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
  99 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 100 #endif
 101
 102 void
 103 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 104 {
 105         struct sctp_tmit_chunk *chk;
 106         uint16_t overhead;
 107
 108         /* Adjust that too */
 109         stcb->asoc.smallest_mtu = nxtsz;
 110         /* now off to subtract IP_DF flag if needed */
 111         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 112         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 113                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 114         }
 115         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 116                 if ((chk->send_size + overhead) > nxtsz) {
 117                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 118                 }
 119         }
 120         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 121                 if ((chk->send_size + overhead) > nxtsz) {
 122                         /*
 123                          * For this guy we also mark for immediate resend
 124                          * since we sent to big of chunk
 125                          */
 126                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 127                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 128                                 sctp_flight_size_decrease(chk);
 129                                 sctp_total_flight_decrease(stcb, chk);
 130                                 chk->sent = SCTP_DATAGRAM_RESEND;
 131                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 132                                 chk->rec.data.doing_fast_retransmit = 0;
 133                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 134                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 135                                             chk->whoTo->flight_size,
 136                                             chk->book_size,
 137                                             (uint32_t)(uintptr_t)chk->whoTo,
 138                                             chk->rec.data.tsn);
 139                                 }
 140                                 /* Clear any time so NO RTT is being done */
 141                                 chk->do_rtt = 0;
 142                         }
 143                 }
 144         }
 145 }
 146
 147 #ifdef INET
 148 void
 149 sctp_notify(struct sctp_inpcb *inp,
 150     struct sctp_tcb *stcb,
 151     struct sctp_nets *net,
 152     uint8_t icmp_type,
 153     uint8_t icmp_code,
 154     uint16_t ip_len,
 155     uint32_t next_mtu)
 156 {
 157 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 158         struct socket *so;
 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->port) {
 224                         next_mtu -= sizeof(struct udphdr);
 225                 }
 226                 if (net->mtu > next_mtu) {
 227                         net->mtu = next_mtu;
 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                             (uint32_t)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 #endif
 347
 348 static int
 349 sctp_getcred(SYSCTL_HANDLER_ARGS)
 350 {
 351         struct xucred xuc;
 352         struct sockaddr_in addrs[2];
 353         struct sctp_inpcb *inp;
 354         struct sctp_nets *net;
 355         struct sctp_tcb *stcb;
 356         int error;
 357         uint32_t vrf_id;
 358
 359         /* FIX, for non-bsd is this right? */
 360         vrf_id = SCTP_DEFAULT_VRFID;
 361
 362         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 363
 364         if (error)
 365                 return (error);
 366
 367         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 368         if (error)
 369                 return (error);
 370
 371         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 372             sintosa(&addrs[0]),
 373             &inp, &net, 1, vrf_id);
 374         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 375                 if ((inp != NULL) && (stcb == NULL)) {
 376                         /* reduce ref-count */
 377                         SCTP_INP_WLOCK(inp);
 378                         SCTP_INP_DECR_REF(inp);
 379                         goto cred_can_cont;
 380                 }
 381                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 382                 error = ENOENT;
 383                 goto out;
 384         }
 385         SCTP_TCB_UNLOCK(stcb);
 386         /*
 387          * We use the write lock here, only since in the error leg we need
 388          * it. If we used RLOCK, then we would have to
 389          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 390          * Better to use higher wlock.
 391          */
 392         SCTP_INP_WLOCK(inp);
 393 cred_can_cont:
 394         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 395         if (error) {
 396                 SCTP_INP_WUNLOCK(inp);
 397                 goto out;
 398         }
 399         cru2x(inp->sctp_socket->so_cred, &xuc);
 400         SCTP_INP_WUNLOCK(inp);
 401         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 402 out:
 403         return (error);
 404 }
 405
 406 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 407     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 408
 409
 410 #ifdef INET
 411 static void
 412 sctp_abort(struct socket *so)
 413 {
 414         struct sctp_inpcb *inp;
 415         uint32_t flags;
 416
 417         inp = (struct sctp_inpcb *)so->so_pcb;
 418         if (inp == NULL) {
 419                 return;
 420         }
 421 sctp_must_try_again:
 422         flags = inp->sctp_flags;
 423 #ifdef SCTP_LOG_CLOSING
 424         sctp_log_closing(inp, NULL, 17);
 425 #endif
 426         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 427             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 428 #ifdef SCTP_LOG_CLOSING
 429                 sctp_log_closing(inp, NULL, 16);
 430 #endif
 431                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 432                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 433                 SOCK_LOCK(so);
 434                 SCTP_SB_CLEAR(so->so_snd);
 435                 /*
 436                  * same for the rcv ones, they are only here for the
 437                  * accounting/select.
 438                  */
 439                 SCTP_SB_CLEAR(so->so_rcv);
 440
 441                 /* Now null out the reference, we are completely detached. */
 442                 so->so_pcb = NULL;
 443                 SOCK_UNLOCK(so);
 444         } else {
 445                 flags = inp->sctp_flags;
 446                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 447                         goto sctp_must_try_again;
 448                 }
 449         }
 450         return;
 451 }
 452
 453 static int
 454 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 455 {
 456         struct sctp_inpcb *inp;
 457         struct inpcb *ip_inp;
 458         int error;
 459         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 460
 461         inp = (struct sctp_inpcb *)so->so_pcb;
 462         if (inp != NULL) {
 463                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 464                 return (EINVAL);
 465         }
 466         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 467                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 468                 if (error) {
 469                         return (error);
 470                 }
 471         }
 472         error = sctp_inpcb_alloc(so, vrf_id);
 473         if (error) {
 474                 return (error);
 475         }
 476         inp = (struct sctp_inpcb *)so->so_pcb;
 477         SCTP_INP_WLOCK(inp);
 478         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 479         ip_inp = &inp->ip_inp.inp;
 480         ip_inp->inp_vflag |= INP_IPV4;
 481         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 482         SCTP_INP_WUNLOCK(inp);
 483         return (0);
 484 }
 485
 486 static int
 487 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 488 {
 489         struct sctp_inpcb *inp;
 490
 491         inp = (struct sctp_inpcb *)so->so_pcb;
 492         if (inp == NULL) {
 493                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 494                 return (EINVAL);
 495         }
 496         if (addr != NULL) {
 497                 if ((addr->sa_family != AF_INET) ||
 498                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 499                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 500                         return (EINVAL);
 501                 }
 502         }
 503         return (sctp_inpcb_bind(so, addr, NULL, p));
 504 }
 505
 506 #endif
 507 void
 508 sctp_close(struct socket *so)
 509 {
 510         struct sctp_inpcb *inp;
 511         uint32_t flags;
 512
 513         inp = (struct sctp_inpcb *)so->so_pcb;
 514         if (inp == NULL)
 515                 return;
 516
 517         /*
 518          * Inform all the lower layer assoc that we are done.
 519          */
 520 sctp_must_try_again:
 521         flags = inp->sctp_flags;
 522 #ifdef SCTP_LOG_CLOSING
 523         sctp_log_closing(inp, NULL, 17);
 524 #endif
 525         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 526             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 527                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 528                     (so->so_rcv.sb_cc > 0)) {
 529 #ifdef SCTP_LOG_CLOSING
 530                         sctp_log_closing(inp, NULL, 13);
 531 #endif
 532                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 533                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 534                 } else {
 535 #ifdef SCTP_LOG_CLOSING
 536                         sctp_log_closing(inp, NULL, 14);
 537 #endif
 538                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 539                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 540                 }
 541                 /*
 542                  * The socket is now detached, no matter what the state of
 543                  * the SCTP association.
 544                  */
 545                 SOCK_LOCK(so);
 546                 SCTP_SB_CLEAR(so->so_snd);
 547                 /*
 548                  * same for the rcv ones, they are only here for the
 549                  * accounting/select.
 550                  */
 551                 SCTP_SB_CLEAR(so->so_rcv);
 552
 553                 /* Now null out the reference, we are completely detached. */
 554                 so->so_pcb = NULL;
 555                 SOCK_UNLOCK(so);
 556         } else {
 557                 flags = inp->sctp_flags;
 558                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 559                         goto sctp_must_try_again;
 560                 }
 561         }
 562         return;
 563 }
 564
 565
 566 int
 567 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 568     struct mbuf *control, struct thread *p);
 569
 570
 571 int
 572 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 573     struct mbuf *control, struct thread *p)
 574 {
 575         struct sctp_inpcb *inp;
 576         int error;
 577
 578         inp = (struct sctp_inpcb *)so->so_pcb;
 579         if (inp == NULL) {
 580                 if (control) {
 581                         sctp_m_freem(control);
 582                         control = NULL;
 583                 }
 584                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 585                 sctp_m_freem(m);
 586                 return (EINVAL);
 587         }
 588         /* Got to have an to address if we are NOT a connected socket */
 589         if ((addr == NULL) &&
 590             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 591             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 592                 goto connected_type;
 593         } else if (addr == NULL) {
 594                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 595                 error = EDESTADDRREQ;
 596                 sctp_m_freem(m);
 597                 if (control) {
 598                         sctp_m_freem(control);
 599                         control = NULL;
 600                 }
 601                 return (error);
 602         }
 603 #ifdef INET6
 604         if (addr->sa_family != AF_INET) {
 605                 /* must be a v4 address! */
 606                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 607                 sctp_m_freem(m);
 608                 if (control) {
 609                         sctp_m_freem(control);
 610                         control = NULL;
 611                 }
 612                 error = EDESTADDRREQ;
 613                 return (error);
 614         }
 615 #endif                          /* INET6 */
 616 connected_type:
 617         /* now what about control */
 618         if (control) {
 619                 if (inp->control) {
 620                         SCTP_PRINTF("huh? control set?\n");
 621                         sctp_m_freem(inp->control);
 622                         inp->control = NULL;
 623                 }
 624                 inp->control = control;
 625         }
 626         /* Place the data */
 627         if (inp->pkt) {
 628                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 629                 inp->pkt_last = m;
 630         } else {
 631                 inp->pkt_last = inp->pkt = m;
 632         }
 633         if (
 634         /* FreeBSD uses a flag passed */
 635             ((flags & PRUS_MORETOCOME) == 0)
 636             ) {
 637                 /*
 638                  * note with the current version this code will only be used
 639                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 640                  * re-defining sosend to use the sctp_sosend. One can
 641                  * optionally switch back to this code (by changing back the
 642                  * definitions) but this is not advisable. This code is used
 643                  * by FreeBSD when sending a file with sendfile() though.
 644                  */
 645                 int ret;
 646
 647                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 648                 inp->pkt = NULL;
 649                 inp->control = NULL;
 650                 return (ret);
 651         } else {
 652                 return (0);
 653         }
 654 }
 655
 656 int
 657 sctp_disconnect(struct socket *so)
 658 {
 659         struct sctp_inpcb *inp;
 660
 661         inp = (struct sctp_inpcb *)so->so_pcb;
 662         if (inp == NULL) {
 663                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 664                 return (ENOTCONN);
 665         }
 666         SCTP_INP_RLOCK(inp);
 667         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 668             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 669                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 670                         /* No connection */
 671                         SCTP_INP_RUNLOCK(inp);
 672                         return (0);
 673                 } else {
 674                         struct sctp_association *asoc;
 675                         struct sctp_tcb *stcb;
 676
 677                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 678                         if (stcb == NULL) {
 679                                 SCTP_INP_RUNLOCK(inp);
 680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 681                                 return (EINVAL);
 682                         }
 683                         SCTP_TCB_LOCK(stcb);
 684                         asoc = &stcb->asoc;
 685                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 686                                 /* We are about to be freed, out of here */
 687                                 SCTP_TCB_UNLOCK(stcb);
 688                                 SCTP_INP_RUNLOCK(inp);
 689                                 return (0);
 690                         }
 691                         if (((so->so_options & SO_LINGER) &&
 692                             (so->so_linger == 0)) ||
 693                             (so->so_rcv.sb_cc > 0)) {
 694                                 if (SCTP_GET_STATE(asoc) !=
 695                                     SCTP_STATE_COOKIE_WAIT) {
 696                                         /* Left with Data unread */
 697                                         struct mbuf *err;
 698
 699                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 700                                         if (err) {
 701                                                 /*
 702                                                  * Fill in the user
 703                                                  * initiated abort
 704                                                  */
 705                                                 struct sctp_paramhdr *ph;
 706
 707                                                 ph = mtod(err, struct sctp_paramhdr *);
 708                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 709                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 710                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 711                                         }
 712                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 713                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 714                                 }
 715                                 SCTP_INP_RUNLOCK(inp);
 716                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 717                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 718                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 719                                 }
 720                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 721                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 722                                 /* No unlock tcb assoc is gone */
 723                                 return (0);
 724                         }
 725                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 726                             TAILQ_EMPTY(&asoc->sent_queue) &&
 727                             (asoc->stream_queue_cnt == 0)) {
 728                                 /* there is nothing queued to send, so done */
 729                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 730                                         goto abort_anyway;
 731                                 }
 732                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 733                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 734                                         /* only send SHUTDOWN 1st time thru */
 735                                         struct sctp_nets *netp;
 736
 737                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 738                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 739                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 740                                         }
 741                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 742                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 743                                         sctp_stop_timers_for_shutdown(stcb);
 744                                         if (stcb->asoc.alternate) {
 745                                                 netp = stcb->asoc.alternate;
 746                                         } else {
 747                                                 netp = stcb->asoc.primary_destination;
 748                                         }
 749                                         sctp_send_shutdown(stcb, netp);
 750                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 751                                             stcb->sctp_ep, stcb, netp);
 752                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 753                                             stcb->sctp_ep, stcb, netp);
 754                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 755                                 }
 756                         } else {
 757                                 /*
 758                                  * we still got (or just got) data to send,
 759                                  * so set SHUTDOWN_PENDING
 760                                  */
 761                                 /*
 762                                  * XXX sockets draft says that SCTP_EOF
 763                                  * should be sent with no data. currently,
 764                                  * we will allow user data to be sent first
 765                                  * and move to SHUTDOWN-PENDING
 766                                  */
 767                                 struct sctp_nets *netp;
 768
 769                                 if (stcb->asoc.alternate) {
 770                                         netp = stcb->asoc.alternate;
 771                                 } else {
 772                                         netp = stcb->asoc.primary_destination;
 773                                 }
 774
 775                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 776                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 777                                     netp);
 778                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 779                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 780                                 }
 781                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 782                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 783                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 784                                         struct mbuf *op_err;
 785
 786                         abort_anyway:
 787                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 788                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 789                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 790                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 791                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 792                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 793                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 794                                         }
 795                                         SCTP_INP_RUNLOCK(inp);
 796                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 797                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 798                                         return (0);
 799                                 } else {
 800                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 801                                 }
 802                         }
 803                         soisdisconnecting(so);
 804                         SCTP_TCB_UNLOCK(stcb);
 805                         SCTP_INP_RUNLOCK(inp);
 806                         return (0);
 807                 }
 808                 /* not reached */
 809         } else {
 810                 /* UDP model does not support this */
 811                 SCTP_INP_RUNLOCK(inp);
 812                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 813                 return (EOPNOTSUPP);
 814         }
 815 }
 816
 817 int
 818 sctp_flush(struct socket *so, int how)
 819 {
 820         /*
 821          * We will just clear out the values and let subsequent close clear
 822          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 823          * they will not be able to read the data, the socket will block
 824          * that from happening.
 825          */
 826         struct sctp_inpcb *inp;
 827
 828         inp = (struct sctp_inpcb *)so->so_pcb;
 829         if (inp == NULL) {
 830                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 831                 return (EINVAL);
 832         }
 833         SCTP_INP_RLOCK(inp);
 834         /* For the 1 to many model this does nothing */
 835         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 836                 SCTP_INP_RUNLOCK(inp);
 837                 return (0);
 838         }
 839         SCTP_INP_RUNLOCK(inp);
 840         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 841                 /*
 842                  * First make sure the sb will be happy, we don't use these
 843                  * except maybe the count
 844                  */
 845                 SCTP_INP_WLOCK(inp);
 846                 SCTP_INP_READ_LOCK(inp);
 847                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 848                 SCTP_INP_READ_UNLOCK(inp);
 849                 SCTP_INP_WUNLOCK(inp);
 850                 so->so_rcv.sb_cc = 0;
 851                 so->so_rcv.sb_mbcnt = 0;
 852                 so->so_rcv.sb_mb = NULL;
 853         }
 854         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 855                 /*
 856                  * First make sure the sb will be happy, we don't use these
 857                  * except maybe the count
 858                  */
 859                 so->so_snd.sb_cc = 0;
 860                 so->so_snd.sb_mbcnt = 0;
 861                 so->so_snd.sb_mb = NULL;
 862
 863         }
 864         return (0);
 865 }
 866
 867 int
 868 sctp_shutdown(struct socket *so)
 869 {
 870         struct sctp_inpcb *inp;
 871
 872         inp = (struct sctp_inpcb *)so->so_pcb;
 873         if (inp == NULL) {
 874                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 875                 return (EINVAL);
 876         }
 877         SCTP_INP_RLOCK(inp);
 878         /* For UDP model this is a invalid call */
 879         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 880             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 881                 /* Restore the flags that the soshutdown took away. */
 882                 SOCKBUF_LOCK(&so->so_rcv);
 883                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 884                 SOCKBUF_UNLOCK(&so->so_rcv);
 885                 /* This proc will wakeup for read and do nothing (I hope) */
 886                 SCTP_INP_RUNLOCK(inp);
 887                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 888                 return (EOPNOTSUPP);
 889         } else {
 890                 /*
 891                  * Ok, if we reach here its the TCP model and it is either a
 892                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 893                  * against it.
 894                  */
 895                 struct sctp_tcb *stcb;
 896                 struct sctp_association *asoc;
 897                 struct sctp_nets *netp;
 898
 899                 if ((so->so_state &
 900                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 901                         SCTP_INP_RUNLOCK(inp);
 902                         return (ENOTCONN);
 903                 }
 904                 socantsendmore(so);
 905
 906                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 907                 if (stcb == NULL) {
 908                         /*
 909                          * Ok, we hit the case that the shutdown call was
 910                          * made after an abort or something. Nothing to do
 911                          * now.
 912                          */
 913                         SCTP_INP_RUNLOCK(inp);
 914                         return (0);
 915                 }
 916                 SCTP_TCB_LOCK(stcb);
 917                 asoc = &stcb->asoc;
 918                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 919                         SCTP_TCB_UNLOCK(stcb);
 920                         SCTP_INP_RUNLOCK(inp);
 921                         return (0);
 922                 }
 923                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 924                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 925                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 926                         /*
 927                          * If we are not in or before ESTABLISHED, there is
 928                          * no protocol action required.
 929                          */
 930                         SCTP_TCB_UNLOCK(stcb);
 931                         SCTP_INP_RUNLOCK(inp);
 932                         return (0);
 933                 }
 934                 if (stcb->asoc.alternate) {
 935                         netp = stcb->asoc.alternate;
 936                 } else {
 937                         netp = stcb->asoc.primary_destination;
 938                 }
 939                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 940                     TAILQ_EMPTY(&asoc->send_queue) &&
 941                     TAILQ_EMPTY(&asoc->sent_queue) &&
 942                     (asoc->stream_queue_cnt == 0)) {
 943                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 944                                 goto abort_anyway;
 945                         }
 946                         /* there is nothing queued to send, so I'm done... */
 947                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 948                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 949                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 950                         sctp_stop_timers_for_shutdown(stcb);
 951                         sctp_send_shutdown(stcb, netp);
 952                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 953                             stcb->sctp_ep, stcb, netp);
 954                 } else {
 955                         /*
 956                          * We still got (or just got) data to send, so set
 957                          * SHUTDOWN_PENDING.
 958                          */
 959                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 960                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 961                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 962                         }
 963                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 964                             TAILQ_EMPTY(&asoc->sent_queue) &&
 965                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 966                                 struct mbuf *op_err;
 967
 968                 abort_anyway:
 969                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 970                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 971                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 972                                     op_err, SCTP_SO_LOCKED);
 973                                 SCTP_INP_RUNLOCK(inp);
 974                                 return (0);
 975                         }
 976                 }
 977                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 978                 /*
 979                  * XXX: Why do this in the case where we have still data
 980                  * queued?
 981                  */
 982                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 983                 SCTP_TCB_UNLOCK(stcb);
 984                 SCTP_INP_RUNLOCK(inp);
 985                 return (0);
 986         }
 987 }
 988
 989 /*
 990  * copies a "user" presentable address and removes embedded scope, etc.
 991  * returns 0 on success, 1 on error
 992  */
 993 static uint32_t
 994 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 995 {
 996 #ifdef INET6
 997         struct sockaddr_in6 lsa6;
 998
 999         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1000             &lsa6);
1001 #endif
1002         memcpy(ss, sa, sa->sa_len);
1003         return (0);
1004 }
1005
1006
1007
1008 /*
1009  * NOTE: assumes addr lock is held
1010  */
1011 static size_t
1012 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1013     struct sctp_tcb *stcb,
1014     size_t limit,
1015     struct sockaddr_storage *sas,
1016     uint32_t vrf_id)
1017 {
1018         struct sctp_ifn *sctp_ifn;
1019         struct sctp_ifa *sctp_ifa;
1020         size_t actual;
1021         int loopback_scope;
1022 #if defined(INET)
1023         int ipv4_local_scope, ipv4_addr_legal;
1024 #endif
1025 #if defined(INET6)
1026         int local_scope, site_scope, ipv6_addr_legal;
1027 #endif
1028         struct sctp_vrf *vrf;
1029
1030         actual = 0;
1031         if (limit <= 0)
1032                 return (actual);
1033
1034         if (stcb) {
1035                 /* Turn on all the appropriate scope */
1036                 loopback_scope = stcb->asoc.scope.loopback_scope;
1037 #if defined(INET)
1038                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1039                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1040 #endif
1041 #if defined(INET6)
1042                 local_scope = stcb->asoc.scope.local_scope;
1043                 site_scope = stcb->asoc.scope.site_scope;
1044                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1045 #endif
1046         } else {
1047                 /* Use generic values for endpoints. */
1048                 loopback_scope = 1;
1049 #if defined(INET)
1050                 ipv4_local_scope = 1;
1051 #endif
1052 #if defined(INET6)
1053                 local_scope = 1;
1054                 site_scope = 1;
1055 #endif
1056                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1057 #if defined(INET6)
1058                         ipv6_addr_legal = 1;
1059 #endif
1060 #if defined(INET)
1061                         if (SCTP_IPV6_V6ONLY(inp)) {
1062                                 ipv4_addr_legal = 0;
1063                         } else {
1064                                 ipv4_addr_legal = 1;
1065                         }
1066 #endif
1067                 } else {
1068 #if defined(INET6)
1069                         ipv6_addr_legal = 0;
1070 #endif
1071 #if defined(INET)
1072                         ipv4_addr_legal = 1;
1073 #endif
1074                 }
1075         }
1076         vrf = sctp_find_vrf(vrf_id);
1077         if (vrf == NULL) {
1078                 return (0);
1079         }
1080         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1081                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1082                         if ((loopback_scope == 0) &&
1083                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1084                                 /* Skip loopback if loopback_scope not set */
1085                                 continue;
1086                         }
1087                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1088                                 if (stcb) {
1089                                         /*
1090                                          * For the BOUND-ALL case, the list
1091                                          * associated with a TCB is Always
1092                                          * considered a reverse list.. i.e.
1093                                          * it lists addresses that are NOT
1094                                          * part of the association. If this
1095                                          * is one of those we must skip it.
