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 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                                 chk->sent = SCTP_DATAGRAM_RESEND;
 129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 130                                 chk->rec.data.doing_fast_retransmit = 0;
 131                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 132                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 133                                             chk->whoTo->flight_size,
 134                                             chk->book_size,
 135                                             (uint32_t) (uintptr_t) chk->whoTo,
 136                                             chk->rec.data.TSN_seq);
 137                                 }
 138                                 /* Clear any time so NO RTT is being done */
 139                                 chk->do_rtt = 0;
 140                         }
 141                 }
 142         }
 143 }
 144
 145 #ifdef INET
 146 void
 147 sctp_notify(struct sctp_inpcb *inp,
 148     struct sctp_tcb *stcb,
 149     struct sctp_nets *net,
 150     uint8_t icmp_type,
 151     uint8_t icmp_code,
 152     uint16_t ip_len,
 153     uint16_t next_mtu)
 154 {
 155 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 156         struct socket *so;
 157
 158 #endif
 159         int timer_stopped;
 160
 161         if (icmp_type != ICMP_UNREACH) {
 162                 /* We only care about unreachable */
 163                 SCTP_TCB_UNLOCK(stcb);
 164                 return;
 165         }
 166         if ((icmp_code == ICMP_UNREACH_NET) ||
 167             (icmp_code == ICMP_UNREACH_HOST) ||
 168             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 169             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 170             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 171             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 172             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 173             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 174                 /* Mark the net unreachable. */
 175                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 176                         /* OK, that destination is NOT reachable. */
 177                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 178                         net->dest_state &= ~SCTP_ADDR_PF;
 179                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 180                             stcb, 0,
 181                             (void *)net, SCTP_SO_NOT_LOCKED);
 182                 }
 183                 SCTP_TCB_UNLOCK(stcb);
 184         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 185             (icmp_code == ICMP_UNREACH_PORT)) {
 186                 /* Treat it like an ABORT. */
 187                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 188 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 189                 so = SCTP_INP_SO(inp);
 190                 atomic_add_int(&stcb->asoc.refcnt, 1);
 191                 SCTP_TCB_UNLOCK(stcb);
 192                 SCTP_SOCKET_LOCK(so, 1);
 193                 SCTP_TCB_LOCK(stcb);
 194                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 195 #endif
 196                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 197                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 198 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 199                 SCTP_SOCKET_UNLOCK(so, 1);
 200                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 201 #endif
 202                 /* no need to unlock here, since the TCB is gone */
 203         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 204                 /* Find the next (smaller) MTU */
 205                 if (next_mtu == 0) {
 206                         /*
 207                          * Old type router that does not tell us what the
 208                          * next MTU is. Rats we will have to guess (in a
 209                          * educated fashion of course).
 210                          */
 211                         next_mtu = sctp_get_prev_mtu(ip_len);
 212                 }
 213                 /* Stop the PMTU timer. */
 214                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 215                         timer_stopped = 1;
 216                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 217                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 218                 } else {
 219                         timer_stopped = 0;
 220                 }
 221                 /* Update the path MTU. */
 222                 if (net->mtu > next_mtu) {
 223                         net->mtu = next_mtu;
 224                         if (net->port) {
 225                                 net->mtu -= sizeof(struct udphdr);
 226                         }
 227                 }
 228                 /* Update the association MTU */
 229                 if (stcb->asoc.smallest_mtu > next_mtu) {
 230                         sctp_pathmtu_adjustment(stcb, next_mtu);
 231                 }
 232                 /* Finally, start the PMTU timer if it was running before. */
 233                 if (timer_stopped) {
 234                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 235                 }
 236                 SCTP_TCB_UNLOCK(stcb);
 237         } else {
 238                 SCTP_TCB_UNLOCK(stcb);
 239         }
 240 }
 241
 242 void
 243 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 244 {
 245         struct ip *outer_ip;
 246         struct ip *inner_ip;
 247         struct sctphdr *sh;
 248         struct icmp *icmp;
 249         struct sctp_inpcb *inp;
 250         struct sctp_tcb *stcb;
 251         struct sctp_nets *net;
 252         struct sctp_init_chunk *ch;
 253         struct sockaddr_in src, dst;
 254
 255         if (sa->sa_family != AF_INET ||
 256             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 257                 return;
 258         }
 259         if (PRC_IS_REDIRECT(cmd)) {
 260                 vip = NULL;
 261         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 262                 return;
 263         }
 264         if (vip != NULL) {
 265                 inner_ip = (struct ip *)vip;
 266                 icmp = (struct icmp *)((caddr_t)inner_ip -
 267                     (sizeof(struct icmp) - sizeof(struct ip)));
 268                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 269                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 270                 memset(&src, 0, sizeof(struct sockaddr_in));
 271                 src.sin_family = AF_INET;
 272                 src.sin_len = sizeof(struct sockaddr_in);
 273                 src.sin_port = sh->src_port;
 274                 src.sin_addr = inner_ip->ip_src;
 275                 memset(&dst, 0, sizeof(struct sockaddr_in));
 276                 dst.sin_family = AF_INET;
 277                 dst.sin_len = sizeof(struct sockaddr_in);
 278                 dst.sin_port = sh->dest_port;
 279                 dst.sin_addr = inner_ip->ip_dst;
 280                 /*
 281                  * 'dst' holds the dest of the packet that failed to be
 282                  * sent. 'src' holds our local endpoint address. Thus we
 283                  * reverse the dst and the src in the lookup.
 284                  */
 285                 inp = NULL;
 286                 net = NULL;
 287                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 288                     (struct sockaddr *)&src,
 289                     &inp, &net, 1,
 290                     SCTP_DEFAULT_VRFID);
 291                 if ((stcb != NULL) &&
 292                     (net != NULL) &&
 293                     (inp != NULL) &&
 294                     (inp->sctp_socket != NULL)) {
 295                         /* Check the verification tag */
 296                         if (ntohl(sh->v_tag) != 0) {
 297                                 /*
 298                                  * This must be the verification tag used
 299                                  * for sending out packets. We don't
 300                                  * consider packets reflecting the
 301                                  * verification tag.
 302                                  */
 303                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 304                                         SCTP_TCB_UNLOCK(stcb);
 305                                         return;
 306                                 }
 307                         } else {
 308                                 if (ntohs(outer_ip->ip_len) >=
 309                                     sizeof(struct ip) +
 310                                     8 + (inner_ip->ip_hl << 2) + 20) {
 311                                         /*
 312                                          * In this case we can check if we
 313                                          * got an INIT chunk and if the
 314                                          * initiate tag matches.
 315                                          */
 316                                         ch = (struct sctp_init_chunk *)(sh + 1);
 317                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 318                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 319                                                 SCTP_TCB_UNLOCK(stcb);
 320                                                 return;
 321                                         }
 322                                 } else {
 323                                         SCTP_TCB_UNLOCK(stcb);
 324                                         return;
 325                                 }
 326                         }
 327                         sctp_notify(inp, stcb, net,
 328                             icmp->icmp_type,
 329                             icmp->icmp_code,
 330                             ntohs(inner_ip->ip_len),
 331                             ntohs(icmp->icmp_nextmtu));
 332                 } else {
 333                         if ((stcb == NULL) && (inp != NULL)) {
 334                                 /* reduce ref-count */
 335                                 SCTP_INP_WLOCK(inp);
 336                                 SCTP_INP_DECR_REF(inp);
 337                                 SCTP_INP_WUNLOCK(inp);
 338                         }
 339                         if (stcb) {
 340                                 SCTP_TCB_UNLOCK(stcb);
 341                         }
 342                 }
 343         }
 344         return;
 345 }
 346
 347 #endif
 348
 349 static int
 350 sctp_getcred(SYSCTL_HANDLER_ARGS)
 351 {
 352         struct xucred xuc;
 353         struct sockaddr_in addrs[2];
 354         struct sctp_inpcb *inp;
 355         struct sctp_nets *net;
 356         struct sctp_tcb *stcb;
 357         int error;
 358         uint32_t vrf_id;
 359
 360         /* FIX, for non-bsd is this right? */
 361         vrf_id = SCTP_DEFAULT_VRFID;
 362
 363         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 364
 365         if (error)
 366                 return (error);
 367
 368         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 369         if (error)
 370                 return (error);
 371
 372         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 373             sintosa(&addrs[0]),
 374             &inp, &net, 1, vrf_id);
 375         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 376                 if ((inp != NULL) && (stcb == NULL)) {
 377                         /* reduce ref-count */
 378                         SCTP_INP_WLOCK(inp);
 379                         SCTP_INP_DECR_REF(inp);
 380                         goto cred_can_cont;
 381                 }
 382                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 383                 error = ENOENT;
 384                 goto out;
 385         }
 386         SCTP_TCB_UNLOCK(stcb);
 387         /*
 388          * We use the write lock here, only since in the error leg we need
 389          * it. If we used RLOCK, then we would have to
 390          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 391          * Better to use higher wlock.
 392          */
 393         SCTP_INP_WLOCK(inp);
 394 cred_can_cont:
 395         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 396         if (error) {
 397                 SCTP_INP_WUNLOCK(inp);
 398                 goto out;
 399         }
 400         cru2x(inp->sctp_socket->so_cred, &xuc);
 401         SCTP_INP_WUNLOCK(inp);
 402         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 403 out:
 404         return (error);
 405 }
 406
 407 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 408     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 409
 410
 411 #ifdef INET
 412 static void
 413 sctp_abort(struct socket *so)
 414 {
 415         struct sctp_inpcb *inp;
 416         uint32_t flags;
 417
 418         inp = (struct sctp_inpcb *)so->so_pcb;
 419         if (inp == NULL) {
 420                 return;
 421         }
 422 sctp_must_try_again:
 423         flags = inp->sctp_flags;
 424 #ifdef SCTP_LOG_CLOSING
 425         sctp_log_closing(inp, NULL, 17);
 426 #endif
 427         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 428             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 429 #ifdef SCTP_LOG_CLOSING
 430                 sctp_log_closing(inp, NULL, 16);
 431 #endif
 432                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 433                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 434                 SOCK_LOCK(so);
 435                 SCTP_SB_CLEAR(so->so_snd);
 436                 /*
 437                  * same for the rcv ones, they are only here for the
 438                  * accounting/select.
 439                  */
 440                 SCTP_SB_CLEAR(so->so_rcv);
 441
 442                 /* Now null out the reference, we are completely detached. */
 443                 so->so_pcb = NULL;
 444                 SOCK_UNLOCK(so);
 445         } else {
 446                 flags = inp->sctp_flags;
 447                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 448                         goto sctp_must_try_again;
 449                 }
 450         }
 451         return;
 452 }
 453
 454 static int
 455 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 456 {
 457         struct sctp_inpcb *inp;
 458         struct inpcb *ip_inp;
 459         int error;
 460         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 461
 462         inp = (struct sctp_inpcb *)so->so_pcb;
 463         if (inp != NULL) {
 464                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 465                 return (EINVAL);
 466         }
 467         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 468                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 469                 if (error) {
 470                         return (error);
 471                 }
 472         }
 473         error = sctp_inpcb_alloc(so, vrf_id);
 474         if (error) {
 475                 return (error);
 476         }
 477         inp = (struct sctp_inpcb *)so->so_pcb;
 478         SCTP_INP_WLOCK(inp);
 479         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 480         ip_inp = &inp->ip_inp.inp;
 481         ip_inp->inp_vflag |= INP_IPV4;
 482         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 483         SCTP_INP_WUNLOCK(inp);
 484         return (0);
 485 }
 486
 487 static int
 488 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 489 {
 490         struct sctp_inpcb *inp;
 491
 492         inp = (struct sctp_inpcb *)so->so_pcb;
 493         if (inp == NULL) {
 494                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 495                 return (EINVAL);
 496         }
 497         if (addr != NULL) {
 498                 if ((addr->sa_family != AF_INET) ||
 499                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 500                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 501                         return (EINVAL);
 502                 }
 503         }
 504         return (sctp_inpcb_bind(so, addr, NULL, p));
 505 }
 506
 507 #endif
 508 void
 509 sctp_close(struct socket *so)
 510 {
 511         struct sctp_inpcb *inp;
 512         uint32_t flags;
 513
 514         inp = (struct sctp_inpcb *)so->so_pcb;
 515         if (inp == NULL)
 516                 return;
 517
 518         /*
 519          * Inform all the lower layer assoc that we are done.
 520          */
 521 sctp_must_try_again:
 522         flags = inp->sctp_flags;
 523 #ifdef SCTP_LOG_CLOSING
 524         sctp_log_closing(inp, NULL, 17);
 525 #endif
 526         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 527             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 528                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 529                     (so->so_rcv.sb_cc > 0)) {
 530 #ifdef SCTP_LOG_CLOSING
 531                         sctp_log_closing(inp, NULL, 13);
 532 #endif
 533                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 534                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 535                 } else {
 536 #ifdef SCTP_LOG_CLOSING
 537                         sctp_log_closing(inp, NULL, 14);
 538 #endif
 539                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 540                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 541                 }
 542                 /*
 543                  * The socket is now detached, no matter what the state of
 544                  * the SCTP association.
 545                  */
 546                 SOCK_LOCK(so);
 547                 SCTP_SB_CLEAR(so->so_snd);
 548                 /*
 549                  * same for the rcv ones, they are only here for the
 550                  * accounting/select.
 551                  */
 552                 SCTP_SB_CLEAR(so->so_rcv);
 553
 554                 /* Now null out the reference, we are completely detached. */
 555                 so->so_pcb = NULL;
 556                 SOCK_UNLOCK(so);
 557         } else {
 558                 flags = inp->sctp_flags;
 559                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 560                         goto sctp_must_try_again;
 561                 }
 562         }
 563         return;
 564 }
 565
 566
 567 int
 568 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 569     struct mbuf *control, struct thread *p);
 570
 571
 572 int
 573 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 574     struct mbuf *control, struct thread *p)
 575 {
 576         struct sctp_inpcb *inp;
 577         int error;
 578
 579         inp = (struct sctp_inpcb *)so->so_pcb;
 580         if (inp == NULL) {
 581                 if (control) {
 582                         sctp_m_freem(control);
 583                         control = NULL;
 584                 }
 585                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 586                 sctp_m_freem(m);
 587                 return (EINVAL);
 588         }
 589         /* Got to have an to address if we are NOT a connected socket */
 590         if ((addr == NULL) &&
 591             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 592             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 593                 goto connected_type;
 594         } else if (addr == NULL) {
 595                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 596                 error = EDESTADDRREQ;
 597                 sctp_m_freem(m);
 598                 if (control) {
 599                         sctp_m_freem(control);
 600                         control = NULL;
 601                 }
 602                 return (error);
 603         }
 604 #ifdef INET6
 605         if (addr->sa_family != AF_INET) {
 606                 /* must be a v4 address! */
 607                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 608                 sctp_m_freem(m);
 609                 if (control) {
 610                         sctp_m_freem(control);
 611                         control = NULL;
 612                 }
 613                 error = EDESTADDRREQ;
 614                 return (error);
 615         }
 616 #endif                          /* INET6 */
 617 connected_type:
 618         /* now what about control */
 619         if (control) {
 620                 if (inp->control) {
 621                         SCTP_PRINTF("huh? control set?\n");
 622                         sctp_m_freem(inp->control);
 623                         inp->control = NULL;
 624                 }
 625                 inp->control = control;
 626         }
 627         /* Place the data */
 628         if (inp->pkt) {
 629                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 630                 inp->pkt_last = m;
 631         } else {
 632                 inp->pkt_last = inp->pkt = m;
 633         }
 634         if (
 635         /* FreeBSD uses a flag passed */
 636             ((flags & PRUS_MORETOCOME) == 0)
 637             ) {
 638                 /*
 639                  * note with the current version this code will only be used
 640                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 641                  * re-defining sosend to use the sctp_sosend. One can
 642                  * optionally switch back to this code (by changing back the
 643                  * definitions) but this is not advisable. This code is used
 644                  * by FreeBSD when sending a file with sendfile() though.
