sooptcopyin(sopt, optval, optsize, optsize);
6860                 if (error) {
6861                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6862                         goto out;
6863                 }
6864         }
6865         p = (void *)sopt->sopt_td;
6866         if (sopt->sopt_dir == SOPT_SET) {
6867                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6868         } else if (sopt->sopt_dir == SOPT_GET) {
6869                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6870         } else {
6871                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6872                 error = EINVAL;
6873         }
6874         if ((error == 0) && (optval != NULL)) {
6875                 error = sooptcopyout(sopt, optval, optsize);
6876                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6877         } else if (optval != NULL) {
6878                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6879         }
6880 out:
6881         return (error);
6882 }
6883
6884 #ifdef INET
6885 static int
6886 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6887 {
6888         int error = 0;
6889         int create_lock_on = 0;
6890         uint32_t vrf_id;
6891         struct sctp_inpcb *inp;
6892         struct sctp_tcb *stcb = NULL;
6893
6894         inp = (struct sctp_inpcb *)so->so_pcb;
6895         if (inp == NULL) {
6896                 /* I made the same as TCP since we are not setup? */
6897                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6898                 return (ECONNRESET);
6899         }
6900         if (addr == NULL) {
6901                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6902                 return EINVAL;
6903         }
6904         switch (addr->sa_family) {
6905 #ifdef INET6
6906         case AF_INET6:
6907                 {
6908                         struct sockaddr_in6 *sin6p;
6909
6910                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6911                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6912                                 return (EINVAL);
6913                         }
6914                         sin6p = (struct sockaddr_in6 *)addr;
6915                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6916                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6917                                 return (error);
6918                         }
6919                         break;
6920                 }
6921 #endif
6922 #ifdef INET
6923         case AF_INET:
6924                 {
6925                         struct sockaddr_in *sinp;
6926
6927                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6929                                 return (EINVAL);
6930                         }
6931                         sinp = (struct sockaddr_in *)addr;
6932                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6933                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6934                                 return (error);
6935                         }
6936                         break;
6937                 }
6938 #endif
6939         default:
6940                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6941                 return (EAFNOSUPPORT);
6942         }
6943         SCTP_INP_INCR_REF(inp);
6944         SCTP_ASOC_CREATE_LOCK(inp);
6945         create_lock_on = 1;
6946
6947
6948         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6949             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6950                 /* Should I really unlock ? */
6951                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6952                 error = EFAULT;
6953                 goto out_now;
6954         }
6955 #ifdef INET6
6956         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6957             (addr->sa_family == AF_INET6)) {
6958                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6959                 error = EINVAL;
6960                 goto out_now;
6961         }
6962 #endif
6963         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6964             SCTP_PCB_FLAGS_UNBOUND) {
6965                 /* Bind a ephemeral port */
6966                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6967                 if (error) {
6968                         goto out_now;
6969                 }
6970         }
6971         /* Now do we connect? */
6972         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6973             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6974                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6975                 error = EINVAL;
6976                 goto out_now;
6977         }
6978         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6979             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6980                 /* We are already connected AND the TCP model */
6981                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6982                 error = EADDRINUSE;
6983                 goto out_now;
6984         }
6985         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6986                 SCTP_INP_RLOCK(inp);
6987                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6988                 SCTP_INP_RUNLOCK(inp);
6989         } else {
6990                 /*
6991                  * We increment here since sctp_findassociation_ep_addr()
6992                  * will do a decrement if it finds the stcb as long as the
6993                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6994                  */
6995                 SCTP_INP_INCR_REF(inp);
6996                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6997                 if (stcb == NULL) {
6998                         SCTP_INP_DECR_REF(inp);
6999                 } else {
7000                         SCTP_TCB_UNLOCK(stcb);
7001                 }
7002         }
7003         if (stcb != NULL) {
7004                 /* Already have or am bring up an association */