1096                                          */
1097                                         if (sctp_is_addr_restricted(stcb,
1098                                             sctp_ifa)) {
1099                                                 continue;
1100                                         }
1101                                 }
1102                                 switch (sctp_ifa->address.sa.sa_family) {
1103 #ifdef INET
1104                                 case AF_INET:
1105                                         if (ipv4_addr_legal) {
1106                                                 struct sockaddr_in *sin;
1107
1108                                                 sin = &sctp_ifa->address.sin;
1109                                                 if (sin->sin_addr.s_addr == 0) {
1110                                                         /*
1111                                                          * we skip
1112                                                          * unspecifed
1113                                                          * addresses
1114                                                          */
1115                                                         continue;
1116                                                 }
1117                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1118                                                     &sin->sin_addr) != 0) {
1119                                                         continue;
1120                                                 }
1121                                                 if ((ipv4_local_scope == 0) &&
1122                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1123                                                         continue;
1124                                                 }
1125 #ifdef INET6
1126                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1127                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1128                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1129                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1130                                                         actual += sizeof(struct sockaddr_in6);
1131                                                 } else {
1132 #endif
1133                                                         memcpy(sas, sin, sizeof(*sin));
1134                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1135                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1136                                                         actual += sizeof(*sin);
1137 #ifdef INET6
1138                                                 }
1139 #endif
1140                                                 if (actual >= limit) {
1141                                                         return (actual);
1142                                                 }
1143                                         } else {
1144                                                 continue;
1145                                         }
1146                                         break;
1147 #endif
1148 #ifdef INET6
1149                                 case AF_INET6:
1150                                         if (ipv6_addr_legal) {
1151                                                 struct sockaddr_in6 *sin6;
1152
1153                                                 sin6 = &sctp_ifa->address.sin6;
1154                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1155                                                         /*
1156                                                          * we skip
1157                                                          * unspecifed
1158                                                          * addresses
1159                                                          */
1160                                                         continue;
1161                                                 }
1162                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1163                                                     &sin6->sin6_addr) != 0) {
1164                                                         continue;
1165                                                 }
1166                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1167                                                         if (local_scope == 0)
1168                                                                 continue;
1169                                                         if (sin6->sin6_scope_id == 0) {
1170                                                                 if (sa6_recoverscope(sin6) != 0)
1171                                                                         /*
1172                                                                          *
1173                                                                          * bad
1174                                                                          * link
1175                                                                          *
1176                                                                          * local
1177                                                                          *
1178                                                                          * address
1179                                                                          */
1180                                                                         continue;
1181                                                         }
1182                                                 }
1183                                                 if ((site_scope == 0) &&
1184                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1185                                                         continue;
1186                                                 }
1187                                                 memcpy(sas, sin6, sizeof(*sin6));
1188                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1189                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1190                                                 actual += sizeof(*sin6);
1191                                                 if (actual >= limit) {
1192                                                         return (actual);
1193                                                 }
1194                                         } else {
1195                                                 continue;
1196                                         }
1197                                         break;
1198 #endif
1199                                 default:
1200                                         /* TSNH */
1201                                         break;
1202                                 }
1203                         }
1204                 }
1205         } else {
1206                 struct sctp_laddr *laddr;
1207
1208                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1209                         if (stcb) {
1210                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1211                                         continue;
1212                                 }
1213                         }
1214                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1215                                 continue;
1216                         switch (laddr->ifa->address.sa.sa_family) {
1217 #ifdef INET
1218                         case AF_INET:
1219                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1220                                 break;
1221 #endif
1222 #ifdef INET6
1223                         case AF_INET6:
1224                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1225                                 break;
1226 #endif
1227                         default:
1228                                 /* TSNH */
1229                                 break;
1230                         }
1231                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1232                             laddr->ifa->address.sa.sa_len);
1233                         actual += laddr->ifa->address.sa.sa_len;
1234                         if (actual >= limit) {
1235                                 return (actual);
1236                         }
1237                 }
1238         }
1239         return (actual);
1240 }
1241
1242 static size_t
1243 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1244     struct sctp_tcb *stcb,
1245     size_t limit,
1246     struct sockaddr_storage *sas)
1247 {
1248         size_t size = 0;
1249
1250         SCTP_IPI_ADDR_RLOCK();
1251         /* fill up addresses for the endpoint's default vrf */
1252         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1253             inp->def_vrf_id);
1254         SCTP_IPI_ADDR_RUNLOCK();
1255         return (size);
1256 }
1257
1258 /*
1259  * NOTE: assumes addr lock is held
1260  */
1261 static int
1262 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1263 {
1264         int cnt = 0;
1265         struct sctp_vrf *vrf = NULL;
1266
1267         /*
1268          * In both sub-set bound an bound_all cases we return the MAXIMUM
1269          * number of addresses that you COULD get. In reality the sub-set
1270          * bound may have an exclusion list for a given TCB OR in the
1271          * bound-all case a TCB may NOT include the loopback or other
1272          * addresses as well.
1273          */
1274         vrf = sctp_find_vrf(vrf_id);
1275         if (vrf == NULL) {
1276                 return (0);
1277         }
1278         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1279                 struct sctp_ifn *sctp_ifn;
1280                 struct sctp_ifa *sctp_ifa;
1281
1282                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1283                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1284                                 /* Count them if they are the right type */
1285                                 switch (sctp_ifa->address.sa.sa_family) {
1286 #ifdef INET
1287                                 case AF_INET:
1288 #ifdef INET6
1289                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1290                                                 cnt += sizeof(struct sockaddr_in6);
1291                                         else
1292                                                 cnt += sizeof(struct sockaddr_in);
1293 #else
1294                                         cnt += sizeof(struct sockaddr_in);
1295 #endif
1296                                         break;
1297 #endif
1298 #ifdef INET6
1299                                 case AF_INET6:
1300                                         cnt += sizeof(struct sockaddr_in6);
1301                                         break;
1302 #endif
1303                                 default:
1304                                         break;
1305                                 }
1306                         }
1307                 }
1308         } else {
1309                 struct sctp_laddr *laddr;
1310
1311                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1312                         switch (laddr->ifa->address.sa.sa_family) {
1313 #ifdef INET
1314                         case AF_INET:
1315 #ifdef INET6
1316                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1317                                         cnt += sizeof(struct sockaddr_in6);
1318                                 else
1319                                         cnt += sizeof(struct sockaddr_in);
1320 #else
1321                                 cnt += sizeof(struct sockaddr_in);
1322 #endif
1323                                 break;
1324 #endif
1325 #ifdef INET6
1326                         case AF_INET6:
1327                                 cnt += sizeof(struct sockaddr_in6);
1328                                 break;
1329 #endif
1330                         default:
1331                                 break;
1332                         }
1333                 }
1334         }
1335         return (cnt);
1336 }
1337
1338 static int
1339 sctp_count_max_addresses(struct sctp_inpcb *inp)
1340 {
1341         int cnt = 0;
1342
1343         SCTP_IPI_ADDR_RLOCK();
1344         /* count addresses for the endpoint's default VRF */
1345         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1346         SCTP_IPI_ADDR_RUNLOCK();
1347         return (cnt);
1348 }
1349
1350 static int
1351 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1352     size_t optsize, void *p, int delay)
1353 {
1354         int error = 0;
1355         int creat_lock_on = 0;
1356         struct sctp_tcb *stcb = NULL;
1357         struct sockaddr *sa;
1358         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1359         uint32_t vrf_id;
1360         int bad_addresses = 0;
1361         sctp_assoc_t *a_id;
1362
1363         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1364
1365         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1366             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1367                 /* We are already connected AND the TCP model */
1368                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1369                 return (EADDRINUSE);
1370         }
1371         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1372             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1373                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1374                 return (EINVAL);
1375         }
1376         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1377                 SCTP_INP_RLOCK(inp);
1378                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1379                 SCTP_INP_RUNLOCK(inp);
1380         }
1381         if (stcb) {
1382                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1383                 return (EALREADY);
1384         }
1385         SCTP_INP_INCR_REF(inp);
1386         SCTP_ASOC_CREATE_LOCK(inp);
1387         creat_lock_on = 1;
1388         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1389             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1390                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1391                 error = EFAULT;
1392                 goto out_now;
1393         }
1394         totaddrp = (unsigned int *)optval;
1395         totaddr = *totaddrp;
1396         sa = (struct sockaddr *)(totaddrp + 1);
1397         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1398         if ((stcb != NULL) || bad_addresses) {
1399                 /* Already have or am bring up an association */
1400                 SCTP_ASOC_CREATE_UNLOCK(inp);
1401                 creat_lock_on = 0;
1402                 if (stcb)
1403                         SCTP_TCB_UNLOCK(stcb);
1404                 if (bad_addresses == 0) {
1405                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1406                         error = EALREADY;
1407                 }
1408                 goto out_now;
1409         }
1410 #ifdef INET6
1411         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1412             (num_v6 > 0)) {
1413                 error = EINVAL;
1414                 goto out_now;
1415         }
1416         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1417             (num_v4 > 0)) {
1418                 struct in6pcb *inp6;
1419
1420                 inp6 = (struct in6pcb *)inp;
1421                 if (SCTP_IPV6_V6ONLY(inp6)) {
1422                         /*
1423                          * if IPV6_V6ONLY flag, ignore connections destined
1424                          * to a v4 addr or v4-mapped addr
1425                          */
1426                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1427                         error = EINVAL;
1428                         goto out_now;
1429                 }
1430         }
1431 #endif                          /* INET6 */
1432         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1433             SCTP_PCB_FLAGS_UNBOUND) {
1434                 /* Bind a ephemeral port */
1435                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1436                 if (error) {
1437                         goto out_now;
1438                 }
1439         }
1440         /* FIX ME: do we want to pass in a vrf on the connect call? */
1441         vrf_id = inp->def_vrf_id;
1442
1443
1444         /* We are GOOD to go */
1445         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1446             inp->sctp_ep.pre_open_stream_count,
1447             inp->sctp_ep.port,
1448             (struct thread *)p
1449             );
1450         if (stcb == NULL) {
1451                 /* Gak! no memory */
1452                 goto out_now;
1453         }
1454         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1455                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1456                 /* Set the connected flag so we can queue data */
1457                 soisconnecting(so);
1458         }
1459         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1460         /* move to second address */
1461         switch (sa->sa_family) {
1462 #ifdef INET
1463         case AF_INET:
1464                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1465                 break;
1466 #endif
1467 #ifdef INET6
1468         case AF_INET6:
1469                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1470                 break;
1471 #endif
1472         default:
1473                 break;
1474         }
1475
1476         error = 0;
1477         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1478         /* Fill in the return id */
1479         if (error) {
1480                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1481                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1482                 goto out_now;
1483         }
1484         a_id = (sctp_assoc_t *)optval;
1485         *a_id = sctp_get_associd(stcb);
1486
1487         /* initialize authentication parameters for the assoc */
1488         sctp_initialize_auth_params(inp, stcb);
1489
1490         if (delay) {
1491                 /* doing delayed connection */
1492                 stcb->asoc.delayed_connection = 1;
1493                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1494         } else {
1495                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1496                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1497         }
1498         SCTP_TCB_UNLOCK(stcb);
1499 out_now:
1500         if (creat_lock_on) {
1501                 SCTP_ASOC_CREATE_UNLOCK(inp);
1502         }
1503         SCTP_INP_DECR_REF(inp);
1504         return (error);
1505 }
1506
1507 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1508         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1509             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1510                 SCTP_INP_RLOCK(inp); \
1511                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1512                 if (stcb) { \
1513                         SCTP_TCB_LOCK(stcb); \
1514                 } \
1515                 SCTP_INP_RUNLOCK(inp); \
1516         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1517                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1518                 if (stcb == NULL) { \
1519                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1520                         error = ENOENT; \
1521                         break; \
1522                 } \
1523         } else { \
1524                 stcb = NULL; \
1525         } \
1526 }
1527
1528
1529 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1530         if (size < sizeof(type)) { \
1531                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1532                 error = EINVAL; \
1533                 break; \
1534         } else { \
1535                 destp = (type *)srcp; \
1536         } \
1537 }
1538
1539 static int
1540 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1541     void *p)
1542 {
1543         struct sctp_inpcb *inp = NULL;
1544         int error, val = 0;
1545         struct sctp_tcb *stcb = NULL;
1546
1547         if (optval == NULL) {
1548                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1549                 return (EINVAL);
1550         }
1551         inp = (struct sctp_inpcb *)so->so_pcb;
1552         if (inp == NULL) {
1553                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1554                 return EINVAL;
1555         }
1556         error = 0;
1557
1558         switch (optname) {
1559         case SCTP_NODELAY:
1560         case SCTP_AUTOCLOSE:
1561         case SCTP_EXPLICIT_EOR:
1562         case SCTP_AUTO_ASCONF:
1563         case SCTP_DISABLE_FRAGMENTS:
1564         case SCTP_I_WANT_MAPPED_V4_ADDR:
1565         case SCTP_USE_EXT_RCVINFO:
1566                 SCTP_INP_RLOCK(inp);
1567                 switch (optname) {
1568                 case SCTP_DISABLE_FRAGMENTS:
1569                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1570                         break;
1571                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1572                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1573                         break;
1574                 case SCTP_AUTO_ASCONF:
1575                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1576                                 /* only valid for bound all sockets */
1577                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1578                         } else {
1579                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1580                                 error = EINVAL;
1581                                 goto flags_out;
1582                         }
1583                         break;
1584                 case SCTP_EXPLICIT_EOR:
1585                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1586                         break;
1587                 case SCTP_NODELAY:
1588                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1589                         break;
1590                 case SCTP_USE_EXT_RCVINFO:
1591                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1592                         break;
1593                 case SCTP_AUTOCLOSE:
1594                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1595                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1596                         else
1597                                 val = 0;
1598                         break;
1599
1600                 default:
1601                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1602                         error = ENOPROTOOPT;
1603                 }               /* end switch (sopt->sopt_name) */
1604                 if (*optsize < sizeof(val)) {
1605                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1606                         error = EINVAL;
1607                 }
1608 flags_out:
1609                 SCTP_INP_RUNLOCK(inp);
1610                 if (error == 0) {
1611                         /* return the option value */
1612                         *(int *)optval = val;
1613                         *optsize = sizeof(val);
1614                 }
1615                 break;
1616         case SCTP_GET_PACKET_LOG:
1617                 {
1618 #ifdef  SCTP_PACKET_LOGGING
1619                         uint8_t *target;
1620                         int ret;
1621
1622                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1623                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1624                         *optsize = ret;
1625 #else
1626                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1627                         error = EOPNOTSUPP;
1628 #endif
1629                         break;
1630                 }
1631         case SCTP_REUSE_PORT:
1632                 {
1633                         uint32_t *value;
1634
1635                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1636                                 /* Can't do this for a 1-m socket */
1637                                 error = EINVAL;
1638                                 break;
1639                         }
1640                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1641                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1642                         *optsize = sizeof(uint32_t);
1643                         break;
1644                 }
1645         case SCTP_PARTIAL_DELIVERY_POINT:
1646                 {
1647                         uint32_t *value;
1648
1649                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1650                         *value = inp->partial_delivery_point;
1651                         *optsize = sizeof(uint32_t);
1652                         break;
1653                 }
1654         case SCTP_FRAGMENT_INTERLEAVE:
1655                 {
1656                         uint32_t *value;
1657
1658                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1659                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1660                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1661                                         *value = SCTP_FRAG_LEVEL_2;
1662                                 } else {
1663                                         *value = SCTP_FRAG_LEVEL_1;
1664                                 }
1665                         } else {
1666                                 *value = SCTP_FRAG_LEVEL_0;
1667                         }
1668                         *optsize = sizeof(uint32_t);
1669                         break;
1670                 }
1671         case SCTP_INTERLEAVING_SUPPORTED:
1672                 {
1673                         struct sctp_assoc_value *av;
1674
1675                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1676                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1677
1678                         if (stcb) {
1679                                 av->assoc_value = stcb->asoc.idata_supported;
1680                                 SCTP_TCB_UNLOCK(stcb);
1681                         } else {
1682                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1683                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1684                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1685                                         SCTP_INP_RLOCK(inp);
1686                                         if (inp->idata_supported) {
1687                                                 av->assoc_value = 1;
1688                                         } else {
1689                                                 av->assoc_value = 0;
1690                                         }
1691                                         SCTP_INP_RUNLOCK(inp);
1692                                 } else {
1693                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1694                                         error = EINVAL;
1695                                 }
1696                         }
1697                         if (error == 0) {
1698                                 *optsize = sizeof(struct sctp_assoc_value);
1699                         }
1700                         break;
1701                 }
1702         case SCTP_CMT_ON_OFF:
1703                 {
1704                         struct sctp_assoc_value *av;
1705
1706                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1707                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1708                         if (stcb) {
1709                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1710                                 SCTP_TCB_UNLOCK(stcb);
1711                         } else {
1712                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1713                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1714                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1715                                         SCTP_INP_RLOCK(inp);
1716                                         av->assoc_value = inp->sctp_cmt_on_off;
1717                                         SCTP_INP_RUNLOCK(inp);
1718                                 } else {
1719                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1720                                         error = EINVAL;
1721                                 }
1722                         }
1723                         if (error == 0) {
1724                                 *optsize = sizeof(struct sctp_assoc_value);
1725                         }
1726                         break;
1727                 }
1728         case SCTP_PLUGGABLE_CC:
1729                 {
1730                         struct sctp_assoc_value *av;
1731
1732                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1733                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1734                         if (stcb) {
1735                                 av->assoc_value = stcb->asoc.congestion_control_module;
1736                                 SCTP_TCB_UNLOCK(stcb);
1737                         } else {
1738                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1739                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1740                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1741                                         SCTP_INP_RLOCK(inp);
1742                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1743                                         SCTP_INP_RUNLOCK(inp);
1744                                 } else {
1745                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1746                                         error = EINVAL;
1747                                 }
1748                         }
1749                         if (error == 0) {
1750                                 *optsize = sizeof(struct sctp_assoc_value);
1751                         }
1752                         break;
1753                 }
1754         case SCTP_CC_OPTION:
1755                 {
1756                         struct sctp_cc_option *cc_opt;
1757
1758                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1759                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1760                         if (stcb == NULL) {
1761                                 error = EINVAL;
1762                         } else {
1763                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1764                                         error = ENOTSUP;
1765                                 } else {
1766                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1767                                         *optsize = sizeof(struct sctp_cc_option);
1768                                 }
1769                                 SCTP_TCB_UNLOCK(stcb);
1770                         }
1771                         break;
1772                 }
1773         case SCTP_PLUGGABLE_SS:
1774                 {
1775                         struct sctp_assoc_value *av;
1776
1777                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1778                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1779                         if (stcb) {
1780                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1781                                 SCTP_TCB_UNLOCK(stcb);
1782                         } else {
1783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1785                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1786                                         SCTP_INP_RLOCK(inp);
1787                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1788                                         SCTP_INP_RUNLOCK(inp);
1789                                 } else {
1790                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1791                                         error = EINVAL;
1792                                 }
1793                         }
1794                         if (error == 0) {
1795                                 *optsize = sizeof(struct sctp_assoc_value);
1796                         }
1797                         break;
1798                 }
1799         case SCTP_SS_VALUE:
1800                 {
1801                         struct sctp_stream_value *av;
1802
1803                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1804                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1805                         if (stcb) {
1806                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1807                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1808                                     &av->stream_value) < 0)) {
1809                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1810                                         error = EINVAL;
1811                                 } else {
1812                                         *optsize = sizeof(struct sctp_stream_value);
1813                                 }
1814                                 SCTP_TCB_UNLOCK(stcb);
1815                         } else {
1816                                 /*
1817                                  * Can't get stream value without
1818                                  * association
1819                                  */
1820                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1821                                 error = EINVAL;
1822                         }
1823                         break;
1824                 }
1825         case SCTP_GET_ADDR_LEN:
1826                 {
1827                         struct sctp_assoc_value *av;
1828
1829                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1830                         error = EINVAL;
1831 #ifdef INET
1832                         if (av->assoc_value == AF_INET) {
1833                                 av->assoc_value = sizeof(struct sockaddr_in);
1834                                 error = 0;
1835                         }
1836 #endif
1837 #ifdef INET6
1838                         if (av->assoc_value == AF_INET6) {
1839                                 av->assoc_value = sizeof(struct sockaddr_in6);
1840                                 error = 0;
1841                         }
1842 #endif
1843                         if (error) {
1844                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1845                         } else {
1846                                 *optsize = sizeof(struct sctp_assoc_value);
1847                         }
1848                         break;
1849                 }
1850         case SCTP_GET_ASSOC_NUMBER:
1851                 {
1852                         uint32_t *value, cnt;
1853
1854                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1855                         SCTP_INP_RLOCK(inp);
1856                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1857                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1858                                 /* Can't do this for a 1-1 socket */
1859                                 error = EINVAL;
1860                                 SCTP_INP_RUNLOCK(inp);
1861                                 break;
1862                         }
1863                         cnt = 0;
1864                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1865                                 cnt++;
1866                         }
1867                         SCTP_INP_RUNLOCK(inp);
1868                         *value = cnt;
1869                         *optsize = sizeof(uint32_t);
1870                         break;
1871                 }
1872         case SCTP_GET_ASSOC_ID_LIST:
1873                 {
1874                         struct sctp_assoc_ids *ids;
1875                         uint32_t at;
1876                         size_t limit;
1877
1878                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1879                         SCTP_INP_RLOCK(inp);
1880                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1881                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1882                                 /* Can't do this for a 1-1 socket */
1883                                 error = EINVAL;
1884                                 SCTP_INP_RUNLOCK(inp);
1885                                 break;
1886                         }
1887                         at = 0;
1888                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1889                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1890                                 if (at < limit) {
1891                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1892                                         if (at == 0) {
1893                                                 error = EINVAL;
1894                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1895                                                 break;
1896                                         }
1897                                 } else {
1898                                         error = EINVAL;
1899                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1900                                         break;
1901                                 }
1902                         }
1903                         SCTP_INP_RUNLOCK(inp);
1904                         if (error == 0) {
1905                                 ids->gaids_number_of_ids = at;
1906                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1907                         }
1908                         break;
1909                 }
1910         case SCTP_CONTEXT:
1911                 {
1912                         struct sctp_assoc_value *av;
1913
1914                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1915                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1916
1917                         if (stcb) {
1918                                 av->assoc_value = stcb->asoc.context;
1919                                 SCTP_TCB_UNLOCK(stcb);
1920                         } else {
1921                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1922                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1923                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1924                                         SCTP_INP_RLOCK(inp);
1925                                         av->assoc_value = inp->sctp_context;
1926                                         SCTP_INP_RUNLOCK(inp);
1927                                 } else {
1928                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1929                                         error = EINVAL;
1930                                 }
1931                         }
1932                         if (error == 0) {
1933                                 *optsize = sizeof(struct sctp_assoc_value);
1934                         }
1935                         break;
1936                 }
1937         case SCTP_VRF_ID:
1938                 {
1939                         uint32_t *default_vrfid;
1940
1941                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1942                         *default_vrfid = inp->def_vrf_id;
1943                         *optsize = sizeof(uint32_t);
1944                         break;
1945                 }
1946         case SCTP_GET_ASOC_VRF:
1947                 {
1948                         struct sctp_assoc_value *id;
1949
1950                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1951                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1952                         if (stcb == NULL) {
1953                                 error = EINVAL;
1954                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1955                         } else {
1956                                 id->assoc_value = stcb->asoc.vrf_id;
1957                                 *optsize = sizeof(struct sctp_assoc_value);
1958                         }
1959                         break;
1960                 }
1961         case SCTP_GET_VRF_IDS:
1962                 {
1963                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1964                         error = EOPNOTSUPP;
1965                         break;
1966                 }
1967         case SCTP_GET_NONCE_VALUES:
1968                 {
1969                         struct sctp_get_nonce_values *gnv;
1970
1971                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1972                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1973
1974                         if (stcb) {
1975                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1976                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1977                                 SCTP_TCB_UNLOCK(stcb);
1978                                 *optsize = sizeof(struct sctp_get_nonce_values);
1979                         } else {
1980                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1981                                 error = ENOTCONN;
1982                         }
1983                         break;
1984                 }
1985         case SCTP_DELAYED_SACK:
1986                 {
1987                         struct sctp_sack_info *sack;
1988
1989                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1990                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1991                         if (stcb) {
1992                                 sack->sack_delay = stcb->asoc.delayed_ack;
1993                                 sack->sack_freq = stcb->asoc.sack_freq;
1994                                 SCTP_TCB_UNLOCK(stcb);
1995                         } else {
1996                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1997                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1998                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
1999                                         SCTP_INP_RLOCK(inp);
2000                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2001                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2002                                         SCTP_INP_RUNLOCK(inp);
2003                                 } else {
2004                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2005                                         error = EINVAL;
2006                                 }
2007                         }
2008                         if (error == 0) {
2009                                 *optsize = sizeof(struct sctp_sack_info);
2010                         }
2011                         break;
2012                 }
2013         case SCTP_GET_SNDBUF_USE:
2014                 {
2015                         struct sctp_sockstat *ss;
2016
2017                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2018                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2019
2020                         if (stcb) {
2021                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2022                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2023                                     stcb->asoc.size_on_all_streams);
2024                                 SCTP_TCB_UNLOCK(stcb);
2025                                 *optsize = sizeof(struct sctp_sockstat);
2026                         } else {
2027                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2028                                 error = ENOTCONN;
2029                         }
2030                         break;
2031                 }
2032         case SCTP_MAX_BURST:
2033                 {
2034                         struct sctp_assoc_value *av;
2035
2036                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2037                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2038
2039                         if (stcb) {
2040                                 av->assoc_value = stcb->asoc.max_burst;
2041                                 SCTP_TCB_UNLOCK(stcb);
2042                         } else {
2043                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2044                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2045                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2046                                         SCTP_INP_RLOCK(inp);
2047                                         av->assoc_value = inp->sctp_ep.max_burst;
2048                                         SCTP_INP_RUNLOCK(inp);
2049                                 } else {
2050                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2051                                         error = EINVAL;
2052                                 }
2053                         }
2054                         if (error == 0) {
2055                                 *optsize = sizeof(struct sctp_assoc_value);
2056                         }
2057                         break;
2058                 }
2059         case SCTP_MAXSEG:
2060                 {
2061                         struct sctp_assoc_value *av;
2062                         int ovh;
2063
2064                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2065                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2066
2067                         if (stcb) {
2068                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2069                                 SCTP_TCB_UNLOCK(stcb);
2070                         } else {
2071                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2072                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2073                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2074                                         SCTP_INP_RLOCK(inp);
2075                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2076                                                 ovh = SCTP_MED_OVERHEAD;
2077                                         } else {
2078                                                 ovh = SCTP_MED_V4_OVERHEAD;
2079                                         }
2080                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2081                                                 av->assoc_value = 0;
2082                                         else
2083                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2084                                         SCTP_INP_RUNLOCK(inp);
2085                                 } else {
2086                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2087                                         error = EINVAL;
2088                                 }
2089                         }
2090                         if (error == 0) {
2091                                 *optsize = sizeof(struct sctp_assoc_value);
2092                         }
2093                         break;
2094                 }
2095         case SCTP_GET_STAT_LOG:
2096                 error = sctp_fill_stat_log(optval, optsize);
2097                 break;
2098         case SCTP_EVENTS:
2099                 {
2100                         struct sctp_event_subscribe *events;
2101
2102                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2103                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2104                         SCTP_INP_RLOCK(inp);
2105                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2106                                 events->sctp_data_io_event = 1;
2107
2108                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2109                                 events->sctp_association_event = 1;
2110
2111                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2112                                 events->sctp_address_event = 1;
2113
2114                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2115                                 events->sctp_send_failure_event = 1;
2116
2117                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2118                                 events->sctp_peer_error_event = 1;
2119
2120                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2121                                 events->sctp_shutdown_event = 1;
2122
2123                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2124                                 events->sctp_partial_delivery_event = 1;
2125
2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2127                                 events->sctp_adaptation_layer_event = 1;
2128
2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2130                                 events->sctp_authentication_event = 1;
2131
2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2133                                 events->sctp_sender_dry_event = 1;
2134
2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2136                                 events->sctp_stream_reset_event = 1;
2137                         SCTP_INP_RUNLOCK(inp);
2138                         *optsize = sizeof(struct sctp_event_subscribe);
2139                         break;
2140                 }
2141         case SCTP_ADAPTATION_LAYER:
2142                 {
2143                         uint32_t *value;
2144
2145                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2146
2147                         SCTP_INP_RLOCK(inp);
2148                         *value = inp->sctp_ep.adaptation_layer_indicator;
2149                         SCTP_INP_RUNLOCK(inp);
2150                         *optsize = sizeof(uint32_t);
2151                         break;
2152                 }
2153         case SCTP_SET_INITIAL_DBG_SEQ:
2154                 {
2155                         uint32_t *value;
2156
2157                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2158                         SCTP_INP_RLOCK(inp);
2159                         *value = inp->sctp_ep.initial_sequence_debug;
2160                         SCTP_INP_RUNLOCK(inp);
2161                         *optsize = sizeof(uint32_t);
2162                         break;
2163                 }
2164         case SCTP_GET_LOCAL_ADDR_SIZE:
2165                 {
2166                         uint32_t *value;
2167
2168                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2169                         SCTP_INP_RLOCK(inp);
2170                         *value = sctp_count_max_addresses(inp);
2171                         SCTP_INP_RUNLOCK(inp);
2172                         *optsize = sizeof(uint32_t);
2173                         break;
2174                 }
2175         case SCTP_GET_REMOTE_ADDR_SIZE:
2176                 {
2177                         uint32_t *value;
2178                         size_t size;
2179                         struct sctp_nets *net;
2180
2181                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2182                         /* FIXME MT: change to sctp_assoc_value? */
2183                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2184
2185                         if (stcb) {
2186                                 size = 0;
2187                                 /* Count the sizes */
2188                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2189                                         switch (net->ro._l_addr.sa.sa_family) {
2190 #ifdef INET
2191                                         case AF_INET:
2192 #ifdef INET6
2193                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2194                                                         size += sizeof(struct sockaddr_in6);
2195                                                 } else {
2196                                                         size += sizeof(struct sockaddr_in);
2197                                                 }
2198 #else
2199                                                 size += sizeof(struct sockaddr_in);
2200 #endif
2201                                                 break;
2202 #endif
2203 #ifdef INET6
2204                                         case AF_INET6:
2205                                                 size += sizeof(struct sockaddr_in6);
2206                                                 break;
2207 #endif
2208                                         default:
2209                                                 break;
2210                                         }
2211                                 }
2212                                 SCTP_TCB_UNLOCK(stcb);
2213                                 *value = (uint32_t)size;
2214                                 *optsize = sizeof(uint32_t);
2215                         } else {
2216                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2217                                 error = ENOTCONN;
2218                         }
2219                         break;
2220                 }
2221         case SCTP_GET_PEER_ADDRESSES:
2222                 /*
2223                  * Get the address information, an array is passed in to
2224                  * fill up we pack it.
