sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56
  57
  58
  59 extern const struct sctp_cc_functions sctp_cc_functions[];
  60 extern const struct sctp_ss_functions sctp_ss_functions[];
  61
  62 void
  63 sctp_init(void)
  64 {
  65         u_long sb_max_adj;
  66
  67         /* Initialize and modify the sysctled variables */
  68         sctp_init_sysctls();
  69         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  70                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  71         /*
  72          * Allow a user to take no more than 1/2 the number of clusters or
  73          * the SB_MAX whichever is smaller for the send window.
  74          */
  75         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  76         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  77             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  78         /*
  79          * Now for the recv window, should we take the same amount? or
  80          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  81          * now I will just copy.
  82          */
  83         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  84         SCTP_BASE_VAR(first_time) = 0;
  85         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  86         sctp_pcb_init();
  87 #if defined(SCTP_PACKET_LOGGING)
  88         SCTP_BASE_VAR(packet_log_writers) = 0;
  89         SCTP_BASE_VAR(packet_log_end) = 0;
  90         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  91 #endif
  92 }
  93
  94 #ifdef VIMAGE
  95 static void
  96 sctp_finish(void *unused __unused)
  97 {
  98         sctp_pcb_finish();
  99 }
 100
 101 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 102 #endif
 103
 104 void
 105 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 106 {
 107         struct sctp_tmit_chunk *chk;
 108         uint16_t overhead;
 109
 110         /* Adjust that too */
 111         stcb->asoc.smallest_mtu = nxtsz;
 112         /* now off to subtract IP_DF flag if needed */
 113         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 114         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 115                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 116         }
 117         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 118                 if ((chk->send_size + overhead) > nxtsz) {
 119                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 120                 }
 121         }
 122         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 123                 if ((chk->send_size + overhead) > nxtsz) {
 124                         /*
 125                          * For this guy we also mark for immediate resend
 126                          * since we sent to big of chunk
 127                          */
 128                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 129                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 130                                 sctp_flight_size_decrease(chk);
 131                                 sctp_total_flight_decrease(stcb, chk);
 132                                 chk->sent = SCTP_DATAGRAM_RESEND;
 133                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 134                                 chk->rec.data.doing_fast_retransmit = 0;
 135                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 136                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 137                                             chk->whoTo->flight_size,
 138                                             chk->book_size,
 139                                             (uint32_t)(uintptr_t)chk->whoTo,
 140                                             chk->rec.data.tsn);
 141                                 }
 142                                 /* Clear any time so NO RTT is being done */
 143                                 chk->do_rtt = 0;
 144                         }
 145                 }
 146         }
 147 }
 148
 149 #ifdef INET
 150 void
 151 sctp_notify(struct sctp_inpcb *inp,
 152     struct sctp_tcb *stcb,
 153     struct sctp_nets *net,
 154     uint8_t icmp_type,
 155     uint8_t icmp_code,
 156     uint16_t ip_len,
 157     uint32_t next_mtu)
 158 {
 159 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 160         struct socket *so;
 161 #endif
 162         int timer_stopped;
 163
 164         if (icmp_type != ICMP_UNREACH) {
 165                 /* We only care about unreachable */
 166                 SCTP_TCB_UNLOCK(stcb);
 167                 return;
 168         }
 169         if ((icmp_code == ICMP_UNREACH_NET) ||
 170             (icmp_code == ICMP_UNREACH_HOST) ||
 171             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 172             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 173             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 174             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 175             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 176             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 177                 /* Mark the net unreachable. */
 178                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 179                         /* OK, that destination is NOT reachable. */
 180                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 181                         net->dest_state &= ~SCTP_ADDR_PF;
 182                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 183                             stcb, 0,
 184                             (void *)net, SCTP_SO_NOT_LOCKED);
 185                 }
 186                 SCTP_TCB_UNLOCK(stcb);
 187         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 188             (icmp_code == ICMP_UNREACH_PORT)) {
 189                 /* Treat it like an ABORT. */
 190                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 191 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 192                 so = SCTP_INP_SO(inp);
 193                 atomic_add_int(&stcb->asoc.refcnt, 1);
 194                 SCTP_TCB_UNLOCK(stcb);
 195                 SCTP_SOCKET_LOCK(so, 1);
 196                 SCTP_TCB_LOCK(stcb);
 197                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 198 #endif
 199                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 200                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 201 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 202                 SCTP_SOCKET_UNLOCK(so, 1);
 203                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 204 #endif
 205                 /* no need to unlock here, since the TCB is gone */
 206         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 207                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 208                         SCTP_TCB_UNLOCK(stcb);
 209                         return;
 210                 }
 211                 /* Find the next (smaller) MTU */
 212                 if (next_mtu == 0) {
 213                         /*
 214                          * Old type router that does not tell us what the
 215                          * next MTU is. Rats we will have to guess (in a
 216                          * educated fashion of course).
 217                          */
 218                         next_mtu = sctp_get_prev_mtu(ip_len);
 219                 }
 220                 /* Stop the PMTU timer. */
 221                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 222                         timer_stopped = 1;
 223                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 224                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 225                 } else {
 226                         timer_stopped = 0;
 227                 }
 228                 /* Update the path MTU. */
 229                 if (net->port) {
 230                         next_mtu -= sizeof(struct udphdr);
 231                 }
 232                 if (net->mtu > next_mtu) {
 233                         net->mtu = next_mtu;
 234                         if (net->port) {
 235                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 236                         } else {
 237                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 238                         }
 239                 }
 240                 /* Update the association MTU */
 241                 if (stcb->asoc.smallest_mtu > next_mtu) {
 242                         sctp_pathmtu_adjustment(stcb, next_mtu);
 243                 }
 244                 /* Finally, start the PMTU timer if it was running before. */
 245                 if (timer_stopped) {
 246                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 247                 }
 248                 SCTP_TCB_UNLOCK(stcb);
 249         } else {
 250                 SCTP_TCB_UNLOCK(stcb);
 251         }
 252 }
 253
 254 void
 255 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 256 {
 257         struct ip *outer_ip;
 258         struct ip *inner_ip;
 259         struct sctphdr *sh;
 260         struct icmp *icmp;
 261         struct sctp_inpcb *inp;
 262         struct sctp_tcb *stcb;
 263         struct sctp_nets *net;
 264         struct sctp_init_chunk *ch;
 265         struct sockaddr_in src, dst;
 266
 267         if (sa->sa_family != AF_INET ||
 268             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 269                 return;
 270         }
 271         if (PRC_IS_REDIRECT(cmd)) {
 272                 vip = NULL;
 273         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 274                 return;
 275         }
 276         if (vip != NULL) {
 277                 inner_ip = (struct ip *)vip;
 278                 icmp = (struct icmp *)((caddr_t)inner_ip -
 279                     (sizeof(struct icmp) - sizeof(struct ip)));
 280                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 281                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 282                 memset(&src, 0, sizeof(struct sockaddr_in));
 283                 src.sin_family = AF_INET;
 284                 src.sin_len = sizeof(struct sockaddr_in);
 285                 src.sin_port = sh->src_port;
 286                 src.sin_addr = inner_ip->ip_src;
 287                 memset(&dst, 0, sizeof(struct sockaddr_in));
 288                 dst.sin_family = AF_INET;
 289                 dst.sin_len = sizeof(struct sockaddr_in);
 290                 dst.sin_port = sh->dest_port;
 291                 dst.sin_addr = inner_ip->ip_dst;
 292                 /*
 293                  * 'dst' holds the dest of the packet that failed to be
 294                  * sent. 'src' holds our local endpoint address. Thus we
 295                  * reverse the dst and the src in the lookup.
 296                  */
 297                 inp = NULL;
 298                 net = NULL;
 299                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 300                     (struct sockaddr *)&src,
 301                     &inp, &net, 1,
 302                     SCTP_DEFAULT_VRFID);
 303                 if ((stcb != NULL) &&
 304                     (net != NULL) &&
 305                     (inp != NULL)) {
 306                         /* Check the verification tag */
 307                         if (ntohl(sh->v_tag) != 0) {
 308                                 /*
 309                                  * This must be the verification tag used
 310                                  * for sending out packets. We don't
 311                                  * consider packets reflecting the
 312                                  * verification tag.
 313                                  */
 314                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 315                                         SCTP_TCB_UNLOCK(stcb);
 316                                         return;
 317                                 }
 318                         } else {
 319                                 if (ntohs(outer_ip->ip_len) >=
 320                                     sizeof(struct ip) +
 321                                     8 + (inner_ip->ip_hl << 2) + 20) {
 322                                         /*
 323                                          * In this case we can check if we
 324                                          * got an INIT chunk and if the
 325                                          * initiate tag matches.
 326                                          */
 327                                         ch = (struct sctp_init_chunk *)(sh + 1);
 328                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 329                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 330                                                 SCTP_TCB_UNLOCK(stcb);
 331                                                 return;
 332                                         }
 333                                 } else {
 334                                         SCTP_TCB_UNLOCK(stcb);
 335                                         return;
 336                                 }
 337                         }
 338                         sctp_notify(inp, stcb, net,
 339                             icmp->icmp_type,
 340                             icmp->icmp_code,
 341                             ntohs(inner_ip->ip_len),
 342                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 343                 } else {
 344                         if ((stcb == NULL) && (inp != NULL)) {
 345                                 /* reduce ref-count */
 346                                 SCTP_INP_WLOCK(inp);
 347                                 SCTP_INP_DECR_REF(inp);
 348                                 SCTP_INP_WUNLOCK(inp);
 349                         }
 350                         if (stcb) {
 351                                 SCTP_TCB_UNLOCK(stcb);
 352                         }
 353                 }
 354         }
 355         return;
 356 }
 357 #endif
 358
 359 static int
 360 sctp_getcred(SYSCTL_HANDLER_ARGS)
 361 {
 362         struct xucred xuc;
 363         struct sockaddr_in addrs[2];
 364         struct sctp_inpcb *inp;
 365         struct sctp_nets *net;
 366         struct sctp_tcb *stcb;
 367         int error;
 368         uint32_t vrf_id;
 369
 370         /* FIX, for non-bsd is this right? */
 371         vrf_id = SCTP_DEFAULT_VRFID;
 372
 373         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 374
 375         if (error)
 376                 return (error);
 377
 378         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 379         if (error)
 380                 return (error);
 381
 382         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 383             sintosa(&addrs[0]),
 384             &inp, &net, 1, vrf_id);
 385         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 386                 if ((inp != NULL) && (stcb == NULL)) {
 387                         /* reduce ref-count */
 388                         SCTP_INP_WLOCK(inp);
 389                         SCTP_INP_DECR_REF(inp);
 390                         goto cred_can_cont;
 391                 }
 392
 393                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 394                 error = ENOENT;
 395                 goto out;
 396         }
 397         SCTP_TCB_UNLOCK(stcb);
 398         /*
 399          * We use the write lock here, only since in the error leg we need
 400          * it. If we used RLOCK, then we would have to
 401          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 402          * Better to use higher wlock.
 403          */
 404         SCTP_INP_WLOCK(inp);
 405 cred_can_cont:
 406         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 407         if (error) {
 408                 SCTP_INP_WUNLOCK(inp);
 409                 goto out;
 410         }
 411         cru2x(inp->sctp_socket->so_cred, &xuc);
 412         SCTP_INP_WUNLOCK(inp);
 413         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 414 out:
 415         return (error);
 416 }
 417
 418 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 419     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 420
 421
 422 #ifdef INET
 423 static void
 424 sctp_abort(struct socket *so)
 425 {
 426         struct sctp_inpcb *inp;
 427         uint32_t flags;
 428
 429         inp = (struct sctp_inpcb *)so->so_pcb;
 430         if (inp == NULL) {
 431                 return;
 432         }
 433
 434 sctp_must_try_again:
 435         flags = inp->sctp_flags;
 436 #ifdef SCTP_LOG_CLOSING
 437         sctp_log_closing(inp, NULL, 17);
 438 #endif
 439         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 440             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 441 #ifdef SCTP_LOG_CLOSING
 442                 sctp_log_closing(inp, NULL, 16);
 443 #endif
 444                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 445                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 446                 SOCK_LOCK(so);
 447                 SCTP_SB_CLEAR(so->so_snd);
 448                 /*
 449                  * same for the rcv ones, they are only here for the
 450                  * accounting/select.
 451                  */
 452                 SCTP_SB_CLEAR(so->so_rcv);
 453
 454                 /* Now null out the reference, we are completely detached. */
 455                 so->so_pcb = NULL;
 456                 SOCK_UNLOCK(so);
 457         } else {
 458                 flags = inp->sctp_flags;
 459                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 460                         goto sctp_must_try_again;
 461                 }
 462         }
 463         return;
 464 }
 465
 466 static int
 467 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 468 {
 469         struct sctp_inpcb *inp;
 470         struct inpcb *ip_inp;
 471         int error;
 472         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 473
 474         inp = (struct sctp_inpcb *)so->so_pcb;
 475         if (inp != NULL) {
 476                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 477                 return (EINVAL);
 478         }
 479         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 480                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 481                 if (error) {
 482                         return (error);
 483                 }
 484         }
 485         error = sctp_inpcb_alloc(so, vrf_id);
 486         if (error) {
 487                 return (error);
 488         }
 489         inp = (struct sctp_inpcb *)so->so_pcb;
 490         SCTP_INP_WLOCK(inp);
 491         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 492         ip_inp = &inp->ip_inp.inp;
 493         ip_inp->inp_vflag |= INP_IPV4;
 494         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 495         SCTP_INP_WUNLOCK(inp);
 496         return (0);
 497 }
 498
 499 static int
 500 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 501 {
 502         struct sctp_inpcb *inp;
 503
 504         inp = (struct sctp_inpcb *)so->so_pcb;
 505         if (inp == NULL) {
 506                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 507                 return (EINVAL);
 508         }
 509         if (addr != NULL) {
 510                 if ((addr->sa_family != AF_INET) ||
 511                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 512                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 513                         return (EINVAL);
 514                 }
 515         }
 516         return (sctp_inpcb_bind(so, addr, NULL, p));
 517 }
 518
 519 #endif
 520 void
 521 sctp_close(struct socket *so)
 522 {
 523         struct sctp_inpcb *inp;
 524         uint32_t flags;
 525
 526         inp = (struct sctp_inpcb *)so->so_pcb;
 527         if (inp == NULL)
 528                 return;
 529
 530         /*
 531          * Inform all the lower layer assoc that we are done.
 532          */
 533 sctp_must_try_again:
 534         flags = inp->sctp_flags;
 535 #ifdef SCTP_LOG_CLOSING
 536         sctp_log_closing(inp, NULL, 17);
 537 #endif
 538         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 539             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 540                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 541                     (so->so_rcv.sb_cc > 0)) {
 542 #ifdef SCTP_LOG_CLOSING
 543                         sctp_log_closing(inp, NULL, 13);
 544 #endif
 545                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 546                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 547                 } else {
 548 #ifdef SCTP_LOG_CLOSING
 549                         sctp_log_closing(inp, NULL, 14);
 550 #endif
 551                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 552                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 553                 }
 554                 /*
 555                  * The socket is now detached, no matter what the state of
 556                  * the SCTP association.
 557                  */
 558                 SOCK_LOCK(so);
 559                 SCTP_SB_CLEAR(so->so_snd);
 560                 /*
 561                  * same for the rcv ones, they are only here for the
 562                  * accounting/select.
 563                  */
 564                 SCTP_SB_CLEAR(so->so_rcv);
 565
 566                 /* Now null out the reference, we are completely detached. */
 567                 so->so_pcb = NULL;
 568                 SOCK_UNLOCK(so);
 569         } else {
 570                 flags = inp->sctp_flags;
 571                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 572                         goto sctp_must_try_again;
 573                 }
 574         }
 575         return;
 576 }
 577
 578
 579 int
 580 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 581     struct mbuf *control, struct thread *p);
 582
 583
 584 int
 585 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 586     struct mbuf *control, struct thread *p)
 587 {
 588         struct sctp_inpcb *inp;
 589         int error;
 590
 591         inp = (struct sctp_inpcb *)so->so_pcb;
 592         if (inp == NULL) {
 593                 if (control) {
 594                         sctp_m_freem(control);
 595                         control = NULL;
 596                 }
 597                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 598                 sctp_m_freem(m);
 599                 return (EINVAL);
 600         }
 601         /* Got to have an to address if we are NOT a connected socket */
 602         if ((addr == NULL) &&
 603             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 604             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 605                 goto connected_type;
 606         } else if (addr == NULL) {
 607                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 608                 error = EDESTADDRREQ;
 609                 sctp_m_freem(m);
 610                 if (control) {
 611                         sctp_m_freem(control);
 612                         control = NULL;
 613                 }
 614                 return (error);
 615         }
 616 #ifdef INET6
 617         if (addr->sa_family != AF_INET) {
 618                 /* must be a v4 address! */
 619                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 620                 sctp_m_freem(m);
 621                 if (control) {
 622                         sctp_m_freem(control);
 623                         control = NULL;
 624                 }
 625                 error = EDESTADDRREQ;
 626                 return (error);
 627         }
 628 #endif                          /* INET6 */
 629 connected_type:
 630         /* now what about control */
 631         if (control) {
 632                 if (inp->control) {
 633                         sctp_m_freem(inp->control);
 634                         inp->control = NULL;
 635                 }
 636                 inp->control = control;
 637         }
 638         /* Place the data */
 639         if (inp->pkt) {
 640                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 641                 inp->pkt_last = m;
 642         } else {
 643                 inp->pkt_last = inp->pkt = m;
 644         }
 645         if (
 646         /* FreeBSD uses a flag passed */
 647             ((flags & PRUS_MORETOCOME) == 0)
 648             ) {
 649                 /*
 650                  * note with the current version this code will only be used
 651                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 652                  * re-defining sosend to use the sctp_sosend. One can
 653                  * optionally switch back to this code (by changing back the
 654                  * definitions) but this is not advisable. This code is used
 655                  * by FreeBSD when sending a file with sendfile() though.
 656                  */
 657                 int ret;
 658
 659                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 660                 inp->pkt = NULL;
 661                 inp->control = NULL;
 662                 return (ret);
 663         } else {
 664                 return (0);
 665         }
 666 }
 667
 668 int
 669 sctp_disconnect(struct socket *so)
 670 {
 671         struct sctp_inpcb *inp;
 672
 673         inp = (struct sctp_inpcb *)so->so_pcb;
 674         if (inp == NULL) {
 675                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 676                 return (ENOTCONN);
 677         }
 678         SCTP_INP_RLOCK(inp);
 679         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 680             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 681                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 682                         /* No connection */
 683                         SCTP_INP_RUNLOCK(inp);
 684                         return (0);
 685                 } else {
 686                         struct sctp_association *asoc;
 687                         struct sctp_tcb *stcb;
 688
 689                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 690                         if (stcb == NULL) {
 691                                 SCTP_INP_RUNLOCK(inp);
 692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 693                                 return (EINVAL);
 694                         }
 695                         SCTP_TCB_LOCK(stcb);
 696                         asoc = &stcb->asoc;
 697                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 698                                 /* We are about to be freed, out of here */
 699                                 SCTP_TCB_UNLOCK(stcb);
 700                                 SCTP_INP_RUNLOCK(inp);
 701                                 return (0);
 702                         }
 703                         if (((so->so_options & SO_LINGER) &&
 704                             (so->so_linger == 0)) ||
 705                             (so->so_rcv.sb_cc > 0)) {
 706                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 707                                         /* Left with Data unread */
 708                                         struct mbuf *op_err;
 709
 710                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 711                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 712                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 713                                 }
 714                                 SCTP_INP_RUNLOCK(inp);
 715                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 716                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 717                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 718                                 }
 719                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 720                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 721                                 /* No unlock tcb assoc is gone */
 722                                 return (0);
 723                         }
 724                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 725                             TAILQ_EMPTY(&asoc->sent_queue) &&
 726                             (asoc->stream_queue_cnt == 0)) {
 727                                 /* there is nothing queued to send, so done */
 728                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 729                                         goto abort_anyway;
 730                                 }
 731                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 732                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 733                                         /* only send SHUTDOWN 1st time thru */
 734                                         struct sctp_nets *netp;
 735
 736                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 737                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 738                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 739                                         }
 740                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 741                                         sctp_stop_timers_for_shutdown(stcb);
 742                                         if (stcb->asoc.alternate) {
 743                                                 netp = stcb->asoc.alternate;
 744                                         } else {
 745                                                 netp = stcb->asoc.primary_destination;
 746                                         }
 747                                         sctp_send_shutdown(stcb, netp);
 748                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 749                                             stcb->sctp_ep, stcb, netp);
 750                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 751                                             stcb->sctp_ep, stcb, netp);
 752                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 753                                 }
 754                         } else {
 755                                 /*
 756                                  * we still got (or just got) data to send,
 757                                  * so set SHUTDOWN_PENDING
 758                                  */
 759                                 /*
 760                                  * XXX sockets draft says that SCTP_EOF
 761                                  * should be sent with no data. currently,
 762                                  * we will allow user data to be sent first
 763                                  * and move to SHUTDOWN-PENDING
 764                                  */
 765                                 struct sctp_nets *netp;
 766
 767                                 if (stcb->asoc.alternate) {
 768                                         netp = stcb->asoc.alternate;
 769                                 } else {
 770                                         netp = stcb->asoc.primary_destination;
 771                                 }
 772
 773                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 774                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 775                                     netp);
 776                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 777                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 778                                 }
 779                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 780                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 781                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 782                                         struct mbuf *op_err;
 783
 784                         abort_anyway:
 785                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 786                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 787                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 788                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 789                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 790                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 791                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 792                                         }
 793                                         SCTP_INP_RUNLOCK(inp);
 794                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 795                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 796                                         return (0);
 797                                 } else {
 798                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 799                                 }
 800                         }
 801                         soisdisconnecting(so);
 802                         SCTP_TCB_UNLOCK(stcb);
 803                         SCTP_INP_RUNLOCK(inp);
 804                         return (0);
 805                 }
 806                 /* not reached */
 807         } else {
 808                 /* UDP model does not support this */
 809                 SCTP_INP_RUNLOCK(inp);
 810                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 811                 return (EOPNOTSUPP);
 812         }
 813 }
 814
 815 int
 816 sctp_flush(struct socket *so, int how)
 817 {
 818         /*
 819          * We will just clear out the values and let subsequent close clear
 820          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 821          * they will not be able to read the data, the socket will block
 822          * that from happening.
 823          */
 824         struct sctp_inpcb *inp;
 825
 826         inp = (struct sctp_inpcb *)so->so_pcb;
 827         if (inp == NULL) {
 828                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 829                 return (EINVAL);
 830         }
 831         SCTP_INP_RLOCK(inp);
 832         /* For the 1 to many model this does nothing */
 833         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 834                 SCTP_INP_RUNLOCK(inp);
 835                 return (0);
 836         }
 837         SCTP_INP_RUNLOCK(inp);
 838         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 839                 /*
 840                  * First make sure the sb will be happy, we don't use these
 841                  * except maybe the count
 842                  */
 843                 SCTP_INP_WLOCK(inp);
 844                 SCTP_INP_READ_LOCK(inp);
 845                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 846                 SCTP_INP_READ_UNLOCK(inp);
 847                 SCTP_INP_WUNLOCK(inp);
 848                 so->so_rcv.sb_cc = 0;
 849                 so->so_rcv.sb_mbcnt = 0;
 850                 so->so_rcv.sb_mb = NULL;
 851         }
 852         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 853                 /*
 854                  * First make sure the sb will be happy, we don't use these
 855                  * except maybe the count
 856                  */
 857                 so->so_snd.sb_cc = 0;
 858                 so->so_snd.sb_mbcnt = 0;
 859                 so->so_snd.sb_mb = NULL;
 860
 861         }
 862         return (0);
 863 }
 864
 865 int
 866 sctp_shutdown(struct socket *so)
 867 {
 868         struct sctp_inpcb *inp;
 869
 870         inp = (struct sctp_inpcb *)so->so_pcb;
 871         if (inp == NULL) {
 872                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 873                 return (EINVAL);
 874         }
 875         SCTP_INP_RLOCK(inp);
 876         /* For UDP model this is a invalid call */
 877         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 878             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 879                 /* Restore the flags that the soshutdown took away. */
 880                 SOCKBUF_LOCK(&so->so_rcv);
 881                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 882                 SOCKBUF_UNLOCK(&so->so_rcv);
 883                 /* This proc will wakeup for read and do nothing (I hope) */
 884                 SCTP_INP_RUNLOCK(inp);
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 886                 return (EOPNOTSUPP);
 887         } else {
 888                 /*
 889                  * Ok, if we reach here its the TCP model and it is either a
 890                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 891                  * against it.
 892                  */
 893                 struct sctp_tcb *stcb;
 894                 struct sctp_association *asoc;
 895                 struct sctp_nets *netp;
 896
 897                 if ((so->so_state &
 898                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 899                         SCTP_INP_RUNLOCK(inp);
 900                         return (ENOTCONN);
 901                 }
 902                 socantsendmore(so);
 903
 904                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 905                 if (stcb == NULL) {
 906                         /*
 907                          * Ok, we hit the case that the shutdown call was
 908                          * made after an abort or something. Nothing to do
 909                          * now.
 910                          */
 911                         SCTP_INP_RUNLOCK(inp);
 912                         return (0);
 913                 }
 914                 SCTP_TCB_LOCK(stcb);
 915                 asoc = &stcb->asoc;
 916                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 917                         SCTP_TCB_UNLOCK(stcb);
 918                         SCTP_INP_RUNLOCK(inp);
 919                         return (0);
 920                 }
 921                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 922                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 923                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 924                         /*
 925                          * If we are not in or before ESTABLISHED, there is
 926                          * no protocol action required.