7005                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7006                 error = EALREADY;
7007                 goto out_now;
7008         }
7009         vrf_id = inp->def_vrf_id;
7010         /* We are GOOD to go */
7011         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7012             inp->sctp_ep.pre_open_stream_count,
7013             inp->sctp_ep.port, p);
7014         if (stcb == NULL) {
7015                 /* Gak! no memory */
7016                 goto out_now;
7017         }
7018         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7019                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7020                 /* Set the connected flag so we can queue data */
7021                 soisconnecting(so);
7022         }
7023         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
7024         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7025
7026         /* initialize authentication parameters for the assoc */
7027         sctp_initialize_auth_params(inp, stcb);
7028
7029         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7030         SCTP_TCB_UNLOCK(stcb);
7031 out_now:
7032         if (create_lock_on) {
7033                 SCTP_ASOC_CREATE_UNLOCK(inp);
7034         }
7035         SCTP_INP_DECR_REF(inp);
7036         return (error);
7037 }
7038
7039 #endif
7040
7041 int
7042 sctp_listen(struct socket *so, int backlog, struct thread *p)
7043 {
7044         /*
7045          * Note this module depends on the protocol processing being called
7046          * AFTER any socket level flags and backlog are applied to the
7047          * socket. The traditional way that the socket flags are applied is
7048          * AFTER protocol processing. We have made a change to the
7049          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7050          * place if the socket API for SCTP is to work properly.
7051          */
7052
7053         int error = 0;
7054         struct sctp_inpcb *inp;
7055
7056         inp = (struct sctp_inpcb *)so->so_pcb;
7057         if (inp == NULL) {
7058                 /* I made the same as TCP since we are not setup? */
7059                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7060                 return (ECONNRESET);
7061         }
7062         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7063                 /* See if we have a listener */
7064                 struct sctp_inpcb *tinp;
7065                 union sctp_sockstore store;
7066
7067                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7068                         /* not bound all */
7069                         struct sctp_laddr *laddr;
7070
7071                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7072                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7073                                 switch (store.sa.sa_family) {
7074 #ifdef INET
7075                                 case AF_INET:
7076                                         store.sin.sin_port = inp->sctp_lport;
7077                                         break;
7078 #endif
7079 #ifdef INET6
7080                                 case AF_INET6:
7081                                         store.sin6.sin6_port = inp->sctp_lport;
7082                                         break;
7083 #endif
7084                                 default:
7085                                         break;
7086                                 }
7087                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7088                                 if (tinp && (tinp != inp) &&
7089                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7090                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7091                                     (tinp->sctp_socket->so_qlimit)) {
7092                                         /*
7093                                          * we have a listener already and
7094                                          * its not this inp.
7095                                          */
7096                                         SCTP_INP_DECR_REF(tinp);
7097                                         return (EADDRINUSE);
7098                                 } else if (tinp) {
7099                                         SCTP_INP_DECR_REF(tinp);
7100                                 }
7101                         }
7102                 } else {
7103                         /* Setup a local addr bound all */
7104                         memset(&store, 0, sizeof(store));
7105 #ifdef INET6
7106                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7107                                 store.sa.sa_family = AF_INET6;
7108                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7109                         }
7110 #endif
7111 #ifdef INET
7112                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7113                                 store.sa.sa_family = AF_INET;
7114                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7115                         }
7116 #endif
7117                         switch (store.sa.sa_family) {
7118 #ifdef INET
7119                         case AF_INET:
7120                                 store.sin.sin_port = inp->sctp_lport;
7121                                 break;
7122 #endif
7123 #ifdef INET6
7124                         case AF_INET6:
7125                                 store.sin6.sin6_port = inp->sctp_lport;
7126                                 break;
7127 #endif
7128                         default:
7129                                 break;
7130                         }
7131                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7132                         if (tinp && (tinp != inp) &&
7133                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7134                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7135                             (tinp->sctp_socket->so_qlimit)) {
7136                                 /*
7137                                  * we have a listener already and its not
7138                                  * this inp.