2225                  */
2226                 {
2227                         size_t cpsz, left;
2228                         struct sockaddr_storage *sas;
2229                         struct sctp_nets *net;
2230                         struct sctp_getaddresses *saddr;
2231
2232                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2233                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2234
2235                         if (stcb) {
2236                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2237                                 *optsize = sizeof(struct sctp_getaddresses);
2238                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2239
2240                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2241                                         switch (net->ro._l_addr.sa.sa_family) {
2242 #ifdef INET
2243                                         case AF_INET:
2244 #ifdef INET6
2245                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2246                                                         cpsz = sizeof(struct sockaddr_in6);
2247                                                 } else {
2248                                                         cpsz = sizeof(struct sockaddr_in);
2249                                                 }
2250 #else
2251                                                 cpsz = sizeof(struct sockaddr_in);
2252 #endif
2253                                                 break;
2254 #endif
2255 #ifdef INET6
2256                                         case AF_INET6:
2257                                                 cpsz = sizeof(struct sockaddr_in6);
2258                                                 break;
2259 #endif
2260                                         default:
2261                                                 cpsz = 0;
2262                                                 break;
2263                                         }
2264                                         if (cpsz == 0) {
2265                                                 break;
2266                                         }
2267                                         if (left < cpsz) {
2268                                                 /* not enough room. */
2269                                                 break;
2270                                         }
2271 #if defined(INET) && defined(INET6)
2272                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2273                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2274                                                 /* Must map the address */
2275                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2276                                                     (struct sockaddr_in6 *)sas);
2277                                         } else {
2278                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2279                                         }
2280 #else
2281                                         memcpy(sas, &net->ro._l_addr, cpsz);
2282 #endif
2283                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2284
2285                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2286                                         left -= cpsz;
2287                                         *optsize += cpsz;
2288                                 }
2289                                 SCTP_TCB_UNLOCK(stcb);
2290                         } else {
2291                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2292                                 error = ENOENT;
2293                         }
2294                         break;
2295                 }
2296         case SCTP_GET_LOCAL_ADDRESSES:
2297                 {
2298                         size_t limit, actual;
2299                         struct sockaddr_storage *sas;
2300                         struct sctp_getaddresses *saddr;
2301
2302                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2303                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2304
2305                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2306                         limit = *optsize - sizeof(sctp_assoc_t);
2307                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2308                         if (stcb) {
2309                                 SCTP_TCB_UNLOCK(stcb);
2310                         }
2311                         *optsize = sizeof(struct sockaddr_storage) + actual;
2312                         break;
2313                 }
2314         case SCTP_PEER_ADDR_PARAMS:
2315                 {
2316                         struct sctp_paddrparams *paddrp;
2317                         struct sctp_nets *net;
2318                         struct sockaddr *addr;
2319 #if defined(INET) && defined(INET6)
2320                         struct sockaddr_in sin_store;
2321 #endif
2322
2323                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2324                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2325
2326 #if defined(INET) && defined(INET6)
2327                         if (paddrp->spp_address.ss_family == AF_INET6) {
2328                                 struct sockaddr_in6 *sin6;
2329
2330                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2331                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2332                                         in6_sin6_2_sin(&sin_store, sin6);
2333                                         addr = (struct sockaddr *)&sin_store;
2334                                 } else {
2335                                         addr = (struct sockaddr *)&paddrp->spp_address;
2336                                 }
2337                         } else {
2338                                 addr = (struct sockaddr *)&paddrp->spp_address;
2339                         }
2340 #else
2341                         addr = (struct sockaddr *)&paddrp->spp_address;
2342 #endif
2343                         if (stcb != NULL) {
2344                                 net = sctp_findnet(stcb, addr);
2345                         } else {
2346                                 /*
2347                                  * We increment here since
2348                                  * sctp_findassociation_ep_addr() wil do a
2349                                  * decrement if it finds the stcb as long as
2350                                  * the locked tcb (last argument) is NOT a
2351                                  * TCB.. aka NULL.
2352                                  */
2353                                 net = NULL;
2354                                 SCTP_INP_INCR_REF(inp);
2355                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2356                                 if (stcb == NULL) {
2357                                         SCTP_INP_DECR_REF(inp);
2358                                 }
2359                         }
2360                         if ((stcb != NULL) && (net == NULL)) {
2361 #ifdef INET
2362                                 if (addr->sa_family == AF_INET) {
2363                                         struct sockaddr_in *sin;
2364
2365                                         sin = (struct sockaddr_in *)addr;
2366                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2367                                                 error = EINVAL;
2368                                                 SCTP_TCB_UNLOCK(stcb);
2369                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2370                                                 break;
2371                                         }
2372                                 } else
2373 #endif
2374 #ifdef INET6
2375                                 if (addr->sa_family == AF_INET6) {
2376                                         struct sockaddr_in6 *sin6;
2377
2378                                         sin6 = (struct sockaddr_in6 *)addr;
2379                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2380                                                 error = EINVAL;
2381                                                 SCTP_TCB_UNLOCK(stcb);
2382                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2383                                                 break;
2384                                         }
2385                                 } else
2386 #endif
2387                                 {
2388                                         error = EAFNOSUPPORT;
2389                                         SCTP_TCB_UNLOCK(stcb);
2390                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2391                                         break;
2392                                 }
2393                         }
2394                         if (stcb != NULL) {
2395                                 /* Applies to the specific association */
2396                                 paddrp->spp_flags = 0;
2397                                 if (net != NULL) {
2398                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2399                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2400                                         paddrp->spp_pathmtu = net->mtu;
2401                                         switch (net->ro._l_addr.sa.sa_family) {
2402 #ifdef INET
2403                                         case AF_INET:
2404                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2405                                                 break;
2406 #endif
2407 #ifdef INET6
2408                                         case AF_INET6:
2409                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2410                                                 break;
2411 #endif
2412                                         default:
2413                                                 break;
2414                                         }
2415                                         /* get flags for HB */
2416                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2417                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2418                                         } else {
2419                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2420                                         }
2421                                         /* get flags for PMTU */
2422                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2423                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2424                                         } else {
2425                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2426                                         }
2427                                         if (net->dscp & 0x01) {
2428                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2429                                                 paddrp->spp_flags |= SPP_DSCP;
2430                                         }
2431 #ifdef INET6
2432                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2433                                             (net->flowlabel & 0x80000000)) {
2434                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2435                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2436                                         }
2437 #endif
2438                                 } else {
2439                                         /*
2440                                          * No destination so return default
2441                                          * value
2442                                          */
2443                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2444                                         paddrp->spp_pathmtu = 0;
2445                                         if (stcb->asoc.default_dscp & 0x01) {
2446                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2447                                                 paddrp->spp_flags |= SPP_DSCP;
2448                                         }
2449 #ifdef INET6
2450                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2451                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2452                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2453                                         }
2454 #endif
2455                                         /* default settings should be these */
2456                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2457                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2458                                         } else {
2459                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2460                                         }
2461                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2462                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2463                                         } else {
2464                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2465                                         }
2466                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2467                                 }
2468                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2469                                 SCTP_TCB_UNLOCK(stcb);
2470                         } else {
2471                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2472                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2473                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2474                                         /* Use endpoint defaults */
2475                                         SCTP_INP_RLOCK(inp);
2476                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2477                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2478                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2479                                         /* get inp's default */
2480                                         if (inp->sctp_ep.default_dscp & 0x01) {
2481                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2482                                                 paddrp->spp_flags |= SPP_DSCP;
2483                                         }
2484 #ifdef INET6
2485                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2486                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2487                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2488                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2489                                         }
2490 #endif
2491                                         /* can't return this */
2492                                         paddrp->spp_pathmtu = 0;
2493
2494                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2495                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2496                                         } else {
2497                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2498                                         }
2499                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2500                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2501                                         } else {
2502                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2503                                         }
2504                                         SCTP_INP_RUNLOCK(inp);
2505                                 } else {
2506                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2507                                         error = EINVAL;
2508                                 }
2509                         }
2510                         if (error == 0) {
2511                                 *optsize = sizeof(struct sctp_paddrparams);
2512                         }
2513                         break;
2514                 }
2515         case SCTP_GET_PEER_ADDR_INFO:
2516                 {
2517                         struct sctp_paddrinfo *paddri;
2518                         struct sctp_nets *net;
2519                         struct sockaddr *addr;
2520 #if defined(INET) && defined(INET6)
2521                         struct sockaddr_in sin_store;
2522 #endif
2523
2524                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2525                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2526
2527 #if defined(INET) && defined(INET6)
2528                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2529                                 struct sockaddr_in6 *sin6;
2530
2531                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2532                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2533                                         in6_sin6_2_sin(&sin_store, sin6);
2534                                         addr = (struct sockaddr *)&sin_store;
2535                                 } else {
2536                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2537                                 }
2538                         } else {
2539                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2540                         }
2541 #else
2542                         addr = (struct sockaddr *)&paddri->spinfo_address;
2543 #endif
2544                         if (stcb != NULL) {
2545                                 net = sctp_findnet(stcb, addr);
2546                         } else {
2547                                 /*
2548                                  * We increment here since
2549                                  * sctp_findassociation_ep_addr() wil do a
2550                                  * decrement if it finds the stcb as long as
2551                                  * the locked tcb (last argument) is NOT a
2552                                  * TCB.. aka NULL.
2553                                  */
2554                                 net = NULL;
2555                                 SCTP_INP_INCR_REF(inp);
2556                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2557                                 if (stcb == NULL) {
2558                                         SCTP_INP_DECR_REF(inp);
2559                                 }
2560                         }
2561
2562                         if ((stcb != NULL) && (net != NULL)) {
2563                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2564                                         /* It's unconfirmed */
2565                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2566                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2567                                         /* It's active */
2568                                         paddri->spinfo_state = SCTP_ACTIVE;
2569                                 } else {
2570                                         /* It's inactive */
2571                                         paddri->spinfo_state = SCTP_INACTIVE;
2572                                 }
2573                                 paddri->spinfo_cwnd = net->cwnd;
2574                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2575                                 paddri->spinfo_rto = net->RTO;
2576                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2577                                 paddri->spinfo_mtu = net->mtu;
2578                                 switch (addr->sa_family) {
2579 #if defined(INET)
2580                                 case AF_INET:
2581                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2582                                         break;
2583 #endif
2584 #if defined(INET6)
2585                                 case AF_INET6:
2586                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2587                                         break;
2588 #endif
2589                                 default:
2590                                         break;
2591                                 }
2592                                 SCTP_TCB_UNLOCK(stcb);
2593                                 *optsize = sizeof(struct sctp_paddrinfo);
2594                         } else {
2595                                 if (stcb != NULL) {
2596                                         SCTP_TCB_UNLOCK(stcb);
2597                                 }
2598                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2599                                 error = ENOENT;
2600                         }
2601                         break;
2602                 }
2603         case SCTP_PCB_STATUS:
2604                 {
2605                         struct sctp_pcbinfo *spcb;
2606
2607                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2608                         sctp_fill_pcbinfo(spcb);
2609                         *optsize = sizeof(struct sctp_pcbinfo);
2610                         break;
2611                 }
2612         case SCTP_STATUS:
2613                 {
2614                         struct sctp_nets *net;
2615                         struct sctp_status *sstat;
2616
2617                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2618                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2619
2620                         if (stcb == NULL) {
2621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2622                                 error = EINVAL;
2623                                 break;
2624                         }
2625                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2626                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2627                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2628                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2629                         /*
2630                          * We can't include chunks that have been passed to
2631                          * the socket layer. Only things in queue.
2632                          */
2633                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2634                             stcb->asoc.cnt_on_all_streams);
2635
2636
2637                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2638                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2639                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2640                         memcpy(&sstat->sstat_primary.spinfo_address,
2641                             &stcb->asoc.primary_destination->ro._l_addr,
2642                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2643                         net = stcb->asoc.primary_destination;
2644                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2645                         /*
2646                          * Again the user can get info from sctp_constants.h
2647                          * for what the state of the network is.
2648                          */
2649                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2650                                 /* It's unconfirmed */
2651                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2652                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2653                                 /* It's active */
2654                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2655                         } else {
2656                                 /* It's inactive */
2657                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2658                         }
2659                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2660                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2661                         sstat->sstat_primary.spinfo_rto = net->RTO;
2662                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2663                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2664 #if defined(INET)
2665                         case AF_INET:
2666                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2667                                 break;
2668 #endif
2669 #if defined(INET6)
2670                         case AF_INET6:
2671                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2672                                 break;
2673 #endif
2674                         default:
2675                                 break;
2676                         }
2677                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2678                         SCTP_TCB_UNLOCK(stcb);
2679                         *optsize = sizeof(struct sctp_status);
2680                         break;
2681                 }
2682         case SCTP_RTOINFO:
2683                 {
2684                         struct sctp_rtoinfo *srto;
2685
2686                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2687                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2688
2689                         if (stcb) {
2690                                 srto->srto_initial = stcb->asoc.initial_rto;
2691                                 srto->srto_max = stcb->asoc.maxrto;
2692                                 srto->srto_min = stcb->asoc.minrto;
2693                                 SCTP_TCB_UNLOCK(stcb);
2694                         } else {
2695                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2696                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2697                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2698                                         SCTP_INP_RLOCK(inp);
2699                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2700                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2701                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2702                                         SCTP_INP_RUNLOCK(inp);
2703                                 } else {
2704                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2705                                         error = EINVAL;
2706                                 }
2707                         }
2708                         if (error == 0) {
2709                                 *optsize = sizeof(struct sctp_rtoinfo);
2710                         }
2711                         break;
2712                 }
2713         case SCTP_TIMEOUTS:
2714                 {
2715                         struct sctp_timeouts *stimo;
2716
2717                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2718                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2719
2720                         if (stcb) {
2721                                 stimo->stimo_init = stcb->asoc.timoinit;
2722                                 stimo->stimo_data = stcb->asoc.timodata;
2723                                 stimo->stimo_sack = stcb->asoc.timosack;
2724                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2725                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2726                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2727                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2728                                 SCTP_TCB_UNLOCK(stcb);
2729                                 *optsize = sizeof(struct sctp_timeouts);
2730                         } else {
2731                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2732                                 error = EINVAL;
2733                         }
2734                         break;
2735                 }
2736         case SCTP_ASSOCINFO:
2737                 {
2738                         struct sctp_assocparams *sasoc;
2739
2740                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2741                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2742
2743                         if (stcb) {
2744                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2745                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2746                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2747                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2748                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2749                                 SCTP_TCB_UNLOCK(stcb);
2750                         } else {
2751                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2752                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2753                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2754                                         SCTP_INP_RLOCK(inp);
2755                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2756                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2757                                         sasoc->sasoc_number_peer_destinations = 0;
2758                                         sasoc->sasoc_peer_rwnd = 0;
2759                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2760                                         SCTP_INP_RUNLOCK(inp);
2761                                 } else {
2762                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2763                                         error = EINVAL;
2764                                 }
2765                         }
2766                         if (error == 0) {
2767                                 *optsize = sizeof(struct sctp_assocparams);
2768                         }
2769                         break;
2770                 }
2771         case SCTP_DEFAULT_SEND_PARAM:
2772                 {
2773                         struct sctp_sndrcvinfo *s_info;
2774
2775                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2776                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2777
2778                         if (stcb) {
2779                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2780                                 SCTP_TCB_UNLOCK(stcb);
2781                         } else {
2782                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2783                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2784                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2785                                         SCTP_INP_RLOCK(inp);
2786                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2787                                         SCTP_INP_RUNLOCK(inp);
2788                                 } else {
2789                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2790                                         error = EINVAL;
2791                                 }
2792                         }
2793                         if (error == 0) {
2794                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2795                         }
2796                         break;
2797                 }
2798         case SCTP_INITMSG:
2799                 {
2800                         struct sctp_initmsg *sinit;
2801
2802                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2803                         SCTP_INP_RLOCK(inp);
2804                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2805                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2806                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2807                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2808                         SCTP_INP_RUNLOCK(inp);
2809                         *optsize = sizeof(struct sctp_initmsg);
2810                         break;
2811                 }
2812         case SCTP_PRIMARY_ADDR:
2813                 /* we allow a "get" operation on this */
2814                 {
2815                         struct sctp_setprim *ssp;
2816
2817                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2818                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2819
2820                         if (stcb) {
2821                                 union sctp_sockstore *addr;
2822
2823                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2824                                 switch (addr->sa.sa_family) {
2825 #ifdef INET
2826                                 case AF_INET:
2827 #ifdef INET6
2828                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2829                                                 in6_sin_2_v4mapsin6(&addr->sin,
2830                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2831                                         } else {
2832                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2833                                         }
2834 #else
2835                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2836 #endif
2837                                         break;
2838 #endif
2839 #ifdef INET6
2840                                 case AF_INET6:
2841                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2842                                         break;
2843 #endif
2844                                 default:
2845                                         break;
2846                                 }
2847                                 SCTP_TCB_UNLOCK(stcb);
2848                                 *optsize = sizeof(struct sctp_setprim);
2849                         } else {
2850                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2851                                 error = EINVAL;
2852                         }
2853                         break;
2854                 }
2855         case SCTP_HMAC_IDENT:
2856                 {
2857                         struct sctp_hmacalgo *shmac;
2858                         sctp_hmaclist_t *hmaclist;
2859                         uint32_t size;
2860                         int i;
2861
2862                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2863
2864                         SCTP_INP_RLOCK(inp);
2865                         hmaclist = inp->sctp_ep.local_hmacs;
2866                         if (hmaclist == NULL) {
2867                                 /* no HMACs to return */
2868                                 *optsize = sizeof(*shmac);
2869                                 SCTP_INP_RUNLOCK(inp);
2870                                 break;
2871                         }
2872                         /* is there room for all of the hmac ids? */
2873                         size = sizeof(*shmac) + (hmaclist->num_algo *
2874                             sizeof(shmac->shmac_idents[0]));
2875                         if ((size_t)(*optsize) < size) {
2876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2877                                 error = EINVAL;
2878                                 SCTP_INP_RUNLOCK(inp);
2879                                 break;
2880                         }
2881                         /* copy in the list */
2882                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2883                         for (i = 0; i < hmaclist->num_algo; i++) {
2884                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2885                         }
2886                         SCTP_INP_RUNLOCK(inp);
2887                         *optsize = size;
2888                         break;
2889                 }
2890         case SCTP_AUTH_ACTIVE_KEY:
2891                 {
2892                         struct sctp_authkeyid *scact;
2893
2894                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2895                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2896
2897                         if (stcb) {
2898                                 /* get the active key on the assoc */
2899                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2900                                 SCTP_TCB_UNLOCK(stcb);
2901                         } else {
2902                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2903                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2904                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2905                                         /* get the endpoint active key */
2906                                         SCTP_INP_RLOCK(inp);
2907                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2908                                         SCTP_INP_RUNLOCK(inp);
2909                                 } else {
2910                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2911                                         error = EINVAL;
2912                                 }
2913                         }
2914                         if (error == 0) {
2915                                 *optsize = sizeof(struct sctp_authkeyid);
2916                         }
2917                         break;
2918                 }
2919         case SCTP_LOCAL_AUTH_CHUNKS:
2920                 {
2921                         struct sctp_authchunks *sac;
2922                         sctp_auth_chklist_t *chklist = NULL;
2923                         size_t size = 0;
2924
2925                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2926                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2927
2928                         if (stcb) {
2929                                 /* get off the assoc */
2930                                 chklist = stcb->asoc.local_auth_chunks;
2931                                 /* is there enough space? */
2932                                 size = sctp_auth_get_chklist_size(chklist);
2933                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2934                                         error = EINVAL;
2935                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2936                                 } else {
2937                                         /* copy in the chunks */
2938                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2939                                         sac->gauth_number_of_chunks = (uint32_t)size;
2940                                         *optsize = sizeof(struct sctp_authchunks) + size;
2941                                 }
2942                                 SCTP_TCB_UNLOCK(stcb);
2943                         } else {
2944                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2945                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2946                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2947                                         /* get off the endpoint */
2948                                         SCTP_INP_RLOCK(inp);
2949                                         chklist = inp->sctp_ep.local_auth_chunks;
2950                                         /* is there enough space? */
2951                                         size = sctp_auth_get_chklist_size(chklist);
2952                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2953                                                 error = EINVAL;
2954                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2955                                         } else {
2956                                                 /* copy in the chunks */
2957                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2958                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2959                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2960                                         }
2961                                         SCTP_INP_RUNLOCK(inp);
2962                                 } else {
2963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2964                                         error = EINVAL;
2965                                 }
2966                         }
2967                         break;
2968                 }
2969         case SCTP_PEER_AUTH_CHUNKS:
2970                 {
2971                         struct sctp_authchunks *sac;
2972                         sctp_auth_chklist_t *chklist = NULL;
2973                         size_t size = 0;
2974
2975                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2976                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2977
2978                         if (stcb) {
2979                                 /* get off the assoc */
2980                                 chklist = stcb->asoc.peer_auth_chunks;
2981                                 /* is there enough space? */
2982                                 size = sctp_auth_get_chklist_size(chklist);
2983                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2984                                         error = EINVAL;
2985                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2986                                 } else {
2987                                         /* copy in the chunks */
2988                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2989                                         sac->gauth_number_of_chunks = (uint32_t)size;
2990                                         *optsize = sizeof(struct sctp_authchunks) + size;
2991                                 }
2992                                 SCTP_TCB_UNLOCK(stcb);
2993                         } else {
2994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2995                                 error = ENOENT;
2996                         }
2997                         break;
2998                 }
2999         case SCTP_EVENT:
3000                 {
3001                         struct sctp_event *event;
3002                         uint32_t event_type;
3003