 645                  */
 646                 int ret;
 647
 648                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 649                 inp->pkt = NULL;
 650                 inp->control = NULL;
 651                 return (ret);
 652         } else {
 653                 return (0);
 654         }
 655 }
 656
 657 int
 658 sctp_disconnect(struct socket *so)
 659 {
 660         struct sctp_inpcb *inp;
 661
 662         inp = (struct sctp_inpcb *)so->so_pcb;
 663         if (inp == NULL) {
 664                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 665                 return (ENOTCONN);
 666         }
 667         SCTP_INP_RLOCK(inp);
 668         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 669             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 670                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 671                         /* No connection */
 672                         SCTP_INP_RUNLOCK(inp);
 673                         return (0);
 674                 } else {
 675                         struct sctp_association *asoc;
 676                         struct sctp_tcb *stcb;
 677
 678                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 679                         if (stcb == NULL) {
 680                                 SCTP_INP_RUNLOCK(inp);
 681                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 682                                 return (EINVAL);
 683                         }
 684                         SCTP_TCB_LOCK(stcb);
 685                         asoc = &stcb->asoc;
 686                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 687                                 /* We are about to be freed, out of here */
 688                                 SCTP_TCB_UNLOCK(stcb);
 689                                 SCTP_INP_RUNLOCK(inp);
 690                                 return (0);
 691                         }
 692                         if (((so->so_options & SO_LINGER) &&
 693                             (so->so_linger == 0)) ||
 694                             (so->so_rcv.sb_cc > 0)) {
 695                                 if (SCTP_GET_STATE(asoc) !=
 696                                     SCTP_STATE_COOKIE_WAIT) {
 697                                         /* Left with Data unread */
 698                                         struct mbuf *err;
 699
 700                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 701                                         if (err) {
 702                                                 /*
 703                                                  * Fill in the user
 704                                                  * initiated abort
 705                                                  */
 706                                                 struct sctp_paramhdr *ph;
 707
 708                                                 ph = mtod(err, struct sctp_paramhdr *);
 709                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 710                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 711                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 712                                         }
 713                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 714                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 715                                 }
 716                                 SCTP_INP_RUNLOCK(inp);
 717                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 718                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 719                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 720                                 }
 721                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 722                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 723                                 /* No unlock tcb assoc is gone */
 724                                 return (0);
 725                         }
 726                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 727                             TAILQ_EMPTY(&asoc->sent_queue) &&
 728                             (asoc->stream_queue_cnt == 0)) {
 729                                 /* there is nothing queued to send, so done */
 730                                 if (asoc->locked_on_sending) {
 731                                         goto abort_anyway;
 732                                 }
 733                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 734                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 735                                         /* only send SHUTDOWN 1st time thru */
 736                                         struct sctp_nets *netp;
 737
 738                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 739                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 740                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 741                                         }
 742                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 743                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 744                                         sctp_stop_timers_for_shutdown(stcb);
 745                                         if (stcb->asoc.alternate) {
 746                                                 netp = stcb->asoc.alternate;
 747                                         } else {
 748                                                 netp = stcb->asoc.primary_destination;
 749                                         }
 750                                         sctp_send_shutdown(stcb, netp);
 751                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 752                                             stcb->sctp_ep, stcb, netp);
 753                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 754                                             stcb->sctp_ep, stcb, netp);
 755                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 756                                 }
 757                         } else {
 758                                 /*
 759                                  * we still got (or just got) data to send,
 760                                  * so set SHUTDOWN_PENDING
 761                                  */
 762                                 /*
 763                                  * XXX sockets draft says that SCTP_EOF
 764                                  * should be sent with no data. currently,
 765                                  * we will allow user data to be sent first
 766                                  * and move to SHUTDOWN-PENDING
 767                                  */
 768                                 struct sctp_nets *netp;
 769
 770                                 if (stcb->asoc.alternate) {
 771                                         netp = stcb->asoc.alternate;
 772                                 } else {
 773                                         netp = stcb->asoc.primary_destination;
 774                                 }
 775
 776                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 777                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 778                                     netp);
 779                                 if (asoc->locked_on_sending) {
 780                                         /* Locked to send out the data */
 781                                         struct sctp_stream_queue_pending *sp;
 782
 783                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 784                                         if (sp == NULL) {
 785                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 786                                                     asoc->locked_on_sending->stream_no);
 787                                         } else {
 788                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 789                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 790                                         }
 791                                 }
 792                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 793                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 794                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 795                                         struct mbuf *op_err;
 796
 797                         abort_anyway:
 798                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 799                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 800                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 801                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 802                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 803                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 804                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 805                                         }
 806                                         SCTP_INP_RUNLOCK(inp);
 807                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 808                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 809                                         return (0);
 810                                 } else {
 811                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 812                                 }
 813                         }
 814                         soisdisconnecting(so);
 815                         SCTP_TCB_UNLOCK(stcb);
 816                         SCTP_INP_RUNLOCK(inp);
 817                         return (0);
 818                 }
 819                 /* not reached */
 820         } else {
 821                 /* UDP model does not support this */
 822                 SCTP_INP_RUNLOCK(inp);
 823                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 824                 return (EOPNOTSUPP);
 825         }
 826 }
 827
 828 int
 829 sctp_flush(struct socket *so, int how)
 830 {
 831         /*
 832          * We will just clear out the values and let subsequent close clear
 833          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 834          * they will not be able to read the data, the socket will block
 835          * that from happening.
 836          */
 837         struct sctp_inpcb *inp;
 838
 839         inp = (struct sctp_inpcb *)so->so_pcb;
 840         if (inp == NULL) {
 841                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 842                 return (EINVAL);
 843         }
 844         SCTP_INP_RLOCK(inp);
 845         /* For the 1 to many model this does nothing */
 846         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 847                 SCTP_INP_RUNLOCK(inp);
 848                 return (0);
 849         }
 850         SCTP_INP_RUNLOCK(inp);
 851         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 852                 /*
 853                  * First make sure the sb will be happy, we don't use these
 854                  * except maybe the count
 855                  */
 856                 SCTP_INP_WLOCK(inp);
 857                 SCTP_INP_READ_LOCK(inp);
 858                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 859                 SCTP_INP_READ_UNLOCK(inp);
 860                 SCTP_INP_WUNLOCK(inp);
 861                 so->so_rcv.sb_cc = 0;
 862                 so->so_rcv.sb_mbcnt = 0;
 863                 so->so_rcv.sb_mb = NULL;
 864         }
 865         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 866                 /*
 867                  * First make sure the sb will be happy, we don't use these
 868                  * except maybe the count
 869                  */
 870                 so->so_snd.sb_cc = 0;
 871                 so->so_snd.sb_mbcnt = 0;
 872                 so->so_snd.sb_mb = NULL;
 873
 874         }
 875         return (0);
 876 }
 877
 878 int
 879 sctp_shutdown(struct socket *so)
 880 {
 881         struct sctp_inpcb *inp;
 882
 883         inp = (struct sctp_inpcb *)so->so_pcb;
 884         if (inp == NULL) {
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 886                 return (EINVAL);
 887         }
 888         SCTP_INP_RLOCK(inp);
 889         /* For UDP model this is a invalid call */
 890         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 891             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 892                 /* Restore the flags that the soshutdown took away. */
 893                 SOCKBUF_LOCK(&so->so_rcv);
 894                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 895                 SOCKBUF_UNLOCK(&so->so_rcv);
 896                 /* This proc will wakeup for read and do nothing (I hope) */
 897                 SCTP_INP_RUNLOCK(inp);
 898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 899                 return (EOPNOTSUPP);
 900         } else {
 901                 /*
 902                  * Ok, if we reach here its the TCP model and it is either a
 903                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 904                  * against it.
 905                  */
 906                 struct sctp_tcb *stcb;
 907                 struct sctp_association *asoc;
 908                 struct sctp_nets *netp;
 909
 910                 if ((so->so_state &
 911                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (ENOTCONN);
 914                 }
 915                 socantsendmore(so);
 916
 917                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 918                 if (stcb == NULL) {
 919                         /*
 920                          * Ok, we hit the case that the shutdown call was
 921                          * made after an abort or something. Nothing to do
 922                          * now.
 923                          */
 924                         SCTP_INP_RUNLOCK(inp);
 925                         return (0);
 926                 }
 927                 SCTP_TCB_LOCK(stcb);
 928                 asoc = &stcb->asoc;
 929                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 930                         SCTP_TCB_UNLOCK(stcb);
 931                         SCTP_INP_RUNLOCK(inp);
 932                         return (0);
 933                 }
 934                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 935                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 936                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 937                         /*
 938                          * If we are not in or before ESTABLISHED, there is
 939                          * no protocol action required.
 940                          */
 941                         SCTP_TCB_UNLOCK(stcb);
 942                         SCTP_INP_RUNLOCK(inp);
 943                         return (0);
 944                 }
 945                 if (stcb->asoc.alternate) {
 946                         netp = stcb->asoc.alternate;
 947                 } else {
 948                         netp = stcb->asoc.primary_destination;
 949                 }
 950                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 951                     TAILQ_EMPTY(&asoc->send_queue) &&
 952                     TAILQ_EMPTY(&asoc->sent_queue) &&
 953                     (asoc->stream_queue_cnt == 0)) {
 954                         if (asoc->locked_on_sending) {
 955                                 goto abort_anyway;
 956                         }
 957                         /* there is nothing queued to send, so I'm done... */
 958                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 959                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 960                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 961                         sctp_stop_timers_for_shutdown(stcb);
 962                         sctp_send_shutdown(stcb, netp);
 963                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 964                             stcb->sctp_ep, stcb, netp);
 965                 } else {
 966                         /*
 967                          * We still got (or just got) data to send, so set
 968                          * SHUTDOWN_PENDING.
 969                          */
 970                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 971                         if (asoc->locked_on_sending) {
 972                                 /* Locked to send out the data */
 973                                 struct sctp_stream_queue_pending *sp;
 974
 975                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 976                                 if (sp == NULL) {
 977                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 978                                             asoc->locked_on_sending->stream_no);
 979                                 } else {
 980                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 981                                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 982                                         }
 983                                 }
 984                         }
 985                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 986                             TAILQ_EMPTY(&asoc->sent_queue) &&
 987                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 988                                 struct mbuf *op_err;
 989
 990                 abort_anyway:
 991                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 992                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 993                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 994                                     op_err, SCTP_SO_LOCKED);
 995                                 SCTP_INP_RUNLOCK(inp);
 996                                 return (0);
 997                         }
 998                 }
 999                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
1000                 /*
1001                  * XXX: Why do this in the case where we have still data
1002                  * queued?
1003                  */
1004                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1005                 SCTP_TCB_UNLOCK(stcb);
1006                 SCTP_INP_RUNLOCK(inp);
1007                 return (0);
1008         }
1009 }
1010
1011 /*
1012  * copies a "user" presentable address and removes embedded scope, etc.
1013  * returns 0 on success, 1 on error
1014  */
1015 static uint32_t
1016 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1017 {
1018 #ifdef INET6
1019         struct sockaddr_in6 lsa6;
1020
1021         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1022             &lsa6);
1023 #endif
1024         memcpy(ss, sa, sa->sa_len);
1025         return (0);
1026 }
1027
1028
1029
1030 /*
1031  * NOTE: assumes addr lock is held
1032  */
1033 static size_t
1034 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1035     struct sctp_tcb *stcb,
1036     size_t limit,
1037     struct sockaddr_storage *sas,
1038     uint32_t vrf_id)
1039 {
1040         struct sctp_ifn *sctp_ifn;
1041         struct sctp_ifa *sctp_ifa;
1042         size_t actual;
1043         int loopback_scope;
1044
1045 #if defined(INET)
1046         int ipv4_local_scope, ipv4_addr_legal;
1047
1048 #endif
1049 #if defined(INET6)
1050         int local_scope, site_scope, ipv6_addr_legal;
1051
1052 #endif
1053         struct sctp_vrf *vrf;
1054
1055         actual = 0;
1056         if (limit <= 0)
1057                 return (actual);
1058
1059         if (stcb) {
1060                 /* Turn on all the appropriate scope */
1061                 loopback_scope = stcb->asoc.scope.loopback_scope;
1062 #if defined(INET)
1063                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1064                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1065 #endif
1066 #if defined(INET6)
1067                 local_scope = stcb->asoc.scope.local_scope;
1068                 site_scope = stcb->asoc.scope.site_scope;
1069                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1070 #endif
1071         } else {
1072                 /* Use generic values for endpoints. */
1073                 loopback_scope = 1;
1074 #if defined(INET)
1075                 ipv4_local_scope = 1;
1076 #endif
1077 #if defined(INET6)
1078                 local_scope = 1;
1079                 site_scope = 1;
1080 #endif
1081                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1082 #if defined(INET6)
1083                         ipv6_addr_legal = 1;
1084 #endif
1085 #if defined(INET)
1086                         if (SCTP_IPV6_V6ONLY(inp)) {
1087                                 ipv4_addr_legal = 0;
1088                         } else {
1089                                 ipv4_addr_legal = 1;
1090                         }
1091 #endif
1092                 } else {
1093 #if defined(INET6)
1094                         ipv6_addr_legal = 0;
1095 #endif
1096 #if defined(INET)
1097                         ipv4_addr_legal = 1;
1098 #endif
1099                 }
1100         }
1101         vrf = sctp_find_vrf(vrf_id);
1102         if (vrf == NULL) {
1103                 return (0);
1104         }
1105         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1106                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1107                         if ((loopback_scope == 0) &&
1108                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1109                                 /* Skip loopback if loopback_scope not set */
1110                                 continue;
1111                         }
1112                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1113                                 if (stcb) {
1114                                         /*
1115                                          * For the BOUND-ALL case, the list
1116                                          * associated with a TCB is Always
1117                                          * considered a reverse list.. i.e.
1118                                          * it lists addresses that are NOT
1119                                          * part of the association. If this
1120                                          * is one of those we must skip it.
