sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern const struct sctp_cc_functions sctp_cc_functions[];
  58 extern const struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 #ifdef VIMAGE
  93 static void
  94 sctp_finish(void *unused __unused)
  95 {
  96         sctp_pcb_finish();
  97 }
  98 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
  99 #endif
 100
 101 void
 102 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 103 {
 104         struct sctp_tmit_chunk *chk;
 105         uint16_t overhead;
 106
 107         /* Adjust that too */
 108         stcb->asoc.smallest_mtu = nxtsz;
 109         /* now off to subtract IP_DF flag if needed */
 110         overhead = IP_HDR_SIZE;
 111         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 112                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 113         }
 114         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 115                 if ((chk->send_size + overhead) > nxtsz) {
 116                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 117                 }
 118         }
 119         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 120                 if ((chk->send_size + overhead) > nxtsz) {
 121                         /*
 122                          * For this guy we also mark for immediate resend
 123                          * since we sent to big of chunk
 124                          */
 125                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 126                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 127                                 sctp_flight_size_decrease(chk);
 128                                 sctp_total_flight_decrease(stcb, chk);
 129                                 chk->sent = SCTP_DATAGRAM_RESEND;
 130                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 131                                 chk->rec.data.doing_fast_retransmit = 0;
 132                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 133                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 134                                             chk->whoTo->flight_size,
 135                                             chk->book_size,
 136                                             (uint32_t) (uintptr_t) chk->whoTo,
 137                                             chk->rec.data.TSN_seq);
 138                                 }
 139                                 /* Clear any time so NO RTT is being done */
 140                                 chk->do_rtt = 0;
 141                         }
 142                 }
 143         }
 144 }
 145
 146 #ifdef INET
 147 void
 148 sctp_notify(struct sctp_inpcb *inp,
 149     struct sctp_tcb *stcb,
 150     struct sctp_nets *net,
 151     uint8_t icmp_type,
 152     uint8_t icmp_code,
 153     uint16_t ip_len,
 154     uint16_t next_mtu)
 155 {
 156 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 157         struct socket *so;
 158
 159 #endif
 160         int timer_stopped;
 161
 162         if (icmp_type != ICMP_UNREACH) {
 163                 /* We only care about unreachable */
 164                 SCTP_TCB_UNLOCK(stcb);
 165                 return;
 166         }
 167         if ((icmp_code == ICMP_UNREACH_NET) ||
 168             (icmp_code == ICMP_UNREACH_HOST) ||
 169             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 170             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 171             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 172             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 173             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 174             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 175                 /* Mark the net unreachable. */
 176                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 177                         /* OK, that destination is NOT reachable. */
 178                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 179                         net->dest_state &= ~SCTP_ADDR_PF;
 180                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 181                             stcb, 0,
 182                             (void *)net, SCTP_SO_NOT_LOCKED);
 183                 }
 184                 SCTP_TCB_UNLOCK(stcb);
 185         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 186             (icmp_code == ICMP_UNREACH_PORT)) {
 187                 /* Treat it like an ABORT. */
 188                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 189 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 190                 so = SCTP_INP_SO(inp);
 191                 atomic_add_int(&stcb->asoc.refcnt, 1);
 192                 SCTP_TCB_UNLOCK(stcb);
 193                 SCTP_SOCKET_LOCK(so, 1);
 194                 SCTP_TCB_LOCK(stcb);
 195                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 196 #endif
 197                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 199 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 200                 SCTP_SOCKET_UNLOCK(so, 1);
 201                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 202 #endif
 203                 /* no need to unlock here, since the TCB is gone */
 204         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 205                 /* Find the next (smaller) MTU */
 206                 if (next_mtu == 0) {
 207                         /*
 208                          * Old type router that does not tell us what the
 209                          * next MTU is. Rats we will have to guess (in a
 210                          * educated fashion of course).
 211                          */
 212                         next_mtu = sctp_get_prev_mtu(ip_len);
 213                 }
 214                 /* Stop the PMTU timer. */
 215                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 216                         timer_stopped = 1;
 217                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 218                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 219                 } else {
 220                         timer_stopped = 0;
 221                 }
 222                 /* Update the path MTU. */
 223                 if (net->mtu > next_mtu) {
 224                         net->mtu = next_mtu;
 225                         if (net->port) {
 226                                 net->mtu -= sizeof(struct udphdr);
 227                         }
 228                 }
 229                 /* Update the association MTU */
 230                 if (stcb->asoc.smallest_mtu > next_mtu) {
 231                         sctp_pathmtu_adjustment(stcb, next_mtu);
 232                 }
 233                 /* Finally, start the PMTU timer if it was running before. */
 234                 if (timer_stopped) {
 235                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 236                 }
 237                 SCTP_TCB_UNLOCK(stcb);
 238         } else {
 239                 SCTP_TCB_UNLOCK(stcb);
 240         }
 241 }
 242
 243 void
 244 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 245 {
 246         struct ip *outer_ip;
 247         struct ip *inner_ip;
 248         struct sctphdr *sh;
 249         struct icmp *icmp;
 250         struct sctp_inpcb *inp;
 251         struct sctp_tcb *stcb;
 252         struct sctp_nets *net;
 253         struct sctp_init_chunk *ch;
 254         struct sockaddr_in src, dst;
 255
 256         if (sa->sa_family != AF_INET ||
 257             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 258                 return;
 259         }
 260         if (PRC_IS_REDIRECT(cmd)) {
 261                 vip = NULL;
 262         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 263                 return;
 264         }
 265         if (vip != NULL) {
 266                 inner_ip = (struct ip *)vip;
 267                 icmp = (struct icmp *)((caddr_t)inner_ip -
 268                     (sizeof(struct icmp) - sizeof(struct ip)));
 269                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 270                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 271                 memset(&src, 0, sizeof(struct sockaddr_in));
 272                 src.sin_family = AF_INET;
 273                 src.sin_len = sizeof(struct sockaddr_in);
 274                 src.sin_port = sh->src_port;
 275                 src.sin_addr = inner_ip->ip_src;
 276                 memset(&dst, 0, sizeof(struct sockaddr_in));
 277                 dst.sin_family = AF_INET;
 278                 dst.sin_len = sizeof(struct sockaddr_in);
 279                 dst.sin_port = sh->dest_port;
 280                 dst.sin_addr = inner_ip->ip_dst;
 281                 /*
 282                  * 'dst' holds the dest of the packet that failed to be
 283                  * sent. 'src' holds our local endpoint address. Thus we
 284                  * reverse the dst and the src in the lookup.
 285                  */
 286                 inp = NULL;
 287                 net = NULL;
 288                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 289                     (struct sockaddr *)&src,
 290                     &inp, &net, 1,
 291                     SCTP_DEFAULT_VRFID);
 292                 if ((stcb != NULL) &&
 293                     (net != NULL) &&
 294                     (inp != NULL) &&
 295                     (inp->sctp_socket != NULL)) {
 296                         /* Check the verification tag */
 297                         if (ntohl(sh->v_tag) != 0) {
 298                                 /*
 299                                  * This must be the verification tag used
 300                                  * for sending out packets. We don't
 301                                  * consider packets reflecting the
 302                                  * verification tag.
 303                                  */
 304                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 305                                         SCTP_TCB_UNLOCK(stcb);
 306                                         return;
 307                                 }
 308                         } else {
 309                                 if (ntohs(outer_ip->ip_len) >=
 310                                     sizeof(struct ip) +
 311                                     8 + (inner_ip->ip_hl << 2) + 20) {
 312                                         /*
 313                                          * In this case we can check if we
 314                                          * got an INIT chunk and if the
 315                                          * initiate tag matches.
 316                                          */
 317                                         ch = (struct sctp_init_chunk *)(sh + 1);
 318                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 319                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 320                                                 SCTP_TCB_UNLOCK(stcb);
 321                                                 return;
 322                                         }
 323                                 } else {
 324                                         SCTP_TCB_UNLOCK(stcb);
 325                                         return;
 326                                 }
 327                         }
 328                         sctp_notify(inp, stcb, net,
 329                             icmp->icmp_type,
 330                             icmp->icmp_code,
 331                             ntohs(inner_ip->ip_len),
 332                             ntohs(icmp->icmp_nextmtu));
 333                 } else {
 334                         if ((stcb == NULL) && (inp != NULL)) {
 335                                 /* reduce ref-count */
 336                                 SCTP_INP_WLOCK(inp);
 337                                 SCTP_INP_DECR_REF(inp);
 338                                 SCTP_INP_WUNLOCK(inp);
 339                         }
 340                         if (stcb) {
 341                                 SCTP_TCB_UNLOCK(stcb);
 342                         }
 343                 }
 344         }
 345         return;
 346 }
 347
 348 #endif
 349
 350 static int
 351 sctp_getcred(SYSCTL_HANDLER_ARGS)
 352 {
 353         struct xucred xuc;
 354         struct sockaddr_in addrs[2];
 355         struct sctp_inpcb *inp;
 356         struct sctp_nets *net;
 357         struct sctp_tcb *stcb;
 358         int error;
 359         uint32_t vrf_id;
 360
 361         /* FIX, for non-bsd is this right? */
 362         vrf_id = SCTP_DEFAULT_VRFID;
 363
 364         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 365
 366         if (error)
 367                 return (error);
 368
 369         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 370         if (error)
 371                 return (error);
 372
 373         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 374             sintosa(&addrs[0]),
 375             &inp, &net, 1, vrf_id);
 376         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 377                 if ((inp != NULL) && (stcb == NULL)) {
 378                         /* reduce ref-count */
 379                         SCTP_INP_WLOCK(inp);
 380                         SCTP_INP_DECR_REF(inp);
 381                         goto cred_can_cont;
 382                 }
 383                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 384                 error = ENOENT;
 385                 goto out;
 386         }
 387         SCTP_TCB_UNLOCK(stcb);
 388         /*
 389          * We use the write lock here, only since in the error leg we need
 390          * it. If we used RLOCK, then we would have to
 391          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 392          * Better to use higher wlock.
 393          */
 394         SCTP_INP_WLOCK(inp);
 395 cred_can_cont:
 396         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 397         if (error) {
 398                 SCTP_INP_WUNLOCK(inp);
 399                 goto out;
 400         }
 401         cru2x(inp->sctp_socket->so_cred, &xuc);
 402         SCTP_INP_WUNLOCK(inp);
 403         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 404 out:
 405         return (error);
 406 }
 407
 408 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 409     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 410
 411
 412 #ifdef INET
 413 static void
 414 sctp_abort(struct socket *so)
 415 {
 416         struct sctp_inpcb *inp;
 417         uint32_t flags;
 418
 419         inp = (struct sctp_inpcb *)so->so_pcb;
 420         if (inp == NULL) {
 421                 return;
 422         }
 423 sctp_must_try_again:
 424         flags = inp->sctp_flags;
 425 #ifdef SCTP_LOG_CLOSING
 426         sctp_log_closing(inp, NULL, 17);
 427 #endif
 428         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 429             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 430 #ifdef SCTP_LOG_CLOSING
 431                 sctp_log_closing(inp, NULL, 16);
 432 #endif
 433                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 434                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 435                 SOCK_LOCK(so);
 436                 SCTP_SB_CLEAR(so->so_snd);
 437                 /*
 438                  * same for the rcv ones, they are only here for the
 439                  * accounting/select.
 440                  */
 441                 SCTP_SB_CLEAR(so->so_rcv);
 442
 443                 /* Now null out the reference, we are completely detached. */
 444                 so->so_pcb = NULL;
 445                 SOCK_UNLOCK(so);
 446         } else {
 447                 flags = inp->sctp_flags;
 448                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 449                         goto sctp_must_try_again;
 450                 }
 451         }
 452         return;
 453 }
 454
 455 static int
 456 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 457 {
 458         struct sctp_inpcb *inp;
 459         struct inpcb *ip_inp;
 460         int error;
 461         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 462
 463         inp = (struct sctp_inpcb *)so->so_pcb;
 464         if (inp != NULL) {
 465                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 466                 return (EINVAL);
 467         }
 468         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 469                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 470                 if (error) {
 471                         return (error);
 472                 }
 473         }
 474         error = sctp_inpcb_alloc(so, vrf_id);
 475         if (error) {
 476                 return (error);
 477         }
 478         inp = (struct sctp_inpcb *)so->so_pcb;
 479         SCTP_INP_WLOCK(inp);
 480         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 481         ip_inp = &inp->ip_inp.inp;
 482         ip_inp->inp_vflag |= INP_IPV4;
 483         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 484         SCTP_INP_WUNLOCK(inp);
 485         return (0);
 486 }
 487
 488 static int
 489 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 490 {
 491         struct sctp_inpcb *inp;
 492
 493         inp = (struct sctp_inpcb *)so->so_pcb;
 494         if (inp == NULL) {
 495                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 496                 return (EINVAL);
 497         }
 498         if (addr != NULL) {
 499                 if ((addr->sa_family != AF_INET) ||
 500                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 501                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 502                         return (EINVAL);
 503                 }
 504         }
 505         return (sctp_inpcb_bind(so, addr, NULL, p));
 506 }
 507
 508 #endif
 509 void
 510 sctp_close(struct socket *so)
 511 {
 512         struct sctp_inpcb *inp;
 513         uint32_t flags;
 514
 515         inp = (struct sctp_inpcb *)so->so_pcb;
 516         if (inp == NULL)
 517                 return;
 518
 519         /*
 520          * Inform all the lower layer assoc that we are done.
 521          */
 522 sctp_must_try_again:
 523         flags = inp->sctp_flags;
 524 #ifdef SCTP_LOG_CLOSING
 525         sctp_log_closing(inp, NULL, 17);
 526 #endif
 527         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 528             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 529                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 530                     (so->so_rcv.sb_cc > 0)) {
 531 #ifdef SCTP_LOG_CLOSING
 532                         sctp_log_closing(inp, NULL, 13);
 533 #endif
 534                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 535                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 536                 } else {
 537 #ifdef SCTP_LOG_CLOSING
 538                         sctp_log_closing(inp, NULL, 14);
 539 #endif
 540                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 541                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 542                 }
 543                 /*
 544                  * The socket is now detached, no matter what the state of
 545                  * the SCTP association.
 546                  */
 547                 SOCK_LOCK(so);
 548                 SCTP_SB_CLEAR(so->so_snd);
 549                 /*
 550                  * same for the rcv ones, they are only here for the
 551                  * accounting/select.
 552                  */
 553                 SCTP_SB_CLEAR(so->so_rcv);
 554
 555                 /* Now null out the reference, we are completely detached. */
 556                 so->so_pcb = NULL;
 557                 SOCK_UNLOCK(so);
 558         } else {
 559                 flags = inp->sctp_flags;
 560                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 561                         goto sctp_must_try_again;
 562                 }
 563         }
 564         return;
 565 }
 566
 567
 568 int
 569 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 570     struct mbuf *control, struct thread *p);
 571
 572
 573 int
 574 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 575     struct mbuf *control, struct thread *p)
 576 {
 577         struct sctp_inpcb *inp;
 578         int error;
 579
 580         inp = (struct sctp_inpcb *)so->so_pcb;
 581         if (inp == NULL) {
 582                 if (control) {
 583                         sctp_m_freem(control);
 584                         control = NULL;
 585                 }
 586                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 587                 sctp_m_freem(m);
 588                 return (EINVAL);
 589         }
 590         /* Got to have an to address if we are NOT a connected socket */
 591         if ((addr == NULL) &&
 592             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 593             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 594                 goto connected_type;
 595         } else if (addr == NULL) {
 596                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 597                 error = EDESTADDRREQ;
 598                 sctp_m_freem(m);
 599                 if (control) {
 600                         sctp_m_freem(control);
 601                         control = NULL;
 602                 }
 603                 return (error);
 604         }
 605 #ifdef INET6
 606         if (addr->sa_family != AF_INET) {
 607                 /* must be a v4 address! */
 608                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 609                 sctp_m_freem(m);
 610                 if (control) {
 611                         sctp_m_freem(control);
 612                         control = NULL;
 613                 }
 614                 error = EDESTADDRREQ;
 615                 return (error);
 616         }
 617 #endif                          /* INET6 */
 618 connected_type:
 619         /* now what about control */
 620         if (control) {
 621                 if (inp->control) {
 622                         SCTP_PRINTF("huh? control set?\n");
 623                         sctp_m_freem(inp->control);
 624                         inp->control = NULL;
 625                 }
 626                 inp->control = control;
 627         }
 628         /* Place the data */
 629         if (inp->pkt) {
 630                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 631                 inp->pkt_last = m;
 632         } else {
 633                 inp->pkt_last = inp->pkt = m;
 634         }
 635         if (
 636         /* FreeBSD uses a flag passed */
 637             ((flags & PRUS_MORETOCOME) == 0)
 638             ) {
 639                 /*
 640                  * note with the current version this code will only be used
 641                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 642                  * re-defining sosend to use the sctp_sosend. One can
 643                  * optionally switch back to this code (by changing back the
 644                  * definitions) but this is not advisable. This code is used
 645                  * by FreeBSD when sending a file with sendfile() though.
 646                  */
 647                 int ret;
 648
 649                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 650                 inp->pkt = NULL;
 651                 inp->control = NULL;
 652                 return (ret);
 653         } else {
 654                 return (0);
 655         }
 656 }
 657
 658 int
 659 sctp_disconnect(struct socket *so)
 660 {
 661         struct sctp_inpcb *inp;
 662
 663         inp = (struct sctp_inpcb *)so->so_pcb;
 664         if (inp == NULL) {
 665                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 666                 return (ENOTCONN);
 667         }
 668         SCTP_INP_RLOCK(inp);
 669         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 670             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 671                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 672                         /* No connection */
 673                         SCTP_INP_RUNLOCK(inp);
 674                         return (0);
 675                 } else {
 676                         struct sctp_association *asoc;
 677                         struct sctp_tcb *stcb;
 678
 679                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 680                         if (stcb == NULL) {
 681                                 SCTP_INP_RUNLOCK(inp);
 682                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 683                                 return (EINVAL);
 684                         }
 685                         SCTP_TCB_LOCK(stcb);
 686                         asoc = &stcb->asoc;
 687                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 688                                 /* We are about to be freed, out of here */
 689                                 SCTP_TCB_UNLOCK(stcb);
 690                                 SCTP_INP_RUNLOCK(inp);
 691                                 return (0);
 692                         }
 693                         if (((so->so_options & SO_LINGER) &&
 694                             (so->so_linger == 0)) ||
 695                             (so->so_rcv.sb_cc > 0)) {
 696                                 if (SCTP_GET_STATE(asoc) !=
 697                                     SCTP_STATE_COOKIE_WAIT) {
 698                                         /* Left with Data unread */
 699                                         struct mbuf *err;
 700
 701                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 702                                         if (err) {
 703                                                 /*
 704                                                  * Fill in the user
 705                                                  * initiated abort
 706                                                  */
 707                                                 struct sctp_paramhdr *ph;
 708
 709                                                 ph = mtod(err, struct sctp_paramhdr *);
 710                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 711                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 712                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 713                                         }
 714                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 715                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 716                                 }
 717                                 SCTP_INP_RUNLOCK(inp);
 718                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 719                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 720                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 721                                 }
 722                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 723                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 724                                 /* No unlock tcb assoc is gone */
 725                                 return (0);
 726                         }
 727                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 728                             TAILQ_EMPTY(&asoc->sent_queue) &&
 729                             (asoc->stream_queue_cnt == 0)) {
 730                                 /* there is nothing queued to send, so done */
 731                                 if (asoc->locked_on_sending) {
 732                                         goto abort_anyway;
 733                                 }
 734                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 735                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 736                                         /* only send SHUTDOWN 1st time thru */
 737                                         struct sctp_nets *netp;
 738
 739                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 740                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 741                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 742                                         }
 743                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 744                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 745                                         sctp_stop_timers_for_shutdown(stcb);
 746                                         if (stcb->asoc.alternate) {
 747                                                 netp = stcb->asoc.alternate;
 748                                         } else {
 749                                                 netp = stcb->asoc.primary_destination;
 750                                         }
 751                                         sctp_send_shutdown(stcb, netp);
 752                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 753                                             stcb->sctp_ep, stcb, netp);
 754                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 755                                             stcb->sctp_ep, stcb, netp);
 756                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 757                                 }
 758                         } else {
 759                                 /*
 760                                  * we still got (or just got) data to send,
 761                                  * so set SHUTDOWN_PENDING
 762                                  */
 763                                 /*
 764                                  * XXX sockets draft says that SCTP_EOF
 765                                  * should be sent with no data. currently,
 766                                  * we will allow user data to be sent first
 767                                  * and move to SHUTDOWN-PENDING
 768                                  */
 769                                 struct sctp_nets *netp;
 770
 771                                 if (stcb->asoc.alternate) {
 772                                         netp = stcb->asoc.alternate;
 773                                 } else {
 774                                         netp = stcb->asoc.primary_destination;
 775                                 }
 776
 777                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 778                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 779                                     netp);
 780                                 if (asoc->locked_on_sending) {
 781                                         /* Locked to send out the data */
 782                                         struct sctp_stream_queue_pending *sp;
 783
 784                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 785                                         if (sp == NULL) {
 786                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 787                                                     asoc->locked_on_sending->stream_no);
 788                                         } else {
 789                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 790                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 791                                         }
 792                                 }
 793                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 794                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 795                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 796                                         struct mbuf *op_err;
 797
 798                         abort_anyway:
 799                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 800                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 801                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 802                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 803                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 804                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 805                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 806                                         }
 807                                         SCTP_INP_RUNLOCK(inp);
 808                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 809                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 810                                         return (0);
 811                                 } else {
 812                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 813                                 }
 814                         }
 815                         soisdisconnecting(so);
 816                         SCTP_TCB_UNLOCK(stcb);
 817                         SCTP_INP_RUNLOCK(inp);
 818                         return (0);
 819                 }
 820                 /* not reached */
 821         } else {
 822                 /* UDP model does not support this */
 823                 SCTP_INP_RUNLOCK(inp);
 824                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 825                 return (EOPNOTSUPP);
 826         }
 827 }
 828
 829 int
 830 sctp_flush(struct socket *so, int how)
 831 {
 832         /*
 833          * We will just clear out the values and let subsequent close clear
 834          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 835          * they will not be able to read the data, the socket will block
 836          * that from happening.
 837          */
 838         struct sctp_inpcb *inp;
 839
 840         inp = (struct sctp_inpcb *)so->so_pcb;
 841         if (inp == NULL) {
 842                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 843                 return (EINVAL);
 844         }
 845         SCTP_INP_RLOCK(inp);
 846         /* For the 1 to many model this does nothing */
 847         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 848                 SCTP_INP_RUNLOCK(inp);
 849                 return (0);
 850         }
 851         SCTP_INP_RUNLOCK(inp);
 852         if ((how == PRU_FLUSH_RD) || (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                 SCTP_INP_WLOCK(inp);
 858                 SCTP_INP_READ_LOCK(inp);
 859                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 860                 SCTP_INP_READ_UNLOCK(inp);
 861                 SCTP_INP_WUNLOCK(inp);
 862                 so->so_rcv.sb_cc = 0;
 863                 so->so_rcv.sb_mbcnt = 0;
 864                 so->so_rcv.sb_mb = NULL;
 865         }
 866         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 867                 /*
 868                  * First make sure the sb will be happy, we don't use these
 869                  * except maybe the count
 870                  */
 871                 so->so_snd.sb_cc = 0;
 872                 so->so_snd.sb_mbcnt = 0;
 873                 so->so_snd.sb_mb = NULL;
 874
 875         }
 876         return (0);
 877 }
 878
 879 int
 880 sctp_shutdown(struct socket *so)
 881 {
 882         struct sctp_inpcb *inp;
 883
 884         inp = (struct sctp_inpcb *)so->so_pcb;
 885         if (inp == NULL) {
 886                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 887                 return (EINVAL);
 888         }
 889         SCTP_INP_RLOCK(inp);
 890         /* For UDP model this is a invalid call */
 891         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 892             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 893                 /* Restore the flags that the soshutdown took away. */
 894                 SOCKBUF_LOCK(&so->so_rcv);
 895                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 896                 SOCKBUF_UNLOCK(&so->so_rcv);
 897                 /* This proc will wakeup for read and do nothing (I hope) */
 898                 SCTP_INP_RUNLOCK(inp);
 899                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 900                 return (EOPNOTSUPP);
 901         } else {
 902                 /*
 903                  * Ok, if we reach here its the TCP model and it is either a
 904                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 905                  * against it.
 906                  */
 907                 struct sctp_tcb *stcb;
 908                 struct sctp_association *asoc;
 909                 struct sctp_nets *netp;
 910
 911                 if ((so->so_state &
 912                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 913                         SCTP_INP_RUNLOCK(inp);
 914                         return (ENOTCONN);
 915                 }
 916                 socantsendmore(so);
 917
 918                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 919                 if (stcb == NULL) {
 920                         /*
 921                          * Ok, we hit the case that the shutdown call was
 922                          * made after an abort or something. Nothing to do
 923                          * now.
 924                          */
 925                         SCTP_INP_RUNLOCK(inp);
 926                         return (0);
 927                 }
 928                 SCTP_TCB_LOCK(stcb);
 929                 asoc = &stcb->asoc;
 930                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 931                         SCTP_TCB_UNLOCK(stcb);
 932                         SCTP_INP_RUNLOCK(inp);
 933                         return (0);
 934                 }
 935                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 936                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 937                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 938                         /*
 939                          * If we are not in or before ESTABLISHED, there is
 940                          * no protocol action required.