3004                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3005                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3006
3007                         switch (event->se_type) {
3008                         case SCTP_ASSOC_CHANGE:
3009                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3010                                 break;
3011                         case SCTP_PEER_ADDR_CHANGE:
3012                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3013                                 break;
3014                         case SCTP_REMOTE_ERROR:
3015                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3016                                 break;
3017                         case SCTP_SEND_FAILED:
3018                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3019                                 break;
3020                         case SCTP_SHUTDOWN_EVENT:
3021                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3022                                 break;
3023                         case SCTP_ADAPTATION_INDICATION:
3024                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3025                                 break;
3026                         case SCTP_PARTIAL_DELIVERY_EVENT:
3027                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3028                                 break;
3029                         case SCTP_AUTHENTICATION_EVENT:
3030                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3031                                 break;
3032                         case SCTP_STREAM_RESET_EVENT:
3033                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3034                                 break;
3035                         case SCTP_SENDER_DRY_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3037                                 break;
3038                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3039                                 event_type = 0;
3040                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3041                                 error = ENOTSUP;
3042                                 break;
3043                         case SCTP_ASSOC_RESET_EVENT:
3044                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3045                                 break;
3046                         case SCTP_STREAM_CHANGE_EVENT:
3047                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3048                                 break;
3049                         case SCTP_SEND_FAILED_EVENT:
3050                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3051                                 break;
3052                         default:
3053                                 event_type = 0;
3054                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3055                                 error = EINVAL;
3056                                 break;
3057                         }
3058                         if (event_type > 0) {
3059                                 if (stcb) {
3060                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3061                                         SCTP_TCB_UNLOCK(stcb);
3062                                 } else {
3063                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3064                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3065                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3066                                                 SCTP_INP_RLOCK(inp);
3067                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3068                                                 SCTP_INP_RUNLOCK(inp);
3069                                         } else {
3070                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3071                                                 error = EINVAL;
3072                                         }
3073                                 }
3074                         }
3075                         if (error == 0) {
3076                                 *optsize = sizeof(struct sctp_event);
3077                         }
3078                         break;
3079                 }
3080         case SCTP_RECVRCVINFO:
3081                 {
3082                         int onoff;
3083
3084                         if (*optsize < sizeof(int)) {
3085                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3086                                 error = EINVAL;
3087                         } else {
3088                                 SCTP_INP_RLOCK(inp);
3089                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3090                                 SCTP_INP_RUNLOCK(inp);
3091                         }
3092                         if (error == 0) {
3093                                 /* return the option value */
3094                                 *(int *)optval = onoff;
3095                                 *optsize = sizeof(int);
3096                         }
3097                         break;
3098                 }
3099         case SCTP_RECVNXTINFO:
3100                 {
3101                         int onoff;
3102
3103                         if (*optsize < sizeof(int)) {
3104                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3105                                 error = EINVAL;
3106                         } else {
3107                                 SCTP_INP_RLOCK(inp);
3108                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3109                                 SCTP_INP_RUNLOCK(inp);
3110                         }
3111                         if (error == 0) {
3112                                 /* return the option value */
3113                                 *(int *)optval = onoff;
3114                                 *optsize = sizeof(int);
3115                         }
3116                         break;
3117                 }
3118         case SCTP_DEFAULT_SNDINFO:
3119                 {
3120                         struct sctp_sndinfo *info;
3121
3122                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3123                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3124
3125                         if (stcb) {
3126                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3127                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3128                                 info->snd_flags &= 0xfff0;
3129                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3130                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3131                                 SCTP_TCB_UNLOCK(stcb);
3132                         } else {
3133                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3134                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3135                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3136                                         SCTP_INP_RLOCK(inp);
3137                                         info->snd_sid = inp->def_send.sinfo_stream;
3138                                         info->snd_flags = inp->def_send.sinfo_flags;
3139                                         info->snd_flags &= 0xfff0;
3140                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3141                                         info->snd_context = inp->def_send.sinfo_context;
3142                                         SCTP_INP_RUNLOCK(inp);
3143                                 } else {
3144                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3145                                         error = EINVAL;
3146                                 }
3147                         }
3148                         if (error == 0) {
3149                                 *optsize = sizeof(struct sctp_sndinfo);
3150                         }
3151                         break;
3152                 }
3153         case SCTP_DEFAULT_PRINFO:
3154                 {
3155                         struct sctp_default_prinfo *info;
3156
3157                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3158                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3159
3160                         if (stcb) {
3161                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3162                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3163                                 SCTP_TCB_UNLOCK(stcb);
3164                         } else {
3165                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3166                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3167                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3168                                         SCTP_INP_RLOCK(inp);
3169                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3170                                         info->pr_value = inp->def_send.sinfo_timetolive;
3171                                         SCTP_INP_RUNLOCK(inp);
3172                                 } else {
3173                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3174                                         error = EINVAL;
3175                                 }
3176                         }
3177                         if (error == 0) {
3178                                 *optsize = sizeof(struct sctp_default_prinfo);
3179                         }
3180                         break;
3181                 }
3182         case SCTP_PEER_ADDR_THLDS:
3183                 {
3184                         struct sctp_paddrthlds *thlds;
3185                         struct sctp_nets *net;
3186                         struct sockaddr *addr;
3187 #if defined(INET) && defined(INET6)
3188                         struct sockaddr_in sin_store;
3189 #endif
3190
3191                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3192                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3193
3194 #if defined(INET) && defined(INET6)
3195                         if (thlds->spt_address.ss_family == AF_INET6) {
3196                                 struct sockaddr_in6 *sin6;
3197
3198                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3199                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3200                                         in6_sin6_2_sin(&sin_store, sin6);
3201                                         addr = (struct sockaddr *)&sin_store;
3202                                 } else {
3203                                         addr = (struct sockaddr *)&thlds->spt_address;
3204                                 }
3205                         } else {
3206                                 addr = (struct sockaddr *)&thlds->spt_address;
3207                         }
3208 #else
3209                         addr = (struct sockaddr *)&thlds->spt_address;
3210 #endif
3211                         if (stcb != NULL) {
3212                                 net = sctp_findnet(stcb, addr);
3213                         } else {
3214                                 /*
3215                                  * We increment here since
3216                                  * sctp_findassociation_ep_addr() wil do a
3217                                  * decrement if it finds the stcb as long as
3218                                  * the locked tcb (last argument) is NOT a
3219                                  * TCB.. aka NULL.
3220                                  */
3221                                 net = NULL;
3222                                 SCTP_INP_INCR_REF(inp);
3223                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3224                                 if (stcb == NULL) {
3225                                         SCTP_INP_DECR_REF(inp);
3226                                 }
3227                         }
3228                         if ((stcb != NULL) && (net == NULL)) {
3229 #ifdef INET
3230                                 if (addr->sa_family == AF_INET) {
3231                                         struct sockaddr_in *sin;
3232
3233                                         sin = (struct sockaddr_in *)addr;
3234                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3235                                                 error = EINVAL;
3236                                                 SCTP_TCB_UNLOCK(stcb);
3237                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3238                                                 break;
3239                                         }
3240                                 } else
3241 #endif
3242 #ifdef INET6
3243                                 if (addr->sa_family == AF_INET6) {
3244                                         struct sockaddr_in6 *sin6;
3245
3246                                         sin6 = (struct sockaddr_in6 *)addr;
3247                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3248                                                 error = EINVAL;
3249                                                 SCTP_TCB_UNLOCK(stcb);
3250                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3251                                                 break;
3252                                         }
3253                                 } else
3254 #endif
3255                                 {
3256                                         error = EAFNOSUPPORT;
3257                                         SCTP_TCB_UNLOCK(stcb);
3258                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3259                                         break;
3260                                 }
3261                         }
3262                         if (stcb != NULL) {
3263                                 if (net != NULL) {
3264                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3265                                         thlds->spt_pathpfthld = net->pf_threshold;
3266                                         thlds->spt_pathcpthld = 0xffff;
3267                                 } else {
3268                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3269                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3270                                         thlds->spt_pathcpthld = 0xffff;
3271                                 }
3272                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3273                                 SCTP_TCB_UNLOCK(stcb);
3274                         } else {
3275                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3276                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3277                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3278                                         /* Use endpoint defaults */
3279                                         SCTP_INP_RLOCK(inp);
3280                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3281                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3282                                         thlds->spt_pathcpthld = 0xffff;
3283                                         SCTP_INP_RUNLOCK(inp);
3284                                 } else {
3285                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3286                                         error = EINVAL;
3287                                 }
3288                         }
3289                         if (error == 0) {
3290                                 *optsize = sizeof(struct sctp_paddrthlds);
3291                         }
3292                         break;
3293                 }
3294         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3295                 {
3296                         struct sctp_udpencaps *encaps;
3297                         struct sctp_nets *net;
3298                         struct sockaddr *addr;
3299 #if defined(INET) && defined(INET6)
3300                         struct sockaddr_in sin_store;
3301 #endif
3302
3303                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3304                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3305
3306 #if defined(INET) && defined(INET6)
3307                         if (encaps->sue_address.ss_family == AF_INET6) {
3308                                 struct sockaddr_in6 *sin6;
3309
3310                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3311                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3312                                         in6_sin6_2_sin(&sin_store, sin6);
3313                                         addr = (struct sockaddr *)&sin_store;
3314                                 } else {
3315                                         addr = (struct sockaddr *)&encaps->sue_address;
3316                                 }
3317                         } else {
3318                                 addr = (struct sockaddr *)&encaps->sue_address;
3319                         }
3320 #else
3321                         addr = (struct sockaddr *)&encaps->sue_address;
3322 #endif
3323                         if (stcb) {
3324                                 net = sctp_findnet(stcb, addr);
3325                         } else {
3326                                 /*
3327                                  * We increment here since
3328                                  * sctp_findassociation_ep_addr() wil do a
3329                                  * decrement if it finds the stcb as long as
3330                                  * the locked tcb (last argument) is NOT a
3331                                  * TCB.. aka NULL.
3332                                  */
3333                                 net = NULL;
3334                                 SCTP_INP_INCR_REF(inp);
3335                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3336                                 if (stcb == NULL) {
3337                                         SCTP_INP_DECR_REF(inp);
3338                                 }
3339                         }
3340                         if ((stcb != NULL) && (net == NULL)) {
3341 #ifdef INET
3342                                 if (addr->sa_family == AF_INET) {
3343                                         struct sockaddr_in *sin;
3344
3345                                         sin = (struct sockaddr_in *)addr;
3346                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3347                                                 error = EINVAL;
3348                                                 SCTP_TCB_UNLOCK(stcb);
3349                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3350                                                 break;
3351                                         }
3352                                 } else
3353 #endif
3354 #ifdef INET6
3355                                 if (addr->sa_family == AF_INET6) {
3356                                         struct sockaddr_in6 *sin6;
3357
3358                                         sin6 = (struct sockaddr_in6 *)addr;
3359                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3360                                                 error = EINVAL;
3361                                                 SCTP_TCB_UNLOCK(stcb);
3362                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3363                                                 break;
3364                                         }
3365                                 } else
3366 #endif
3367                                 {
3368                                         error = EAFNOSUPPORT;
3369                                         SCTP_TCB_UNLOCK(stcb);
3370                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3371                                         break;
3372                                 }
3373                         }
3374                         if (stcb != NULL) {
3375                                 if (net) {
3376                                         encaps->sue_port = net->port;
3377                                 } else {
3378                                         encaps->sue_port = stcb->asoc.port;
3379                                 }
3380                                 SCTP_TCB_UNLOCK(stcb);
3381                         } else {
3382                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3383                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3384                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3385                                         SCTP_INP_RLOCK(inp);
3386                                         encaps->sue_port = inp->sctp_ep.port;
3387                                         SCTP_INP_RUNLOCK(inp);
3388                                 } else {
3389                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3390                                         error = EINVAL;
3391                                 }
3392                         }
3393                         if (error == 0) {
3394                                 *optsize = sizeof(struct sctp_udpencaps);
3395                         }
3396                         break;
3397                 }
3398         case SCTP_ECN_SUPPORTED:
3399                 {
3400                         struct sctp_assoc_value *av;
3401
3402                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3403                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3404
3405                         if (stcb) {
3406                                 av->assoc_value = stcb->asoc.ecn_supported;
3407                                 SCTP_TCB_UNLOCK(stcb);
3408                         } else {
3409                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3410                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3411                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3412                                         SCTP_INP_RLOCK(inp);
3413                                         av->assoc_value = inp->ecn_supported;
3414                                         SCTP_INP_RUNLOCK(inp);
3415                                 } else {
3416                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3417                                         error = EINVAL;
3418                                 }
3419                         }
3420                         if (error == 0) {
3421                                 *optsize = sizeof(struct sctp_assoc_value);
3422                         }
3423                         break;
3424                 }
3425         case SCTP_PR_SUPPORTED:
3426                 {
3427                         struct sctp_assoc_value *av;
3428
3429                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3430                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3431
3432                         if (stcb) {
3433                                 av->assoc_value = stcb->asoc.prsctp_supported;
3434                                 SCTP_TCB_UNLOCK(stcb);
3435                         } else {
3436                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3437                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3438                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3439                                         SCTP_INP_RLOCK(inp);
3440                                         av->assoc_value = inp->prsctp_supported;
3441                                         SCTP_INP_RUNLOCK(inp);
3442                                 } else {
3443                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3444                                         error = EINVAL;
3445                                 }
3446                         }
3447                         if (error == 0) {
3448                                 *optsize = sizeof(struct sctp_assoc_value);
3449                         }
3450                         break;
3451                 }
3452         case SCTP_AUTH_SUPPORTED:
3453                 {
3454                         struct sctp_assoc_value *av;
3455
3456                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3457                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3458
3459                         if (stcb) {
3460                                 av->assoc_value = stcb->asoc.auth_supported;
3461                                 SCTP_TCB_UNLOCK(stcb);
3462                         } else {
3463                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3464                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3465                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3466                                         SCTP_INP_RLOCK(inp);
3467                                         av->assoc_value = inp->auth_supported;
3468                                         SCTP_INP_RUNLOCK(inp);
3469                                 } else {
3470                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3471                                         error = EINVAL;
3472                                 }
3473                         }
3474                         if (error == 0) {
3475                                 *optsize = sizeof(struct sctp_assoc_value);
3476                         }
3477                         break;
3478                 }
3479         case SCTP_ASCONF_SUPPORTED:
3480                 {
3481                         struct sctp_assoc_value *av;
3482
3483                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3484                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3485
3486                         if (stcb) {
3487                                 av->assoc_value = stcb->asoc.asconf_supported;
3488                                 SCTP_TCB_UNLOCK(stcb);
3489                         } else {
3490                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3491                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3492                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3493                                         SCTP_INP_RLOCK(inp);
3494                                         av->assoc_value = inp->asconf_supported;
3495                                         SCTP_INP_RUNLOCK(inp);
3496                                 } else {
3497                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3498                                         error = EINVAL;
3499                                 }
3500                         }
3501                         if (error == 0) {
3502                                 *optsize = sizeof(struct sctp_assoc_value);
3503                         }
3504                         break;
3505                 }
3506         case SCTP_RECONFIG_SUPPORTED:
3507                 {
3508                         struct sctp_assoc_value *av;
3509
3510                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3511                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3512
3513                         if (stcb) {
3514                                 av->assoc_value = stcb->asoc.reconfig_supported;
3515                                 SCTP_TCB_UNLOCK(stcb);
3516                         } else {
3517                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3518                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3519                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3520                                         SCTP_INP_RLOCK(inp);
3521                                         av->assoc_value = inp->reconfig_supported;
3522                                         SCTP_INP_RUNLOCK(inp);
3523                                 } else {
3524                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3525                                         error = EINVAL;
3526                                 }
3527                         }
3528                         if (error == 0) {
3529                                 *optsize = sizeof(struct sctp_assoc_value);
3530                         }
3531                         break;
3532                 }
3533         case SCTP_NRSACK_SUPPORTED:
3534                 {
3535                         struct sctp_assoc_value *av;
3536
3537                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3538                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3539
3540                         if (stcb) {
3541                                 av->assoc_value = stcb->asoc.nrsack_supported;
3542                                 SCTP_TCB_UNLOCK(stcb);
3543                         } else {
3544                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3545                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3546                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3547                                         SCTP_INP_RLOCK(inp);
3548                                         av->assoc_value = inp->nrsack_supported;
3549                                         SCTP_INP_RUNLOCK(inp);
3550                                 } else {
3551                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3552                                         error = EINVAL;
3553                                 }
3554                         }
3555                         if (error == 0) {
3556                                 *optsize = sizeof(struct sctp_assoc_value);
3557                         }
3558                         break;
3559                 }
3560         case SCTP_PKTDROP_SUPPORTED:
3561                 {
3562                         struct sctp_assoc_value *av;
3563
3564                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3565                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3566
3567                         if (stcb) {
3568                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3569                                 SCTP_TCB_UNLOCK(stcb);
3570                         } else {
3571                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3572                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3573                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3574                                         SCTP_INP_RLOCK(inp);
3575                                         av->assoc_value = inp->pktdrop_supported;
3576                                         SCTP_INP_RUNLOCK(inp);
3577                                 } else {
3578                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3579                                         error = EINVAL;
3580                                 }
3581                         }
3582                         if (error == 0) {
3583                                 *optsize = sizeof(struct sctp_assoc_value);
3584                         }
3585                         break;
3586                 }
3587         case SCTP_ENABLE_STREAM_RESET:
3588                 {
3589                         struct sctp_assoc_value *av;
3590
3591                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3592                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3593
3594                         if (stcb) {
3595                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3596                                 SCTP_TCB_UNLOCK(stcb);
3597                         } else {
3598                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3599                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3600                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3601                                         SCTP_INP_RLOCK(inp);
3602                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3603                                         SCTP_INP_RUNLOCK(inp);
3604                                 } else {
3605                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3606                                         error = EINVAL;
3607                                 }
3608                         }
3609                         if (error == 0) {
3610                                 *optsize = sizeof(struct sctp_assoc_value);
3611                         }
3612                         break;
3613                 }
3614         case SCTP_PR_STREAM_STATUS:
3615                 {
3616                         struct sctp_prstatus *sprstat;
3617                         uint16_t sid;
3618                         uint16_t policy;
3619
3620                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3621                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3622
3623                         sid = sprstat->sprstat_sid;
3624                         policy = sprstat->sprstat_policy;
3625 #if defined(SCTP_DETAILED_STR_STATS)
3626                         if ((stcb != NULL) &&
3627                             (sid < stcb->asoc.streamoutcnt) &&
3628                             (policy != SCTP_PR_SCTP_NONE) &&
3629                             ((policy <= SCTP_PR_SCTP_MAX) ||
3630                             (policy == SCTP_PR_SCTP_ALL))) {
3631                                 if (policy == SCTP_PR_SCTP_ALL) {
3632                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3633                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3634                                 } else {
3635                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3636                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3637                                 }
3638 #else
3639                         if ((stcb != NULL) &&
3640                             (sid < stcb->asoc.streamoutcnt) &&
3641                             (policy == SCTP_PR_SCTP_ALL)) {
3642                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3643                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3644 #endif
3645                                 SCTP_TCB_UNLOCK(stcb);
3646                                 *optsize = sizeof(struct sctp_prstatus);
3647                         } else {
3648                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3649                                 error = EINVAL;
3650                         }
3651                         break;
3652                 }
3653         case SCTP_PR_ASSOC_STATUS:
3654                 {
3655                         struct sctp_prstatus *sprstat;
3656                         uint16_t policy;
3657
3658                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3659                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3660
3661                         policy = sprstat->sprstat_policy;
3662                         if ((stcb != NULL) &&
3663                             (policy != SCTP_PR_SCTP_NONE) &&
3664                             ((policy <= SCTP_PR_SCTP_MAX) ||
3665                             (policy == SCTP_PR_SCTP_ALL))) {
3666                                 if (policy == SCTP_PR_SCTP_ALL) {
3667                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3668                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3669                                 } else {
3670                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3671                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3672                                 }
3673                                 SCTP_TCB_UNLOCK(stcb);
3674                                 *optsize = sizeof(struct sctp_prstatus);
3675                         } else {
3676                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3677                                 error = EINVAL;
3678                         }
3679                         break;
3680                 }
3681         case SCTP_MAX_CWND:
3682                 {
3683                         struct sctp_assoc_value *av;
3684
3685                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3686                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3687
3688                         if (stcb) {
3689                                 av->assoc_value = stcb->asoc.max_cwnd;
3690                                 SCTP_TCB_UNLOCK(stcb);
3691                         } else {
3692                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3693                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3694                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3695                                         SCTP_INP_RLOCK(inp);
3696                                         av->assoc_value = inp->max_cwnd;
3697                                         SCTP_INP_RUNLOCK(inp);
3698                                 } else {
3699                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3700                                         error = EINVAL;
3701                                 }
3702                         }
3703                         if (error == 0) {
3704                                 *optsize = sizeof(struct sctp_assoc_value);
3705                         }
3706                         break;
3707                 }
3708         default:
3709                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3710                 error = ENOPROTOOPT;
3711                 break;
3712         }                       /* end switch (sopt->sopt_name) */
3713         if (error) {
3714                 *optsize = 0;
3715         }
3716         return (error);
3717 }
3718
3719 static int
3720 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3721     void *p)
3722 {
3723         int error, set_opt;
3724         uint32_t *mopt;
3725         struct sctp_tcb *stcb = NULL;
3726         struct sctp_inpcb *inp = NULL;
3727         uint32_t vrf_id;
3728
3729         if (optval == NULL) {
3730                 SCTP_PRINTF("optval is NULL\n");
3731                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3732                 return (EINVAL);
3733         }
3734         inp = (struct sctp_inpcb *)so->so_pcb;
3735         if (inp == NULL) {
3736                 SCTP_PRINTF("inp is NULL?\n");
3737                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3738                 return (EINVAL);
3739         }
3740         vrf_id = inp->def_vrf_id;
3741
3742         error = 0;
3743         switch (optname) {
3744         case SCTP_NODELAY:
3745         case SCTP_AUTOCLOSE:
3746         case SCTP_AUTO_ASCONF:
3747         case SCTP_EXPLICIT_EOR:
3748         case SCTP_DISABLE_FRAGMENTS:
3749         case SCTP_USE_EXT_RCVINFO:
3750         case SCTP_I_WANT_MAPPED_V4_ADDR:
3751                 /* copy in the option value */
3752                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3753                 set_opt = 0;
3754                 if (error)
3755                         break;
3756                 switch (optname) {
3757                 case SCTP_DISABLE_FRAGMENTS:
3758                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3759                         break;
3760                 case SCTP_AUTO_ASCONF:
3761                         /*
3762                          * NOTE: we don't really support this flag
3763                          */
3764                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3765                                 /* only valid for bound all sockets */
3766                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3767                                     (*mopt != 0)) {
3768                                         /* forbidden by admin */
3769                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3770                                         return (EPERM);
3771                                 }
3772                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3773                         } else {
3774                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3775                                 return (EINVAL);
3776                         }
3777                         break;
3778                 case SCTP_EXPLICIT_EOR:
3779                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3780                         break;
3781                 case SCTP_USE_EXT_RCVINFO:
3782                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3783                         break;
3784                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3785                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3786                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3787                         } else {
3788                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3789                                 return (EINVAL);
3790                         }
3791                         break;
3792                 case SCTP_NODELAY:
3793                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3794                         break;
3795                 case SCTP_AUTOCLOSE:
3796                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3797                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3798                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3799                                 return (EINVAL);
3800                         }
3801                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3802                         /*
3803                          * The value is in ticks. Note this does not effect
3804                          * old associations, only new ones.