1121                                          */
1122                                         if (sctp_is_addr_restricted(stcb,
1123                                             sctp_ifa)) {
1124                                                 continue;
1125                                         }
1126                                 }
1127                                 switch (sctp_ifa->address.sa.sa_family) {
1128 #ifdef INET
1129                                 case AF_INET:
1130                                         if (ipv4_addr_legal) {
1131                                                 struct sockaddr_in *sin;
1132
1133                                                 sin = &sctp_ifa->address.sin;
1134                                                 if (sin->sin_addr.s_addr == 0) {
1135                                                         /*
1136                                                          * we skip
1137                                                          * unspecifed
1138                                                          * addresses
1139                                                          */
1140                                                         continue;
1141                                                 }
1142                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1143                                                     &sin->sin_addr) != 0) {
1144                                                         continue;
1145                                                 }
1146                                                 if ((ipv4_local_scope == 0) &&
1147                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1148                                                         continue;
1149                                                 }
1150 #ifdef INET6
1151                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1152                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1153                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1154                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1155                                                         actual += sizeof(struct sockaddr_in6);
1156                                                 } else {
1157 #endif
1158                                                         memcpy(sas, sin, sizeof(*sin));
1159                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1160                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1161                                                         actual += sizeof(*sin);
1162 #ifdef INET6
1163                                                 }
1164 #endif
1165                                                 if (actual >= limit) {
1166                                                         return (actual);
1167                                                 }
1168                                         } else {
1169                                                 continue;
1170                                         }
1171                                         break;
1172 #endif
1173 #ifdef INET6
1174                                 case AF_INET6:
1175                                         if (ipv6_addr_legal) {
1176                                                 struct sockaddr_in6 *sin6;
1177
1178                                                 sin6 = &sctp_ifa->address.sin6;
1179                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1180                                                         /*
1181                                                          * we skip
1182                                                          * unspecifed
1183                                                          * addresses
1184                                                          */
1185                                                         continue;
1186                                                 }
1187                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1188                                                     &sin6->sin6_addr) != 0) {
1189                                                         continue;
1190                                                 }
1191                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1192                                                         if (local_scope == 0)
1193                                                                 continue;
1194                                                         if (sin6->sin6_scope_id == 0) {
1195                                                                 if (sa6_recoverscope(sin6) != 0)
1196                                                                         /*
1197                                                                          *
1198                                                                          * bad
1199                                                                          *
1200                                                                          * li
1201                                                                          * nk
1202                                                                          *
1203                                                                          * loc
1204                                                                          * al
1205                                                                          *
1206                                                                          * add
1207                                                                          * re
1208                                                                          * ss
1209                                                                          * */
1210                                                                         continue;
1211                                                         }
1212                                                 }
1213                                                 if ((site_scope == 0) &&
1214                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1215                                                         continue;
1216                                                 }
1217                                                 memcpy(sas, sin6, sizeof(*sin6));
1218                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1219                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1220                                                 actual += sizeof(*sin6);
1221                                                 if (actual >= limit) {
1222                                                         return (actual);
1223                                                 }
1224                                         } else {
1225                                                 continue;
1226                                         }
1227                                         break;
1228 #endif
1229                                 default:
1230                                         /* TSNH */
1231                                         break;
1232                                 }
1233                         }
1234                 }
1235         } else {
1236                 struct sctp_laddr *laddr;
1237
1238                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1239                         if (stcb) {
1240                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1241                                         continue;
1242                                 }
1243                         }
1244                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1245                                 continue;
1246                         switch (laddr->ifa->address.sa.sa_family) {
1247 #ifdef INET
1248                         case AF_INET:
1249                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1250                                 break;
1251 #endif
1252 #ifdef INET6
1253                         case AF_INET6:
1254                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1255                                 break;
1256 #endif
1257                         default:
1258                                 /* TSNH */
1259                                 break;
1260                         }
1261                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1262                             laddr->ifa->address.sa.sa_len);
1263                         actual += laddr->ifa->address.sa.sa_len;
1264                         if (actual >= limit) {
1265                                 return (actual);
1266                         }
1267                 }
1268         }
1269         return (actual);
1270 }
1271
1272 static size_t
1273 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1274     struct sctp_tcb *stcb,
1275     size_t limit,
1276     struct sockaddr_storage *sas)
1277 {
1278         size_t size = 0;
1279
1280         SCTP_IPI_ADDR_RLOCK();
1281         /* fill up addresses for the endpoint's default vrf */
1282         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1283             inp->def_vrf_id);
1284         SCTP_IPI_ADDR_RUNLOCK();
1285         return (size);
1286 }
1287
1288 /*
1289  * NOTE: assumes addr lock is held
1290  */
1291 static int
1292 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1293 {
1294         int cnt = 0;
1295         struct sctp_vrf *vrf = NULL;
1296
1297         /*
1298          * In both sub-set bound an bound_all cases we return the MAXIMUM
1299          * number of addresses that you COULD get. In reality the sub-set
1300          * bound may have an exclusion list for a given TCB OR in the
1301          * bound-all case a TCB may NOT include the loopback or other
1302          * addresses as well.
1303          */
1304         vrf = sctp_find_vrf(vrf_id);
1305         if (vrf == NULL) {
1306                 return (0);
1307         }
1308         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1309                 struct sctp_ifn *sctp_ifn;
1310                 struct sctp_ifa *sctp_ifa;
1311
1312                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1313                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1314                                 /* Count them if they are the right type */
1315                                 switch (sctp_ifa->address.sa.sa_family) {
1316 #ifdef INET
1317                                 case AF_INET:
1318 #ifdef INET6
1319                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1320                                                 cnt += sizeof(struct sockaddr_in6);
1321                                         else
1322                                                 cnt += sizeof(struct sockaddr_in);
1323 #else
1324                                         cnt += sizeof(struct sockaddr_in);
1325 #endif
1326                                         break;
1327 #endif
1328 #ifdef INET6
1329                                 case AF_INET6:
1330                                         cnt += sizeof(struct sockaddr_in6);
1331                                         break;
1332 #endif
1333                                 default:
1334                                         break;
1335                                 }
1336                         }
1337                 }
1338         } else {
1339                 struct sctp_laddr *laddr;
1340
1341                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1342                         switch (laddr->ifa->address.sa.sa_family) {
1343 #ifdef INET
1344                         case AF_INET:
1345 #ifdef INET6
1346                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1347                                         cnt += sizeof(struct sockaddr_in6);
1348                                 else
1349                                         cnt += sizeof(struct sockaddr_in);
1350 #else
1351                                 cnt += sizeof(struct sockaddr_in);
1352 #endif
1353                                 break;
1354 #endif
1355 #ifdef INET6
1356                         case AF_INET6:
1357                                 cnt += sizeof(struct sockaddr_in6);
1358                                 break;
1359 #endif
1360                         default:
1361                                 break;
1362                         }
1363                 }
1364         }
1365         return (cnt);
1366 }
1367
1368 static int
1369 sctp_count_max_addresses(struct sctp_inpcb *inp)
1370 {
1371         int cnt = 0;
1372
1373         SCTP_IPI_ADDR_RLOCK();
1374         /* count addresses for the endpoint's default VRF */
1375         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1376         SCTP_IPI_ADDR_RUNLOCK();
1377         return (cnt);
1378 }
1379
1380 static int
1381 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1382     size_t optsize, void *p, int delay)
1383 {
1384         int error = 0;
1385         int creat_lock_on = 0;
1386         struct sctp_tcb *stcb = NULL;
1387         struct sockaddr *sa;
1388         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1389         uint32_t vrf_id;
1390         int bad_addresses = 0;
1391         sctp_assoc_t *a_id;
1392
1393         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1394
1395         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1396             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1397                 /* We are already connected AND the TCP model */
1398                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1399                 return (EADDRINUSE);
1400         }
1401         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1402             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1403                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1404                 return (EINVAL);
1405         }
1406         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1407                 SCTP_INP_RLOCK(inp);
1408                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1409                 SCTP_INP_RUNLOCK(inp);
1410         }
1411         if (stcb) {
1412                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1413                 return (EALREADY);
1414         }
1415         SCTP_INP_INCR_REF(inp);
1416         SCTP_ASOC_CREATE_LOCK(inp);
1417         creat_lock_on = 1;
1418         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1419             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1420                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1421                 error = EFAULT;
1422                 goto out_now;
1423         }
1424         totaddrp = (unsigned int *)optval;
1425         totaddr = *totaddrp;
1426         sa = (struct sockaddr *)(totaddrp + 1);
1427         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1428         if ((stcb != NULL) || bad_addresses) {
1429                 /* Already have or am bring up an association */
1430                 SCTP_ASOC_CREATE_UNLOCK(inp);
1431                 creat_lock_on = 0;
1432                 if (stcb)
1433                         SCTP_TCB_UNLOCK(stcb);
1434                 if (bad_addresses == 0) {
1435                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1436                         error = EALREADY;
1437                 }
1438                 goto out_now;
1439         }
1440 #ifdef INET6
1441         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1442             (num_v6 > 0)) {
1443                 error = EINVAL;
1444                 goto out_now;
1445         }
1446         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1447             (num_v4 > 0)) {
1448                 struct in6pcb *inp6;
1449
1450                 inp6 = (struct in6pcb *)inp;
1451                 if (SCTP_IPV6_V6ONLY(inp6)) {
1452                         /*
1453                          * if IPV6_V6ONLY flag, ignore connections destined
1454                          * to a v4 addr or v4-mapped addr
1455                          */
1456                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1457                         error = EINVAL;
1458                         goto out_now;
1459                 }
1460         }
1461 #endif                          /* INET6 */
1462         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1463             SCTP_PCB_FLAGS_UNBOUND) {
1464                 /* Bind a ephemeral port */
1465                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1466                 if (error) {
1467                         goto out_now;
1468                 }
1469         }
1470         /* FIX ME: do we want to pass in a vrf on the connect call? */
1471         vrf_id = inp->def_vrf_id;
1472
1473
1474         /* We are GOOD to go */
1475         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1476             inp->sctp_ep.pre_open_stream_count,
1477             (struct thread *)p
1478             );
1479         if (stcb == NULL) {
1480                 /* Gak! no memory */
1481                 goto out_now;
1482         }
1483         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1484                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1485                 /* Set the connected flag so we can queue data */
1486                 soisconnecting(so);
1487         }
1488         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1489         /* move to second address */
1490         switch (sa->sa_family) {
1491 #ifdef INET
1492         case AF_INET:
1493                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1494                 break;
1495 #endif
1496 #ifdef INET6
1497         case AF_INET6:
1498                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1499                 break;
1500 #endif
1501         default:
1502                 break;
1503         }
1504
1505         error = 0;
1506         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1507         /* Fill in the return id */
1508         if (error) {
1509                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1510                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1511                 goto out_now;
1512         }
1513         a_id = (sctp_assoc_t *) optval;
1514         *a_id = sctp_get_associd(stcb);
1515
1516         /* initialize authentication parameters for the assoc */
1517         sctp_initialize_auth_params(inp, stcb);
1518
1519         if (delay) {
1520                 /* doing delayed connection */
1521                 stcb->asoc.delayed_connection = 1;
1522                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1523         } else {
1524                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1525                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1526         }
1527         SCTP_TCB_UNLOCK(stcb);
1528         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1529                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1530                 /* Set the connected flag so we can queue data */
1531                 soisconnecting(so);
1532         }
1533 out_now:
1534         if (creat_lock_on) {
1535                 SCTP_ASOC_CREATE_UNLOCK(inp);
1536         }
1537         SCTP_INP_DECR_REF(inp);
1538         return (error);
1539 }
1540
1541 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1542         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1543             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1544                 SCTP_INP_RLOCK(inp); \
1545                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1546                 if (stcb) { \
1547                         SCTP_TCB_LOCK(stcb); \
1548                 } \
1549                 SCTP_INP_RUNLOCK(inp); \
1550         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1551                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1552                 if (stcb == NULL) { \
1553                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1554                         error = ENOENT; \
1555                         break; \
1556                 } \
1557         } else { \
1558                 stcb = NULL; \
1559         } \
1560   }
1561
1562
1563 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1564         if (size < sizeof(type)) { \
1565                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1566                 error = EINVAL; \
1567                 break; \
1568         } else { \
1569                 destp = (type *)srcp; \
1570         } \
1571       }
1572
1573 static int
1574 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1575     void *p)
1576 {
1577         struct sctp_inpcb *inp = NULL;
1578         int error, val = 0;
1579         struct sctp_tcb *stcb = NULL;
1580
1581         if (optval == NULL) {
1582                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1583                 return (EINVAL);
1584         }
1585         inp = (struct sctp_inpcb *)so->so_pcb;
1586         if (inp == NULL) {
1587                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1588                 return EINVAL;
1589         }
1590         error = 0;
1591
1592         switch (optname) {
1593         case SCTP_NODELAY:
1594         case SCTP_AUTOCLOSE:
1595         case SCTP_EXPLICIT_EOR:
1596         case SCTP_AUTO_ASCONF:
1597         case SCTP_DISABLE_FRAGMENTS:
1598         case SCTP_I_WANT_MAPPED_V4_ADDR:
1599         case SCTP_USE_EXT_RCVINFO:
1600                 SCTP_INP_RLOCK(inp);
1601                 switch (optname) {
1602                 case SCTP_DISABLE_FRAGMENTS:
1603                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1604                         break;
1605                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1606                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1607                         break;
1608                 case SCTP_AUTO_ASCONF:
1609                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1610                                 /* only valid for bound all sockets */
1611                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1612                         } else {
1613                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1614                                 error = EINVAL;
1615                                 goto flags_out;
1616                         }
1617                         break;
1618                 case SCTP_EXPLICIT_EOR:
1619                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1620                         break;
1621                 case SCTP_NODELAY:
1622                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1623                         break;
1624                 case SCTP_USE_EXT_RCVINFO:
1625                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1626                         break;
1627                 case SCTP_AUTOCLOSE:
1628                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1629                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1630                         else
1631                                 val = 0;
1632                         break;
1633
1634                 default:
1635                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1636                         error = ENOPROTOOPT;
1637                 }               /* end switch (sopt->sopt_name) */
1638                 if (*optsize < sizeof(val)) {
1639                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1640                         error = EINVAL;
1641                 }
1642 flags_out:
1643                 SCTP_INP_RUNLOCK(inp);
1644                 if (error == 0) {
1645                         /* return the option value */
1646                         *(int *)optval = val;
1647                         *optsize = sizeof(val);
1648                 }
1649                 break;
1650         case SCTP_GET_PACKET_LOG:
1651                 {
1652 #ifdef  SCTP_PACKET_LOGGING
1653                         uint8_t *target;
1654                         int ret;
1655
1656                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1657                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1658                         *optsize = ret;
1659 #else
1660                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1661                         error = EOPNOTSUPP;
1662 #endif
1663                         break;
1664                 }
1665         case SCTP_REUSE_PORT:
1666                 {
1667                         uint32_t *value;
1668
1669                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1670                                 /* Can't do this for a 1-m socket */
1671                                 error = EINVAL;
1672                                 break;
1673                         }
1674                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1675                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1676                         *optsize = sizeof(uint32_t);
1677                         break;
1678                 }
1679         case SCTP_PARTIAL_DELIVERY_POINT:
1680                 {
1681                         uint32_t *value;
1682
1683                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1684                         *value = inp->partial_delivery_point;
1685                         *optsize = sizeof(uint32_t);
1686                         break;
1687                 }
1688         case SCTP_FRAGMENT_INTERLEAVE:
1689                 {
1690                         uint32_t *value;
1691
1692                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1693                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1694                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1695                                         *value = SCTP_FRAG_LEVEL_2;
1696                                 } else {
1697                                         *value = SCTP_FRAG_LEVEL_1;
1698                                 }
1699                         } else {
1700                                 *value = SCTP_FRAG_LEVEL_0;
1701                         }
1702                         *optsize = sizeof(uint32_t);
1703                         break;
1704                 }
1705         case SCTP_INTERLEAVING_SUPPORTED:
1706                 {
1707                         struct sctp_assoc_value *av;
1708
1709                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1710                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1711
1712                         if (stcb) {
1713                                 av->assoc_value = stcb->asoc.idata_supported;
1714                                 SCTP_TCB_UNLOCK(stcb);
1715                         } else {