 927                          */
 928                         SCTP_TCB_UNLOCK(stcb);
 929                         SCTP_INP_RUNLOCK(inp);
 930                         return (0);
 931                 }
 932                 if (stcb->asoc.alternate) {
 933                         netp = stcb->asoc.alternate;
 934                 } else {
 935                         netp = stcb->asoc.primary_destination;
 936                 }
 937                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 938                     TAILQ_EMPTY(&asoc->send_queue) &&
 939                     TAILQ_EMPTY(&asoc->sent_queue) &&
 940                     (asoc->stream_queue_cnt == 0)) {
 941                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 942                                 goto abort_anyway;
 943                         }
 944                         /* there is nothing queued to send, so I'm done... */
 945                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 946                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 947                         sctp_stop_timers_for_shutdown(stcb);
 948                         sctp_send_shutdown(stcb, netp);
 949                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 950                             stcb->sctp_ep, stcb, netp);
 951                 } else {
 952                         /*
 953                          * We still got (or just got) data to send, so set
 954                          * SHUTDOWN_PENDING.
 955                          */
 956                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 957                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 958                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 959                         }
 960                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 961                             TAILQ_EMPTY(&asoc->sent_queue) &&
 962                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 963                                 struct mbuf *op_err;
 964
 965                 abort_anyway:
 966                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 967                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 968                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 969                                     op_err, SCTP_SO_LOCKED);
 970                                 SCTP_INP_RUNLOCK(inp);
 971                                 return (0);
 972                         }
 973                 }
 974                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 975                 /*
 976                  * XXX: Why do this in the case where we have still data
 977                  * queued?
 978                  */
 979                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 980                 SCTP_TCB_UNLOCK(stcb);
 981                 SCTP_INP_RUNLOCK(inp);
 982                 return (0);
 983         }
 984 }
 985
 986 /*
 987  * copies a "user" presentable address and removes embedded scope, etc.
 988  * returns 0 on success, 1 on error
 989  */
 990 static uint32_t
 991 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 992 {
 993 #ifdef INET6
 994         struct sockaddr_in6 lsa6;
 995
 996         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 997             &lsa6);
 998 #endif
 999         memcpy(ss, sa, sa->sa_len);
1000         return (0);
1001 }
1002
1003
1004
1005 /*
1006  * NOTE: assumes addr lock is held
1007  */
1008 static size_t
1009 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1010     struct sctp_tcb *stcb,
1011     size_t limit,
1012     struct sockaddr_storage *sas,
1013     uint32_t vrf_id)
1014 {
1015         struct sctp_ifn *sctp_ifn;
1016         struct sctp_ifa *sctp_ifa;
1017         size_t actual;
1018         int loopback_scope;
1019 #if defined(INET)
1020         int ipv4_local_scope, ipv4_addr_legal;
1021 #endif
1022 #if defined(INET6)
1023         int local_scope, site_scope, ipv6_addr_legal;
1024 #endif
1025         struct sctp_vrf *vrf;
1026
1027         actual = 0;
1028         if (limit <= 0)
1029                 return (actual);
1030
1031         if (stcb) {
1032                 /* Turn on all the appropriate scope */
1033                 loopback_scope = stcb->asoc.scope.loopback_scope;
1034 #if defined(INET)
1035                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1036                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1037 #endif
1038 #if defined(INET6)
1039                 local_scope = stcb->asoc.scope.local_scope;
1040                 site_scope = stcb->asoc.scope.site_scope;
1041                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1042 #endif
1043         } else {
1044                 /* Use generic values for endpoints. */
1045                 loopback_scope = 1;
1046 #if defined(INET)
1047                 ipv4_local_scope = 1;
1048 #endif
1049 #if defined(INET6)
1050                 local_scope = 1;
1051                 site_scope = 1;
1052 #endif
1053                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1054 #if defined(INET6)
1055                         ipv6_addr_legal = 1;
1056 #endif
1057 #if defined(INET)
1058                         if (SCTP_IPV6_V6ONLY(inp)) {
1059                                 ipv4_addr_legal = 0;
1060                         } else {
1061                                 ipv4_addr_legal = 1;
1062                         }
1063 #endif
1064                 } else {
1065 #if defined(INET6)
1066                         ipv6_addr_legal = 0;
1067 #endif
1068 #if defined(INET)
1069                         ipv4_addr_legal = 1;
1070 #endif
1071                 }
1072         }
1073         vrf = sctp_find_vrf(vrf_id);
1074         if (vrf == NULL) {
1075                 return (0);
1076         }
1077         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1078                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1079                         if ((loopback_scope == 0) &&
1080                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1081                                 /* Skip loopback if loopback_scope not set */
1082                                 continue;
1083                         }
1084                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1085                                 if (stcb) {
1086                                         /*
1087                                          * For the BOUND-ALL case, the list
1088                                          * associated with a TCB is Always
1089                                          * considered a reverse list.. i.e.
1090                                          * it lists addresses that are NOT
1091                                          * part of the association. If this
1092                                          * is one of those we must skip it.
1093                                          */
1094                                         if (sctp_is_addr_restricted(stcb,
1095                                             sctp_ifa)) {
1096                                                 continue;
1097                                         }
1098                                 }
1099                                 switch (sctp_ifa->address.sa.sa_family) {
1100 #ifdef INET
1101                                 case AF_INET:
1102                                         if (ipv4_addr_legal) {
1103                                                 struct sockaddr_in *sin;
1104
1105                                                 sin = &sctp_ifa->address.sin;
1106                                                 if (sin->sin_addr.s_addr == 0) {
1107                                                         /*
1108                                                          * we skip
1109                                                          * unspecifed
1110                                                          * addresses
1111                                                          */
1112                                                         continue;
1113                                                 }
1114                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1115                                                     &sin->sin_addr) != 0) {
1116                                                         continue;
1117                                                 }
1118                                                 if ((ipv4_local_scope == 0) &&
1119                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1120                                                         continue;
1121                                                 }
1122 #ifdef INET6
1123                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1124                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1125                                                                 return (actual);
1126                                                         }
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                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1134                                                                 return (actual);
1135                                                         }
1136                                                         memcpy(sas, sin, sizeof(struct sockaddr_in));
1137                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1138                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in));
1139                                                         actual += sizeof(struct sockaddr_in);
1140 #ifdef INET6
1141                                                 }
1142 #endif
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                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1188                                                         return (actual);
1189                                                 }
1190                                                 memcpy(sas, sin6, sizeof(struct sockaddr_in6));
1191                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1192                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1193                                                 actual += sizeof(struct sockaddr_in6);
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                 size_t sa_len;
1208
1209                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1210                         if (stcb) {
1211                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1212                                         continue;
1213                                 }
1214                         }
1215                         sa_len = laddr->ifa->address.sa.sa_len;
1216                         if (actual + sa_len > limit) {
1217                                 return (actual);
1218                         }
1219                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1220                                 continue;
1221                         switch (laddr->ifa->address.sa.sa_family) {
1222 #ifdef INET
1223                         case AF_INET:
1224                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1225                                 break;
1226 #endif
1227 #ifdef INET6
1228                         case AF_INET6:
1229                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1230                                 break;
1231 #endif
1232                         default:
1233                                 /* TSNH */
1234                                 break;
1235                         }
1236                         sas = (struct sockaddr_storage *)((caddr_t)sas + sa_len);
1237                         actual += sa_len;
1238                 }
1239         }
1240         return (actual);
1241 }
1242
1243 static size_t
1244 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1245     struct sctp_tcb *stcb,
1246     size_t limit,
1247     struct sockaddr_storage *sas)
1248 {
1249         size_t size = 0;
1250
1251         SCTP_IPI_ADDR_RLOCK();
1252         /* fill up addresses for the endpoint's default vrf */
1253         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1254             inp->def_vrf_id);
1255         SCTP_IPI_ADDR_RUNLOCK();
1256         return (size);
1257 }
1258
1259 /*
1260  * NOTE: assumes addr lock is held
1261  */
1262 static int
1263 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1264 {
1265         int cnt = 0;
1266         struct sctp_vrf *vrf = NULL;
1267
1268         /*
1269          * In both sub-set bound an bound_all cases we return the MAXIMUM
1270          * number of addresses that you COULD get. In reality the sub-set
1271          * bound may have an exclusion list for a given TCB OR in the
1272          * bound-all case a TCB may NOT include the loopback or other
1273          * addresses as well.
1274          */
1275         vrf = sctp_find_vrf(vrf_id);
1276         if (vrf == NULL) {
1277                 return (0);
1278         }
1279         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1280                 struct sctp_ifn *sctp_ifn;
1281                 struct sctp_ifa *sctp_ifa;
1282
1283                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1284                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1285                                 /* Count them if they are the right type */
1286                                 switch (sctp_ifa->address.sa.sa_family) {
1287 #ifdef INET
1288                                 case AF_INET:
1289 #ifdef INET6
1290                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1291                                                 cnt += sizeof(struct sockaddr_in6);
1292                                         else
1293                                                 cnt += sizeof(struct sockaddr_in);
1294 #else
1295                                         cnt += sizeof(struct sockaddr_in);
1296 #endif
1297                                         break;
1298 #endif
1299 #ifdef INET6
1300                                 case AF_INET6:
1301                                         cnt += sizeof(struct sockaddr_in6);
1302                                         break;
1303 #endif
1304                                 default:
1305                                         break;
1306                                 }
1307                         }
1308                 }
1309         } else {
1310                 struct sctp_laddr *laddr;
1311
1312                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1313                         switch (laddr->ifa->address.sa.sa_family) {
1314 #ifdef INET
1315                         case AF_INET:
1316 #ifdef INET6
1317                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1318                                         cnt += sizeof(struct sockaddr_in6);
1319                                 else
1320                                         cnt += sizeof(struct sockaddr_in);
1321 #else
1322                                 cnt += sizeof(struct sockaddr_in);
1323 #endif
1324                                 break;
1325 #endif
1326 #ifdef INET6
1327                         case AF_INET6:
1328                                 cnt += sizeof(struct sockaddr_in6);
1329                                 break;
1330 #endif
1331                         default:
1332                                 break;
1333                         }
1334                 }
1335         }
1336         return (cnt);
1337 }
1338
1339 static int
1340 sctp_count_max_addresses(struct sctp_inpcb *inp)
1341 {
1342         int cnt = 0;
1343
1344         SCTP_IPI_ADDR_RLOCK();
1345         /* count addresses for the endpoint's default VRF */
1346         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1347         SCTP_IPI_ADDR_RUNLOCK();
1348         return (cnt);
1349 }
1350
1351 static int
1352 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1353     size_t optsize, void *p, int delay)
1354 {
1355         int error = 0;
1356         int creat_lock_on = 0;
1357         struct sctp_tcb *stcb = NULL;
1358         struct sockaddr *sa;
1359         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1360         uint32_t vrf_id;
1361         int bad_addresses = 0;
1362         sctp_assoc_t *a_id;
1363
1364         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1365
1366         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1367             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1368                 /* We are already connected AND the TCP model */
1369                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1370                 return (EADDRINUSE);
1371         }
1372
1373         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1374             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1375                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1376                 return (EINVAL);
1377         }
1378
1379         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1380                 SCTP_INP_RLOCK(inp);
1381                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1382                 SCTP_INP_RUNLOCK(inp);
1383         }
1384         if (stcb) {
1385                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1386                 return (EALREADY);
1387         }
1388         SCTP_INP_INCR_REF(inp);
1389         SCTP_ASOC_CREATE_LOCK(inp);
1390         creat_lock_on = 1;
1391         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1392             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1393                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1394                 error = EFAULT;
1395                 goto out_now;
1396         }
1397         totaddrp = (unsigned int *)optval;
1398         totaddr = *totaddrp;
1399         sa = (struct sockaddr *)(totaddrp + 1);
1400         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1401         if ((stcb != NULL) || bad_addresses) {
1402                 /* Already have or am bring up an association */
1403                 SCTP_ASOC_CREATE_UNLOCK(inp);
1404                 creat_lock_on = 0;
1405                 if (stcb)
1406                         SCTP_TCB_UNLOCK(stcb);
1407                 if (bad_addresses == 0) {
1408                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1409                         error = EALREADY;
1410                 }
1411                 goto out_now;
1412         }
1413 #ifdef INET6
1414         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1415             (num_v6 > 0)) {
1416                 error = EINVAL;
1417                 goto out_now;
1418         }
1419         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1420             (num_v4 > 0)) {
1421                 struct in6pcb *inp6;
1422
1423                 inp6 = (struct in6pcb *)inp;
1424                 if (SCTP_IPV6_V6ONLY(inp6)) {
1425                         /*
1426                          * if IPV6_V6ONLY flag, ignore connections destined
1427                          * to a v4 addr or v4-mapped addr
1428                          */
1429                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1430                         error = EINVAL;
1431                         goto out_now;
1432                 }
1433         }
1434 #endif                          /* INET6 */
1435         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1436             SCTP_PCB_FLAGS_UNBOUND) {
1437                 /* Bind a ephemeral port */
1438                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1439                 if (error) {
1440                         goto out_now;
1441                 }
1442         }
1443
1444         /* FIX ME: do we want to pass in a vrf on the connect call? */
1445         vrf_id = inp->def_vrf_id;
1446
1447
1448         /* We are GOOD to go */
1449         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1450             inp->sctp_ep.pre_open_stream_count,
1451             inp->sctp_ep.port,
1452             (struct thread *)p
1453             );
1454         if (stcb == NULL) {
1455                 /* Gak! no memory */
1456                 goto out_now;
1457         }
1458         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1459                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1460                 /* Set the connected flag so we can queue data */
1461                 soisconnecting(so);
1462         }
1463         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1464         /* move to second address */
1465         switch (sa->sa_family) {
1466 #ifdef INET
1467         case AF_INET:
1468                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1469                 break;
1470 #endif
1471 #ifdef INET6
1472         case AF_INET6:
1473                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1474                 break;
1475 #endif
1476         default:
1477                 break;
1478         }
1479
1480         error = 0;
1481         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1482         /* Fill in the return id */
1483         if (error) {
1484                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1485                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1486                 goto out_now;
1487         }
1488         a_id = (sctp_assoc_t *)optval;
1489         *a_id = sctp_get_associd(stcb);
1490
1491         /* initialize authentication parameters for the assoc */
1492         sctp_initialize_auth_params(inp, stcb);
1493
1494         if (delay) {
1495                 /* doing delayed connection */
1496                 stcb->asoc.delayed_connection = 1;
1497                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1498         } else {
1499                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1500                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1501         }
1502         SCTP_TCB_UNLOCK(stcb);
1503 out_now:
1504         if (creat_lock_on) {
1505                 SCTP_ASOC_CREATE_UNLOCK(inp);
1506         }
1507         SCTP_INP_DECR_REF(inp);
1508         return (error);
1509 }
1510
1511 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1512         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1513             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1514                 SCTP_INP_RLOCK(inp); \
1515                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1516                 if (stcb) { \
1517                         SCTP_TCB_LOCK(stcb); \
1518                 } \
1519                 SCTP_INP_RUNLOCK(inp); \
1520         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1521                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1522                 if (stcb == NULL) { \
1523                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1524                         error = ENOENT; \
1525                         break; \
1526                 } \
1527         } else { \
1528                 stcb = NULL; \
1529         } \
1530 }
1531
1532
1533 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1534         if (size < sizeof(type)) { \
1535                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1536                 error = EINVAL; \
1537                 break; \
1538         } else { \
1539                 destp = (type *)srcp; \
1540         } \
1541 }
1542
1543 static int
1544 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1545     void *p)
1546 {
1547         struct sctp_inpcb *inp = NULL;
1548         int error, val = 0;
1549         struct sctp_tcb *stcb = NULL;
1550
1551         if (optval == NULL) {
1552                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1553                 return (EINVAL);
1554         }
1555
1556         inp = (struct sctp_inpcb *)so->so_pcb;
1557         if (inp == NULL) {
1558                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1559                 return EINVAL;
1560         }
1561         error = 0;
1562
1563         switch (optname) {
1564         case SCTP_NODELAY:
1565         case SCTP_AUTOCLOSE:
1566         case SCTP_EXPLICIT_EOR:
1567         case SCTP_AUTO_ASCONF:
1568         case SCTP_DISABLE_FRAGMENTS:
1569         case SCTP_I_WANT_MAPPED_V4_ADDR:
1570         case SCTP_USE_EXT_RCVINFO:
1571                 SCTP_INP_RLOCK(inp);
1572                 switch (optname) {
1573                 case SCTP_DISABLE_FRAGMENTS:
1574                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1575                         break;
1576                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1577                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1578                         break;
1579                 case SCTP_AUTO_ASCONF:
1580                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1581                                 /* only valid for bound all sockets */
1582                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1583                         } else {
1584                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1585                                 error = EINVAL;
1586                                 goto flags_out;
1587                         }
1588                         break;
1589                 case SCTP_EXPLICIT_EOR:
1590                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1591                         break;
1592                 case SCTP_NODELAY:
1593                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1594                         break;
1595                 case SCTP_USE_EXT_RCVINFO:
1596                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1597                         break;
1598                 case SCTP_AUTOCLOSE:
1599                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1600                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1601                         else
1602                                 val = 0;
1603                         break;
1604
1605                 default:
1606                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1607                         error = ENOPROTOOPT;
1608                 }               /* end switch (sopt->sopt_name) */
1609                 if (*optsize < sizeof(val)) {
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1611                         error = EINVAL;
1612                 }
1613 flags_out:
1614                 SCTP_INP_RUNLOCK(inp);
1615                 if (error == 0) {
1616                         /* return the option value */
1617                         *(int *)optval = val;
1618                         *optsize = sizeof(val);
1619                 }
1620                 break;
1621         case SCTP_GET_PACKET_LOG:
1622                 {
1623 #ifdef  SCTP_PACKET_LOGGING
1624                         uint8_t *target;
1625                         int ret;
1626
1627                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1628                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1629                         *optsize = ret;
1630 #else
1631                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1632                         error = EOPNOTSUPP;
1633 #endif
1634                         break;
1635                 }
1636         case SCTP_REUSE_PORT:
1637                 {
1638                         uint32_t *value;
1639
1640                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1641                                 /* Can't do this for a 1-m socket */
1642                                 error = EINVAL;
1643                                 break;
1644                         }
1645                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1646                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1647                         *optsize = sizeof(uint32_t);
1648                         break;
1649                 }
1650         case SCTP_PARTIAL_DELIVERY_POINT:
1651                 {
1652                         uint32_t *value;
1653
1654                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1655                         *value = inp->partial_delivery_point;
1656                         *optsize = sizeof(uint32_t);
1657                         break;
1658                 }
1659         case SCTP_FRAGMENT_INTERLEAVE:
1660                 {
1661                         uint32_t *value;
1662
1663                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1664                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1665                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1666                                         *value = SCTP_FRAG_LEVEL_2;
1667                                 } else {
1668                                         *value = SCTP_FRAG_LEVEL_1;
1669                                 }
1670                         } else {
1671                                 *value = SCTP_FRAG_LEVEL_0;
1672                         }
1673                         *optsize = sizeof(uint32_t);
1674                         break;
1675                 }
1676         case SCTP_INTERLEAVING_SUPPORTED:
1677                 {
1678                         struct sctp_assoc_value *av;
1679
1680                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1681                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1682
1683                         if (stcb) {
1684                                 av->assoc_value = stcb->asoc.idata_supported;
1685                                 SCTP_TCB_UNLOCK(stcb);
1686                         } else {
1687                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1688                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1689                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1690                                         SCTP_INP_RLOCK(inp);
1691                                         if (inp->idata_supported) {
1692                                                 av->assoc_value = 1;
1693                                         } else {
1694                                                 av->assoc_value = 0;
1695                                         }
1696                                         SCTP_INP_RUNLOCK(inp);
1697                                 } else {
1698                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1699                                         error = EINVAL;
1700                                 }
1701                         }
1702                         if (error == 0) {
1703                                 *optsize = sizeof(struct sctp_assoc_value);
1704                         }
1705                         break;
1706                 }
1707         case SCTP_CMT_ON_OFF:
1708                 {
1709                         struct sctp_assoc_value *av;
1710
1711                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1712                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1713                         if (stcb) {
1714                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1715                                 SCTP_TCB_UNLOCK(stcb);
1716                         } else {
1717                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1718                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1719                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1720                                         SCTP_INP_RLOCK(inp);
1721                                         av->assoc_value = inp->sctp_cmt_on_off;
1722                                         SCTP_INP_RUNLOCK(inp);
1723                                 } else {
1724                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1725                                         error = EINVAL;
1726                                 }
1727                         }
1728                         if (error == 0) {
1729                                 *optsize = sizeof(struct sctp_assoc_value);
1730                         }
1731                         break;
1732                 }
1733         case SCTP_PLUGGABLE_CC:
1734                 {
1735                         struct sctp_assoc_value *av;
1736
1737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1739                         if (stcb) {
1740                                 av->assoc_value = stcb->asoc.congestion_control_module;
1741                                 SCTP_TCB_UNLOCK(stcb);
1742                         } else {
1743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1746                                         SCTP_INP_RLOCK(inp);
1747                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1748                                         SCTP_INP_RUNLOCK(inp);
1749                                 } else {
1750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1751                                         error = EINVAL;
1752                                 }
1753                         }
1754                         if (error == 0) {
1755                                 *optsize = sizeof(struct sctp_assoc_value);
1756                         }
1757                         break;
1758                 }
1759         case SCTP_CC_OPTION:
1760                 {
1761                         struct sctp_cc_option *cc_opt;
1762
1763                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1764                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1765                         if (stcb == NULL) {
1766                                 error = EINVAL;
1767                         } else {
1768                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1769                                         error = ENOTSUP;
1770                                 } else {
1771                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1772                                         *optsize = sizeof(struct sctp_cc_option);
1773                                 }
1774                                 SCTP_TCB_UNLOCK(stcb);
1775                         }
1776                         break;
1777                 }
1778         case SCTP_PLUGGABLE_SS:
1779                 {
1780                         struct sctp_assoc_value *av;
1781
1782                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1783                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1784                         if (stcb) {
1785                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1786                                 SCTP_TCB_UNLOCK(stcb);
1787                         } else {
1788                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1789                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1790                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1791                                         SCTP_INP_RLOCK(inp);
1792                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1793                                         SCTP_INP_RUNLOCK(inp);
1794                                 } else {
1795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1796                                         error = EINVAL;
1797                                 }
1798                         }
1799                         if (error == 0) {
1800                                 *optsize = sizeof(struct sctp_assoc_value);
1801                         }
1802                         break;
1803                 }
1804         case SCTP_SS_VALUE:
1805                 {
1806                         struct sctp_stream_value *av;
1807
1808                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1809                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1810                         if (stcb) {
1811                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1812                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1813                                     &av->stream_value) < 0)) {
1814                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1815                                         error = EINVAL;
1816                                 } else {
1817                                         *optsize = sizeof(struct sctp_stream_value);
1818                                 }
1819                                 SCTP_TCB_UNLOCK(stcb);
1820                         } else {
1821                                 /*
1822                                  * Can't get stream value without
1823                                  * association
1824                                  */
1825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1826                                 error = EINVAL;
1827                         }
1828                         break;
1829                 }
1830         case SCTP_GET_ADDR_LEN:
1831                 {
1832                         struct sctp_assoc_value *av;
1833
1834                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1835                         error = EINVAL;
1836 #ifdef INET
1837                         if (av->assoc_value == AF_INET) {
1838                                 av->assoc_value = sizeof(struct sockaddr_in);
1839                                 error = 0;
1840                         }
1841 #endif
1842 #ifdef INET6
1843                         if (av->assoc_value == AF_INET6) {
1844                                 av->assoc_value = sizeof(struct sockaddr_in6);
1845                                 error = 0;
1846                         }
1847 #endif
1848                         if (error) {
1849                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1850                         } else {
1851                                 *optsize = sizeof(struct sctp_assoc_value);
1852                         }
1853                         break;
1854                 }
1855         case SCTP_GET_ASSOC_NUMBER:
1856                 {
1857                         uint32_t *value, cnt;
1858
1859                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1860                         SCTP_INP_RLOCK(inp);
1861                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1862                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1863                                 /* Can't do this for a 1-1 socket */
1864                                 error = EINVAL;
1865                                 SCTP_INP_RUNLOCK(inp);
1866                                 break;
1867                         }
1868                         cnt = 0;
1869                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1870                                 cnt++;
1871                         }
1872                         SCTP_INP_RUNLOCK(inp);
1873                         *value = cnt;
1874                         *optsize = sizeof(uint32_t);
1875                         break;
1876                 }
1877         case SCTP_GET_ASSOC_ID_LIST:
1878                 {
1879                         struct sctp_assoc_ids *ids;
1880                         uint32_t at;
1881                         size_t limit;
1882
1883                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1884                         SCTP_INP_RLOCK(inp);