3805                          */
3806                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3807                         break;
3808                 }
3809                 SCTP_INP_WLOCK(inp);
3810                 if (*mopt != 0) {
3811                         sctp_feature_on(inp, set_opt);
3812                 } else {
3813                         sctp_feature_off(inp, set_opt);
3814                 }
3815                 SCTP_INP_WUNLOCK(inp);
3816                 break;
3817         case SCTP_REUSE_PORT:
3818                 {
3819                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3820                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3821                                 /* Can't set it after we are bound */
3822                                 error = EINVAL;
3823                                 break;
3824                         }
3825                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3826                                 /* Can't do this for a 1-m socket */
3827                                 error = EINVAL;
3828                                 break;
3829                         }
3830                         if (optval)
3831                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3832                         else
3833                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3834                         break;
3835                 }
3836         case SCTP_PARTIAL_DELIVERY_POINT:
3837                 {
3838                         uint32_t *value;
3839
3840                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3841                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3842                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3843                                 error = EINVAL;
3844                                 break;
3845                         }
3846                         inp->partial_delivery_point = *value;
3847                         break;
3848                 }
3849         case SCTP_FRAGMENT_INTERLEAVE:
3850                 /* not yet until we re-write sctp_recvmsg() */
3851                 {
3852                         uint32_t *level;
3853
3854                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3855                         if (*level == SCTP_FRAG_LEVEL_2) {
3856                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3857                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3858                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3859                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3860                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3861                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3862                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3863                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3864
3865                         } else {
3866                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3867                                 error = EINVAL;
3868                         }
3869                         break;
3870                 }
3871         case SCTP_INTERLEAVING_SUPPORTED:
3872                 {
3873                         struct sctp_assoc_value *av;
3874
3875                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3876                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3877
3878                         if (stcb) {
3879                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3880                                 error = EINVAL;
3881                                 SCTP_TCB_UNLOCK(stcb);
3882                         } else {
3883                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3884                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3885                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3886                                         SCTP_INP_WLOCK(inp);
3887                                         if (av->assoc_value == 0) {
3888                                                 inp->idata_supported = 0;
3889                                         } else {
3890                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3891                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3892                                                         inp->idata_supported = 1;
3893                                                 } else {
3894                                                         /*
3895                                                          * Must have Frag
3896                                                          * interleave and
3897                                                          * stream interleave
3898                                                          * on
3899                                                          */
3900                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3901                                                         error = EINVAL;
3902                                                 }
3903                                         }
3904                                         SCTP_INP_WUNLOCK(inp);
3905                                 } else {
3906                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3907                                         error = EINVAL;
3908                                 }
3909                         }
3910                         break;
3911                 }
3912         case SCTP_CMT_ON_OFF:
3913                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3914                         struct sctp_assoc_value *av;
3915
3916                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3917                         if (av->assoc_value > SCTP_CMT_MAX) {
3918                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3919                                 error = EINVAL;
3920                                 break;
3921                         }
3922                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3923                         if (stcb) {
3924                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3925                                 SCTP_TCB_UNLOCK(stcb);
3926                         } else {
3927                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3928                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3929                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3930                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3931                                         SCTP_INP_WLOCK(inp);
3932                                         inp->sctp_cmt_on_off = av->assoc_value;
3933                                         SCTP_INP_WUNLOCK(inp);
3934                                 }
3935                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3936                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3937                                         SCTP_INP_RLOCK(inp);
3938                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3939                                                 SCTP_TCB_LOCK(stcb);
3940                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3941                                                 SCTP_TCB_UNLOCK(stcb);
3942                                         }
3943                                         SCTP_INP_RUNLOCK(inp);
3944                                 }
3945                         }
3946                 } else {
3947                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3948                         error = ENOPROTOOPT;
3949                 }
3950                 break;
3951         case SCTP_PLUGGABLE_CC:
3952                 {
3953                         struct sctp_assoc_value *av;
3954                         struct sctp_nets *net;
3955
3956                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3957                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3958                             (av->assoc_value != SCTP_CC_HSTCP) &&
3959                             (av->assoc_value != SCTP_CC_HTCP) &&
3960                             (av->assoc_value != SCTP_CC_RTCC)) {
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.cc_functions = sctp_cc_functions[av->assoc_value];
3968                                 stcb->asoc.congestion_control_module = av->assoc_value;
3969                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3970                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3971                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3972                                         }
3973                                 }
3974                                 SCTP_TCB_UNLOCK(stcb);
3975                         } else {
3976                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3977                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3978                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3979                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3980                                         SCTP_INP_WLOCK(inp);
3981                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3982                                         SCTP_INP_WUNLOCK(inp);
3983                                 }
3984                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3985                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3986                                         SCTP_INP_RLOCK(inp);
3987                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3988                                                 SCTP_TCB_LOCK(stcb);
3989                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3990                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3991                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3992                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3993                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3994                                                         }
3995                                                 }
3996                                                 SCTP_TCB_UNLOCK(stcb);
3997                                         }
3998                                         SCTP_INP_RUNLOCK(inp);
3999                                 }
4000                         }
4001                         break;
4002                 }
4003         case SCTP_CC_OPTION:
4004                 {
4005                         struct sctp_cc_option *cc_opt;
4006
4007                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4008                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4009                         if (stcb == NULL) {
4010                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4011                                         SCTP_INP_RLOCK(inp);
4012                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4013                                                 SCTP_TCB_LOCK(stcb);
4014                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4015                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4016                                                 }
4017                                                 SCTP_TCB_UNLOCK(stcb);
4018                                         }
4019                                         SCTP_INP_RUNLOCK(inp);
4020                                 } else {
4021                                         error = EINVAL;
4022                                 }
4023                         } else {
4024                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4025                                         error = ENOTSUP;
4026                                 } else {
4027                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4028                                             cc_opt);
4029                                 }
4030                                 SCTP_TCB_UNLOCK(stcb);
4031                         }
4032                         break;
4033                 }
4034         case SCTP_PLUGGABLE_SS:
4035                 {
4036                         struct sctp_assoc_value *av;
4037
4038                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4039                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4040                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4041                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4042                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4043                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4044                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4045                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4046                                 error = EINVAL;
4047                                 break;
4048                         }
4049                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4050                         if (stcb) {
4051                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4052                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4053                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4054                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4055                                 SCTP_TCB_UNLOCK(stcb);
4056                         } else {
4057                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4058                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4059                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4060                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4061                                         SCTP_INP_WLOCK(inp);
4062                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4063                                         SCTP_INP_WUNLOCK(inp);
4064                                 }
4065                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4066                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4067                                         SCTP_INP_RLOCK(inp);
4068                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4069                                                 SCTP_TCB_LOCK(stcb);
4070                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4071                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4072                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4073                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4074                                                 SCTP_TCB_UNLOCK(stcb);
4075                                         }
4076                                         SCTP_INP_RUNLOCK(inp);
4077                                 }
4078                         }
4079                         break;
4080                 }
4081         case SCTP_SS_VALUE:
4082                 {
4083                         struct sctp_stream_value *av;
4084
4085                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4086                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4087                         if (stcb) {
4088                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4089                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4090                                     av->stream_value) < 0)) {
4091                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4092                                         error = EINVAL;
4093                                 }
4094                                 SCTP_TCB_UNLOCK(stcb);
4095                         } else {
4096                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4097                                         SCTP_INP_RLOCK(inp);
4098                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4099                                                 SCTP_TCB_LOCK(stcb);
4100                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4101                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4102                                                             &stcb->asoc,
4103                                                             &stcb->asoc.strmout[av->stream_id],
4104                                                             av->stream_value);
4105                                                 }
4106                                                 SCTP_TCB_UNLOCK(stcb);
4107                                         }
4108                                         SCTP_INP_RUNLOCK(inp);
4109                                 } else {
4110                                         /*
4111                                          * Can't set stream value without
4112                                          * association
4113                                          */
4114                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4115                                         error = EINVAL;
4116                                 }
4117                         }
4118                         break;
4119                 }
4120         case SCTP_CLR_STAT_LOG:
4121                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4122                 error = EOPNOTSUPP;
4123                 break;
4124         case SCTP_CONTEXT:
4125                 {
4126                         struct sctp_assoc_value *av;
4127
4128                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4129                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4130
4131                         if (stcb) {
4132                                 stcb->asoc.context = av->assoc_value;
4133                                 SCTP_TCB_UNLOCK(stcb);
4134                         } else {
4135                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4136                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4137                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4138                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4139                                         SCTP_INP_WLOCK(inp);
4140                                         inp->sctp_context = av->assoc_value;
4141                                         SCTP_INP_WUNLOCK(inp);
4142                                 }
4143                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4144                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4145                                         SCTP_INP_RLOCK(inp);
4146                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4147                                                 SCTP_TCB_LOCK(stcb);
4148                                                 stcb->asoc.context = av->assoc_value;
4149                                                 SCTP_TCB_UNLOCK(stcb);
4150                                         }
4151                                         SCTP_INP_RUNLOCK(inp);
4152                                 }
4153                         }
4154                         break;
4155                 }
4156         case SCTP_VRF_ID:
4157                 {
4158                         uint32_t *default_vrfid;
4159
4160                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4161                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4162                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4163                                 error = EINVAL;
4164                                 break;
4165                         }
4166                         inp->def_vrf_id = *default_vrfid;
4167                         break;
4168                 }
4169         case SCTP_DEL_VRF_ID:
4170                 {
4171                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4172                         error = EOPNOTSUPP;
4173                         break;
4174                 }
4175         case SCTP_ADD_VRF_ID:
4176                 {
4177                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4178                         error = EOPNOTSUPP;
4179                         break;
4180                 }
4181         case SCTP_DELAYED_SACK:
4182                 {
4183                         struct sctp_sack_info *sack;
4184
4185                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4186                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4187                         if (sack->sack_delay) {
4188                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4189                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4190                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4191                                         sack->sack_delay = TICKS_TO_MSEC(1);
4192                                 }
4193                         }
4194                         if (stcb) {
4195                                 if (sack->sack_delay) {
4196                                         stcb->asoc.delayed_ack = sack->sack_delay;
4197                                 }
4198                                 if (sack->sack_freq) {
4199                                         stcb->asoc.sack_freq = sack->sack_freq;
4200                                 }
4201                                 SCTP_TCB_UNLOCK(stcb);
4202                         } else {
4203                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4204                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4205                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4206                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4207                                         SCTP_INP_WLOCK(inp);
4208                                         if (sack->sack_delay) {
4209                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4210                                         }
4211                                         if (sack->sack_freq) {
4212                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4213                                         }
4214                                         SCTP_INP_WUNLOCK(inp);
4215                                 }
4216                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4217                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4218                                         SCTP_INP_RLOCK(inp);
4219                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4220                                                 SCTP_TCB_LOCK(stcb);
4221                                                 if (sack->sack_delay) {
4222                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4223                                                 }
4224                                                 if (sack->sack_freq) {
4225                                                         stcb->asoc.sack_freq = sack->sack_freq;
4226                                                 }
4227                                                 SCTP_TCB_UNLOCK(stcb);
4228                                         }
4229                                         SCTP_INP_RUNLOCK(inp);
4230                                 }
4231                         }
4232                         break;
4233                 }
4234         case SCTP_AUTH_CHUNK:
4235                 {
4236                         struct sctp_authchunk *sauth;
4237
4238                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4239
4240                         SCTP_INP_WLOCK(inp);
4241                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4242                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4243                                 error = EINVAL;
4244                         }
4245                         SCTP_INP_WUNLOCK(inp);
4246                         break;
4247                 }
4248         case SCTP_AUTH_KEY:
4249                 {
4250                         struct sctp_authkey *sca;
4251                         struct sctp_keyhead *shared_keys;
4252                         sctp_sharedkey_t *shared_key;
4253                         sctp_key_t *key = NULL;
4254                         size_t size;
4255
4256                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4257                         if (sca->sca_keylength == 0) {
4258                                 size = optsize - sizeof(struct sctp_authkey);
4259                         } else {
4260                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4261                                         size = sca->sca_keylength;
4262                                 } else {
4263                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4264                                         error = EINVAL;
4265                                         break;
4266                                 }
4267                         }
4268                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4269
4270                         if (stcb) {
4271                                 shared_keys = &stcb->asoc.shared_keys;
4272                                 /* clear the cached keys for this key id */
4273                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4274                                 /*
4275                                  * create the new shared key and
4276                                  * insert/replace it
4277                                  */
4278                                 if (size > 0) {
4279                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4280                                         if (key == NULL) {
4281                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4282                                                 error = ENOMEM;
4283                                                 SCTP_TCB_UNLOCK(stcb);
4284                                                 break;
4285                                         }
4286                                 }
4287                                 shared_key = sctp_alloc_sharedkey();
4288                                 if (shared_key == NULL) {
4289                                         sctp_free_key(key);
4290                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4291                                         error = ENOMEM;
4292                                         SCTP_TCB_UNLOCK(stcb);
4293                                         break;
4294                                 }
4295                                 shared_key->key = key;
4296                                 shared_key->keyid = sca->sca_keynumber;
4297                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4298                                 SCTP_TCB_UNLOCK(stcb);
4299                         } else {
4300                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4301                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4302                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4303                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4304                                         SCTP_INP_WLOCK(inp);
4305                                         shared_keys = &inp->sctp_ep.shared_keys;
4306                                         /*
4307                                          * clear the cached keys on all
4308                                          * assocs for this key id
4309                                          */
4310                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4311                                         /*
4312                                          * create the new shared key and
4313                                          * insert/replace it
4314                                          */
4315                                         if (size > 0) {
4316                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4317                                                 if (key == NULL) {
4318                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4319                                                         error = ENOMEM;
4320                                                         SCTP_INP_WUNLOCK(inp);
4321                                                         break;
4322                                                 }
4323                                         }
4324                                         shared_key = sctp_alloc_sharedkey();
4325                                         if (shared_key == NULL) {
4326                                                 sctp_free_key(key);
4327                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4328                                                 error = ENOMEM;
4329                                                 SCTP_INP_WUNLOCK(inp);
4330                                                 break;
4331                                         }
4332                                         shared_key->key = key;
4333                                         shared_key->keyid = sca->sca_keynumber;
4334                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4335                                         SCTP_INP_WUNLOCK(inp);
4336                                 }
4337                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4338                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4339                                         SCTP_INP_RLOCK(inp);
4340                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4341                                                 SCTP_TCB_LOCK(stcb);
4342                                                 shared_keys = &stcb->asoc.shared_keys;
4343                                                 /*
4344                                                  * clear the cached keys for
4345                                                  * this key id
4346                                                  */
4347                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4348                                                 /*
4349                                                  * create the new shared key
4350                                                  * and insert/replace it
4351                                                  */
4352                                                 if (size > 0) {
4353                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4354                                                         if (key == NULL) {
4355                                                                 SCTP_TCB_UNLOCK(stcb);
4356                                                                 continue;
4357                                                         }
4358                                                 }
4359                                                 shared_key = sctp_alloc_sharedkey();
4360                                                 if (shared_key == NULL) {
4361                                                         sctp_free_key(key);
4362                                                         SCTP_TCB_UNLOCK(stcb);
4363                                                         continue;
4364                                                 }
4365                                                 shared_key->key = key;
4366                                                 shared_key->keyid = sca->sca_keynumber;
4367                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4368                                                 SCTP_TCB_UNLOCK(stcb);
4369                                         }
4370                                         SCTP_INP_RUNLOCK(inp);
4371                                 }
4372                         }
4373                         break;
4374                 }
4375         case SCTP_HMAC_IDENT:
4376                 {
4377                         struct sctp_hmacalgo *shmac;
4378                         sctp_hmaclist_t *hmaclist;
4379                         uint16_t hmacid;
4380                         uint32_t i;
4381
4382                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4383                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4384                             (shmac->shmac_number_of_idents > 0xffff)) {
4385                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4386                                 error = EINVAL;
4387                                 break;
4388                         }
4389                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4390                         if (hmaclist == NULL) {
4391                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4392                                 error = ENOMEM;
4393                                 break;
4394                         }
4395                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4396                                 hmacid = shmac->shmac_idents[i];
4397                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4398                                          /* invalid HMACs were found */ ;
4399                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4400                                         error = EINVAL;
4401                                         sctp_free_hmaclist(hmaclist);
4402                                         goto sctp_set_hmac_done;
4403                                 }
4404                         }
4405                         for (i = 0; i < hmaclist->num_algo; i++) {
4406                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4407                                         /* already in list */
4408                                         break;
4409                                 }
4410                         }
4411                         if (i == hmaclist->num_algo) {
4412                                 /* not found in list */
4413                                 sctp_free_hmaclist(hmaclist);
4414                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4415                                 error = EINVAL;
4416                                 break;
4417                         }
4418                         /* set it on the endpoint */
4419                         SCTP_INP_WLOCK(inp);
4420                         if (inp->sctp_ep.local_hmacs)
4421                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4422                         inp->sctp_ep.local_hmacs = hmaclist;
4423                         SCTP_INP_WUNLOCK(inp);
4424         sctp_set_hmac_done:
4425                         break;
4426                 }
4427         case SCTP_AUTH_ACTIVE_KEY:
4428                 {
4429                         struct sctp_authkeyid *scact;
4430
4431                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4432                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4433
4434                         /* set the active key on the right place */
4435                         if (stcb) {
4436                                 /* set the active key on the assoc */
4437                                 if (sctp_auth_setactivekey(stcb,
4438                                     scact->scact_keynumber)) {
4439                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4440                                             SCTP_FROM_SCTP_USRREQ,
4441                                             EINVAL);
4442                                         error = EINVAL;
4443                                 }
4444                                 SCTP_TCB_UNLOCK(stcb);
4445                         } else {
4446                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4447                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4448                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4449                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4450                                         SCTP_INP_WLOCK(inp);
4451                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4452                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4453                                                 error = EINVAL;
4454                                         }
4455                                         SCTP_INP_WUNLOCK(inp);
4456                                 }
4457                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4458                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4459                                         SCTP_INP_RLOCK(inp);
4460                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4461                                                 SCTP_TCB_LOCK(stcb);
4462                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4463                                                 SCTP_TCB_UNLOCK(stcb);
4464                                         }
4465                                         SCTP_INP_RUNLOCK(inp);
4466                                 }
4467                         }
4468                         break;
4469                 }
4470         case SCTP_AUTH_DELETE_KEY:
4471                 {
4472                         struct sctp_authkeyid *scdel;
4473
4474                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4475                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4476
4477                         /* delete the key from the right place */
4478                         if (stcb) {
4479                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4480                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4481                                         error = EINVAL;
4482                                 }
4483                                 SCTP_TCB_UNLOCK(stcb);
4484                         } else {
4485                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4486                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4487                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4488                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4489                                         SCTP_INP_WLOCK(inp);
4490                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4491                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4492                                                 error = EINVAL;
4493                                         }
4494                                         SCTP_INP_WUNLOCK(inp);
4495                                 }
4496                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4497                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4498                                         SCTP_INP_RLOCK(inp);
4499                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4500                                                 SCTP_TCB_LOCK(stcb);
4501                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4502                                                 SCTP_TCB_UNLOCK(stcb);
4503                                         }
4504                                         SCTP_INP_RUNLOCK(inp);
4505                                 }
4506                         }
4507                         break;
4508                 }
4509         case SCTP_AUTH_DEACTIVATE_KEY:
4510                 {
4511                         struct sctp_authkeyid *keyid;
4512
4513                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4514                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4515
4516                         /* deactivate the key from the right place */
4517                         if (stcb) {
4518                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4519                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4520                                         error = EINVAL;
4521                                 }
4522                                 SCTP_TCB_UNLOCK(stcb);
4523                         } else {
4524                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4525                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4526                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4527                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4528                                         SCTP_INP_WLOCK(inp);
4529                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4530                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4531                                                 error = EINVAL;
4532                                         }
4533                                         SCTP_INP_WUNLOCK(inp);
4534                                 }
4535                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4536                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4537                                         SCTP_INP_RLOCK(inp);
4538                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4539                                                 SCTP_TCB_LOCK(stcb);
4540                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4541                                                 SCTP_TCB_UNLOCK(stcb);
4542                                         }
4543                                         SCTP_INP_RUNLOCK(inp);
4544                                 }
4545                         }
4546                         break;
4547                 }
4548         case SCTP_ENABLE_STREAM_RESET:
4549                 {
4550                         struct sctp_assoc_value *av;
4551
4552                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4553                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4554                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4555                                 error = EINVAL;
4556                                 break;
4557                         }
4558                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4559                         if (stcb) {
4560                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4561                                 SCTP_TCB_UNLOCK(stcb);
4562                         } else {
4563                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4564                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4565                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4566                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4567                                         SCTP_INP_WLOCK(inp);
4568                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4569                                         SCTP_INP_WUNLOCK(inp);
4570                                 }
4571                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4572                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4573                                         SCTP_INP_RLOCK(inp);
4574                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4575                                                 SCTP_TCB_LOCK(stcb);
4576                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4577                                                 SCTP_TCB_UNLOCK(stcb);
4578                                         }
4579                                         SCTP_INP_RUNLOCK(inp);
4580                                 }
4581                         }
4582                         break;
4583                 }
4584         case SCTP_RESET_STREAMS:
4585                 {
4586                         struct sctp_reset_streams *strrst;
4587                         int i, send_out = 0;
4588                         int send_in = 0;
4589
4590                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4591                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4592                         if (stcb == NULL) {
4593                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4594                                 error = ENOENT;
4595                                 break;
4596                         }
4597                         if (stcb->asoc.reconfig_supported == 0) {
4598                                 /*
4599                                  * Peer does not support the chunk type.
4600                                  */
4601                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4602                                 error = EOPNOTSUPP;
4603                                 SCTP_TCB_UNLOCK(stcb);
4604                                 break;
4605                         }
4606                         if (sizeof(struct sctp_reset_streams) +
4607                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4608                                 error = EINVAL;
4609                                 SCTP_TCB_UNLOCK(stcb);
4610                                 break;
4611                         }
4612                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4613                                 send_in = 1;
4614                                 if (stcb->asoc.stream_reset_outstanding) {
4615                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4616                                         error = EALREADY;
4617                                         SCTP_TCB_UNLOCK(stcb);
4618                                         break;
4619                                 }
4620                         }
4621                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4622                                 send_out = 1;
4623                         }
4624                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4625                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4626                                 error = ENOMEM;
4627                                 SCTP_TCB_UNLOCK(stcb);
4628                                 break;
4629                         }
4630                         if ((send_in == 0) && (send_out == 0)) {
4631                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4632                                 error = EINVAL;
4633                                 SCTP_TCB_UNLOCK(stcb);
4634                                 break;
4635                         }
4636                         for (i = 0; i < strrst->srs_number_streams; i++) {
4637                                 if ((send_in) &&
4638                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4639                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4640                                         error = EINVAL;
4641                                         break;
4642                                 }
4643                                 if ((send_out) &&
4644                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4646                                         error = EINVAL;
4647                                         break;
4648                                 }
4649                         }
4650                         if (error) {
4651                                 SCTP_TCB_UNLOCK(stcb);
4652                                 break;
4653                         }
4654                         if (send_out) {
4655                                 int cnt;
4656                                 uint16_t strm;
4657
4658                                 if (strrst->srs_number_streams) {
4659                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4660                                                 strm = strrst->srs_stream_list[i];
4661                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4662                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4663                                                         cnt++;
4664                                                 }
4665                                         }
4666                                 } else {
4667                                         /* Its all */
4668                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4669                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4670                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4671                                                         cnt++;
4672                                                 }
4673                                         }
4674                                 }
4675                         }
4676                         if (send_in) {
4677                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4678                                     strrst->srs_stream_list,
4679                                     send_in, 0, 0, 0, 0, 0);
4680                         } else {
4681                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4682                         }
4683                         if (error == 0) {
4684                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4685                         } else {
4686                                 /*
4687                                  * For outgoing streams don't report any
4688                                  * problems in sending the request to the
4689                                  * application. XXX: Double check resetting
4690                                  * incoming streams.
4691                                  */
4692                                 error = 0;
4693                         }
4694                         SCTP_TCB_UNLOCK(stcb);
4695                         break;
4696                 }
4697         case SCTP_ADD_STREAMS:
4698                 {
4699                         struct sctp_add_streams *stradd;
4700                         uint8_t addstream = 0;
4701                         uint16_t add_o_strmcnt = 0;
4702                         uint16_t add_i_strmcnt = 0;
4703
4704                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4705                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4706                         if (stcb == NULL) {
4707                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4708                                 error = ENOENT;
4709                                 break;
4710                         }
4711                         if (stcb->asoc.reconfig_supported == 0) {
4712                                 /*
4713                                  * Peer does not support the chunk type.