 941                          */
 942                         SCTP_TCB_UNLOCK(stcb);
 943                         SCTP_INP_RUNLOCK(inp);
 944                         return (0);
 945                 }
 946                 if (stcb->asoc.alternate) {
 947                         netp = stcb->asoc.alternate;
 948                 } else {
 949                         netp = stcb->asoc.primary_destination;
 950                 }
 951                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 952                     TAILQ_EMPTY(&asoc->send_queue) &&
 953                     TAILQ_EMPTY(&asoc->sent_queue) &&
 954                     (asoc->stream_queue_cnt == 0)) {
 955                         if (asoc->locked_on_sending) {
 956                                 goto abort_anyway;
 957                         }
 958                         /* there is nothing queued to send, so I'm done... */
 959                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 960                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 961                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 962                         sctp_stop_timers_for_shutdown(stcb);
 963                         sctp_send_shutdown(stcb, netp);
 964                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 965                             stcb->sctp_ep, stcb, netp);
 966                 } else {
 967                         /*
 968                          * We still got (or just got) data to send, so set
 969                          * SHUTDOWN_PENDING.
 970                          */
 971                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 972                         if (asoc->locked_on_sending) {
 973                                 /* Locked to send out the data */
 974                                 struct sctp_stream_queue_pending *sp;
 975
 976                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 977                                 if (sp == NULL) {
 978                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 979                                             asoc->locked_on_sending->stream_no);
 980                                 } else {
 981                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 982                                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 983                                         }
 984                                 }
 985                         }
 986                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 987                             TAILQ_EMPTY(&asoc->sent_queue) &&
 988                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 989                                 struct mbuf *op_err;
 990
 991                 abort_anyway:
 992                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 993                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 994                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 995                                     op_err, SCTP_SO_LOCKED);
 996                                 SCTP_INP_RUNLOCK(inp);
 997                                 return (0);
 998                         }
 999                 }
1000                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
1001                 /*
1002                  * XXX: Why do this in the case where we have still data
1003                  * queued?
1004                  */
1005                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1006                 SCTP_TCB_UNLOCK(stcb);
1007                 SCTP_INP_RUNLOCK(inp);
1008                 return (0);
1009         }
1010 }
1011
1012 /*
1013  * copies a "user" presentable address and removes embedded scope, etc.
1014  * returns 0 on success, 1 on error
1015  */
1016 static uint32_t
1017 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1018 {
1019 #ifdef INET6
1020         struct sockaddr_in6 lsa6;
1021
1022         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1023             &lsa6);
1024 #endif
1025         memcpy(ss, sa, sa->sa_len);
1026         return (0);
1027 }
1028
1029
1030
1031 /*
1032  * NOTE: assumes addr lock is held
1033  */
1034 static size_t
1035 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1036     struct sctp_tcb *stcb,
1037     size_t limit,
1038     struct sockaddr_storage *sas,
1039     uint32_t vrf_id)
1040 {
1041         struct sctp_ifn *sctp_ifn;
1042         struct sctp_ifa *sctp_ifa;
1043         size_t actual;
1044         int loopback_scope;
1045
1046 #if defined(INET)
1047         int ipv4_local_scope, ipv4_addr_legal;
1048
1049 #endif
1050 #if defined(INET6)
1051         int local_scope, site_scope, ipv6_addr_legal;
1052
1053 #endif
1054         struct sctp_vrf *vrf;
1055
1056         actual = 0;
1057         if (limit <= 0)
1058                 return (actual);
1059
1060         if (stcb) {
1061                 /* Turn on all the appropriate scope */
1062                 loopback_scope = stcb->asoc.scope.loopback_scope;
1063 #if defined(INET)
1064                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1065                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1066 #endif
1067 #if defined(INET6)
1068                 local_scope = stcb->asoc.scope.local_scope;
1069                 site_scope = stcb->asoc.scope.site_scope;
1070                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1071 #endif
1072         } else {
1073                 /* Use generic values for endpoints. */
1074                 loopback_scope = 1;
1075 #if defined(INET)
1076                 ipv4_local_scope = 1;
1077 #endif
1078 #if defined(INET6)
1079                 local_scope = 1;
1080                 site_scope = 1;
1081 #endif
1082                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1083 #if defined(INET6)
1084                         ipv6_addr_legal = 1;
1085 #endif
1086 #if defined(INET)
1087                         if (SCTP_IPV6_V6ONLY(inp)) {
1088                                 ipv4_addr_legal = 0;
1089                         } else {
1090                                 ipv4_addr_legal = 1;
1091                         }
1092 #endif
1093                 } else {
1094 #if defined(INET6)
1095                         ipv6_addr_legal = 0;
1096 #endif
1097 #if defined(INET)
1098                         ipv4_addr_legal = 1;
1099 #endif
1100                 }
1101         }
1102         vrf = sctp_find_vrf(vrf_id);
1103         if (vrf == NULL) {
1104                 return (0);
1105         }
1106         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1107                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1108                         if ((loopback_scope == 0) &&
1109                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1110                                 /* Skip loopback if loopback_scope not set */
1111                                 continue;
1112                         }
1113                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1114                                 if (stcb) {
1115                                         /*
1116                                          * For the BOUND-ALL case, the list
1117                                          * associated with a TCB is Always
1118                                          * considered a reverse list.. i.e.
1119                                          * it lists addresses that are NOT
1120                                          * part of the association. If this
1121                                          * is one of those we must skip it.
1122                                          */
1123                                         if (sctp_is_addr_restricted(stcb,
1124                                             sctp_ifa)) {
1125                                                 continue;
1126                                         }
1127                                 }
1128                                 switch (sctp_ifa->address.sa.sa_family) {
1129 #ifdef INET
1130                                 case AF_INET:
1131                                         if (ipv4_addr_legal) {
1132                                                 struct sockaddr_in *sin;
1133
1134                                                 sin = &sctp_ifa->address.sin;
1135                                                 if (sin->sin_addr.s_addr == 0) {
1136                                                         /*
1137                                                          * we skip
1138                                                          * unspecifed
1139                                                          * addresses
1140                                                          */
1141                                                         continue;
1142                                                 }
1143                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1144                                                     &sin->sin_addr) != 0) {
1145                                                         continue;
1146                                                 }
1147                                                 if ((ipv4_local_scope == 0) &&
1148                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1149                                                         continue;
1150                                                 }
1151 #ifdef INET6
1152                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1153                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1154                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1155                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1156                                                         actual += sizeof(struct sockaddr_in6);
1157                                                 } else {
1158 #endif
1159                                                         memcpy(sas, sin, sizeof(*sin));
1160                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1161                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1162                                                         actual += sizeof(*sin);
1163 #ifdef INET6
1164                                                 }
1165 #endif
1166                                                 if (actual >= limit) {
1167                                                         return (actual);
1168                                                 }
1169                                         } else {
1170                                                 continue;
1171                                         }
1172                                         break;
1173 #endif
1174 #ifdef INET6
1175                                 case AF_INET6:
1176                                         if (ipv6_addr_legal) {
1177                                                 struct sockaddr_in6 *sin6;
1178
1179                                                 sin6 = &sctp_ifa->address.sin6;
1180                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1181                                                         /*
1182                                                          * we skip
1183                                                          * unspecifed
1184                                                          * addresses
1185                                                          */
1186                                                         continue;
1187                                                 }
1188                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1189                                                     &sin6->sin6_addr) != 0) {
1190                                                         continue;
1191                                                 }
1192                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1193                                                         if (local_scope == 0)
1194                                                                 continue;
1195                                                         if (sin6->sin6_scope_id == 0) {
1196                                                                 if (sa6_recoverscope(sin6) != 0)
1197                                                                         /*
1198                                                                          *
1199                                                                          * bad
1200                                                                          *
1201                                                                          * li
1202                                                                          * nk
1203                                                                          *
1204                                                                          * loc
1205                                                                          * al
1206                                                                          *
1207                                                                          * add
1208                                                                          * re
1209                                                                          * ss
1210                                                                          * */
1211                                                                         continue;
1212                                                         }
1213                                                 }
1214                                                 if ((site_scope == 0) &&
1215                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1216                                                         continue;
1217                                                 }
1218                                                 memcpy(sas, sin6, sizeof(*sin6));
1219                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1220                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1221                                                 actual += sizeof(*sin6);
1222                                                 if (actual >= limit) {
1223                                                         return (actual);
1224                                                 }
1225                                         } else {
1226                                                 continue;
1227                                         }
1228                                         break;
1229 #endif
1230                                 default:
1231                                         /* TSNH */
1232                                         break;
1233                                 }
1234                         }
1235                 }
1236         } else {
1237                 struct sctp_laddr *laddr;
1238
1239                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1240                         if (stcb) {
1241                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1242                                         continue;
1243                                 }
1244                         }
1245                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1246                                 continue;
1247                         switch (laddr->ifa->address.sa.sa_family) {
1248 #ifdef INET
1249                         case AF_INET:
1250                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1251                                 break;
1252 #endif
1253 #ifdef INET6
1254                         case AF_INET6:
1255                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1256                                 break;
1257 #endif
1258                         default:
1259                                 /* TSNH */
1260                                 break;
1261                         }
1262                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1263                             laddr->ifa->address.sa.sa_len);
1264                         actual += laddr->ifa->address.sa.sa_len;
1265                         if (actual >= limit) {
1266                                 return (actual);
1267                         }
1268                 }
1269         }
1270         return (actual);
1271 }
1272
1273 static size_t
1274 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1275     struct sctp_tcb *stcb,
1276     size_t limit,
1277     struct sockaddr_storage *sas)
1278 {
1279         size_t size = 0;
1280
1281         SCTP_IPI_ADDR_RLOCK();
1282         /* fill up addresses for the endpoint's default vrf */
1283         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1284             inp->def_vrf_id);
1285         SCTP_IPI_ADDR_RUNLOCK();
1286         return (size);
1287 }
1288
1289 /*
1290  * NOTE: assumes addr lock is held
1291  */
1292 static int
1293 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1294 {
1295         int cnt = 0;
1296         struct sctp_vrf *vrf = NULL;
1297
1298         /*
1299          * In both sub-set bound an bound_all cases we return the MAXIMUM
1300          * number of addresses that you COULD get. In reality the sub-set
1301          * bound may have an exclusion list for a given TCB OR in the
1302          * bound-all case a TCB may NOT include the loopback or other
1303          * addresses as well.
1304          */
1305         vrf = sctp_find_vrf(vrf_id);
1306         if (vrf == NULL) {
1307                 return (0);
1308         }
1309         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1310                 struct sctp_ifn *sctp_ifn;
1311                 struct sctp_ifa *sctp_ifa;
1312
1313                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1314                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1315                                 /* Count them if they are the right type */
1316                                 switch (sctp_ifa->address.sa.sa_family) {
1317 #ifdef INET
1318                                 case AF_INET:
1319 #ifdef INET6
1320                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1321                                                 cnt += sizeof(struct sockaddr_in6);
1322                                         else
1323                                                 cnt += sizeof(struct sockaddr_in);
1324 #else
1325                                         cnt += sizeof(struct sockaddr_in);
1326 #endif
1327                                         break;
1328 #endif
1329 #ifdef INET6
1330                                 case AF_INET6:
1331                                         cnt += sizeof(struct sockaddr_in6);
1332                                         break;
1333 #endif
1334                                 default:
1335                                         break;
1336                                 }
1337                         }
1338                 }
1339         } else {
1340                 struct sctp_laddr *laddr;
1341
1342                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1343                         switch (laddr->ifa->address.sa.sa_family) {
1344 #ifdef INET
1345                         case AF_INET:
1346 #ifdef INET6
1347                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1348                                         cnt += sizeof(struct sockaddr_in6);
1349                                 else
1350                                         cnt += sizeof(struct sockaddr_in);
1351 #else
1352                                 cnt += sizeof(struct sockaddr_in);
1353 #endif
1354                                 break;
1355 #endif
1356 #ifdef INET6
1357                         case AF_INET6:
1358                                 cnt += sizeof(struct sockaddr_in6);
1359                                 break;
1360 #endif
1361                         default:
1362                                 break;
1363                         }
1364                 }
1365         }
1366         return (cnt);
1367 }
1368
1369 static int
1370 sctp_count_max_addresses(struct sctp_inpcb *inp)
1371 {
1372         int cnt = 0;
1373
1374         SCTP_IPI_ADDR_RLOCK();
1375         /* count addresses for the endpoint's default VRF */
1376         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1377         SCTP_IPI_ADDR_RUNLOCK();
1378         return (cnt);
1379 }
1380
1381 static int
1382 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1383     size_t optsize, void *p, int delay)
1384 {
1385         int error = 0;
1386         int creat_lock_on = 0;
1387         struct sctp_tcb *stcb = NULL;
1388         struct sockaddr *sa;
1389         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1390         uint32_t vrf_id;
1391         int bad_addresses = 0;
1392         sctp_assoc_t *a_id;
1393
1394         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1395
1396         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1397             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1398                 /* We are already connected AND the TCP model */
1399                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1400                 return (EADDRINUSE);
1401         }
1402         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1403             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1404                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1405                 return (EINVAL);
1406         }
1407         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1408                 SCTP_INP_RLOCK(inp);
1409                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1410                 SCTP_INP_RUNLOCK(inp);
1411         }
1412         if (stcb) {
1413                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1414                 return (EALREADY);
1415         }
1416         SCTP_INP_INCR_REF(inp);
1417         SCTP_ASOC_CREATE_LOCK(inp);
1418         creat_lock_on = 1;
1419         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1420             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1421                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1422                 error = EFAULT;
1423                 goto out_now;
1424         }
1425         totaddrp = (unsigned int *)optval;
1426         totaddr = *totaddrp;
1427         sa = (struct sockaddr *)(totaddrp + 1);
1428         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1429         if ((stcb != NULL) || bad_addresses) {
1430                 /* Already have or am bring up an association */
1431                 SCTP_ASOC_CREATE_UNLOCK(inp);
1432                 creat_lock_on = 0;
1433                 if (stcb)
1434                         SCTP_TCB_UNLOCK(stcb);
1435                 if (bad_addresses == 0) {
1436                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1437                         error = EALREADY;
1438                 }
1439                 goto out_now;
1440         }
1441 #ifdef INET6
1442         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1443             (num_v6 > 0)) {
1444                 error = EINVAL;
1445                 goto out_now;
1446         }
1447         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1448             (num_v4 > 0)) {
1449                 struct in6pcb *inp6;
1450
1451                 inp6 = (struct in6pcb *)inp;
1452                 if (SCTP_IPV6_V6ONLY(inp6)) {
1453                         /*
1454                          * if IPV6_V6ONLY flag, ignore connections destined
1455                          * to a v4 addr or v4-mapped addr
1456                          */
1457                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1458                         error = EINVAL;
1459                         goto out_now;
1460                 }
1461         }
1462 #endif                          /* INET6 */
1463         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1464             SCTP_PCB_FLAGS_UNBOUND) {
1465                 /* Bind a ephemeral port */
1466                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1467                 if (error) {
1468                         goto out_now;
1469                 }
1470         }
1471         /* FIX ME: do we want to pass in a vrf on the connect call? */
1472         vrf_id = inp->def_vrf_id;
1473
1474
1475         /* We are GOOD to go */
1476         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1477             inp->sctp_ep.pre_open_stream_count,
1478             inp->sctp_ep.port,
1479             (struct thread *)p
1480             );
1481         if (stcb == NULL) {
1482                 /* Gak! no memory */
1483                 goto out_now;
1484         }
1485         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1486                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1487                 /* Set the connected flag so we can queue data */
1488                 soisconnecting(so);
1489         }
1490         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1491         /* move to second address */
1492         switch (sa->sa_family) {
1493 #ifdef INET
1494         case AF_INET:
1495                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1496                 break;
1497 #endif
1498 #ifdef INET6
1499         case AF_INET6:
1500                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1501                 break;
1502 #endif
1503         default:
1504                 break;
1505         }
1506
1507         error = 0;
1508         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1509         /* Fill in the return id */
1510         if (error) {
1511                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1512                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1513                 goto out_now;
1514         }
1515         a_id = (sctp_assoc_t *) optval;
1516         *a_id = sctp_get_associd(stcb);
1517
1518         /* initialize authentication parameters for the assoc */
1519         sctp_initialize_auth_params(inp, stcb);
1520
1521         if (delay) {
1522                 /* doing delayed connection */
1523                 stcb->asoc.delayed_connection = 1;
1524                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1525         } else {
1526                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1527                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1528         }
1529         SCTP_TCB_UNLOCK(stcb);
1530         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1531                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1532                 /* Set the connected flag so we can queue data */
1533                 soisconnecting(so);
1534         }
1535 out_now:
1536         if (creat_lock_on) {
1537                 SCTP_ASOC_CREATE_UNLOCK(inp);
1538         }
1539         SCTP_INP_DECR_REF(inp);
1540         return (error);
1541 }
1542
1543 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1544         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1545             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1546                 SCTP_INP_RLOCK(inp); \
1547                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1548                 if (stcb) { \
1549                         SCTP_TCB_LOCK(stcb); \
1550                 } \
1551                 SCTP_INP_RUNLOCK(inp); \
1552         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1553                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1554                 if (stcb == NULL) { \
1555                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1556                         error = ENOENT; \
1557                         break; \
1558                 } \
1559         } else { \
1560                 stcb = NULL; \
1561         } \
1562   }
1563
1564
1565 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1566         if (size < sizeof(type)) { \
1567                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1568                 error = EINVAL; \
1569                 break; \
1570         } else { \
1571                 destp = (type *)srcp; \
1572         } \
1573       }
1574
1575 static int
1576 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1577     void *p)
1578 {
1579         struct sctp_inpcb *inp = NULL;
1580         int error, val = 0;
1581         struct sctp_tcb *stcb = NULL;
1582
1583         if (optval == NULL) {
1584                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1585                 return (EINVAL);
1586         }
1587         inp = (struct sctp_inpcb *)so->so_pcb;
1588         if (inp == NULL) {
1589                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1590                 return EINVAL;
1591         }
1592         error = 0;
1593
1594         switch (optname) {
1595         case SCTP_NODELAY:
1596         case SCTP_AUTOCLOSE:
1597         case SCTP_EXPLICIT_EOR:
1598         case SCTP_AUTO_ASCONF:
1599         case SCTP_DISABLE_FRAGMENTS:
1600         case SCTP_I_WANT_MAPPED_V4_ADDR:
1601         case SCTP_USE_EXT_RCVINFO:
1602                 SCTP_INP_RLOCK(inp);
1603                 switch (optname) {
1604                 case SCTP_DISABLE_FRAGMENTS:
1605                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1606                         break;
1607                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1608                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1609                         break;
1610                 case SCTP_AUTO_ASCONF:
1611                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1612                                 /* only valid for bound all sockets */
1613                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1614                         } else {
1615                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1616                                 error = EINVAL;
1617                                 goto flags_out;
1618                         }
1619                         break;
1620                 case SCTP_EXPLICIT_EOR:
1621                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1622                         break;
1623                 case SCTP_NODELAY:
1624                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1625                         break;
1626                 case SCTP_USE_EXT_RCVINFO:
1627                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1628                         break;
1629                 case SCTP_AUTOCLOSE:
1630                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1631                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1632                         else
1633                                 val = 0;
1634                         break;
1635
1636                 default:
1637                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1638                         error = ENOPROTOOPT;
1639                 }               /* end switch (sopt->sopt_name) */
1640                 if (*optsize < sizeof(val)) {
1641                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1642                         error = EINVAL;
1643                 }
1644 flags_out:
1645                 SCTP_INP_RUNLOCK(inp);
1646                 if (error == 0) {
1647                         /* return the option value */
1648                         *(int *)optval = val;
1649                         *optsize = sizeof(val);
1650                 }
1651                 break;
1652         case SCTP_GET_PACKET_LOG:
1653                 {
1654 #ifdef  SCTP_PACKET_LOGGING
1655                         uint8_t *target;
1656                         int ret;
1657
1658                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1659                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1660                         *optsize = ret;
1661 #else
1662                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1663                         error = EOPNOTSUPP;
1664 #endif
1665                         break;
1666                 }
1667         case SCTP_REUSE_PORT:
1668                 {
1669                         uint32_t *value;
1670
1671                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1672                                 /* Can't do this for a 1-m socket */
1673                                 error = EINVAL;
1674                                 break;
1675                         }
1676                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1677                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1678                         *optsize = sizeof(uint32_t);
1679                         break;
1680                 }
1681         case SCTP_PARTIAL_DELIVERY_POINT:
1682                 {
1683                         uint32_t *value;
1684
1685                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1686                         *value = inp->partial_delivery_point;
1687                         *optsize = sizeof(uint32_t);
1688                         break;
1689                 }
1690         case SCTP_FRAGMENT_INTERLEAVE:
1691                 {
1692                         uint32_t *value;
1693
1694                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1695                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1696                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1697                                         *value = SCTP_FRAG_LEVEL_2;
1698                                 } else {
1699                                         *value = SCTP_FRAG_LEVEL_1;
1700                                 }
1701                         } else {
1702                                 *value = SCTP_FRAG_LEVEL_0;
1703                         }
1704                         *optsize = sizeof(uint32_t);
1705                         break;
1706                 }
1707         case SCTP_INTERLEAVING_SUPPORTED:
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
1714                         if (stcb) {
1715                                 av->assoc_value = stcb->asoc.idata_supported;
1716                                 SCTP_TCB_UNLOCK(stcb);
1717                         } else {
1718                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1719                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1720                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1721                                         SCTP_INP_RLOCK(inp);
1722                                         if (inp->idata_supported) {
1723                                                 av->assoc_value = 1;
1724                                         } else {
1725                                                 av->assoc_value = 0;
1726                                         }
1727                                         SCTP_INP_RUNLOCK(inp);
1728                                 } else {
1729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1730                                         error = EINVAL;
1731                                 }
1732                         }
1733                         if (error == 0) {
1734                                 *optsize = sizeof(struct sctp_assoc_value);
1735                         }
1736                         break;
1737                 }
1738         case SCTP_CMT_ON_OFF:
1739                 {
1740                         struct sctp_assoc_value *av;
1741
1742                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1743                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1744                         if (stcb) {
1745                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1746                                 SCTP_TCB_UNLOCK(stcb);
1747                         } else {
1748                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1749                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1750                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1751                                         SCTP_INP_RLOCK(inp);
1752                                         av->assoc_value = inp->sctp_cmt_on_off;
1753                                         SCTP_INP_RUNLOCK(inp);
1754                                 } else {
1755                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1756                                         error = EINVAL;
1757                                 }
1758                         }
1759                         if (error == 0) {
1760                                 *optsize = sizeof(struct sctp_assoc_value);
1761                         }
1762                         break;
1763                 }
1764         case SCTP_PLUGGABLE_CC:
1765                 {
1766                         struct sctp_assoc_value *av;
1767
1768                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1769                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1770                         if (stcb) {
1771                                 av->assoc_value = stcb->asoc.congestion_control_module;
1772                                 SCTP_TCB_UNLOCK(stcb);
1773                         } else {
1774                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1775                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1776                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1777                                         SCTP_INP_RLOCK(inp);
1778                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1779                                         SCTP_INP_RUNLOCK(inp);
1780                                 } else {
1781                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1782                                         error = EINVAL;
1783                                 }
1784                         }
1785                         if (error == 0) {
1786                                 *optsize = sizeof(struct sctp_assoc_value);
1787                         }
1788                         break;
1789                 }
1790         case SCTP_CC_OPTION:
1791                 {
1792                         struct sctp_cc_option *cc_opt;
1793
1794                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1795                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1796                         if (stcb == NULL) {
1797                                 error = EINVAL;
1798                         } else {
1799                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1800                                         error = ENOTSUP;
1801                                 } else {
1802                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1803                                         *optsize = sizeof(struct sctp_cc_option);
1804                                 }
1805                                 SCTP_TCB_UNLOCK(stcb);
1806                         }
1807                         break;
1808                 }
1809         case SCTP_PLUGGABLE_SS:
1810                 {
1811                         struct sctp_assoc_value *av;
1812
1813                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1814                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1815                         if (stcb) {
1816                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1817                                 SCTP_TCB_UNLOCK(stcb);
1818                         } else {
1819                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1820                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1821                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1822                                         SCTP_INP_RLOCK(inp);
1823                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1824                                         SCTP_INP_RUNLOCK(inp);
1825                                 } else {
1826                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1827                                         error = EINVAL;
1828                                 }
1829                         }
1830                         if (error == 0) {
1831                                 *optsize = sizeof(struct sctp_assoc_value);
1832                         }
1833                         break;
1834                 }
1835         case SCTP_SS_VALUE:
1836                 {
1837                         struct sctp_stream_value *av;
1838
1839                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1840                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1841                         if (stcb) {
1842                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1843                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1844                                     &av->stream_value) < 0)) {
1845                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1846                                         error = EINVAL;
1847                                 } else {
1848                                         *optsize = sizeof(struct sctp_stream_value);
1849                                 }
1850                                 SCTP_TCB_UNLOCK(stcb);
1851                         } else {
1852                                 /*
1853                                  * Can't get stream value without
1854                                  * association
1855                                  */
1856                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1857                                 error = EINVAL;
1858                         }
1859                         break;
1860                 }
1861         case SCTP_GET_ADDR_LEN:
1862                 {
1863                         struct sctp_assoc_value *av;
1864
1865                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1866                         error = EINVAL;