1885                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1886                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1887                                 /* Can't do this for a 1-1 socket */
1888                                 error = EINVAL;
1889                                 SCTP_INP_RUNLOCK(inp);
1890                                 break;
1891                         }
1892                         at = 0;
1893                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1894                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1895                                 if (at < limit) {
1896                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1897                                         if (at == 0) {
1898                                                 error = EINVAL;
1899                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1900                                                 break;
1901                                         }
1902                                 } else {
1903                                         error = EINVAL;
1904                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1905                                         break;
1906                                 }
1907                         }
1908                         SCTP_INP_RUNLOCK(inp);
1909                         if (error == 0) {
1910                                 ids->gaids_number_of_ids = at;
1911                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1912                         }
1913                         break;
1914                 }
1915         case SCTP_CONTEXT:
1916                 {
1917                         struct sctp_assoc_value *av;
1918
1919                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1920                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1921
1922                         if (stcb) {
1923                                 av->assoc_value = stcb->asoc.context;
1924                                 SCTP_TCB_UNLOCK(stcb);
1925                         } else {
1926                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1927                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1928                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1929                                         SCTP_INP_RLOCK(inp);
1930                                         av->assoc_value = inp->sctp_context;
1931                                         SCTP_INP_RUNLOCK(inp);
1932                                 } else {
1933                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1934                                         error = EINVAL;
1935                                 }
1936                         }
1937                         if (error == 0) {
1938                                 *optsize = sizeof(struct sctp_assoc_value);
1939                         }
1940                         break;
1941                 }
1942         case SCTP_VRF_ID:
1943                 {
1944                         uint32_t *default_vrfid;
1945
1946                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1947                         *default_vrfid = inp->def_vrf_id;
1948                         *optsize = sizeof(uint32_t);
1949                         break;
1950                 }
1951         case SCTP_GET_ASOC_VRF:
1952                 {
1953                         struct sctp_assoc_value *id;
1954
1955                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1956                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1957                         if (stcb == NULL) {
1958                                 error = EINVAL;
1959                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1960                         } else {
1961                                 id->assoc_value = stcb->asoc.vrf_id;
1962                                 SCTP_TCB_UNLOCK(stcb);
1963                                 *optsize = sizeof(struct sctp_assoc_value);
1964                         }
1965                         break;
1966                 }
1967         case SCTP_GET_VRF_IDS:
1968                 {
1969                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1970                         error = EOPNOTSUPP;
1971                         break;
1972                 }
1973         case SCTP_GET_NONCE_VALUES:
1974                 {
1975                         struct sctp_get_nonce_values *gnv;
1976
1977                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1978                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1979
1980                         if (stcb) {
1981                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1982                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1983                                 SCTP_TCB_UNLOCK(stcb);
1984                                 *optsize = sizeof(struct sctp_get_nonce_values);
1985                         } else {
1986                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1987                                 error = ENOTCONN;
1988                         }
1989                         break;
1990                 }
1991         case SCTP_DELAYED_SACK:
1992                 {
1993                         struct sctp_sack_info *sack;
1994
1995                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1996                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1997                         if (stcb) {
1998                                 sack->sack_delay = stcb->asoc.delayed_ack;
1999                                 sack->sack_freq = stcb->asoc.sack_freq;
2000                                 SCTP_TCB_UNLOCK(stcb);
2001                         } else {
2002                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2003                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2004                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2005                                         SCTP_INP_RLOCK(inp);
2006                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2007                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2008                                         SCTP_INP_RUNLOCK(inp);
2009                                 } else {
2010                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2011                                         error = EINVAL;
2012                                 }
2013                         }
2014                         if (error == 0) {
2015                                 *optsize = sizeof(struct sctp_sack_info);
2016                         }
2017                         break;
2018                 }
2019         case SCTP_GET_SNDBUF_USE:
2020                 {
2021                         struct sctp_sockstat *ss;
2022
2023                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2024                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2025
2026                         if (stcb) {
2027                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2028                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2029                                     stcb->asoc.size_on_all_streams);
2030                                 SCTP_TCB_UNLOCK(stcb);
2031                                 *optsize = sizeof(struct sctp_sockstat);
2032                         } else {
2033                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2034                                 error = ENOTCONN;
2035                         }
2036                         break;
2037                 }
2038         case SCTP_MAX_BURST:
2039                 {
2040                         struct sctp_assoc_value *av;
2041
2042                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2043                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2044
2045                         if (stcb) {
2046                                 av->assoc_value = stcb->asoc.max_burst;
2047                                 SCTP_TCB_UNLOCK(stcb);
2048                         } else {
2049                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2050                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2051                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2052                                         SCTP_INP_RLOCK(inp);
2053                                         av->assoc_value = inp->sctp_ep.max_burst;
2054                                         SCTP_INP_RUNLOCK(inp);
2055                                 } else {
2056                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2057                                         error = EINVAL;
2058                                 }
2059                         }
2060                         if (error == 0) {
2061                                 *optsize = sizeof(struct sctp_assoc_value);
2062                         }
2063                         break;
2064                 }
2065         case SCTP_MAXSEG:
2066                 {
2067                         struct sctp_assoc_value *av;
2068                         int ovh;
2069
2070                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2071                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2072
2073                         if (stcb) {
2074                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2075                                 SCTP_TCB_UNLOCK(stcb);
2076                         } else {
2077                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2078                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2079                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2080                                         SCTP_INP_RLOCK(inp);
2081                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2082                                                 ovh = SCTP_MED_OVERHEAD;
2083                                         } else {
2084                                                 ovh = SCTP_MED_V4_OVERHEAD;
2085                                         }
2086                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2087                                                 av->assoc_value = 0;
2088                                         else
2089                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2090                                         SCTP_INP_RUNLOCK(inp);
2091                                 } else {
2092                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2093                                         error = EINVAL;
2094                                 }
2095                         }
2096                         if (error == 0) {
2097                                 *optsize = sizeof(struct sctp_assoc_value);
2098                         }
2099                         break;
2100                 }
2101         case SCTP_GET_STAT_LOG:
2102                 error = sctp_fill_stat_log(optval, optsize);
2103                 break;
2104         case SCTP_EVENTS:
2105                 {
2106                         struct sctp_event_subscribe *events;
2107
2108                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2109                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2110                         SCTP_INP_RLOCK(inp);
2111                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2112                                 events->sctp_data_io_event = 1;
2113
2114                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2115                                 events->sctp_association_event = 1;
2116
2117                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2118                                 events->sctp_address_event = 1;
2119
2120                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2121                                 events->sctp_send_failure_event = 1;
2122
2123                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2124                                 events->sctp_peer_error_event = 1;
2125
2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2127                                 events->sctp_shutdown_event = 1;
2128
2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2130                                 events->sctp_partial_delivery_event = 1;
2131
2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2133                                 events->sctp_adaptation_layer_event = 1;
2134
2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2136                                 events->sctp_authentication_event = 1;
2137
2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2139                                 events->sctp_sender_dry_event = 1;
2140
2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2142                                 events->sctp_stream_reset_event = 1;
2143                         SCTP_INP_RUNLOCK(inp);
2144                         *optsize = sizeof(struct sctp_event_subscribe);
2145                         break;
2146                 }
2147         case SCTP_ADAPTATION_LAYER:
2148                 {
2149                         uint32_t *value;
2150
2151                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2152
2153                         SCTP_INP_RLOCK(inp);
2154                         *value = inp->sctp_ep.adaptation_layer_indicator;
2155                         SCTP_INP_RUNLOCK(inp);
2156                         *optsize = sizeof(uint32_t);
2157                         break;
2158                 }
2159         case SCTP_SET_INITIAL_DBG_SEQ:
2160                 {
2161                         uint32_t *value;
2162
2163                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2164                         SCTP_INP_RLOCK(inp);
2165                         *value = inp->sctp_ep.initial_sequence_debug;
2166                         SCTP_INP_RUNLOCK(inp);
2167                         *optsize = sizeof(uint32_t);
2168                         break;
2169                 }
2170         case SCTP_GET_LOCAL_ADDR_SIZE:
2171                 {
2172                         uint32_t *value;
2173
2174                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2175                         SCTP_INP_RLOCK(inp);
2176                         *value = sctp_count_max_addresses(inp);
2177                         SCTP_INP_RUNLOCK(inp);
2178                         *optsize = sizeof(uint32_t);
2179                         break;
2180                 }
2181         case SCTP_GET_REMOTE_ADDR_SIZE:
2182                 {
2183                         uint32_t *value;
2184                         size_t size;
2185                         struct sctp_nets *net;
2186
2187                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2188                         /* FIXME MT: change to sctp_assoc_value? */
2189                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2190
2191                         if (stcb) {
2192                                 size = 0;
2193                                 /* Count the sizes */
2194                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2195                                         switch (net->ro._l_addr.sa.sa_family) {
2196 #ifdef INET
2197                                         case AF_INET:
2198 #ifdef INET6
2199                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2200                                                         size += sizeof(struct sockaddr_in6);
2201                                                 } else {
2202                                                         size += sizeof(struct sockaddr_in);
2203                                                 }
2204 #else
2205                                                 size += sizeof(struct sockaddr_in);
2206 #endif
2207                                                 break;
2208 #endif
2209 #ifdef INET6
2210                                         case AF_INET6:
2211                                                 size += sizeof(struct sockaddr_in6);
2212                                                 break;
2213 #endif
2214                                         default:
2215                                                 break;
2216                                         }
2217                                 }
2218                                 SCTP_TCB_UNLOCK(stcb);
2219                                 *value = (uint32_t)size;
2220                                 *optsize = sizeof(uint32_t);
2221                         } else {
2222                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2223                                 error = ENOTCONN;
2224                         }
2225                         break;
2226                 }
2227         case SCTP_GET_PEER_ADDRESSES:
2228                 /*
2229                  * Get the address information, an array is passed in to
2230                  * fill up we pack it.
2231                  */
2232                 {
2233                         size_t cpsz, left;
2234                         struct sockaddr_storage *sas;
2235                         struct sctp_nets *net;
2236                         struct sctp_getaddresses *saddr;
2237
2238                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2239                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2240
2241                         if (stcb) {
2242                                 left = (*optsize) - sizeof(sctp_assoc_t);
2243                                 *optsize = sizeof(sctp_assoc_t);
2244                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2245
2246                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2247                                         switch (net->ro._l_addr.sa.sa_family) {
2248 #ifdef INET
2249                                         case AF_INET:
2250 #ifdef INET6
2251                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2252                                                         cpsz = sizeof(struct sockaddr_in6);
2253                                                 } else {
2254                                                         cpsz = sizeof(struct sockaddr_in);
2255                                                 }
2256 #else
2257                                                 cpsz = sizeof(struct sockaddr_in);
2258 #endif
2259                                                 break;
2260 #endif
2261 #ifdef INET6
2262                                         case AF_INET6:
2263                                                 cpsz = sizeof(struct sockaddr_in6);
2264                                                 break;
2265 #endif
2266                                         default:
2267                                                 cpsz = 0;
2268                                                 break;
2269                                         }
2270                                         if (cpsz == 0) {
2271                                                 break;
2272                                         }
2273                                         if (left < cpsz) {
2274                                                 /* not enough room. */
2275                                                 break;
2276                                         }
2277 #if defined(INET) && defined(INET6)
2278                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2279                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2280                                                 /* Must map the address */
2281                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2282                                                     (struct sockaddr_in6 *)sas);
2283                                         } else {
2284                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2285                                         }
2286 #else
2287                                         memcpy(sas, &net->ro._l_addr, cpsz);
2288 #endif
2289                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2290
2291                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2292                                         left -= cpsz;
2293                                         *optsize += cpsz;
2294                                 }
2295                                 SCTP_TCB_UNLOCK(stcb);
2296                         } else {
2297                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2298                                 error = ENOENT;
2299                         }
2300                         break;
2301                 }
2302         case SCTP_GET_LOCAL_ADDRESSES:
2303                 {
2304                         size_t limit, actual;
2305                         struct sockaddr_storage *sas;
2306                         struct sctp_getaddresses *saddr;
2307
2308                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2309                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2310
2311                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2312                         limit = *optsize - sizeof(sctp_assoc_t);
2313                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2314                         if (stcb) {
2315                                 SCTP_TCB_UNLOCK(stcb);
2316                         }
2317                         *optsize = sizeof(sctp_assoc_t) + actual;
2318                         break;
2319                 }
2320         case SCTP_PEER_ADDR_PARAMS:
2321                 {
2322                         struct sctp_paddrparams *paddrp;
2323                         struct sctp_nets *net;
2324                         struct sockaddr *addr;
2325 #if defined(INET) && defined(INET6)
2326                         struct sockaddr_in sin_store;
2327 #endif
2328
2329                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2330                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2331
2332 #if defined(INET) && defined(INET6)
2333                         if (paddrp->spp_address.ss_family == AF_INET6) {
2334                                 struct sockaddr_in6 *sin6;
2335
2336                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2337                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2338                                         in6_sin6_2_sin(&sin_store, sin6);
2339                                         addr = (struct sockaddr *)&sin_store;
2340                                 } else {
2341                                         addr = (struct sockaddr *)&paddrp->spp_address;
2342                                 }
2343                         } else {
2344                                 addr = (struct sockaddr *)&paddrp->spp_address;
2345                         }
2346 #else
2347                         addr = (struct sockaddr *)&paddrp->spp_address;
2348 #endif
2349                         if (stcb != NULL) {
2350                                 net = sctp_findnet(stcb, addr);
2351                         } else {
2352                                 /*
2353                                  * We increment here since
2354                                  * sctp_findassociation_ep_addr() wil do a
2355                                  * decrement if it finds the stcb as long as
2356                                  * the locked tcb (last argument) is NOT a
2357                                  * TCB.. aka NULL.
2358                                  */
2359                                 net = NULL;
2360                                 SCTP_INP_INCR_REF(inp);
2361                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2362                                 if (stcb == NULL) {
2363                                         SCTP_INP_DECR_REF(inp);
2364                                 }
2365                         }
2366                         if ((stcb != NULL) && (net == NULL)) {
2367 #ifdef INET
2368                                 if (addr->sa_family == AF_INET) {
2369                                         struct sockaddr_in *sin;
2370
2371                                         sin = (struct sockaddr_in *)addr;
2372                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2373                                                 error = EINVAL;
2374                                                 SCTP_TCB_UNLOCK(stcb);
2375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2376                                                 break;
2377                                         }
2378                                 } else
2379 #endif
2380 #ifdef INET6
2381                                 if (addr->sa_family == AF_INET6) {
2382                                         struct sockaddr_in6 *sin6;
2383
2384                                         sin6 = (struct sockaddr_in6 *)addr;
2385                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2386                                                 error = EINVAL;
2387                                                 SCTP_TCB_UNLOCK(stcb);
2388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2389                                                 break;
2390                                         }
2391                                 } else
2392 #endif
2393                                 {
2394                                         error = EAFNOSUPPORT;
2395                                         SCTP_TCB_UNLOCK(stcb);
2396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2397                                         break;
2398                                 }
2399                         }
2400
2401                         if (stcb != NULL) {
2402                                 /* Applies to the specific association */
2403                                 paddrp->spp_flags = 0;
2404                                 if (net != NULL) {
2405                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2406                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2407                                         paddrp->spp_pathmtu = net->mtu;
2408                                         switch (net->ro._l_addr.sa.sa_family) {
2409 #ifdef INET
2410                                         case AF_INET:
2411                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2412                                                 break;
2413 #endif
2414 #ifdef INET6
2415                                         case AF_INET6:
2416                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2417                                                 break;
2418 #endif
2419                                         default:
2420                                                 break;
2421                                         }
2422                                         /* get flags for HB */
2423                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2424                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2425                                         } else {
2426                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2427                                         }
2428                                         /* get flags for PMTU */
2429                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2430                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2431                                         } else {
2432                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2433                                         }
2434                                         if (net->dscp & 0x01) {
2435                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2436                                                 paddrp->spp_flags |= SPP_DSCP;
2437                                         }
2438 #ifdef INET6
2439                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2440                                             (net->flowlabel & 0x80000000)) {
2441                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2442                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2443                                         }
2444 #endif
2445                                 } else {
2446                                         /*
2447                                          * No destination so return default
2448                                          * value
2449                                          */
2450                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2451                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2452                                         if (stcb->asoc.default_dscp & 0x01) {
2453                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2454                                                 paddrp->spp_flags |= SPP_DSCP;
2455                                         }
2456 #ifdef INET6
2457                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2458                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2459                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2460                                         }
2461 #endif
2462                                         /* default settings should be these */
2463                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2464                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2465                                         } else {
2466                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2467                                         }
2468                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2469                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2470                                         } else {
2471                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2472                                         }
2473                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2474                                 }
2475                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2476                                 SCTP_TCB_UNLOCK(stcb);
2477                         } else {
2478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2480                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2481                                         /* Use endpoint defaults */
2482                                         SCTP_INP_RLOCK(inp);
2483                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2484                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2485                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2486                                         /* get inp's default */
2487                                         if (inp->sctp_ep.default_dscp & 0x01) {
2488                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2489                                                 paddrp->spp_flags |= SPP_DSCP;
2490                                         }
2491 #ifdef INET6
2492                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2493                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2494                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2495                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2496                                         }
2497 #endif
2498                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2499
2500                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2504                                         }
2505                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2509                                         }
2510                                         SCTP_INP_RUNLOCK(inp);
2511                                 } else {
2512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2513                                         error = EINVAL;
2514                                 }
2515                         }
2516                         if (error == 0) {
2517                                 *optsize = sizeof(struct sctp_paddrparams);
2518                         }
2519                         break;
2520                 }
2521         case SCTP_GET_PEER_ADDR_INFO:
2522                 {
2523                         struct sctp_paddrinfo *paddri;
2524                         struct sctp_nets *net;
2525                         struct sockaddr *addr;
2526 #if defined(INET) && defined(INET6)
2527                         struct sockaddr_in sin_store;
2528 #endif
2529
2530                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2531                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2532
2533 #if defined(INET) && defined(INET6)
2534                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2535                                 struct sockaddr_in6 *sin6;
2536
2537                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2538                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2539                                         in6_sin6_2_sin(&sin_store, sin6);
2540                                         addr = (struct sockaddr *)&sin_store;
2541                                 } else {
2542                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2543                                 }
2544                         } else {
2545                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2546                         }
2547 #else
2548                         addr = (struct sockaddr *)&paddri->spinfo_address;
2549 #endif
2550                         if (stcb != NULL) {
2551                                 net = sctp_findnet(stcb, addr);
2552                         } else {
2553                                 /*
2554                                  * We increment here since
2555                                  * sctp_findassociation_ep_addr() wil do a
2556                                  * decrement if it finds the stcb as long as
2557                                  * the locked tcb (last argument) is NOT a
2558                                  * TCB.. aka NULL.
2559                                  */
2560                                 net = NULL;
2561                                 SCTP_INP_INCR_REF(inp);
2562                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2563                                 if (stcb == NULL) {
2564                                         SCTP_INP_DECR_REF(inp);
2565                                 }
2566                         }
2567
2568                         if ((stcb != NULL) && (net != NULL)) {
2569                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2570                                         /* It's unconfirmed */
2571                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2572                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2573                                         /* It's active */
2574                                         paddri->spinfo_state = SCTP_ACTIVE;
2575                                 } else {
2576                                         /* It's inactive */
2577                                         paddri->spinfo_state = SCTP_INACTIVE;
2578                                 }
2579                                 paddri->spinfo_cwnd = net->cwnd;
2580                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2581                                 paddri->spinfo_rto = net->RTO;
2582                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2583                                 paddri->spinfo_mtu = net->mtu;
2584                                 switch (addr->sa_family) {
2585 #if defined(INET)
2586                                 case AF_INET:
2587                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2588                                         break;
2589 #endif
2590 #if defined(INET6)
2591                                 case AF_INET6:
2592                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2593                                         break;
2594 #endif
2595                                 default:
2596                                         break;
2597                                 }
2598                                 SCTP_TCB_UNLOCK(stcb);
2599                                 *optsize = sizeof(struct sctp_paddrinfo);
2600                         } else {
2601                                 if (stcb != NULL) {
2602                                         SCTP_TCB_UNLOCK(stcb);
2603                                 }
2604                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2605                                 error = ENOENT;
2606                         }
2607                         break;
2608                 }
2609         case SCTP_PCB_STATUS:
2610                 {
2611                         struct sctp_pcbinfo *spcb;
2612
2613                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2614                         sctp_fill_pcbinfo(spcb);
2615                         *optsize = sizeof(struct sctp_pcbinfo);
2616                         break;
2617                 }
2618         case SCTP_STATUS:
2619                 {
2620                         struct sctp_nets *net;
2621                         struct sctp_status *sstat;
2622
2623                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2624                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2625
2626                         if (stcb == NULL) {
2627                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2628                                 error = EINVAL;
2629                                 break;
2630                         }
2631                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2632                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2633                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2634                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2635                         /*
2636                          * We can't include chunks that have been passed to
2637                          * the socket layer. Only things in queue.
2638                          */
2639                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2640                             stcb->asoc.cnt_on_all_streams);
2641
2642
2643                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2644                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2645                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2646                         net = stcb->asoc.primary_destination;
2647                         if (net != NULL) {
2648                                 memcpy(&sstat->sstat_primary.spinfo_address,
2649                                     &stcb->asoc.primary_destination->ro._l_addr,
2650                                     ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2651                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2652                                 /*
2653                                  * Again the user can get info from
2654                                  * sctp_constants.h for what the state of
2655                                  * the network is.