4714                                  */
4715                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4716                                 error = EOPNOTSUPP;
4717                                 SCTP_TCB_UNLOCK(stcb);
4718                                 break;
4719                         }
4720                         if (stcb->asoc.stream_reset_outstanding) {
4721                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4722                                 error = EALREADY;
4723                                 SCTP_TCB_UNLOCK(stcb);
4724                                 break;
4725                         }
4726                         if ((stradd->sas_outstrms == 0) &&
4727                             (stradd->sas_instrms == 0)) {
4728                                 error = EINVAL;
4729                                 goto skip_stuff;
4730                         }
4731                         if (stradd->sas_outstrms) {
4732                                 addstream = 1;
4733                                 /* We allocate here */
4734                                 add_o_strmcnt = stradd->sas_outstrms;
4735                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4736                                         /* You can't have more than 64k */
4737                                         error = EINVAL;
4738                                         goto skip_stuff;
4739                                 }
4740                         }
4741                         if (stradd->sas_instrms) {
4742                                 int cnt;
4743
4744                                 addstream |= 2;
4745                                 /*
4746                                  * We allocate inside
4747                                  * sctp_send_str_reset_req()
4748                                  */
4749                                 add_i_strmcnt = stradd->sas_instrms;
4750                                 cnt = add_i_strmcnt;
4751                                 cnt += stcb->asoc.streamincnt;
4752                                 if (cnt > 0x0000ffff) {
4753                                         /* You can't have more than 64k */
4754                                         error = EINVAL;
4755                                         goto skip_stuff;
4756                                 }
4757                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4758                                         /* More than you are allowed */
4759                                         error = EINVAL;
4760                                         goto skip_stuff;
4761                                 }
4762                         }
4763                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4764                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4765         skip_stuff:
4766                         SCTP_TCB_UNLOCK(stcb);
4767                         break;
4768                 }
4769         case SCTP_RESET_ASSOC:
4770                 {
4771                         int i;
4772                         uint32_t *value;
4773
4774                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4775                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4776                         if (stcb == NULL) {
4777                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4778                                 error = ENOENT;
4779                                 break;
4780                         }
4781                         if (stcb->asoc.reconfig_supported == 0) {
4782                                 /*
4783                                  * Peer does not support the chunk type.
4784                                  */
4785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4786                                 error = EOPNOTSUPP;
4787                                 SCTP_TCB_UNLOCK(stcb);
4788                                 break;
4789                         }
4790                         if (stcb->asoc.stream_reset_outstanding) {
4791                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4792                                 error = EALREADY;
4793                                 SCTP_TCB_UNLOCK(stcb);
4794                                 break;
4795                         }
4796                         /*
4797                          * Is there any data pending in the send or sent
4798                          * queues?
4799                          */
4800                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4801                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4802                 busy_out:
4803                                 error = EBUSY;
4804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4805                                 SCTP_TCB_UNLOCK(stcb);
4806                                 break;
4807                         }
4808                         /* Do any streams have data queued? */
4809                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4810                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4811                                         goto busy_out;
4812                                 }
4813                         }
4814                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4815                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4816                         SCTP_TCB_UNLOCK(stcb);
4817                         break;
4818                 }
4819         case SCTP_CONNECT_X:
4820                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4821                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4822                         error = EINVAL;
4823                         break;
4824                 }
4825                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4826                 break;
4827         case SCTP_CONNECT_X_DELAYED:
4828                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4829                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4830                         error = EINVAL;
4831                         break;
4832                 }
4833                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4834                 break;
4835         case SCTP_CONNECT_X_COMPLETE:
4836                 {
4837                         struct sockaddr *sa;
4838
4839                         /* FIXME MT: check correct? */
4840                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4841
4842                         /* find tcb */
4843                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4844                                 SCTP_INP_RLOCK(inp);
4845                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4846                                 if (stcb) {
4847                                         SCTP_TCB_LOCK(stcb);
4848                                 }
4849                                 SCTP_INP_RUNLOCK(inp);
4850                         } else {
4851                                 /*
4852                                  * We increment here since
4853                                  * sctp_findassociation_ep_addr() wil do a
4854                                  * decrement if it finds the stcb as long as
4855                                  * the locked tcb (last argument) is NOT a
4856                                  * TCB.. aka NULL.
4857                                  */
4858                                 SCTP_INP_INCR_REF(inp);
4859                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4860                                 if (stcb == NULL) {
4861                                         SCTP_INP_DECR_REF(inp);
4862                                 }
4863                         }
4864
4865                         if (stcb == NULL) {
4866                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4867                                 error = ENOENT;
4868                                 break;
4869                         }
4870                         if (stcb->asoc.delayed_connection == 1) {
4871                                 stcb->asoc.delayed_connection = 0;
4872                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4873                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4874                                     stcb->asoc.primary_destination,
4875                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4876                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4877                         } else {
4878                                 /*
4879                                  * already expired or did not use delayed
4880                                  * connectx
4881                                  */
4882                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4883                                 error = EALREADY;
4884                         }
4885                         SCTP_TCB_UNLOCK(stcb);
4886                         break;
4887                 }
4888         case SCTP_MAX_BURST:
4889                 {
4890                         struct sctp_assoc_value *av;
4891
4892                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4893                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4894
4895                         if (stcb) {
4896                                 stcb->asoc.max_burst = av->assoc_value;
4897                                 SCTP_TCB_UNLOCK(stcb);
4898                         } else {
4899                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4900                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4901                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4902                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4903                                         SCTP_INP_WLOCK(inp);
4904                                         inp->sctp_ep.max_burst = av->assoc_value;
4905                                         SCTP_INP_WUNLOCK(inp);
4906                                 }
4907                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4908                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4909                                         SCTP_INP_RLOCK(inp);
4910                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4911                                                 SCTP_TCB_LOCK(stcb);
4912                                                 stcb->asoc.max_burst = av->assoc_value;
4913                                                 SCTP_TCB_UNLOCK(stcb);
4914                                         }
4915                                         SCTP_INP_RUNLOCK(inp);
4916                                 }
4917                         }
4918                         break;
4919                 }
4920         case SCTP_MAXSEG:
4921                 {
4922                         struct sctp_assoc_value *av;
4923                         int ovh;
4924
4925                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4926                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4927
4928                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4929                                 ovh = SCTP_MED_OVERHEAD;
4930                         } else {
4931                                 ovh = SCTP_MED_V4_OVERHEAD;
4932                         }
4933                         if (stcb) {
4934                                 if (av->assoc_value) {
4935                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4936                                 } else {
4937                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4938                                 }
4939                                 SCTP_TCB_UNLOCK(stcb);
4940                         } else {
4941                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4942                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4943                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4944                                         SCTP_INP_WLOCK(inp);
4945                                         /*
4946                                          * FIXME MT: I think this is not in
4947                                          * tune with the API ID
4948                                          */
4949                                         if (av->assoc_value) {
4950                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4951                                         } else {
4952                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4953                                         }
4954                                         SCTP_INP_WUNLOCK(inp);
4955                                 } else {
4956                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4957                                         error = EINVAL;
4958                                 }
4959                         }
4960                         break;
4961                 }
4962         case SCTP_EVENTS:
4963                 {
4964                         struct sctp_event_subscribe *events;
4965
4966                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4967
4968                         SCTP_INP_WLOCK(inp);
4969                         if (events->sctp_data_io_event) {
4970                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4971                         } else {
4972                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4973                         }
4974
4975                         if (events->sctp_association_event) {
4976                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4977                         } else {
4978                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4979                         }
4980
4981                         if (events->sctp_address_event) {
4982                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4983                         } else {
4984                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4985                         }
4986
4987                         if (events->sctp_send_failure_event) {
4988                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4989                         } else {
4990                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4991                         }
4992
4993                         if (events->sctp_peer_error_event) {
4994                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4995                         } else {
4996                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4997                         }
4998
4999                         if (events->sctp_shutdown_event) {
5000                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5001                         } else {
5002                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5003                         }
5004
5005                         if (events->sctp_partial_delivery_event) {
5006                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5007                         } else {
5008                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5009                         }
5010
5011                         if (events->sctp_adaptation_layer_event) {
5012                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5013                         } else {
5014                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5015                         }
5016
5017                         if (events->sctp_authentication_event) {
5018                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5019                         } else {
5020                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5021                         }
5022
5023                         if (events->sctp_sender_dry_event) {
5024                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5025                         } else {
5026                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5027                         }
5028
5029                         if (events->sctp_stream_reset_event) {
5030                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5031                         } else {
5032                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5033                         }
5034                         SCTP_INP_WUNLOCK(inp);
5035
5036                         SCTP_INP_RLOCK(inp);
5037                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5038                                 SCTP_TCB_LOCK(stcb);
5039                                 if (events->sctp_association_event) {
5040                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5041                                 } else {
5042                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5043                                 }
5044                                 if (events->sctp_address_event) {
5045                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5046                                 } else {
5047                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5048                                 }
5049                                 if (events->sctp_send_failure_event) {
5050                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5051                                 } else {
5052                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5053                                 }
5054                                 if (events->sctp_peer_error_event) {
5055                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5056                                 } else {
5057                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5058                                 }
5059                                 if (events->sctp_shutdown_event) {
5060                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5061                                 } else {
5062                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5063                                 }
5064                                 if (events->sctp_partial_delivery_event) {
5065                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5066                                 } else {
5067                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5068                                 }
5069                                 if (events->sctp_adaptation_layer_event) {
5070                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5071                                 } else {
5072                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5073                                 }
5074                                 if (events->sctp_authentication_event) {
5075                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5076                                 } else {
5077                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5078                                 }
5079                                 if (events->sctp_sender_dry_event) {
5080                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5081                                 } else {
5082                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5083                                 }
5084                                 if (events->sctp_stream_reset_event) {
5085                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5086                                 } else {
5087                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5088                                 }
5089                                 SCTP_TCB_UNLOCK(stcb);
5090                         }
5091                         /*
5092                          * Send up the sender dry event only for 1-to-1
5093                          * style sockets.
5094                          */
5095                         if (events->sctp_sender_dry_event) {
5096                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5097                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5098                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5099                                         if (stcb) {
5100                                                 SCTP_TCB_LOCK(stcb);
5101                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5102                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5103                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5104                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5105                                                 }
5106                                                 SCTP_TCB_UNLOCK(stcb);
5107                                         }
5108                                 }
5109                         }
5110                         SCTP_INP_RUNLOCK(inp);
5111                         break;
5112                 }
5113         case SCTP_ADAPTATION_LAYER:
5114                 {
5115                         struct sctp_setadaptation *adap_bits;
5116
5117                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5118                         SCTP_INP_WLOCK(inp);
5119                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5120                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5121                         SCTP_INP_WUNLOCK(inp);
5122                         break;
5123                 }
5124 #ifdef SCTP_DEBUG
5125         case SCTP_SET_INITIAL_DBG_SEQ:
5126                 {
5127                         uint32_t *vvv;
5128
5129                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5130                         SCTP_INP_WLOCK(inp);
5131                         inp->sctp_ep.initial_sequence_debug = *vvv;
5132                         SCTP_INP_WUNLOCK(inp);
5133                         break;
5134                 }
5135 #endif
5136         case SCTP_DEFAULT_SEND_PARAM:
5137                 {
5138                         struct sctp_sndrcvinfo *s_info;
5139
5140                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5141                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5142
5143                         if (stcb) {
5144                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5145                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5146                                 } else {
5147                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5148                                         error = EINVAL;
5149                                 }
5150                                 SCTP_TCB_UNLOCK(stcb);
5151                         } else {
5152                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5153                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5154                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5155                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5156                                         SCTP_INP_WLOCK(inp);
5157                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5158                                         SCTP_INP_WUNLOCK(inp);
5159                                 }
5160                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5161                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5162                                         SCTP_INP_RLOCK(inp);
5163                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5164                                                 SCTP_TCB_LOCK(stcb);
5165                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5166                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5167                                                 }
5168                                                 SCTP_TCB_UNLOCK(stcb);
5169                                         }
5170                                         SCTP_INP_RUNLOCK(inp);
5171                                 }
5172                         }
5173                         break;
5174                 }
5175         case SCTP_PEER_ADDR_PARAMS:
5176                 {
5177                         struct sctp_paddrparams *paddrp;
5178                         struct sctp_nets *net;
5179                         struct sockaddr *addr;
5180 #if defined(INET) && defined(INET6)
5181                         struct sockaddr_in sin_store;
5182 #endif
5183
5184                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5185                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5186
5187 #if defined(INET) && defined(INET6)
5188                         if (paddrp->spp_address.ss_family == AF_INET6) {
5189                                 struct sockaddr_in6 *sin6;
5190
5191                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5192                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5193                                         in6_sin6_2_sin(&sin_store, sin6);
5194                                         addr = (struct sockaddr *)&sin_store;
5195                                 } else {
5196                                         addr = (struct sockaddr *)&paddrp->spp_address;
5197                                 }
5198                         } else {
5199                                 addr = (struct sockaddr *)&paddrp->spp_address;
5200                         }
5201 #else
5202                         addr = (struct sockaddr *)&paddrp->spp_address;
5203 #endif
5204                         if (stcb != NULL) {
5205                                 net = sctp_findnet(stcb, addr);
5206                         } else {
5207                                 /*
5208                                  * We increment here since
5209                                  * sctp_findassociation_ep_addr() wil do a
5210                                  * decrement if it finds the stcb as long as
5211                                  * the locked tcb (last argument) is NOT a
5212                                  * TCB.. aka NULL.
5213                                  */
5214                                 net = NULL;
5215                                 SCTP_INP_INCR_REF(inp);
5216                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5217                                     &net, NULL, NULL);
5218                                 if (stcb == NULL) {
5219                                         SCTP_INP_DECR_REF(inp);
5220                                 }
5221                         }
5222                         if ((stcb != NULL) && (net == NULL)) {
5223 #ifdef INET
5224                                 if (addr->sa_family == AF_INET) {
5225
5226                                         struct sockaddr_in *sin;
5227
5228                                         sin = (struct sockaddr_in *)addr;
5229                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5230                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5231                                                 SCTP_TCB_UNLOCK(stcb);
5232                                                 error = EINVAL;
5233                                                 break;
5234                                         }
5235                                 } else
5236 #endif
5237 #ifdef INET6
5238                                 if (addr->sa_family == AF_INET6) {
5239                                         struct sockaddr_in6 *sin6;
5240
5241                                         sin6 = (struct sockaddr_in6 *)addr;
5242                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5243                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5244                                                 SCTP_TCB_UNLOCK(stcb);
5245                                                 error = EINVAL;
5246                                                 break;
5247                                         }
5248                                 } else
5249 #endif
5250                                 {
5251                                         error = EAFNOSUPPORT;
5252                                         SCTP_TCB_UNLOCK(stcb);
5253                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5254                                         break;
5255                                 }
5256                         }
5257                         /* sanity checks */
5258                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5259                                 if (stcb)
5260                                         SCTP_TCB_UNLOCK(stcb);
5261                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5262                                 return (EINVAL);
5263                         }
5264                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5265                                 if (stcb)
5266                                         SCTP_TCB_UNLOCK(stcb);
5267                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5268                                 return (EINVAL);
5269                         }
5270                         if (stcb != NULL) {
5271                                 /************************TCB SPECIFIC SET ******************/
5272                                 if (net != NULL) {
5273                                         /************************NET SPECIFIC SET ******************/
5274                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5275                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5276                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5277                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5278                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5279                                                 }
5280                                                 net->dest_state |= SCTP_ADDR_NOHB;
5281                                         }
5282                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5283                                                 if (paddrp->spp_hbinterval) {
5284                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5285                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5286                                                         net->heart_beat_delay = 0;
5287                                                 }
5288                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5289                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5290                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5291                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5292                                         }
5293                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5294                                                 /* on demand HB */
5295                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5296                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5297                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5298                                         }
5299                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5300                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5301                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5302                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5303                                                 }
5304                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5305                                                 net->mtu = paddrp->spp_pathmtu;
5306                                                 switch (net->ro._l_addr.sa.sa_family) {
5307 #ifdef INET
5308                                                 case AF_INET:
5309                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5310                                                         break;
5311 #endif
5312 #ifdef INET6
5313                                                 case AF_INET6:
5314                                                         net->mtu += SCTP_MIN_OVERHEAD;
5315                                                         break;
5316 #endif
5317                                                 default:
5318                                                         break;
5319                                                 }
5320                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5321                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5322                                                 }
5323                                         }
5324                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5325                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5326                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5327                                                 }
5328                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5329                                         }
5330                                         if (paddrp->spp_pathmaxrxt) {
5331                                                 if (net->dest_state & SCTP_ADDR_PF) {
5332                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5333                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5334                                                         }
5335                                                 } else {
5336                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5337                                                             (net->error_count > net->pf_threshold)) {
5338                                                                 net->dest_state |= SCTP_ADDR_PF;
5339                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5340                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5341                                                                     stcb->sctp_ep, stcb, net,
5342                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5343                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5344                                                         }
5345                                                 }
5346                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5347                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5348                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5349                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5350                                                         }
5351                                                 } else {
5352                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5353                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5354                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5355                                                         }
5356                                                 }
5357                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5358                                         }
5359                                         if (paddrp->spp_flags & SPP_DSCP) {
5360                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5361                                                 net->dscp |= 0x01;
5362                                         }
5363 #ifdef INET6
5364                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5365                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5366                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5367                                                         net->flowlabel |= 0x80000000;
5368                                                 }
5369                                         }
5370 #endif
5371                                 } else {
5372                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5373                                         if (paddrp->spp_pathmaxrxt != 0) {
5374                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5375                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
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_13);
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                                         }
5405                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5406                                                 if (paddrp->spp_hbinterval != 0) {
5407                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5408                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5409                                                         stcb->asoc.heart_beat_delay = 0;
5410                                                 }
5411                                                 /* Turn back on the timer */
5412                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5413                                                         if (paddrp->spp_hbinterval != 0) {
5414                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5415                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5416                                                                 net->heart_beat_delay = 0;
5417                                                         }
5418                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5419                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5420                                                         }
5421                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5422                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5423                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5424                                                 }
5425                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5426                                         }
5427                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5428                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5429                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5430                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5431                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5432                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5433                                                                             inp, stcb, net,
5434                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5435                                                                 }
5436                                                         }
5437                                                 }
5438                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5439                                         }
5440                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5441                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5442                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5443                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5444                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5445                                                         }
5446                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5447                                                         net->mtu = paddrp->spp_pathmtu;
5448                                                         switch (net->ro._l_addr.sa.sa_family) {
5449 #ifdef INET
5450                                                         case AF_INET:
5451                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5452                                                                 break;
5453 #endif
5454 #ifdef INET6
5455                                                         case AF_INET6:
5456                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5457                                                                 break;
5458 #endif
5459                                                         default:
5460                                                                 break;
5461                                                         }
5462                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5463                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5464                                                         }
5465                                                 }
5466                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5467                                         }
5468                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5469                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5470                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5471                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5472                                                         }
5473                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5474                                                 }
5475                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5476                                         }
5477                                         if (paddrp->spp_flags & SPP_DSCP) {
5478                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5479                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5480                                                         net->dscp |= 0x01;
5481                                                 }
5482                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5483                                                 stcb->asoc.default_dscp |= 0x01;
5484                                         }
5485 #ifdef INET6
5486                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5487                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5488                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5489                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5490                                                                 net->flowlabel |= 0x80000000;
5491                                                         }
5492                                                 }
5493                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5494                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5495                                         }
5496 #endif
5497                                 }
5498                                 SCTP_TCB_UNLOCK(stcb);
5499                         } else {
5500                                 /************************NO TCB, SET TO default stuff ******************/
5501                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5502                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5503                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5504                                         SCTP_INP_WLOCK(inp);
5505                                         /*
5506                                          * For the TOS/FLOWLABEL stuff you
5507                                          * set it with the options on the
5508                                          * socket
5509                                          */
5510                                         if (paddrp->spp_pathmaxrxt != 0) {
5511                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5512                                         }
5513                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5514                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5515                                         else if (paddrp->spp_hbinterval != 0) {
5516                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5517                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5518                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5519                                         }
5520                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5521                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5522                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5523                                                 } else if (paddrp->spp_hbinterval) {
5524                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5525                                                 }
5526                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5527                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5528                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5529                                         }
5530                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5531                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5532                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5533                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5534                                         }
5535                                         if (paddrp->spp_flags & SPP_DSCP) {
5536                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5537                                                 inp->sctp_ep.default_dscp |= 0x01;
5538                                         }
5539 #ifdef INET6
5540                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5541                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5542                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5543                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5544                                                 }
5545                                         }
5546 #endif
5547                                         SCTP_INP_WUNLOCK(inp);
5548                                 } else {
5549                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5550                                         error = EINVAL;
5551                                 }
5552                         }
5553                         break;
5554                 }
5555         case SCTP_RTOINFO:
5556                 {
5557                         struct sctp_rtoinfo *srto;
5558                         uint32_t new_init, new_min, new_max;
5559
5560                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5561                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5562
5563                         if (stcb) {
5564                                 if (srto->srto_initial)
5565                                         new_init = srto->srto_initial;
5566                                 else
5567                                         new_init = stcb->asoc.initial_rto;
5568                                 if (srto->srto_max)
5569                                         new_max = srto->srto_max;
5570                                 else
5571                                         new_max = stcb->asoc.maxrto;
5572                                 if (srto->srto_min)
5573                                         new_min = srto->srto_min;
5574                                 else
5575                                         new_min = stcb->asoc.minrto;
5576                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5577                                         stcb->asoc.initial_rto = new_init;
5578                                         stcb->asoc.maxrto = new_max;
5579                                         stcb->asoc.minrto = new_min;
5580                                 } else {
5581                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5582                                         error = EINVAL;
5583                                 }
5584                                 SCTP_TCB_UNLOCK(stcb);
5585                         } else {
5586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5588                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5589                                         SCTP_INP_WLOCK(inp);
5590                                         if (srto->srto_initial)
5591                                                 new_init = srto->srto_initial;
5592                                         else
5593                                                 new_init = inp->sctp_ep.initial_rto;
5594                                         if (srto->srto_max)
5595                                                 new_max = srto->srto_max;
5596                                         else
5597                                                 new_max = inp->sctp_ep.sctp_maxrto;
5598                                         if (srto->srto_min)
5599                                                 new_min = srto->srto_min;
5600                                         else
5601                                                 new_min = inp->sctp_ep.sctp_minrto;
5602                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5603                                                 inp->sctp_ep.initial_rto = new_init;
5604                                                 inp->sctp_ep.sctp_maxrto = new_max;
5605                                                 inp->sctp_ep.sctp_minrto = new_min;
5606                                         } else {
5607                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5608                                                 error = EINVAL;
5609                                         }
5610                                         SCTP_INP_WUNLOCK(inp);
5611                                 } else {
5612                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5613                                         error = EINVAL;
5614                                 }
5615                         }
5616                         break;
5617                 }
5618         case SCTP_ASSOCINFO:
5619                 {
5620                         struct sctp_assocparams *sasoc;
5621
5622                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5623                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5624                         if (sasoc->sasoc_cookie_life) {
5625                                 /* boundary check the cookie life */
5626                                 if (sasoc->sasoc_cookie_life < 1000)
5627                                         sasoc->sasoc_cookie_life = 1000;
5628                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5629                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5630                                 }
5631                         }
5632                         if (stcb) {
5633                                 if (sasoc->sasoc_asocmaxrxt)
5634                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5635                                 if (sasoc->sasoc_cookie_life) {
5636                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5637                                 }
5638                                 SCTP_TCB_UNLOCK(stcb);
5639                         } else {
5640                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5641                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5642                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5643                                         SCTP_INP_WLOCK(inp);
5644                                         if (sasoc->sasoc_asocmaxrxt)
5645                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5646                                         if (sasoc->sasoc_cookie_life) {
5647                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5648                                         }
5649                                         SCTP_INP_WUNLOCK(inp);
5650                                 } else {
5651                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5652                                         error = EINVAL;
5653                                 }
5654                         }
5655                         break;
5656                 }
5657         case SCTP_INITMSG:
5658                 {
5659                         struct sctp_initmsg *sinit;
5660
5661                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5662                         SCTP_INP_WLOCK(inp);
5663                         if (sinit->sinit_num_ostreams)
5664                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5665
5666                         if (sinit->sinit_max_instreams)
5667                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5668
5669                         if (sinit->sinit_max_attempts)
5670                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5671
5672                         if (sinit->sinit_max_init_timeo)
5673                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5674                         SCTP_INP_WUNLOCK(inp);
5675                         break;
5676                 }
5677         case SCTP_PRIMARY_ADDR:
5678                 {
5679                         struct sctp_setprim *spa;
5680                         struct sctp_nets *net;
5681                         struct sockaddr *addr;
5682 #if defined(INET) && defined(INET6)
5683                         struct sockaddr_in sin_store;
5684 #endif
5685
5686                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5687                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5688
5689 #if defined(INET) && defined(INET6)
5690                         if (spa->ssp_addr.ss_family == AF_INET6) {
5691                                 struct sockaddr_in6 *sin6;
5692
5693                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5694                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5695                                         in6_sin6_2_sin(&sin_store, sin6);
5696                                         addr = (struct sockaddr *)&sin_store;
5697                                 } else {
5698                                         addr = (struct sockaddr *)&spa->ssp_addr;
5699                                 }
5700                         } else {
5701                                 addr = (struct sockaddr *)&spa->ssp_addr;
5702                         }
5703 #else
5704                         addr = (struct sockaddr *)&spa->ssp_addr;
5705 #endif
5706                         if (stcb != NULL) {
5707                                 net = sctp_findnet(stcb, addr);
5708                         } else {
5709                                 /*
5710                                  * We increment here since
5711                                  * sctp_findassociation_ep_addr() wil do a
5712                                  * decrement if it finds the stcb as long as
5713                                  * the locked tcb (last argument) is NOT a
5714                                  * TCB.. aka NULL.