1867 #ifdef INET
1868                         if (av->assoc_value == AF_INET) {
1869                                 av->assoc_value = sizeof(struct sockaddr_in);
1870                                 error = 0;
1871                         }
1872 #endif
1873 #ifdef INET6
1874                         if (av->assoc_value == AF_INET6) {
1875                                 av->assoc_value = sizeof(struct sockaddr_in6);
1876                                 error = 0;
1877                         }
1878 #endif
1879                         if (error) {
1880                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1881                         } else {
1882                                 *optsize = sizeof(struct sctp_assoc_value);
1883                         }
1884                         break;
1885                 }
1886         case SCTP_GET_ASSOC_NUMBER:
1887                 {
1888                         uint32_t *value, cnt;
1889
1890                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1891                         SCTP_INP_RLOCK(inp);
1892                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1893                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1894                                 /* Can't do this for a 1-1 socket */
1895                                 error = EINVAL;
1896                                 SCTP_INP_RUNLOCK(inp);
1897                                 break;
1898                         }
1899                         cnt = 0;
1900                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1901                                 cnt++;
1902                         }
1903                         SCTP_INP_RUNLOCK(inp);
1904                         *value = cnt;
1905                         *optsize = sizeof(uint32_t);
1906                         break;
1907                 }
1908         case SCTP_GET_ASSOC_ID_LIST:
1909                 {
1910                         struct sctp_assoc_ids *ids;
1911                         uint32_t at;
1912                         size_t limit;
1913
1914                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1915                         SCTP_INP_RLOCK(inp);
1916                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1917                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1918                                 /* Can't do this for a 1-1 socket */
1919                                 error = EINVAL;
1920                                 SCTP_INP_RUNLOCK(inp);
1921                                 break;
1922                         }
1923                         at = 0;
1924                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1925                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1926                                 if (at < limit) {
1927                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1928                                         if (at == 0) {
1929                                                 error = EINVAL;
1930                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1931                                                 break;
1932                                         }
1933                                 } else {
1934                                         error = EINVAL;
1935                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1936                                         break;
1937                                 }
1938                         }
1939                         SCTP_INP_RUNLOCK(inp);
1940                         if (error == 0) {
1941                                 ids->gaids_number_of_ids = at;
1942                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1943                         }
1944                         break;
1945                 }
1946         case SCTP_CONTEXT:
1947                 {
1948                         struct sctp_assoc_value *av;
1949
1950                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1951                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1952
1953                         if (stcb) {
1954                                 av->assoc_value = stcb->asoc.context;
1955                                 SCTP_TCB_UNLOCK(stcb);
1956                         } else {
1957                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1958                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1959                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1960                                         SCTP_INP_RLOCK(inp);
1961                                         av->assoc_value = inp->sctp_context;
1962                                         SCTP_INP_RUNLOCK(inp);
1963                                 } else {
1964                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1965                                         error = EINVAL;
1966                                 }
1967                         }
1968                         if (error == 0) {
1969                                 *optsize = sizeof(struct sctp_assoc_value);
1970                         }
1971                         break;
1972                 }
1973         case SCTP_VRF_ID:
1974                 {
1975                         uint32_t *default_vrfid;
1976
1977                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1978                         *default_vrfid = inp->def_vrf_id;
1979                         *optsize = sizeof(uint32_t);
1980                         break;
1981                 }
1982         case SCTP_GET_ASOC_VRF:
1983                 {
1984                         struct sctp_assoc_value *id;
1985
1986                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1987                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1988                         if (stcb == NULL) {
1989                                 error = EINVAL;
1990                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1991                         } else {
1992                                 id->assoc_value = stcb->asoc.vrf_id;
1993                                 *optsize = sizeof(struct sctp_assoc_value);
1994                         }
1995                         break;
1996                 }
1997         case SCTP_GET_VRF_IDS:
1998                 {
1999                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2000                         error = EOPNOTSUPP;
2001                         break;
2002                 }
2003         case SCTP_GET_NONCE_VALUES:
2004                 {
2005                         struct sctp_get_nonce_values *gnv;
2006
2007                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2008                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2009
2010                         if (stcb) {
2011                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2012                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2013                                 SCTP_TCB_UNLOCK(stcb);
2014                                 *optsize = sizeof(struct sctp_get_nonce_values);
2015                         } else {
2016                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2017                                 error = ENOTCONN;
2018                         }
2019                         break;
2020                 }
2021         case SCTP_DELAYED_SACK:
2022                 {
2023                         struct sctp_sack_info *sack;
2024
2025                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2026                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2027                         if (stcb) {
2028                                 sack->sack_delay = stcb->asoc.delayed_ack;
2029                                 sack->sack_freq = stcb->asoc.sack_freq;
2030                                 SCTP_TCB_UNLOCK(stcb);
2031                         } else {
2032                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2033                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2034                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2035                                         SCTP_INP_RLOCK(inp);
2036                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2037                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2038                                         SCTP_INP_RUNLOCK(inp);
2039                                 } else {
2040                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2041                                         error = EINVAL;
2042                                 }
2043                         }
2044                         if (error == 0) {
2045                                 *optsize = sizeof(struct sctp_sack_info);
2046                         }
2047                         break;
2048                 }
2049         case SCTP_GET_SNDBUF_USE:
2050                 {
2051                         struct sctp_sockstat *ss;
2052
2053                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2054                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2055
2056                         if (stcb) {
2057                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2058                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2059                                     stcb->asoc.size_on_all_streams);
2060                                 SCTP_TCB_UNLOCK(stcb);
2061                                 *optsize = sizeof(struct sctp_sockstat);
2062                         } else {
2063                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2064                                 error = ENOTCONN;
2065                         }
2066                         break;
2067                 }
2068         case SCTP_MAX_BURST:
2069                 {
2070                         struct sctp_assoc_value *av;
2071
2072                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2073                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2074
2075                         if (stcb) {
2076                                 av->assoc_value = stcb->asoc.max_burst;
2077                                 SCTP_TCB_UNLOCK(stcb);
2078                         } else {
2079                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2080                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2081                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2082                                         SCTP_INP_RLOCK(inp);
2083                                         av->assoc_value = inp->sctp_ep.max_burst;
2084                                         SCTP_INP_RUNLOCK(inp);
2085                                 } else {
2086                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2087                                         error = EINVAL;
2088                                 }
2089                         }
2090                         if (error == 0) {
2091                                 *optsize = sizeof(struct sctp_assoc_value);
2092                         }
2093                         break;
2094                 }
2095         case SCTP_MAXSEG:
2096                 {
2097                         struct sctp_assoc_value *av;
2098                         int ovh;
2099
2100                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2101                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2102
2103                         if (stcb) {
2104                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2105                                 SCTP_TCB_UNLOCK(stcb);
2106                         } else {
2107                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2108                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2109                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2110                                         SCTP_INP_RLOCK(inp);
2111                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2112                                                 ovh = SCTP_MED_OVERHEAD;
2113                                         } else {
2114                                                 ovh = SCTP_MED_V4_OVERHEAD;
2115                                         }
2116                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2117                                                 av->assoc_value = 0;
2118                                         else
2119                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2120                                         SCTP_INP_RUNLOCK(inp);
2121                                 } else {
2122                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2123                                         error = EINVAL;
2124                                 }
2125                         }
2126                         if (error == 0) {
2127                                 *optsize = sizeof(struct sctp_assoc_value);
2128                         }
2129                         break;
2130                 }
2131         case SCTP_GET_STAT_LOG:
2132                 error = sctp_fill_stat_log(optval, optsize);
2133                 break;
2134         case SCTP_EVENTS:
2135                 {
2136                         struct sctp_event_subscribe *events;
2137
2138                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2139                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2140                         SCTP_INP_RLOCK(inp);
2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2142                                 events->sctp_data_io_event = 1;
2143
2144                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2145                                 events->sctp_association_event = 1;
2146
2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2148                                 events->sctp_address_event = 1;
2149
2150                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2151                                 events->sctp_send_failure_event = 1;
2152
2153                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2154                                 events->sctp_peer_error_event = 1;
2155
2156                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2157                                 events->sctp_shutdown_event = 1;
2158
2159                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2160                                 events->sctp_partial_delivery_event = 1;
2161
2162                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2163                                 events->sctp_adaptation_layer_event = 1;
2164
2165                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2166                                 events->sctp_authentication_event = 1;
2167
2168                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2169                                 events->sctp_sender_dry_event = 1;
2170
2171                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2172                                 events->sctp_stream_reset_event = 1;
2173                         SCTP_INP_RUNLOCK(inp);
2174                         *optsize = sizeof(struct sctp_event_subscribe);
2175                         break;
2176                 }
2177         case SCTP_ADAPTATION_LAYER:
2178                 {
2179                         uint32_t *value;
2180
2181                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2182
2183                         SCTP_INP_RLOCK(inp);
2184                         *value = inp->sctp_ep.adaptation_layer_indicator;
2185                         SCTP_INP_RUNLOCK(inp);
2186                         *optsize = sizeof(uint32_t);
2187                         break;
2188                 }
2189         case SCTP_SET_INITIAL_DBG_SEQ:
2190                 {
2191                         uint32_t *value;
2192
2193                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2194                         SCTP_INP_RLOCK(inp);
2195                         *value = inp->sctp_ep.initial_sequence_debug;
2196                         SCTP_INP_RUNLOCK(inp);
2197                         *optsize = sizeof(uint32_t);
2198                         break;
2199                 }
2200         case SCTP_GET_LOCAL_ADDR_SIZE:
2201                 {
2202                         uint32_t *value;
2203
2204                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2205                         SCTP_INP_RLOCK(inp);
2206                         *value = sctp_count_max_addresses(inp);
2207                         SCTP_INP_RUNLOCK(inp);
2208                         *optsize = sizeof(uint32_t);
2209                         break;
2210                 }
2211         case SCTP_GET_REMOTE_ADDR_SIZE:
2212                 {
2213                         uint32_t *value;
2214                         size_t size;
2215                         struct sctp_nets *net;
2216
2217                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2218                         /* FIXME MT: change to sctp_assoc_value? */
2219                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2220
2221                         if (stcb) {
2222                                 size = 0;
2223                                 /* Count the sizes */
2224                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2225                                         switch (net->ro._l_addr.sa.sa_family) {
2226 #ifdef INET
2227                                         case AF_INET:
2228 #ifdef INET6
2229                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2230                                                         size += sizeof(struct sockaddr_in6);
2231                                                 } else {
2232                                                         size += sizeof(struct sockaddr_in);
2233                                                 }
2234 #else
2235                                                 size += sizeof(struct sockaddr_in);
2236 #endif
2237                                                 break;
2238 #endif
2239 #ifdef INET6
2240                                         case AF_INET6:
2241                                                 size += sizeof(struct sockaddr_in6);
2242                                                 break;
2243 #endif
2244                                         default:
2245                                                 break;
2246                                         }
2247                                 }
2248                                 SCTP_TCB_UNLOCK(stcb);
2249                                 *value = (uint32_t) size;
2250                                 *optsize = sizeof(uint32_t);
2251                         } else {
2252                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2253                                 error = ENOTCONN;
2254                         }
2255                         break;
2256                 }
2257         case SCTP_GET_PEER_ADDRESSES:
2258                 /*
2259                  * Get the address information, an array is passed in to
2260                  * fill up we pack it.
2261                  */
2262                 {
2263                         size_t cpsz, left;
2264                         struct sockaddr_storage *sas;
2265                         struct sctp_nets *net;
2266                         struct sctp_getaddresses *saddr;
2267
2268                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2269                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2270
2271                         if (stcb) {
2272                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2273                                 *optsize = sizeof(struct sctp_getaddresses);
2274                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2275
2276                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2277                                         switch (net->ro._l_addr.sa.sa_family) {
2278 #ifdef INET
2279                                         case AF_INET:
2280 #ifdef INET6
2281                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2282                                                         cpsz = sizeof(struct sockaddr_in6);
2283                                                 } else {
2284                                                         cpsz = sizeof(struct sockaddr_in);
2285                                                 }
2286 #else
2287                                                 cpsz = sizeof(struct sockaddr_in);
2288 #endif
2289                                                 break;
2290 #endif
2291 #ifdef INET6
2292                                         case AF_INET6:
2293                                                 cpsz = sizeof(struct sockaddr_in6);
2294                                                 break;
2295 #endif
2296                                         default:
2297                                                 cpsz = 0;
2298                                                 break;
2299                                         }
2300                                         if (cpsz == 0) {
2301                                                 break;
2302                                         }
2303                                         if (left < cpsz) {
2304                                                 /* not enough room. */
2305                                                 break;
2306                                         }
2307 #if defined(INET) && defined(INET6)
2308                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2309                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2310                                                 /* Must map the address */
2311                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2312                                                     (struct sockaddr_in6 *)sas);
2313                                         } else {
2314                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2315                                         }
2316 #else
2317                                         memcpy(sas, &net->ro._l_addr, cpsz);
2318 #endif
2319                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2320
2321                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2322                                         left -= cpsz;
2323                                         *optsize += cpsz;
2324                                 }
2325                                 SCTP_TCB_UNLOCK(stcb);
2326                         } else {
2327                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2328                                 error = ENOENT;
2329                         }
2330                         break;
2331                 }
2332         case SCTP_GET_LOCAL_ADDRESSES:
2333                 {
2334                         size_t limit, actual;
2335                         struct sockaddr_storage *sas;
2336                         struct sctp_getaddresses *saddr;
2337
2338                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2339                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2340
2341                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2342                         limit = *optsize - sizeof(sctp_assoc_t);
2343                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2344                         if (stcb) {
2345                                 SCTP_TCB_UNLOCK(stcb);
2346                         }
2347                         *optsize = sizeof(struct sockaddr_storage) + actual;
2348                         break;
2349                 }
2350         case SCTP_PEER_ADDR_PARAMS:
2351                 {
2352                         struct sctp_paddrparams *paddrp;
2353                         struct sctp_nets *net;
2354                         struct sockaddr *addr;
2355
2356 #if defined(INET) && defined(INET6)
2357                         struct sockaddr_in sin_store;
2358
2359 #endif
2360
2361                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2362                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2363
2364 #if defined(INET) && defined(INET6)
2365                         if (paddrp->spp_address.ss_family == AF_INET6) {
2366                                 struct sockaddr_in6 *sin6;
2367
2368                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2369                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2370                                         in6_sin6_2_sin(&sin_store, sin6);
2371                                         addr = (struct sockaddr *)&sin_store;
2372                                 } else {
2373                                         addr = (struct sockaddr *)&paddrp->spp_address;
2374                                 }
2375                         } else {
2376                                 addr = (struct sockaddr *)&paddrp->spp_address;
2377                         }
2378 #else
2379                         addr = (struct sockaddr *)&paddrp->spp_address;
2380 #endif
2381                         if (stcb != NULL) {
2382                                 net = sctp_findnet(stcb, addr);
2383                         } else {
2384                                 /*
2385                                  * We increment here since
2386                                  * sctp_findassociation_ep_addr() wil do a
2387                                  * decrement if it finds the stcb as long as
2388                                  * the locked tcb (last argument) is NOT a
2389                                  * TCB.. aka NULL.
2390                                  */
2391                                 net = NULL;
2392                                 SCTP_INP_INCR_REF(inp);
2393                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2394                                 if (stcb == NULL) {
2395                                         SCTP_INP_DECR_REF(inp);
2396                                 }
2397                         }
2398                         if ((stcb != NULL) && (net == NULL)) {
2399 #ifdef INET
2400                                 if (addr->sa_family == AF_INET) {
2401                                         struct sockaddr_in *sin;
2402
2403                                         sin = (struct sockaddr_in *)addr;
2404                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2405                                                 error = EINVAL;
2406                                                 SCTP_TCB_UNLOCK(stcb);
2407                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2408                                                 break;
2409                                         }
2410                                 } else
2411 #endif
2412 #ifdef INET6
2413                                 if (addr->sa_family == AF_INET6) {
2414                                         struct sockaddr_in6 *sin6;
2415
2416                                         sin6 = (struct sockaddr_in6 *)addr;
2417                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2418                                                 error = EINVAL;
2419                                                 SCTP_TCB_UNLOCK(stcb);
2420                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2421                                                 break;
2422                                         }
2423                                 } else
2424 #endif
2425                                 {
2426                                         error = EAFNOSUPPORT;
2427                                         SCTP_TCB_UNLOCK(stcb);
2428                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2429                                         break;
2430                                 }
2431                         }
2432                         if (stcb != NULL) {
2433                                 /* Applies to the specific association */
2434                                 paddrp->spp_flags = 0;
2435                                 if (net != NULL) {
2436                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2437                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2438                                         paddrp->spp_pathmtu = net->mtu;
2439                                         switch (net->ro._l_addr.sa.sa_family) {
2440 #ifdef INET
2441                                         case AF_INET:
2442                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2443                                                 break;
2444 #endif
2445 #ifdef INET6
2446                                         case AF_INET6:
2447                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2448                                                 break;
2449 #endif
2450                                         default:
2451                                                 break;
2452                                         }
2453                                         /* get flags for HB */
2454                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2455                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2456                                         } else {
2457                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2458                                         }
2459                                         /* get flags for PMTU */
2460                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2461                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2462                                         } else {
2463                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2464                                         }
2465                                         if (net->dscp & 0x01) {
2466                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2467                                                 paddrp->spp_flags |= SPP_DSCP;
2468                                         }
2469 #ifdef INET6
2470                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2471                                             (net->flowlabel & 0x80000000)) {
2472                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2473                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2474                                         }
2475 #endif
2476                                 } else {
2477                                         /*
2478                                          * No destination so return default
2479                                          * value
2480                                          */
2481                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2482                                         paddrp->spp_pathmtu = 0;
2483                                         if (stcb->asoc.default_dscp & 0x01) {
2484                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2485                                                 paddrp->spp_flags |= SPP_DSCP;
2486                                         }
2487 #ifdef INET6
2488                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2489                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2490                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2491                                         }
2492 #endif
2493                                         /* default settings should be these */
2494                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2495                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2496                                         } else {
2497                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2498                                         }
2499                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2500                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2501                                         } else {
2502                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2503                                         }
2504                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2505                                 }
2506                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2507                                 SCTP_TCB_UNLOCK(stcb);
2508                         } else {
2509                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2510                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2511                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2512                                         /* Use endpoint defaults */
2513                                         SCTP_INP_RLOCK(inp);
2514                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2515                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2516                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2517                                         /* get inp's default */
2518                                         if (inp->sctp_ep.default_dscp & 0x01) {
2519                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2520                                                 paddrp->spp_flags |= SPP_DSCP;
2521                                         }
2522 #ifdef INET6
2523                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2524                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2525                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2526                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2527                                         }
2528 #endif
2529                                         /* can't return this */
2530                                         paddrp->spp_pathmtu = 0;
2531
2532                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2533                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2534                                         } else {
2535                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2536                                         }
2537                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2538                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2539                                         } else {
2540                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2541                                         }
2542                                         SCTP_INP_RUNLOCK(inp);
2543                                 } else {
2544                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2545                                         error = EINVAL;
2546                                 }
2547                         }
2548                         if (error == 0) {
2549                                 *optsize = sizeof(struct sctp_paddrparams);
2550                         }
2551                         break;
2552                 }
2553         case SCTP_GET_PEER_ADDR_INFO:
2554                 {
2555                         struct sctp_paddrinfo *paddri;
2556                         struct sctp_nets *net;
2557                         struct sockaddr *addr;
2558
2559 #if defined(INET) && defined(INET6)
2560                         struct sockaddr_in sin_store;
2561
2562 #endif
2563
2564                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2565                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2566
2567 #if defined(INET) && defined(INET6)
2568                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2569                                 struct sockaddr_in6 *sin6;
2570
2571                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2572                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2573                                         in6_sin6_2_sin(&sin_store, sin6);
2574                                         addr = (struct sockaddr *)&sin_store;
2575                                 } else {
2576                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2577                                 }
2578                         } else {
2579                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2580                         }
2581 #else
2582                         addr = (struct sockaddr *)&paddri->spinfo_address;
2583 #endif
2584                         if (stcb != NULL) {
2585                                 net = sctp_findnet(stcb, addr);
2586                         } else {
2587                                 /*
2588                                  * We increment here since
2589                                  * sctp_findassociation_ep_addr() wil do a
2590                                  * decrement if it finds the stcb as long as
2591                                  * the locked tcb (last argument) is NOT a
2592                                  * TCB.. aka NULL.
2593                                  */
2594                                 net = NULL;
2595                                 SCTP_INP_INCR_REF(inp);
2596                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2597                                 if (stcb == NULL) {
2598                                         SCTP_INP_DECR_REF(inp);
2599                                 }
2600                         }
2601
2602                         if ((stcb != NULL) && (net != NULL)) {
2603                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2604                                         /* It's unconfirmed */
2605                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2606                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2607                                         /* It's active */
2608                                         paddri->spinfo_state = SCTP_ACTIVE;
2609                                 } else {
2610                                         /* It's inactive */
2611                                         paddri->spinfo_state = SCTP_INACTIVE;
2612                                 }
2613                                 paddri->spinfo_cwnd = net->cwnd;
2614                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2615                                 paddri->spinfo_rto = net->RTO;
2616                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2617                                 paddri->spinfo_mtu = net->mtu;
2618                                 switch (addr->sa_family) {
2619 #if defined(INET)
2620                                 case AF_INET:
2621                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2622                                         break;
2623 #endif
2624 #if defined(INET6)
2625                                 case AF_INET6:
2626                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2627                                         break;
2628 #endif
2629                                 default:
2630                                         break;
2631                                 }
2632                                 SCTP_TCB_UNLOCK(stcb);
2633                                 *optsize = sizeof(struct sctp_paddrinfo);
2634                         } else {
2635                                 if (stcb != NULL) {
2636                                         SCTP_TCB_UNLOCK(stcb);
2637                                 }
2638                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2639                                 error = ENOENT;
2640                         }
2641                         break;
2642                 }
2643         case SCTP_PCB_STATUS:
2644                 {
2645                         struct sctp_pcbinfo *spcb;
2646
2647                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2648                         sctp_fill_pcbinfo(spcb);
2649                         *optsize = sizeof(struct sctp_pcbinfo);
2650                         break;
2651                 }
2652         case SCTP_STATUS:
2653                 {
2654                         struct sctp_nets *net;
2655                         struct sctp_status *sstat;
2656
2657                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2658                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2659
2660                         if (stcb == NULL) {
2661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2662                                 error = EINVAL;
2663                                 break;
2664                         }
2665                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2666                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2667                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2668                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2669                         /*
2670                          * We can't include chunks that have been passed to
2671                          * the socket layer. Only things in queue.
2672                          */
2673                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2674                             stcb->asoc.cnt_on_all_streams);
2675
2676
2677                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2678                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2679                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2680                         memcpy(&sstat->sstat_primary.spinfo_address,
2681                             &stcb->asoc.primary_destination->ro._l_addr,
2682                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2683                         net = stcb->asoc.primary_destination;
2684                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2685                         /*
2686                          * Again the user can get info from sctp_constants.h
2687                          * for what the state of the network is.