7139                                  */
7140                                 SCTP_INP_DECR_REF(tinp);
7141                                 return (EADDRINUSE);
7142                         } else if (tinp) {
7143                                 SCTP_INP_DECR_REF(tinp);
7144                         }
7145                 }
7146         }
7147         SCTP_INP_RLOCK(inp);
7148 #ifdef SCTP_LOCK_LOGGING
7149         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7150                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7151         }
7152 #endif
7153         SOCK_LOCK(so);
7154         error = solisten_proto_check(so);
7155         SOCK_UNLOCK(so);
7156         if (error) {
7157                 SCTP_INP_RUNLOCK(inp);
7158                 return (error);
7159         }
7160         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7161             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7162                 /*
7163                  * The unlucky case - We are in the tcp pool with this guy.
7164                  * - Someone else is in the main inp slot. - We must move
7165                  * this guy (the listener) to the main slot - We must then
7166                  * move the guy that was listener to the TCP Pool.
7167                  */
7168                 if (sctp_swap_inpcb_for_listen(inp)) {
7169                         SCTP_INP_RUNLOCK(inp);
7170                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7171                         return (EADDRINUSE);
7172                 }
7173         }
7174         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7175             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7176                 /* We are already connected AND the TCP model */
7177                 SCTP_INP_RUNLOCK(inp);
7178                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7179                 return (EADDRINUSE);
7180         }
7181         SCTP_INP_RUNLOCK(inp);
7182         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7183                 /* We must do a bind. */
7184                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7185                         /* bind error, probably perm */
7186                         return (error);
7187                 }
7188         }
7189         SOCK_LOCK(so);
7190         /* It appears for 7.0 and on, we must always call this. */
7191         solisten_proto(so, backlog);
7192         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7193                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7194                 so->so_options &= ~SO_ACCEPTCONN;
7195         }
7196         if (backlog == 0) {
7197                 /* turning off listen */
7198                 so->so_options &= ~SO_ACCEPTCONN;
7199         }
7200         SOCK_UNLOCK(so);
7201         return (error);
7202 }
7203
7204 static int sctp_defered_wakeup_cnt = 0;
7205
7206 int
7207 sctp_accept(struct socket *so, struct sockaddr **addr)
7208 {
7209         struct sctp_tcb *stcb;
7210         struct sctp_inpcb *inp;
7211         union sctp_sockstore store;
7212
7213 #ifdef INET6
7214         int error;
7215
7216 #endif
7217         inp = (struct sctp_inpcb *)so->so_pcb;
7218
7219         if (inp == NULL) {
7220                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7221                 return (ECONNRESET);
7222         }
7223         SCTP_INP_RLOCK(inp);
7224         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7225                 SCTP_INP_RUNLOCK(inp);
7226                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7227                 return (EOPNOTSUPP);
7228         }
7229         if (so->so_state & SS_ISDISCONNECTED) {
7230                 SCTP_INP_RUNLOCK(inp);
7231                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7232                 return (ECONNABORTED);
7233         }
7234         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7235         if (stcb == NULL) {
7236                 SCTP_INP_RUNLOCK(inp);
7237                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7238                 return (ECONNRESET);
7239         }
7240         SCTP_TCB_LOCK(stcb);
7241         SCTP_INP_RUNLOCK(inp);
7242         store = stcb->asoc.primary_destination->ro._l_addr;
7243         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7244         SCTP_TCB_UNLOCK(stcb);
7245         switch (store.sa.sa_family) {
7246 #ifdef INET
7247         case AF_INET:
7248                 {
7249                         struct sockaddr_in *sin;
7250
7251                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7252                         if (sin == NULL)
7253                                 return (ENOMEM);
7254                         sin->sin_family = AF_INET;
7255                         sin->sin_len = sizeof(*sin);
7256                         sin->sin_port = store.sin.sin_port;
7257                         sin->sin_addr = store.sin.sin_addr;
7258                         *addr = (struct sockaddr *)sin;
7259                         break;