5715                                  */
5716                                 net = NULL;
5717                                 SCTP_INP_INCR_REF(inp);
5718                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5719                                     &net, NULL, NULL);
5720                                 if (stcb == NULL) {
5721                                         SCTP_INP_DECR_REF(inp);
5722                                 }
5723                         }
5724
5725                         if ((stcb != NULL) && (net != NULL)) {
5726                                 if (net != stcb->asoc.primary_destination) {
5727                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5728                                                 /* Ok we need to set it */
5729                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5730                                                         if ((stcb->asoc.alternate) &&
5731                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5732                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5733                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5734                                                                 stcb->asoc.alternate = NULL;
5735                                                         }
5736                                                 } else {
5737                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5738                                                         error = EINVAL;
5739                                                 }
5740                                         } else {
5741                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5742                                                 error = EINVAL;
5743                                         }
5744                                 }
5745                         } else {
5746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5747                                 error = EINVAL;
5748                         }
5749                         if (stcb != NULL) {
5750                                 SCTP_TCB_UNLOCK(stcb);
5751                         }
5752                         break;
5753                 }
5754         case SCTP_SET_DYNAMIC_PRIMARY:
5755                 {
5756                         union sctp_sockstore *ss;
5757
5758                         error = priv_check(curthread,
5759                             PRIV_NETINET_RESERVEDPORT);
5760                         if (error)
5761                                 break;
5762
5763                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5764                         /* SUPER USER CHECK? */
5765                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5766                         break;
5767                 }
5768         case SCTP_SET_PEER_PRIMARY_ADDR:
5769                 {
5770                         struct sctp_setpeerprim *sspp;
5771                         struct sockaddr *addr;
5772 #if defined(INET) && defined(INET6)
5773                         struct sockaddr_in sin_store;
5774 #endif
5775
5776                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5777                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5778                         if (stcb != NULL) {
5779                                 struct sctp_ifa *ifa;
5780
5781 #if defined(INET) && defined(INET6)
5782                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5783                                         struct sockaddr_in6 *sin6;
5784
5785                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5786                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5787                                                 in6_sin6_2_sin(&sin_store, sin6);
5788                                                 addr = (struct sockaddr *)&sin_store;
5789                                         } else {
5790                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5791                                         }
5792                                 } else {
5793                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5794                                 }
5795 #else
5796                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5797 #endif
5798                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5799                                 if (ifa == NULL) {
5800                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5801                                         error = EINVAL;
5802                                         goto out_of_it;
5803                                 }
5804                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5805                                         /*
5806                                          * Must validate the ifa found is in
5807                                          * our ep
5808                                          */
5809                                         struct sctp_laddr *laddr;
5810                                         int found = 0;
5811
5812                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5813                                                 if (laddr->ifa == NULL) {
5814                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5815                                                             __func__);
5816                                                         continue;
5817                                                 }
5818                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5819                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5820                                                         continue;
5821                                                 }
5822                                                 if (laddr->ifa == ifa) {
5823                                                         found = 1;
5824                                                         break;
5825                                                 }
5826                                         }
5827                                         if (!found) {
5828                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5829                                                 error = EINVAL;
5830                                                 goto out_of_it;
5831                                         }
5832                                 } else {
5833                                         switch (addr->sa_family) {
5834 #ifdef INET
5835                                         case AF_INET:
5836                                                 {
5837                                                         struct sockaddr_in *sin;
5838
5839                                                         sin = (struct sockaddr_in *)addr;
5840                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5841                                                             &sin->sin_addr) != 0) {
5842                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5843                                                                 error = EINVAL;
5844                                                                 goto out_of_it;
5845                                                         }
5846                                                         break;
5847                                                 }
5848 #endif
5849 #ifdef INET6
5850                                         case AF_INET6:
5851                                                 {
5852                                                         struct sockaddr_in6 *sin6;
5853
5854                                                         sin6 = (struct sockaddr_in6 *)addr;
5855                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5856                                                             &sin6->sin6_addr) != 0) {
5857                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5858                                                                 error = EINVAL;
5859                                                                 goto out_of_it;
5860                                                         }
5861                                                         break;
5862                                                 }
5863 #endif
5864                                         default:
5865                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5866                                                 error = EINVAL;
5867                                                 goto out_of_it;
5868                                         }
5869                                 }
5870                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5871                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5872                                         error = EINVAL;
5873                                 }
5874                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5875                 out_of_it:
5876                                 SCTP_TCB_UNLOCK(stcb);
5877                         } else {
5878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5879                                 error = EINVAL;
5880                         }
5881                         break;
5882                 }
5883         case SCTP_BINDX_ADD_ADDR:
5884                 {
5885                         struct sctp_getaddresses *addrs;
5886                         struct thread *td;
5887
5888                         td = (struct thread *)p;
5889                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5890                             optsize);
5891 #ifdef INET
5892                         if (addrs->addr->sa_family == AF_INET) {
5893                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5894                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5895                                         error = EINVAL;
5896                                         break;
5897                                 }
5898                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5899                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5900                                         break;
5901                                 }
5902                         } else
5903 #endif
5904 #ifdef INET6
5905                         if (addrs->addr->sa_family == AF_INET6) {
5906                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5907                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5908                                         error = EINVAL;
5909                                         break;
5910                                 }
5911                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5912                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5913                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5914                                         break;
5915                                 }
5916                         } else
5917 #endif
5918                         {
5919                                 error = EAFNOSUPPORT;
5920                                 break;
5921                         }
5922                         sctp_bindx_add_address(so, inp, addrs->addr,
5923                             addrs->sget_assoc_id, vrf_id,
5924                             &error, p);
5925                         break;
5926                 }
5927         case SCTP_BINDX_REM_ADDR:
5928                 {
5929                         struct sctp_getaddresses *addrs;
5930                         struct thread *td;
5931
5932                         td = (struct thread *)p;
5933
5934                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5935 #ifdef INET
5936                         if (addrs->addr->sa_family == AF_INET) {
5937                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5938                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5939                                         error = EINVAL;
5940                                         break;
5941                                 }
5942                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5943                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5944                                         break;
5945                                 }
5946                         } else
5947 #endif
5948 #ifdef INET6
5949                         if (addrs->addr->sa_family == AF_INET6) {
5950                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5952                                         error = EINVAL;
5953                                         break;
5954                                 }
5955                                 if (td != NULL &&
5956                                     (error = prison_local_ip6(td->td_ucred,
5957                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5958                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5959                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5960                                         break;
5961                                 }
5962                         } else
5963 #endif
5964                         {
5965                                 error = EAFNOSUPPORT;
5966                                 break;
5967                         }
5968                         sctp_bindx_delete_address(inp, addrs->addr,
5969                             addrs->sget_assoc_id, vrf_id,
5970                             &error);
5971                         break;
5972                 }
5973         case SCTP_EVENT:
5974                 {
5975                         struct sctp_event *event;
5976                         uint32_t event_type;
5977
5978                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5979                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5980                         switch (event->se_type) {
5981                         case SCTP_ASSOC_CHANGE:
5982                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5983                                 break;
5984                         case SCTP_PEER_ADDR_CHANGE:
5985                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5986                                 break;
5987                         case SCTP_REMOTE_ERROR:
5988                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5989                                 break;
5990                         case SCTP_SEND_FAILED:
5991                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5992                                 break;
5993                         case SCTP_SHUTDOWN_EVENT:
5994                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5995                                 break;
5996                         case SCTP_ADAPTATION_INDICATION:
5997                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5998                                 break;
5999                         case SCTP_PARTIAL_DELIVERY_EVENT:
6000                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6001                                 break;
6002                         case SCTP_AUTHENTICATION_EVENT:
6003                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6004                                 break;
6005                         case SCTP_STREAM_RESET_EVENT:
6006                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6007                                 break;
6008                         case SCTP_SENDER_DRY_EVENT:
6009                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6010                                 break;
6011                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6012                                 event_type = 0;
6013                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6014                                 error = ENOTSUP;
6015                                 break;
6016                         case SCTP_ASSOC_RESET_EVENT:
6017                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6018                                 break;
6019                         case SCTP_STREAM_CHANGE_EVENT:
6020                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6021                                 break;
6022                         case SCTP_SEND_FAILED_EVENT:
6023                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6024                                 break;
6025                         default:
6026                                 event_type = 0;
6027                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6028                                 error = EINVAL;
6029                                 break;
6030                         }
6031                         if (event_type > 0) {
6032                                 if (stcb) {
6033                                         if (event->se_on) {
6034                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6035                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6036                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6037                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6038                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6039                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6040                                                         }
6041                                                 }
6042                                         } else {
6043                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6044                                         }
6045                                         SCTP_TCB_UNLOCK(stcb);
6046                                 } else {
6047                                         /*
6048                                          * We don't want to send up a storm
6049                                          * of events, so return an error for
6050                                          * sender dry events
6051                                          */
6052                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6053                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6054                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6055                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6056                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6057                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6058                                                 error = ENOTSUP;
6059                                                 break;
6060                                         }
6061                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6062                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6063                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6064                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6065                                                 SCTP_INP_WLOCK(inp);
6066                                                 if (event->se_on) {
6067                                                         sctp_feature_on(inp, event_type);
6068                                                 } else {
6069                                                         sctp_feature_off(inp, event_type);
6070                                                 }
6071                                                 SCTP_INP_WUNLOCK(inp);
6072                                         }
6073                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6074                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6075                                                 SCTP_INP_RLOCK(inp);
6076                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6077                                                         SCTP_TCB_LOCK(stcb);
6078                                                         if (event->se_on) {
6079                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6080                                                         } else {
6081                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6082                                                         }
6083                                                         SCTP_TCB_UNLOCK(stcb);
6084                                                 }
6085                                                 SCTP_INP_RUNLOCK(inp);
6086                                         }
6087                                 }
6088                         }
6089                         break;
6090                 }
6091         case SCTP_RECVRCVINFO:
6092                 {
6093                         int *onoff;
6094
6095                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6096                         SCTP_INP_WLOCK(inp);
6097                         if (*onoff != 0) {
6098                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6099                         } else {
6100                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6101                         }
6102                         SCTP_INP_WUNLOCK(inp);
6103                         break;
6104                 }
6105         case SCTP_RECVNXTINFO:
6106                 {
6107                         int *onoff;
6108
6109                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6110                         SCTP_INP_WLOCK(inp);
6111                         if (*onoff != 0) {
6112                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6113                         } else {
6114                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6115                         }
6116                         SCTP_INP_WUNLOCK(inp);
6117                         break;
6118                 }
6119         case SCTP_DEFAULT_SNDINFO:
6120                 {
6121                         struct sctp_sndinfo *info;
6122                         uint16_t policy;
6123
6124                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6125                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6126
6127                         if (stcb) {
6128                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6129                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6130                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6131                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6132                                         stcb->asoc.def_send.sinfo_flags |= policy;
6133                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6134                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6135                                 } else {
6136                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6137                                         error = EINVAL;
6138                                 }
6139                                 SCTP_TCB_UNLOCK(stcb);
6140                         } else {
6141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6143                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6144                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6145                                         SCTP_INP_WLOCK(inp);
6146                                         inp->def_send.sinfo_stream = info->snd_sid;
6147                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6148                                         inp->def_send.sinfo_flags = info->snd_flags;
6149                                         inp->def_send.sinfo_flags |= policy;
6150                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6151                                         inp->def_send.sinfo_context = info->snd_context;
6152                                         SCTP_INP_WUNLOCK(inp);
6153                                 }
6154                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6155                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6156                                         SCTP_INP_RLOCK(inp);
6157                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6158                                                 SCTP_TCB_LOCK(stcb);
6159                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6160                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6161                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6162                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6163                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6164                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6165                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6166                                                 }
6167                                                 SCTP_TCB_UNLOCK(stcb);
6168                                         }
6169                                         SCTP_INP_RUNLOCK(inp);
6170                                 }
6171                         }
6172                         break;
6173                 }
6174         case SCTP_DEFAULT_PRINFO:
6175                 {
6176                         struct sctp_default_prinfo *info;
6177
6178                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6179                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6180
6181                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6182                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6183                                 error = EINVAL;
6184                                 break;
6185                         }
6186                         if (stcb) {
6187                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6188                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6189                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6190                                 SCTP_TCB_UNLOCK(stcb);
6191                         } else {
6192                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6193                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6194                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6195                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6196                                         SCTP_INP_WLOCK(inp);
6197                                         inp->def_send.sinfo_flags &= 0xfff0;
6198                                         inp->def_send.sinfo_flags |= info->pr_policy;
6199                                         inp->def_send.sinfo_timetolive = info->pr_value;
6200                                         SCTP_INP_WUNLOCK(inp);
6201                                 }
6202                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6203                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6204                                         SCTP_INP_RLOCK(inp);
6205                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6206                                                 SCTP_TCB_LOCK(stcb);
6207                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6208                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6209                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6210                                                 SCTP_TCB_UNLOCK(stcb);
6211                                         }
6212                                         SCTP_INP_RUNLOCK(inp);
6213                                 }
6214                         }
6215                         break;
6216                 }
6217         case SCTP_PEER_ADDR_THLDS:
6218                 /* Applies to the specific association */
6219                 {
6220                         struct sctp_paddrthlds *thlds;
6221                         struct sctp_nets *net;
6222                         struct sockaddr *addr;
6223 #if defined(INET) && defined(INET6)
6224                         struct sockaddr_in sin_store;
6225 #endif
6226
6227                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6228                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6229
6230 #if defined(INET) && defined(INET6)
6231                         if (thlds->spt_address.ss_family == AF_INET6) {
6232                                 struct sockaddr_in6 *sin6;
6233
6234                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6235                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6236                                         in6_sin6_2_sin(&sin_store, sin6);
6237                                         addr = (struct sockaddr *)&sin_store;
6238                                 } else {
6239                                         addr = (struct sockaddr *)&thlds->spt_address;
6240                                 }
6241                         } else {
6242                                 addr = (struct sockaddr *)&thlds->spt_address;
6243                         }
6244 #else
6245                         addr = (struct sockaddr *)&thlds->spt_address;
6246 #endif
6247                         if (stcb != NULL) {
6248                                 net = sctp_findnet(stcb, addr);
6249                         } else {
6250                                 /*
6251                                  * We increment here since
6252                                  * sctp_findassociation_ep_addr() wil do a
6253                                  * decrement if it finds the stcb as long as
6254                                  * the locked tcb (last argument) is NOT a
6255                                  * TCB.. aka NULL.
6256                                  */
6257                                 net = NULL;
6258                                 SCTP_INP_INCR_REF(inp);
6259                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6260                                     &net, NULL, NULL);
6261                                 if (stcb == NULL) {
6262                                         SCTP_INP_DECR_REF(inp);
6263                                 }
6264                         }
6265                         if ((stcb != NULL) && (net == NULL)) {
6266 #ifdef INET
6267                                 if (addr->sa_family == AF_INET) {
6268
6269                                         struct sockaddr_in *sin;
6270
6271                                         sin = (struct sockaddr_in *)addr;
6272                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6273                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6274                                                 SCTP_TCB_UNLOCK(stcb);
6275                                                 error = EINVAL;
6276                                                 break;
6277                                         }
6278                                 } else
6279 #endif
6280 #ifdef INET6
6281                                 if (addr->sa_family == AF_INET6) {
6282                                         struct sockaddr_in6 *sin6;
6283
6284                                         sin6 = (struct sockaddr_in6 *)addr;
6285                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6286                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6287                                                 SCTP_TCB_UNLOCK(stcb);
6288                                                 error = EINVAL;
6289                                                 break;
6290                                         }
6291                                 } else
6292 #endif
6293                                 {
6294                                         error = EAFNOSUPPORT;
6295                                         SCTP_TCB_UNLOCK(stcb);
6296                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6297                                         break;
6298                                 }
6299                         }
6300                         if (thlds->spt_pathcpthld != 0xffff) {
6301                                 error = EINVAL;
6302                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6303                                 break;
6304                         }
6305                         if (stcb != NULL) {
6306                                 if (net != NULL) {
6307                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6308                                         net->pf_threshold = thlds->spt_pathpfthld;
6309                                         if (net->dest_state & SCTP_ADDR_PF) {
6310                                                 if ((net->error_count > net->failure_threshold) ||
6311                                                     (net->error_count <= net->pf_threshold)) {
6312                                                         net->dest_state &= ~SCTP_ADDR_PF;
6313                                                 }
6314                                         } else {
6315                                                 if ((net->error_count > net->pf_threshold) &&
6316                                                     (net->error_count <= net->failure_threshold)) {
6317                                                         net->dest_state |= SCTP_ADDR_PF;
6318                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6319                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6320                                                             stcb->sctp_ep, stcb, net,
6321                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6322                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6323                                                 }
6324                                         }
6325                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6326                                                 if (net->error_count > net->failure_threshold) {
6327                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6328                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6329                                                 }
6330                                         } else {
6331                                                 if (net->error_count <= net->failure_threshold) {
6332                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6333                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6334                                                 }
6335                                         }
6336                                 } else {
6337                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6338                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6339                                                 net->pf_threshold = thlds->spt_pathpfthld;
6340                                                 if (net->dest_state & SCTP_ADDR_PF) {
6341                                                         if ((net->error_count > net->failure_threshold) ||
6342                                                             (net->error_count <= net->pf_threshold)) {
6343                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6344                                                         }
6345                                                 } else {
6346                                                         if ((net->error_count > net->pf_threshold) &&
6347                                                             (net->error_count <= net->failure_threshold)) {
6348                                                                 net->dest_state |= SCTP_ADDR_PF;
6349                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6350                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6351                                                                     stcb->sctp_ep, stcb, net,
6352                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6353                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6354                                                         }
6355                                                 }
6356                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6357                                                         if (net->error_count > net->failure_threshold) {
6358                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6359                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6360                                                         }
6361                                                 } else {
6362                                                         if (net->error_count <= net->failure_threshold) {
6363                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6364                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6365                                                         }
6366                                                 }
6367                                         }
6368                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6369                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6370                                 }
6371                                 SCTP_TCB_UNLOCK(stcb);
6372                         } else {
6373                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6374                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6375                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6376                                         SCTP_INP_WLOCK(inp);
6377                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6378                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6379                                         SCTP_INP_WUNLOCK(inp);
6380                                 } else {
6381                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6382                                         error = EINVAL;
6383                                 }
6384                         }
6385                         break;
6386                 }
6387         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6388                 {
6389                         struct sctp_udpencaps *encaps;
6390                         struct sctp_nets *net;
6391                         struct sockaddr *addr;
6392 #if defined(INET) && defined(INET6)
6393                         struct sockaddr_in sin_store;
6394 #endif
6395
6396                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6397                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6398
6399 #if defined(INET) && defined(INET6)
6400                         if (encaps->sue_address.ss_family == AF_INET6) {
6401                                 struct sockaddr_in6 *sin6;
6402
6403                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6404                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6405                                         in6_sin6_2_sin(&sin_store, sin6);
6406                                         addr = (struct sockaddr *)&sin_store;
6407                                 } else {
6408                                         addr = (struct sockaddr *)&encaps->sue_address;
6409                                 }
6410                         } else {
6411                                 addr = (struct sockaddr *)&encaps->sue_address;
6412                         }
6413 #else
6414                         addr = (struct sockaddr *)&encaps->sue_address;
6415 #endif
6416                         if (stcb != NULL) {
6417                                 net = sctp_findnet(stcb, addr);
6418                         } else {
6419                                 /*
6420                                  * We increment here since
6421                                  * sctp_findassociation_ep_addr() wil do a
6422                                  * decrement if it finds the stcb as long as
6423                                  * the locked tcb (last argument) is NOT a
6424                                  * TCB.. aka NULL.