2688                          */
2689                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2690                                 /* It's unconfirmed */
2691                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2692                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2693                                 /* It's active */
2694                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2695                         } else {
2696                                 /* It's inactive */
2697                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2698                         }
2699                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2700                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2701                         sstat->sstat_primary.spinfo_rto = net->RTO;
2702                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2703                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2704 #if defined(INET)
2705                         case AF_INET:
2706                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2707                                 break;
2708 #endif
2709 #if defined(INET6)
2710                         case AF_INET6:
2711                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2712                                 break;
2713 #endif
2714                         default:
2715                                 break;
2716                         }
2717                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2718                         SCTP_TCB_UNLOCK(stcb);
2719                         *optsize = sizeof(struct sctp_status);
2720                         break;
2721                 }
2722         case SCTP_RTOINFO:
2723                 {
2724                         struct sctp_rtoinfo *srto;
2725
2726                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2727                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2728
2729                         if (stcb) {
2730                                 srto->srto_initial = stcb->asoc.initial_rto;
2731                                 srto->srto_max = stcb->asoc.maxrto;
2732                                 srto->srto_min = stcb->asoc.minrto;
2733                                 SCTP_TCB_UNLOCK(stcb);
2734                         } else {
2735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2737                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2738                                         SCTP_INP_RLOCK(inp);
2739                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2740                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2741                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2742                                         SCTP_INP_RUNLOCK(inp);
2743                                 } else {
2744                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2745                                         error = EINVAL;
2746                                 }
2747                         }
2748                         if (error == 0) {
2749                                 *optsize = sizeof(struct sctp_rtoinfo);
2750                         }
2751                         break;
2752                 }
2753         case SCTP_TIMEOUTS:
2754                 {
2755                         struct sctp_timeouts *stimo;
2756
2757                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2758                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2759
2760                         if (stcb) {
2761                                 stimo->stimo_init = stcb->asoc.timoinit;
2762                                 stimo->stimo_data = stcb->asoc.timodata;
2763                                 stimo->stimo_sack = stcb->asoc.timosack;
2764                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2765                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2766                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2767                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2768                                 SCTP_TCB_UNLOCK(stcb);
2769                                 *optsize = sizeof(struct sctp_timeouts);
2770                         } else {
2771                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2772                                 error = EINVAL;
2773                         }
2774                         break;
2775                 }
2776         case SCTP_ASSOCINFO:
2777                 {
2778                         struct sctp_assocparams *sasoc;
2779
2780                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2781                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2782
2783                         if (stcb) {
2784                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2785                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2786                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2787                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2788                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2789                                 SCTP_TCB_UNLOCK(stcb);
2790                         } else {
2791                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2792                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2793                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2794                                         SCTP_INP_RLOCK(inp);
2795                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2796                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2797                                         sasoc->sasoc_number_peer_destinations = 0;
2798                                         sasoc->sasoc_peer_rwnd = 0;
2799                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2800                                         SCTP_INP_RUNLOCK(inp);
2801                                 } else {
2802                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2803                                         error = EINVAL;
2804                                 }
2805                         }
2806                         if (error == 0) {
2807                                 *optsize = sizeof(struct sctp_assocparams);
2808                         }
2809                         break;
2810                 }
2811         case SCTP_DEFAULT_SEND_PARAM:
2812                 {
2813                         struct sctp_sndrcvinfo *s_info;
2814
2815                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2816                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2817
2818                         if (stcb) {
2819                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2820                                 SCTP_TCB_UNLOCK(stcb);
2821                         } else {
2822                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2823                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2824                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2825                                         SCTP_INP_RLOCK(inp);
2826                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2827                                         SCTP_INP_RUNLOCK(inp);
2828                                 } else {
2829                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2830                                         error = EINVAL;
2831                                 }
2832                         }
2833                         if (error == 0) {
2834                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2835                         }
2836                         break;
2837                 }
2838         case SCTP_INITMSG:
2839                 {
2840                         struct sctp_initmsg *sinit;
2841
2842                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2843                         SCTP_INP_RLOCK(inp);
2844                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2845                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2846                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2847                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2848                         SCTP_INP_RUNLOCK(inp);
2849                         *optsize = sizeof(struct sctp_initmsg);
2850                         break;
2851                 }
2852         case SCTP_PRIMARY_ADDR:
2853                 /* we allow a "get" operation on this */
2854                 {
2855                         struct sctp_setprim *ssp;
2856
2857                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2858                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2859
2860                         if (stcb) {
2861                                 union sctp_sockstore *addr;
2862
2863                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2864                                 switch (addr->sa.sa_family) {
2865 #ifdef INET
2866                                 case AF_INET:
2867 #ifdef INET6
2868                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2869                                                 in6_sin_2_v4mapsin6(&addr->sin,
2870                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2871                                         } else {
2872                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2873                                         }
2874 #else
2875                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2876 #endif
2877                                         break;
2878 #endif
2879 #ifdef INET6
2880                                 case AF_INET6:
2881                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2882                                         break;
2883 #endif
2884                                 default:
2885                                         break;
2886                                 }
2887                                 SCTP_TCB_UNLOCK(stcb);
2888                                 *optsize = sizeof(struct sctp_setprim);
2889                         } else {
2890                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2891                                 error = EINVAL;
2892                         }
2893                         break;
2894                 }
2895         case SCTP_HMAC_IDENT:
2896                 {
2897                         struct sctp_hmacalgo *shmac;
2898                         sctp_hmaclist_t *hmaclist;
2899                         uint32_t size;
2900                         int i;
2901
2902                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2903
2904                         SCTP_INP_RLOCK(inp);
2905                         hmaclist = inp->sctp_ep.local_hmacs;
2906                         if (hmaclist == NULL) {
2907                                 /* no HMACs to return */
2908                                 *optsize = sizeof(*shmac);
2909                                 SCTP_INP_RUNLOCK(inp);
2910                                 break;
2911                         }
2912                         /* is there room for all of the hmac ids? */
2913                         size = sizeof(*shmac) + (hmaclist->num_algo *
2914                             sizeof(shmac->shmac_idents[0]));
2915                         if ((size_t)(*optsize) < size) {
2916                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2917                                 error = EINVAL;
2918                                 SCTP_INP_RUNLOCK(inp);
2919                                 break;
2920                         }
2921                         /* copy in the list */
2922                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2923                         for (i = 0; i < hmaclist->num_algo; i++) {
2924                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2925                         }
2926                         SCTP_INP_RUNLOCK(inp);
2927                         *optsize = size;
2928                         break;
2929                 }
2930         case SCTP_AUTH_ACTIVE_KEY:
2931                 {
2932                         struct sctp_authkeyid *scact;
2933
2934                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2935                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2936
2937                         if (stcb) {
2938                                 /* get the active key on the assoc */
2939                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2940                                 SCTP_TCB_UNLOCK(stcb);
2941                         } else {
2942                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2943                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2944                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2945                                         /* get the endpoint active key */
2946                                         SCTP_INP_RLOCK(inp);
2947                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2948                                         SCTP_INP_RUNLOCK(inp);
2949                                 } else {
2950                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2951                                         error = EINVAL;
2952                                 }
2953                         }
2954                         if (error == 0) {
2955                                 *optsize = sizeof(struct sctp_authkeyid);
2956                         }
2957                         break;
2958                 }
2959         case SCTP_LOCAL_AUTH_CHUNKS:
2960                 {
2961                         struct sctp_authchunks *sac;
2962                         sctp_auth_chklist_t *chklist = NULL;
2963                         size_t size = 0;
2964
2965                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2966                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2967
2968                         if (stcb) {
2969                                 /* get off the assoc */
2970                                 chklist = stcb->asoc.local_auth_chunks;
2971                                 /* is there enough space? */
2972                                 size = sctp_auth_get_chklist_size(chklist);
2973                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2974                                         error = EINVAL;
2975                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2976                                 } else {
2977                                         /* copy in the chunks */
2978                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2979                                         sac->gauth_number_of_chunks = (uint32_t) size;
2980                                         *optsize = sizeof(struct sctp_authchunks) + size;
2981                                 }
2982                                 SCTP_TCB_UNLOCK(stcb);
2983                         } else {
2984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2985                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2986                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2987                                         /* get off the endpoint */
2988                                         SCTP_INP_RLOCK(inp);
2989                                         chklist = inp->sctp_ep.local_auth_chunks;
2990                                         /* is there enough space? */
2991                                         size = sctp_auth_get_chklist_size(chklist);
2992                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2993                                                 error = EINVAL;
2994                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2995                                         } else {
2996                                                 /* copy in the chunks */
2997                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2998                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2999                                                 *optsize = sizeof(struct sctp_authchunks) + size;
3000                                         }
3001                                         SCTP_INP_RUNLOCK(inp);
3002                                 } else {
3003                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3004                                         error = EINVAL;
3005                                 }
3006                         }
3007                         break;
3008                 }
3009         case SCTP_PEER_AUTH_CHUNKS:
3010                 {
3011                         struct sctp_authchunks *sac;
3012                         sctp_auth_chklist_t *chklist = NULL;
3013                         size_t size = 0;
3014
3015                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3016                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3017
3018                         if (stcb) {
3019                                 /* get off the assoc */
3020                                 chklist = stcb->asoc.peer_auth_chunks;
3021                                 /* is there enough space? */
3022                                 size = sctp_auth_get_chklist_size(chklist);
3023                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3024                                         error = EINVAL;
3025                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3026                                 } else {
3027                                         /* copy in the chunks */
3028                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3029                                         sac->gauth_number_of_chunks = (uint32_t) size;
3030                                         *optsize = sizeof(struct sctp_authchunks) + size;
3031                                 }
3032                                 SCTP_TCB_UNLOCK(stcb);
3033                         } else {
3034                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3035                                 error = ENOENT;
3036                         }
3037                         break;
3038                 }
3039         case SCTP_EVENT:
3040                 {
3041                         struct sctp_event *event;
3042                         uint32_t event_type;
3043
3044                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3045                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3046
3047                         switch (event->se_type) {
3048                         case SCTP_ASSOC_CHANGE:
3049                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3050                                 break;
3051                         case SCTP_PEER_ADDR_CHANGE:
3052                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3053                                 break;
3054                         case SCTP_REMOTE_ERROR:
3055                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3056                                 break;
3057                         case SCTP_SEND_FAILED:
3058                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3059                                 break;
3060                         case SCTP_SHUTDOWN_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3062                                 break;
3063                         case SCTP_ADAPTATION_INDICATION:
3064                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3065                                 break;
3066                         case SCTP_PARTIAL_DELIVERY_EVENT:
3067                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3068                                 break;
3069                         case SCTP_AUTHENTICATION_EVENT:
3070                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3071                                 break;
3072                         case SCTP_STREAM_RESET_EVENT:
3073                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3074                                 break;
3075                         case SCTP_SENDER_DRY_EVENT:
3076                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3077                                 break;
3078                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3079                                 event_type = 0;
3080                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3081                                 error = ENOTSUP;
3082                                 break;
3083                         case SCTP_ASSOC_RESET_EVENT:
3084                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3085                                 break;
3086                         case SCTP_STREAM_CHANGE_EVENT:
3087                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3088                                 break;
3089                         case SCTP_SEND_FAILED_EVENT:
3090                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3091                                 break;
3092                         default:
3093                                 event_type = 0;
3094                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3095                                 error = EINVAL;
3096                                 break;
3097                         }
3098                         if (event_type > 0) {
3099                                 if (stcb) {
3100                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3101                                         SCTP_TCB_UNLOCK(stcb);
3102                                 } else {
3103                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3104                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3105                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3106                                                 SCTP_INP_RLOCK(inp);
3107                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3108                                                 SCTP_INP_RUNLOCK(inp);
3109                                         } else {
3110                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3111                                                 error = EINVAL;
3112                                         }
3113                                 }
3114                         }
3115                         if (error == 0) {
3116                                 *optsize = sizeof(struct sctp_event);
3117                         }
3118                         break;
3119                 }
3120         case SCTP_RECVRCVINFO:
3121                 {
3122                         int onoff;
3123
3124                         if (*optsize < sizeof(int)) {
3125                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3126                                 error = EINVAL;
3127                         } else {
3128                                 SCTP_INP_RLOCK(inp);
3129                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3130                                 SCTP_INP_RUNLOCK(inp);
3131                         }
3132                         if (error == 0) {
3133                                 /* return the option value */
3134                                 *(int *)optval = onoff;
3135                                 *optsize = sizeof(int);
3136                         }
3137                         break;
3138                 }
3139         case SCTP_RECVNXTINFO:
3140                 {
3141                         int onoff;
3142
3143                         if (*optsize < sizeof(int)) {
3144                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3145                                 error = EINVAL;
3146                         } else {
3147                                 SCTP_INP_RLOCK(inp);
3148                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3149                                 SCTP_INP_RUNLOCK(inp);
3150                         }
3151                         if (error == 0) {
3152                                 /* return the option value */
3153                                 *(int *)optval = onoff;
3154                                 *optsize = sizeof(int);
3155                         }
3156                         break;
3157                 }
3158         case SCTP_DEFAULT_SNDINFO:
3159                 {
3160                         struct sctp_sndinfo *info;
3161
3162                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3163                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3164
3165                         if (stcb) {
3166                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3167                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3168                                 info->snd_flags &= 0xfff0;
3169                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3170                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3171                                 SCTP_TCB_UNLOCK(stcb);
3172                         } else {
3173                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3174                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3175                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3176                                         SCTP_INP_RLOCK(inp);
3177                                         info->snd_sid = inp->def_send.sinfo_stream;
3178                                         info->snd_flags = inp->def_send.sinfo_flags;
3179                                         info->snd_flags &= 0xfff0;
3180                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3181                                         info->snd_context = inp->def_send.sinfo_context;
3182                                         SCTP_INP_RUNLOCK(inp);
3183                                 } else {
3184                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3185                                         error = EINVAL;
3186                                 }
3187                         }
3188                         if (error == 0) {
3189                                 *optsize = sizeof(struct sctp_sndinfo);
3190                         }
3191                         break;
3192                 }
3193         case SCTP_DEFAULT_PRINFO:
3194                 {
3195                         struct sctp_default_prinfo *info;
3196
3197                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3198                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3199
3200                         if (stcb) {
3201                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3202                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3203                                 SCTP_TCB_UNLOCK(stcb);
3204                         } else {
3205                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3206                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3207                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3208                                         SCTP_INP_RLOCK(inp);
3209                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3210                                         info->pr_value = inp->def_send.sinfo_timetolive;
3211                                         SCTP_INP_RUNLOCK(inp);
3212                                 } else {
3213                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3214                                         error = EINVAL;
3215                                 }
3216                         }
3217                         if (error == 0) {
3218                                 *optsize = sizeof(struct sctp_default_prinfo);
3219                         }
3220                         break;
3221                 }
3222         case SCTP_PEER_ADDR_THLDS:
3223                 {
3224                         struct sctp_paddrthlds *thlds;
3225                         struct sctp_nets *net;
3226                         struct sockaddr *addr;
3227
3228 #if defined(INET) && defined(INET6)
3229                         struct sockaddr_in sin_store;
3230
3231 #endif
3232
3233                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3234                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3235
3236 #if defined(INET) && defined(INET6)
3237                         if (thlds->spt_address.ss_family == AF_INET6) {
3238                                 struct sockaddr_in6 *sin6;
3239
3240                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3241                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3242                                         in6_sin6_2_sin(&sin_store, sin6);
3243                                         addr = (struct sockaddr *)&sin_store;
3244                                 } else {
3245                                         addr = (struct sockaddr *)&thlds->spt_address;
3246                                 }
3247                         } else {
3248                                 addr = (struct sockaddr *)&thlds->spt_address;
3249                         }
3250 #else
3251                         addr = (struct sockaddr *)&thlds->spt_address;
3252 #endif
3253                         if (stcb != NULL) {
3254                                 net = sctp_findnet(stcb, addr);
3255                         } else {
3256                                 /*
3257                                  * We increment here since
3258                                  * sctp_findassociation_ep_addr() wil do a
3259                                  * decrement if it finds the stcb as long as
3260                                  * the locked tcb (last argument) is NOT a
3261                                  * TCB.. aka NULL.
3262                                  */
3263                                 net = NULL;
3264                                 SCTP_INP_INCR_REF(inp);
3265                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3266                                 if (stcb == NULL) {
3267                                         SCTP_INP_DECR_REF(inp);
3268                                 }
3269                         }
3270                         if ((stcb != NULL) && (net == NULL)) {
3271 #ifdef INET
3272                                 if (addr->sa_family == AF_INET) {
3273                                         struct sockaddr_in *sin;
3274
3275                                         sin = (struct sockaddr_in *)addr;
3276                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3277                                                 error = EINVAL;
3278                                                 SCTP_TCB_UNLOCK(stcb);
3279                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3280                                                 break;
3281                                         }
3282                                 } else
3283 #endif
3284 #ifdef INET6
3285                                 if (addr->sa_family == AF_INET6) {
3286                                         struct sockaddr_in6 *sin6;
3287
3288                                         sin6 = (struct sockaddr_in6 *)addr;
3289                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3290                                                 error = EINVAL;
3291                                                 SCTP_TCB_UNLOCK(stcb);
3292                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3293                                                 break;
3294                                         }
3295                                 } else
3296 #endif
3297                                 {
3298                                         error = EAFNOSUPPORT;
3299                                         SCTP_TCB_UNLOCK(stcb);
3300                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3301                                         break;
3302                                 }
3303                         }
3304                         if (stcb != NULL) {
3305                                 if (net != NULL) {
3306                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3307                                         thlds->spt_pathpfthld = net->pf_threshold;
3308                                         thlds->spt_pathcpthld = 0xffff;
3309                                 } else {
3310                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3311                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3312                                         thlds->spt_pathcpthld = 0xffff;
3313                                 }
3314                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3315                                 SCTP_TCB_UNLOCK(stcb);
3316                         } else {
3317                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3318                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3319                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3320                                         /* Use endpoint defaults */
3321                                         SCTP_INP_RLOCK(inp);
3322                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3323                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3324                                         thlds->spt_pathcpthld = 0xffff;
3325                                         SCTP_INP_RUNLOCK(inp);
3326                                 } else {
3327                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3328                                         error = EINVAL;
3329                                 }
3330                         }
3331                         if (error == 0) {
3332                                 *optsize = sizeof(struct sctp_paddrthlds);
3333                         }
3334                         break;
3335                 }
3336         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3337                 {
3338                         struct sctp_udpencaps *encaps;
3339                         struct sctp_nets *net;
3340                         struct sockaddr *addr;
3341
3342 #if defined(INET) && defined(INET6)
3343                         struct sockaddr_in sin_store;
3344
3345 #endif
3346
3347                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3348                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3349
3350 #if defined(INET) && defined(INET6)
3351                         if (encaps->sue_address.ss_family == AF_INET6) {
3352                                 struct sockaddr_in6 *sin6;
3353
3354                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3355                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3356                                         in6_sin6_2_sin(&sin_store, sin6);
3357                                         addr = (struct sockaddr *)&sin_store;
3358                                 } else {
3359                                         addr = (struct sockaddr *)&encaps->sue_address;
3360                                 }
3361                         } else {
3362                                 addr = (struct sockaddr *)&encaps->sue_address;
3363                         }
3364 #else
3365                         addr = (struct sockaddr *)&encaps->sue_address;
3366 #endif
3367                         if (stcb) {
3368                                 net = sctp_findnet(stcb, addr);
3369                         } else {
3370                                 /*
3371                                  * We increment here since
3372                                  * sctp_findassociation_ep_addr() wil do a
3373                                  * decrement if it finds the stcb as long as
3374                                  * the locked tcb (last argument) is NOT a
3375                                  * TCB.. aka NULL.
3376                                  */
3377                                 net = NULL;
3378                                 SCTP_INP_INCR_REF(inp);
3379                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3380                                 if (stcb == NULL) {
3381                                         SCTP_INP_DECR_REF(inp);
3382                                 }
3383                         }
3384                         if ((stcb != NULL) && (net == NULL)) {
3385 #ifdef INET
3386                                 if (addr->sa_family == AF_INET) {
3387                                         struct sockaddr_in *sin;
3388
3389                                         sin = (struct sockaddr_in *)addr;
3390                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3391                                                 error = EINVAL;
3392                                                 SCTP_TCB_UNLOCK(stcb);
3393                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3394                                                 break;
3395                                         }
3396                                 } else
3397 #endif
3398 #ifdef INET6
3399                                 if (addr->sa_family == AF_INET6) {
3400                                         struct sockaddr_in6 *sin6;
3401
3402                                         sin6 = (struct sockaddr_in6 *)addr;
3403                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3404                                                 error = EINVAL;
3405                                                 SCTP_TCB_UNLOCK(stcb);
3406                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3407                                                 break;
3408                                         }
3409                                 } else
3410 #endif
3411                                 {
3412                                         error = EAFNOSUPPORT;
3413                                         SCTP_TCB_UNLOCK(stcb);
3414                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3415                                         break;
3416                                 }
3417                         }
3418                         if (stcb != NULL) {
3419                                 if (net) {
3420                                         encaps->sue_port = net->port;
3421                                 } else {
3422                                         encaps->sue_port = stcb->asoc.port;
3423                                 }
3424                                 SCTP_TCB_UNLOCK(stcb);
3425                         } else {
3426                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3427                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3428                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3429                                         SCTP_INP_RLOCK(inp);
3430                                         encaps->sue_port = inp->sctp_ep.port;
3431                                         SCTP_INP_RUNLOCK(inp);
3432                                 } else {
3433                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3434                                         error = EINVAL;
3435                                 }
3436                         }
3437                         if (error == 0) {
3438                                 *optsize = sizeof(struct sctp_udpencaps);
3439                         }
3440                         break;
3441                 }
3442         case SCTP_ECN_SUPPORTED:
3443                 {
3444                         struct sctp_assoc_value *av;
3445
3446                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3447                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3448
3449                         if (stcb) {
3450                                 av->assoc_value = stcb->asoc.ecn_supported;
3451                                 SCTP_TCB_UNLOCK(stcb);
3452                         } else {
3453                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3454                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3455                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3456                                         SCTP_INP_RLOCK(inp);
3457                                         av->assoc_value = inp->ecn_supported;
3458                                         SCTP_INP_RUNLOCK(inp);
3459                                 } else {
3460                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3461                                         error = EINVAL;
3462                                 }
3463                         }
3464                         if (error == 0) {
3465                                 *optsize = sizeof(struct sctp_assoc_value);
3466                         }
3467                         break;
3468                 }
3469         case SCTP_PR_SUPPORTED:
3470                 {
3471                         struct sctp_assoc_value *av;
3472
3473                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3474                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3475
3476                         if (stcb) {
3477                                 av->assoc_value = stcb->asoc.prsctp_supported;
3478                                 SCTP_TCB_UNLOCK(stcb);
3479                         } else {
3480                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3481                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3482                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3483                                         SCTP_INP_RLOCK(inp);
3484                                         av->assoc_value = inp->prsctp_supported;
3485                                         SCTP_INP_RUNLOCK(inp);
3486                                 } else {
3487                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3488                                         error = EINVAL;
3489                                 }
3490                         }
3491                         if (error == 0) {
3492                                 *optsize = sizeof(struct sctp_assoc_value);
3493                         }
3494                         break;
3495                 }
3496         case SCTP_AUTH_SUPPORTED:
3497                 {
3498                         struct sctp_assoc_value *av;
3499
3500                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3501                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3502
3503                         if (stcb) {
3504                                 av->assoc_value = stcb->asoc.auth_supported;
3505                                 SCTP_TCB_UNLOCK(stcb);
3506                         } else {
3507                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3508                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3509                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3510                                         SCTP_INP_RLOCK(inp);
3511                                         av->assoc_value = inp->auth_supported;
3512                                         SCTP_INP_RUNLOCK(inp);
3513                                 } else {
3514                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3515                                         error = EINVAL;
3516                                 }
3517                         }
3518                         if (error == 0) {
3519                                 *optsize = sizeof(struct sctp_assoc_value);
3520                         }
3521                         break;
3522                 }
3523         case SCTP_ASCONF_SUPPORTED:
3524                 {
3525                         struct sctp_assoc_value *av;
3526
3527                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3528                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3529
3530                         if (stcb) {
3531                                 av->assoc_value = stcb->asoc.asconf_supported;
3532                                 SCTP_TCB_UNLOCK(stcb);
3533                         } else {
3534                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3535                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3536                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3537                                         SCTP_INP_RLOCK(inp);
3538                                         av->assoc_value = inp->asconf_supported;
3539                                         SCTP_INP_RUNLOCK(inp);
3540                                 } else {
3541                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3542                                         error = EINVAL;
3543                                 }
3544                         }
3545                         if (error == 0) {
3546                                 *optsize = sizeof(struct sctp_assoc_value);
3547                         }
3548                         break;
3549                 }
3550         case SCTP_RECONFIG_SUPPORTED:
3551                 {
3552                         struct sctp_assoc_value *av;
3553
3554                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3555                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3556
3557                         if (stcb) {
3558                                 av->assoc_value = stcb->asoc.reconfig_supported;
3559                                 SCTP_TCB_UNLOCK(stcb);
3560                         } else {
3561                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3562                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3563                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3564                                         SCTP_INP_RLOCK(inp);
3565                                         av->assoc_value = inp->reconfig_supported;
3566                                         SCTP_INP_RUNLOCK(inp);
3567                                 } else {
3568                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3569                                         error = EINVAL;
3570                                 }
3571                         }
3572                         if (error == 0) {
3573                                 *optsize = sizeof(struct sctp_assoc_value);
3574                         }
3575                         break;
3576                 }
3577         case SCTP_NRSACK_SUPPORTED:
3578                 {
3579                         struct sctp_assoc_value *av;
3580
3581                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3582                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3583
3584                         if (stcb) {
3585                                 av->assoc_value = stcb->asoc.nrsack_supported;
3586                                 SCTP_TCB_UNLOCK(stcb);
3587                         } else {
3588                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3589                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3590                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3591                                         SCTP_INP_RLOCK(inp);
3592                                         av->assoc_value = inp->nrsack_supported;
3593                                         SCTP_INP_RUNLOCK(inp);
3594                                 } else {
3595                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3596                                         error = EINVAL;
3597                                 }
3598                         }
3599                         if (error == 0) {
3600                                 *optsize = sizeof(struct sctp_assoc_value);
3601                         }
3602                         break;
3603                 }
3604         case SCTP_PKTDROP_SUPPORTED:
3605                 {
3606                         struct sctp_assoc_value *av;
3607
3608                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3609                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3610
3611                         if (stcb) {
3612                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3613                                 SCTP_TCB_UNLOCK(stcb);
3614                         } else {
3615                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3616                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3617                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3618                                         SCTP_INP_RLOCK(inp);
3619                                         av->assoc_value = inp->pktdrop_supported;
3620                                         SCTP_INP_RUNLOCK(inp);
3621                                 } else {
3622                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3623                                         error = EINVAL;
3624                                 }
3625                         }
3626                         if (error == 0) {
3627                                 *optsize = sizeof(struct sctp_assoc_value);
3628                         }
3629                         break;
3630                 }
3631         case SCTP_ENABLE_STREAM_RESET:
3632                 {
3633                         struct sctp_assoc_value *av;
3634
3635                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3636                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3637
3638                         if (stcb) {
3639                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3640                                 SCTP_TCB_UNLOCK(stcb);
3641                         } else {
3642                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3643                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3644                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3645                                         SCTP_INP_RLOCK(inp);
3646                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3647                                         SCTP_INP_RUNLOCK(inp);
3648                                 } else {
3649                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3650                                         error = EINVAL;
3651                                 }
3652                         }
3653                         if (error == 0) {
3654                                 *optsize = sizeof(struct sctp_assoc_value);
3655                         }
3656                         break;
3657                 }
3658         case SCTP_PR_STREAM_STATUS:
3659                 {
3660                         struct sctp_prstatus *sprstat;
3661                         uint16_t sid;
3662                         uint16_t policy;
3663
3664                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3665                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3666
3667                         sid = sprstat->sprstat_sid;
3668                         policy = sprstat->sprstat_policy;
3669 #if defined(SCTP_DETAILED_STR_STATS)
3670                         if ((stcb != NULL) &&
3671                             (sid < stcb->asoc.streamoutcnt) &&
3672                             (policy != SCTP_PR_SCTP_NONE) &&
3673                             ((policy <= SCTP_PR_SCTP_MAX) ||
3674                             (policy == SCTP_PR_SCTP_ALL))) {
3675                                 if (policy == SCTP_PR_SCTP_ALL) {
3676                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3677                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3678                                 } else {
3679                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3680                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3681                                 }
3682 #else
3683                         if ((stcb != NULL) &&
3684                             (sid < stcb->asoc.streamoutcnt) &&
3685                             (policy == SCTP_PR_SCTP_ALL)) {
3686                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3687                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3688 #endif
3689                                 SCTP_TCB_UNLOCK(stcb);
3690                                 *optsize = sizeof(struct sctp_prstatus);
3691                         } else {
3692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3693                                 error = EINVAL;
3694                         }
3695                         break;
3696                 }
3697         case SCTP_PR_ASSOC_STATUS:
3698                 {
3699                         struct sctp_prstatus *sprstat;
3700                         uint16_t policy;
3701
3702                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3703                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3704
3705                         policy = sprstat->sprstat_policy;
3706                         if ((stcb != NULL) &&
3707                             (policy != SCTP_PR_SCTP_NONE) &&
3708                             ((policy <= SCTP_PR_SCTP_MAX) ||
3709                             (policy == SCTP_PR_SCTP_ALL))) {
3710                                 if (policy == SCTP_PR_SCTP_ALL) {
3711                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3712                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3713                                 } else {
3714                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3715                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3716                                 }
3717                                 SCTP_TCB_UNLOCK(stcb);
3718                                 *optsize = sizeof(struct sctp_prstatus);
3719                         } else {
3720                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3721                                 error = EINVAL;
3722                         }
3723                         break;
3724                 }
3725         case SCTP_MAX_CWND:
3726                 {
3727                         struct sctp_assoc_value *av;
3728
3729                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3730                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3731
3732                         if (stcb) {
3733                                 av->assoc_value = stcb->asoc.max_cwnd;
3734                                 SCTP_TCB_UNLOCK(stcb);
3735                         } else {
3736                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3737                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3738                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3739                                         SCTP_INP_RLOCK(inp);
3740                                         av->assoc_value = inp->max_cwnd;
3741                                         SCTP_INP_RUNLOCK(inp);
3742                                 } else {
3743                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3744                                         error = EINVAL;
3745                                 }
3746                         }
3747                         if (error == 0) {
3748                                 *optsize = sizeof(struct sctp_assoc_value);
3749                         }
3750                         break;
3751                 }
3752         default:
3753                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3754                 error = ENOPROTOOPT;
3755                 break;
3756         }                       /* end switch (sopt->sopt_name) */
3757         if (error) {
3758                 *optsize = 0;
3759         }
3760         return (error);
3761 }
3762
3763 static int
3764 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3765     void *p)
3766 {
3767         int error, set_opt;
3768         uint32_t *mopt;
3769         struct sctp_tcb *stcb = NULL;
3770         struct sctp_inpcb *inp = NULL;
3771         uint32_t vrf_id;
3772
3773         if (optval == NULL) {
3774                 SCTP_PRINTF("optval is NULL\n");
3775                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3776                 return (EINVAL);
3777         }
3778         inp = (struct sctp_inpcb *)so->so_pcb;
3779         if (inp == NULL) {
3780                 SCTP_PRINTF("inp is NULL?\n");
3781                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3782                 return (EINVAL);
3783         }
3784         vrf_id = inp->def_vrf_id;
3785
3786         error = 0;
3787         switch (optname) {
3788         case SCTP_NODELAY:
3789         case SCTP_AUTOCLOSE:
3790         case SCTP_AUTO_ASCONF:
3791         case SCTP_EXPLICIT_EOR:
3792         case SCTP_DISABLE_FRAGMENTS:
3793         case SCTP_USE_EXT_RCVINFO:
3794         case SCTP_I_WANT_MAPPED_V4_ADDR:
3795                 /* copy in the option value */
3796                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3797                 set_opt = 0;
3798                 if (error)
3799                         break;
3800                 switch (optname) {
3801                 case SCTP_DISABLE_FRAGMENTS:
3802                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3803                         break;
3804                 case SCTP_AUTO_ASCONF:
3805                         /*
3806                          * NOTE: we don't really support this flag
3807                          */
3808                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3809                                 /* only valid for bound all sockets */
3810                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3811                                     (*mopt != 0)) {
3812                                         /* forbidden by admin */
3813                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3814                                         return (EPERM);
3815                                 }
3816                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3817                         } else {
3818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3819                                 return (EINVAL);
3820                         }
3821                         break;
3822                 case SCTP_EXPLICIT_EOR:
3823                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3824                         break;
3825                 case SCTP_USE_EXT_RCVINFO:
3826                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3827                         break;
3828                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3829                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3830                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3831                         } else {
3832                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3833                                 return (EINVAL);
3834                         }
3835                         break;
3836                 case SCTP_NODELAY:
3837                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3838                         break;
3839                 case SCTP_AUTOCLOSE:
3840                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3841                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3842                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3843                                 return (EINVAL);
3844                         }
3845                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3846                         /*
3847                          * The value is in ticks. Note this does not effect
3848                          * old associations, only new ones.