2656                                  */
2657                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2658                                         /* It's unconfirmed */
2659                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2660                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2661                                         /* It's active */
2662                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2663                                 } else {
2664                                         /* It's inactive */
2665                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2666                                 }
2667                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2668                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2669                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2670                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2671                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2672 #if defined(INET)
2673                                 case AF_INET:
2674                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2675                                         break;
2676 #endif
2677 #if defined(INET6)
2678                                 case AF_INET6:
2679                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2680                                         break;
2681 #endif
2682                                 default:
2683                                         break;
2684                                 }
2685                         } else {
2686                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2687                         }
2688                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2689                         SCTP_TCB_UNLOCK(stcb);
2690                         *optsize = sizeof(struct sctp_status);
2691                         break;
2692                 }
2693         case SCTP_RTOINFO:
2694                 {
2695                         struct sctp_rtoinfo *srto;
2696
2697                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2698                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2699
2700                         if (stcb) {
2701                                 srto->srto_initial = stcb->asoc.initial_rto;
2702                                 srto->srto_max = stcb->asoc.maxrto;
2703                                 srto->srto_min = stcb->asoc.minrto;
2704                                 SCTP_TCB_UNLOCK(stcb);
2705                         } else {
2706                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2707                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2708                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2709                                         SCTP_INP_RLOCK(inp);
2710                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2711                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2712                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2713                                         SCTP_INP_RUNLOCK(inp);
2714                                 } else {
2715                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2716                                         error = EINVAL;
2717                                 }
2718                         }
2719                         if (error == 0) {
2720                                 *optsize = sizeof(struct sctp_rtoinfo);
2721                         }
2722                         break;
2723                 }
2724         case SCTP_TIMEOUTS:
2725                 {
2726                         struct sctp_timeouts *stimo;
2727
2728                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2729                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2730
2731                         if (stcb) {
2732                                 stimo->stimo_init = stcb->asoc.timoinit;
2733                                 stimo->stimo_data = stcb->asoc.timodata;
2734                                 stimo->stimo_sack = stcb->asoc.timosack;
2735                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2736                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2737                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2738                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2739                                 SCTP_TCB_UNLOCK(stcb);
2740                                 *optsize = sizeof(struct sctp_timeouts);
2741                         } else {
2742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2743                                 error = EINVAL;
2744                         }
2745                         break;
2746                 }
2747         case SCTP_ASSOCINFO:
2748                 {
2749                         struct sctp_assocparams *sasoc;
2750
2751                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2752                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2753
2754                         if (stcb) {
2755                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2756                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2757                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2758                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2759                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2760                                 SCTP_TCB_UNLOCK(stcb);
2761                         } else {
2762                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2763                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2764                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2765                                         SCTP_INP_RLOCK(inp);
2766                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2767                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2768                                         sasoc->sasoc_number_peer_destinations = 0;
2769                                         sasoc->sasoc_peer_rwnd = 0;
2770                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2771                                         SCTP_INP_RUNLOCK(inp);
2772                                 } else {
2773                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2774                                         error = EINVAL;
2775                                 }
2776                         }
2777                         if (error == 0) {
2778                                 *optsize = sizeof(struct sctp_assocparams);
2779                         }
2780                         break;
2781                 }
2782         case SCTP_DEFAULT_SEND_PARAM:
2783                 {
2784                         struct sctp_sndrcvinfo *s_info;
2785
2786                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2787                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2788
2789                         if (stcb) {
2790                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2791                                 SCTP_TCB_UNLOCK(stcb);
2792                         } else {
2793                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2794                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2795                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2796                                         SCTP_INP_RLOCK(inp);
2797                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2798                                         SCTP_INP_RUNLOCK(inp);
2799                                 } else {
2800                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2801                                         error = EINVAL;
2802                                 }
2803                         }
2804                         if (error == 0) {
2805                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2806                         }
2807                         break;
2808                 }
2809         case SCTP_INITMSG:
2810                 {
2811                         struct sctp_initmsg *sinit;
2812
2813                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2814                         SCTP_INP_RLOCK(inp);
2815                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2816                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2817                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2818                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2819                         SCTP_INP_RUNLOCK(inp);
2820                         *optsize = sizeof(struct sctp_initmsg);
2821                         break;
2822                 }
2823         case SCTP_PRIMARY_ADDR:
2824                 /* we allow a "get" operation on this */
2825                 {
2826                         struct sctp_setprim *ssp;
2827
2828                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2829                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2830
2831                         if (stcb) {
2832                                 union sctp_sockstore *addr;
2833
2834                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2835                                 switch (addr->sa.sa_family) {
2836 #ifdef INET
2837                                 case AF_INET:
2838 #ifdef INET6
2839                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2840                                                 in6_sin_2_v4mapsin6(&addr->sin,
2841                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2842                                         } else {
2843                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2844                                         }
2845 #else
2846                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2847 #endif
2848                                         break;
2849 #endif
2850 #ifdef INET6
2851                                 case AF_INET6:
2852                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2853                                         break;
2854 #endif
2855                                 default:
2856                                         break;
2857                                 }
2858                                 SCTP_TCB_UNLOCK(stcb);
2859                                 *optsize = sizeof(struct sctp_setprim);
2860                         } else {
2861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2862                                 error = EINVAL;
2863                         }
2864                         break;
2865                 }
2866         case SCTP_HMAC_IDENT:
2867                 {
2868                         struct sctp_hmacalgo *shmac;
2869                         sctp_hmaclist_t *hmaclist;
2870                         uint32_t size;
2871                         int i;
2872
2873                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2874
2875                         SCTP_INP_RLOCK(inp);
2876                         hmaclist = inp->sctp_ep.local_hmacs;
2877                         if (hmaclist == NULL) {
2878                                 /* no HMACs to return */
2879                                 *optsize = sizeof(*shmac);
2880                                 SCTP_INP_RUNLOCK(inp);
2881                                 break;
2882                         }
2883                         /* is there room for all of the hmac ids? */
2884                         size = sizeof(*shmac) + (hmaclist->num_algo *
2885                             sizeof(shmac->shmac_idents[0]));
2886                         if ((size_t)(*optsize) < size) {
2887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2888                                 error = EINVAL;
2889                                 SCTP_INP_RUNLOCK(inp);
2890                                 break;
2891                         }
2892                         /* copy in the list */
2893                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2894                         for (i = 0; i < hmaclist->num_algo; i++) {
2895                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2896                         }
2897                         SCTP_INP_RUNLOCK(inp);
2898                         *optsize = size;
2899                         break;
2900                 }
2901         case SCTP_AUTH_ACTIVE_KEY:
2902                 {
2903                         struct sctp_authkeyid *scact;
2904
2905                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2906                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2907
2908                         if (stcb) {
2909                                 /* get the active key on the assoc */
2910                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2911                                 SCTP_TCB_UNLOCK(stcb);
2912                         } else {
2913                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2914                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2915                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2916                                         /* get the endpoint active key */
2917                                         SCTP_INP_RLOCK(inp);
2918                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2919                                         SCTP_INP_RUNLOCK(inp);
2920                                 } else {
2921                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2922                                         error = EINVAL;
2923                                 }
2924                         }
2925                         if (error == 0) {
2926                                 *optsize = sizeof(struct sctp_authkeyid);
2927                         }
2928                         break;
2929                 }
2930         case SCTP_LOCAL_AUTH_CHUNKS:
2931                 {
2932                         struct sctp_authchunks *sac;
2933                         sctp_auth_chklist_t *chklist = NULL;
2934                         size_t size = 0;
2935
2936                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2937                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2938
2939                         if (stcb) {
2940                                 /* get off the assoc */
2941                                 chklist = stcb->asoc.local_auth_chunks;
2942                                 /* is there enough space? */
2943                                 size = sctp_auth_get_chklist_size(chklist);
2944                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2945                                         error = EINVAL;
2946                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2947                                 } else {
2948                                         /* copy in the chunks */
2949                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2950                                         sac->gauth_number_of_chunks = (uint32_t)size;
2951                                         *optsize = sizeof(struct sctp_authchunks) + size;
2952                                 }
2953                                 SCTP_TCB_UNLOCK(stcb);
2954                         } else {
2955                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2956                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2957                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2958                                         /* get off the endpoint */
2959                                         SCTP_INP_RLOCK(inp);
2960                                         chklist = inp->sctp_ep.local_auth_chunks;
2961                                         /* is there enough space? */
2962                                         size = sctp_auth_get_chklist_size(chklist);
2963                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2964                                                 error = EINVAL;
2965                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2966                                         } else {
2967                                                 /* copy in the chunks */
2968                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2969                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2970                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2971                                         }
2972                                         SCTP_INP_RUNLOCK(inp);
2973                                 } else {
2974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2975                                         error = EINVAL;
2976                                 }
2977                         }
2978                         break;
2979                 }
2980         case SCTP_PEER_AUTH_CHUNKS:
2981                 {
2982                         struct sctp_authchunks *sac;
2983                         sctp_auth_chklist_t *chklist = NULL;
2984                         size_t size = 0;
2985
2986                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2987                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2988
2989                         if (stcb) {
2990                                 /* get off the assoc */
2991                                 chklist = stcb->asoc.peer_auth_chunks;
2992                                 /* is there enough space? */
2993                                 size = sctp_auth_get_chklist_size(chklist);
2994                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2995                                         error = EINVAL;
2996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2997                                 } else {
2998                                         /* copy in the chunks */
2999                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3000                                         sac->gauth_number_of_chunks = (uint32_t)size;
3001                                         *optsize = sizeof(struct sctp_authchunks) + size;
3002                                 }
3003                                 SCTP_TCB_UNLOCK(stcb);
3004                         } else {
3005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3006                                 error = ENOENT;
3007                         }
3008                         break;
3009                 }
3010         case SCTP_EVENT:
3011                 {
3012                         struct sctp_event *event;
3013                         uint32_t event_type;
3014
3015                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3016                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3017
3018                         switch (event->se_type) {
3019                         case SCTP_ASSOC_CHANGE:
3020                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3021                                 break;
3022                         case SCTP_PEER_ADDR_CHANGE:
3023                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3024                                 break;
3025                         case SCTP_REMOTE_ERROR:
3026                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3027                                 break;
3028                         case SCTP_SEND_FAILED:
3029                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3030                                 break;
3031                         case SCTP_SHUTDOWN_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3033                                 break;
3034                         case SCTP_ADAPTATION_INDICATION:
3035                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3036                                 break;
3037                         case SCTP_PARTIAL_DELIVERY_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3039                                 break;
3040                         case SCTP_AUTHENTICATION_EVENT:
3041                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3042                                 break;
3043                         case SCTP_STREAM_RESET_EVENT:
3044                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3045                                 break;
3046                         case SCTP_SENDER_DRY_EVENT:
3047                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3048                                 break;
3049                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3050                                 event_type = 0;
3051                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3052                                 error = ENOTSUP;
3053                                 break;
3054                         case SCTP_ASSOC_RESET_EVENT:
3055                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3056                                 break;
3057                         case SCTP_STREAM_CHANGE_EVENT:
3058                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3059                                 break;
3060                         case SCTP_SEND_FAILED_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3062                                 break;
3063                         default:
3064                                 event_type = 0;
3065                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3066                                 error = EINVAL;
3067                                 break;
3068                         }
3069                         if (event_type > 0) {
3070                                 if (stcb) {
3071                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3072                                 } else {
3073                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3074                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3075                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3076                                                 SCTP_INP_RLOCK(inp);
3077                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3078                                                 SCTP_INP_RUNLOCK(inp);
3079                                         } else {
3080                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3081                                                 error = EINVAL;
3082                                         }
3083                                 }
3084                         }
3085                         if (stcb != NULL) {
3086                                 SCTP_TCB_UNLOCK(stcb);
3087                         }
3088                         if (error == 0) {
3089                                 *optsize = sizeof(struct sctp_event);
3090                         }
3091                         break;
3092                 }
3093         case SCTP_RECVRCVINFO:
3094                 {
3095                         int onoff;
3096
3097                         if (*optsize < sizeof(int)) {
3098                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                 error = EINVAL;
3100                         } else {
3101                                 SCTP_INP_RLOCK(inp);
3102                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3103                                 SCTP_INP_RUNLOCK(inp);
3104                         }
3105                         if (error == 0) {
3106                                 /* return the option value */
3107                                 *(int *)optval = onoff;
3108                                 *optsize = sizeof(int);
3109                         }
3110                         break;
3111                 }
3112         case SCTP_RECVNXTINFO:
3113                 {
3114                         int onoff;
3115
3116                         if (*optsize < sizeof(int)) {
3117                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3118                                 error = EINVAL;
3119                         } else {
3120                                 SCTP_INP_RLOCK(inp);
3121                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3122                                 SCTP_INP_RUNLOCK(inp);
3123                         }
3124                         if (error == 0) {
3125                                 /* return the option value */
3126                                 *(int *)optval = onoff;
3127                                 *optsize = sizeof(int);
3128                         }
3129                         break;
3130                 }
3131         case SCTP_DEFAULT_SNDINFO:
3132                 {
3133                         struct sctp_sndinfo *info;
3134
3135                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3136                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3137
3138                         if (stcb) {
3139                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3140                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3141                                 info->snd_flags &= 0xfff0;
3142                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3143                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3144                                 SCTP_TCB_UNLOCK(stcb);
3145                         } else {
3146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3148                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3149                                         SCTP_INP_RLOCK(inp);
3150                                         info->snd_sid = inp->def_send.sinfo_stream;
3151                                         info->snd_flags = inp->def_send.sinfo_flags;
3152                                         info->snd_flags &= 0xfff0;
3153                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3154                                         info->snd_context = inp->def_send.sinfo_context;
3155                                         SCTP_INP_RUNLOCK(inp);
3156                                 } else {
3157                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3158                                         error = EINVAL;
3159                                 }
3160                         }
3161                         if (error == 0) {
3162                                 *optsize = sizeof(struct sctp_sndinfo);
3163                         }
3164                         break;
3165                 }
3166         case SCTP_DEFAULT_PRINFO:
3167                 {
3168                         struct sctp_default_prinfo *info;
3169
3170                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3171                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3172
3173                         if (stcb) {
3174                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3175                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3176                                 SCTP_TCB_UNLOCK(stcb);
3177                         } else {
3178                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3179                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3180                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3181                                         SCTP_INP_RLOCK(inp);
3182                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3183                                         info->pr_value = inp->def_send.sinfo_timetolive;
3184                                         SCTP_INP_RUNLOCK(inp);
3185                                 } else {
3186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3187                                         error = EINVAL;
3188                                 }
3189                         }
3190                         if (error == 0) {
3191                                 *optsize = sizeof(struct sctp_default_prinfo);
3192                         }
3193                         break;
3194                 }
3195         case SCTP_PEER_ADDR_THLDS:
3196                 {
3197                         struct sctp_paddrthlds *thlds;
3198                         struct sctp_nets *net;
3199                         struct sockaddr *addr;
3200 #if defined(INET) && defined(INET6)
3201                         struct sockaddr_in sin_store;
3202 #endif
3203
3204                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3205                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3206
3207 #if defined(INET) && defined(INET6)
3208                         if (thlds->spt_address.ss_family == AF_INET6) {
3209                                 struct sockaddr_in6 *sin6;
3210
3211                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3212                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3213                                         in6_sin6_2_sin(&sin_store, sin6);
3214                                         addr = (struct sockaddr *)&sin_store;
3215                                 } else {
3216                                         addr = (struct sockaddr *)&thlds->spt_address;
3217                                 }
3218                         } else {
3219                                 addr = (struct sockaddr *)&thlds->spt_address;
3220                         }
3221 #else
3222                         addr = (struct sockaddr *)&thlds->spt_address;
3223 #endif
3224                         if (stcb != NULL) {
3225                                 net = sctp_findnet(stcb, addr);
3226                         } else {
3227                                 /*
3228                                  * We increment here since
3229                                  * sctp_findassociation_ep_addr() wil do a
3230                                  * decrement if it finds the stcb as long as
3231                                  * the locked tcb (last argument) is NOT a
3232                                  * TCB.. aka NULL.
3233                                  */
3234                                 net = NULL;
3235                                 SCTP_INP_INCR_REF(inp);
3236                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3237                                 if (stcb == NULL) {
3238                                         SCTP_INP_DECR_REF(inp);
3239                                 }
3240                         }
3241                         if ((stcb != NULL) && (net == NULL)) {
3242 #ifdef INET
3243                                 if (addr->sa_family == AF_INET) {
3244                                         struct sockaddr_in *sin;
3245
3246                                         sin = (struct sockaddr_in *)addr;
3247                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
3256                                 if (addr->sa_family == AF_INET6) {
3257                                         struct sockaddr_in6 *sin6;
3258
3259                                         sin6 = (struct sockaddr_in6 *)addr;
3260                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3261                                                 error = EINVAL;
3262                                                 SCTP_TCB_UNLOCK(stcb);
3263                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3264                                                 break;
3265                                         }
3266                                 } else
3267 #endif
3268                                 {
3269                                         error = EAFNOSUPPORT;
3270                                         SCTP_TCB_UNLOCK(stcb);
3271                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3272                                         break;
3273                                 }
3274                         }
3275
3276                         if (stcb != NULL) {
3277                                 if (net != NULL) {
3278                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3279                                         thlds->spt_pathpfthld = net->pf_threshold;
3280                                         thlds->spt_pathcpthld = 0xffff;
3281                                 } else {
3282                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3283                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3284                                         thlds->spt_pathcpthld = 0xffff;
3285                                 }
3286                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3287                                 SCTP_TCB_UNLOCK(stcb);
3288                         } else {
3289                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3290                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3291                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3292                                         /* Use endpoint defaults */
3293                                         SCTP_INP_RLOCK(inp);
3294                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3295                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3296                                         thlds->spt_pathcpthld = 0xffff;
3297                                         SCTP_INP_RUNLOCK(inp);
3298                                 } else {
3299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3300                                         error = EINVAL;
3301                                 }
3302                         }
3303                         if (error == 0) {
3304                                 *optsize = sizeof(struct sctp_paddrthlds);
3305                         }
3306                         break;
3307                 }
3308         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3309                 {
3310                         struct sctp_udpencaps *encaps;
3311                         struct sctp_nets *net;
3312                         struct sockaddr *addr;
3313 #if defined(INET) && defined(INET6)
3314                         struct sockaddr_in sin_store;
3315 #endif
3316
3317                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3318                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3319
3320 #if defined(INET) && defined(INET6)
3321                         if (encaps->sue_address.ss_family == AF_INET6) {
3322                                 struct sockaddr_in6 *sin6;
3323
3324                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3325                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3326                                         in6_sin6_2_sin(&sin_store, sin6);
3327                                         addr = (struct sockaddr *)&sin_store;
3328                                 } else {
3329                                         addr = (struct sockaddr *)&encaps->sue_address;
3330                                 }
3331                         } else {
3332                                 addr = (struct sockaddr *)&encaps->sue_address;
3333                         }
3334 #else
3335                         addr = (struct sockaddr *)&encaps->sue_address;
3336 #endif
3337                         if (stcb) {
3338                                 net = sctp_findnet(stcb, addr);
3339                         } else {
3340                                 /*
3341                                  * We increment here since
3342                                  * sctp_findassociation_ep_addr() wil do a
3343                                  * decrement if it finds the stcb as long as
3344                                  * the locked tcb (last argument) is NOT a
3345                                  * TCB.. aka NULL.
3346                                  */
3347                                 net = NULL;
3348                                 SCTP_INP_INCR_REF(inp);
3349                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3350                                 if (stcb == NULL) {
3351                                         SCTP_INP_DECR_REF(inp);
3352                                 }
3353                         }
3354                         if ((stcb != NULL) && (net == NULL)) {
3355 #ifdef INET
3356                                 if (addr->sa_family == AF_INET) {
3357                                         struct sockaddr_in *sin;
3358
3359                                         sin = (struct sockaddr_in *)addr;
3360                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3361                                                 error = EINVAL;
3362                                                 SCTP_TCB_UNLOCK(stcb);
3363                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3364                                                 break;
3365                                         }
3366                                 } else
3367 #endif
3368 #ifdef INET6
3369                                 if (addr->sa_family == AF_INET6) {
3370                                         struct sockaddr_in6 *sin6;
3371
3372                                         sin6 = (struct sockaddr_in6 *)addr;
3373                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3374                                                 error = EINVAL;
3375                                                 SCTP_TCB_UNLOCK(stcb);
3376                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3377                                                 break;
3378                                         }
3379                                 } else
3380 #endif
3381                                 {
3382                                         error = EAFNOSUPPORT;
3383                                         SCTP_TCB_UNLOCK(stcb);
3384                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3385                                         break;
3386                                 }
3387                         }
3388
3389                         if (stcb != NULL) {
3390                                 if (net) {
3391                                         encaps->sue_port = net->port;
3392                                 } else {
3393                                         encaps->sue_port = stcb->asoc.port;
3394                                 }
3395                                 SCTP_TCB_UNLOCK(stcb);
3396                         } else {
3397                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3398                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3399                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3400                                         SCTP_INP_RLOCK(inp);
3401                                         encaps->sue_port = inp->sctp_ep.port;
3402                                         SCTP_INP_RUNLOCK(inp);
3403                                 } else {
3404                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3405                                         error = EINVAL;
3406                                 }
3407                         }
3408                         if (error == 0) {
3409                                 *optsize = sizeof(struct sctp_udpencaps);
3410                         }
3411                         break;
3412                 }
3413         case SCTP_ECN_SUPPORTED:
3414                 {
3415                         struct sctp_assoc_value *av;
3416
3417                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3418                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3419
3420                         if (stcb) {
3421                                 av->assoc_value = stcb->asoc.ecn_supported;
3422                                 SCTP_TCB_UNLOCK(stcb);
3423                         } else {
3424                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3425                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3426                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3427                                         SCTP_INP_RLOCK(inp);
3428                                         av->assoc_value = inp->ecn_supported;
3429                                         SCTP_INP_RUNLOCK(inp);
3430                                 } else {
3431                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3432                                         error = EINVAL;
3433                                 }
3434                         }
3435                         if (error == 0) {
3436                                 *optsize = sizeof(struct sctp_assoc_value);
3437                         }
3438                         break;
3439                 }
3440         case SCTP_PR_SUPPORTED:
3441                 {
3442                         struct sctp_assoc_value *av;
3443
3444                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3445                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3446
3447                         if (stcb) {
3448                                 av->assoc_value = stcb->asoc.prsctp_supported;
3449                                 SCTP_TCB_UNLOCK(stcb);
3450                         } else {
3451                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3452                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3453                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3454                                         SCTP_INP_RLOCK(inp);
3455                                         av->assoc_value = inp->prsctp_supported;
3456                                         SCTP_INP_RUNLOCK(inp);
3457                                 } else {
3458                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3459                                         error = EINVAL;
3460                                 }
3461                         }
3462                         if (error == 0) {
3463                                 *optsize = sizeof(struct sctp_assoc_value);
3464                         }
3465                         break;
3466                 }
3467         case SCTP_AUTH_SUPPORTED:
3468                 {
3469                         struct sctp_assoc_value *av;
3470
3471                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3472                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3473
3474                         if (stcb) {
3475                                 av->assoc_value = stcb->asoc.auth_supported;
3476                                 SCTP_TCB_UNLOCK(stcb);
3477                         } else {
3478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3480                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3481                                         SCTP_INP_RLOCK(inp);
3482                                         av->assoc_value = inp->auth_supported;
3483                                         SCTP_INP_RUNLOCK(inp);
3484                                 } else {
3485                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3486                                         error = EINVAL;
3487                                 }
3488                         }
3489                         if (error == 0) {
3490                                 *optsize = sizeof(struct sctp_assoc_value);
3491                         }
3492                         break;
3493                 }
3494         case SCTP_ASCONF_SUPPORTED:
3495                 {
3496                         struct sctp_assoc_value *av;
3497
3498                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3499                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3500
3501                         if (stcb) {
3502                                 av->assoc_value = stcb->asoc.asconf_supported;
3503                                 SCTP_TCB_UNLOCK(stcb);
3504                         } else {
3505                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3506                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3507                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3508                                         SCTP_INP_RLOCK(inp);
3509                                         av->assoc_value = inp->asconf_supported;
3510                                         SCTP_INP_RUNLOCK(inp);
3511                                 } else {
3512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3513                                         error = EINVAL;
3514                                 }
3515                         }
3516                         if (error == 0) {
3517                                 *optsize = sizeof(struct sctp_assoc_value);
3518                         }
3519                         break;
3520                 }
3521         case SCTP_RECONFIG_SUPPORTED:
3522                 {
3523                         struct sctp_assoc_value *av;
3524
3525                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3526                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3527
3528                         if (stcb) {
3529                                 av->assoc_value = stcb->asoc.reconfig_supported;
3530                                 SCTP_TCB_UNLOCK(stcb);
3531                         } else {
3532                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3533                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3534                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3535                                         SCTP_INP_RLOCK(inp);
3536                                         av->assoc_value = inp->reconfig_supported;
3537                                         SCTP_INP_RUNLOCK(inp);
3538                                 } else {
3539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3540                                         error = EINVAL;
3541                                 }
3542                         }
3543                         if (error == 0) {
3544                                 *optsize = sizeof(struct sctp_assoc_value);
3545                         }
3546                         break;
3547                 }
3548         case SCTP_NRSACK_SUPPORTED:
3549                 {
3550                         struct sctp_assoc_value *av;
3551
3552                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3553                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3554
3555                         if (stcb) {
3556                                 av->assoc_value = stcb->asoc.nrsack_supported;
3557                                 SCTP_TCB_UNLOCK(stcb);
3558                         } else {
3559                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3560                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3561                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3562                                         SCTP_INP_RLOCK(inp);
3563                                         av->assoc_value = inp->nrsack_supported;
3564                                         SCTP_INP_RUNLOCK(inp);
3565                                 } else {
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         if (error == 0) {
3571                                 *optsize = sizeof(struct sctp_assoc_value);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_PKTDROP_SUPPORTED:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3581
3582                         if (stcb) {
3583                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3584                                 SCTP_TCB_UNLOCK(stcb);
3585                         } else {
3586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3588                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3589                                         SCTP_INP_RLOCK(inp);
3590                                         av->assoc_value = inp->pktdrop_supported;
3591                                         SCTP_INP_RUNLOCK(inp);
3592                                 } else {
3593                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3594                                         error = EINVAL;
3595                                 }
3596                         }
3597                         if (error == 0) {
3598                                 *optsize = sizeof(struct sctp_assoc_value);
3599                         }
3600                         break;
3601                 }
3602         case SCTP_ENABLE_STREAM_RESET:
3603                 {
3604                         struct sctp_assoc_value *av;
3605
3606                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3607                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3608
3609                         if (stcb) {
3610                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3611                                 SCTP_TCB_UNLOCK(stcb);
3612                         } else {
3613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3615                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3616                                         SCTP_INP_RLOCK(inp);
3617                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3618                                         SCTP_INP_RUNLOCK(inp);
3619                                 } else {
3620                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3621                                         error = EINVAL;
3622                                 }
3623                         }
3624                         if (error == 0) {
3625                                 *optsize = sizeof(struct sctp_assoc_value);
3626                         }
3627                         break;
3628                 }
3629         case SCTP_PR_STREAM_STATUS:
3630                 {
3631                         struct sctp_prstatus *sprstat;
3632                         uint16_t sid;
3633                         uint16_t policy;
3634
3635                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3636                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3637
3638                         sid = sprstat->sprstat_sid;
3639                         policy = sprstat->sprstat_policy;
3640 #if defined(SCTP_DETAILED_STR_STATS)
3641                         if ((stcb != NULL) &&
3642                             (sid < stcb->asoc.streamoutcnt) &&
3643                             (policy != SCTP_PR_SCTP_NONE) &&
3644                             ((policy <= SCTP_PR_SCTP_MAX) ||
3645                             (policy == SCTP_PR_SCTP_ALL))) {
3646                                 if (policy == SCTP_PR_SCTP_ALL) {
3647                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3648                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3649                                 } else {
3650                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3651                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3652                                 }
3653 #else
3654                         if ((stcb != NULL) &&
3655                             (sid < stcb->asoc.streamoutcnt) &&
3656                             (policy == SCTP_PR_SCTP_ALL)) {
3657                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3658                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3659 #endif
3660                         } else {
3661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3662                                 error = EINVAL;
3663                         }
3664                         if (stcb != NULL) {
3665                                 SCTP_TCB_UNLOCK(stcb);
3666                         }
3667                         if (error == 0) {
3668                                 *optsize = sizeof(struct sctp_prstatus);
3669                         }
3670                         break;
3671                 }
3672         case SCTP_PR_ASSOC_STATUS:
3673                 {
3674                         struct sctp_prstatus *sprstat;
3675                         uint16_t policy;
3676
3677                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3678                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3679
3680                         policy = sprstat->sprstat_policy;
3681                         if ((stcb != NULL) &&
3682                             (policy != SCTP_PR_SCTP_NONE) &&
3683                             ((policy <= SCTP_PR_SCTP_MAX) ||
3684                             (policy == SCTP_PR_SCTP_ALL))) {
3685                                 if (policy == SCTP_PR_SCTP_ALL) {
3686                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3687                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3688                                 } else {
3689                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3690                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3691                                 }
3692                         } else {
3693                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3694                                 error = EINVAL;
3695                         }
3696                         if (stcb != NULL) {
3697                                 SCTP_TCB_UNLOCK(stcb);
3698                         }
3699                         if (error == 0) {
3700                                 *optsize = sizeof(struct sctp_prstatus);
3701                         }
3702                         break;
3703                 }
3704         case SCTP_MAX_CWND:
3705                 {
3706                         struct sctp_assoc_value *av;
3707
3708                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3709                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3710
3711                         if (stcb) {
3712                                 av->assoc_value = stcb->asoc.max_cwnd;
3713                                 SCTP_TCB_UNLOCK(stcb);
3714                         } else {
3715                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3716                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3717                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3718                                         SCTP_INP_RLOCK(inp);
3719                                         av->assoc_value = inp->max_cwnd;
3720                                         SCTP_INP_RUNLOCK(inp);
3721                                 } else {
3722                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3723                                         error = EINVAL;
3724                                 }
3725                         }
3726                         if (error == 0) {
3727                                 *optsize = sizeof(struct sctp_assoc_value);
3728                         }
3729                         break;
3730                 }
3731         default:
3732                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3733                 error = ENOPROTOOPT;
3734                 break;
3735         }                       /* end switch (sopt->sopt_name) */
3736         if (error) {
3737                 *optsize = 0;
3738         }
3739         return (error);
3740 }
3741
3742 static int
3743 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3744     void *p)
3745 {
3746         int error, set_opt;
3747         uint32_t *mopt;
3748         struct sctp_tcb *stcb = NULL;
3749         struct sctp_inpcb *inp = NULL;
3750         uint32_t vrf_id;
3751
3752         if (optval == NULL) {
3753                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3754                 return (EINVAL);
3755         }
3756         inp = (struct sctp_inpcb *)so->so_pcb;
3757         if (inp == NULL) {
3758                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3759                 return (EINVAL);
3760         }
3761         vrf_id = inp->def_vrf_id;
3762
3763         error = 0;
3764         switch (optname) {
3765         case SCTP_NODELAY:
3766         case SCTP_AUTOCLOSE:
3767         case SCTP_AUTO_ASCONF:
3768         case SCTP_EXPLICIT_EOR:
3769         case SCTP_DISABLE_FRAGMENTS:
3770         case SCTP_USE_EXT_RCVINFO:
3771         case SCTP_I_WANT_MAPPED_V4_ADDR:
3772                 /* copy in the option value */
3773                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3774                 set_opt = 0;
3775                 if (error)
3776                         break;
3777                 switch (optname) {
3778                 case SCTP_DISABLE_FRAGMENTS:
3779                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3780                         break;
3781                 case SCTP_AUTO_ASCONF:
3782                         /*
3783                          * NOTE: we don't really support this flag
3784                          */
3785                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3786                                 /* only valid for bound all sockets */
3787                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3788                                     (*mopt != 0)) {
3789                                         /* forbidden by admin */
3790                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3791                                         return (EPERM);
3792                                 }
3793                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3794                         } else {
3795                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3796                                 return (EINVAL);
3797                         }
3798                         break;
3799                 case SCTP_EXPLICIT_EOR:
3800                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3801                         break;
3802                 case SCTP_USE_EXT_RCVINFO:
3803                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3804                         break;
3805                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3806                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3807                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3808                         } else {
3809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3810                                 return (EINVAL);
3811                         }
3812                         break;
3813                 case SCTP_NODELAY:
3814                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3815                         break;
3816                 case SCTP_AUTOCLOSE:
3817                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3818                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3819                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3820                                 return (EINVAL);
3821                         }
3822                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3823                         /*
3824                          * The value is in ticks. Note this does not effect
3825                          * old associations, only new ones.