6425                                  */
6426                                 net = NULL;
6427                                 SCTP_INP_INCR_REF(inp);
6428                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6429                                 if (stcb == NULL) {
6430                                         SCTP_INP_DECR_REF(inp);
6431                                 }
6432                         }
6433                         if ((stcb != NULL) && (net == NULL)) {
6434 #ifdef INET
6435                                 if (addr->sa_family == AF_INET) {
6436
6437                                         struct sockaddr_in *sin;
6438
6439                                         sin = (struct sockaddr_in *)addr;
6440                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6441                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6442                                                 SCTP_TCB_UNLOCK(stcb);
6443                                                 error = EINVAL;
6444                                                 break;
6445                                         }
6446                                 } else
6447 #endif
6448 #ifdef INET6
6449                                 if (addr->sa_family == AF_INET6) {
6450                                         struct sockaddr_in6 *sin6;
6451
6452                                         sin6 = (struct sockaddr_in6 *)addr;
6453                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6454                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6455                                                 SCTP_TCB_UNLOCK(stcb);
6456                                                 error = EINVAL;
6457                                                 break;
6458                                         }
6459                                 } else
6460 #endif
6461                                 {
6462                                         error = EAFNOSUPPORT;
6463                                         SCTP_TCB_UNLOCK(stcb);
6464                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6465                                         break;
6466                                 }
6467                         }
6468                         if (stcb != NULL) {
6469                                 if (net != NULL) {
6470                                         net->port = encaps->sue_port;
6471                                 } else {
6472                                         stcb->asoc.port = encaps->sue_port;
6473                                 }
6474                                 SCTP_TCB_UNLOCK(stcb);
6475                         } else {
6476                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6477                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6478                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6479                                         SCTP_INP_WLOCK(inp);
6480                                         inp->sctp_ep.port = encaps->sue_port;
6481                                         SCTP_INP_WUNLOCK(inp);
6482                                 } else {
6483                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6484                                         error = EINVAL;
6485                                 }
6486                         }
6487                         break;
6488                 }
6489         case SCTP_ECN_SUPPORTED:
6490                 {
6491                         struct sctp_assoc_value *av;
6492
6493                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6494                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6495
6496                         if (stcb) {
6497                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6498                                 error = EINVAL;
6499                                 SCTP_TCB_UNLOCK(stcb);
6500                         } else {
6501                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6502                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6503                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6504                                         SCTP_INP_WLOCK(inp);
6505                                         if (av->assoc_value == 0) {
6506                                                 inp->ecn_supported = 0;
6507                                         } else {
6508                                                 inp->ecn_supported = 1;
6509                                         }
6510                                         SCTP_INP_WUNLOCK(inp);
6511                                 } else {
6512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6513                                         error = EINVAL;
6514                                 }
6515                         }
6516                         break;
6517                 }
6518         case SCTP_PR_SUPPORTED:
6519                 {
6520                         struct sctp_assoc_value *av;
6521
6522                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6523                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6524
6525                         if (stcb) {
6526                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6527                                 error = EINVAL;
6528                                 SCTP_TCB_UNLOCK(stcb);
6529                         } else {
6530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6532                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6533                                         SCTP_INP_WLOCK(inp);
6534                                         if (av->assoc_value == 0) {
6535                                                 inp->prsctp_supported = 0;
6536                                         } else {
6537                                                 inp->prsctp_supported = 1;
6538                                         }
6539                                         SCTP_INP_WUNLOCK(inp);
6540                                 } else {
6541                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6542                                         error = EINVAL;
6543                                 }
6544                         }
6545                         break;
6546                 }
6547         case SCTP_AUTH_SUPPORTED:
6548                 {
6549                         struct sctp_assoc_value *av;
6550
6551                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6552                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6553
6554                         if (stcb) {
6555                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6556                                 error = EINVAL;
6557                                 SCTP_TCB_UNLOCK(stcb);
6558                         } else {
6559                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6560                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6561                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6562                                         if ((av->assoc_value == 0) &&
6563                                             (inp->asconf_supported == 1)) {
6564                                                 /*
6565                                                  * AUTH is required for
6566                                                  * ASCONF
6567                                                  */
6568                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6569                                                 error = EINVAL;
6570                                         } else {
6571                                                 SCTP_INP_WLOCK(inp);
6572                                                 if (av->assoc_value == 0) {
6573                                                         inp->auth_supported = 0;
6574                                                 } else {
6575                                                         inp->auth_supported = 1;
6576                                                 }
6577                                                 SCTP_INP_WUNLOCK(inp);
6578                                         }
6579                                 } else {
6580                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6581                                         error = EINVAL;
6582                                 }
6583                         }
6584                         break;
6585                 }
6586         case SCTP_ASCONF_SUPPORTED:
6587                 {
6588                         struct sctp_assoc_value *av;
6589
6590                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6591                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6592
6593                         if (stcb) {
6594                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6595                                 error = EINVAL;
6596                                 SCTP_TCB_UNLOCK(stcb);
6597                         } else {
6598                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6599                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6600                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6601                                         if ((av->assoc_value != 0) &&
6602                                             (inp->auth_supported == 0)) {
6603                                                 /*
6604                                                  * AUTH is required for
6605                                                  * ASCONF
6606                                                  */
6607                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6608                                                 error = EINVAL;
6609                                         } else {
6610                                                 SCTP_INP_WLOCK(inp);
6611                                                 if (av->assoc_value == 0) {
6612                                                         inp->asconf_supported = 0;
6613                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6614                                                             inp->sctp_ep.local_auth_chunks);
6615                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6616                                                             inp->sctp_ep.local_auth_chunks);
6617                                                 } else {
6618                                                         inp->asconf_supported = 1;
6619                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6620                                                             inp->sctp_ep.local_auth_chunks);
6621                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6622                                                             inp->sctp_ep.local_auth_chunks);
6623                                                 }
6624                                                 SCTP_INP_WUNLOCK(inp);
6625                                         }
6626                                 } else {
6627                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6628                                         error = EINVAL;
6629                                 }
6630                         }
6631                         break;
6632                 }
6633         case SCTP_RECONFIG_SUPPORTED:
6634                 {
6635                         struct sctp_assoc_value *av;
6636
6637                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6638                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6639
6640                         if (stcb) {
6641                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6642                                 error = EINVAL;
6643                                 SCTP_TCB_UNLOCK(stcb);
6644                         } else {
6645                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6646                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6647                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6648                                         SCTP_INP_WLOCK(inp);
6649                                         if (av->assoc_value == 0) {
6650                                                 inp->reconfig_supported = 0;
6651                                         } else {
6652                                                 inp->reconfig_supported = 1;
6653                                         }
6654                                         SCTP_INP_WUNLOCK(inp);
6655                                 } else {
6656                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6657                                         error = EINVAL;
6658                                 }
6659                         }
6660                         break;
6661                 }
6662         case SCTP_NRSACK_SUPPORTED:
6663                 {
6664                         struct sctp_assoc_value *av;
6665
6666                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6667                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6668
6669                         if (stcb) {
6670                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6671                                 error = EINVAL;
6672                                 SCTP_TCB_UNLOCK(stcb);
6673                         } else {
6674                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6675                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6676                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6677                                         SCTP_INP_WLOCK(inp);
6678                                         if (av->assoc_value == 0) {
6679                                                 inp->nrsack_supported = 0;
6680                                         } else {
6681                                                 inp->nrsack_supported = 1;
6682                                         }
6683                                         SCTP_INP_WUNLOCK(inp);
6684                                 } else {
6685                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6686                                         error = EINVAL;
6687                                 }
6688                         }
6689                         break;
6690                 }
6691         case SCTP_PKTDROP_SUPPORTED:
6692                 {
6693                         struct sctp_assoc_value *av;
6694
6695                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6696                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6697
6698                         if (stcb) {
6699                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6700                                 error = EINVAL;
6701                                 SCTP_TCB_UNLOCK(stcb);
6702                         } else {
6703                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6704                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6705                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6706                                         SCTP_INP_WLOCK(inp);
6707                                         if (av->assoc_value == 0) {
6708                                                 inp->pktdrop_supported = 0;
6709                                         } else {
6710                                                 inp->pktdrop_supported = 1;
6711                                         }
6712                                         SCTP_INP_WUNLOCK(inp);
6713                                 } else {
6714                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6715                                         error = EINVAL;
6716                                 }
6717                         }
6718                         break;
6719                 }
6720         case SCTP_MAX_CWND:
6721                 {
6722                         struct sctp_assoc_value *av;
6723                         struct sctp_nets *net;
6724
6725                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6726                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6727
6728                         if (stcb) {
6729                                 stcb->asoc.max_cwnd = av->assoc_value;
6730                                 if (stcb->asoc.max_cwnd > 0) {
6731                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6732                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6733                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6734                                                         net->cwnd = stcb->asoc.max_cwnd;
6735                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6736                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6737                                                         }
6738                                                 }
6739                                         }
6740                                 }
6741                                 SCTP_TCB_UNLOCK(stcb);
6742                         } else {
6743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6746                                         SCTP_INP_WLOCK(inp);
6747                                         inp->max_cwnd = av->assoc_value;
6748                                         SCTP_INP_WUNLOCK(inp);
6749                                 } else {
6750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6751                                         error = EINVAL;
6752                                 }
6753                         }
6754                         break;
6755                 }
6756         default:
6757                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6758                 error = ENOPROTOOPT;
6759                 break;
6760         }                       /* end switch (opt) */
6761         return (error);
6762 }
6763
6764 int
6765 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6766 {
6767         void *optval = NULL;
6768         size_t optsize = 0;
6769         void *p;
6770         int error = 0;
6771         struct sctp_inpcb *inp;
6772
6773         if ((sopt->sopt_level == SOL_SOCKET) &&
6774             (sopt->sopt_name == SO_SETFIB)) {
6775                 inp = (struct sctp_inpcb *)so->so_pcb;
6776                 if (inp == NULL) {
6777                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6778                         return (EINVAL);
6779                 }
6780                 SCTP_INP_WLOCK(inp);
6781                 inp->fibnum = so->so_fibnum;
6782                 SCTP_INP_WUNLOCK(inp);
6783                 return (0);
6784         }
6785         if (sopt->sopt_level != IPPROTO_SCTP) {
6786                 /* wrong proto level... send back up to IP */
6787 #ifdef INET6
6788                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6789                         error = ip6_ctloutput(so, sopt);
6790 #endif                          /* INET6 */
6791 #if defined(INET) && defined(INET6)
6792                 else
6793 #endif
6794 #ifdef INET
6795                         error = ip_ctloutput(so, sopt);
6796 #endif
6797                 return (error);
6798         }
6799         optsize = sopt->sopt_valsize;
6800         if (optsize) {
6801                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6802                 if (optval == NULL) {
6803                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6804                         return (ENOBUFS);
6805                 }
6806                 error = sooptcopyin(sopt, optval, optsize, optsize);
6807                 if (error) {
6808                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6809                         goto out;
6810                 }
6811         }
6812         p = (void *)sopt->sopt_td;
6813         if (sopt->sopt_dir == SOPT_SET) {
6814                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6815         } else if (sopt->sopt_dir == SOPT_GET) {
6816                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6817         } else {
6818                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6819                 error = EINVAL;
6820         }
6821         if ((error == 0) && (optval != NULL)) {
6822                 error = sooptcopyout(sopt, optval, optsize);
6823                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6824         } else if (optval != NULL) {
6825                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6826         }
6827 out:
6828         return (error);
6829 }
6830
6831 #ifdef INET
6832 static int
6833 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6834 {
6835         int error = 0;
6836         int create_lock_on = 0;
6837         uint32_t vrf_id;
6838         struct sctp_inpcb *inp;
6839         struct sctp_tcb *stcb = NULL;
6840
6841         inp = (struct sctp_inpcb *)so->so_pcb;
6842         if (inp == NULL) {
6843                 /* I made the same as TCP since we are not setup? */
6844                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6845                 return (ECONNRESET);
6846         }
6847         if (addr == NULL) {
6848                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6849                 return EINVAL;
6850         }
6851         switch (addr->sa_family) {
6852 #ifdef INET6
6853         case AF_INET6:
6854                 {
6855                         struct sockaddr_in6 *sin6p;
6856
6857                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6858                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6859                                 return (EINVAL);
6860                         }
6861                         sin6p = (struct sockaddr_in6 *)addr;
6862                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6864                                 return (error);
6865                         }
6866                         break;
6867                 }
6868 #endif
6869 #ifdef INET
6870         case AF_INET:
6871                 {
6872                         struct sockaddr_in *sinp;
6873
6874                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6876                                 return (EINVAL);
6877                         }
6878                         sinp = (struct sockaddr_in *)addr;
6879                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6880                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6881                                 return (error);
6882                         }
6883                         break;
6884                 }
6885 #endif
6886         default:
6887                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6888                 return (EAFNOSUPPORT);
6889         }
6890         SCTP_INP_INCR_REF(inp);
6891         SCTP_ASOC_CREATE_LOCK(inp);
6892         create_lock_on = 1;
6893
6894
6895         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6896             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6897                 /* Should I really unlock ? */
6898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6899                 error = EFAULT;
6900                 goto out_now;
6901         }
6902 #ifdef INET6
6903         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6904             (addr->sa_family == AF_INET6)) {
6905                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6906                 error = EINVAL;
6907                 goto out_now;
6908         }
6909 #endif
6910         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6911             SCTP_PCB_FLAGS_UNBOUND) {
6912                 /* Bind a ephemeral port */
6913                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6914                 if (error) {
6915                         goto out_now;
6916                 }
6917         }
6918         /* Now do we connect? */
6919         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6920             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6921                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6922                 error = EINVAL;
6923                 goto out_now;
6924         }
6925         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6926             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6927                 /* We are already connected AND the TCP model */
6928                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6929                 error = EADDRINUSE;
6930                 goto out_now;
6931         }
6932         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6933                 SCTP_INP_RLOCK(inp);
6934                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6935                 SCTP_INP_RUNLOCK(inp);
6936         } else {
6937                 /*
6938                  * We increment here since sctp_findassociation_ep_addr()
6939                  * will do a decrement if it finds the stcb as long as the
6940                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6941                  */
6942                 SCTP_INP_INCR_REF(inp);
6943                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6944                 if (stcb == NULL) {
6945                         SCTP_INP_DECR_REF(inp);
6946                 } else {
6947                         SCTP_TCB_UNLOCK(stcb);
6948                 }
6949         }
6950         if (stcb != NULL) {
6951                 /* Already have or am bring up an association */
6952                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6953                 error = EALREADY;
6954                 goto out_now;
6955         }
6956         vrf_id = inp->def_vrf_id;
6957         /* We are GOOD to go */
6958         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
6959             inp->sctp_ep.pre_open_stream_count,
6960             inp->sctp_ep.port, p);
6961         if (stcb == NULL) {
6962                 /* Gak! no memory */
6963                 goto out_now;
6964         }
6965         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6966                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6967                 /* Set the connected flag so we can queue data */
6968                 soisconnecting(so);
6969         }
6970         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6971         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6972
6973         /* initialize authentication parameters for the assoc */
6974         sctp_initialize_auth_params(inp, stcb);
6975
6976         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6977         SCTP_TCB_UNLOCK(stcb);
6978 out_now:
6979         if (create_lock_on) {
6980                 SCTP_ASOC_CREATE_UNLOCK(inp);
6981         }
6982         SCTP_INP_DECR_REF(inp);
6983         return (error);
6984 }
6985 #endif
6986
6987 int
6988 sctp_listen(struct socket *so, int backlog, struct thread *p)
6989 {
6990         /*
6991          * Note this module depends on the protocol processing being called
6992          * AFTER any socket level flags and backlog are applied to the
6993          * socket. The traditional way that the socket flags are applied is
6994          * AFTER protocol processing. We have made a change to the
6995          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6996          * place if the socket API for SCTP is to work properly.
6997          */
6998
6999         int error = 0;
7000         struct sctp_inpcb *inp;
7001
7002         inp = (struct sctp_inpcb *)so->so_pcb;
7003         if (inp == NULL) {
7004                 /* I made the same as TCP since we are not setup? */
7005                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7006                 return (ECONNRESET);
7007         }
7008         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7009                 /* See if we have a listener */
7010                 struct sctp_inpcb *tinp;
7011                 union sctp_sockstore store;
7012
7013                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7014                         /* not bound all */
7015                         struct sctp_laddr *laddr;
7016
7017                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7018                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7019                                 switch (store.sa.sa_family) {
7020 #ifdef INET
7021                                 case AF_INET:
7022                                         store.sin.sin_port = inp->sctp_lport;
7023                                         break;
7024 #endif
7025 #ifdef INET6
7026                                 case AF_INET6:
7027                                         store.sin6.sin6_port = inp->sctp_lport;
7028                                         break;
7029 #endif
7030                                 default:
7031                                         break;
7032                                 }
7033                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7034                                 if (tinp && (tinp != inp) &&
7035                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7036                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7037                                     (tinp->sctp_socket->so_qlimit)) {
7038                                         /*
7039                                          * we have a listener already and
7040                                          * its not this inp.
7041                                          */
7042                                         SCTP_INP_DECR_REF(tinp);
7043                                         return (EADDRINUSE);
7044                                 } else if (tinp) {
7045                                         SCTP_INP_DECR_REF(tinp);
7046                                 }
7047                         }
7048                 } else {
7049                         /* Setup a local addr bound all */
7050                         memset(&store, 0, sizeof(store));
7051 #ifdef INET6
7052                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7053                                 store.sa.sa_family = AF_INET6;
7054                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7055                         }
7056 #endif
7057 #ifdef INET
7058                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7059                                 store.sa.sa_family = AF_INET;
7060                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7061                         }
7062 #endif
7063                         switch (store.sa.sa_family) {
7064 #ifdef INET
7065                         case AF_INET:
7066                                 store.sin.sin_port = inp->sctp_lport;
7067                                 break;
7068 #endif
7069 #ifdef INET6
7070                         case AF_INET6:
7071                                 store.sin6.sin6_port = inp->sctp_lport;
7072                                 break;
7073 #endif
7074                         default:
7075                                 break;
7076                         }
7077                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7078                         if (tinp && (tinp != inp) &&
7079                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7080                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7081                             (tinp->sctp_socket->so_qlimit)) {
7082                                 /*
7083                                  * we have a listener already and its not
7084                                  * this inp.
7085                                  */
7086                                 SCTP_INP_DECR_REF(tinp);
7087                                 return (EADDRINUSE);
7088                         } else if (tinp) {
7089                                 SCTP_INP_DECR_REF(tinp);
7090                         }
7091                 }
7092         }
7093         SCTP_INP_RLOCK(inp);
7094 #ifdef SCTP_LOCK_LOGGING
7095         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7096                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7097         }
7098 #endif
7099         SOCK_LOCK(so);
7100         error = solisten_proto_check(so);
7101         SOCK_UNLOCK(so);
7102         if (error) {
7103                 SCTP_INP_RUNLOCK(inp);
7104                 return (error);
7105         }
7106         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7107             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7108                 /*
7109                  * The unlucky case - We are in the tcp pool with this guy.
7110                  * - Someone else is in the main inp slot. - We must move
7111                  * this guy (the listener) to the main slot - We must then
7112                  * move the guy that was listener to the TCP Pool.
7113                  */
7114                 if (sctp_swap_inpcb_for_listen(inp)) {
7115                         SCTP_INP_RUNLOCK(inp);
7116                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7117                         return (EADDRINUSE);
7118                 }
7119         }
7120         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7121             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7122                 /* We are already connected AND the TCP model */
7123                 SCTP_INP_RUNLOCK(inp);
7124                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7125                 return (EADDRINUSE);
7126         }
7127         SCTP_INP_RUNLOCK(inp);
7128         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7129                 /* We must do a bind. */
7130                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7131                         /* bind error, probably perm */
7132                         return (error);
7133                 }
7134         }
7135         SOCK_LOCK(so);
7136         /* It appears for 7.0 and on, we must always call this. */
7137         solisten_proto(so, backlog);
7138         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7139                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7140                 so->so_options &= ~SO_ACCEPTCONN;
7141         }
7142         if (backlog == 0) {
7143                 /* turning off listen */
7144                 so->so_options &= ~SO_ACCEPTCONN;
7145         }
7146         SOCK_UNLOCK(so);
7147         return (error);
7148 }
7149
7150 static int sctp_defered_wakeup_cnt = 0;
7151
7152 int
7153 sctp_accept(struct socket *so, struct sockaddr **addr)
7154 {
7155         struct sctp_tcb *stcb;
7156         struct sctp_inpcb *inp;
7157         union sctp_sockstore store;
7158 #ifdef INET6
7159         int error;
7160 #endif
7161         inp = (struct sctp_inpcb *)so->so_pcb;
7162
7163         if (inp == NULL) {
7164                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7165                 return (ECONNRESET);
7166         }
7167         SCTP_INP_RLOCK(inp);
7168         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7169                 SCTP_INP_RUNLOCK(inp);
7170                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7171                 return (EOPNOTSUPP);
7172         }
7173         if (so->so_state & SS_ISDISCONNECTED) {
7174                 SCTP_INP_RUNLOCK(inp);
7175                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7176                 return (ECONNABORTED);
7177         }
7178         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7179         if (stcb == NULL) {
7180                 SCTP_INP_RUNLOCK(inp);
7181                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7182                 return (ECONNRESET);
7183         }
7184         SCTP_TCB_LOCK(stcb);
7185         SCTP_INP_RUNLOCK(inp);
7186         store = stcb->asoc.primary_destination->ro._l_addr;
7187         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7188         SCTP_TCB_UNLOCK(stcb);
7189         switch (store.sa.sa_family) {
7190 #ifdef INET
7191         case AF_INET:
7192                 {
7193                         struct sockaddr_in *sin;
7194
7195                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7196                         if (sin == NULL)
7197                                 return (ENOMEM);
7198                         sin->sin_family = AF_INET;
7199                         sin->sin_len = sizeof(*sin);
7200                         sin->sin_port = store.sin.sin_port;
7201                         sin->sin_addr = store.sin.sin_addr;
7202                         *addr = (struct sockaddr *)sin;
7203                         break;
7204                 }
7205 #endif
7206 #ifdef INET6
7207         case AF_INET6:
7208                 {
7209                         struct sockaddr_in6 *sin6;
7210
7211                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7212                         if (sin6 == NULL)
7213                                 return (ENOMEM);
7214                         sin6->sin6_family = AF_INET6;
7215                         sin6->sin6_len = sizeof(*sin6);
7216                         sin6->sin6_port = store.sin6.sin6_port;
7217                         sin6->sin6_addr = store.sin6.sin6_addr;
7218                         if ((error = sa6_recoverscope(sin6)) != 0) {
7219                                 SCTP_FREE_SONAME(sin6);
7220                                 return (error);
7221                         }
7222                         *addr = (struct sockaddr *)sin6;
7223                         break;
7224                 }
7225 #endif
7226         default:
7227                 /* TSNH */
7228                 break;
7229         }
7230         /* Wake any delayed sleep action */
7231         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7232                 SCTP_INP_WLOCK(inp);
7233                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7234                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7235                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7236                         SCTP_INP_WUNLOCK(inp);
7237                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7238                         if (sowriteable(inp->sctp_socket)) {
7239                                 sowwakeup_locked(inp->sctp_socket);
7240                         } else {
7241                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7242                         }
7243                         SCTP_INP_WLOCK(inp);
7244                 }
7245                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7246                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7247                         SCTP_INP_WUNLOCK(inp);
7248                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7249                         if (soreadable(inp->sctp_socket)) {
7250                                 sctp_defered_wakeup_cnt++;
7251                                 sorwakeup_locked(inp->sctp_socket);
7252                         } else {
7253                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7254                         }
7255                         SCTP_INP_WLOCK(inp);
7256                 }
7257                 SCTP_INP_WUNLOCK(inp);
7258         }
7259         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7260                 SCTP_TCB_LOCK(stcb);
7261                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7262                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7263         }
7264         return (0);
7265 }
7266
7267 #ifdef INET
7268 int
7269 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7270 {
7271         struct sockaddr_in *sin;
7272         uint32_t vrf_id;
7273         struct sctp_inpcb *inp;
7274         struct sctp_ifa *sctp_ifa;
7275
7276         /*
7277          * Do the malloc first in case it blocks.
7278          */
7279         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7280         if (sin == NULL)
7281                 return (ENOMEM);
7282         sin->sin_family = AF_INET;
7283         sin->sin_len = sizeof(*sin);
7284         inp = (struct sctp_inpcb *)so->so_pcb;
7285         if (!inp) {
7286                 SCTP_FREE_SONAME(sin);
7287                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7288                 return (ECONNRESET);
7289         }
7290         SCTP_INP_RLOCK(inp);
7291         sin->sin_port = inp->sctp_lport;
7292         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7293                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7294                         struct sctp_tcb *stcb;
7295                         struct sockaddr_in *sin_a;
7296                         struct sctp_nets *net;
7297                         int fnd;
7298
7299                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7300                         if (stcb == NULL) {
7301                                 goto notConn;
7302                         }
7303                         fnd = 0;
7304                         sin_a = NULL;
7305                         SCTP_TCB_LOCK(stcb);
7306                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7307                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7308                                 if (sin_a == NULL)
7309                                         /* this will make coverity happy */
7310                                         continue;
7311
7312                                 if (sin_a->sin_family == AF_INET) {
7313                                         fnd = 1;
7314                                         break;
7315                                 }
7316                         }
7317                         if ((!fnd) || (sin_a == NULL)) {
7318                                 /* punt */
7319                                 SCTP_TCB_UNLOCK(stcb);
7320                                 goto notConn;
7321                         }
7322                         vrf_id = inp->def_vrf_id;
7323                         sctp_ifa = sctp_source_address_selection(inp,
7324                             stcb,
7325                             (sctp_route_t *)&net->ro,
7326                             net, 0, vrf_id);
7327                         if (sctp_ifa) {
7328                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7329                                 sctp_free_ifa(sctp_ifa);
7330                         }
7331                         SCTP_TCB_UNLOCK(stcb);
7332                 } else {
7333                         /* For the bound all case you get back 0 */
7334         notConn:
7335                         sin->sin_addr.s_addr = 0;
7336                 }
7337
7338         } else {
7339                 /* Take the first IPv4 address in the list */
7340                 struct sctp_laddr *laddr;
7341                 int fnd = 0;
7342
7343                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7344                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7345                                 struct sockaddr_in *sin_a;
7346
7347                                 sin_a = &laddr->ifa->address.sin;
7348                                 sin->sin_addr = sin_a->sin_addr;
7349                                 fnd = 1;
7350                                 break;
7351                         }
7352                 }
7353                 if (!fnd) {
7354                         SCTP_FREE_SONAME(sin);
7355                         SCTP_INP_RUNLOCK(inp);
7356                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7357                         return (ENOENT);
7358                 }
7359         }
7360         SCTP_INP_RUNLOCK(inp);
7361         (*addr) = (struct sockaddr *)sin;
7362         return (0);
7363 }
7364
7365 int
7366 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7367 {
7368         struct sockaddr_in *sin;
7369         int fnd;
7370         struct sockaddr_in *sin_a;
7371         struct sctp_inpcb *inp;
7372         struct sctp_tcb *stcb;
7373         struct sctp_nets *net;
7374
7375         /* Do the malloc first in case it blocks. */
7376         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7377         if (sin == NULL)
7378                 return (ENOMEM);
7379         sin->sin_family = AF_INET;
7380         sin->sin_len = sizeof(*sin);
7381
7382         inp = (struct sctp_inpcb *)so->so_pcb;
7383         if ((inp == NULL) ||
7384             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7385                 /* UDP type and listeners will drop out here */
7386                 SCTP_FREE_SONAME(sin);
7387                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7388                 return (ENOTCONN);
7389         }
7390         SCTP_INP_RLOCK(inp);
7391         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7392         if (stcb) {
7393                 SCTP_TCB_LOCK(stcb);
7394         }
7395         SCTP_INP_RUNLOCK(inp);
7396         if (stcb == NULL) {
7397                 SCTP_FREE_SONAME(sin);
7398                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7399                 return (ECONNRESET);
7400         }
7401         fnd = 0;
7402         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7403                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7404                 if (sin_a->sin_family == AF_INET) {
7405                         fnd = 1;
7406                         sin->sin_port = stcb->rport;
7407                         sin->sin_addr = sin_a->sin_addr;
7408                         break;
7409                 }
7410         }
7411         SCTP_TCB_UNLOCK(stcb);
7412         if (!fnd) {
7413                 /* No IPv4 address */
7414                 SCTP_FREE_SONAME(sin);
7415                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7416                 return (ENOENT);
7417         }
7418         (*addr) = (struct sockaddr *)sin;
7419         return (0);
7420 }
7421
7422 struct pr_usrreqs sctp_usrreqs = {
7423         .pru_abort = sctp_abort,
7424         .pru_accept = sctp_accept,
7425         .pru_attach = sctp_attach,
7426         .pru_bind = sctp_bind,
7427         .pru_connect = sctp_connect,
7428         .pru_control = in_control,
7429         .pru_close = sctp_close,
7430         .pru_detach = sctp_close,
7431         .pru_sopoll = sopoll_generic,
7432         .pru_flush = sctp_flush,
7433         .pru_disconnect = sctp_disconnect,
7434         .pru_listen = sctp_listen,
7435         .pru_peeraddr = sctp_peeraddr,
7436         .pru_send = sctp_sendm,
7437         .pru_shutdown = sctp_shutdown,
7438         .pru_sockaddr = sctp_ingetaddr,
7439         .pru_sosend = sctp_sosend,
7440         .pru_soreceive = sctp_soreceive
7441 };
7442 #endif