1716                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1717                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1718                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1719                                         SCTP_INP_RLOCK(inp);
1720                                         if (inp->idata_supported) {
1721                                                 av->assoc_value = 1;
1722                                         } else {
1723                                                 av->assoc_value = 0;
1724                                         }
1725                                         SCTP_INP_RUNLOCK(inp);
1726                                 } else {
1727                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1728                                         error = EINVAL;
1729                                 }
1730                         }
1731                         if (error == 0) {
1732                                 *optsize = sizeof(struct sctp_assoc_value);
1733                         }
1734                         break;
1735                 }
1736         case SCTP_CMT_ON_OFF:
1737                 {
1738                         struct sctp_assoc_value *av;
1739
1740                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1741                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1742                         if (stcb) {
1743                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1744                                 SCTP_TCB_UNLOCK(stcb);
1745                         } else {
1746                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1747                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1748                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1749                                         SCTP_INP_RLOCK(inp);
1750                                         av->assoc_value = inp->sctp_cmt_on_off;
1751                                         SCTP_INP_RUNLOCK(inp);
1752                                 } else {
1753                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1754                                         error = EINVAL;
1755                                 }
1756                         }
1757                         if (error == 0) {
1758                                 *optsize = sizeof(struct sctp_assoc_value);
1759                         }
1760                         break;
1761                 }
1762         case SCTP_PLUGGABLE_CC:
1763                 {
1764                         struct sctp_assoc_value *av;
1765
1766                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1767                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1768                         if (stcb) {
1769                                 av->assoc_value = stcb->asoc.congestion_control_module;
1770                                 SCTP_TCB_UNLOCK(stcb);
1771                         } else {
1772                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1773                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1774                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1775                                         SCTP_INP_RLOCK(inp);
1776                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1777                                         SCTP_INP_RUNLOCK(inp);
1778                                 } else {
1779                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1780                                         error = EINVAL;
1781                                 }
1782                         }
1783                         if (error == 0) {
1784                                 *optsize = sizeof(struct sctp_assoc_value);
1785                         }
1786                         break;
1787                 }
1788         case SCTP_CC_OPTION:
1789                 {
1790                         struct sctp_cc_option *cc_opt;
1791
1792                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1793                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1794                         if (stcb == NULL) {
1795                                 error = EINVAL;
1796                         } else {
1797                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1798                                         error = ENOTSUP;
1799                                 } else {
1800                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1801                                         *optsize = sizeof(struct sctp_cc_option);
1802                                 }
1803                                 SCTP_TCB_UNLOCK(stcb);
1804                         }
1805                         break;
1806                 }
1807         case SCTP_PLUGGABLE_SS:
1808                 {
1809                         struct sctp_assoc_value *av;
1810
1811                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1812                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1813                         if (stcb) {
1814                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1815                                 SCTP_TCB_UNLOCK(stcb);
1816                         } else {
1817                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1818                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1819                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1820                                         SCTP_INP_RLOCK(inp);
1821                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1822                                         SCTP_INP_RUNLOCK(inp);
1823                                 } else {
1824                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1825                                         error = EINVAL;
1826                                 }
1827                         }
1828                         if (error == 0) {
1829                                 *optsize = sizeof(struct sctp_assoc_value);
1830                         }
1831                         break;
1832                 }
1833         case SCTP_SS_VALUE:
1834                 {
1835                         struct sctp_stream_value *av;
1836
1837                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1838                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1839                         if (stcb) {
1840                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1841                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1842                                     &av->stream_value) < 0)) {
1843                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1844                                         error = EINVAL;
1845                                 } else {
1846                                         *optsize = sizeof(struct sctp_stream_value);
1847                                 }
1848                                 SCTP_TCB_UNLOCK(stcb);
1849                         } else {
1850                                 /*
1851                                  * Can't get stream value without
1852                                  * association
1853                                  */
1854                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1855                                 error = EINVAL;
1856                         }
1857                         break;
1858                 }
1859         case SCTP_GET_ADDR_LEN:
1860                 {
1861                         struct sctp_assoc_value *av;
1862
1863                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1864                         error = EINVAL;
1865 #ifdef INET
1866                         if (av->assoc_value == AF_INET) {
1867                                 av->assoc_value = sizeof(struct sockaddr_in);
1868                                 error = 0;
1869                         }
1870 #endif
1871 #ifdef INET6
1872                         if (av->assoc_value == AF_INET6) {
1873                                 av->assoc_value = sizeof(struct sockaddr_in6);
1874                                 error = 0;
1875                         }
1876 #endif
1877                         if (error) {
1878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1879                         } else {
1880                                 *optsize = sizeof(struct sctp_assoc_value);
1881                         }
1882                         break;
1883                 }
1884         case SCTP_GET_ASSOC_NUMBER:
1885                 {
1886                         uint32_t *value, cnt;
1887
1888                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1889                         SCTP_INP_RLOCK(inp);
1890                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1891                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1892                                 /* Can't do this for a 1-1 socket */
1893                                 error = EINVAL;
1894                                 SCTP_INP_RUNLOCK(inp);
1895                                 break;
1896                         }
1897                         cnt = 0;
1898                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1899                                 cnt++;
1900                         }
1901                         SCTP_INP_RUNLOCK(inp);
1902                         *value = cnt;
1903                         *optsize = sizeof(uint32_t);
1904                         break;
1905                 }
1906         case SCTP_GET_ASSOC_ID_LIST:
1907                 {
1908                         struct sctp_assoc_ids *ids;
1909                         uint32_t at;
1910                         size_t limit;
1911
1912                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1913                         SCTP_INP_RLOCK(inp);
1914                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1915                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1916                                 /* Can't do this for a 1-1 socket */
1917                                 error = EINVAL;
1918                                 SCTP_INP_RUNLOCK(inp);
1919                                 break;
1920                         }
1921                         at = 0;
1922                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1923                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1924                                 if (at < limit) {
1925                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1926                                         if (at == 0) {
1927                                                 error = EINVAL;
1928                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1929                                                 break;
1930                                         }
1931                                 } else {
1932                                         error = EINVAL;
1933                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1934                                         break;
1935                                 }
1936                         }
1937                         SCTP_INP_RUNLOCK(inp);
1938                         if (error == 0) {
1939                                 ids->gaids_number_of_ids = at;
1940                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1941                         }
1942                         break;
1943                 }
1944         case SCTP_CONTEXT:
1945                 {
1946                         struct sctp_assoc_value *av;
1947
1948                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1949                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1950
1951                         if (stcb) {
1952                                 av->assoc_value = stcb->asoc.context;
1953                                 SCTP_TCB_UNLOCK(stcb);
1954                         } else {
1955                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1956                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1957                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1958                                         SCTP_INP_RLOCK(inp);
1959                                         av->assoc_value = inp->sctp_context;
1960                                         SCTP_INP_RUNLOCK(inp);
1961                                 } else {
1962                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1963                                         error = EINVAL;
1964                                 }
1965                         }
1966                         if (error == 0) {
1967                                 *optsize = sizeof(struct sctp_assoc_value);
1968                         }
1969                         break;
1970                 }
1971         case SCTP_VRF_ID:
1972                 {
1973                         uint32_t *default_vrfid;
1974
1975                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1976                         *default_vrfid = inp->def_vrf_id;
1977                         *optsize = sizeof(uint32_t);
1978                         break;
1979                 }
1980         case SCTP_GET_ASOC_VRF:
1981                 {
1982                         struct sctp_assoc_value *id;
1983
1984                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1985                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1986                         if (stcb == NULL) {
1987                                 error = EINVAL;
1988                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1989                         } else {
1990                                 id->assoc_value = stcb->asoc.vrf_id;
1991                                 *optsize = sizeof(struct sctp_assoc_value);
1992                         }
1993                         break;
1994                 }
1995         case SCTP_GET_VRF_IDS:
1996                 {
1997                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1998                         error = EOPNOTSUPP;
1999                         break;
2000                 }
2001         case SCTP_GET_NONCE_VALUES:
2002                 {
2003                         struct sctp_get_nonce_values *gnv;
2004
2005                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2006                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2007
2008                         if (stcb) {
2009                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2010                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2011                                 SCTP_TCB_UNLOCK(stcb);
2012                                 *optsize = sizeof(struct sctp_get_nonce_values);
2013                         } else {
2014                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2015                                 error = ENOTCONN;
2016                         }
2017                         break;
2018                 }
2019         case SCTP_DELAYED_SACK:
2020                 {
2021                         struct sctp_sack_info *sack;
2022
2023                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2024                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2025                         if (stcb) {
2026                                 sack->sack_delay = stcb->asoc.delayed_ack;
2027                                 sack->sack_freq = stcb->asoc.sack_freq;
2028                                 SCTP_TCB_UNLOCK(stcb);
2029                         } else {
2030                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2031                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2032                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2033                                         SCTP_INP_RLOCK(inp);
2034                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2035                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2036                                         SCTP_INP_RUNLOCK(inp);
2037                                 } else {
2038                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2039                                         error = EINVAL;
2040                                 }
2041                         }
2042                         if (error == 0) {
2043                                 *optsize = sizeof(struct sctp_sack_info);
2044                         }
2045                         break;
2046                 }
2047         case SCTP_GET_SNDBUF_USE:
2048                 {
2049                         struct sctp_sockstat *ss;
2050
2051                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2052                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2053
2054                         if (stcb) {
2055                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2056                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2057                                     stcb->asoc.size_on_all_streams);
2058                                 SCTP_TCB_UNLOCK(stcb);
2059                                 *optsize = sizeof(struct sctp_sockstat);
2060                         } else {
2061                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2062                                 error = ENOTCONN;
2063                         }
2064                         break;
2065                 }
2066         case SCTP_MAX_BURST:
2067                 {
2068                         struct sctp_assoc_value *av;
2069
2070                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2071                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2072
2073                         if (stcb) {
2074                                 av->assoc_value = stcb->asoc.max_burst;
2075                                 SCTP_TCB_UNLOCK(stcb);
2076                         } else {
2077                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2078                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2079                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2080                                         SCTP_INP_RLOCK(inp);
2081                                         av->assoc_value = inp->sctp_ep.max_burst;
2082                                         SCTP_INP_RUNLOCK(inp);
2083                                 } else {
2084                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2085                                         error = EINVAL;
2086                                 }
2087                         }
2088                         if (error == 0) {
2089                                 *optsize = sizeof(struct sctp_assoc_value);
2090                         }
2091                         break;
2092                 }
2093         case SCTP_MAXSEG:
2094                 {
2095                         struct sctp_assoc_value *av;
2096                         int ovh;
2097
2098                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2099                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2100
2101                         if (stcb) {
2102                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2103                                 SCTP_TCB_UNLOCK(stcb);
2104                         } else {
2105                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2106                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2107                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2108                                         SCTP_INP_RLOCK(inp);
2109                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2110                                                 ovh = SCTP_MED_OVERHEAD;
2111                                         } else {
2112                                                 ovh = SCTP_MED_V4_OVERHEAD;
2113                                         }
2114                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2115                                                 av->assoc_value = 0;
2116                                         else
2117                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2118                                         SCTP_INP_RUNLOCK(inp);
2119                                 } else {
2120                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2121                                         error = EINVAL;
2122                                 }
2123                         }
2124                         if (error == 0) {
2125                                 *optsize = sizeof(struct sctp_assoc_value);
2126                         }
2127                         break;
2128                 }
2129         case SCTP_GET_STAT_LOG:
2130                 error = sctp_fill_stat_log(optval, optsize);
2131                 break;
2132         case SCTP_EVENTS:
2133                 {
2134                         struct sctp_event_subscribe *events;
2135
2136                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2137                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2138                         SCTP_INP_RLOCK(inp);
2139                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2140                                 events->sctp_data_io_event = 1;
2141
2142                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2143                                 events->sctp_association_event = 1;
2144
2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2146                                 events->sctp_address_event = 1;
2147
2148                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2149                                 events->sctp_send_failure_event = 1;
2150
2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2152                                 events->sctp_peer_error_event = 1;
2153
2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2155                                 events->sctp_shutdown_event = 1;
2156
2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2158                                 events->sctp_partial_delivery_event = 1;
2159
2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2161                                 events->sctp_adaptation_layer_event = 1;
2162
2163                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2164                                 events->sctp_authentication_event = 1;
2165
2166                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2167                                 events->sctp_sender_dry_event = 1;
2168
2169                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2170                                 events->sctp_stream_reset_event = 1;
2171                         SCTP_INP_RUNLOCK(inp);
2172                         *optsize = sizeof(struct sctp_event_subscribe);
2173                         break;
2174                 }
2175         case SCTP_ADAPTATION_LAYER:
2176                 {
2177                         uint32_t *value;
2178
2179                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2180
2181                         SCTP_INP_RLOCK(inp);
2182                         *value = inp->sctp_ep.adaptation_layer_indicator;
2183                         SCTP_INP_RUNLOCK(inp);
2184                         *optsize = sizeof(uint32_t);
2185                         break;
2186                 }
2187         case SCTP_SET_INITIAL_DBG_SEQ:
2188                 {
2189                         uint32_t *value;
2190
2191                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2192                         SCTP_INP_RLOCK(inp);
2193                         *value = inp->sctp_ep.initial_sequence_debug;
2194                         SCTP_INP_RUNLOCK(inp);
2195                         *optsize = sizeof(uint32_t);
2196                         break;
2197                 }
2198         case SCTP_GET_LOCAL_ADDR_SIZE:
2199                 {
2200                         uint32_t *value;
2201
2202                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2203                         SCTP_INP_RLOCK(inp);
2204                         *value = sctp_count_max_addresses(inp);
2205                         SCTP_INP_RUNLOCK(inp);
2206                         *optsize = sizeof(uint32_t);
2207                         break;
2208                 }
2209         case SCTP_GET_REMOTE_ADDR_SIZE:
2210                 {
2211                         uint32_t *value;
2212                         size_t size;
2213                         struct sctp_nets *net;
2214
2215                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2216                         /* FIXME MT: change to sctp_assoc_value? */
2217                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2218
2219                         if (stcb) {
2220                                 size = 0;
2221                                 /* Count the sizes */
2222                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2223                                         switch (net->ro._l_addr.sa.sa_family) {
2224 #ifdef INET
2225                                         case AF_INET:
2226 #ifdef INET6
2227                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2228                                                         size += sizeof(struct sockaddr_in6);
2229                                                 } else {
2230                                                         size += sizeof(struct sockaddr_in);
2231                                                 }
2232 #else
2233                                                 size += sizeof(struct sockaddr_in);
2234 #endif
2235                                                 break;
2236 #endif
2237 #ifdef INET6
2238                                         case AF_INET6:
2239                                                 size += sizeof(struct sockaddr_in6);
2240                                                 break;
2241 #endif
2242                                         default:
2243                                                 break;
2244                                         }
2245                                 }
2246                                 SCTP_TCB_UNLOCK(stcb);
2247                                 *value = (uint32_t) size;
2248                                 *optsize = sizeof(uint32_t);
2249                         } else {
2250                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2251                                 error = ENOTCONN;
2252                         }
2253                         break;
2254                 }
2255         case SCTP_GET_PEER_ADDRESSES:
2256                 /*
2257                  * Get the address information, an array is passed in to
2258                  * fill up we pack it.