3826                          */
3827                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3828                         break;
3829                 }
3830                 SCTP_INP_WLOCK(inp);
3831                 if (*mopt != 0) {
3832                         sctp_feature_on(inp, set_opt);
3833                 } else {
3834                         sctp_feature_off(inp, set_opt);
3835                 }
3836                 SCTP_INP_WUNLOCK(inp);
3837                 break;
3838         case SCTP_REUSE_PORT:
3839                 {
3840                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3841                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3842                                 /* Can't set it after we are bound */
3843                                 error = EINVAL;
3844                                 break;
3845                         }
3846                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3847                                 /* Can't do this for a 1-m socket */
3848                                 error = EINVAL;
3849                                 break;
3850                         }
3851                         if (optval)
3852                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3853                         else
3854                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3855                         break;
3856                 }
3857         case SCTP_PARTIAL_DELIVERY_POINT:
3858                 {
3859                         uint32_t *value;
3860
3861                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3862                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3864                                 error = EINVAL;
3865                                 break;
3866                         }
3867                         inp->partial_delivery_point = *value;
3868                         break;
3869                 }
3870         case SCTP_FRAGMENT_INTERLEAVE:
3871                 /* not yet until we re-write sctp_recvmsg() */
3872                 {
3873                         uint32_t *level;
3874
3875                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3876                         if (*level == SCTP_FRAG_LEVEL_2) {
3877                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3878                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3879                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3880                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3882                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3883                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3884                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3885
3886                         } else {
3887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3888                                 error = EINVAL;
3889                         }
3890                         break;
3891                 }
3892         case SCTP_INTERLEAVING_SUPPORTED:
3893                 {
3894                         struct sctp_assoc_value *av;
3895
3896                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3897                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3898
3899                         if (stcb) {
3900                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3901                                 error = EINVAL;
3902                                 SCTP_TCB_UNLOCK(stcb);
3903                         } else {
3904                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3905                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3906                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3907                                         SCTP_INP_WLOCK(inp);
3908                                         if (av->assoc_value == 0) {
3909                                                 inp->idata_supported = 0;
3910                                         } else {
3911                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3912                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3913                                                         inp->idata_supported = 1;
3914                                                 } else {
3915                                                         /*
3916                                                          * Must have Frag
3917                                                          * interleave and
3918                                                          * stream interleave
3919                                                          * on
3920                                                          */
3921                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3922                                                         error = EINVAL;
3923                                                 }
3924                                         }
3925                                         SCTP_INP_WUNLOCK(inp);
3926                                 } else {
3927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3928                                         error = EINVAL;
3929                                 }
3930                         }
3931                         break;
3932                 }
3933         case SCTP_CMT_ON_OFF:
3934                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3935                         struct sctp_assoc_value *av;
3936
3937                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3938                         if (av->assoc_value > SCTP_CMT_MAX) {
3939                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3940                                 error = EINVAL;
3941                                 break;
3942                         }
3943                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3944                         if (stcb) {
3945                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3946                                 SCTP_TCB_UNLOCK(stcb);
3947                         } else {
3948                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3949                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3950                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3951                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3952                                         SCTP_INP_WLOCK(inp);
3953                                         inp->sctp_cmt_on_off = av->assoc_value;
3954                                         SCTP_INP_WUNLOCK(inp);
3955                                 }
3956                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3957                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3958                                         SCTP_INP_RLOCK(inp);
3959                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3960                                                 SCTP_TCB_LOCK(stcb);
3961                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3962                                                 SCTP_TCB_UNLOCK(stcb);
3963                                         }
3964                                         SCTP_INP_RUNLOCK(inp);
3965                                 }
3966                         }
3967                 } else {
3968                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3969                         error = ENOPROTOOPT;
3970                 }
3971                 break;
3972         case SCTP_PLUGGABLE_CC:
3973                 {
3974                         struct sctp_assoc_value *av;
3975                         struct sctp_nets *net;
3976
3977                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3978                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3979                             (av->assoc_value != SCTP_CC_HSTCP) &&
3980                             (av->assoc_value != SCTP_CC_HTCP) &&
3981                             (av->assoc_value != SCTP_CC_RTCC)) {
3982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3983                                 error = EINVAL;
3984                                 break;
3985                         }
3986                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3987                         if (stcb) {
3988                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3989                                 stcb->asoc.congestion_control_module = av->assoc_value;
3990                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3991                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3992                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3993                                         }
3994                                 }
3995                                 SCTP_TCB_UNLOCK(stcb);
3996                         } else {
3997                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3998                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3999                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4000                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4001                                         SCTP_INP_WLOCK(inp);
4002                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4003                                         SCTP_INP_WUNLOCK(inp);
4004                                 }
4005                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4006                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4007                                         SCTP_INP_RLOCK(inp);
4008                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4009                                                 SCTP_TCB_LOCK(stcb);
4010                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4011                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4012                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4013                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4014                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4015                                                         }
4016                                                 }
4017                                                 SCTP_TCB_UNLOCK(stcb);
4018                                         }
4019                                         SCTP_INP_RUNLOCK(inp);
4020                                 }
4021                         }
4022                         break;
4023                 }
4024         case SCTP_CC_OPTION:
4025                 {
4026                         struct sctp_cc_option *cc_opt;
4027
4028                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4029                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4030                         if (stcb == NULL) {
4031                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4032                                         SCTP_INP_RLOCK(inp);
4033                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4034                                                 SCTP_TCB_LOCK(stcb);
4035                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4036                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4037                                                 }
4038                                                 SCTP_TCB_UNLOCK(stcb);
4039                                         }
4040                                         SCTP_INP_RUNLOCK(inp);
4041                                 } else {
4042                                         error = EINVAL;
4043                                 }
4044                         } else {
4045                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4046                                         error = ENOTSUP;
4047                                 } else {
4048                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4049                                             cc_opt);
4050                                 }
4051                                 SCTP_TCB_UNLOCK(stcb);
4052                         }
4053                         break;
4054                 }
4055         case SCTP_PLUGGABLE_SS:
4056                 {
4057                         struct sctp_assoc_value *av;
4058
4059                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4060                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4061                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4062                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4063                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4064                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4065                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4066                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4067                                 error = EINVAL;
4068                                 break;
4069                         }
4070                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4071                         if (stcb) {
4072                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4073                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4074                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4075                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4076                                 SCTP_TCB_UNLOCK(stcb);
4077                         } else {
4078                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4079                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4080                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4081                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4082                                         SCTP_INP_WLOCK(inp);
4083                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4084                                         SCTP_INP_WUNLOCK(inp);
4085                                 }
4086                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4087                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4088                                         SCTP_INP_RLOCK(inp);
4089                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4090                                                 SCTP_TCB_LOCK(stcb);
4091                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4092                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4093                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4094                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4095                                                 SCTP_TCB_UNLOCK(stcb);
4096                                         }
4097                                         SCTP_INP_RUNLOCK(inp);
4098                                 }
4099                         }
4100                         break;
4101                 }
4102         case SCTP_SS_VALUE:
4103                 {
4104                         struct sctp_stream_value *av;
4105
4106                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4107                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4108                         if (stcb) {
4109                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4110                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4111                                     av->stream_value) < 0)) {
4112                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4113                                         error = EINVAL;
4114                                 }
4115                                 SCTP_TCB_UNLOCK(stcb);
4116                         } else {
4117                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4118                                         SCTP_INP_RLOCK(inp);
4119                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4120                                                 SCTP_TCB_LOCK(stcb);
4121                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4122                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4123                                                             &stcb->asoc,
4124                                                             &stcb->asoc.strmout[av->stream_id],
4125                                                             av->stream_value);
4126                                                 }
4127                                                 SCTP_TCB_UNLOCK(stcb);
4128                                         }
4129                                         SCTP_INP_RUNLOCK(inp);
4130                                 } else {
4131                                         /*
4132                                          * Can't set stream value without
4133                                          * association
4134                                          */
4135                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4136                                         error = EINVAL;
4137                                 }
4138                         }
4139                         break;
4140                 }
4141         case SCTP_CLR_STAT_LOG:
4142                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4143                 error = EOPNOTSUPP;
4144                 break;
4145         case SCTP_CONTEXT:
4146                 {
4147                         struct sctp_assoc_value *av;
4148
4149                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4150                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4151
4152                         if (stcb) {
4153                                 stcb->asoc.context = av->assoc_value;
4154                                 SCTP_TCB_UNLOCK(stcb);
4155                         } else {
4156                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4157                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4158                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4159                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4160                                         SCTP_INP_WLOCK(inp);
4161                                         inp->sctp_context = av->assoc_value;
4162                                         SCTP_INP_WUNLOCK(inp);
4163                                 }
4164                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4165                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4166                                         SCTP_INP_RLOCK(inp);
4167                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4168                                                 SCTP_TCB_LOCK(stcb);
4169                                                 stcb->asoc.context = av->assoc_value;
4170                                                 SCTP_TCB_UNLOCK(stcb);
4171                                         }
4172                                         SCTP_INP_RUNLOCK(inp);
4173                                 }
4174                         }
4175                         break;
4176                 }
4177         case SCTP_VRF_ID:
4178                 {
4179                         uint32_t *default_vrfid;
4180
4181                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4182                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4183                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4184                                 error = EINVAL;
4185                                 break;
4186                         }
4187                         inp->def_vrf_id = *default_vrfid;
4188                         break;
4189                 }
4190         case SCTP_DEL_VRF_ID:
4191                 {
4192                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4193                         error = EOPNOTSUPP;
4194                         break;
4195                 }
4196         case SCTP_ADD_VRF_ID:
4197                 {
4198                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4199                         error = EOPNOTSUPP;
4200                         break;
4201                 }
4202         case SCTP_DELAYED_SACK:
4203                 {
4204                         struct sctp_sack_info *sack;
4205
4206                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4207                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4208                         if (sack->sack_delay) {
4209                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4210                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4211                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4212                                         sack->sack_delay = TICKS_TO_MSEC(1);
4213                                 }
4214                         }
4215                         if (stcb) {
4216                                 if (sack->sack_delay) {
4217                                         stcb->asoc.delayed_ack = sack->sack_delay;
4218                                 }
4219                                 if (sack->sack_freq) {
4220                                         stcb->asoc.sack_freq = sack->sack_freq;
4221                                 }
4222                                 SCTP_TCB_UNLOCK(stcb);
4223                         } else {
4224                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4225                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4226                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4227                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4228                                         SCTP_INP_WLOCK(inp);
4229                                         if (sack->sack_delay) {
4230                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4231                                         }
4232                                         if (sack->sack_freq) {
4233                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4234                                         }
4235                                         SCTP_INP_WUNLOCK(inp);
4236                                 }
4237                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4238                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4239                                         SCTP_INP_RLOCK(inp);
4240                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4241                                                 SCTP_TCB_LOCK(stcb);
4242                                                 if (sack->sack_delay) {
4243                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4244                                                 }
4245                                                 if (sack->sack_freq) {
4246                                                         stcb->asoc.sack_freq = sack->sack_freq;
4247                                                 }
4248                                                 SCTP_TCB_UNLOCK(stcb);
4249                                         }
4250                                         SCTP_INP_RUNLOCK(inp);
4251                                 }
4252                         }
4253                         break;
4254                 }
4255         case SCTP_AUTH_CHUNK:
4256                 {
4257                         struct sctp_authchunk *sauth;
4258
4259                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4260
4261                         SCTP_INP_WLOCK(inp);
4262                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4263                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4264                                 error = EINVAL;
4265                         } else {
4266                                 inp->auth_supported = 1;
4267                         }
4268                         SCTP_INP_WUNLOCK(inp);
4269                         break;
4270                 }
4271         case SCTP_AUTH_KEY:
4272                 {
4273                         struct sctp_authkey *sca;
4274                         struct sctp_keyhead *shared_keys;
4275                         sctp_sharedkey_t *shared_key;
4276                         sctp_key_t *key = NULL;
4277                         size_t size;
4278
4279                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4280                         if (sca->sca_keylength == 0) {
4281                                 size = optsize - sizeof(struct sctp_authkey);
4282                         } else {
4283                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4284                                         size = sca->sca_keylength;
4285                                 } else {
4286                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4287                                         error = EINVAL;
4288                                         break;
4289                                 }
4290                         }
4291                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4292
4293                         if (stcb) {
4294                                 shared_keys = &stcb->asoc.shared_keys;
4295                                 /* clear the cached keys for this key id */
4296                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4297                                 /*
4298                                  * create the new shared key and
4299                                  * insert/replace it
4300                                  */
4301                                 if (size > 0) {
4302                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4303                                         if (key == NULL) {
4304                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4305                                                 error = ENOMEM;
4306                                                 SCTP_TCB_UNLOCK(stcb);
4307                                                 break;
4308                                         }
4309                                 }
4310                                 shared_key = sctp_alloc_sharedkey();
4311                                 if (shared_key == NULL) {
4312                                         sctp_free_key(key);
4313                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4314                                         error = ENOMEM;
4315                                         SCTP_TCB_UNLOCK(stcb);
4316                                         break;
4317                                 }
4318                                 shared_key->key = key;
4319                                 shared_key->keyid = sca->sca_keynumber;
4320                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4321                                 SCTP_TCB_UNLOCK(stcb);
4322                         } else {
4323                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4324                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4325                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4326                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4327                                         SCTP_INP_WLOCK(inp);
4328                                         shared_keys = &inp->sctp_ep.shared_keys;
4329                                         /*
4330                                          * clear the cached keys on all
4331                                          * assocs for this key id
4332                                          */
4333                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4334                                         /*
4335                                          * create the new shared key and
4336                                          * insert/replace it
4337                                          */
4338                                         if (size > 0) {
4339                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4340                                                 if (key == NULL) {
4341                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4342                                                         error = ENOMEM;
4343                                                         SCTP_INP_WUNLOCK(inp);
4344                                                         break;
4345                                                 }
4346                                         }
4347                                         shared_key = sctp_alloc_sharedkey();
4348                                         if (shared_key == NULL) {
4349                                                 sctp_free_key(key);
4350                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4351                                                 error = ENOMEM;
4352                                                 SCTP_INP_WUNLOCK(inp);
4353                                                 break;
4354                                         }
4355                                         shared_key->key = key;
4356                                         shared_key->keyid = sca->sca_keynumber;
4357                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4358                                         SCTP_INP_WUNLOCK(inp);
4359                                 }
4360                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4361                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4362                                         SCTP_INP_RLOCK(inp);
4363                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4364                                                 SCTP_TCB_LOCK(stcb);
4365                                                 shared_keys = &stcb->asoc.shared_keys;
4366                                                 /*
4367                                                  * clear the cached keys for
4368                                                  * this key id
4369                                                  */
4370                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4371                                                 /*
4372                                                  * create the new shared key
4373                                                  * and insert/replace it
4374                                                  */
4375                                                 if (size > 0) {
4376                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4377                                                         if (key == NULL) {
4378                                                                 SCTP_TCB_UNLOCK(stcb);
4379                                                                 continue;
4380                                                         }
4381                                                 }
4382                                                 shared_key = sctp_alloc_sharedkey();
4383                                                 if (shared_key == NULL) {
4384                                                         sctp_free_key(key);
4385                                                         SCTP_TCB_UNLOCK(stcb);
4386                                                         continue;
4387                                                 }
4388                                                 shared_key->key = key;
4389                                                 shared_key->keyid = sca->sca_keynumber;
4390                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4391                                                 SCTP_TCB_UNLOCK(stcb);
4392                                         }
4393                                         SCTP_INP_RUNLOCK(inp);
4394                                 }
4395                         }
4396                         break;
4397                 }
4398         case SCTP_HMAC_IDENT:
4399                 {
4400                         struct sctp_hmacalgo *shmac;
4401                         sctp_hmaclist_t *hmaclist;
4402                         uint16_t hmacid;
4403                         uint32_t i;
4404
4405                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4406                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4407                             (shmac->shmac_number_of_idents > 0xffff)) {
4408                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4409                                 error = EINVAL;
4410                                 break;
4411                         }
4412
4413                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4414                         if (hmaclist == NULL) {
4415                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4416                                 error = ENOMEM;
4417                                 break;
4418                         }
4419                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4420                                 hmacid = shmac->shmac_idents[i];
4421                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4422                                          /* invalid HMACs were found */ ;
4423                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4424                                         error = EINVAL;
4425                                         sctp_free_hmaclist(hmaclist);
4426                                         goto sctp_set_hmac_done;
4427                                 }
4428                         }
4429                         for (i = 0; i < hmaclist->num_algo; i++) {
4430                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4431                                         /* already in list */
4432                                         break;
4433                                 }
4434                         }
4435                         if (i == hmaclist->num_algo) {
4436                                 /* not found in list */
4437                                 sctp_free_hmaclist(hmaclist);
4438                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4439                                 error = EINVAL;
4440                                 break;
4441                         }
4442                         /* set it on the endpoint */
4443                         SCTP_INP_WLOCK(inp);
4444                         if (inp->sctp_ep.local_hmacs)
4445                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4446                         inp->sctp_ep.local_hmacs = hmaclist;
4447                         SCTP_INP_WUNLOCK(inp);
4448         sctp_set_hmac_done:
4449                         break;
4450                 }
4451         case SCTP_AUTH_ACTIVE_KEY:
4452                 {
4453                         struct sctp_authkeyid *scact;
4454
4455                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4456                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4457
4458                         /* set the active key on the right place */
4459                         if (stcb) {
4460                                 /* set the active key on the assoc */
4461                                 if (sctp_auth_setactivekey(stcb,
4462                                     scact->scact_keynumber)) {
4463                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4464                                             SCTP_FROM_SCTP_USRREQ,
4465                                             EINVAL);
4466                                         error = EINVAL;
4467                                 }
4468                                 SCTP_TCB_UNLOCK(stcb);
4469                         } else {
4470                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4471                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4472                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4473                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4474                                         SCTP_INP_WLOCK(inp);
4475                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4476                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4477                                                 error = EINVAL;
4478                                         }
4479                                         SCTP_INP_WUNLOCK(inp);
4480                                 }
4481                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4482                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4483                                         SCTP_INP_RLOCK(inp);
4484                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4485                                                 SCTP_TCB_LOCK(stcb);
4486                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4487                                                 SCTP_TCB_UNLOCK(stcb);
4488                                         }
4489                                         SCTP_INP_RUNLOCK(inp);
4490                                 }
4491                         }
4492                         break;
4493                 }
4494         case SCTP_AUTH_DELETE_KEY:
4495                 {
4496                         struct sctp_authkeyid *scdel;
4497
4498                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4499                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4500
4501                         /* delete the key from the right place */
4502                         if (stcb) {
4503                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4504                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4505                                         error = EINVAL;
4506                                 }
4507                                 SCTP_TCB_UNLOCK(stcb);
4508                         } else {
4509                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4510                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4511                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4512                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4513                                         SCTP_INP_WLOCK(inp);
4514                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4515                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4516                                                 error = EINVAL;
4517                                         }
4518                                         SCTP_INP_WUNLOCK(inp);
4519                                 }
4520                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4521                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4522                                         SCTP_INP_RLOCK(inp);
4523                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4524                                                 SCTP_TCB_LOCK(stcb);
4525                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4526                                                 SCTP_TCB_UNLOCK(stcb);
4527                                         }
4528                                         SCTP_INP_RUNLOCK(inp);
4529                                 }
4530                         }
4531                         break;
4532                 }
4533         case SCTP_AUTH_DEACTIVATE_KEY:
4534                 {
4535                         struct sctp_authkeyid *keyid;
4536
4537                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4538                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4539
4540                         /* deactivate the key from the right place */
4541                         if (stcb) {
4542                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4543                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4544                                         error = EINVAL;
4545                                 }
4546                                 SCTP_TCB_UNLOCK(stcb);
4547                         } else {
4548                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4549                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4550                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4551                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4552                                         SCTP_INP_WLOCK(inp);
4553                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4554                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4555                                                 error = EINVAL;
4556                                         }
4557                                         SCTP_INP_WUNLOCK(inp);
4558                                 }
4559                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4560                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4561                                         SCTP_INP_RLOCK(inp);
4562                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4563                                                 SCTP_TCB_LOCK(stcb);
4564                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4565                                                 SCTP_TCB_UNLOCK(stcb);
4566                                         }
4567                                         SCTP_INP_RUNLOCK(inp);
4568                                 }
4569                         }
4570                         break;
4571                 }
4572         case SCTP_ENABLE_STREAM_RESET:
4573                 {
4574                         struct sctp_assoc_value *av;
4575
4576                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4577                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4578                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4579                                 error = EINVAL;
4580                                 break;
4581                         }
4582                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4583                         if (stcb) {
4584                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4585                                 SCTP_TCB_UNLOCK(stcb);
4586                         } else {
4587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4589                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4590                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4591                                         SCTP_INP_WLOCK(inp);
4592                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4593                                         SCTP_INP_WUNLOCK(inp);
4594                                 }
4595                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4596                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4597                                         SCTP_INP_RLOCK(inp);
4598                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4599                                                 SCTP_TCB_LOCK(stcb);
4600                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4601                                                 SCTP_TCB_UNLOCK(stcb);
4602                                         }
4603                                         SCTP_INP_RUNLOCK(inp);
4604                                 }
4605
4606                         }
4607                         break;
4608                 }
4609         case SCTP_RESET_STREAMS:
4610                 {
4611                         struct sctp_reset_streams *strrst;
4612                         int i, send_out = 0;
4613                         int send_in = 0;
4614
4615                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4616                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4617                         if (stcb == NULL) {
4618                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4619                                 error = ENOENT;
4620                                 break;
4621                         }
4622                         if (stcb->asoc.reconfig_supported == 0) {
4623                                 /*
4624                                  * Peer does not support the chunk type.
4625                                  */
4626                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4627                                 error = EOPNOTSUPP;
4628                                 SCTP_TCB_UNLOCK(stcb);
4629                                 break;
4630                         }
4631                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4632                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4633                                 error = EINVAL;
4634                                 SCTP_TCB_UNLOCK(stcb);
4635                                 break;
4636                         }
4637                         if (sizeof(struct sctp_reset_streams) +
4638                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4639                                 error = EINVAL;
4640                                 SCTP_TCB_UNLOCK(stcb);
4641                                 break;
4642                         }
4643                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4644                                 send_in = 1;
4645                                 if (stcb->asoc.stream_reset_outstanding) {
4646                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4647                                         error = EALREADY;
4648                                         SCTP_TCB_UNLOCK(stcb);
4649                                         break;
4650                                 }
4651                         }
4652                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4653                                 send_out = 1;
4654                         }
4655                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4656                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4657                                 error = ENOMEM;
4658                                 SCTP_TCB_UNLOCK(stcb);
4659                                 break;
4660                         }
4661                         if ((send_in == 0) && (send_out == 0)) {
4662                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4663                                 error = EINVAL;
4664                                 SCTP_TCB_UNLOCK(stcb);
4665                                 break;
4666                         }
4667                         for (i = 0; i < strrst->srs_number_streams; i++) {
4668                                 if ((send_in) &&
4669                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4670                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4671                                         error = EINVAL;
4672                                         break;
4673                                 }
4674                                 if ((send_out) &&
4675                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4676                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4677                                         error = EINVAL;
4678                                         break;
4679                                 }
4680                         }
4681                         if (error) {
4682                                 SCTP_TCB_UNLOCK(stcb);
4683                                 break;
4684                         }
4685                         if (send_out) {
4686                                 int cnt;
4687                                 uint16_t strm;
4688
4689                                 if (strrst->srs_number_streams) {
4690                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4691                                                 strm = strrst->srs_stream_list[i];
4692                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4693                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4694                                                         cnt++;
4695                                                 }
4696                                         }
4697                                 } else {
4698                                         /* Its all */
4699                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4700                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4701                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4702                                                         cnt++;
4703                                                 }
4704                                         }
4705                                 }
4706                         }
4707                         if (send_in) {
4708                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4709                                     strrst->srs_stream_list,
4710                                     send_in, 0, 0, 0, 0, 0);
4711                         } else {
4712                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4713                         }
4714                         if (error == 0) {
4715                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4716                         } else {
4717                                 /*
4718                                  * For outgoing streams don't report any
4719                                  * problems in sending the request to the
4720                                  * application. XXX: Double check resetting
4721                                  * incoming streams.