7260                 }
7261 #endif
7262 #ifdef INET6
7263         case AF_INET6:
7264                 {
7265                         struct sockaddr_in6 *sin6;
7266
7267                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7268                         if (sin6 == NULL)
7269                                 return (ENOMEM);
7270                         sin6->sin6_family = AF_INET6;
7271                         sin6->sin6_len = sizeof(*sin6);
7272                         sin6->sin6_port = store.sin6.sin6_port;
7273                         sin6->sin6_addr = store.sin6.sin6_addr;
7274                         if ((error = sa6_recoverscope(sin6)) != 0) {
7275                                 SCTP_FREE_SONAME(sin6);
7276                                 return (error);
7277                         }
7278                         *addr = (struct sockaddr *)sin6;
7279                         break;
7280                 }
7281 #endif
7282         default:
7283                 /* TSNH */
7284                 break;
7285         }
7286         /* Wake any delayed sleep action */
7287         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7288                 SCTP_INP_WLOCK(inp);
7289                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7290                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7291                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7292                         SCTP_INP_WUNLOCK(inp);
7293                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7294                         if (sowriteable(inp->sctp_socket)) {
7295                                 sowwakeup_locked(inp->sctp_socket);
7296                         } else {
7297                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7298                         }
7299                         SCTP_INP_WLOCK(inp);
7300                 }
7301                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7302                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7303                         SCTP_INP_WUNLOCK(inp);
7304                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7305                         if (soreadable(inp->sctp_socket)) {
7306                                 sctp_defered_wakeup_cnt++;
7307                                 sorwakeup_locked(inp->sctp_socket);
7308                         } else {
7309                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7310                         }
7311                         SCTP_INP_WLOCK(inp);
7312                 }
7313                 SCTP_INP_WUNLOCK(inp);
7314         }
7315         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7316                 SCTP_TCB_LOCK(stcb);
7317                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7318                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7319         }
7320         return (0);
7321 }
7322
7323 #ifdef INET
7324 int
7325 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7326 {
7327         struct sockaddr_in *sin;
7328         uint32_t vrf_id;
7329         struct sctp_inpcb *inp;
7330         struct sctp_ifa *sctp_ifa;
7331
7332         /*
7333          * Do the malloc first in case it blocks.
7334          */
7335         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7336         if (sin == NULL)
7337                 return (ENOMEM);
7338         sin->sin_family = AF_INET;
7339         sin->sin_len = sizeof(*sin);
7340         inp = (struct sctp_inpcb *)so->so_pcb;
7341         if (!inp) {
7342                 SCTP_FREE_SONAME(sin);
7343                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7344                 return (ECONNRESET);
7345         }
7346         SCTP_INP_RLOCK(inp);
7347         sin->sin_port = inp->sctp_lport;
7348         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7349                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7350                         struct sctp_tcb *stcb;
7351                         struct sockaddr_in *sin_a;
7352                         struct sctp_nets *net;
7353                         int fnd;
7354
7355                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7356                         if (stcb == NULL) {
7357                                 goto notConn;
7358                         }
7359                         fnd = 0;
7360                         sin_a = NULL;
7361                         SCTP_TCB_LOCK(stcb);
7362                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7363                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7364                                 if (sin_a == NULL)
7365                                         /* this will make coverity happy */
7366                                         continue;
7367
7368                                 if (sin_a->sin_family == AF_INET) {
7369                                         fnd = 1;
7370                                         break;
7371                                 }
7372                         }