2259                  */
2260                 {
2261                         size_t cpsz, left;
2262                         struct sockaddr_storage *sas;
2263                         struct sctp_nets *net;
2264                         struct sctp_getaddresses *saddr;
2265
2266                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2267                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2268
2269                         if (stcb) {
2270                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2271                                 *optsize = sizeof(struct sctp_getaddresses);
2272                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2273
2274                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2275                                         switch (net->ro._l_addr.sa.sa_family) {
2276 #ifdef INET
2277                                         case AF_INET:
2278 #ifdef INET6
2279                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2280                                                         cpsz = sizeof(struct sockaddr_in6);
2281                                                 } else {
2282                                                         cpsz = sizeof(struct sockaddr_in);
2283                                                 }
2284 #else
2285                                                 cpsz = sizeof(struct sockaddr_in);
2286 #endif
2287                                                 break;
2288 #endif
2289 #ifdef INET6
2290                                         case AF_INET6:
2291                                                 cpsz = sizeof(struct sockaddr_in6);
2292                                                 break;
2293 #endif
2294                                         default:
2295                                                 cpsz = 0;
2296                                                 break;
2297                                         }
2298                                         if (cpsz == 0) {
2299                                                 break;
2300                                         }
2301                                         if (left < cpsz) {
2302                                                 /* not enough room. */
2303                                                 break;
2304                                         }
2305 #if defined(INET) && defined(INET6)
2306                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2307                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2308                                                 /* Must map the address */
2309                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2310                                                     (struct sockaddr_in6 *)sas);
2311                                         } else {
2312                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2313                                         }
2314 #else
2315                                         memcpy(sas, &net->ro._l_addr, cpsz);
2316 #endif
2317                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2318
2319                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2320                                         left -= cpsz;
2321                                         *optsize += cpsz;
2322                                 }
2323                                 SCTP_TCB_UNLOCK(stcb);
2324                         } else {
2325                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2326                                 error = ENOENT;
2327                         }
2328                         break;
2329                 }
2330         case SCTP_GET_LOCAL_ADDRESSES:
2331                 {
2332                         size_t limit, actual;
2333                         struct sockaddr_storage *sas;
2334                         struct sctp_getaddresses *saddr;
2335
2336                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2337                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2338
2339                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2340                         limit = *optsize - sizeof(sctp_assoc_t);
2341                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2342                         if (stcb) {
2343                                 SCTP_TCB_UNLOCK(stcb);
2344                         }
2345                         *optsize = sizeof(struct sockaddr_storage) + actual;
2346                         break;
2347                 }
2348         case SCTP_PEER_ADDR_PARAMS:
2349                 {
2350                         struct sctp_paddrparams *paddrp;
2351                         struct sctp_nets *net;
2352                         struct sockaddr *addr;
2353
2354 #if defined(INET) && defined(INET6)
2355                         struct sockaddr_in sin_store;
2356
2357 #endif
2358
2359                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2360                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2361
2362 #if defined(INET) && defined(INET6)
2363                         if (paddrp->spp_address.ss_family == AF_INET6) {
2364                                 struct sockaddr_in6 *sin6;
2365
2366                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2367                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2368                                         in6_sin6_2_sin(&sin_store, sin6);
2369                                         addr = (struct sockaddr *)&sin_store;
2370                                 } else {
2371                                         addr = (struct sockaddr *)&paddrp->spp_address;
2372                                 }
2373                         } else {
2374                                 addr = (struct sockaddr *)&paddrp->spp_address;
2375                         }
2376 #else
2377                         addr = (struct sockaddr *)&paddrp->spp_address;
2378 #endif
2379                         if (stcb != NULL) {
2380                                 net = sctp_findnet(stcb, addr);
2381                         } else {
2382                                 /*
2383                                  * We increment here since
2384                                  * sctp_findassociation_ep_addr() wil do a
2385                                  * decrement if it finds the stcb as long as
2386                                  * the locked tcb (last argument) is NOT a
2387                                  * TCB.. aka NULL.
2388                                  */
2389                                 net = NULL;
2390                                 SCTP_INP_INCR_REF(inp);
2391                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2392                                 if (stcb == NULL) {
2393                                         SCTP_INP_DECR_REF(inp);
2394                                 }
2395                         }
2396                         if ((stcb != NULL) && (net == NULL)) {
2397 #ifdef INET
2398                                 if (addr->sa_family == AF_INET) {
2399                                         struct sockaddr_in *sin;
2400
2401                                         sin = (struct sockaddr_in *)addr;
2402                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2403                                                 error = EINVAL;
2404                                                 SCTP_TCB_UNLOCK(stcb);
2405                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2406                                                 break;
2407                                         }
2408                                 } else
2409 #endif
2410 #ifdef INET6
2411                                 if (addr->sa_family == AF_INET6) {
2412                                         struct sockaddr_in6 *sin6;
2413
2414                                         sin6 = (struct sockaddr_in6 *)addr;
2415                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2416                                                 error = EINVAL;
2417                                                 SCTP_TCB_UNLOCK(stcb);
2418                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2419                                                 break;
2420                                         }
2421                                 } else
2422 #endif
2423                                 {
2424                                         error = EAFNOSUPPORT;
2425                                         SCTP_TCB_UNLOCK(stcb);
2426                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2427                                         break;
2428                                 }
2429                         }
2430                         if (stcb != NULL) {
2431                                 /* Applies to the specific association */
2432                                 paddrp->spp_flags = 0;
2433                                 if (net != NULL) {
2434                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2435                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2436                                         paddrp->spp_pathmtu = net->mtu;
2437                                         switch (net->ro._l_addr.sa.sa_family) {
2438 #ifdef INET
2439                                         case AF_INET:
2440                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2441                                                 break;
2442 #endif
2443 #ifdef INET6
2444                                         case AF_INET6:
2445                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2446                                                 break;
2447 #endif
2448                                         default:
2449                                                 break;
2450                                         }
2451                                         /* get flags for HB */
2452                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2453                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2454                                         } else {
2455                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2456                                         }
2457                                         /* get flags for PMTU */
2458                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2459                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2460                                         } else {
2461                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2462                                         }
2463                                         if (net->dscp & 0x01) {
2464                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2465                                                 paddrp->spp_flags |= SPP_DSCP;
2466                                         }
2467 #ifdef INET6
2468                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2469                                             (net->flowlabel & 0x80000000)) {
2470                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2471                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2472                                         }
2473 #endif
2474                                 } else {
2475                                         /*
2476                                          * No destination so return default
2477                                          * value
2478                                          */
2479                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2480                                         paddrp->spp_pathmtu = 0;
2481                                         if (stcb->asoc.default_dscp & 0x01) {
2482                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2483                                                 paddrp->spp_flags |= SPP_DSCP;
2484                                         }
2485 #ifdef INET6
2486                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2487                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2488                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2489                                         }
2490 #endif
2491                                         /* default settings should be these */
2492                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2493                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2494                                         } else {
2495                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2496                                         }
2497                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2498                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2499                                         } else {
2500                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2501                                         }
2502                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2503                                 }
2504                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2505                                 SCTP_TCB_UNLOCK(stcb);
2506                         } else {
2507                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2508                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2509                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2510                                         /* Use endpoint defaults */
2511                                         SCTP_INP_RLOCK(inp);
2512                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2513                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2514                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2515                                         /* get inp's default */
2516                                         if (inp->sctp_ep.default_dscp & 0x01) {
2517                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2518                                                 paddrp->spp_flags |= SPP_DSCP;
2519                                         }
2520 #ifdef INET6
2521                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2522                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2523                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2524                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2525                                         }
2526 #endif
2527                                         /* can't return this */
2528                                         paddrp->spp_pathmtu = 0;
2529
2530                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2531                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2532                                         } else {
2533                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2534                                         }
2535                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2536                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2537                                         } else {
2538                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2539                                         }
2540                                         SCTP_INP_RUNLOCK(inp);
2541                                 } else {
2542                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2543                                         error = EINVAL;
2544                                 }
2545                         }
2546                         if (error == 0) {
2547                                 *optsize = sizeof(struct sctp_paddrparams);
2548                         }
2549                         break;
2550                 }
2551         case SCTP_GET_PEER_ADDR_INFO:
2552                 {
2553                         struct sctp_paddrinfo *paddri;
2554                         struct sctp_nets *net;
2555                         struct sockaddr *addr;
2556
2557 #if defined(INET) && defined(INET6)
2558                         struct sockaddr_in sin_store;
2559
2560 #endif
2561
2562                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2563                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2564
2565 #if defined(INET) && defined(INET6)
2566                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2567                                 struct sockaddr_in6 *sin6;
2568
2569                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2570                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2571                                         in6_sin6_2_sin(&sin_store, sin6);
2572                                         addr = (struct sockaddr *)&sin_store;
2573                                 } else {
2574                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2575                                 }
2576                         } else {
2577                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2578                         }
2579 #else
2580                         addr = (struct sockaddr *)&paddri->spinfo_address;
2581 #endif
2582                         if (stcb != NULL) {
2583                                 net = sctp_findnet(stcb, addr);
2584                         } else {
2585                                 /*
2586                                  * We increment here since
2587                                  * sctp_findassociation_ep_addr() wil do a
2588                                  * decrement if it finds the stcb as long as
2589                                  * the locked tcb (last argument) is NOT a
2590                                  * TCB.. aka NULL.
2591                                  */
2592                                 net = NULL;
2593                                 SCTP_INP_INCR_REF(inp);
2594                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2595                                 if (stcb == NULL) {
2596                                         SCTP_INP_DECR_REF(inp);
2597                                 }
2598                         }
2599
2600                         if ((stcb != NULL) && (net != NULL)) {
2601                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2602                                         /* It's unconfirmed */
2603                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2604                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2605                                         /* It's active */
2606                                         paddri->spinfo_state = SCTP_ACTIVE;
2607                                 } else {
2608                                         /* It's inactive */
2609                                         paddri->spinfo_state = SCTP_INACTIVE;
2610                                 }
2611                                 paddri->spinfo_cwnd = net->cwnd;
2612                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2613                                 paddri->spinfo_rto = net->RTO;
2614                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2615                                 paddri->spinfo_mtu = net->mtu;
2616                                 switch (addr->sa_family) {
2617 #if defined(INET)
2618                                 case AF_INET:
2619                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2620                                         break;
2621 #endif
2622 #if defined(INET6)
2623                                 case AF_INET6:
2624                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2625                                         break;
2626 #endif
2627                                 default:
2628                                         break;
2629                                 }
2630                                 SCTP_TCB_UNLOCK(stcb);
2631                                 *optsize = sizeof(struct sctp_paddrinfo);
2632                         } else {
2633                                 if (stcb != NULL) {
2634                                         SCTP_TCB_UNLOCK(stcb);
2635                                 }
2636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2637                                 error = ENOENT;
2638                         }
2639                         break;
2640                 }
2641         case SCTP_PCB_STATUS:
2642                 {
2643                         struct sctp_pcbinfo *spcb;
2644
2645                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2646                         sctp_fill_pcbinfo(spcb);
2647                         *optsize = sizeof(struct sctp_pcbinfo);
2648                         break;
2649                 }
2650         case SCTP_STATUS:
2651                 {
2652                         struct sctp_nets *net;
2653                         struct sctp_status *sstat;
2654
2655                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2656                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2657
2658                         if (stcb == NULL) {
2659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2660                                 error = EINVAL;
2661                                 break;
2662                         }
2663                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2664                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2665                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2666                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2667                         /*
2668                          * We can't include chunks that have been passed to
2669                          * the socket layer. Only things in queue.
2670                          */
2671                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2672                             stcb->asoc.cnt_on_all_streams);
2673
2674
2675                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2676                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2677                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2678                         memcpy(&sstat->sstat_primary.spinfo_address,
2679                             &stcb->asoc.primary_destination->ro._l_addr,
2680                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2681                         net = stcb->asoc.primary_destination;
2682                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2683                         /*
2684                          * Again the user can get info from sctp_constants.h
2685                          * for what the state of the network is.