4722                                  */
4723                                 error = 0;
4724                         }
4725                         SCTP_TCB_UNLOCK(stcb);
4726                         break;
4727                 }
4728         case SCTP_ADD_STREAMS:
4729                 {
4730                         struct sctp_add_streams *stradd;
4731                         uint8_t addstream = 0;
4732                         uint16_t add_o_strmcnt = 0;
4733                         uint16_t add_i_strmcnt = 0;
4734
4735                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4736                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4737                         if (stcb == NULL) {
4738                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4739                                 error = ENOENT;
4740                                 break;
4741                         }
4742                         if (stcb->asoc.reconfig_supported == 0) {
4743                                 /*
4744                                  * Peer does not support the chunk type.
4745                                  */
4746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4747                                 error = EOPNOTSUPP;
4748                                 SCTP_TCB_UNLOCK(stcb);
4749                                 break;
4750                         }
4751                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4752                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4753                                 error = EINVAL;
4754                                 SCTP_TCB_UNLOCK(stcb);
4755                                 break;
4756                         }
4757                         if (stcb->asoc.stream_reset_outstanding) {
4758                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4759                                 error = EALREADY;
4760                                 SCTP_TCB_UNLOCK(stcb);
4761                                 break;
4762                         }
4763                         if ((stradd->sas_outstrms == 0) &&
4764                             (stradd->sas_instrms == 0)) {
4765                                 error = EINVAL;
4766                                 goto skip_stuff;
4767                         }
4768                         if (stradd->sas_outstrms) {
4769                                 addstream = 1;
4770                                 /* We allocate here */
4771                                 add_o_strmcnt = stradd->sas_outstrms;
4772                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4773                                         /* You can't have more than 64k */
4774                                         error = EINVAL;
4775                                         goto skip_stuff;
4776                                 }
4777                         }
4778                         if (stradd->sas_instrms) {
4779                                 int cnt;
4780
4781                                 addstream |= 2;
4782                                 /*
4783                                  * We allocate inside
4784                                  * sctp_send_str_reset_req()
4785                                  */
4786                                 add_i_strmcnt = stradd->sas_instrms;
4787                                 cnt = add_i_strmcnt;
4788                                 cnt += stcb->asoc.streamincnt;
4789                                 if (cnt > 0x0000ffff) {
4790                                         /* You can't have more than 64k */
4791                                         error = EINVAL;
4792                                         goto skip_stuff;
4793                                 }
4794                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4795                                         /* More than you are allowed */
4796                                         error = EINVAL;
4797                                         goto skip_stuff;
4798                                 }
4799                         }
4800                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4801                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4802         skip_stuff:
4803                         SCTP_TCB_UNLOCK(stcb);
4804                         break;
4805                 }
4806         case SCTP_RESET_ASSOC:
4807                 {
4808                         int i;
4809                         uint32_t *value;
4810
4811                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4812                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4813                         if (stcb == NULL) {
4814                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4815                                 error = ENOENT;
4816                                 break;
4817                         }
4818                         if (stcb->asoc.reconfig_supported == 0) {
4819                                 /*
4820                                  * Peer does not support the chunk type.
4821                                  */
4822                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4823                                 error = EOPNOTSUPP;
4824                                 SCTP_TCB_UNLOCK(stcb);
4825                                 break;
4826                         }
4827                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4829                                 error = EINVAL;
4830                                 SCTP_TCB_UNLOCK(stcb);
4831                                 break;
4832                         }
4833                         if (stcb->asoc.stream_reset_outstanding) {
4834                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4835                                 error = EALREADY;
4836                                 SCTP_TCB_UNLOCK(stcb);
4837                                 break;
4838                         }
4839                         /*
4840                          * Is there any data pending in the send or sent
4841                          * queues?
4842                          */
4843                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4844                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4845                 busy_out:
4846                                 error = EBUSY;
4847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4848                                 SCTP_TCB_UNLOCK(stcb);
4849                                 break;
4850                         }
4851                         /* Do any streams have data queued? */
4852                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4853                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4854                                         goto busy_out;
4855                                 }
4856                         }
4857                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4858                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4859                         SCTP_TCB_UNLOCK(stcb);
4860                         break;
4861                 }
4862         case SCTP_CONNECT_X:
4863                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4864                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4865                         error = EINVAL;
4866                         break;
4867                 }
4868                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4869                 break;
4870         case SCTP_CONNECT_X_DELAYED:
4871                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4872                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4873                         error = EINVAL;
4874                         break;
4875                 }
4876                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4877                 break;
4878         case SCTP_CONNECT_X_COMPLETE:
4879                 {
4880                         struct sockaddr *sa;
4881
4882                         /* FIXME MT: check correct? */
4883                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4884
4885                         /* find tcb */
4886                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4887                                 SCTP_INP_RLOCK(inp);
4888                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4889                                 if (stcb) {
4890                                         SCTP_TCB_LOCK(stcb);
4891                                 }
4892                                 SCTP_INP_RUNLOCK(inp);
4893                         } else {
4894                                 /*
4895                                  * We increment here since
4896                                  * sctp_findassociation_ep_addr() wil do a
4897                                  * decrement if it finds the stcb as long as
4898                                  * the locked tcb (last argument) is NOT a
4899                                  * TCB.. aka NULL.
4900                                  */
4901                                 SCTP_INP_INCR_REF(inp);
4902                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4903                                 if (stcb == NULL) {
4904                                         SCTP_INP_DECR_REF(inp);
4905                                 }
4906                         }
4907
4908                         if (stcb == NULL) {
4909                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4910                                 error = ENOENT;
4911                                 break;
4912                         }
4913                         if (stcb->asoc.delayed_connection == 1) {
4914                                 stcb->asoc.delayed_connection = 0;
4915                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4916                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4917                                     stcb->asoc.primary_destination,
4918                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4919                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4920                         } else {
4921                                 /*
4922                                  * already expired or did not use delayed
4923                                  * connectx
4924                                  */
4925                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4926                                 error = EALREADY;
4927                         }
4928                         SCTP_TCB_UNLOCK(stcb);
4929                         break;
4930                 }
4931         case SCTP_MAX_BURST:
4932                 {
4933                         struct sctp_assoc_value *av;
4934
4935                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4936                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4937
4938                         if (stcb) {
4939                                 stcb->asoc.max_burst = av->assoc_value;
4940                                 SCTP_TCB_UNLOCK(stcb);
4941                         } else {
4942                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4943                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4944                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4945                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4946                                         SCTP_INP_WLOCK(inp);
4947                                         inp->sctp_ep.max_burst = av->assoc_value;
4948                                         SCTP_INP_WUNLOCK(inp);
4949                                 }
4950                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4951                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4952                                         SCTP_INP_RLOCK(inp);
4953                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4954                                                 SCTP_TCB_LOCK(stcb);
4955                                                 stcb->asoc.max_burst = av->assoc_value;
4956                                                 SCTP_TCB_UNLOCK(stcb);
4957                                         }
4958                                         SCTP_INP_RUNLOCK(inp);
4959                                 }
4960                         }
4961                         break;
4962                 }
4963         case SCTP_MAXSEG:
4964                 {
4965                         struct sctp_assoc_value *av;
4966                         int ovh;
4967
4968                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4969                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4970
4971                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4972                                 ovh = SCTP_MED_OVERHEAD;
4973                         } else {
4974                                 ovh = SCTP_MED_V4_OVERHEAD;
4975                         }
4976                         if (stcb) {
4977                                 if (av->assoc_value) {
4978                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4979                                 } else {
4980                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4981                                 }
4982                                 SCTP_TCB_UNLOCK(stcb);
4983                         } else {
4984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4985                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4986                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4987                                         SCTP_INP_WLOCK(inp);
4988                                         /*
4989                                          * FIXME MT: I think this is not in
4990                                          * tune with the API ID
4991                                          */
4992                                         if (av->assoc_value) {
4993                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4994                                         } else {
4995                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4996                                         }
4997                                         SCTP_INP_WUNLOCK(inp);
4998                                 } else {
4999                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5000                                         error = EINVAL;
5001                                 }
5002                         }
5003                         break;
5004                 }
5005         case SCTP_EVENTS:
5006                 {
5007                         struct sctp_event_subscribe *events;
5008
5009                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5010
5011                         SCTP_INP_WLOCK(inp);
5012                         if (events->sctp_data_io_event) {
5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5014                         } else {
5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5016                         }
5017
5018                         if (events->sctp_association_event) {
5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5020                         } else {
5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5022                         }
5023
5024                         if (events->sctp_address_event) {
5025                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5026                         } else {
5027                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5028                         }
5029
5030                         if (events->sctp_send_failure_event) {
5031                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5032                         } else {
5033                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5034                         }
5035
5036                         if (events->sctp_peer_error_event) {
5037                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5038                         } else {
5039                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5040                         }
5041
5042                         if (events->sctp_shutdown_event) {
5043                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5044                         } else {
5045                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5046                         }
5047
5048                         if (events->sctp_partial_delivery_event) {
5049                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5050                         } else {
5051                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5052                         }
5053
5054                         if (events->sctp_adaptation_layer_event) {
5055                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5056                         } else {
5057                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5058                         }
5059
5060                         if (events->sctp_authentication_event) {
5061                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5062                         } else {
5063                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5064                         }
5065
5066                         if (events->sctp_sender_dry_event) {
5067                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5068                         } else {
5069                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5070                         }
5071
5072                         if (events->sctp_stream_reset_event) {
5073                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5074                         } else {
5075                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5076                         }
5077                         SCTP_INP_WUNLOCK(inp);
5078
5079                         SCTP_INP_RLOCK(inp);
5080                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5081                                 SCTP_TCB_LOCK(stcb);
5082                                 if (events->sctp_association_event) {
5083                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5084                                 } else {
5085                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5086                                 }
5087                                 if (events->sctp_address_event) {
5088                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5089                                 } else {
5090                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5091                                 }
5092                                 if (events->sctp_send_failure_event) {
5093                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5094                                 } else {
5095                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5096                                 }
5097                                 if (events->sctp_peer_error_event) {
5098                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5099                                 } else {
5100                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5101                                 }
5102                                 if (events->sctp_shutdown_event) {
5103                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5104                                 } else {
5105                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5106                                 }
5107                                 if (events->sctp_partial_delivery_event) {
5108                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5109                                 } else {
5110                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5111                                 }
5112                                 if (events->sctp_adaptation_layer_event) {
5113                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5114                                 } else {
5115                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5116                                 }
5117                                 if (events->sctp_authentication_event) {
5118                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5119                                 } else {
5120                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5121                                 }
5122                                 if (events->sctp_sender_dry_event) {
5123                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5124                                 } else {
5125                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5126                                 }
5127                                 if (events->sctp_stream_reset_event) {
5128                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5129                                 } else {
5130                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5131                                 }
5132                                 SCTP_TCB_UNLOCK(stcb);
5133                         }
5134                         /*
5135                          * Send up the sender dry event only for 1-to-1
5136                          * style sockets.
5137                          */
5138                         if (events->sctp_sender_dry_event) {
5139                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5140                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5141                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5142                                         if (stcb) {
5143                                                 SCTP_TCB_LOCK(stcb);
5144                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5145                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5146                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5147                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5148                                                 }
5149                                                 SCTP_TCB_UNLOCK(stcb);
5150                                         }
5151                                 }
5152                         }
5153                         SCTP_INP_RUNLOCK(inp);
5154                         break;
5155                 }
5156         case SCTP_ADAPTATION_LAYER:
5157                 {
5158                         struct sctp_setadaptation *adap_bits;
5159
5160                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5161                         SCTP_INP_WLOCK(inp);
5162                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5163                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5164                         SCTP_INP_WUNLOCK(inp);
5165                         break;
5166                 }
5167 #ifdef SCTP_DEBUG
5168         case SCTP_SET_INITIAL_DBG_SEQ:
5169                 {
5170                         uint32_t *vvv;
5171
5172                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5173                         SCTP_INP_WLOCK(inp);
5174                         inp->sctp_ep.initial_sequence_debug = *vvv;
5175                         SCTP_INP_WUNLOCK(inp);
5176                         break;
5177                 }
5178 #endif
5179         case SCTP_DEFAULT_SEND_PARAM:
5180                 {
5181                         struct sctp_sndrcvinfo *s_info;
5182
5183                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5184                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5185
5186                         if (stcb) {
5187                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5188                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5189                                 } else {
5190                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5191                                         error = EINVAL;
5192                                 }
5193                                 SCTP_TCB_UNLOCK(stcb);
5194                         } else {
5195                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5196                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5197                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5198                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5199                                         SCTP_INP_WLOCK(inp);
5200                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5201                                         SCTP_INP_WUNLOCK(inp);
5202                                 }
5203                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5204                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5205                                         SCTP_INP_RLOCK(inp);
5206                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5207                                                 SCTP_TCB_LOCK(stcb);
5208                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5209                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5210                                                 }
5211                                                 SCTP_TCB_UNLOCK(stcb);
5212                                         }
5213                                         SCTP_INP_RUNLOCK(inp);
5214                                 }
5215                         }
5216                         break;
5217                 }
5218         case SCTP_PEER_ADDR_PARAMS:
5219                 {
5220                         struct sctp_paddrparams *paddrp;
5221                         struct sctp_nets *net;
5222                         struct sockaddr *addr;
5223 #if defined(INET) && defined(INET6)
5224                         struct sockaddr_in sin_store;
5225 #endif
5226
5227                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5228                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5229
5230 #if defined(INET) && defined(INET6)
5231                         if (paddrp->spp_address.ss_family == AF_INET6) {
5232                                 struct sockaddr_in6 *sin6;
5233
5234                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5235                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5236                                         in6_sin6_2_sin(&sin_store, sin6);
5237                                         addr = (struct sockaddr *)&sin_store;
5238                                 } else {
5239                                         addr = (struct sockaddr *)&paddrp->spp_address;
5240                                 }
5241                         } else {
5242                                 addr = (struct sockaddr *)&paddrp->spp_address;
5243                         }
5244 #else
5245                         addr = (struct sockaddr *)&paddrp->spp_address;
5246 #endif
5247                         if (stcb != NULL) {
5248                                 net = sctp_findnet(stcb, addr);
5249                         } else {
5250                                 /*
5251                                  * We increment here since
5252                                  * sctp_findassociation_ep_addr() wil do a
5253                                  * decrement if it finds the stcb as long as
5254                                  * the locked tcb (last argument) is NOT a
5255                                  * TCB.. aka NULL.
5256                                  */
5257                                 net = NULL;
5258                                 SCTP_INP_INCR_REF(inp);
5259                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5260                                     &net, NULL, NULL);
5261                                 if (stcb == NULL) {
5262                                         SCTP_INP_DECR_REF(inp);
5263                                 }
5264                         }
5265                         if ((stcb != NULL) && (net == NULL)) {
5266 #ifdef INET
5267                                 if (addr->sa_family == AF_INET) {
5268
5269                                         struct sockaddr_in *sin;
5270
5271                                         sin = (struct sockaddr_in *)addr;
5272                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5273                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5274                                                 SCTP_TCB_UNLOCK(stcb);
5275                                                 error = EINVAL;
5276                                                 break;
5277                                         }
5278                                 } else
5279 #endif
5280 #ifdef INET6
5281                                 if (addr->sa_family == AF_INET6) {
5282                                         struct sockaddr_in6 *sin6;
5283
5284                                         sin6 = (struct sockaddr_in6 *)addr;
5285                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5286                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5287                                                 SCTP_TCB_UNLOCK(stcb);
5288                                                 error = EINVAL;
5289                                                 break;
5290                                         }
5291                                 } else
5292 #endif
5293                                 {
5294                                         error = EAFNOSUPPORT;
5295                                         SCTP_TCB_UNLOCK(stcb);
5296                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5297                                         break;
5298                                 }
5299                         }
5300                         /* sanity checks */
5301                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5302                                 if (stcb)
5303                                         SCTP_TCB_UNLOCK(stcb);
5304                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5305                                 return (EINVAL);
5306                         }
5307
5308                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5309                                 if (stcb)
5310                                         SCTP_TCB_UNLOCK(stcb);
5311                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5312                                 return (EINVAL);
5313                         }
5314
5315                         if (stcb != NULL) {
5316                                 /************************TCB SPECIFIC SET ******************/
5317                                 if (net != NULL) {
5318                                         /************************NET SPECIFIC SET ******************/
5319                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5320                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5321                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5322                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5323                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5324                                                 }
5325                                                 net->dest_state |= SCTP_ADDR_NOHB;
5326                                         }
5327                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5328                                                 if (paddrp->spp_hbinterval) {
5329                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5330                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5331                                                         net->heart_beat_delay = 0;
5332                                                 }
5333                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5334                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5335                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5336                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5337                                         }
5338                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5339                                                 /* on demand HB */
5340                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5341                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5342                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5343                                         }
5344                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5345                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5346                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5347                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5348                                                 }
5349                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5350                                                 net->mtu = paddrp->spp_pathmtu;
5351                                                 switch (net->ro._l_addr.sa.sa_family) {
5352 #ifdef INET
5353                                                 case AF_INET:
5354                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5355                                                         break;
5356 #endif
5357 #ifdef INET6
5358                                                 case AF_INET6:
5359                                                         net->mtu += SCTP_MIN_OVERHEAD;
5360                                                         break;
5361 #endif
5362                                                 default:
5363                                                         break;
5364                                                 }
5365                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5366                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5367                                                 }
5368                                         }
5369                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5370                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5371                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5372                                                 }
5373                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5374                                         }
5375                                         if (paddrp->spp_pathmaxrxt) {
5376                                                 if (net->dest_state & SCTP_ADDR_PF) {
5377                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5378                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5379                                                         }
5380                                                 } else {
5381                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5382                                                             (net->error_count > net->pf_threshold)) {
5383                                                                 net->dest_state |= SCTP_ADDR_PF;
5384                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5385                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5386                                                                     stcb->sctp_ep, stcb, net,
5387                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5388                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5389                                                         }
5390                                                 }
5391                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5392                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5393                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5394                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5395                                                         }
5396                                                 } else {
5397                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5398                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5399                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5400                                                         }
5401                                                 }
5402                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5403                                         }
5404                                         if (paddrp->spp_flags & SPP_DSCP) {
5405                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5406                                                 net->dscp |= 0x01;
5407                                         }
5408 #ifdef INET6
5409                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5410                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5411                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5412                                                         net->flowlabel |= 0x80000000;
5413                                                 }
5414                                         }
5415 #endif
5416                                 } else {
5417                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5418                                         if (paddrp->spp_pathmaxrxt != 0) {
5419                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5420                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5421                                                         if (net->dest_state & SCTP_ADDR_PF) {
5422                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5423                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5424                                                                 }
5425                                                         } else {
5426                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5427                                                                     (net->error_count > net->pf_threshold)) {
5428                                                                         net->dest_state |= SCTP_ADDR_PF;
5429                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5430                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5431                                                                             stcb->sctp_ep, stcb, net,
5432                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5433                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5434                                                                 }
5435                                                         }
5436                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5437                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5438                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5439                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5440                                                                 }
5441                                                         } else {
5442                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5443                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5444                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5445                                                                 }
5446                                                         }
5447                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5448                                                 }
5449                                         }
5450
5451                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5452                                                 if (paddrp->spp_hbinterval != 0) {
5453                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5454                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5455                                                         stcb->asoc.heart_beat_delay = 0;
5456                                                 }
5457                                                 /* Turn back on the timer */
5458                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5459                                                         if (paddrp->spp_hbinterval != 0) {
5460                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5461                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5462                                                                 net->heart_beat_delay = 0;
5463                                                         }
5464                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5465                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5466                                                         }
5467                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5468                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5469                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5470                                                 }
5471                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5472                                         }
5473                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5474                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5475                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5476                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5477                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5478                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5479                                                                             inp, stcb, net,
5480                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5481                                                                 }
5482                                                         }
5483                                                 }
5484                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5485                                         }
5486                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5487                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5488                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5489                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5490                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5491                                                         }
5492                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5493                                                         net->mtu = paddrp->spp_pathmtu;
5494                                                         switch (net->ro._l_addr.sa.sa_family) {
5495 #ifdef INET
5496                                                         case AF_INET:
5497                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5498                                                                 break;
5499 #endif
5500 #ifdef INET6
5501                                                         case AF_INET6:
5502                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5503                                                                 break;
5504 #endif
5505                                                         default:
5506                                                                 break;
5507                                                         }
5508                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5509                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5510                                                         }
5511                                                 }
5512                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5513                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5514                                         }
5515                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5516                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5517                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5518                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5519                                                         }
5520                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5521                                                 }
5522                                                 stcb->asoc.default_mtu = 0;
5523                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5524                                         }
5525                                         if (paddrp->spp_flags & SPP_DSCP) {
5526                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5527                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5528                                                         net->dscp |= 0x01;
5529                                                 }
5530                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5531                                                 stcb->asoc.default_dscp |= 0x01;
5532                                         }
5533 #ifdef INET6
5534                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5535                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5536                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5537                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5538                                                                 net->flowlabel |= 0x80000000;
5539                                                         }
5540                                                 }
5541                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5542                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5543                                         }
5544 #endif
5545                                 }
5546                                 SCTP_TCB_UNLOCK(stcb);
5547                         } else {
5548                                 /************************NO TCB, SET TO default stuff ******************/
5549                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5550                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5551                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5552                                         SCTP_INP_WLOCK(inp);
5553                                         /*
5554                                          * For the TOS/FLOWLABEL stuff you
5555                                          * set it with the options on the
5556                                          * socket
5557                                          */
5558                                         if (paddrp->spp_pathmaxrxt != 0) {
5559                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5560                                         }
5561
5562                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5563                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5564                                         else if (paddrp->spp_hbinterval != 0) {
5565                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5566                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5567                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5568                                         }
5569
5570                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5571                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5572                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5573                                                 } else if (paddrp->spp_hbinterval) {
5574                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5575                                                 }
5576                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5577                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5578                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5579                                         }
5580                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5581                                                 inp->sctp_ep.default_mtu = 0;
5582                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5583                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5584                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
5585                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5586                                                 }
5587                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5588                                         }
5589                                         if (paddrp->spp_flags & SPP_DSCP) {
5590                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5591                                                 inp->sctp_ep.default_dscp |= 0x01;
5592                                         }
5593 #ifdef INET6
5594                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5595                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5596                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5597                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5598                                                 }
5599                                         }
5600 #endif
5601                                         SCTP_INP_WUNLOCK(inp);
5602                                 } else {
5603                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5604                                         error = EINVAL;
5605                                 }
5606                         }
5607                         break;
5608                 }
5609         case SCTP_RTOINFO:
5610                 {
5611                         struct sctp_rtoinfo *srto;
5612                         uint32_t new_init, new_min, new_max;
5613
5614                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5615                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5616
5617                         if (stcb) {
5618                                 if (srto->srto_initial)
5619                                         new_init = srto->srto_initial;
5620                                 else
5621                                         new_init = stcb->asoc.initial_rto;
5622                                 if (srto->srto_max)
5623                                         new_max = srto->srto_max;
5624                                 else
5625                                         new_max = stcb->asoc.maxrto;
5626                                 if (srto->srto_min)
5627                                         new_min = srto->srto_min;
5628                                 else
5629                                         new_min = stcb->asoc.minrto;
5630                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5631                                         stcb->asoc.initial_rto = new_init;
5632                                         stcb->asoc.maxrto = new_max;
5633                                         stcb->asoc.minrto = new_min;
5634                                 } else {
5635                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5636                                         error = EINVAL;
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                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5643                                         SCTP_INP_WLOCK(inp);
5644                                         if (srto->srto_initial)
5645                                                 new_init = srto->srto_initial;
5646                                         else
5647                                                 new_init = inp->sctp_ep.initial_rto;
5648                                         if (srto->srto_max)
5649                                                 new_max = srto->srto_max;
5650                                         else
5651                                                 new_max = inp->sctp_ep.sctp_maxrto;
5652                                         if (srto->srto_min)
5653                                                 new_min = srto->srto_min;
5654                                         else
5655                                                 new_min = inp->sctp_ep.sctp_minrto;
5656                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5657                                                 inp->sctp_ep.initial_rto = new_init;
5658                                                 inp->sctp_ep.sctp_maxrto = new_max;
5659                                                 inp->sctp_ep.sctp_minrto = new_min;
5660                                         } else {
5661                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5662                                                 error = EINVAL;
5663                                         }
5664                                         SCTP_INP_WUNLOCK(inp);
5665                                 } else {
5666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5667                                         error = EINVAL;
5668                                 }
5669                         }
5670                         break;
5671                 }
5672         case SCTP_ASSOCINFO:
5673                 {
5674                         struct sctp_assocparams *sasoc;
5675
5676                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5677                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5678                         if (sasoc->sasoc_cookie_life) {
5679                                 /* boundary check the cookie life */
5680                                 if (sasoc->sasoc_cookie_life < 1000)
5681                                         sasoc->sasoc_cookie_life = 1000;
5682                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5683                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5684                                 }
5685                         }
5686                         if (stcb) {
5687                                 if (sasoc->sasoc_asocmaxrxt)
5688                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5689                                 if (sasoc->sasoc_cookie_life) {
5690                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5691                                 }
5692                                 SCTP_TCB_UNLOCK(stcb);
5693                         } else {
5694                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5695                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5696                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5697                                         SCTP_INP_WLOCK(inp);
5698                                         if (sasoc->sasoc_asocmaxrxt)
5699                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5700                                         if (sasoc->sasoc_cookie_life) {
5701                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5702                                         }
5703                                         SCTP_INP_WUNLOCK(inp);
5704                                 } else {
5705                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5706                                         error = EINVAL;
5707                                 }
5708                         }
5709                         break;
5710                 }
5711         case SCTP_INITMSG:
5712                 {
5713                         struct sctp_initmsg *sinit;
5714
5715                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5716                         SCTP_INP_WLOCK(inp);
5717                         if (sinit->sinit_num_ostreams)
5718                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5719
5720                         if (sinit->sinit_max_instreams)
5721                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5722
5723                         if (sinit->sinit_max_attempts)
5724                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5725
5726                         if (sinit->sinit_max_init_timeo)
5727                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5728                         SCTP_INP_WUNLOCK(inp);
5729                         break;
5730                 }
5731         case SCTP_PRIMARY_ADDR:
5732                 {
5733                         struct sctp_setprim *spa;
5734                         struct sctp_nets *net;
5735                         struct sockaddr *addr;
5736 #if defined(INET) && defined(INET6)
5737                         struct sockaddr_in sin_store;
5738 #endif
5739
5740                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5741                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5742
5743 #if defined(INET) && defined(INET6)
5744                         if (spa->ssp_addr.ss_family == AF_INET6) {
5745                                 struct sockaddr_in6 *sin6;
5746
5747                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5748                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5749                                         in6_sin6_2_sin(&sin_store, sin6);
5750                                         addr = (struct sockaddr *)&sin_store;
5751                                 } else {
5752                                         addr = (struct sockaddr *)&spa->ssp_addr;
5753                                 }
5754                         } else {
5755                                 addr = (struct sockaddr *)&spa->ssp_addr;
5756                         }
5757 #else
5758                         addr = (struct sockaddr *)&spa->ssp_addr;
5759 #endif
5760                         if (stcb != NULL) {
5761                                 net = sctp_findnet(stcb, addr);
5762                         } else {
5763                                 /*
5764                                  * We increment here since
5765                                  * sctp_findassociation_ep_addr() wil do a
5766                                  * decrement if it finds the stcb as long as
5767                                  * the locked tcb (last argument) is NOT a
5768                                  * TCB.. aka NULL.