7373                         if ((!fnd) || (sin_a == NULL)) {
7374                                 /* punt */
7375                                 SCTP_TCB_UNLOCK(stcb);
7376                                 goto notConn;
7377                         }
7378                         vrf_id = inp->def_vrf_id;
7379                         sctp_ifa = sctp_source_address_selection(inp,
7380                             stcb,
7381                             (sctp_route_t *) & net->ro,
7382                             net, 0, vrf_id);
7383                         if (sctp_ifa) {
7384                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7385                                 sctp_free_ifa(sctp_ifa);
7386                         }
7387                         SCTP_TCB_UNLOCK(stcb);
7388                 } else {
7389                         /* For the bound all case you get back 0 */
7390         notConn:
7391                         sin->sin_addr.s_addr = 0;
7392                 }
7393
7394         } else {
7395                 /* Take the first IPv4 address in the list */
7396                 struct sctp_laddr *laddr;
7397                 int fnd = 0;
7398
7399                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7400                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7401                                 struct sockaddr_in *sin_a;
7402
7403                                 sin_a = &laddr->ifa->address.sin;
7404                                 sin->sin_addr = sin_a->sin_addr;
7405                                 fnd = 1;
7406                                 break;
7407                         }
7408                 }
7409                 if (!fnd) {
7410                         SCTP_FREE_SONAME(sin);
7411                         SCTP_INP_RUNLOCK(inp);
7412                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7413                         return (ENOENT);
7414                 }
7415         }
7416         SCTP_INP_RUNLOCK(inp);
7417         (*addr) = (struct sockaddr *)sin;
7418         return (0);
7419 }
7420
7421 int
7422 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7423 {
7424         struct sockaddr_in *sin;
7425         int fnd;
7426         struct sockaddr_in *sin_a;
7427         struct sctp_inpcb *inp;
7428         struct sctp_tcb *stcb;
7429         struct sctp_nets *net;
7430
7431         /* Do the malloc first in case it blocks. */
7432         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7433         if (sin == NULL)
7434                 return (ENOMEM);
7435         sin->sin_family = AF_INET;
7436         sin->sin_len = sizeof(*sin);
7437
7438         inp = (struct sctp_inpcb *)so->so_pcb;
7439         if ((inp == NULL) ||
7440             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7441                 /* UDP type and listeners will drop out here */
7442                 SCTP_FREE_SONAME(sin);
7443                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7444                 return (ENOTCONN);
7445         }
7446         SCTP_INP_RLOCK(inp);
7447         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7448         if (stcb) {
7449                 SCTP_TCB_LOCK(stcb);
7450         }
7451         SCTP_INP_RUNLOCK(inp);
7452         if (stcb == NULL) {
7453                 SCTP_FREE_SONAME(sin);
7454                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7455                 return (ECONNRESET);
7456         }
7457         fnd = 0;
7458         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7459                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7460                 if (sin_a->sin_family == AF_INET) {
7461                         fnd = 1;
7462                         sin->sin_port = stcb->rport;
7463                         sin->sin_addr = sin_a->sin_addr;
7464                         break;
7465                 }
7466         }
7467         SCTP_TCB_UNLOCK(stcb);
7468         if (!fnd) {
7469                 /* No IPv4 address */
7470                 SCTP_FREE_SONAME(sin);
7471                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7472                 return (ENOENT);
7473         }
7474         (*addr) = (struct sockaddr *)sin;
7475         return (0);
7476 }
7477
7478 struct pr_usrreqs sctp_usrreqs = {
7479         .pru_abort = sctp_abort,
7480         .pru_accept = sctp_accept,
7481         .pru_attach = sctp_attach,
7482         .pru_bind = sctp_bind,
7483         .pru_connect = sctp_connect,
7484         .pru_control = in_control,
7485         .pru_close = sctp_close,
7486         .pru_detach = sctp_close,
7487         .pru_sopoll = sopoll_generic,
7488         .pru_flush = sctp_flush,
7489         .pru_disconnect = sctp_disconnect,
7490         .pru_listen = sctp_listen,
7491         .pru_peeraddr = sctp_peeraddr,
7492         .pru_send = sctp_sendm,
7493         .pru_shutdown = sctp_shutdown,
7494         .pru_sockaddr = sctp_ingetaddr,
7495         .pru_sosend = sctp_sosend,
7496         .pru_soreceive = sctp_soreceive
7497 };
7498
7499 #endif