3849                          */
3850                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3851                         break;
3852                 }
3853                 SCTP_INP_WLOCK(inp);
3854                 if (*mopt != 0) {
3855                         sctp_feature_on(inp, set_opt);
3856                 } else {
3857                         sctp_feature_off(inp, set_opt);
3858                 }
3859                 SCTP_INP_WUNLOCK(inp);
3860                 break;
3861         case SCTP_REUSE_PORT:
3862                 {
3863                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3864                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3865                                 /* Can't set it after we are bound */
3866                                 error = EINVAL;
3867                                 break;
3868                         }
3869                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3870                                 /* Can't do this for a 1-m socket */
3871                                 error = EINVAL;
3872                                 break;
3873                         }
3874                         if (optval)
3875                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3876                         else
3877                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3878                         break;
3879                 }
3880         case SCTP_PARTIAL_DELIVERY_POINT:
3881                 {
3882                         uint32_t *value;
3883
3884                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3885                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3886                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3887                                 error = EINVAL;
3888                                 break;
3889                         }
3890                         inp->partial_delivery_point = *value;
3891                         break;
3892                 }
3893         case SCTP_FRAGMENT_INTERLEAVE:
3894                 /* not yet until we re-write sctp_recvmsg() */
3895                 {
3896                         uint32_t *level;
3897
3898                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3899                         if (*level == SCTP_FRAG_LEVEL_2) {
3900                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3901                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3902                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3903                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3904                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3905                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3906                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3907                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3908
3909                         } else {
3910                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3911                                 error = EINVAL;
3912                         }
3913                         break;
3914                 }
3915         case SCTP_INTERLEAVING_SUPPORTED:
3916                 {
3917                         struct sctp_assoc_value *av;
3918
3919                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3920                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3921
3922                         if (stcb) {
3923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3924                                 error = EINVAL;
3925                                 SCTP_TCB_UNLOCK(stcb);
3926                         } else {
3927                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3928                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3929                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3930                                         SCTP_INP_WLOCK(inp);
3931                                         if (av->assoc_value == 0) {
3932                                                 inp->idata_supported = 0;
3933                                         } else {
3934                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3935                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3936                                                         inp->idata_supported = 1;
3937                                                 } else {
3938                                                         /*
3939                                                          * Must have Frag
3940                                                          * interleave and
3941                                                          * stream interleave
3942                                                          * on
3943                                                          */
3944                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3945                                                         error = EINVAL;
3946                                                 }
3947                                         }
3948                                         SCTP_INP_WUNLOCK(inp);
3949                                 } else {
3950                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3951                                         error = EINVAL;
3952                                 }
3953                         }
3954                         break;
3955                 }
3956         case SCTP_CMT_ON_OFF:
3957                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3958                         struct sctp_assoc_value *av;
3959
3960                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3961                         if (av->assoc_value > SCTP_CMT_MAX) {
3962                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3963                                 error = EINVAL;
3964                                 break;
3965                         }
3966                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3967                         if (stcb) {
3968                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3969                                 SCTP_TCB_UNLOCK(stcb);
3970                         } else {
3971                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3972                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3973                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3974                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3975                                         SCTP_INP_WLOCK(inp);
3976                                         inp->sctp_cmt_on_off = av->assoc_value;
3977                                         SCTP_INP_WUNLOCK(inp);
3978                                 }
3979                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3980                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3981                                         SCTP_INP_RLOCK(inp);
3982                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3983                                                 SCTP_TCB_LOCK(stcb);
3984                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3985                                                 SCTP_TCB_UNLOCK(stcb);
3986                                         }
3987                                         SCTP_INP_RUNLOCK(inp);
3988                                 }
3989                         }
3990                 } else {
3991                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3992                         error = ENOPROTOOPT;
3993                 }
3994                 break;
3995         case SCTP_PLUGGABLE_CC:
3996                 {
3997                         struct sctp_assoc_value *av;
3998                         struct sctp_nets *net;
3999
4000                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4001                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
4002                             (av->assoc_value != SCTP_CC_HSTCP) &&
4003                             (av->assoc_value != SCTP_CC_HTCP) &&
4004                             (av->assoc_value != SCTP_CC_RTCC)) {
4005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4006                                 error = EINVAL;
4007                                 break;
4008                         }
4009                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4010                         if (stcb) {
4011                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4012                                 stcb->asoc.congestion_control_module = av->assoc_value;
4013                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4014                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4015                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4016                                         }
4017                                 }
4018                                 SCTP_TCB_UNLOCK(stcb);
4019                         } else {
4020                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4021                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4022                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4023                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4024                                         SCTP_INP_WLOCK(inp);
4025                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4026                                         SCTP_INP_WUNLOCK(inp);
4027                                 }
4028                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4029                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4030                                         SCTP_INP_RLOCK(inp);
4031                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4032                                                 SCTP_TCB_LOCK(stcb);
4033                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4034                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4035                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4036                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4037                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4038                                                         }
4039                                                 }
4040                                                 SCTP_TCB_UNLOCK(stcb);
4041                                         }
4042                                         SCTP_INP_RUNLOCK(inp);
4043                                 }
4044                         }
4045                         break;
4046                 }
4047         case SCTP_CC_OPTION:
4048                 {
4049                         struct sctp_cc_option *cc_opt;
4050
4051                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4052                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4053                         if (stcb == NULL) {
4054                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4055                                         SCTP_INP_RLOCK(inp);
4056                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4057                                                 SCTP_TCB_LOCK(stcb);
4058                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4059                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4060                                                 }
4061                                                 SCTP_TCB_UNLOCK(stcb);
4062                                         }
4063                                         SCTP_INP_RUNLOCK(inp);
4064                                 } else {
4065                                         error = EINVAL;
4066                                 }
4067                         } else {
4068                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4069                                         error = ENOTSUP;
4070                                 } else {
4071                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4072                                             cc_opt);
4073                                 }
4074                                 SCTP_TCB_UNLOCK(stcb);
4075                         }
4076                         break;
4077                 }
4078         case SCTP_PLUGGABLE_SS:
4079                 {
4080                         struct sctp_assoc_value *av;
4081
4082                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4083                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4084                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4085                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4086                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4087                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4088                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4089                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4090                                 error = EINVAL;
4091                                 break;
4092                         }
4093                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4094                         if (stcb) {
4095                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4096                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4097                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4098                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4099                                 SCTP_TCB_UNLOCK(stcb);
4100                         } else {
4101                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4102                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4103                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4104                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4105                                         SCTP_INP_WLOCK(inp);
4106                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4107                                         SCTP_INP_WUNLOCK(inp);
4108                                 }
4109                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4110                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4111                                         SCTP_INP_RLOCK(inp);
4112                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4113                                                 SCTP_TCB_LOCK(stcb);
4114                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4115                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4116                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4117                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4118                                                 SCTP_TCB_UNLOCK(stcb);
4119                                         }
4120                                         SCTP_INP_RUNLOCK(inp);
4121                                 }
4122                         }
4123                         break;
4124                 }
4125         case SCTP_SS_VALUE:
4126                 {
4127                         struct sctp_stream_value *av;
4128
4129                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4130                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4131                         if (stcb) {
4132                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4133                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4134                                     av->stream_value) < 0)) {
4135                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4136                                         error = EINVAL;
4137                                 }
4138                                 SCTP_TCB_UNLOCK(stcb);
4139                         } else {
4140                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4141                                         SCTP_INP_RLOCK(inp);
4142                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4143                                                 SCTP_TCB_LOCK(stcb);
4144                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4145                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4146                                                             &stcb->asoc,
4147                                                             &stcb->asoc.strmout[av->stream_id],
4148                                                             av->stream_value);
4149                                                 }
4150                                                 SCTP_TCB_UNLOCK(stcb);
4151                                         }
4152                                         SCTP_INP_RUNLOCK(inp);
4153                                 } else {
4154                                         /*
4155                                          * Can't set stream value without
4156                                          * association
4157                                          */
4158                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4159                                         error = EINVAL;
4160                                 }
4161                         }
4162                         break;
4163                 }
4164         case SCTP_CLR_STAT_LOG:
4165                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4166                 error = EOPNOTSUPP;
4167                 break;
4168         case SCTP_CONTEXT:
4169                 {
4170                         struct sctp_assoc_value *av;
4171
4172                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4173                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4174
4175                         if (stcb) {
4176                                 stcb->asoc.context = av->assoc_value;
4177                                 SCTP_TCB_UNLOCK(stcb);
4178                         } else {
4179                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4180                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4181                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4182                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4183                                         SCTP_INP_WLOCK(inp);
4184                                         inp->sctp_context = av->assoc_value;
4185                                         SCTP_INP_WUNLOCK(inp);
4186                                 }
4187                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4188                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4189                                         SCTP_INP_RLOCK(inp);
4190                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4191                                                 SCTP_TCB_LOCK(stcb);
4192                                                 stcb->asoc.context = av->assoc_value;
4193                                                 SCTP_TCB_UNLOCK(stcb);
4194                                         }
4195                                         SCTP_INP_RUNLOCK(inp);
4196                                 }
4197                         }
4198                         break;
4199                 }
4200         case SCTP_VRF_ID:
4201                 {
4202                         uint32_t *default_vrfid;
4203
4204                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4205                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4206                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4207                                 error = EINVAL;
4208                                 break;
4209                         }
4210                         inp->def_vrf_id = *default_vrfid;
4211                         break;
4212                 }
4213         case SCTP_DEL_VRF_ID:
4214                 {
4215                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4216                         error = EOPNOTSUPP;
4217                         break;
4218                 }
4219         case SCTP_ADD_VRF_ID:
4220                 {
4221                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4222                         error = EOPNOTSUPP;
4223                         break;
4224                 }
4225         case SCTP_DELAYED_SACK:
4226                 {
4227                         struct sctp_sack_info *sack;
4228
4229                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4230                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4231                         if (sack->sack_delay) {
4232                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4233                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4234                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4235                                         sack->sack_delay = TICKS_TO_MSEC(1);
4236                                 }
4237                         }
4238                         if (stcb) {
4239                                 if (sack->sack_delay) {
4240                                         stcb->asoc.delayed_ack = sack->sack_delay;
4241                                 }
4242                                 if (sack->sack_freq) {
4243                                         stcb->asoc.sack_freq = sack->sack_freq;
4244                                 }
4245                                 SCTP_TCB_UNLOCK(stcb);
4246                         } else {
4247                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4248                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4249                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4250                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4251                                         SCTP_INP_WLOCK(inp);
4252                                         if (sack->sack_delay) {
4253                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4254                                         }
4255                                         if (sack->sack_freq) {
4256                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4257                                         }
4258                                         SCTP_INP_WUNLOCK(inp);
4259                                 }
4260                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4261                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4262                                         SCTP_INP_RLOCK(inp);
4263                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4264                                                 SCTP_TCB_LOCK(stcb);
4265                                                 if (sack->sack_delay) {
4266                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4267                                                 }
4268                                                 if (sack->sack_freq) {
4269                                                         stcb->asoc.sack_freq = sack->sack_freq;
4270                                                 }
4271                                                 SCTP_TCB_UNLOCK(stcb);
4272                                         }
4273                                         SCTP_INP_RUNLOCK(inp);
4274                                 }
4275                         }
4276                         break;
4277                 }
4278         case SCTP_AUTH_CHUNK:
4279                 {
4280                         struct sctp_authchunk *sauth;
4281
4282                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4283
4284                         SCTP_INP_WLOCK(inp);
4285                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4286                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4287                                 error = EINVAL;
4288                         }
4289                         SCTP_INP_WUNLOCK(inp);
4290                         break;
4291                 }
4292         case SCTP_AUTH_KEY:
4293                 {
4294                         struct sctp_authkey *sca;
4295                         struct sctp_keyhead *shared_keys;
4296                         sctp_sharedkey_t *shared_key;
4297                         sctp_key_t *key = NULL;
4298                         size_t size;
4299
4300                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4301                         if (sca->sca_keylength == 0) {
4302                                 size = optsize - sizeof(struct sctp_authkey);
4303                         } else {
4304                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4305                                         size = sca->sca_keylength;
4306                                 } else {
4307                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4308                                         error = EINVAL;
4309                                         break;
4310                                 }
4311                         }
4312                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4313
4314                         if (stcb) {
4315                                 shared_keys = &stcb->asoc.shared_keys;
4316                                 /* clear the cached keys for this key id */
4317                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4318                                 /*
4319                                  * create the new shared key and
4320                                  * insert/replace it
4321                                  */
4322                                 if (size > 0) {
4323                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4324                                         if (key == NULL) {
4325                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4326                                                 error = ENOMEM;
4327                                                 SCTP_TCB_UNLOCK(stcb);
4328                                                 break;
4329                                         }
4330                                 }
4331                                 shared_key = sctp_alloc_sharedkey();
4332                                 if (shared_key == NULL) {
4333                                         sctp_free_key(key);
4334                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4335                                         error = ENOMEM;
4336                                         SCTP_TCB_UNLOCK(stcb);
4337                                         break;
4338                                 }
4339                                 shared_key->key = key;
4340                                 shared_key->keyid = sca->sca_keynumber;
4341                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4342                                 SCTP_TCB_UNLOCK(stcb);
4343                         } else {
4344                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4345                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4346                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4347                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4348                                         SCTP_INP_WLOCK(inp);
4349                                         shared_keys = &inp->sctp_ep.shared_keys;
4350                                         /*
4351                                          * clear the cached keys on all
4352                                          * assocs for this key id
4353                                          */
4354                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4355                                         /*
4356                                          * create the new shared key and
4357                                          * insert/replace it
4358                                          */
4359                                         if (size > 0) {
4360                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4361                                                 if (key == NULL) {
4362                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4363                                                         error = ENOMEM;
4364                                                         SCTP_INP_WUNLOCK(inp);
4365                                                         break;
4366                                                 }
4367                                         }
4368                                         shared_key = sctp_alloc_sharedkey();
4369                                         if (shared_key == NULL) {
4370                                                 sctp_free_key(key);
4371                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4372                                                 error = ENOMEM;
4373                                                 SCTP_INP_WUNLOCK(inp);
4374                                                 break;
4375                                         }
4376                                         shared_key->key = key;
4377                                         shared_key->keyid = sca->sca_keynumber;
4378                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4379                                         SCTP_INP_WUNLOCK(inp);
4380                                 }
4381                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4382                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4383                                         SCTP_INP_RLOCK(inp);
4384                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4385                                                 SCTP_TCB_LOCK(stcb);
4386                                                 shared_keys = &stcb->asoc.shared_keys;
4387                                                 /*
4388                                                  * clear the cached keys for
4389                                                  * this key id
4390                                                  */
4391                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4392                                                 /*
4393                                                  * create the new shared key
4394                                                  * and insert/replace it
4395                                                  */
4396                                                 if (size > 0) {
4397                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4398                                                         if (key == NULL) {
4399                                                                 SCTP_TCB_UNLOCK(stcb);
4400                                                                 continue;
4401                                                         }
4402                                                 }
4403                                                 shared_key = sctp_alloc_sharedkey();
4404                                                 if (shared_key == NULL) {
4405                                                         sctp_free_key(key);
4406                                                         SCTP_TCB_UNLOCK(stcb);
4407                                                         continue;
4408                                                 }
4409                                                 shared_key->key = key;
4410                                                 shared_key->keyid = sca->sca_keynumber;
4411                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4412                                                 SCTP_TCB_UNLOCK(stcb);
4413                                         }
4414                                         SCTP_INP_RUNLOCK(inp);
4415                                 }
4416                         }
4417                         break;
4418                 }
4419         case SCTP_HMAC_IDENT:
4420                 {
4421                         struct sctp_hmacalgo *shmac;
4422                         sctp_hmaclist_t *hmaclist;
4423                         uint16_t hmacid;
4424                         uint32_t i;
4425
4426                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4427                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4428                             (shmac->shmac_number_of_idents > 0xffff)) {
4429                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4430                                 error = EINVAL;
4431                                 break;
4432                         }
4433                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4434                         if (hmaclist == NULL) {
4435                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4436                                 error = ENOMEM;
4437                                 break;
4438                         }
4439                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4440                                 hmacid = shmac->shmac_idents[i];
4441                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4442                                          /* invalid HMACs were found */ ;
4443                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4444                                         error = EINVAL;
4445                                         sctp_free_hmaclist(hmaclist);
4446                                         goto sctp_set_hmac_done;
4447                                 }
4448                         }
4449                         for (i = 0; i < hmaclist->num_algo; i++) {
4450                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4451                                         /* already in list */
4452                                         break;
4453                                 }
4454                         }
4455                         if (i == hmaclist->num_algo) {
4456                                 /* not found in list */
4457                                 sctp_free_hmaclist(hmaclist);
4458                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4459                                 error = EINVAL;
4460                                 break;
4461                         }
4462                         /* set it on the endpoint */
4463                         SCTP_INP_WLOCK(inp);
4464                         if (inp->sctp_ep.local_hmacs)
4465                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4466                         inp->sctp_ep.local_hmacs = hmaclist;
4467                         SCTP_INP_WUNLOCK(inp);
4468         sctp_set_hmac_done:
4469                         break;
4470                 }
4471         case SCTP_AUTH_ACTIVE_KEY:
4472                 {
4473                         struct sctp_authkeyid *scact;
4474
4475                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4476                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4477
4478                         /* set the active key on the right place */
4479                         if (stcb) {
4480                                 /* set the active key on the assoc */
4481                                 if (sctp_auth_setactivekey(stcb,
4482                                     scact->scact_keynumber)) {
4483                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4484                                             SCTP_FROM_SCTP_USRREQ,
4485                                             EINVAL);
4486                                         error = EINVAL;
4487                                 }
4488                                 SCTP_TCB_UNLOCK(stcb);
4489                         } else {
4490                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4491                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4492                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4493                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4494                                         SCTP_INP_WLOCK(inp);
4495                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4496                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4497                                                 error = EINVAL;
4498                                         }
4499                                         SCTP_INP_WUNLOCK(inp);
4500                                 }
4501                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4502                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4503                                         SCTP_INP_RLOCK(inp);
4504                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4505                                                 SCTP_TCB_LOCK(stcb);
4506                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4507                                                 SCTP_TCB_UNLOCK(stcb);
4508                                         }
4509                                         SCTP_INP_RUNLOCK(inp);
4510                                 }
4511                         }
4512                         break;
4513                 }
4514         case SCTP_AUTH_DELETE_KEY:
4515                 {
4516                         struct sctp_authkeyid *scdel;
4517
4518                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4519                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4520
4521                         /* delete the key from the right place */
4522                         if (stcb) {
4523                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4524                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4525                                         error = EINVAL;
4526                                 }
4527                                 SCTP_TCB_UNLOCK(stcb);
4528                         } else {
4529                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4530                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4531                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4532                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4533                                         SCTP_INP_WLOCK(inp);
4534                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4535                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4536                                                 error = EINVAL;
4537                                         }
4538                                         SCTP_INP_WUNLOCK(inp);
4539                                 }
4540                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4541                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4542                                         SCTP_INP_RLOCK(inp);
4543                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4544                                                 SCTP_TCB_LOCK(stcb);
4545                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4546                                                 SCTP_TCB_UNLOCK(stcb);
4547                                         }
4548                                         SCTP_INP_RUNLOCK(inp);
4549                                 }
4550                         }
4551                         break;
4552                 }
4553         case SCTP_AUTH_DEACTIVATE_KEY:
4554                 {
4555                         struct sctp_authkeyid *keyid;
4556
4557                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4558                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4559
4560                         /* deactivate the key from the right place */
4561                         if (stcb) {
4562                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4563                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4564                                         error = EINVAL;
4565                                 }
4566                                 SCTP_TCB_UNLOCK(stcb);
4567                         } else {
4568                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4569                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4570                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4571                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4572                                         SCTP_INP_WLOCK(inp);
4573                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4574                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4575                                                 error = EINVAL;
4576                                         }
4577                                         SCTP_INP_WUNLOCK(inp);
4578                                 }
4579                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4580                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4581                                         SCTP_INP_RLOCK(inp);
4582                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4583                                                 SCTP_TCB_LOCK(stcb);
4584                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4585                                                 SCTP_TCB_UNLOCK(stcb);
4586                                         }
4587                                         SCTP_INP_RUNLOCK(inp);
4588                                 }
4589                         }
4590                         break;
4591                 }
4592         case SCTP_ENABLE_STREAM_RESET:
4593                 {
4594                         struct sctp_assoc_value *av;
4595
4596                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4597                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4598                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4599                                 error = EINVAL;
4600                                 break;
4601                         }
4602                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4603                         if (stcb) {
4604                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4605                                 SCTP_TCB_UNLOCK(stcb);
4606                         } else {
4607                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4608                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4609                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4610                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4611                                         SCTP_INP_WLOCK(inp);
4612                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4613                                         SCTP_INP_WUNLOCK(inp);
4614                                 }
4615                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4616                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4617                                         SCTP_INP_RLOCK(inp);
4618                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4619                                                 SCTP_TCB_LOCK(stcb);
4620                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4621                                                 SCTP_TCB_UNLOCK(stcb);
4622                                         }
4623                                         SCTP_INP_RUNLOCK(inp);
4624                                 }
4625                         }
4626                         break;
4627                 }
4628         case SCTP_RESET_STREAMS:
4629                 {
4630                         struct sctp_reset_streams *strrst;
4631                         int i, send_out = 0;
4632                         int send_in = 0;
4633
4634                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4635                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4636                         if (stcb == NULL) {
4637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4638                                 error = ENOENT;
4639                                 break;
4640                         }
4641                         if (stcb->asoc.reconfig_supported == 0) {
4642                                 /*
4643                                  * Peer does not support the chunk type.