5769                                  */
5770                                 net = NULL;
5771                                 SCTP_INP_INCR_REF(inp);
5772                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5773                                     &net, NULL, NULL);
5774                                 if (stcb == NULL) {
5775                                         SCTP_INP_DECR_REF(inp);
5776                                 }
5777                         }
5778
5779                         if ((stcb != NULL) && (net != NULL)) {
5780                                 if (net != stcb->asoc.primary_destination) {
5781                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5782                                                 /* Ok we need to set it */
5783                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5784                                                         if ((stcb->asoc.alternate) &&
5785                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5786                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5787                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5788                                                                 stcb->asoc.alternate = NULL;
5789                                                         }
5790                                                 } else {
5791                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5792                                                         error = EINVAL;
5793                                                 }
5794                                         } else {
5795                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5796                                                 error = EINVAL;
5797                                         }
5798                                 }
5799                         } else {
5800                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5801                                 error = EINVAL;
5802                         }
5803                         if (stcb != NULL) {
5804                                 SCTP_TCB_UNLOCK(stcb);
5805                         }
5806                         break;
5807                 }
5808         case SCTP_SET_DYNAMIC_PRIMARY:
5809                 {
5810                         union sctp_sockstore *ss;
5811
5812                         error = priv_check(curthread,
5813                             PRIV_NETINET_RESERVEDPORT);
5814                         if (error)
5815                                 break;
5816
5817                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5818                         /* SUPER USER CHECK? */
5819                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5820                         break;
5821                 }
5822         case SCTP_SET_PEER_PRIMARY_ADDR:
5823                 {
5824                         struct sctp_setpeerprim *sspp;
5825                         struct sockaddr *addr;
5826 #if defined(INET) && defined(INET6)
5827                         struct sockaddr_in sin_store;
5828 #endif
5829
5830                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5831                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5832                         if (stcb != NULL) {
5833                                 struct sctp_ifa *ifa;
5834
5835 #if defined(INET) && defined(INET6)
5836                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5837                                         struct sockaddr_in6 *sin6;
5838
5839                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5840                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5841                                                 in6_sin6_2_sin(&sin_store, sin6);
5842                                                 addr = (struct sockaddr *)&sin_store;
5843                                         } else {
5844                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5845                                         }
5846                                 } else {
5847                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5848                                 }
5849 #else
5850                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5851 #endif
5852                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5853                                 if (ifa == NULL) {
5854                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5855                                         error = EINVAL;
5856                                         goto out_of_it;
5857                                 }
5858                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5859                                         /*
5860                                          * Must validate the ifa found is in
5861                                          * our ep
5862                                          */
5863                                         struct sctp_laddr *laddr;
5864                                         int found = 0;
5865
5866                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5867                                                 if (laddr->ifa == NULL) {
5868                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5869                                                             __func__);
5870                                                         continue;
5871                                                 }
5872                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5873                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5874                                                         continue;
5875                                                 }
5876                                                 if (laddr->ifa == ifa) {
5877                                                         found = 1;
5878                                                         break;
5879                                                 }
5880                                         }
5881                                         if (!found) {
5882                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5883                                                 error = EINVAL;
5884                                                 goto out_of_it;
5885                                         }
5886                                 } else {
5887                                         switch (addr->sa_family) {
5888 #ifdef INET
5889                                         case AF_INET:
5890                                                 {
5891                                                         struct sockaddr_in *sin;
5892
5893                                                         sin = (struct sockaddr_in *)addr;
5894                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5895                                                             &sin->sin_addr) != 0) {
5896                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5897                                                                 error = EINVAL;
5898                                                                 goto out_of_it;
5899                                                         }
5900                                                         break;
5901                                                 }
5902 #endif
5903 #ifdef INET6
5904                                         case AF_INET6:
5905                                                 {
5906                                                         struct sockaddr_in6 *sin6;
5907
5908                                                         sin6 = (struct sockaddr_in6 *)addr;
5909                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5910                                                             &sin6->sin6_addr) != 0) {
5911                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5912                                                                 error = EINVAL;
5913                                                                 goto out_of_it;
5914                                                         }
5915                                                         break;
5916                                                 }
5917 #endif
5918                                         default:
5919                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5920                                                 error = EINVAL;
5921                                                 goto out_of_it;
5922                                         }
5923                                 }
5924                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5926                                         error = EINVAL;
5927                                 }
5928                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5929                 out_of_it:
5930                                 SCTP_TCB_UNLOCK(stcb);
5931                         } else {
5932                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5933                                 error = EINVAL;
5934                         }
5935                         break;
5936                 }
5937         case SCTP_BINDX_ADD_ADDR:
5938                 {
5939                         struct sctp_getaddresses *addrs;
5940                         struct thread *td;
5941
5942                         td = (struct thread *)p;
5943                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5944                             optsize);
5945 #ifdef INET
5946                         if (addrs->addr->sa_family == AF_INET) {
5947                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5948                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5949                                         error = EINVAL;
5950                                         break;
5951                                 }
5952                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5953                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5954                                         break;
5955                                 }
5956                         } else
5957 #endif
5958 #ifdef INET6
5959                         if (addrs->addr->sa_family == AF_INET6) {
5960                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5961                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5962                                         error = EINVAL;
5963                                         break;
5964                                 }
5965                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5966                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5967                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5968                                         break;
5969                                 }
5970                         } else
5971 #endif
5972                         {
5973                                 error = EAFNOSUPPORT;
5974                                 break;
5975                         }
5976                         sctp_bindx_add_address(so, inp, addrs->addr,
5977                             addrs->sget_assoc_id, vrf_id,
5978                             &error, p);
5979                         break;
5980                 }
5981         case SCTP_BINDX_REM_ADDR:
5982                 {
5983                         struct sctp_getaddresses *addrs;
5984                         struct thread *td;
5985
5986                         td = (struct thread *)p;
5987
5988                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5989 #ifdef INET
5990                         if (addrs->addr->sa_family == AF_INET) {
5991                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5992                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5993                                         error = EINVAL;
5994                                         break;
5995                                 }
5996                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5997                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5998                                         break;
5999                                 }
6000                         } else
6001 #endif
6002 #ifdef INET6
6003                         if (addrs->addr->sa_family == AF_INET6) {
6004                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6005                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6006                                         error = EINVAL;
6007                                         break;
6008                                 }
6009                                 if (td != NULL &&
6010                                     (error = prison_local_ip6(td->td_ucred,
6011                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6012                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6013                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6014                                         break;
6015                                 }
6016                         } else
6017 #endif
6018                         {
6019                                 error = EAFNOSUPPORT;
6020                                 break;
6021                         }
6022                         sctp_bindx_delete_address(inp, addrs->addr,
6023                             addrs->sget_assoc_id, vrf_id,
6024                             &error);
6025                         break;
6026                 }
6027         case SCTP_EVENT:
6028                 {
6029                         struct sctp_event *event;
6030                         uint32_t event_type;
6031
6032                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6033                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6034                         switch (event->se_type) {
6035                         case SCTP_ASSOC_CHANGE:
6036                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6037                                 break;
6038                         case SCTP_PEER_ADDR_CHANGE:
6039                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6040                                 break;
6041                         case SCTP_REMOTE_ERROR:
6042                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6043                                 break;
6044                         case SCTP_SEND_FAILED:
6045                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6046                                 break;
6047                         case SCTP_SHUTDOWN_EVENT:
6048                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6049                                 break;
6050                         case SCTP_ADAPTATION_INDICATION:
6051                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6052                                 break;
6053                         case SCTP_PARTIAL_DELIVERY_EVENT:
6054                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6055                                 break;
6056                         case SCTP_AUTHENTICATION_EVENT:
6057                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6058                                 break;
6059                         case SCTP_STREAM_RESET_EVENT:
6060                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6061                                 break;
6062                         case SCTP_SENDER_DRY_EVENT:
6063                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6064                                 break;
6065                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6066                                 event_type = 0;
6067                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6068                                 error = ENOTSUP;
6069                                 break;
6070                         case SCTP_ASSOC_RESET_EVENT:
6071                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6072                                 break;
6073                         case SCTP_STREAM_CHANGE_EVENT:
6074                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6075                                 break;
6076                         case SCTP_SEND_FAILED_EVENT:
6077                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6078                                 break;
6079                         default:
6080                                 event_type = 0;
6081                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6082                                 error = EINVAL;
6083                                 break;
6084                         }
6085                         if (event_type > 0) {
6086                                 if (stcb) {
6087                                         if (event->se_on) {
6088                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6089                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6090                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6091                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6092                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6093                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6094                                                         }
6095                                                 }
6096                                         } else {
6097                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6098                                         }
6099                                         SCTP_TCB_UNLOCK(stcb);
6100                                 } else {
6101                                         /*
6102                                          * We don't want to send up a storm
6103                                          * of events, so return an error for
6104                                          * sender dry events
6105                                          */
6106                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6107                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6108                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6109                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6110                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6111                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6112                                                 error = ENOTSUP;
6113                                                 break;
6114                                         }
6115                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6116                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6117                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6118                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6119                                                 SCTP_INP_WLOCK(inp);
6120                                                 if (event->se_on) {
6121                                                         sctp_feature_on(inp, event_type);
6122                                                 } else {
6123                                                         sctp_feature_off(inp, event_type);
6124                                                 }
6125                                                 SCTP_INP_WUNLOCK(inp);
6126                                         }
6127                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6128                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6129                                                 SCTP_INP_RLOCK(inp);
6130                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6131                                                         SCTP_TCB_LOCK(stcb);
6132                                                         if (event->se_on) {
6133                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6134                                                         } else {
6135                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6136                                                         }
6137                                                         SCTP_TCB_UNLOCK(stcb);
6138                                                 }
6139                                                 SCTP_INP_RUNLOCK(inp);
6140                                         }
6141                                 }
6142                         } else {
6143                                 if (stcb) {
6144                                         SCTP_TCB_UNLOCK(stcb);
6145                                 }
6146                         }
6147                         break;
6148                 }
6149         case SCTP_RECVRCVINFO:
6150                 {
6151                         int *onoff;
6152
6153                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6154                         SCTP_INP_WLOCK(inp);
6155                         if (*onoff != 0) {
6156                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6157                         } else {
6158                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6159                         }
6160                         SCTP_INP_WUNLOCK(inp);
6161                         break;
6162                 }
6163         case SCTP_RECVNXTINFO:
6164                 {
6165                         int *onoff;
6166
6167                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6168                         SCTP_INP_WLOCK(inp);
6169                         if (*onoff != 0) {
6170                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6171                         } else {
6172                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6173                         }
6174                         SCTP_INP_WUNLOCK(inp);
6175                         break;
6176                 }
6177         case SCTP_DEFAULT_SNDINFO:
6178                 {
6179                         struct sctp_sndinfo *info;
6180                         uint16_t policy;
6181
6182                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6183                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6184
6185                         if (stcb) {
6186                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6187                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6188                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6189                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6190                                         stcb->asoc.def_send.sinfo_flags |= policy;
6191                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6192                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6193                                 } else {
6194                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6195                                         error = EINVAL;
6196                                 }
6197                                 SCTP_TCB_UNLOCK(stcb);
6198                         } else {
6199                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6200                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6201                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6202                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6203                                         SCTP_INP_WLOCK(inp);
6204                                         inp->def_send.sinfo_stream = info->snd_sid;
6205                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6206                                         inp->def_send.sinfo_flags = info->snd_flags;
6207                                         inp->def_send.sinfo_flags |= policy;
6208                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6209                                         inp->def_send.sinfo_context = info->snd_context;
6210                                         SCTP_INP_WUNLOCK(inp);
6211                                 }
6212                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6213                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6214                                         SCTP_INP_RLOCK(inp);
6215                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6216                                                 SCTP_TCB_LOCK(stcb);
6217                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6218                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6219                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6220                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6221                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6222                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6223                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6224                                                 }
6225                                                 SCTP_TCB_UNLOCK(stcb);
6226                                         }
6227                                         SCTP_INP_RUNLOCK(inp);
6228                                 }
6229                         }
6230                         break;
6231                 }
6232         case SCTP_DEFAULT_PRINFO:
6233                 {
6234                         struct sctp_default_prinfo *info;
6235
6236                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6237                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6238
6239                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6240                                 if (stcb) {
6241                                         SCTP_TCB_UNLOCK(stcb);
6242                                 }
6243                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6244                                 error = EINVAL;
6245                                 break;
6246                         }
6247                         if (stcb) {
6248                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6249                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6250                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6251                                 SCTP_TCB_UNLOCK(stcb);
6252                         } else {
6253                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6254                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6255                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6256                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6257                                         SCTP_INP_WLOCK(inp);
6258                                         inp->def_send.sinfo_flags &= 0xfff0;
6259                                         inp->def_send.sinfo_flags |= info->pr_policy;
6260                                         inp->def_send.sinfo_timetolive = info->pr_value;
6261                                         SCTP_INP_WUNLOCK(inp);
6262                                 }
6263                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6264                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6265                                         SCTP_INP_RLOCK(inp);
6266                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6267                                                 SCTP_TCB_LOCK(stcb);
6268                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6269                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6270                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6271                                                 SCTP_TCB_UNLOCK(stcb);
6272                                         }
6273                                         SCTP_INP_RUNLOCK(inp);
6274                                 }
6275                         }
6276                         break;
6277                 }
6278         case SCTP_PEER_ADDR_THLDS:
6279                 /* Applies to the specific association */
6280                 {
6281                         struct sctp_paddrthlds *thlds;
6282                         struct sctp_nets *net;
6283                         struct sockaddr *addr;
6284 #if defined(INET) && defined(INET6)
6285                         struct sockaddr_in sin_store;
6286 #endif
6287
6288                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6289                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6290
6291 #if defined(INET) && defined(INET6)
6292                         if (thlds->spt_address.ss_family == AF_INET6) {
6293                                 struct sockaddr_in6 *sin6;
6294
6295                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6296                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6297                                         in6_sin6_2_sin(&sin_store, sin6);
6298                                         addr = (struct sockaddr *)&sin_store;
6299                                 } else {
6300                                         addr = (struct sockaddr *)&thlds->spt_address;
6301                                 }
6302                         } else {
6303                                 addr = (struct sockaddr *)&thlds->spt_address;
6304                         }
6305 #else
6306                         addr = (struct sockaddr *)&thlds->spt_address;
6307 #endif
6308                         if (stcb != NULL) {
6309                                 net = sctp_findnet(stcb, addr);
6310                         } else {
6311                                 /*
6312                                  * We increment here since
6313                                  * sctp_findassociation_ep_addr() wil do a
6314                                  * decrement if it finds the stcb as long as
6315                                  * the locked tcb (last argument) is NOT a
6316                                  * TCB.. aka NULL.
6317                                  */
6318                                 net = NULL;
6319                                 SCTP_INP_INCR_REF(inp);
6320                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6321                                     &net, NULL, NULL);
6322                                 if (stcb == NULL) {
6323                                         SCTP_INP_DECR_REF(inp);
6324                                 }
6325                         }
6326                         if ((stcb != NULL) && (net == NULL)) {
6327 #ifdef INET
6328                                 if (addr->sa_family == AF_INET) {
6329
6330                                         struct sockaddr_in *sin;
6331
6332                                         sin = (struct sockaddr_in *)addr;
6333                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6334                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6335                                                 SCTP_TCB_UNLOCK(stcb);
6336                                                 error = EINVAL;
6337                                                 break;
6338                                         }
6339                                 } else
6340 #endif
6341 #ifdef INET6
6342                                 if (addr->sa_family == AF_INET6) {
6343                                         struct sockaddr_in6 *sin6;
6344
6345                                         sin6 = (struct sockaddr_in6 *)addr;
6346                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6347                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6348                                                 SCTP_TCB_UNLOCK(stcb);
6349                                                 error = EINVAL;
6350                                                 break;
6351                                         }
6352                                 } else
6353 #endif
6354                                 {
6355                                         error = EAFNOSUPPORT;
6356                                         SCTP_TCB_UNLOCK(stcb);
6357                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6358                                         break;
6359                                 }
6360                         }
6361                         if (thlds->spt_pathcpthld != 0xffff) {
6362                                 if (stcb != NULL) {
6363                                         SCTP_TCB_UNLOCK(stcb);
6364                                 }
6365                                 error = EINVAL;
6366                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6367                                 break;
6368                         }
6369                         if (stcb != NULL) {
6370                                 if (net != NULL) {
6371                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6372                                         net->pf_threshold = thlds->spt_pathpfthld;
6373                                         if (net->dest_state & SCTP_ADDR_PF) {
6374                                                 if ((net->error_count > net->failure_threshold) ||
6375                                                     (net->error_count <= net->pf_threshold)) {
6376                                                         net->dest_state &= ~SCTP_ADDR_PF;
6377                                                 }
6378                                         } else {
6379                                                 if ((net->error_count > net->pf_threshold) &&
6380                                                     (net->error_count <= net->failure_threshold)) {
6381                                                         net->dest_state |= SCTP_ADDR_PF;
6382                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6383                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6384                                                             stcb->sctp_ep, stcb, net,
6385                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6386                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6387                                                 }
6388                                         }
6389                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6390                                                 if (net->error_count > net->failure_threshold) {
6391                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6392                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6393                                                 }
6394                                         } else {
6395                                                 if (net->error_count <= net->failure_threshold) {
6396                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6397                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6398                                                 }
6399                                         }
6400                                 } else {
6401                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6402                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6403                                                 net->pf_threshold = thlds->spt_pathpfthld;
6404                                                 if (net->dest_state & SCTP_ADDR_PF) {
6405                                                         if ((net->error_count > net->failure_threshold) ||
6406                                                             (net->error_count <= net->pf_threshold)) {
6407                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6408                                                         }
6409                                                 } else {
6410                                                         if ((net->error_count > net->pf_threshold) &&
6411                                                             (net->error_count <= net->failure_threshold)) {
6412                                                                 net->dest_state |= SCTP_ADDR_PF;
6413                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6414                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6415                                                                     stcb->sctp_ep, stcb, net,
6416                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6417                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6418                                                         }
6419                                                 }
6420                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6421                                                         if (net->error_count > net->failure_threshold) {
6422                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6423                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6424                                                         }
6425                                                 } else {
6426                                                         if (net->error_count <= net->failure_threshold) {
6427                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6428                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6429                                                         }
6430                                                 }
6431                                         }
6432                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6433                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6434                                 }
6435                                 SCTP_TCB_UNLOCK(stcb);
6436                         } else {
6437                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6438                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6439                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6440                                         SCTP_INP_WLOCK(inp);
6441                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6442                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6443                                         SCTP_INP_WUNLOCK(inp);
6444                                 } else {
6445                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6446                                         error = EINVAL;
6447                                 }
6448                         }
6449                         break;
6450                 }
6451         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6452                 {
6453                         struct sctp_udpencaps *encaps;
6454                         struct sctp_nets *net;
6455                         struct sockaddr *addr;
6456 #if defined(INET) && defined(INET6)
6457                         struct sockaddr_in sin_store;
6458 #endif
6459
6460                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6461                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6462
6463 #if defined(INET) && defined(INET6)
6464                         if (encaps->sue_address.ss_family == AF_INET6) {
6465                                 struct sockaddr_in6 *sin6;
6466
6467                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6468                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6469                                         in6_sin6_2_sin(&sin_store, sin6);
6470                                         addr = (struct sockaddr *)&sin_store;
6471                                 } else {
6472                                         addr = (struct sockaddr *)&encaps->sue_address;
6473                                 }
6474                         } else {
6475                                 addr = (struct sockaddr *)&encaps->sue_address;
6476                         }
6477 #else
6478                         addr = (struct sockaddr *)&encaps->sue_address;
6479 #endif
6480                         if (stcb != NULL) {
6481                                 net = sctp_findnet(stcb, addr);
6482                         } else {
6483                                 /*
6484                                  * We increment here since
6485                                  * sctp_findassociation_ep_addr() wil do a
6486                                  * decrement if it finds the stcb as long as
6487                                  * the locked tcb (last argument) is NOT a
6488                                  * TCB.. aka NULL.