2686                          */
2687                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2688                                 /* It's unconfirmed */
2689                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2690                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2691                                 /* It's active */
2692                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2693                         } else {
2694                                 /* It's inactive */
2695                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2696                         }
2697                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2698                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2699                         sstat->sstat_primary.spinfo_rto = net->RTO;
2700                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2701                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2702 #if defined(INET)
2703                         case AF_INET:
2704                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2705                                 break;
2706 #endif
2707 #if defined(INET6)
2708                         case AF_INET6:
2709                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2710                                 break;
2711 #endif
2712                         default:
2713                                 break;
2714                         }
2715                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2716                         SCTP_TCB_UNLOCK(stcb);
2717                         *optsize = sizeof(struct sctp_status);
2718                         break;
2719                 }
2720         case SCTP_RTOINFO:
2721                 {
2722                         struct sctp_rtoinfo *srto;
2723
2724                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2725                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2726
2727                         if (stcb) {
2728                                 srto->srto_initial = stcb->asoc.initial_rto;
2729                                 srto->srto_max = stcb->asoc.maxrto;
2730                                 srto->srto_min = stcb->asoc.minrto;
2731                                 SCTP_TCB_UNLOCK(stcb);
2732                         } else {
2733                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2734                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2735                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2736                                         SCTP_INP_RLOCK(inp);
2737                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2738                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2739                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2740                                         SCTP_INP_RUNLOCK(inp);
2741                                 } else {
2742                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2743                                         error = EINVAL;
2744                                 }
2745                         }
2746                         if (error == 0) {
2747                                 *optsize = sizeof(struct sctp_rtoinfo);
2748                         }
2749                         break;
2750                 }
2751         case SCTP_TIMEOUTS:
2752                 {
2753                         struct sctp_timeouts *stimo;
2754
2755                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2756                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2757
2758                         if (stcb) {
2759                                 stimo->stimo_init = stcb->asoc.timoinit;
2760                                 stimo->stimo_data = stcb->asoc.timodata;
2761                                 stimo->stimo_sack = stcb->asoc.timosack;
2762                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2763                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2764                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2765                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2766                                 SCTP_TCB_UNLOCK(stcb);
2767                                 *optsize = sizeof(struct sctp_timeouts);
2768                         } else {
2769                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2770                                 error = EINVAL;
2771                         }
2772                         break;
2773                 }
2774         case SCTP_ASSOCINFO:
2775                 {
2776                         struct sctp_assocparams *sasoc;
2777
2778                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2779                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2780
2781                         if (stcb) {
2782                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2783                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2784                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2785                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2786                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2787                                 SCTP_TCB_UNLOCK(stcb);
2788                         } else {
2789                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2790                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2791                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2792                                         SCTP_INP_RLOCK(inp);
2793                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2794                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2795                                         sasoc->sasoc_number_peer_destinations = 0;
2796                                         sasoc->sasoc_peer_rwnd = 0;
2797                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2798                                         SCTP_INP_RUNLOCK(inp);
2799                                 } else {
2800                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2801                                         error = EINVAL;
2802                                 }
2803                         }
2804                         if (error == 0) {
2805                                 *optsize = sizeof(struct sctp_assocparams);
2806                         }
2807                         break;
2808                 }
2809         case SCTP_DEFAULT_SEND_PARAM:
2810                 {
2811                         struct sctp_sndrcvinfo *s_info;
2812
2813                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2814                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2815
2816                         if (stcb) {
2817                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2818                                 SCTP_TCB_UNLOCK(stcb);
2819                         } else {
2820                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2821                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2822                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2823                                         SCTP_INP_RLOCK(inp);
2824                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2825                                         SCTP_INP_RUNLOCK(inp);
2826                                 } else {
2827                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2828                                         error = EINVAL;
2829                                 }
2830                         }
2831                         if (error == 0) {
2832                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2833                         }
2834                         break;
2835                 }
2836         case SCTP_INITMSG:
2837                 {
2838                         struct sctp_initmsg *sinit;
2839
2840                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2841                         SCTP_INP_RLOCK(inp);
2842                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2843                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2844                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2845                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2846                         SCTP_INP_RUNLOCK(inp);
2847                         *optsize = sizeof(struct sctp_initmsg);
2848                         break;
2849                 }
2850         case SCTP_PRIMARY_ADDR:
2851                 /* we allow a "get" operation on this */
2852                 {
2853                         struct sctp_setprim *ssp;
2854
2855                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2856                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2857
2858                         if (stcb) {
2859                                 union sctp_sockstore *addr;
2860
2861                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2862                                 switch (addr->sa.sa_family) {
2863 #ifdef INET
2864                                 case AF_INET:
2865 #ifdef INET6
2866                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2867                                                 in6_sin_2_v4mapsin6(&addr->sin,
2868                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2869                                         } else {
2870                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2871                                         }
2872 #else
2873                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2874 #endif
2875                                         break;
2876 #endif
2877 #ifdef INET6
2878                                 case AF_INET6:
2879                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2880                                         break;
2881 #endif
2882                                 default:
2883                                         break;
2884                                 }
2885                                 SCTP_TCB_UNLOCK(stcb);
2886                                 *optsize = sizeof(struct sctp_setprim);
2887                         } else {
2888                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2889                                 error = EINVAL;
2890                         }
2891                         break;
2892                 }
2893         case SCTP_HMAC_IDENT:
2894                 {
2895                         struct sctp_hmacalgo *shmac;
2896                         sctp_hmaclist_t *hmaclist;
2897                         uint32_t size;
2898                         int i;
2899
2900                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2901
2902                         SCTP_INP_RLOCK(inp);
2903                         hmaclist = inp->sctp_ep.local_hmacs;
2904                         if (hmaclist == NULL) {
2905                                 /* no HMACs to return */
2906                                 *optsize = sizeof(*shmac);
2907                                 SCTP_INP_RUNLOCK(inp);
2908                                 break;
2909                         }
2910                         /* is there room for all of the hmac ids? */
2911                         size = sizeof(*shmac) + (hmaclist->num_algo *
2912                             sizeof(shmac->shmac_idents[0]));
2913                         if ((size_t)(*optsize) < size) {
2914                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2915                                 error = EINVAL;
2916                                 SCTP_INP_RUNLOCK(inp);
2917                                 break;
2918                         }
2919                         /* copy in the list */
2920                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2921                         for (i = 0; i < hmaclist->num_algo; i++) {
2922                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2923                         }
2924                         SCTP_INP_RUNLOCK(inp);
2925                         *optsize = size;
2926                         break;
2927                 }
2928         case SCTP_AUTH_ACTIVE_KEY:
2929                 {
2930                         struct sctp_authkeyid *scact;
2931
2932                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2933                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2934
2935                         if (stcb) {
2936                                 /* get the active key on the assoc */
2937                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2938                                 SCTP_TCB_UNLOCK(stcb);
2939                         } else {
2940                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2941                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2942                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2943                                         /* get the endpoint active key */
2944                                         SCTP_INP_RLOCK(inp);
2945                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2946                                         SCTP_INP_RUNLOCK(inp);
2947                                 } else {
2948                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2949                                         error = EINVAL;
2950                                 }
2951                         }
2952                         if (error == 0) {
2953                                 *optsize = sizeof(struct sctp_authkeyid);
2954                         }
2955                         break;
2956                 }
2957         case SCTP_LOCAL_AUTH_CHUNKS:
2958                 {
2959                         struct sctp_authchunks *sac;
2960                         sctp_auth_chklist_t *chklist = NULL;
2961                         size_t size = 0;
2962
2963                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2964                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2965
2966                         if (stcb) {
2967                                 /* get off the assoc */
2968                                 chklist = stcb->asoc.local_auth_chunks;
2969                                 /* is there enough space? */
2970                                 size = sctp_auth_get_chklist_size(chklist);
2971                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2972                                         error = EINVAL;
2973                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2974                                 } else {
2975                                         /* copy in the chunks */
2976                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2977                                         sac->gauth_number_of_chunks = (uint32_t) size;
2978                                         *optsize = sizeof(struct sctp_authchunks) + size;
2979                                 }
2980                                 SCTP_TCB_UNLOCK(stcb);
2981                         } else {
2982                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2983                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2984                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2985                                         /* get off the endpoint */
2986                                         SCTP_INP_RLOCK(inp);
2987                                         chklist = inp->sctp_ep.local_auth_chunks;
2988                                         /* is there enough space? */
2989                                         size = sctp_auth_get_chklist_size(chklist);
2990                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2991                                                 error = EINVAL;
2992                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2993                                         } else {
2994                                                 /* copy in the chunks */
2995                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2996                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2997                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2998                                         }
2999                                         SCTP_INP_RUNLOCK(inp);
3000                                 } else {
3001                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3002                                         error = EINVAL;
3003                                 }
3004                         }
3005                         break;
3006                 }
3007         case SCTP_PEER_AUTH_CHUNKS:
3008                 {
3009                         struct sctp_authchunks *sac;
3010                         sctp_auth_chklist_t *chklist = NULL;
3011                         size_t size = 0;
3012
3013                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3014                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3015
3016                         if (stcb) {
3017                                 /* get off the assoc */
3018                                 chklist = stcb->asoc.peer_auth_chunks;
3019                                 /* is there enough space? */
3020                                 size = sctp_auth_get_chklist_size(chklist);
3021                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3022                                         error = EINVAL;
3023                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3024                                 } else {
3025                                         /* copy in the chunks */
3026                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3027                                         sac->gauth_number_of_chunks = (uint32_t) size;
3028                                         *optsize = sizeof(struct sctp_authchunks) + size;
3029                                 }
3030                                 SCTP_TCB_UNLOCK(stcb);
3031                         } else {
3032                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3033                                 error = ENOENT;
3034                         }
3035                         break;
3036                 }
3037         case SCTP_EVENT:
3038                 {
3039                         struct sctp_event *event;
3040                         uint32_t event_type;
3041
3042                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3043                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3044
3045                         switch (event->se_type) {
3046                         case SCTP_ASSOC_CHANGE:
3047                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3048                                 break;
3049                         case SCTP_PEER_ADDR_CHANGE:
3050                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3051                                 break;
3052                         case SCTP_REMOTE_ERROR:
3053                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3054                                 break;
3055                         case SCTP_SEND_FAILED:
3056                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3057                                 break;
3058                         case SCTP_SHUTDOWN_EVENT:
3059                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3060                                 break;
3061                         case SCTP_ADAPTATION_INDICATION:
3062                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3063                                 break;
3064                         case SCTP_PARTIAL_DELIVERY_EVENT:
3065                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3066                                 break;
3067                         case SCTP_AUTHENTICATION_EVENT:
3068                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3069                                 break;
3070                         case SCTP_STREAM_RESET_EVENT:
3071                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3072                                 break;
3073                         case SCTP_SENDER_DRY_EVENT:
3074                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3075                                 break;
3076                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3077                                 event_type = 0;
3078                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3079                                 error = ENOTSUP;
3080                                 break;
3081                         case SCTP_ASSOC_RESET_EVENT:
3082                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3083                                 break;
3084                         case SCTP_STREAM_CHANGE_EVENT:
3085                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3086                                 break;
3087                         case SCTP_SEND_FAILED_EVENT:
3088                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3089                                 break;
3090                         default:
3091                                 event_type = 0;
3092                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3093                                 error = EINVAL;
3094                                 break;
3095                         }
3096                         if (event_type > 0) {
3097                                 if (stcb) {
3098                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3099                                         SCTP_TCB_UNLOCK(stcb);
3100                                 } else {
3101                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3102                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3103                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3104                                                 SCTP_INP_RLOCK(inp);
3105                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3106                                                 SCTP_INP_RUNLOCK(inp);
3107                                         } else {
3108                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3109                                                 error = EINVAL;
3110                                         }
3111                                 }
3112                         }
3113                         if (error == 0) {
3114                                 *optsize = sizeof(struct sctp_event);
3115                         }
3116                         break;
3117                 }
3118         case SCTP_RECVRCVINFO:
3119                 {
3120                         int onoff;
3121
3122                         if (*optsize < sizeof(int)) {
3123                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3124                                 error = EINVAL;
3125                         } else {
3126                                 SCTP_INP_RLOCK(inp);
3127                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3128                                 SCTP_INP_RUNLOCK(inp);
3129                         }
3130                         if (error == 0) {
3131                                 /* return the option value */
3132                                 *(int *)optval = onoff;
3133                                 *optsize = sizeof(int);
3134                         }
3135                         break;
3136                 }
3137         case SCTP_RECVNXTINFO:
3138                 {
3139                         int onoff;
3140
3141                         if (*optsize < sizeof(int)) {
3142                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3143                                 error = EINVAL;
3144                         } else {
3145                                 SCTP_INP_RLOCK(inp);
3146                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3147                                 SCTP_INP_RUNLOCK(inp);
3148                         }
3149                         if (error == 0) {
3150                                 /* return the option value */
3151                                 *(int *)optval = onoff;
3152                                 *optsize = sizeof(int);
3153                         }
3154                         break;
3155                 }
3156         case SCTP_DEFAULT_SNDINFO:
3157                 {
3158                         struct sctp_sndinfo *info;
3159
3160                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3161                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3162
3163                         if (stcb) {
3164                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3165                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3166                                 info->snd_flags &= 0xfff0;
3167                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3168                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3169                                 SCTP_TCB_UNLOCK(stcb);
3170                         } else {
3171                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3172                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3173                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3174                                         SCTP_INP_RLOCK(inp);
3175                                         info->snd_sid = inp->def_send.sinfo_stream;
3176                                         info->snd_flags = inp->def_send.sinfo_flags;
3177                                         info->snd_flags &= 0xfff0;
3178                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3179                                         info->snd_context = inp->def_send.sinfo_context;
3180                                         SCTP_INP_RUNLOCK(inp);
3181                                 } else {
3182                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3183                                         error = EINVAL;
3184                                 }
3185                         }
3186                         if (error == 0) {
3187                                 *optsize = sizeof(struct sctp_sndinfo);
3188                         }
3189                         break;
3190                 }
3191         case SCTP_DEFAULT_PRINFO:
3192                 {
3193                         struct sctp_default_prinfo *info;
3194
3195                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3196                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3197
3198                         if (stcb) {
3199                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3200                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3201                                 SCTP_TCB_UNLOCK(stcb);
3202                         } else {
3203                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3204                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3205                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3206                                         SCTP_INP_RLOCK(inp);
3207                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3208                                         info->pr_value = inp->def_send.sinfo_timetolive;
3209                                         SCTP_INP_RUNLOCK(inp);
3210                                 } else {
3211                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3212                                         error = EINVAL;
3213                                 }
3214                         }
3215                         if (error == 0) {
3216                                 *optsize = sizeof(struct sctp_default_prinfo);
3217                         }
3218                         break;
3219                 }
3220         case SCTP_PEER_ADDR_THLDS:
3221                 {
3222                         struct sctp_paddrthlds *thlds;
3223                         struct sctp_nets *net;
3224                         struct sockaddr *addr;
3225
3226 #if defined(INET) && defined(INET6)
3227                         struct sockaddr_in sin_store;
3228
3229 #endif
3230
3231                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3232                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3233
3234 #if defined(INET) && defined(INET6)
3235                         if (thlds->spt_address.ss_family == AF_INET6) {
3236                                 struct sockaddr_in6 *sin6;
3237
3238                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3239                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3240                                         in6_sin6_2_sin(&sin_store, sin6);
3241                                         addr = (struct sockaddr *)&sin_store;
3242                                 } else {
3243                                         addr = (struct sockaddr *)&thlds->spt_address;
3244                                 }
3245                         } else {
3246                                 addr = (struct sockaddr *)&thlds->spt_address;
3247                         }
3248 #else
3249                         addr = (struct sockaddr *)&thlds->spt_address;
3250 #endif
3251                         if (stcb != NULL) {
3252                                 net = sctp_findnet(stcb, addr);
3253                         } else {
3254                                 /*
3255                                  * We increment here since
3256                                  * sctp_findassociation_ep_addr() wil do a
3257                                  * decrement if it finds the stcb as long as
3258                                  * the locked tcb (last argument) is NOT a
3259                                  * TCB.. aka NULL.
3260                                  */
3261                                 net = NULL;
3262                                 SCTP_INP_INCR_REF(inp);
3263                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3264                                 if (stcb == NULL) {
3265                                         SCTP_INP_DECR_REF(inp);
3266                                 }
3267                         }
3268                         if ((stcb != NULL) && (net == NULL)) {
3269 #ifdef INET
3270                                 if (addr->sa_family == AF_INET) {
3271                                         struct sockaddr_in *sin;
3272
3273                                         sin = (struct sockaddr_in *)addr;
3274                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3275                                                 error = EINVAL;
3276                                                 SCTP_TCB_UNLOCK(stcb);
3277                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3278                                                 break;
3279                                         }
3280                                 } else
3281 #endif
3282 #ifdef INET6
3283                                 if (addr->sa_family == AF_INET6) {
3284                                         struct sockaddr_in6 *sin6;
3285
3286                                         sin6 = (struct sockaddr_in6 *)addr;
3287                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3288                                                 error = EINVAL;
3289                                                 SCTP_TCB_UNLOCK(stcb);
3290                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3291                                                 break;
3292                                         }
3293                                 } else
3294 #endif
3295                                 {
3296                                         error = EAFNOSUPPORT;
3297                                         SCTP_TCB_UNLOCK(stcb);
3298                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3299                                         break;
3300                                 }
3301                         }
3302                         if (stcb != NULL) {
3303                                 if (net != NULL) {
3304                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3305                                         thlds->spt_pathpfthld = net->pf_threshold;
3306                                 } else {
3307                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3308                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3309                                 }
3310                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3311                                 SCTP_TCB_UNLOCK(stcb);
3312                         } else {
3313                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3314                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3315                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3316                                         /* Use endpoint defaults */
3317                                         SCTP_INP_RLOCK(inp);
3318                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3319                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3320                                         SCTP_INP_RUNLOCK(inp);
3321                                 } else {
3322                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3323                                         error = EINVAL;
3324                                 }
3325                         }
3326                         if (error == 0) {
3327                                 *optsize = sizeof(struct sctp_paddrthlds);
3328                         }
3329                         break;
3330                 }
3331         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3332                 {
3333                         struct sctp_udpencaps *encaps;
3334                         struct sctp_nets *net;
3335                         struct sockaddr *addr;
3336
3337 #if defined(INET) && defined(INET6)
3338                         struct sockaddr_in sin_store;
3339
3340 #endif
3341
3342                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3343                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3344
3345 #if defined(INET) && defined(INET6)
3346                         if (encaps->sue_address.ss_family == AF_INET6) {
3347                                 struct sockaddr_in6 *sin6;
3348
3349                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3350                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3351                                         in6_sin6_2_sin(&sin_store, sin6);
3352                                         addr = (struct sockaddr *)&sin_store;
3353                                 } else {
3354                                         addr = (struct sockaddr *)&encaps->sue_address;
3355                                 }
3356                         } else {
3357                                 addr = (struct sockaddr *)&encaps->sue_address;
3358                         }
3359 #else
3360                         addr = (struct sockaddr *)&encaps->sue_address;
3361 #endif
3362                         if (stcb) {
3363                                 net = sctp_findnet(stcb, addr);
3364                         } else {
3365                                 /*
3366                                  * We increment here since
3367                                  * sctp_findassociation_ep_addr() wil do a
3368                                  * decrement if it finds the stcb as long as
3369                                  * the locked tcb (last argument) is NOT a
3370                                  * TCB.. aka NULL.