4644                                  */
4645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4646                                 error = EOPNOTSUPP;
4647                                 SCTP_TCB_UNLOCK(stcb);
4648                                 break;
4649                         }
4650                         if (sizeof(struct sctp_reset_streams) +
4651                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4652                                 error = EINVAL;
4653                                 SCTP_TCB_UNLOCK(stcb);
4654                                 break;
4655                         }
4656                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4657                                 send_in = 1;
4658                                 if (stcb->asoc.stream_reset_outstanding) {
4659                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4660                                         error = EALREADY;
4661                                         SCTP_TCB_UNLOCK(stcb);
4662                                         break;
4663                                 }
4664                         }
4665                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4666                                 send_out = 1;
4667                         }
4668                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4669                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4670                                 error = ENOMEM;
4671                                 SCTP_TCB_UNLOCK(stcb);
4672                                 break;
4673                         }
4674                         if ((send_in == 0) && (send_out == 0)) {
4675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4676                                 error = EINVAL;
4677                                 SCTP_TCB_UNLOCK(stcb);
4678                                 break;
4679                         }
4680                         for (i = 0; i < strrst->srs_number_streams; i++) {
4681                                 if ((send_in) &&
4682                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4683                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4684                                         error = EINVAL;
4685                                         break;
4686                                 }
4687                                 if ((send_out) &&
4688                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4689                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4690                                         error = EINVAL;
4691                                         break;
4692                                 }
4693                         }
4694                         if (error) {
4695                                 SCTP_TCB_UNLOCK(stcb);
4696                                 break;
4697                         }
4698                         if (send_out) {
4699                                 int cnt;
4700                                 uint16_t strm;
4701
4702                                 if (strrst->srs_number_streams) {
4703                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4704                                                 strm = strrst->srs_stream_list[i];
4705                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4706                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4707                                                         cnt++;
4708                                                 }
4709                                         }
4710                                 } else {
4711                                         /* Its all */
4712                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4713                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4714                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4715                                                         cnt++;
4716                                                 }
4717                                         }
4718                                 }
4719                         }
4720                         if (send_in) {
4721                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4722                                     strrst->srs_stream_list,
4723                                     send_in, 0, 0, 0, 0, 0);
4724                         } else {
4725                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4726                         }
4727                         if (error == 0) {
4728                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4729                         } else {
4730                                 /*
4731                                  * For outgoing streams don't report any
4732                                  * problems in sending the request to the
4733                                  * application. XXX: Double check resetting
4734                                  * incoming streams.
4735                                  */
4736                                 error = 0;
4737                         }
4738                         SCTP_TCB_UNLOCK(stcb);
4739                         break;
4740                 }
4741         case SCTP_ADD_STREAMS:
4742                 {
4743                         struct sctp_add_streams *stradd;
4744                         uint8_t addstream = 0;
4745                         uint16_t add_o_strmcnt = 0;
4746                         uint16_t add_i_strmcnt = 0;
4747
4748                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4749                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4750                         if (stcb == NULL) {
4751                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4752                                 error = ENOENT;
4753                                 break;
4754                         }
4755                         if (stcb->asoc.reconfig_supported == 0) {
4756                                 /*
4757                                  * Peer does not support the chunk type.
4758                                  */
4759                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4760                                 error = EOPNOTSUPP;
4761                                 SCTP_TCB_UNLOCK(stcb);
4762                                 break;
4763                         }
4764                         if (stcb->asoc.stream_reset_outstanding) {
4765                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4766                                 error = EALREADY;
4767                                 SCTP_TCB_UNLOCK(stcb);
4768                                 break;
4769                         }
4770                         if ((stradd->sas_outstrms == 0) &&
4771                             (stradd->sas_instrms == 0)) {
4772                                 error = EINVAL;
4773                                 goto skip_stuff;
4774                         }
4775                         if (stradd->sas_outstrms) {
4776                                 addstream = 1;
4777                                 /* We allocate here */
4778                                 add_o_strmcnt = stradd->sas_outstrms;
4779                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4780                                         /* You can't have more than 64k */
4781                                         error = EINVAL;
4782                                         goto skip_stuff;
4783                                 }
4784                         }
4785                         if (stradd->sas_instrms) {
4786                                 int cnt;
4787
4788                                 addstream |= 2;
4789                                 /*
4790                                  * We allocate inside
4791                                  * sctp_send_str_reset_req()
4792                                  */
4793                                 add_i_strmcnt = stradd->sas_instrms;
4794                                 cnt = add_i_strmcnt;
4795                                 cnt += stcb->asoc.streamincnt;
4796                                 if (cnt > 0x0000ffff) {
4797                                         /* You can't have more than 64k */
4798                                         error = EINVAL;
4799                                         goto skip_stuff;
4800                                 }
4801                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4802                                         /* More than you are allowed */
4803                                         error = EINVAL;
4804                                         goto skip_stuff;
4805                                 }
4806                         }
4807                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4808                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4809         skip_stuff:
4810                         SCTP_TCB_UNLOCK(stcb);
4811                         break;
4812                 }
4813         case SCTP_RESET_ASSOC:
4814                 {
4815                         int i;
4816                         uint32_t *value;
4817
4818                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4819                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4820                         if (stcb == NULL) {
4821                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4822                                 error = ENOENT;
4823                                 break;
4824                         }
4825                         if (stcb->asoc.reconfig_supported == 0) {
4826                                 /*
4827                                  * Peer does not support the chunk type.
4828                                  */
4829                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4830                                 error = EOPNOTSUPP;
4831                                 SCTP_TCB_UNLOCK(stcb);
4832                                 break;
4833                         }
4834                         if (stcb->asoc.stream_reset_outstanding) {
4835                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4836                                 error = EALREADY;
4837                                 SCTP_TCB_UNLOCK(stcb);
4838                                 break;
4839                         }
4840                         /*
4841                          * Is there any data pending in the send or sent
4842                          * queues?
4843                          */
4844                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4845                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4846                 busy_out:
4847                                 error = EBUSY;
4848                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4849                                 SCTP_TCB_UNLOCK(stcb);
4850                                 break;
4851                         }
4852                         /* Do any streams have data queued? */
4853                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4854                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4855                                         goto busy_out;
4856                                 }
4857                         }
4858                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4859                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4860                         SCTP_TCB_UNLOCK(stcb);
4861                         break;
4862                 }
4863         case SCTP_CONNECT_X:
4864                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4865                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4866                         error = EINVAL;
4867                         break;
4868                 }
4869                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4870                 break;
4871         case SCTP_CONNECT_X_DELAYED:
4872                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4873                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4874                         error = EINVAL;
4875                         break;
4876                 }
4877                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4878                 break;
4879         case SCTP_CONNECT_X_COMPLETE:
4880                 {
4881                         struct sockaddr *sa;
4882
4883                         /* FIXME MT: check correct? */
4884                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4885
4886                         /* find tcb */
4887                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4888                                 SCTP_INP_RLOCK(inp);
4889                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4890                                 if (stcb) {
4891                                         SCTP_TCB_LOCK(stcb);
4892                                 }
4893                                 SCTP_INP_RUNLOCK(inp);
4894                         } else {
4895                                 /*
4896                                  * We increment here since
4897                                  * sctp_findassociation_ep_addr() wil do a
4898                                  * decrement if it finds the stcb as long as
4899                                  * the locked tcb (last argument) is NOT a
4900                                  * TCB.. aka NULL.
4901                                  */
4902                                 SCTP_INP_INCR_REF(inp);
4903                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4904                                 if (stcb == NULL) {
4905                                         SCTP_INP_DECR_REF(inp);
4906                                 }
4907                         }
4908
4909                         if (stcb == NULL) {
4910                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4911                                 error = ENOENT;
4912                                 break;
4913                         }
4914                         if (stcb->asoc.delayed_connection == 1) {
4915                                 stcb->asoc.delayed_connection = 0;
4916                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4917                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4918                                     stcb->asoc.primary_destination,
4919                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4920                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4921                         } else {
4922                                 /*
4923                                  * already expired or did not use delayed
4924                                  * connectx
4925                                  */
4926                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4927                                 error = EALREADY;
4928                         }
4929                         SCTP_TCB_UNLOCK(stcb);
4930                         break;
4931                 }
4932         case SCTP_MAX_BURST:
4933                 {
4934                         struct sctp_assoc_value *av;
4935
4936                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4937                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4938
4939                         if (stcb) {
4940                                 stcb->asoc.max_burst = av->assoc_value;
4941                                 SCTP_TCB_UNLOCK(stcb);
4942                         } else {
4943                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4944                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4945                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4946                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4947                                         SCTP_INP_WLOCK(inp);
4948                                         inp->sctp_ep.max_burst = av->assoc_value;
4949                                         SCTP_INP_WUNLOCK(inp);
4950                                 }
4951                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4952                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4953                                         SCTP_INP_RLOCK(inp);
4954                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4955                                                 SCTP_TCB_LOCK(stcb);
4956                                                 stcb->asoc.max_burst = av->assoc_value;
4957                                                 SCTP_TCB_UNLOCK(stcb);
4958                                         }
4959                                         SCTP_INP_RUNLOCK(inp);
4960                                 }
4961                         }
4962                         break;
4963                 }
4964         case SCTP_MAXSEG:
4965                 {
4966                         struct sctp_assoc_value *av;
4967                         int ovh;
4968
4969                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4970                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4971
4972                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4973                                 ovh = SCTP_MED_OVERHEAD;
4974                         } else {
4975                                 ovh = SCTP_MED_V4_OVERHEAD;
4976                         }
4977                         if (stcb) {
4978                                 if (av->assoc_value) {
4979                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4980                                 } else {
4981                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4982                                 }
4983                                 SCTP_TCB_UNLOCK(stcb);
4984                         } else {
4985                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4986                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4987                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4988                                         SCTP_INP_WLOCK(inp);
4989                                         /*
4990                                          * FIXME MT: I think this is not in
4991                                          * tune with the API ID
4992                                          */
4993                                         if (av->assoc_value) {
4994                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4995                                         } else {
4996                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4997                                         }
4998                                         SCTP_INP_WUNLOCK(inp);
4999                                 } else {
5000                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5001                                         error = EINVAL;
5002                                 }
5003                         }
5004                         break;
5005                 }
5006         case SCTP_EVENTS:
5007                 {
5008                         struct sctp_event_subscribe *events;
5009
5010                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5011
5012                         SCTP_INP_WLOCK(inp);
5013                         if (events->sctp_data_io_event) {
5014                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5015                         } else {
5016                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5017                         }
5018
5019                         if (events->sctp_association_event) {
5020                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5021                         } else {
5022                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5023                         }
5024
5025                         if (events->sctp_address_event) {
5026                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5027                         } else {
5028                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5029                         }
5030
5031                         if (events->sctp_send_failure_event) {
5032                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5033                         } else {
5034                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5035                         }
5036
5037                         if (events->sctp_peer_error_event) {
5038                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5039                         } else {
5040                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5041                         }
5042
5043                         if (events->sctp_shutdown_event) {
5044                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5045                         } else {
5046                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5047                         }
5048
5049                         if (events->sctp_partial_delivery_event) {
5050                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5051                         } else {
5052                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5053                         }
5054
5055                         if (events->sctp_adaptation_layer_event) {
5056                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5057                         } else {
5058                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5059                         }
5060
5061                         if (events->sctp_authentication_event) {
5062                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5063                         } else {
5064                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5065                         }
5066
5067                         if (events->sctp_sender_dry_event) {
5068                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5069                         } else {
5070                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5071                         }
5072
5073                         if (events->sctp_stream_reset_event) {
5074                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5075                         } else {
5076                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5077                         }
5078                         SCTP_INP_WUNLOCK(inp);
5079
5080                         SCTP_INP_RLOCK(inp);
5081                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5082                                 SCTP_TCB_LOCK(stcb);
5083                                 if (events->sctp_association_event) {
5084                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5085                                 } else {
5086                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5087                                 }
5088                                 if (events->sctp_address_event) {
5089                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5090                                 } else {
5091                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5092                                 }
5093                                 if (events->sctp_send_failure_event) {
5094                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5095                                 } else {
5096                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5097                                 }
5098                                 if (events->sctp_peer_error_event) {
5099                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5100                                 } else {
5101                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5102                                 }
5103                                 if (events->sctp_shutdown_event) {
5104                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5105                                 } else {
5106                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5107                                 }
5108                                 if (events->sctp_partial_delivery_event) {
5109                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5110                                 } else {
5111                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5112                                 }
5113                                 if (events->sctp_adaptation_layer_event) {
5114                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5115                                 } else {
5116                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5117                                 }
5118                                 if (events->sctp_authentication_event) {
5119                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5120                                 } else {
5121                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5122                                 }
5123                                 if (events->sctp_sender_dry_event) {
5124                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5125                                 } else {
5126                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5127                                 }
5128                                 if (events->sctp_stream_reset_event) {
5129                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5130                                 } else {
5131                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5132                                 }
5133                                 SCTP_TCB_UNLOCK(stcb);
5134                         }
5135                         /*
5136                          * Send up the sender dry event only for 1-to-1
5137                          * style sockets.
5138                          */
5139                         if (events->sctp_sender_dry_event) {
5140                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5141                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5142                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5143                                         if (stcb) {
5144                                                 SCTP_TCB_LOCK(stcb);
5145                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5146                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5147                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5148                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5149                                                 }
5150                                                 SCTP_TCB_UNLOCK(stcb);
5151                                         }
5152                                 }
5153                         }
5154                         SCTP_INP_RUNLOCK(inp);
5155                         break;
5156                 }
5157         case SCTP_ADAPTATION_LAYER:
5158                 {
5159                         struct sctp_setadaptation *adap_bits;
5160
5161                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5162                         SCTP_INP_WLOCK(inp);
5163                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5164                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5165                         SCTP_INP_WUNLOCK(inp);
5166                         break;
5167                 }
5168 #ifdef SCTP_DEBUG
5169         case SCTP_SET_INITIAL_DBG_SEQ:
5170                 {
5171                         uint32_t *vvv;
5172
5173                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5174                         SCTP_INP_WLOCK(inp);
5175                         inp->sctp_ep.initial_sequence_debug = *vvv;
5176                         SCTP_INP_WUNLOCK(inp);
5177                         break;
5178                 }
5179 #endif
5180         case SCTP_DEFAULT_SEND_PARAM:
5181                 {
5182                         struct sctp_sndrcvinfo *s_info;
5183
5184                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5185                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5186
5187                         if (stcb) {
5188                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5189                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5190                                 } else {
5191                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5192                                         error = EINVAL;
5193                                 }
5194                                 SCTP_TCB_UNLOCK(stcb);
5195                         } else {
5196                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5197                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5198                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5199                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5200                                         SCTP_INP_WLOCK(inp);
5201                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5202                                         SCTP_INP_WUNLOCK(inp);
5203                                 }
5204                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5205                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5206                                         SCTP_INP_RLOCK(inp);
5207                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5208                                                 SCTP_TCB_LOCK(stcb);
5209                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5210                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5211                                                 }
5212                                                 SCTP_TCB_UNLOCK(stcb);
5213                                         }
5214                                         SCTP_INP_RUNLOCK(inp);
5215                                 }
5216                         }
5217                         break;
5218                 }
5219         case SCTP_PEER_ADDR_PARAMS:
5220                 {
5221                         struct sctp_paddrparams *paddrp;
5222                         struct sctp_nets *net;
5223                         struct sockaddr *addr;
5224
5225 #if defined(INET) && defined(INET6)
5226                         struct sockaddr_in sin_store;
5227
5228 #endif
5229
5230                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5231                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5232
5233 #if defined(INET) && defined(INET6)
5234                         if (paddrp->spp_address.ss_family == AF_INET6) {
5235                                 struct sockaddr_in6 *sin6;
5236
5237                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5238                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5239                                         in6_sin6_2_sin(&sin_store, sin6);
5240                                         addr = (struct sockaddr *)&sin_store;
5241                                 } else {
5242                                         addr = (struct sockaddr *)&paddrp->spp_address;
5243                                 }
5244                         } else {
5245                                 addr = (struct sockaddr *)&paddrp->spp_address;
5246                         }
5247 #else
5248                         addr = (struct sockaddr *)&paddrp->spp_address;
5249 #endif
5250                         if (stcb != NULL) {
5251                                 net = sctp_findnet(stcb, addr);
5252                         } else {
5253                                 /*
5254                                  * We increment here since
5255                                  * sctp_findassociation_ep_addr() wil do a
5256                                  * decrement if it finds the stcb as long as
5257                                  * the locked tcb (last argument) is NOT a
5258                                  * TCB.. aka NULL.
5259                                  */
5260                                 net = NULL;
5261                                 SCTP_INP_INCR_REF(inp);
5262                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5263                                     &net, NULL, NULL);
5264                                 if (stcb == NULL) {
5265                                         SCTP_INP_DECR_REF(inp);
5266                                 }
5267                         }
5268                         if ((stcb != NULL) && (net == NULL)) {
5269 #ifdef INET
5270                                 if (addr->sa_family == AF_INET) {
5271
5272                                         struct sockaddr_in *sin;
5273
5274                                         sin = (struct sockaddr_in *)addr;
5275                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5276                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5277                                                 SCTP_TCB_UNLOCK(stcb);
5278                                                 error = EINVAL;
5279                                                 break;
5280                                         }
5281                                 } else
5282 #endif
5283 #ifdef INET6
5284                                 if (addr->sa_family == AF_INET6) {
5285                                         struct sockaddr_in6 *sin6;
5286
5287                                         sin6 = (struct sockaddr_in6 *)addr;
5288                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5289                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5290                                                 SCTP_TCB_UNLOCK(stcb);
5291                                                 error = EINVAL;
5292                                                 break;
5293                                         }
5294                                 } else
5295 #endif
5296                                 {
5297                                         error = EAFNOSUPPORT;
5298                                         SCTP_TCB_UNLOCK(stcb);
5299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5300                                         break;
5301                                 }
5302                         }
5303                         /* sanity checks */
5304                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5305                                 if (stcb)
5306                                         SCTP_TCB_UNLOCK(stcb);
5307                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5308                                 return (EINVAL);
5309                         }
5310                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5311                                 if (stcb)
5312                                         SCTP_TCB_UNLOCK(stcb);
5313                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5314                                 return (EINVAL);
5315                         }
5316                         if (stcb != NULL) {
5317                                 /************************TCB SPECIFIC SET ******************/
5318                                 if (net != NULL) {
5319                                         /************************NET SPECIFIC SET ******************/
5320                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5321                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5322                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5323                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5324                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5325                                                 }
5326                                                 net->dest_state |= SCTP_ADDR_NOHB;
5327                                         }
5328                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5329                                                 if (paddrp->spp_hbinterval) {
5330                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5331                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5332                                                         net->heart_beat_delay = 0;
5333                                                 }
5334                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5335                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5336                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5337                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5338                                         }
5339                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5340                                                 /* on demand HB */
5341                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5342                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5343                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5344                                         }
5345                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5346                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5347                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5348                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5349                                                 }
5350                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5351                                                 net->mtu = paddrp->spp_pathmtu;
5352                                                 switch (net->ro._l_addr.sa.sa_family) {
5353 #ifdef INET
5354                                                 case AF_INET:
5355                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5356                                                         break;
5357 #endif
5358 #ifdef INET6
5359                                                 case AF_INET6:
5360                                                         net->mtu += SCTP_MIN_OVERHEAD;
5361                                                         break;
5362 #endif
5363                                                 default:
5364                                                         break;
5365                                                 }
5366                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5367                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5368                                                 }
5369                                         }
5370                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5371                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5372                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5373                                                 }
5374                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5375                                         }
5376                                         if (paddrp->spp_pathmaxrxt) {
5377                                                 if (net->dest_state & SCTP_ADDR_PF) {
5378                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5379                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5380                                                         }
5381                                                 } else {
5382                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5383                                                             (net->error_count > net->pf_threshold)) {
5384                                                                 net->dest_state |= SCTP_ADDR_PF;
5385                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5386                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5387                                                                     stcb->sctp_ep, stcb, net,
5388                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5389                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5390                                                         }
5391                                                 }
5392                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5393                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5394                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5395                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5396                                                         }
5397                                                 } else {
5398                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5399                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5400                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5401                                                         }
5402                                                 }
5403                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5404                                         }
5405                                         if (paddrp->spp_flags & SPP_DSCP) {
5406                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5407                                                 net->dscp |= 0x01;
5408                                         }
5409 #ifdef INET6
5410                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5411                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5412                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5413                                                         net->flowlabel |= 0x80000000;
5414                                                 }
5415                                         }
5416 #endif
5417                                 } else {
5418                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5419                                         if (paddrp->spp_pathmaxrxt != 0) {
5420                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5421                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5422                                                         if (net->dest_state & SCTP_ADDR_PF) {
5423                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5424                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5425                                                                 }
5426                                                         } else {
5427                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5428                                                                     (net->error_count > net->pf_threshold)) {
5429                                                                         net->dest_state |= SCTP_ADDR_PF;
5430                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5431                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5432                                                                             stcb->sctp_ep, stcb, net,
5433                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5434                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5435                                                                 }
5436                                                         }
5437                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5438                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5439                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5440                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5441                                                                 }
5442                                                         } else {
5443                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5444                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5445                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5446                                                                 }
5447                                                         }
5448                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
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                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5513                                         }
5514                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5515                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5516                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5517                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5518                                                         }
5519                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5520                                                 }
5521                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5522                                         }
5523                                         if (paddrp->spp_flags & SPP_DSCP) {
5524                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5525                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5526                                                         net->dscp |= 0x01;
5527                                                 }
5528                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5529                                                 stcb->asoc.default_dscp |= 0x01;
5530                                         }
5531 #ifdef INET6
5532                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5533                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5534                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5535                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5536                                                                 net->flowlabel |= 0x80000000;
5537                                                         }
5538                                                 }
5539                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5540                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5541                                         }
5542 #endif
5543                                 }
5544                                 SCTP_TCB_UNLOCK(stcb);
5545                         } else {
5546                                 /************************NO TCB, SET TO default stuff ******************/
5547                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5548                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5549                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5550                                         SCTP_INP_WLOCK(inp);
5551                                         /*
5552                                          * For the TOS/FLOWLABEL stuff you
5553                                          * set it with the options on the
5554                                          * socket
5555                                          */
5556                                         if (paddrp->spp_pathmaxrxt != 0) {
5557                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5558                                         }
5559                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5560                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5561                                         else if (paddrp->spp_hbinterval != 0) {
5562                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5563                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5564                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5565                                         }
5566                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5567                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5568                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5569                                                 } else if (paddrp->spp_hbinterval) {
5570                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5571                                                 }
5572                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5573                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5574                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5575                                         }
5576                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5577                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5578                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5579                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5580                                         }
5581                                         if (paddrp->spp_flags & SPP_DSCP) {
5582                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5583                                                 inp->sctp_ep.default_dscp |= 0x01;
5584                                         }
5585 #ifdef INET6
5586                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5587                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5588                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5589                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5590                                                 }
5591                                         }
5592 #endif
5593                                         SCTP_INP_WUNLOCK(inp);
5594                                 } else {
5595                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5596                                         error = EINVAL;
5597                                 }
5598                         }
5599                         break;
5600                 }
5601         case SCTP_RTOINFO:
5602                 {
5603                         struct sctp_rtoinfo *srto;
5604                         uint32_t new_init, new_min, new_max;
5605
5606                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5607                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5608
5609                         if (stcb) {
5610                                 if (srto->srto_initial)
5611                                         new_init = srto->srto_initial;
5612                                 else
5613                                         new_init = stcb->asoc.initial_rto;
5614                                 if (srto->srto_max)
5615                                         new_max = srto->srto_max;
5616                                 else
5617                                         new_max = stcb->asoc.maxrto;
5618                                 if (srto->srto_min)
5619                                         new_min = srto->srto_min;
5620                                 else
5621                                         new_min = stcb->asoc.minrto;
5622                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5623                                         stcb->asoc.initial_rto = new_init;
5624                                         stcb->asoc.maxrto = new_max;
5625                                         stcb->asoc.minrto = new_min;
5626                                 } else {
5627                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5628                                         error = EINVAL;
5629                                 }
5630                                 SCTP_TCB_UNLOCK(stcb);
5631                         } else {
5632                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5633                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5634                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5635                                         SCTP_INP_WLOCK(inp);
5636                                         if (srto->srto_initial)
5637                                                 new_init = srto->srto_initial;
5638                                         else
5639                                                 new_init = inp->sctp_ep.initial_rto;
5640                                         if (srto->srto_max)
5641                                                 new_max = srto->srto_max;
5642                                         else
5643                                                 new_max = inp->sctp_ep.sctp_maxrto;
5644                                         if (srto->srto_min)
5645                                                 new_min = srto->srto_min;
5646                                         else
5647                                                 new_min = inp->sctp_ep.sctp_minrto;
5648                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5649                                                 inp->sctp_ep.initial_rto = new_init;
5650                                                 inp->sctp_ep.sctp_maxrto = new_max;
5651                                                 inp->sctp_ep.sctp_minrto = new_min;
5652                                         } else {
5653                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5654                                                 error = EINVAL;
5655                                         }
5656                                         SCTP_INP_WUNLOCK(inp);
5657                                 } else {
5658                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5659                                         error = EINVAL;
5660                                 }
5661                         }
5662                         break;
5663                 }
5664         case SCTP_ASSOCINFO:
5665                 {
5666                         struct sctp_assocparams *sasoc;
5667
5668                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5669                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5670                         if (sasoc->sasoc_cookie_life) {
5671                                 /* boundary check the cookie life */
5672                                 if (sasoc->sasoc_cookie_life < 1000)
5673                                         sasoc->sasoc_cookie_life = 1000;
5674                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5675                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5676                                 }
5677                         }
5678                         if (stcb) {
5679                                 if (sasoc->sasoc_asocmaxrxt)
5680                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5681                                 if (sasoc->sasoc_cookie_life) {
5682                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5683                                 }
5684                                 SCTP_TCB_UNLOCK(stcb);
5685                         } else {
5686                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5687                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5688                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5689                                         SCTP_INP_WLOCK(inp);
5690                                         if (sasoc->sasoc_asocmaxrxt)
5691                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5692                                         if (sasoc->sasoc_cookie_life) {
5693                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5694                                         }
5695                                         SCTP_INP_WUNLOCK(inp);
5696                                 } else {
5697                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5698                                         error = EINVAL;
5699                                 }
5700                         }
5701                         break;
5702                 }
5703         case SCTP_INITMSG:
5704                 {
5705                         struct sctp_initmsg *sinit;
5706
5707                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5708                         SCTP_INP_WLOCK(inp);
5709                         if (sinit->sinit_num_ostreams)
5710                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5711
5712                         if (sinit->sinit_max_instreams)
5713                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5714
5715                         if (sinit->sinit_max_attempts)
5716                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5717
5718                         if (sinit->sinit_max_init_timeo)
5719                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5720                         SCTP_INP_WUNLOCK(inp);
5721                         break;
5722                 }
5723         case SCTP_PRIMARY_ADDR:
5724                 {
5725                         struct sctp_setprim *spa;
5726                         struct sctp_nets *net;
5727                         struct sockaddr *addr;
5728
5729 #if defined(INET) && defined(INET6)
5730                         struct sockaddr_in sin_store;
5731
5732 #endif
5733
5734                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5735                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5736
5737 #if defined(INET) && defined(INET6)
5738                         if (spa->ssp_addr.ss_family == AF_INET6) {
5739                                 struct sockaddr_in6 *sin6;
5740
5741                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5742                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5743                                         in6_sin6_2_sin(&sin_store, sin6);
5744                                         addr = (struct sockaddr *)&sin_store;
5745                                 } else {
5746                                         addr = (struct sockaddr *)&spa->ssp_addr;
5747                                 }
5748                         } else {
5749                                 addr = (struct sockaddr *)&spa->ssp_addr;
5750                         }
5751 #else
5752                         addr = (struct sockaddr *)&spa->ssp_addr;
5753 #endif
5754                         if (stcb != NULL) {
5755                                 net = sctp_findnet(stcb, addr);
5756                         } else {
5757                                 /*
5758                                  * We increment here since
5759                                  * sctp_findassociation_ep_addr() wil do a
5760                                  * decrement if it finds the stcb as long as
5761                                  * the locked tcb (last argument) is NOT a
5762                                  * TCB.. aka NULL.