6489                                  */
6490                                 net = NULL;
6491                                 SCTP_INP_INCR_REF(inp);
6492                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6493                                 if (stcb == NULL) {
6494                                         SCTP_INP_DECR_REF(inp);
6495                                 }
6496                         }
6497                         if ((stcb != NULL) && (net == NULL)) {
6498 #ifdef INET
6499                                 if (addr->sa_family == AF_INET) {
6500
6501                                         struct sockaddr_in *sin;
6502
6503                                         sin = (struct sockaddr_in *)addr;
6504                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6505                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6506                                                 SCTP_TCB_UNLOCK(stcb);
6507                                                 error = EINVAL;
6508                                                 break;
6509                                         }
6510                                 } else
6511 #endif
6512 #ifdef INET6
6513                                 if (addr->sa_family == AF_INET6) {
6514                                         struct sockaddr_in6 *sin6;
6515
6516                                         sin6 = (struct sockaddr_in6 *)addr;
6517                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6518                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6519                                                 SCTP_TCB_UNLOCK(stcb);
6520                                                 error = EINVAL;
6521                                                 break;
6522                                         }
6523                                 } else
6524 #endif
6525                                 {
6526                                         error = EAFNOSUPPORT;
6527                                         SCTP_TCB_UNLOCK(stcb);
6528                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6529                                         break;
6530                                 }
6531                         }
6532
6533                         if (stcb != NULL) {
6534                                 if (net != NULL) {
6535                                         net->port = encaps->sue_port;
6536                                 } else {
6537                                         stcb->asoc.port = encaps->sue_port;
6538                                 }
6539                                 SCTP_TCB_UNLOCK(stcb);
6540                         } else {
6541                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6542                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6543                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6544                                         SCTP_INP_WLOCK(inp);
6545                                         inp->sctp_ep.port = encaps->sue_port;
6546                                         SCTP_INP_WUNLOCK(inp);
6547                                 } else {
6548                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6549                                         error = EINVAL;
6550                                 }
6551                         }
6552                         break;
6553                 }
6554         case SCTP_ECN_SUPPORTED:
6555                 {
6556                         struct sctp_assoc_value *av;
6557
6558                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6559                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6560
6561                         if (stcb) {
6562                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6563                                 error = EINVAL;
6564                                 SCTP_TCB_UNLOCK(stcb);
6565                         } else {
6566                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6567                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6568                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6569                                         SCTP_INP_WLOCK(inp);
6570                                         if (av->assoc_value == 0) {
6571                                                 inp->ecn_supported = 0;
6572                                         } else {
6573                                                 inp->ecn_supported = 1;
6574                                         }
6575                                         SCTP_INP_WUNLOCK(inp);
6576                                 } else {
6577                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6578                                         error = EINVAL;
6579                                 }
6580                         }
6581                         break;
6582                 }
6583         case SCTP_PR_SUPPORTED:
6584                 {
6585                         struct sctp_assoc_value *av;
6586
6587                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6588                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6589
6590                         if (stcb) {
6591                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6592                                 error = EINVAL;
6593                                 SCTP_TCB_UNLOCK(stcb);
6594                         } else {
6595                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6596                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6597                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6598                                         SCTP_INP_WLOCK(inp);
6599                                         if (av->assoc_value == 0) {
6600                                                 inp->prsctp_supported = 0;
6601                                         } else {
6602                                                 inp->prsctp_supported = 1;
6603                                         }
6604                                         SCTP_INP_WUNLOCK(inp);
6605                                 } else {
6606                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6607                                         error = EINVAL;
6608                                 }
6609                         }
6610                         break;
6611                 }
6612         case SCTP_AUTH_SUPPORTED:
6613                 {
6614                         struct sctp_assoc_value *av;
6615
6616                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6617                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6618
6619                         if (stcb) {
6620                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6621                                 error = EINVAL;
6622                                 SCTP_TCB_UNLOCK(stcb);
6623                         } else {
6624                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6625                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6626                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6627                                         if ((av->assoc_value == 0) &&
6628                                             (inp->asconf_supported == 1)) {
6629                                                 /*
6630                                                  * AUTH is required for
6631                                                  * ASCONF
6632                                                  */
6633                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6634                                                 error = EINVAL;
6635                                         } else {
6636                                                 SCTP_INP_WLOCK(inp);
6637                                                 if (av->assoc_value == 0) {
6638                                                         inp->auth_supported = 0;
6639                                                 } else {
6640                                                         inp->auth_supported = 1;
6641                                                 }
6642                                                 SCTP_INP_WUNLOCK(inp);
6643                                         }
6644                                 } else {
6645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6646                                         error = EINVAL;
6647                                 }
6648                         }
6649                         break;
6650                 }
6651         case SCTP_ASCONF_SUPPORTED:
6652                 {
6653                         struct sctp_assoc_value *av;
6654
6655                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6656                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6657
6658                         if (stcb) {
6659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6660                                 error = EINVAL;
6661                                 SCTP_TCB_UNLOCK(stcb);
6662                         } else {
6663                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6664                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6665                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6666                                         if ((av->assoc_value != 0) &&
6667                                             (inp->auth_supported == 0)) {
6668                                                 /*
6669                                                  * AUTH is required for
6670                                                  * ASCONF
6671                                                  */
6672                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6673                                                 error = EINVAL;
6674                                         } else {
6675                                                 SCTP_INP_WLOCK(inp);
6676                                                 if (av->assoc_value == 0) {
6677                                                         inp->asconf_supported = 0;
6678                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6679                                                             inp->sctp_ep.local_auth_chunks);
6680                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6681                                                             inp->sctp_ep.local_auth_chunks);
6682                                                 } else {
6683                                                         inp->asconf_supported = 1;
6684                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6685                                                             inp->sctp_ep.local_auth_chunks);
6686                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6687                                                             inp->sctp_ep.local_auth_chunks);
6688                                                 }
6689                                                 SCTP_INP_WUNLOCK(inp);
6690                                         }
6691                                 } else {
6692                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6693                                         error = EINVAL;
6694                                 }
6695                         }
6696                         break;
6697                 }
6698         case SCTP_RECONFIG_SUPPORTED:
6699                 {
6700                         struct sctp_assoc_value *av;
6701
6702                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6703                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6704
6705                         if (stcb) {
6706                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6707                                 error = EINVAL;
6708                                 SCTP_TCB_UNLOCK(stcb);
6709                         } else {
6710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6712                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6713                                         SCTP_INP_WLOCK(inp);
6714                                         if (av->assoc_value == 0) {
6715                                                 inp->reconfig_supported = 0;
6716                                         } else {
6717                                                 inp->reconfig_supported = 1;
6718                                         }
6719                                         SCTP_INP_WUNLOCK(inp);
6720                                 } else {
6721                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6722                                         error = EINVAL;
6723                                 }
6724                         }
6725                         break;
6726                 }
6727         case SCTP_NRSACK_SUPPORTED:
6728                 {
6729                         struct sctp_assoc_value *av;
6730
6731                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6732                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6733
6734                         if (stcb) {
6735                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6736                                 error = EINVAL;
6737                                 SCTP_TCB_UNLOCK(stcb);
6738                         } else {
6739                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6740                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6741                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6742                                         SCTP_INP_WLOCK(inp);
6743                                         if (av->assoc_value == 0) {
6744                                                 inp->nrsack_supported = 0;
6745                                         } else {
6746                                                 inp->nrsack_supported = 1;
6747                                         }
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         case SCTP_PKTDROP_SUPPORTED:
6757                 {
6758                         struct sctp_assoc_value *av;
6759
6760                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6761                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6762
6763                         if (stcb) {
6764                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6765                                 error = EINVAL;
6766                                 SCTP_TCB_UNLOCK(stcb);
6767                         } else {
6768                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6769                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6770                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6771                                         SCTP_INP_WLOCK(inp);
6772                                         if (av->assoc_value == 0) {
6773                                                 inp->pktdrop_supported = 0;
6774                                         } else {
6775                                                 inp->pktdrop_supported = 1;
6776                                         }
6777                                         SCTP_INP_WUNLOCK(inp);
6778                                 } else {
6779                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6780                                         error = EINVAL;
6781                                 }
6782                         }
6783                         break;
6784                 }
6785         case SCTP_MAX_CWND:
6786                 {
6787                         struct sctp_assoc_value *av;
6788                         struct sctp_nets *net;
6789
6790                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6791                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6792
6793                         if (stcb) {
6794                                 stcb->asoc.max_cwnd = av->assoc_value;
6795                                 if (stcb->asoc.max_cwnd > 0) {
6796                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6797                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6798                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6799                                                         net->cwnd = stcb->asoc.max_cwnd;
6800                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6801                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6802                                                         }
6803                                                 }
6804                                         }
6805                                 }
6806                                 SCTP_TCB_UNLOCK(stcb);
6807                         } else {
6808                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6809                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6810                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6811                                         SCTP_INP_WLOCK(inp);
6812                                         inp->max_cwnd = av->assoc_value;
6813                                         SCTP_INP_WUNLOCK(inp);
6814                                 } else {
6815                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6816                                         error = EINVAL;
6817                                 }
6818                         }
6819                         break;
6820                 }
6821         default:
6822                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6823                 error = ENOPROTOOPT;
6824                 break;
6825         }                       /* end switch (opt) */
6826         return (error);
6827 }
6828
6829 int
6830 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6831 {
6832         void *optval = NULL;
6833         size_t optsize = 0;
6834         void *p;
6835         int error = 0;
6836         struct sctp_inpcb *inp;
6837
6838         if ((sopt->sopt_level == SOL_SOCKET) &&
6839             (sopt->sopt_name == SO_SETFIB)) {
6840                 inp = (struct sctp_inpcb *)so->so_pcb;
6841                 if (inp == NULL) {
6842                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6843                         return (EINVAL);
6844                 }
6845                 SCTP_INP_WLOCK(inp);
6846                 inp->fibnum = so->so_fibnum;
6847                 SCTP_INP_WUNLOCK(inp);
6848                 return (0);
6849         }
6850         if (sopt->sopt_level != IPPROTO_SCTP) {
6851                 /* wrong proto level... send back up to IP */
6852 #ifdef INET6
6853                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6854                         error = ip6_ctloutput(so, sopt);
6855 #endif                          /* INET6 */
6856 #if defined(INET) && defined(INET6)
6857                 else
6858 #endif
6859 #ifdef INET
6860                         error = ip_ctloutput(so, sopt);
6861 #endif
6862                 return (error);
6863         }
6864         optsize = sopt->sopt_valsize;
6865         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6866                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6867                 return (ENOBUFS);
6868         }
6869         if (optsize) {
6870                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6871                 if (optval == NULL) {
6872                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6873                         return (ENOBUFS);
6874                 }
6875                 error = sooptcopyin(sopt, optval, optsize, optsize);
6876                 if (error) {
6877                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6878                         goto out;
6879                 }
6880         }
6881         p = (void *)sopt->sopt_td;
6882         if (sopt->sopt_dir == SOPT_SET) {
6883                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6884         } else if (sopt->sopt_dir == SOPT_GET) {
6885                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6886         } else {
6887                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6888                 error = EINVAL;
6889         }
6890         if ((error == 0) && (optval != NULL)) {
6891                 error = sooptcopyout(sopt, optval, optsize);
6892                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6893         } else if (optval != NULL) {
6894                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6895         }
6896 out:
6897         return (error);
6898 }
6899
6900 #ifdef INET
6901 static int
6902 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6903 {
6904         int error = 0;
6905         int create_lock_on = 0;
6906         uint32_t vrf_id;
6907         struct sctp_inpcb *inp;
6908         struct sctp_tcb *stcb = NULL;
6909
6910         inp = (struct sctp_inpcb *)so->so_pcb;
6911         if (inp == NULL) {
6912                 /* I made the same as TCP since we are not setup? */
6913                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6914                 return (ECONNRESET);
6915         }
6916         if (addr == NULL) {
6917                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6918                 return EINVAL;
6919         }
6920
6921         switch (addr->sa_family) {
6922 #ifdef INET6
6923         case AF_INET6:
6924                 {
6925                         struct sockaddr_in6 *sin6p;
6926
6927                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6929                                 return (EINVAL);
6930                         }
6931                         sin6p = (struct sockaddr_in6 *)addr;
6932                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6933                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6934                                 return (error);
6935                         }
6936                         break;
6937                 }
6938 #endif
6939 #ifdef INET
6940         case AF_INET:
6941                 {
6942                         struct sockaddr_in *sinp;
6943
6944                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6945                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6946                                 return (EINVAL);
6947                         }
6948                         sinp = (struct sockaddr_in *)addr;
6949                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6950                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6951                                 return (error);
6952                         }
6953                         break;
6954                 }
6955 #endif
6956         default:
6957                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6958                 return (EAFNOSUPPORT);
6959         }
6960         SCTP_INP_INCR_REF(inp);
6961         SCTP_ASOC_CREATE_LOCK(inp);
6962         create_lock_on = 1;
6963
6964
6965         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6966             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6967                 /* Should I really unlock ? */
6968                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6969                 error = EFAULT;
6970                 goto out_now;
6971         }
6972 #ifdef INET6
6973         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6974             (addr->sa_family == AF_INET6)) {
6975                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6976                 error = EINVAL;
6977                 goto out_now;
6978         }
6979 #endif
6980         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6981             SCTP_PCB_FLAGS_UNBOUND) {
6982                 /* Bind a ephemeral port */
6983                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6984                 if (error) {
6985                         goto out_now;
6986                 }
6987         }
6988         /* Now do we connect? */
6989         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6990             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6991                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6992                 error = EINVAL;
6993                 goto out_now;
6994         }
6995         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6996             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6997                 /* We are already connected AND the TCP model */
6998                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6999                 error = EADDRINUSE;
7000                 goto out_now;
7001         }
7002         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7003                 SCTP_INP_RLOCK(inp);
7004                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7005                 SCTP_INP_RUNLOCK(inp);
7006         } else {
7007                 /*
7008                  * We increment here since sctp_findassociation_ep_addr()
7009                  * will do a decrement if it finds the stcb as long as the
7010                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7011                  */
7012                 SCTP_INP_INCR_REF(inp);
7013                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7014                 if (stcb == NULL) {
7015                         SCTP_INP_DECR_REF(inp);
7016                 } else {
7017                         SCTP_TCB_UNLOCK(stcb);
7018                 }
7019         }
7020         if (stcb != NULL) {
7021                 /* Already have or am bring up an association */
7022                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7023                 error = EALREADY;
7024                 goto out_now;
7025         }
7026
7027         vrf_id = inp->def_vrf_id;
7028         /* We are GOOD to go */
7029         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7030             inp->sctp_ep.pre_open_stream_count,
7031             inp->sctp_ep.port, p);
7032         if (stcb == NULL) {
7033                 /* Gak! no memory */
7034                 goto out_now;
7035         }
7036         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7037                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7038                 /* Set the connected flag so we can queue data */
7039                 soisconnecting(so);
7040         }
7041         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7042         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7043
7044         /* initialize authentication parameters for the assoc */
7045         sctp_initialize_auth_params(inp, stcb);
7046
7047         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7048         SCTP_TCB_UNLOCK(stcb);
7049 out_now:
7050         if (create_lock_on) {
7051                 SCTP_ASOC_CREATE_UNLOCK(inp);
7052         }
7053
7054         SCTP_INP_DECR_REF(inp);
7055         return (error);
7056 }
7057 #endif
7058
7059 int
7060 sctp_listen(struct socket *so, int backlog, struct thread *p)
7061 {
7062         /*
7063          * Note this module depends on the protocol processing being called
7064          * AFTER any socket level flags and backlog are applied to the
7065          * socket. The traditional way that the socket flags are applied is
7066          * AFTER protocol processing. We have made a change to the
7067          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7068          * place if the socket API for SCTP is to work properly.
7069          */
7070
7071         int error = 0;
7072         struct sctp_inpcb *inp;
7073
7074         inp = (struct sctp_inpcb *)so->so_pcb;
7075         if (inp == NULL) {
7076                 /* I made the same as TCP since we are not setup? */
7077                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7078                 return (ECONNRESET);
7079         }
7080         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7081                 /* See if we have a listener */
7082                 struct sctp_inpcb *tinp;
7083                 union sctp_sockstore store;
7084
7085                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7086                         /* not bound all */
7087                         struct sctp_laddr *laddr;
7088
7089                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7090                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7091                                 switch (store.sa.sa_family) {
7092 #ifdef INET
7093                                 case AF_INET:
7094                                         store.sin.sin_port = inp->sctp_lport;
7095                                         break;
7096 #endif
7097 #ifdef INET6
7098                                 case AF_INET6:
7099                                         store.sin6.sin6_port = inp->sctp_lport;
7100                                         break;
7101 #endif
7102                                 default:
7103                                         break;
7104                                 }
7105                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7106                                 if (tinp && (tinp != inp) &&
7107                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7108                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7109                                     (SCTP_IS_LISTENING(tinp))) {
7110                                         /*
7111                                          * we have a listener already and
7112                                          * its not this inp.
7113                                          */
7114                                         SCTP_INP_DECR_REF(tinp);
7115                                         return (EADDRINUSE);
7116                                 } else if (tinp) {
7117                                         SCTP_INP_DECR_REF(tinp);
7118                                 }
7119                         }
7120                 } else {
7121                         /* Setup a local addr bound all */
7122                         memset(&store, 0, sizeof(store));
7123 #ifdef INET6
7124                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7125                                 store.sa.sa_family = AF_INET6;
7126                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7127                         }
7128 #endif
7129 #ifdef INET
7130                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7131                                 store.sa.sa_family = AF_INET;
7132                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7133                         }
7134 #endif
7135                         switch (store.sa.sa_family) {
7136 #ifdef INET
7137                         case AF_INET:
7138                                 store.sin.sin_port = inp->sctp_lport;
7139                                 break;
7140 #endif
7141 #ifdef INET6
7142                         case AF_INET6:
7143                                 store.sin6.sin6_port = inp->sctp_lport;
7144                                 break;
7145 #endif
7146                         default:
7147                                 break;
7148                         }
7149                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7150                         if (tinp && (tinp != inp) &&
7151                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7152                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7153                             (SCTP_IS_LISTENING(tinp))) {
7154                                 /*
7155                                  * we have a listener already and its not
7156                                  * this inp.
7157                                  */
7158                                 SCTP_INP_DECR_REF(tinp);
7159                                 return (EADDRINUSE);
7160                         } else if (tinp) {
7161                                 SCTP_INP_DECR_REF(tinp);
7162                         }
7163                 }
7164         }
7165         SCTP_INP_RLOCK(inp);
7166 #ifdef SCTP_LOCK_LOGGING
7167         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7168                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7169         }
7170 #endif
7171         SOCK_LOCK(so);
7172         error = solisten_proto_check(so);
7173         SOCK_UNLOCK(so);
7174         if (error) {
7175                 SCTP_INP_RUNLOCK(inp);
7176                 return (error);
7177         }
7178         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7179             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7180                 /*
7181                  * The unlucky case - We are in the tcp pool with this guy.
7182                  * - Someone else is in the main inp slot. - We must move
7183                  * this guy (the listener) to the main slot - We must then
7184                  * move the guy that was listener to the TCP Pool.
7185                  */
7186                 if (sctp_swap_inpcb_for_listen(inp)) {
7187                         SCTP_INP_RUNLOCK(inp);
7188                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7189                         return (EADDRINUSE);
7190                 }
7191         }
7192
7193         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7194             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7195                 /* We are already connected AND the TCP model */
7196                 SCTP_INP_RUNLOCK(inp);
7197                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7198                 return (EADDRINUSE);
7199         }
7200         SCTP_INP_RUNLOCK(inp);
7201         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7202                 /* We must do a bind. */
7203                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7204                         /* bind error, probably perm */
7205                         return (error);
7206                 }
7207         }
7208         SCTP_INP_WLOCK(inp);
7209         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7210                 SOCK_LOCK(so);
7211                 solisten_proto(so, backlog);
7212                 SOCK_UNLOCK(so);
7213         }
7214         if (backlog > 0) {
7215                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7216         } else {
7217                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7218         }
7219         SCTP_INP_WUNLOCK(inp);
7220         return (error);
7221 }
7222
7223 static int sctp_defered_wakeup_cnt = 0;
7224
7225 int
7226 sctp_accept(struct socket *so, struct sockaddr **addr)
7227 {
7228         struct sctp_tcb *stcb;
7229         struct sctp_inpcb *inp;
7230         union sctp_sockstore store;
7231 #ifdef INET6
7232         int error;
7233 #endif
7234         inp = (struct sctp_inpcb *)so->so_pcb;
7235
7236         if (inp == NULL) {
7237                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7238                 return (ECONNRESET);
7239         }
7240         SCTP_INP_RLOCK(inp);
7241         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7242                 SCTP_INP_RUNLOCK(inp);
7243                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7244                 return (EOPNOTSUPP);
7245         }
7246         if (so->so_state & SS_ISDISCONNECTED) {
7247                 SCTP_INP_RUNLOCK(inp);
7248                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7249                 return (ECONNABORTED);
7250         }
7251         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7252         if (stcb == NULL) {
7253                 SCTP_INP_RUNLOCK(inp);
7254                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7255                 return (ECONNRESET);
7256         }
7257         SCTP_TCB_LOCK(stcb);
7258         SCTP_INP_RUNLOCK(inp);
7259         store = stcb->asoc.primary_destination->ro._l_addr;
7260         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7261         SCTP_TCB_UNLOCK(stcb);
7262         switch (store.sa.sa_family) {
7263 #ifdef INET
7264         case AF_INET:
7265                 {
7266                         struct sockaddr_in *sin;
7267
7268                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7269                         if (sin == NULL)
7270                                 return (ENOMEM);
7271                         sin->sin_family = AF_INET;
7272                         sin->sin_len = sizeof(*sin);
7273                         sin->sin_port = store.sin.sin_port;
7274                         sin->sin_addr = store.sin.sin_addr;
7275                         *addr = (struct sockaddr *)sin;
7276                         break;
7277                 }
7278 #endif
7279 #ifdef INET6
7280         case AF_INET6:
7281                 {
7282                         struct sockaddr_in6 *sin6;
7283
7284                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7285                         if (sin6 == NULL)
7286                                 return (ENOMEM);
7287                         sin6->sin6_family = AF_INET6;
7288                         sin6->sin6_len = sizeof(*sin6);
7289                         sin6->sin6_port = store.sin6.sin6_port;
7290                         sin6->sin6_addr = store.sin6.sin6_addr;
7291                         if ((error = sa6_recoverscope(sin6)) != 0) {
7292                                 SCTP_FREE_SONAME(sin6);
7293                                 return (error);
7294                         }
7295                         *addr = (struct sockaddr *)sin6;
7296                         break;
7297                 }
7298 #endif
7299         default:
7300                 /* TSNH */
7301                 break;
7302         }
7303         /* Wake any delayed sleep action */
7304         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7305                 SCTP_INP_WLOCK(inp);
7306                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7307                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7308                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7309                         SCTP_INP_WUNLOCK(inp);
7310                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7311                         if (sowriteable(inp->sctp_socket)) {
7312                                 sowwakeup_locked(inp->sctp_socket);
7313                         } else {
7314                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7315                         }
7316                         SCTP_INP_WLOCK(inp);
7317                 }
7318                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7319                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7320                         SCTP_INP_WUNLOCK(inp);
7321                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7322                         if (soreadable(inp->sctp_socket)) {
7323                                 sctp_defered_wakeup_cnt++;
7324                                 sorwakeup_locked(inp->sctp_socket);
7325                         } else {
7326                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7327                         }
7328                         SCTP_INP_WLOCK(inp);
7329                 }
7330                 SCTP_INP_WUNLOCK(inp);
7331         }
7332         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7333                 SCTP_TCB_LOCK(stcb);
7334                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7335                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7336         }
7337         return (0);
7338 }
7339
7340 #ifdef INET
7341 int
7342 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7343 {
7344         struct sockaddr_in *sin;
7345         uint32_t vrf_id;
7346         struct sctp_inpcb *inp;
7347         struct sctp_ifa *sctp_ifa;
7348
7349         /*
7350          * Do the malloc first in case it blocks.
7351          */
7352         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7353         if (sin == NULL)
7354                 return (ENOMEM);
7355         sin->sin_family = AF_INET;
7356         sin->sin_len = sizeof(*sin);
7357         inp = (struct sctp_inpcb *)so->so_pcb;
7358         if (!inp) {
7359                 SCTP_FREE_SONAME(sin);
7360                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7361                 return (ECONNRESET);
7362         }
7363         SCTP_INP_RLOCK(inp);
7364         sin->sin_port = inp->sctp_lport;
7365         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7366                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7367                         struct sctp_tcb *stcb;
7368                         struct sockaddr_in *sin_a;
7369                         struct sctp_nets *net;
7370                         int fnd;
7371
7372                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7373                         if (stcb == NULL) {
7374                                 goto notConn;
7375                         }
7376                         fnd = 0;
7377                         sin_a = NULL;
7378                         SCTP_TCB_LOCK(stcb);
7379                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7380                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7381                                 if (sin_a == NULL)
7382                                         /* this will make coverity happy */
7383                                         continue;
7384
7385                                 if (sin_a->sin_family == AF_INET) {
7386                                         fnd = 1;
7387                                         break;
7388                                 }
7389                         }
7390                         if ((!fnd) || (sin_a == NULL)) {
7391                                 /* punt */
7392                                 SCTP_TCB_UNLOCK(stcb);
7393                                 goto notConn;
7394                         }
7395
7396                         vrf_id = inp->def_vrf_id;
7397                         sctp_ifa = sctp_source_address_selection(inp,
7398                             stcb,
7399                             (sctp_route_t *)&net->ro,
7400                             net, 0, vrf_id);
7401                         if (sctp_ifa) {
7402                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7403                                 sctp_free_ifa(sctp_ifa);
7404                         }
7405                         SCTP_TCB_UNLOCK(stcb);
7406                 } else {
7407                         /* For the bound all case you get back 0 */
7408         notConn:
7409                         sin->sin_addr.s_addr = 0;
7410                 }
7411
7412         } else {
7413                 /* Take the first IPv4 address in the list */
7414                 struct sctp_laddr *laddr;
7415                 int fnd = 0;
7416
7417                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7418                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7419                                 struct sockaddr_in *sin_a;
7420
7421                                 sin_a = &laddr->ifa->address.sin;
7422                                 sin->sin_addr = sin_a->sin_addr;
7423                                 fnd = 1;
7424                                 break;
7425                         }
7426                 }
7427                 if (!fnd) {
7428                         SCTP_FREE_SONAME(sin);
7429                         SCTP_INP_RUNLOCK(inp);
7430                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7431                         return (ENOENT);
7432                 }
7433         }
7434         SCTP_INP_RUNLOCK(inp);
7435         (*addr) = (struct sockaddr *)sin;
7436         return (0);
7437 }
7438
7439 int
7440 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7441 {
7442         struct sockaddr_in *sin;
7443         int fnd;
7444         struct sockaddr_in *sin_a;
7445         struct sctp_inpcb *inp;
7446         struct sctp_tcb *stcb;
7447         struct sctp_nets *net;
7448
7449         /* Do the malloc first in case it blocks. */
7450         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7451         if (sin == NULL)
7452                 return (ENOMEM);
7453         sin->sin_family = AF_INET;
7454         sin->sin_len = sizeof(*sin);
7455
7456         inp = (struct sctp_inpcb *)so->so_pcb;
7457         if ((inp == NULL) ||
7458             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7459                 /* UDP type and listeners will drop out here */
7460                 SCTP_FREE_SONAME(sin);
7461                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7462                 return (ENOTCONN);
7463         }
7464         SCTP_INP_RLOCK(inp);
7465         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7466         if (stcb) {
7467                 SCTP_TCB_LOCK(stcb);
7468         }
7469         SCTP_INP_RUNLOCK(inp);
7470         if (stcb == NULL) {
7471                 SCTP_FREE_SONAME(sin);
7472                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7473                 return (ECONNRESET);
7474         }
7475         fnd = 0;
7476         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7477                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7478                 if (sin_a->sin_family == AF_INET) {
7479                         fnd = 1;
7480                         sin->sin_port = stcb->rport;
7481                         sin->sin_addr = sin_a->sin_addr;
7482                         break;
7483                 }
7484         }
7485         SCTP_TCB_UNLOCK(stcb);
7486         if (!fnd) {
7487                 /* No IPv4 address */
7488                 SCTP_FREE_SONAME(sin);
7489                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7490                 return (ENOENT);
7491         }
7492         (*addr) = (struct sockaddr *)sin;
7493         return (0);
7494 }
7495
7496 struct pr_usrreqs sctp_usrreqs = {
7497         .pru_abort = sctp_abort,
7498         .pru_accept = sctp_accept,
7499         .pru_attach = sctp_attach,
7500         .pru_bind = sctp_bind,
7501         .pru_connect = sctp_connect,
7502         .pru_control = in_control,
7503         .pru_close = sctp_close,
7504         .pru_detach = sctp_close,
7505         .pru_sopoll = sopoll_generic,
7506         .pru_flush = sctp_flush,
7507         .pru_disconnect = sctp_disconnect,
7508         .pru_listen = sctp_listen,
7509         .pru_peeraddr = sctp_peeraddr,
7510         .pru_send = sctp_sendm,
7511         .pru_shutdown = sctp_shutdown,
7512         .pru_sockaddr = sctp_ingetaddr,
7513         .pru_sosend = sctp_sosend,
7514         .pru_soreceive = sctp_soreceive
7515 };
7516 #endif