3371                                  */
3372                                 net = NULL;
3373                                 SCTP_INP_INCR_REF(inp);
3374                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3375                                 if (stcb == NULL) {
3376                                         SCTP_INP_DECR_REF(inp);
3377                                 }
3378                         }
3379                         if ((stcb != NULL) && (net == NULL)) {
3380 #ifdef INET
3381                                 if (addr->sa_family == AF_INET) {
3382                                         struct sockaddr_in *sin;
3383
3384                                         sin = (struct sockaddr_in *)addr;
3385                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3386                                                 error = EINVAL;
3387                                                 SCTP_TCB_UNLOCK(stcb);
3388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3389                                                 break;
3390                                         }
3391                                 } else
3392 #endif
3393 #ifdef INET6
3394                                 if (addr->sa_family == AF_INET6) {
3395                                         struct sockaddr_in6 *sin6;
3396
3397                                         sin6 = (struct sockaddr_in6 *)addr;
3398                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3399                                                 error = EINVAL;
3400                                                 SCTP_TCB_UNLOCK(stcb);
3401                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3402                                                 break;
3403                                         }
3404                                 } else
3405 #endif
3406                                 {
3407                                         error = EAFNOSUPPORT;
3408                                         SCTP_TCB_UNLOCK(stcb);
3409                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3410                                         break;
3411                                 }
3412                         }
3413                         if (stcb != NULL) {
3414                                 if (net) {
3415                                         encaps->sue_port = net->port;
3416                                 } else {
3417                                         encaps->sue_port = stcb->asoc.port;
3418                                 }
3419                                 SCTP_TCB_UNLOCK(stcb);
3420                         } else {
3421                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3422                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3423                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3424                                         SCTP_INP_RLOCK(inp);
3425                                         encaps->sue_port = inp->sctp_ep.port;
3426                                         SCTP_INP_RUNLOCK(inp);
3427                                 } else {
3428                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3429                                         error = EINVAL;
3430                                 }
3431                         }
3432                         if (error == 0) {
3433                                 *optsize = sizeof(struct sctp_udpencaps);
3434                         }
3435                         break;
3436                 }
3437         case SCTP_ECN_SUPPORTED:
3438                 {
3439                         struct sctp_assoc_value *av;
3440
3441                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3442                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3443
3444                         if (stcb) {
3445                                 av->assoc_value = stcb->asoc.ecn_supported;
3446                                 SCTP_TCB_UNLOCK(stcb);
3447                         } else {
3448                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3449                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3450                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3451                                         SCTP_INP_RLOCK(inp);
3452                                         av->assoc_value = inp->ecn_supported;
3453                                         SCTP_INP_RUNLOCK(inp);
3454                                 } else {
3455                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3456                                         error = EINVAL;
3457                                 }
3458                         }
3459                         if (error == 0) {
3460                                 *optsize = sizeof(struct sctp_assoc_value);
3461                         }
3462                         break;
3463                 }
3464         case SCTP_PR_SUPPORTED:
3465                 {
3466                         struct sctp_assoc_value *av;
3467
3468                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3469                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3470
3471                         if (stcb) {
3472                                 av->assoc_value = stcb->asoc.prsctp_supported;
3473                                 SCTP_TCB_UNLOCK(stcb);
3474                         } else {
3475                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3476                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3477                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3478                                         SCTP_INP_RLOCK(inp);
3479                                         av->assoc_value = inp->prsctp_supported;
3480                                         SCTP_INP_RUNLOCK(inp);
3481                                 } else {
3482                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3483                                         error = EINVAL;
3484                                 }
3485                         }
3486                         if (error == 0) {
3487                                 *optsize = sizeof(struct sctp_assoc_value);
3488                         }
3489                         break;
3490                 }
3491         case SCTP_AUTH_SUPPORTED:
3492                 {
3493                         struct sctp_assoc_value *av;
3494
3495                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3496                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3497
3498                         if (stcb) {
3499                                 av->assoc_value = stcb->asoc.auth_supported;
3500                                 SCTP_TCB_UNLOCK(stcb);
3501                         } else {
3502                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3503                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3504                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3505                                         SCTP_INP_RLOCK(inp);
3506                                         av->assoc_value = inp->auth_supported;
3507                                         SCTP_INP_RUNLOCK(inp);
3508                                 } else {
3509                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3510                                         error = EINVAL;
3511                                 }
3512                         }
3513                         if (error == 0) {
3514                                 *optsize = sizeof(struct sctp_assoc_value);
3515                         }
3516                         break;
3517                 }
3518         case SCTP_ASCONF_SUPPORTED:
3519                 {
3520                         struct sctp_assoc_value *av;
3521
3522                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3523                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3524
3525                         if (stcb) {
3526                                 av->assoc_value = stcb->asoc.asconf_supported;
3527                                 SCTP_TCB_UNLOCK(stcb);
3528                         } else {
3529                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3530                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3531                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3532                                         SCTP_INP_RLOCK(inp);
3533                                         av->assoc_value = inp->asconf_supported;
3534                                         SCTP_INP_RUNLOCK(inp);
3535                                 } else {
3536                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3537                                         error = EINVAL;
3538                                 }
3539                         }
3540                         if (error == 0) {
3541                                 *optsize = sizeof(struct sctp_assoc_value);
3542                         }
3543                         break;
3544                 }
3545         case SCTP_RECONFIG_SUPPORTED:
3546                 {
3547                         struct sctp_assoc_value *av;
3548
3549                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3550                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3551
3552                         if (stcb) {
3553                                 av->assoc_value = stcb->asoc.reconfig_supported;
3554                                 SCTP_TCB_UNLOCK(stcb);
3555                         } else {
3556                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3557                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3558                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3559                                         SCTP_INP_RLOCK(inp);
3560                                         av->assoc_value = inp->reconfig_supported;
3561                                         SCTP_INP_RUNLOCK(inp);
3562                                 } else {
3563                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3564                                         error = EINVAL;
3565                                 }
3566                         }
3567                         if (error == 0) {
3568                                 *optsize = sizeof(struct sctp_assoc_value);
3569                         }
3570                         break;
3571                 }
3572         case SCTP_NRSACK_SUPPORTED:
3573                 {
3574                         struct sctp_assoc_value *av;
3575
3576                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3577                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3578
3579                         if (stcb) {
3580                                 av->assoc_value = stcb->asoc.nrsack_supported;
3581                                 SCTP_TCB_UNLOCK(stcb);
3582                         } else {
3583                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3584                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3585                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3586                                         SCTP_INP_RLOCK(inp);
3587                                         av->assoc_value = inp->nrsack_supported;
3588                                         SCTP_INP_RUNLOCK(inp);
3589                                 } else {
3590                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3591                                         error = EINVAL;
3592                                 }
3593                         }
3594                         if (error == 0) {
3595                                 *optsize = sizeof(struct sctp_assoc_value);
3596                         }
3597                         break;
3598                 }
3599         case SCTP_PKTDROP_SUPPORTED:
3600                 {
3601                         struct sctp_assoc_value *av;
3602
3603                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3604                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3605
3606                         if (stcb) {
3607                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3608                                 SCTP_TCB_UNLOCK(stcb);
3609                         } else {
3610                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3611                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3612                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3613                                         SCTP_INP_RLOCK(inp);
3614                                         av->assoc_value = inp->pktdrop_supported;
3615                                         SCTP_INP_RUNLOCK(inp);
3616                                 } else {
3617                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3618                                         error = EINVAL;
3619                                 }
3620                         }
3621                         if (error == 0) {
3622                                 *optsize = sizeof(struct sctp_assoc_value);
3623                         }
3624                         break;
3625                 }
3626         case SCTP_ENABLE_STREAM_RESET:
3627                 {
3628                         struct sctp_assoc_value *av;
3629
3630                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3631                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3632
3633                         if (stcb) {
3634                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3635                                 SCTP_TCB_UNLOCK(stcb);
3636                         } else {
3637                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3638                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3639                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3640                                         SCTP_INP_RLOCK(inp);
3641                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3642                                         SCTP_INP_RUNLOCK(inp);
3643                                 } else {
3644                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3645                                         error = EINVAL;
3646                                 }
3647                         }
3648                         if (error == 0) {
3649                                 *optsize = sizeof(struct sctp_assoc_value);
3650                         }
3651                         break;
3652                 }
3653         case SCTP_PR_STREAM_STATUS:
3654                 {
3655                         struct sctp_prstatus *sprstat;
3656                         uint16_t sid;
3657                         uint16_t policy;
3658
3659                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3660                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3661
3662                         sid = sprstat->sprstat_sid;
3663                         policy = sprstat->sprstat_policy;
3664 #if defined(SCTP_DETAILED_STR_STATS)
3665                         if ((stcb != NULL) &&
3666                             (sid < stcb->asoc.streamoutcnt) &&
3667                             (policy != SCTP_PR_SCTP_NONE) &&
3668                             ((policy <= SCTP_PR_SCTP_MAX) ||
3669                             (policy == SCTP_PR_SCTP_ALL))) {
3670                                 if (policy == SCTP_PR_SCTP_ALL) {
3671                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3672                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3673                                 } else {
3674                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3675                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3676                                 }
3677 #else
3678                         if ((stcb != NULL) &&
3679                             (sid < stcb->asoc.streamoutcnt) &&
3680                             (policy == SCTP_PR_SCTP_ALL)) {
3681                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3682                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3683 #endif
3684                                 SCTP_TCB_UNLOCK(stcb);
3685                                 *optsize = sizeof(struct sctp_prstatus);
3686                         } else {
3687                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3688                                 error = EINVAL;
3689                         }
3690                         break;
3691                 }
3692         case SCTP_PR_ASSOC_STATUS:
3693                 {
3694                         struct sctp_prstatus *sprstat;
3695                         uint16_t policy;
3696
3697                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3698                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3699
3700                         policy = sprstat->sprstat_policy;
3701                         if ((stcb != NULL) &&
3702                             (policy != SCTP_PR_SCTP_NONE) &&
3703                             ((policy <= SCTP_PR_SCTP_MAX) ||
3704                             (policy == SCTP_PR_SCTP_ALL))) {
3705                                 if (policy == SCTP_PR_SCTP_ALL) {
3706                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3707                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3708                                 } else {
3709                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3710                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3711                                 }
3712                                 SCTP_TCB_UNLOCK(stcb);
3713                                 *optsize = sizeof(struct sctp_prstatus);
3714                         } else {
3715                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3716                                 error = EINVAL;
3717                         }
3718                         break;
3719                 }
3720         case SCTP_MAX_CWND:
3721                 {
3722                         struct sctp_assoc_value *av;
3723
3724                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3725                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3726
3727                         if (stcb) {
3728                                 av->assoc_value = stcb->asoc.max_cwnd;
3729                                 SCTP_TCB_UNLOCK(stcb);
3730                         } else {
3731                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3732                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3733                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3734                                         SCTP_INP_RLOCK(inp);
3735                                         av->assoc_value = inp->max_cwnd;
3736                                         SCTP_INP_RUNLOCK(inp);
3737                                 } else {
3738                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3739                                         error = EINVAL;
3740                                 }
3741                         }
3742                         if (error == 0) {
3743                                 *optsize = sizeof(struct sctp_assoc_value);
3744                         }
3745                         break;
3746                 }
3747         default:
3748                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3749                 error = ENOPROTOOPT;
3750                 break;
3751         }                       /* end switch (sopt->sopt_name) */
3752         if (error) {
3753                 *optsize = 0;
3754         }
3755         return (error);
3756 }
3757
3758 static int
3759 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3760     void *p)
3761 {
3762         int error, set_opt;
3763         uint32_t *mopt;
3764         struct sctp_tcb *stcb = NULL;
3765         struct sctp_inpcb *inp = NULL;
3766         uint32_t vrf_id;
3767
3768         if (optval == NULL) {
3769                 SCTP_PRINTF("optval is NULL\n");
3770                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3771                 return (EINVAL);
3772         }
3773         inp = (struct sctp_inpcb *)so->so_pcb;
3774         if (inp == NULL) {
3775                 SCTP_PRINTF("inp is NULL?\n");
3776                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3777                 return (EINVAL);
3778         }
3779         vrf_id = inp->def_vrf_id;
3780
3781         error = 0;
3782         switch (optname) {
3783         case SCTP_NODELAY:
3784         case SCTP_AUTOCLOSE:
3785         case SCTP_AUTO_ASCONF:
3786         case SCTP_EXPLICIT_EOR:
3787         case SCTP_DISABLE_FRAGMENTS:
3788         case SCTP_USE_EXT_RCVINFO:
3789         case SCTP_I_WANT_MAPPED_V4_ADDR:
3790                 /* copy in the option value */
3791                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3792                 set_opt = 0;
3793                 if (error)
3794                         break;
3795                 switch (optname) {
3796                 case SCTP_DISABLE_FRAGMENTS:
3797                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3798                         break;
3799                 case SCTP_AUTO_ASCONF:
3800                         /*
3801                          * NOTE: we don't really support this flag
3802                          */
3803                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3804                                 /* only valid for bound all sockets */
3805                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3806                                     (*mopt != 0)) {
3807                                         /* forbidden by admin */
3808                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3809                                         return (EPERM);
3810                                 }
3811                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3812                         } else {
3813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3814                                 return (EINVAL);
3815                         }
3816                         break;
3817                 case SCTP_EXPLICIT_EOR:
3818                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3819                         break;
3820                 case SCTP_USE_EXT_RCVINFO:
3821                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3822                         break;
3823                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3824                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3825                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3826                         } else {
3827                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3828                                 return (EINVAL);
3829                         }
3830                         break;
3831                 case SCTP_NODELAY:
3832                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3833                         break;
3834                 case SCTP_AUTOCLOSE:
3835                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3836                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3837                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3838                                 return (EINVAL);
3839                         }
3840                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3841                         /*
3842                          * The value is in ticks. Note this does not effect
3843                          * old associations, only new ones.