5763                                  */
5764                                 net = NULL;
5765                                 SCTP_INP_INCR_REF(inp);
5766                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5767                                     &net, NULL, NULL);
5768                                 if (stcb == NULL) {
5769                                         SCTP_INP_DECR_REF(inp);
5770                                 }
5771                         }
5772
5773                         if ((stcb != NULL) && (net != NULL)) {
5774                                 if (net != stcb->asoc.primary_destination) {
5775                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5776                                                 /* Ok we need to set it */
5777                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5778                                                         if ((stcb->asoc.alternate) &&
5779                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5780                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5781                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5782                                                                 stcb->asoc.alternate = NULL;
5783                                                         }
5784                                                 } else {
5785                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5786                                                         error = EINVAL;
5787                                                 }
5788                                         } else {
5789                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5790                                                 error = EINVAL;
5791                                         }
5792                                 }
5793                         } else {
5794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5795                                 error = EINVAL;
5796                         }
5797                         if (stcb != NULL) {
5798                                 SCTP_TCB_UNLOCK(stcb);
5799                         }
5800                         break;
5801                 }
5802         case SCTP_SET_DYNAMIC_PRIMARY:
5803                 {
5804                         union sctp_sockstore *ss;
5805
5806                         error = priv_check(curthread,
5807                             PRIV_NETINET_RESERVEDPORT);
5808                         if (error)
5809                                 break;
5810
5811                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5812                         /* SUPER USER CHECK? */
5813                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5814                         break;
5815                 }
5816         case SCTP_SET_PEER_PRIMARY_ADDR:
5817                 {
5818                         struct sctp_setpeerprim *sspp;
5819                         struct sockaddr *addr;
5820
5821 #if defined(INET) && defined(INET6)
5822                         struct sockaddr_in sin_store;
5823
5824 #endif
5825
5826                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5827                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5828                         if (stcb != NULL) {
5829                                 struct sctp_ifa *ifa;
5830
5831 #if defined(INET) && defined(INET6)
5832                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5833                                         struct sockaddr_in6 *sin6;
5834
5835                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5836                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5837                                                 in6_sin6_2_sin(&sin_store, sin6);
5838                                                 addr = (struct sockaddr *)&sin_store;
5839                                         } else {
5840                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5841                                         }
5842                                 } else {
5843                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5844                                 }
5845 #else
5846                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5847 #endif
5848                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5849                                 if (ifa == NULL) {
5850                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5851                                         error = EINVAL;
5852                                         goto out_of_it;
5853                                 }
5854                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5855                                         /*
5856                                          * Must validate the ifa found is in
5857                                          * our ep
5858                                          */
5859                                         struct sctp_laddr *laddr;
5860                                         int found = 0;
5861
5862                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5863                                                 if (laddr->ifa == NULL) {
5864                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5865                                                             __func__);
5866                                                         continue;
5867                                                 }
5868                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5869                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5870                                                         continue;
5871                                                 }
5872                                                 if (laddr->ifa == ifa) {
5873                                                         found = 1;
5874                                                         break;
5875                                                 }
5876                                         }
5877                                         if (!found) {
5878                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5879                                                 error = EINVAL;
5880                                                 goto out_of_it;
5881                                         }
5882                                 } else {
5883                                         switch (addr->sa_family) {
5884 #ifdef INET
5885                                         case AF_INET:
5886                                                 {
5887                                                         struct sockaddr_in *sin;
5888
5889                                                         sin = (struct sockaddr_in *)addr;
5890                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5891                                                             &sin->sin_addr) != 0) {
5892                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5893                                                                 error = EINVAL;
5894                                                                 goto out_of_it;
5895                                                         }
5896                                                         break;
5897                                                 }
5898 #endif
5899 #ifdef INET6
5900                                         case AF_INET6:
5901                                                 {
5902                                                         struct sockaddr_in6 *sin6;
5903
5904                                                         sin6 = (struct sockaddr_in6 *)addr;
5905                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5906                                                             &sin6->sin6_addr) != 0) {
5907                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5908                                                                 error = EINVAL;
5909                                                                 goto out_of_it;
5910                                                         }
5911                                                         break;
5912                                                 }
5913 #endif
5914                                         default:
5915                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5916                                                 error = EINVAL;
5917                                                 goto out_of_it;
5918                                         }
5919                                 }
5920                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5921                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5922                                         error = EINVAL;
5923                                 }
5924                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5925                 out_of_it:
5926                                 SCTP_TCB_UNLOCK(stcb);
5927                         } else {
5928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5929                                 error = EINVAL;
5930                         }
5931                         break;
5932                 }
5933         case SCTP_BINDX_ADD_ADDR:
5934                 {
5935                         struct sctp_getaddresses *addrs;
5936                         struct thread *td;
5937
5938                         td = (struct thread *)p;
5939                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5940                             optsize);
5941 #ifdef INET
5942                         if (addrs->addr->sa_family == AF_INET) {
5943                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5944                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5945                                         error = EINVAL;
5946                                         break;
5947                                 }
5948                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5949                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5950                                         break;
5951                                 }
5952                         } else
5953 #endif
5954 #ifdef INET6
5955                         if (addrs->addr->sa_family == AF_INET6) {
5956                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5957                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5958                                         error = EINVAL;
5959                                         break;
5960                                 }
5961                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5962                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5963                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5964                                         break;
5965                                 }
5966                         } else
5967 #endif
5968                         {
5969                                 error = EAFNOSUPPORT;
5970                                 break;
5971                         }
5972                         sctp_bindx_add_address(so, inp, addrs->addr,
5973                             addrs->sget_assoc_id, vrf_id,
5974                             &error, p);
5975                         break;
5976                 }
5977         case SCTP_BINDX_REM_ADDR:
5978                 {
5979                         struct sctp_getaddresses *addrs;
5980                         struct thread *td;
5981
5982                         td = (struct thread *)p;
5983
5984                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5985 #ifdef INET
5986                         if (addrs->addr->sa_family == AF_INET) {
5987                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5988                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5989                                         error = EINVAL;
5990                                         break;
5991                                 }
5992                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5993                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5994                                         break;
5995                                 }
5996                         } else
5997 #endif
5998 #ifdef INET6
5999                         if (addrs->addr->sa_family == AF_INET6) {
6000                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6001                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6002                                         error = EINVAL;
6003                                         break;
6004                                 }
6005                                 if (td != NULL &&
6006                                     (error = prison_local_ip6(td->td_ucred,
6007                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6008                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6009                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6010                                         break;
6011                                 }
6012                         } else
6013 #endif
6014                         {
6015                                 error = EAFNOSUPPORT;
6016                                 break;
6017                         }
6018                         sctp_bindx_delete_address(inp, addrs->addr,
6019                             addrs->sget_assoc_id, vrf_id,
6020                             &error);
6021                         break;
6022                 }
6023         case SCTP_EVENT:
6024                 {
6025                         struct sctp_event *event;
6026                         uint32_t event_type;
6027
6028                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6029                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6030                         switch (event->se_type) {
6031                         case SCTP_ASSOC_CHANGE:
6032                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6033                                 break;
6034                         case SCTP_PEER_ADDR_CHANGE:
6035                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6036                                 break;
6037                         case SCTP_REMOTE_ERROR:
6038                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6039                                 break;
6040                         case SCTP_SEND_FAILED:
6041                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6042                                 break;
6043                         case SCTP_SHUTDOWN_EVENT:
6044                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6045                                 break;
6046                         case SCTP_ADAPTATION_INDICATION:
6047                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6048                                 break;
6049                         case SCTP_PARTIAL_DELIVERY_EVENT:
6050                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6051                                 break;
6052                         case SCTP_AUTHENTICATION_EVENT:
6053                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6054                                 break;
6055                         case SCTP_STREAM_RESET_EVENT:
6056                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6057                                 break;
6058                         case SCTP_SENDER_DRY_EVENT:
6059                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6060                                 break;
6061                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6062                                 event_type = 0;
6063                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6064                                 error = ENOTSUP;
6065                                 break;
6066                         case SCTP_ASSOC_RESET_EVENT:
6067                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6068                                 break;
6069                         case SCTP_STREAM_CHANGE_EVENT:
6070                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6071                                 break;
6072                         case SCTP_SEND_FAILED_EVENT:
6073                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6074                                 break;
6075                         default:
6076                                 event_type = 0;
6077                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6078                                 error = EINVAL;
6079                                 break;
6080                         }
6081                         if (event_type > 0) {
6082                                 if (stcb) {
6083                                         if (event->se_on) {
6084                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6085                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6086                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6087                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6088                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6089                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6090                                                         }
6091                                                 }
6092                                         } else {
6093                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6094                                         }
6095                                         SCTP_TCB_UNLOCK(stcb);
6096                                 } else {
6097                                         /*
6098                                          * We don't want to send up a storm
6099                                          * of events, so return an error for
6100                                          * sender dry events
6101                                          */
6102                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6103                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6104                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6105                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6106                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6107                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6108                                                 error = ENOTSUP;
6109                                                 break;
6110                                         }
6111                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6112                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6113                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6114                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6115                                                 SCTP_INP_WLOCK(inp);
6116                                                 if (event->se_on) {
6117                                                         sctp_feature_on(inp, event_type);
6118                                                 } else {
6119                                                         sctp_feature_off(inp, event_type);
6120                                                 }
6121                                                 SCTP_INP_WUNLOCK(inp);
6122                                         }
6123                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6124                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6125                                                 SCTP_INP_RLOCK(inp);
6126                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6127                                                         SCTP_TCB_LOCK(stcb);
6128                                                         if (event->se_on) {
6129                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6130                                                         } else {
6131                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6132                                                         }
6133                                                         SCTP_TCB_UNLOCK(stcb);
6134                                                 }
6135                                                 SCTP_INP_RUNLOCK(inp);
6136                                         }
6137                                 }
6138                         }
6139                         break;
6140                 }
6141         case SCTP_RECVRCVINFO:
6142                 {
6143                         int *onoff;
6144
6145                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6146                         SCTP_INP_WLOCK(inp);
6147                         if (*onoff != 0) {
6148                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6149                         } else {
6150                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6151                         }
6152                         SCTP_INP_WUNLOCK(inp);
6153                         break;
6154                 }
6155         case SCTP_RECVNXTINFO:
6156                 {
6157                         int *onoff;
6158
6159                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6160                         SCTP_INP_WLOCK(inp);
6161                         if (*onoff != 0) {
6162                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6163                         } else {
6164                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6165                         }
6166                         SCTP_INP_WUNLOCK(inp);
6167                         break;
6168                 }
6169         case SCTP_DEFAULT_SNDINFO:
6170                 {
6171                         struct sctp_sndinfo *info;
6172                         uint16_t policy;
6173
6174                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6175                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6176
6177                         if (stcb) {
6178                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6179                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6180                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6181                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6182                                         stcb->asoc.def_send.sinfo_flags |= policy;
6183                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6184                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6185                                 } else {
6186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6187                                         error = EINVAL;
6188                                 }
6189                                 SCTP_TCB_UNLOCK(stcb);
6190                         } else {
6191                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6192                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6193                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6194                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6195                                         SCTP_INP_WLOCK(inp);
6196                                         inp->def_send.sinfo_stream = info->snd_sid;
6197                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6198                                         inp->def_send.sinfo_flags = info->snd_flags;
6199                                         inp->def_send.sinfo_flags |= policy;
6200                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6201                                         inp->def_send.sinfo_context = info->snd_context;
6202                                         SCTP_INP_WUNLOCK(inp);
6203                                 }
6204                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6205                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6206                                         SCTP_INP_RLOCK(inp);
6207                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6208                                                 SCTP_TCB_LOCK(stcb);
6209                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6210                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6211                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6212                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6213                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6214                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6215                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6216                                                 }
6217                                                 SCTP_TCB_UNLOCK(stcb);
6218                                         }
6219                                         SCTP_INP_RUNLOCK(inp);
6220                                 }
6221                         }
6222                         break;
6223                 }
6224         case SCTP_DEFAULT_PRINFO:
6225                 {
6226                         struct sctp_default_prinfo *info;
6227
6228                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6229                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6230
6231                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6232                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6233                                 error = EINVAL;
6234                                 break;
6235                         }
6236                         if (stcb) {
6237                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6238                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6239                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6240                                 SCTP_TCB_UNLOCK(stcb);
6241                         } else {
6242                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6243                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6244                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6245                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6246                                         SCTP_INP_WLOCK(inp);
6247                                         inp->def_send.sinfo_flags &= 0xfff0;
6248                                         inp->def_send.sinfo_flags |= info->pr_policy;
6249                                         inp->def_send.sinfo_timetolive = info->pr_value;
6250                                         SCTP_INP_WUNLOCK(inp);
6251                                 }
6252                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6253                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6254                                         SCTP_INP_RLOCK(inp);
6255                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6256                                                 SCTP_TCB_LOCK(stcb);
6257                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6258                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6259                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6260                                                 SCTP_TCB_UNLOCK(stcb);
6261                                         }
6262                                         SCTP_INP_RUNLOCK(inp);
6263                                 }
6264                         }
6265                         break;
6266                 }
6267         case SCTP_PEER_ADDR_THLDS:
6268                 /* Applies to the specific association */
6269                 {
6270                         struct sctp_paddrthlds *thlds;
6271                         struct sctp_nets *net;
6272                         struct sockaddr *addr;
6273
6274 #if defined(INET) && defined(INET6)
6275                         struct sockaddr_in sin_store;
6276
6277 #endif
6278
6279                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6280                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6281
6282 #if defined(INET) && defined(INET6)
6283                         if (thlds->spt_address.ss_family == AF_INET6) {
6284                                 struct sockaddr_in6 *sin6;
6285
6286                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6287                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6288                                         in6_sin6_2_sin(&sin_store, sin6);
6289                                         addr = (struct sockaddr *)&sin_store;
6290                                 } else {
6291                                         addr = (struct sockaddr *)&thlds->spt_address;
6292                                 }
6293                         } else {
6294                                 addr = (struct sockaddr *)&thlds->spt_address;
6295                         }
6296 #else
6297                         addr = (struct sockaddr *)&thlds->spt_address;
6298 #endif
6299                         if (stcb != NULL) {
6300                                 net = sctp_findnet(stcb, addr);
6301                         } else {
6302                                 /*
6303                                  * We increment here since
6304                                  * sctp_findassociation_ep_addr() wil do a
6305                                  * decrement if it finds the stcb as long as
6306                                  * the locked tcb (last argument) is NOT a
6307                                  * TCB.. aka NULL.
6308                                  */
6309                                 net = NULL;
6310                                 SCTP_INP_INCR_REF(inp);
6311                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6312                                     &net, NULL, NULL);
6313                                 if (stcb == NULL) {
6314                                         SCTP_INP_DECR_REF(inp);
6315                                 }
6316                         }
6317                         if ((stcb != NULL) && (net == NULL)) {
6318 #ifdef INET
6319                                 if (addr->sa_family == AF_INET) {
6320
6321                                         struct sockaddr_in *sin;
6322
6323                                         sin = (struct sockaddr_in *)addr;
6324                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6325                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6326                                                 SCTP_TCB_UNLOCK(stcb);
6327                                                 error = EINVAL;
6328                                                 break;
6329                                         }
6330                                 } else
6331 #endif
6332 #ifdef INET6
6333                                 if (addr->sa_family == AF_INET6) {
6334                                         struct sockaddr_in6 *sin6;
6335
6336                                         sin6 = (struct sockaddr_in6 *)addr;
6337                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6338                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6339                                                 SCTP_TCB_UNLOCK(stcb);
6340                                                 error = EINVAL;
6341                                                 break;
6342                                         }
6343                                 } else
6344 #endif
6345                                 {
6346                                         error = EAFNOSUPPORT;
6347                                         SCTP_TCB_UNLOCK(stcb);
6348                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6349                                         break;
6350                                 }
6351                         }
6352                         if (thlds->spt_pathcpthld != 0xffff) {
6353                                 error = EINVAL;
6354                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6355                                 break;
6356                         }
6357                         if (stcb != NULL) {
6358                                 if (net != NULL) {
6359                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6360                                         net->pf_threshold = thlds->spt_pathpfthld;
6361                                         if (net->dest_state & SCTP_ADDR_PF) {
6362                                                 if ((net->error_count > net->failure_threshold) ||
6363                                                     (net->error_count <= net->pf_threshold)) {
6364                                                         net->dest_state &= ~SCTP_ADDR_PF;
6365                                                 }
6366                                         } else {
6367                                                 if ((net->error_count > net->pf_threshold) &&
6368                                                     (net->error_count <= net->failure_threshold)) {
6369                                                         net->dest_state |= SCTP_ADDR_PF;
6370                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6371                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6372                                                             stcb->sctp_ep, stcb, net,
6373                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6374                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6375                                                 }
6376                                         }
6377                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6378                                                 if (net->error_count > net->failure_threshold) {
6379                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6380                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6381                                                 }
6382                                         } else {
6383                                                 if (net->error_count <= net->failure_threshold) {
6384                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6385                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6386                                                 }
6387                                         }
6388                                 } else {
6389                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6390                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6391                                                 net->pf_threshold = thlds->spt_pathpfthld;
6392                                                 if (net->dest_state & SCTP_ADDR_PF) {
6393                                                         if ((net->error_count > net->failure_threshold) ||
6394                                                             (net->error_count <= net->pf_threshold)) {
6395                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6396                                                         }
6397                                                 } else {
6398                                                         if ((net->error_count > net->pf_threshold) &&
6399                                                             (net->error_count <= net->failure_threshold)) {
6400                                                                 net->dest_state |= SCTP_ADDR_PF;
6401                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6402                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6403                                                                     stcb->sctp_ep, stcb, net,
6404                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6405                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6406                                                         }
6407                                                 }
6408                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6409                                                         if (net->error_count > net->failure_threshold) {
6410                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6411                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6412                                                         }
6413                                                 } else {
6414                                                         if (net->error_count <= net->failure_threshold) {
6415                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6416                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6417                                                         }
6418                                                 }
6419                                         }
6420                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6421                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6422                                 }
6423                                 SCTP_TCB_UNLOCK(stcb);
6424                         } else {
6425                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6426                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6427                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6428                                         SCTP_INP_WLOCK(inp);
6429                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6430                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6431                                         SCTP_INP_WUNLOCK(inp);
6432                                 } else {
6433                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6434                                         error = EINVAL;
6435                                 }
6436                         }
6437                         break;
6438                 }
6439         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6440                 {
6441                         struct sctp_udpencaps *encaps;
6442                         struct sctp_nets *net;
6443                         struct sockaddr *addr;
6444
6445 #if defined(INET) && defined(INET6)
6446                         struct sockaddr_in sin_store;
6447
6448 #endif
6449
6450                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6451                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6452
6453 #if defined(INET) && defined(INET6)
6454                         if (encaps->sue_address.ss_family == AF_INET6) {
6455                                 struct sockaddr_in6 *sin6;
6456
6457                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6458                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6459                                         in6_sin6_2_sin(&sin_store, sin6);
6460                                         addr = (struct sockaddr *)&sin_store;
6461                                 } else {
6462                                         addr = (struct sockaddr *)&encaps->sue_address;
6463                                 }
6464                         } else {
6465                                 addr = (struct sockaddr *)&encaps->sue_address;
6466                         }
6467 #else
6468                         addr = (struct sockaddr *)&encaps->sue_address;
6469 #endif
6470                         if (stcb != NULL) {
6471                                 net = sctp_findnet(stcb, addr);
6472                         } else {
6473                                 /*
6474                                  * We increment here since
6475                                  * sctp_findassociation_ep_addr() wil do a
6476                                  * decrement if it finds the stcb as long as
6477                                  * the locked tcb (last argument) is NOT a
6478                                  * TCB.. aka NULL.
6479                                  */
6480                                 net = NULL;
6481                                 SCTP_INP_INCR_REF(inp);
6482                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6483                                 if (stcb == NULL) {
6484                                         SCTP_INP_DECR_REF(inp);
6485                                 }
6486                         }
6487                         if ((stcb != NULL) && (net == NULL)) {
6488 #ifdef INET
6489                                 if (addr->sa_family == AF_INET) {
6490
6491                                         struct sockaddr_in *sin;
6492
6493                                         sin = (struct sockaddr_in *)addr;
6494                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6495                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6496                                                 SCTP_TCB_UNLOCK(stcb);
6497                                                 error = EINVAL;
6498                                                 break;
6499                                         }
6500                                 } else
6501 #endif
6502 #ifdef INET6
6503                                 if (addr->sa_family == AF_INET6) {
6504                                         struct sockaddr_in6 *sin6;
6505
6506                                         sin6 = (struct sockaddr_in6 *)addr;
6507                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6508                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6509                                                 SCTP_TCB_UNLOCK(stcb);
6510                                                 error = EINVAL;
6511                                                 break;
6512                                         }
6513                                 } else
6514 #endif
6515                                 {
6516                                         error = EAFNOSUPPORT;
6517                                         SCTP_TCB_UNLOCK(stcb);
6518                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6519                                         break;
6520                                 }
6521                         }
6522                         if (stcb != NULL) {
6523                                 if (net != NULL) {
6524                                         net->port = encaps->sue_port;
6525                                 } else {
6526                                         stcb->asoc.port = encaps->sue_port;
6527                                 }
6528                                 SCTP_TCB_UNLOCK(stcb);
6529                         } else {
6530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6532                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6533                                         SCTP_INP_WLOCK(inp);
6534                                         inp->sctp_ep.port = encaps->sue_port;
6535                                         SCTP_INP_WUNLOCK(inp);
6536                                 } else {
6537                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6538                                         error = EINVAL;
6539                                 }
6540                         }
6541                         break;
6542                 }
6543         case SCTP_ECN_SUPPORTED:
6544                 {
6545                         struct sctp_assoc_value *av;
6546
6547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6548                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6549
6550                         if (stcb) {
6551                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6552                                 error = EINVAL;
6553                                 SCTP_TCB_UNLOCK(stcb);
6554                         } else {
6555                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6556                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6557                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6558                                         SCTP_INP_WLOCK(inp);
6559                                         if (av->assoc_value == 0) {
6560                                                 inp->ecn_supported = 0;
6561                                         } else {
6562                                                 inp->ecn_supported = 1;
6563                                         }
6564                                         SCTP_INP_WUNLOCK(inp);
6565                                 } else {
6566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6567                                         error = EINVAL;
6568                                 }
6569                         }
6570                         break;
6571                 }
6572         case SCTP_PR_SUPPORTED:
6573                 {
6574                         struct sctp_assoc_value *av;
6575
6576                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6577                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6578
6579                         if (stcb) {
6580                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6581                                 error = EINVAL;
6582                                 SCTP_TCB_UNLOCK(stcb);
6583                         } else {
6584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6586                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6587                                         SCTP_INP_WLOCK(inp);
6588                                         if (av->assoc_value == 0) {
6589                                                 inp->prsctp_supported = 0;
6590                                         } else {
6591                                                 inp->prsctp_supported = 1;
6592                                         }
6593                                         SCTP_INP_WUNLOCK(inp);
6594                                 } else {
6595                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6596                                         error = EINVAL;
6597                                 }
6598                         }
6599                         break;
6600                 }
6601         case SCTP_AUTH_SUPPORTED:
6602                 {
6603                         struct sctp_assoc_value *av;
6604
6605                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6606                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6607
6608                         if (stcb) {
6609                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6610                                 error = EINVAL;
6611                                 SCTP_TCB_UNLOCK(stcb);
6612                         } else {
6613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6615                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6616                                         if ((av->assoc_value == 0) &&
6617                                             (inp->asconf_supported == 1)) {
6618                                                 /*
6619                                                  * AUTH is required for
6620                                                  * ASCONF
6621                                                  */
6622                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6623                                                 error = EINVAL;
6624                                         } else {
6625                                                 SCTP_INP_WLOCK(inp);
6626                                                 if (av->assoc_value == 0) {
6627                                                         inp->auth_supported = 0;
6628                                                 } else {
6629                                                         inp->auth_supported = 1;
6630                                                 }
6631                                                 SCTP_INP_WUNLOCK(inp);
6632                                         }
6633                                 } else {
6634                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6635                                         error = EINVAL;
6636                                 }
6637                         }
6638                         break;
6639                 }
6640         case SCTP_ASCONF_SUPPORTED:
6641                 {
6642                         struct sctp_assoc_value *av;
6643
6644                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6645                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6646
6647                         if (stcb) {
6648                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6649                                 error = EINVAL;
6650                                 SCTP_TCB_UNLOCK(stcb);
6651                         } else {
6652                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6653                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6654                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6655                                         if ((av->assoc_value != 0) &&
6656                                             (inp->auth_supported == 0)) {
6657                                                 /*
6658                                                  * AUTH is required for
6659                                                  * ASCONF
6660                                                  */
6661                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6662                                                 error = EINVAL;
6663                                         } else {
6664                                                 SCTP_INP_WLOCK(inp);
6665                                                 if (av->assoc_value == 0) {
6666                                                         inp->asconf_supported = 0;
6667                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6668                                                             inp->sctp_ep.local_auth_chunks);
6669                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6670                                                             inp->sctp_ep.local_auth_chunks);
6671                                                 } else {
6672                                                         inp->asconf_supported = 1;
6673                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6674                                                             inp->sctp_ep.local_auth_chunks);
6675                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6676                                                             inp->sctp_ep.local_auth_chunks);
6677                                                 }
6678                                                 SCTP_INP_WUNLOCK(inp);
6679                                         }
6680                                 } else {
6681                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6682                                         error = EINVAL;
6683                                 }
6684                         }
6685                         break;
6686                 }
6687         case SCTP_RECONFIG_SUPPORTED:
6688                 {
6689                         struct sctp_assoc_value *av;
6690
6691                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6692                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6693
6694                         if (stcb) {
6695                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6696                                 error = EINVAL;
6697                                 SCTP_TCB_UNLOCK(stcb);
6698                         } else {
6699                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6700                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6701                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6702                                         SCTP_INP_WLOCK(inp);
6703                                         if (av->assoc_value == 0) {
6704                                                 inp->reconfig_supported = 0;
6705                                         } else {
6706                                                 inp->reconfig_supported = 1;
6707                                         }
6708                                         SCTP_INP_WUNLOCK(inp);
6709                                 } else {
6710                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6711                                         error = EINVAL;
6712                                 }
6713                         }
6714                         break;
6715                 }
6716         case SCTP_NRSACK_SUPPORTED:
6717                 {
6718                         struct sctp_assoc_value *av;
6719
6720                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6721                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6722
6723                         if (stcb) {
6724                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6725                                 error = EINVAL;
6726                                 SCTP_TCB_UNLOCK(stcb);
6727                         } else {
6728                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6729                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6730                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6731                                         SCTP_INP_WLOCK(inp);
6732                                         if (av->assoc_value == 0) {
6733                                                 inp->nrsack_supported = 0;
6734                                         } else {
6735                                                 inp->nrsack_supported = 1;
6736                                         }
6737                                         SCTP_INP_WUNLOCK(inp);
6738                                 } else {
6739                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6740                                         error = EINVAL;
6741                                 }
6742                         }
6743                         break;
6744                 }
6745         case SCTP_PKTDROP_SUPPORTED:
6746                 {
6747                         struct sctp_assoc_value *av;
6748
6749                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6750                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6751
6752                         if (stcb) {
6753                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6754                                 error = EINVAL;
6755                                 SCTP_TCB_UNLOCK(stcb);
6756                         } else {
6757                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6758                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6759                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6760                                         SCTP_INP_WLOCK(inp);
6761                                         if (av->assoc_value == 0) {
6762                                                 inp->pktdrop_supported = 0;
6763                                         } else {
6764                                                 inp->pktdrop_supported = 1;
6765                                         }
6766                                         SCTP_INP_WUNLOCK(inp);
6767                                 } else {
6768                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6769                                         error = EINVAL;
6770                                 }
6771                         }
6772                         break;
6773                 }
6774         case SCTP_MAX_CWND:
6775                 {
6776                         struct sctp_assoc_value *av;
6777                         struct sctp_nets *net;
6778
6779                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6780                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6781
6782                         if (stcb) {
6783                                 stcb->asoc.max_cwnd = av->assoc_value;
6784                                 if (stcb->asoc.max_cwnd > 0) {
6785                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6786                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6787                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6788                                                         net->cwnd = stcb->asoc.max_cwnd;
6789                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6790                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6791                                                         }
6792                                                 }
6793                                         }
6794                                 }
6795                                 SCTP_TCB_UNLOCK(stcb);
6796                         } else {
6797                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6798                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6799                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6800                                         SCTP_INP_WLOCK(inp);
6801                                         inp->max_cwnd = av->assoc_value;
6802                                         SCTP_INP_WUNLOCK(inp);
6803                                 } else {
6804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6805                                         error = EINVAL;
6806                                 }
6807                         }
6808                         break;
6809                 }
6810         default:
6811                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6812                 error = ENOPROTOOPT;
6813                 break;
6814         }                       /* end switch (opt) */
6815         return (error);
6816 }
6817
6818 int
6819 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6820 {
6821         void *optval = NULL;
6822         size_t optsize = 0;
6823         void *p;
6824         int error = 0;
6825         struct sctp_inpcb *inp;
6826
6827         if ((sopt->sopt_level == SOL_SOCKET) &&
6828             (sopt->sopt_name == SO_SETFIB)) {
6829                 inp = (struct sctp_inpcb *)so->so_pcb;
6830                 if (inp == NULL) {
6831                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6832                         return (EINVAL);
6833                 }
6834                 SCTP_INP_WLOCK(inp);
6835                 inp->fibnum = so->so_fibnum;
6836                 SCTP_INP_WUNLOCK(inp);
6837                 return (0);
6838         }
6839         if (sopt->sopt_level != IPPROTO_SCTP) {
6840                 /* wrong proto level... send back up to IP */
6841 #ifdef INET6
6842                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6843                         error = ip6_ctloutput(so, sopt);
6844 #endif                          /* INET6 */
6845 #if defined(INET) && defined(INET6)
6846                 else
6847 #endif
6848 #ifdef INET
6849                         error = ip_ctloutput(so, sopt);
6850 #endif
6851                 return (error);
6852         }
6853         optsize = sopt->sopt_valsize;
6854         if (optsize) {
6855                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6856                 if (optval == NULL) {
6857                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6858                         return (ENOBUFS);
6859                 }
6860                 error = sooptcopyin(sopt, optval, optsize, optsize);
6861                 if (error) {
6862                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6863                         goto out;
6864                 }
6865         }
6866         p = (void *)sopt->sopt_td;
6867         if (sopt->sopt_dir == SOPT_SET) {
6868                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6869         } else if (sopt->sopt_dir == SOPT_GET) {
6870                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6871         } else {
6872                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6873                 error = EINVAL;
6874         }
6875         if ((error == 0) && (optval != NULL)) {
6876                 error = sooptcopyout(sopt, optval, optsize);
6877                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6878         } else if (optval != NULL) {
6879                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6880         }
6881 out:
6882         return (error);
6883 }
6884
6885 #ifdef INET
6886 static int
6887 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6888 {
6889         int error = 0;
6890         int create_lock_on = 0;
6891         uint32_t vrf_id;
6892         struct sctp_inpcb *inp;
6893         struct sctp_tcb *stcb = NULL;
6894
6895         inp = (struct sctp_inpcb *)so->so_pcb;
6896         if (inp == NULL) {
6897                 /* I made the same as TCP since we are not setup? */
6898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6899                 return (ECONNRESET);
6900         }
6901         if (addr == NULL) {
6902                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6903                 return EINVAL;
6904         }
6905         switch (addr->sa_family) {
6906 #ifdef INET6
6907         case AF_INET6:
6908                 {
6909                         struct sockaddr_in6 *sin6p;
6910
6911                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6912                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6913                                 return (EINVAL);
6914                         }
6915                         sin6p = (struct sockaddr_in6 *)addr;
6916                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6917                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6918                                 return (error);
6919                         }
6920                         break;
6921                 }
6922 #endif
6923 #ifdef INET
6924         case AF_INET:
6925                 {
6926                         struct sockaddr_in *sinp;
6927
6928                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6929                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6930                                 return (EINVAL);
6931                         }
6932                         sinp = (struct sockaddr_in *)addr;
6933                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6934                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6935                                 return (error);
6936                         }
6937                         break;
6938                 }
6939 #endif
6940         default:
6941                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6942                 return (EAFNOSUPPORT);
6943         }
6944         SCTP_INP_INCR_REF(inp);
6945         SCTP_ASOC_CREATE_LOCK(inp);
6946         create_lock_on = 1;
6947
6948
6949         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6950             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6951                 /* Should I really unlock ? */
6952                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6953                 error = EFAULT;
6954                 goto out_now;
6955         }
6956 #ifdef INET6
6957         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6958             (addr->sa_family == AF_INET6)) {
6959                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6960                 error = EINVAL;
6961                 goto out_now;
6962         }
6963 #endif
6964         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6965             SCTP_PCB_FLAGS_UNBOUND) {
6966                 /* Bind a ephemeral port */
6967                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6968                 if (error) {
6969                         goto out_now;
6970                 }
6971         }
6972         /* Now do we connect? */
6973         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6974             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6975                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6976                 error = EINVAL;
6977                 goto out_now;
6978         }
6979         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6980             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6981                 /* We are already connected AND the TCP model */
6982                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6983                 error = EADDRINUSE;
6984                 goto out_now;
6985         }
6986         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6987                 SCTP_INP_RLOCK(inp);
6988                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6989                 SCTP_INP_RUNLOCK(inp);
6990         } else {
6991                 /*
6992                  * We increment here since sctp_findassociation_ep_addr()
6993                  * will do a decrement if it finds the stcb as long as the
6994                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6995                  */
6996                 SCTP_INP_INCR_REF(inp);
6997                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6998                 if (stcb == NULL) {
6999                         SCTP_INP_DECR_REF(inp);
7000                 } else {
7001                         SCTP_TCB_UNLOCK(stcb);
7002                 }
7003         }
7004         if (stcb != NULL) {
7005                 /* Already have or am bring up an association */
7006                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7007                 error = EALREADY;
7008                 goto out_now;
7009         }
7010         vrf_id = inp->def_vrf_id;
7011         /* We are GOOD to go */
7012         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7013             inp->sctp_ep.pre_open_stream_count,
7014             inp->sctp_ep.port, p);
7015         if (stcb == NULL) {
7016                 /* Gak! no memory */
7017                 goto out_now;
7018         }
7019         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7020                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7021                 /* Set the connected flag so we can queue data */
7022                 soisconnecting(so);
7023         }
7024         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
7025         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7026
7027         /* initialize authentication parameters for the assoc */
7028         sctp_initialize_auth_params(inp, stcb);
7029
7030         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7031         SCTP_TCB_UNLOCK(stcb);
7032 out_now:
7033         if (create_lock_on) {
7034                 SCTP_ASOC_CREATE_UNLOCK(inp);
7035         }
7036         SCTP_INP_DECR_REF(inp);
7037         return (error);
7038 }
7039
7040 #endif
7041
7042 int
7043 sctp_listen(struct socket *so, int backlog, struct thread *p)
7044 {
7045         /*
7046          * Note this module depends on the protocol processing being called
7047          * AFTER any socket level flags and backlog are applied to the
7048          * socket. The traditional way that the socket flags are applied is
7049          * AFTER protocol processing. We have made a change to the
7050          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7051          * place if the socket API for SCTP is to work properly.
7052          */
7053
7054         int error = 0;
7055         struct sctp_inpcb *inp;
7056
7057         inp = (struct sctp_inpcb *)so->so_pcb;
7058         if (inp == NULL) {
7059                 /* I made the same as TCP since we are not setup? */
7060                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7061                 return (ECONNRESET);
7062         }
7063         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7064                 /* See if we have a listener */
7065                 struct sctp_inpcb *tinp;
7066                 union sctp_sockstore store;
7067
7068                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7069                         /* not bound all */
7070                         struct sctp_laddr *laddr;
7071
7072                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7073                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7074                                 switch (store.sa.sa_family) {
7075 #ifdef INET
7076                                 case AF_INET:
7077                                         store.sin.sin_port = inp->sctp_lport;
7078                                         break;
7079 #endif
7080 #ifdef INET6
7081                                 case AF_INET6:
7082                                         store.sin6.sin6_port = inp->sctp_lport;
7083                                         break;
7084 #endif
7085                                 default:
7086                                         break;
7087                                 }
7088                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7089                                 if (tinp && (tinp != inp) &&
7090                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7091                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7092                                     (tinp->sctp_socket->so_qlimit)) {
7093                                         /*
7094                                          * we have a listener already and
7095                                          * its not this inp.
7096                                          */
7097                                         SCTP_INP_DECR_REF(tinp);
7098                                         return (EADDRINUSE);
7099                                 } else if (tinp) {
7100                                         SCTP_INP_DECR_REF(tinp);
7101                                 }
7102                         }
7103                 } else {
7104                         /* Setup a local addr bound all */
7105                         memset(&store, 0, sizeof(store));
7106 #ifdef INET6
7107                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7108                                 store.sa.sa_family = AF_INET6;
7109                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7110                         }
7111 #endif
7112 #ifdef INET
7113                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7114                                 store.sa.sa_family = AF_INET;
7115                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7116                         }
7117 #endif
7118                         switch (store.sa.sa_family) {
7119 #ifdef INET
7120                         case AF_INET:
7121                                 store.sin.sin_port = inp->sctp_lport;
7122                                 break;
7123 #endif
7124 #ifdef INET6
7125                         case AF_INET6:
7126                                 store.sin6.sin6_port = inp->sctp_lport;
7127                                 break;
7128 #endif
7129                         default:
7130                                 break;
7131                         }
7132                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7133                         if (tinp && (tinp != inp) &&
7134                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7135                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7136                             (tinp->sctp_socket->so_qlimit)) {
7137                                 /*
7138                                  * we have a listener already and its not
7139                                  * this inp.
7140                                  */
7141                                 SCTP_INP_DECR_REF(tinp);
7142                                 return (EADDRINUSE);
7143                         } else if (tinp) {
7144                                 SCTP_INP_DECR_REF(tinp);
7145                         }
7146                 }
7147         }
7148         SCTP_INP_RLOCK(inp);
7149 #ifdef SCTP_LOCK_LOGGING
7150         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7151                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7152         }
7153 #endif
7154         SOCK_LOCK(so);
7155         error = solisten_proto_check(so);
7156         SOCK_UNLOCK(so);
7157         if (error) {
7158                 SCTP_INP_RUNLOCK(inp);
7159                 return (error);
7160         }
7161         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7162             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7163                 /*
7164                  * The unlucky case - We are in the tcp pool with this guy.
7165                  * - Someone else is in the main inp slot. - We must move
7166                  * this guy (the listener) to the main slot - We must then
7167                  * move the guy that was listener to the TCP Pool.
7168                  */
7169                 if (sctp_swap_inpcb_for_listen(inp)) {
7170                         SCTP_INP_RUNLOCK(inp);
7171                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7172                         return (EADDRINUSE);
7173                 }
7174         }
7175         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7176             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7177                 /* We are already connected AND the TCP model */
7178                 SCTP_INP_RUNLOCK(inp);
7179                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7180                 return (EADDRINUSE);
7181         }
7182         SCTP_INP_RUNLOCK(inp);
7183         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7184                 /* We must do a bind. */
7185                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7186                         /* bind error, probably perm */
7187                         return (error);
7188                 }
7189         }
7190         SOCK_LOCK(so);
7191         /* It appears for 7.0 and on, we must always call this. */
7192         solisten_proto(so, backlog);
7193         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7194                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7195                 so->so_options &= ~SO_ACCEPTCONN;
7196         }
7197         if (backlog == 0) {
7198                 /* turning off listen */
7199                 so->so_options &= ~SO_ACCEPTCONN;
7200         }
7201         SOCK_UNLOCK(so);
7202         return (error);
7203 }
7204
7205 static int sctp_defered_wakeup_cnt = 0;
7206
7207 int
7208 sctp_accept(struct socket *so, struct sockaddr **addr)
7209 {
7210         struct sctp_tcb *stcb;
7211         struct sctp_inpcb *inp;
7212         union sctp_sockstore store;
7213
7214 #ifdef INET6
7215         int error;
7216
7217 #endif
7218         inp = (struct sctp_inpcb *)so->so_pcb;
7219
7220         if (inp == NULL) {
7221                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7222                 return (ECONNRESET);
7223         }
7224         SCTP_INP_RLOCK(inp);
7225         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7226                 SCTP_INP_RUNLOCK(inp);
7227                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7228                 return (EOPNOTSUPP);
7229         }
7230         if (so->so_state & SS_ISDISCONNECTED) {
7231                 SCTP_INP_RUNLOCK(inp);
7232                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7233                 return (ECONNABORTED);
7234         }
7235         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7236         if (stcb == NULL) {
7237                 SCTP_INP_RUNLOCK(inp);
7238                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7239                 return (ECONNRESET);
7240         }
7241         SCTP_TCB_LOCK(stcb);
7242         SCTP_INP_RUNLOCK(inp);
7243         store = stcb->asoc.primary_destination->ro._l_addr;
7244         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7245         SCTP_TCB_UNLOCK(stcb);
7246         switch (store.sa.sa_family) {
7247 #ifdef INET
7248         case AF_INET:
7249                 {
7250                         struct sockaddr_in *sin;
7251
7252                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7253                         if (sin == NULL)
7254                                 return (ENOMEM);
7255                         sin->sin_family = AF_INET;
7256                         sin->sin_len = sizeof(*sin);
7257                         sin->sin_port = store.sin.sin_port;
7258                         sin->sin_addr = store.sin.sin_addr;
7259                         *addr = (struct sockaddr *)sin;
7260                         break;
7261                 }
7262 #endif
7263 #ifdef INET6
7264         case AF_INET6:
7265                 {
7266                         struct sockaddr_in6 *sin6;
7267
7268                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7269                         if (sin6 == NULL)
7270                                 return (ENOMEM);
7271                         sin6->sin6_family = AF_INET6;
7272                         sin6->sin6_len = sizeof(*sin6);
7273                         sin6->sin6_port = store.sin6.sin6_port;
7274                         sin6->sin6_addr = store.sin6.sin6_addr;
7275                         if ((error = sa6_recoverscope(sin6)) != 0) {
7276                                 SCTP_FREE_SONAME(sin6);
7277                                 return (error);
7278                         }
7279                         *addr = (struct sockaddr *)sin6;
7280                         break;
7281                 }
7282 #endif
7283         default:
7284                 /* TSNH */
7285                 break;
7286         }
7287         /* Wake any delayed sleep action */
7288         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7289                 SCTP_INP_WLOCK(inp);
7290                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7291                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7292                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7293                         SCTP_INP_WUNLOCK(inp);
7294                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7295                         if (sowriteable(inp->sctp_socket)) {
7296                                 sowwakeup_locked(inp->sctp_socket);
7297                         } else {
7298                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7299                         }
7300                         SCTP_INP_WLOCK(inp);
7301                 }
7302                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7303                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7304                         SCTP_INP_WUNLOCK(inp);
7305                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7306                         if (soreadable(inp->sctp_socket)) {
7307                                 sctp_defered_wakeup_cnt++;
7308                                 sorwakeup_locked(inp->sctp_socket);
7309                         } else {
7310                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7311                         }
7312                         SCTP_INP_WLOCK(inp);
7313                 }
7314                 SCTP_INP_WUNLOCK(inp);
7315         }
7316         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7317                 SCTP_TCB_LOCK(stcb);
7318                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7319                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7320         }
7321         return (0);
7322 }
7323
7324 #ifdef INET
7325 int
7326 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7327 {
7328         struct sockaddr_in *sin;
7329         uint32_t vrf_id;
7330         struct sctp_inpcb *inp;
7331         struct sctp_ifa *sctp_ifa;
7332
7333         /*
7334          * Do the malloc first in case it blocks.
7335          */
7336         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7337         if (sin == NULL)
7338                 return (ENOMEM);
7339         sin->sin_family = AF_INET;
7340         sin->sin_len = sizeof(*sin);
7341         inp = (struct sctp_inpcb *)so->so_pcb;
7342         if (!inp) {
7343                 SCTP_FREE_SONAME(sin);
7344                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7345                 return (ECONNRESET);
7346         }
7347         SCTP_INP_RLOCK(inp);
7348         sin->sin_port = inp->sctp_lport;
7349         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7350                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7351                         struct sctp_tcb *stcb;
7352                         struct sockaddr_in *sin_a;
7353                         struct sctp_nets *net;
7354                         int fnd;
7355
7356                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7357                         if (stcb == NULL) {
7358                                 goto notConn;
7359                         }
7360                         fnd = 0;
7361                         sin_a = NULL;
7362                         SCTP_TCB_LOCK(stcb);
7363                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7364                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7365                                 if (sin_a == NULL)
7366                                         /* this will make coverity happy */
7367                                         continue;
7368
7369                                 if (sin_a->sin_family == AF_INET) {
7370                                         fnd = 1;
7371                                         break;
7372                                 }
7373                         }
7374                         if ((!fnd) || (sin_a == NULL)) {
7375                                 /* punt */
7376                                 SCTP_TCB_UNLOCK(stcb);
7377                                 goto notConn;
7378                         }
7379                         vrf_id = inp->def_vrf_id;
7380                         sctp_ifa = sctp_source_address_selection(inp,
7381                             stcb,
7382                             (sctp_route_t *) & net->ro,
7383                             net, 0, vrf_id);
7384                         if (sctp_ifa) {
7385                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7386                                 sctp_free_ifa(sctp_ifa);
7387                         }
7388                         SCTP_TCB_UNLOCK(stcb);
7389                 } else {
7390                         /* For the bound all case you get back 0 */
7391         notConn:
7392                         sin->sin_addr.s_addr = 0;
7393                 }
7394
7395         } else {
7396                 /* Take the first IPv4 address in the list */
7397                 struct sctp_laddr *laddr;
7398                 int fnd = 0;
7399
7400                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7401                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7402                                 struct sockaddr_in *sin_a;
7403
7404                                 sin_a = &laddr->ifa->address.sin;
7405                                 sin->sin_addr = sin_a->sin_addr;
7406                                 fnd = 1;
7407                                 break;
7408                         }
7409                 }
7410                 if (!fnd) {
7411                         SCTP_FREE_SONAME(sin);
7412                         SCTP_INP_RUNLOCK(inp);
7413                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7414                         return (ENOENT);
7415                 }
7416         }
7417         SCTP_INP_RUNLOCK(inp);
7418         (*addr) = (struct sockaddr *)sin;
7419         return (0);
7420 }
7421
7422 int
7423 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7424 {
7425         struct sockaddr_in *sin;
7426         int fnd;
7427         struct sockaddr_in *sin_a;
7428         struct sctp_inpcb *inp;
7429         struct sctp_tcb *stcb;
7430         struct sctp_nets *net;
7431
7432         /* Do the malloc first in case it blocks. */
7433         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7434         if (sin == NULL)
7435                 return (ENOMEM);
7436         sin->sin_family = AF_INET;
7437         sin->sin_len = sizeof(*sin);
7438
7439         inp = (struct sctp_inpcb *)so->so_pcb;
7440         if ((inp == NULL) ||
7441             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7442                 /* UDP type and listeners will drop out here */
7443                 SCTP_FREE_SONAME(sin);
7444                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7445                 return (ENOTCONN);
7446         }
7447         SCTP_INP_RLOCK(inp);
7448         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7449         if (stcb) {
7450                 SCTP_TCB_LOCK(stcb);
7451         }
7452         SCTP_INP_RUNLOCK(inp);
7453         if (stcb == NULL) {
7454                 SCTP_FREE_SONAME(sin);
7455                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7456                 return (ECONNRESET);
7457         }
7458         fnd = 0;
7459         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7460                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7461                 if (sin_a->sin_family == AF_INET) {
7462                         fnd = 1;
7463                         sin->sin_port = stcb->rport;
7464                         sin->sin_addr = sin_a->sin_addr;
7465                         break;
7466                 }
7467         }
7468         SCTP_TCB_UNLOCK(stcb);
7469         if (!fnd) {
7470                 /* No IPv4 address */
7471                 SCTP_FREE_SONAME(sin);
7472                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7473                 return (ENOENT);
7474         }
7475         (*addr) = (struct sockaddr *)sin;
7476         return (0);
7477 }
7478
7479 struct pr_usrreqs sctp_usrreqs = {
7480         .pru_abort = sctp_abort,
7481         .pru_accept = sctp_accept,
7482         .pru_attach = sctp_attach,
7483         .pru_bind = sctp_bind,
7484         .pru_connect = sctp_connect,
7485         .pru_control = in_control,
7486         .pru_close = sctp_close,
7487         .pru_detach = sctp_close,
7488         .pru_sopoll = sopoll_generic,
7489         .pru_flush = sctp_flush,
7490         .pru_disconnect = sctp_disconnect,
7491         .pru_listen = sctp_listen,
7492         .pru_peeraddr = sctp_peeraddr,
7493         .pru_send = sctp_sendm,
7494         .pru_shutdown = sctp_shutdown,
7495         .pru_sockaddr = sctp_ingetaddr,
7496         .pru_sosend = sctp_sosend,
7497         .pru_soreceive = sctp_soreceive
7498 };
7499
7500 #endif