3844                          */
3845                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3846                         break;
3847                 }
3848                 SCTP_INP_WLOCK(inp);
3849                 if (*mopt != 0) {
3850                         sctp_feature_on(inp, set_opt);
3851                 } else {
3852                         sctp_feature_off(inp, set_opt);
3853                 }
3854                 SCTP_INP_WUNLOCK(inp);
3855                 break;
3856         case SCTP_REUSE_PORT:
3857                 {
3858                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3859                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3860                                 /* Can't set it after we are bound */
3861                                 error = EINVAL;
3862                                 break;
3863                         }
3864                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3865                                 /* Can't do this for a 1-m socket */
3866                                 error = EINVAL;
3867                                 break;
3868                         }
3869                         if (optval)
3870                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3871                         else
3872                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3873                         break;
3874                 }
3875         case SCTP_PARTIAL_DELIVERY_POINT:
3876                 {
3877                         uint32_t *value;
3878
3879                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3880                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3881                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3882                                 error = EINVAL;
3883                                 break;
3884                         }
3885                         inp->partial_delivery_point = *value;
3886                         break;
3887                 }
3888         case SCTP_FRAGMENT_INTERLEAVE:
3889                 /* not yet until we re-write sctp_recvmsg() */
3890                 {
3891                         uint32_t *level;
3892
3893                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3894                         if (*level == SCTP_FRAG_LEVEL_2) {
3895                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3896                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3897                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3898                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3899                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3900                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3901                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3902                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3903
3904                         } else {
3905                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3906                                 error = EINVAL;
3907                         }
3908                         break;
3909                 }
3910         case SCTP_INTERLEAVING_SUPPORTED:
3911                 {
3912                         struct sctp_assoc_value *av;
3913
3914                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3915                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3916
3917                         if (stcb) {
3918                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3919                                 error = EINVAL;
3920                                 SCTP_TCB_UNLOCK(stcb);
3921                         } else {
3922                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3923                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3924                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3925                                         SCTP_INP_WLOCK(inp);
3926                                         if (av->assoc_value == 0) {
3927                                                 inp->idata_supported = 0;
3928                                         } else {
3929                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3930                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3931                                                         inp->idata_supported = 1;
3932                                                 } else {
3933                                                         /*
3934                                                          * Must have Frag
3935                                                          * interleave and
3936                                                          * stream interleave
3937                                                          * on
3938                                                          */
3939                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3940                                                         error = EINVAL;
3941                                                 }
3942                                         }
3943                                         SCTP_INP_WUNLOCK(inp);
3944                                 } else {
3945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3946                                         error = EINVAL;
3947                                 }
3948                         }
3949                         break;
3950                 }
3951         case SCTP_CMT_ON_OFF:
3952                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3953                         struct sctp_assoc_value *av;
3954
3955                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3956                         if (av->assoc_value > SCTP_CMT_MAX) {
3957                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3958                                 error = EINVAL;
3959                                 break;
3960                         }
3961                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3962                         if (stcb) {
3963                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3964                                 SCTP_TCB_UNLOCK(stcb);
3965                         } else {
3966                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3967                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3968                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3969                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3970                                         SCTP_INP_WLOCK(inp);
3971                                         inp->sctp_cmt_on_off = av->assoc_value;
3972                                         SCTP_INP_WUNLOCK(inp);
3973                                 }
3974                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3975                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3976                                         SCTP_INP_RLOCK(inp);
3977                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3978                                                 SCTP_TCB_LOCK(stcb);
3979                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3980                                                 SCTP_TCB_UNLOCK(stcb);
3981                                         }
3982                                         SCTP_INP_RUNLOCK(inp);
3983                                 }
3984                         }
3985                 } else {
3986                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3987                         error = ENOPROTOOPT;
3988                 }
3989                 break;
3990         case SCTP_PLUGGABLE_CC:
3991                 {
3992                         struct sctp_assoc_value *av;
3993                         struct sctp_nets *net;
3994
3995                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3996                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3997                             (av->assoc_value != SCTP_CC_HSTCP) &&
3998                             (av->assoc_value != SCTP_CC_HTCP) &&
3999                             (av->assoc_value != SCTP_CC_RTCC)) {
4000                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4001                                 error = EINVAL;
4002                                 break;
4003                         }
4004                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4005                         if (stcb) {
4006                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4007                                 stcb->asoc.congestion_control_module = av->assoc_value;
4008                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4009                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4010                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4011                                         }
4012                                 }
4013                                 SCTP_TCB_UNLOCK(stcb);
4014                         } else {
4015                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4016                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4017                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4018                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4019                                         SCTP_INP_WLOCK(inp);
4020                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4021                                         SCTP_INP_WUNLOCK(inp);
4022                                 }
4023                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4024                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4025                                         SCTP_INP_RLOCK(inp);
4026                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4027                                                 SCTP_TCB_LOCK(stcb);
4028                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4029                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4030                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4031                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4032                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4033                                                         }
4034                                                 }
4035                                                 SCTP_TCB_UNLOCK(stcb);
4036                                         }
4037                                         SCTP_INP_RUNLOCK(inp);
4038                                 }
4039                         }
4040                         break;
4041                 }
4042         case SCTP_CC_OPTION:
4043                 {
4044                         struct sctp_cc_option *cc_opt;
4045
4046                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4047                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4048                         if (stcb == NULL) {
4049                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4050                                         SCTP_INP_RLOCK(inp);
4051                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4052                                                 SCTP_TCB_LOCK(stcb);
4053                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4054                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4055                                                 }
4056                                                 SCTP_TCB_UNLOCK(stcb);
4057                                         }
4058                                         SCTP_INP_RUNLOCK(inp);
4059                                 } else {
4060                                         error = EINVAL;
4061                                 }
4062                         } else {
4063                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4064                                         error = ENOTSUP;
4065                                 } else {
4066                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4067                                             cc_opt);
4068                                 }
4069                                 SCTP_TCB_UNLOCK(stcb);
4070                         }
4071                         break;
4072                 }
4073         case SCTP_PLUGGABLE_SS:
4074                 {
4075                         struct sctp_assoc_value *av;
4076
4077                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4078                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4079                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4080                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4081                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4082                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4083                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4084                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4085                                 error = EINVAL;
4086                                 break;
4087                         }
4088                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4089                         if (stcb) {
4090                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4091                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4092                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4093                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4094                                 SCTP_TCB_UNLOCK(stcb);
4095                         } else {
4096                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4097                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4098                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4099                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4100                                         SCTP_INP_WLOCK(inp);
4101                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4102                                         SCTP_INP_WUNLOCK(inp);
4103                                 }
4104                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4105                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4106                                         SCTP_INP_RLOCK(inp);
4107                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4108                                                 SCTP_TCB_LOCK(stcb);
4109                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4110                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4111                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4112                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4113                                                 SCTP_TCB_UNLOCK(stcb);
4114                                         }
4115                                         SCTP_INP_RUNLOCK(inp);
4116                                 }
4117                         }
4118                         break;
4119                 }
4120         case SCTP_SS_VALUE:
4121                 {
4122                         struct sctp_stream_value *av;
4123
4124                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4125                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4126                         if (stcb) {
4127                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4128                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4129                                     av->stream_value) < 0)) {
4130                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4131                                         error = EINVAL;
4132                                 }
4133                                 SCTP_TCB_UNLOCK(stcb);
4134                         } else {
4135                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4136                                         SCTP_INP_RLOCK(inp);
4137                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4138                                                 SCTP_TCB_LOCK(stcb);
4139                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4140                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4141                                                             &stcb->asoc,
4142                                                             &stcb->asoc.strmout[av->stream_id],
4143                                                             av->stream_value);
4144                                                 }
4145                                                 SCTP_TCB_UNLOCK(stcb);
4146                                         }
4147                                         SCTP_INP_RUNLOCK(inp);
4148                                 } else {
4149                                         /*
4150                                          * Can't set stream value without
4151                                          * association
4152                                          */
4153                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4154                                         error = EINVAL;
4155                                 }
4156                         }
4157                         break;
4158                 }
4159         case SCTP_CLR_STAT_LOG:
4160                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4161                 error = EOPNOTSUPP;
4162                 break;
4163         case SCTP_CONTEXT:
4164                 {
4165                         struct sctp_assoc_value *av;
4166
4167                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4168                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4169
4170                         if (stcb) {
4171                                 stcb->asoc.context = av->assoc_value;
4172                                 SCTP_TCB_UNLOCK(stcb);
4173                         } else {
4174                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4175                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4176                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4177                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4178                                         SCTP_INP_WLOCK(inp);
4179                                         inp->sctp_context = av->assoc_value;
4180                                         SCTP_INP_WUNLOCK(inp);
4181                                 }
4182                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4183                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4184                                         SCTP_INP_RLOCK(inp);
4185                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4186                                                 SCTP_TCB_LOCK(stcb);
4187                                                 stcb->asoc.context = av->assoc_value;
4188                                                 SCTP_TCB_UNLOCK(stcb);
4189                                         }
4190                                         SCTP_INP_RUNLOCK(inp);
4191                                 }
4192                         }
4193                         break;
4194                 }
4195         case SCTP_VRF_ID:
4196                 {
4197                         uint32_t *default_vrfid;
4198
4199                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4200                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4201                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4202                                 error = EINVAL;
4203                                 break;
4204                         }
4205                         inp->def_vrf_id = *default_vrfid;
4206                         break;
4207                 }
4208         case SCTP_DEL_VRF_ID:
4209                 {
4210                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4211                         error = EOPNOTSUPP;
4212                         break;
4213                 }
4214         case SCTP_ADD_VRF_ID:
4215                 {
4216                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4217                         error = EOPNOTSUPP;
4218                         break;
4219                 }
4220         case SCTP_DELAYED_SACK:
4221                 {
4222                         struct sctp_sack_info *sack;
4223
4224                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4225                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4226                         if (sack->sack_delay) {
4227                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4228                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4229                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4230                                         sack->sack_delay = TICKS_TO_MSEC(1);
4231                                 }
4232                         }
4233                         if (stcb) {
4234                                 if (sack->sack_delay) {
4235                                         stcb->asoc.delayed_ack = sack->sack_delay;
4236                                 }
4237                                 if (sack->sack_freq) {
4238                                         stcb->asoc.sack_freq = sack->sack_freq;
4239                                 }
4240                                 SCTP_TCB_UNLOCK(stcb);
4241                         } else {
4242                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4243                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4244                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4245                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4246                                         SCTP_INP_WLOCK(inp);
4247                                         if (sack->sack_delay) {
4248                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4249                                         }
4250                                         if (sack->sack_freq) {
4251                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4252                                         }
4253                                         SCTP_INP_WUNLOCK(inp);
4254                                 }
4255                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4256                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4257                                         SCTP_INP_RLOCK(inp);
4258                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4259                                                 SCTP_TCB_LOCK(stcb);
4260                                                 if (sack->sack_delay) {
4261                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4262                                                 }
4263                                                 if (sack->sack_freq) {
4264                                                         stcb->asoc.sack_freq = sack->sack_freq;
4265                                                 }
4266                                                 SCTP_TCB_UNLOCK(stcb);
4267                                         }
4268                                         SCTP_INP_RUNLOCK(inp);
4269                                 }
4270                         }
4271                         break;
4272                 }
4273         case SCTP_AUTH_CHUNK:
4274                 {
4275                         struct sctp_authchunk *sauth;
4276
4277                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4278
4279                         SCTP_INP_WLOCK(inp);
4280                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4281                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4282                                 error = EINVAL;
4283                         }
4284                         SCTP_INP_WUNLOCK(inp);
4285                         break;
4286                 }
4287         case SCTP_AUTH_KEY:
4288                 {
4289                         struct sctp_authkey *sca;
4290                         struct sctp_keyhead *shared_keys;
4291                         sctp_sharedkey_t *shared_key;
4292                         sctp_key_t *key = NULL;
4293                         size_t size;
4294
4295                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4296                         if (sca->sca_keylength == 0) {
4297                                 size = optsize - sizeof(struct sctp_authkey);
4298                         } else {
4299                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4300                                         size = sca->sca_keylength;
4301                                 } else {
4302                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4303                                         error = EINVAL;
4304                                         break;
4305                                 }
4306                         }
4307                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4308
4309                         if (stcb) {
4310                                 shared_keys = &stcb->asoc.shared_keys;
4311                                 /* clear the cached keys for this key id */
4312                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4313                                 /*
4314                                  * create the new shared key and
4315                                  * insert/replace it
4316                                  */
4317                                 if (size > 0) {
4318                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4319                                         if (key == NULL) {
4320                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4321                                                 error = ENOMEM;
4322                                                 SCTP_TCB_UNLOCK(stcb);
4323                                                 break;
4324                                         }
4325                                 }
4326                                 shared_key = sctp_alloc_sharedkey();
4327                                 if (shared_key == NULL) {
4328                                         sctp_free_key(key);
4329                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4330                                         error = ENOMEM;
4331                                         SCTP_TCB_UNLOCK(stcb);
4332                                         break;
4333                                 }
4334                                 shared_key->key = key;
4335                                 shared_key->keyid = sca->sca_keynumber;
4336                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4337                                 SCTP_TCB_UNLOCK(stcb);
4338                         } else {
4339                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4340                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4341                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4342                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4343                                         SCTP_INP_WLOCK(inp);
4344                                         shared_keys = &inp->sctp_ep.shared_keys;
4345                                         /*
4346                                          * clear the cached keys on all
4347                                          * assocs for this key id
4348                                          */
4349                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4350                                         /*
4351                                          * create the new shared key and
4352                                          * insert/replace it
4353                                          */
4354                                         if (size > 0) {
4355                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4356                                                 if (key == NULL) {
4357                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4358                                                         error = ENOMEM;
4359                                                         SCTP_INP_WUNLOCK(inp);
4360                                                         break;
4361                                                 }
4362                                         }
4363                                         shared_key = sctp_alloc_sharedkey();
4364                                         if (shared_key == NULL) {
4365                                                 sctp_free_key(key);
4366                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4367                                                 error = ENOMEM;
4368                                                 SCTP_INP_WUNLOCK(inp);
4369                                                 break;
4370                                         }
4371                                         shared_key->key = key;
4372                                         shared_key->keyid = sca->sca_keynumber;
4373                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4374                                         SCTP_INP_WUNLOCK(inp);
4375                                 }
4376                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4377                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4378                                         SCTP_INP_RLOCK(inp);
4379                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4380                                                 SCTP_TCB_LOCK(stcb);
4381                                                 shared_keys = &stcb->asoc.shared_keys;
4382                                                 /*
4383                                                  * clear the cached keys for
4384                                                  * this key id
4385                                                  */
4386                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4387                                                 /*
4388                                                  * create the new shared key
4389                                                  * and insert/replace it
4390                                                  */
4391                                                 if (size > 0) {
4392                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4393                                                         if (key == NULL) {
4394                                                                 SCTP_TCB_UNLOCK(stcb);
4395                                                                 continue;
4396                                                         }
4397                                                 }
4398                                                 shared_key = sctp_alloc_sharedkey();
4399                                                 if (shared_key == NULL) {
4400                                                         sctp_free_key(key);
4401                                                         SCTP_TCB_UNLOCK(stcb);
4402                                                         continue;
4403                                                 }
4404                                                 shared_key->key = key;
4405                                                 shared_key->keyid = sca->sca_keynumber;
4406                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4407                                                 SCTP_TCB_UNLOCK(stcb);
4408                                         }
4409                                         SCTP_INP_RUNLOCK(inp);
4410                                 }
4411                         }
4412                         break;
4413                 }
4414         case SCTP_HMAC_IDENT:
4415                 {
4416                         struct sctp_hmacalgo *shmac;
4417                         sctp_hmaclist_t *hmaclist;
4418                         uint16_t hmacid;
4419                         uint32_t i;
4420
4421                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4422                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4423                             (shmac->shmac_number_of_idents > 0xffff)) {
4424                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4425                                 error = EINVAL;
4426                                 break;
4427                         }
4428                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4429                         if (hmaclist == NULL) {
4430                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4431                                 error = ENOMEM;
4432                                 break;
4433                         }
4434                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4435                                 hmacid = shmac->shmac_idents[i];
4436                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4437                                          /* invalid HMACs were found */ ;
4438                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4439                                         error = EINVAL;
4440                                         sctp_free_hmaclist(hmaclist);
4441                                         goto sctp_set_hmac_done;
4442                                 }
4443                         }
4444                         for (i = 0; i < hmaclist->num_algo; i++) {
4445                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4446                                         /* already in list */
4447                                         break;
4448                                 }
4449                         }
4450                         if (i == hmaclist->num_algo) {
4451                                 /* not found in list */
4452                                 sctp_free_hmaclist(hmaclist);
4453                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4454                                 error = EINVAL;
4455                                 break;
4456                         }
4457                         /* set it on the endpoint */
4458                         SCTP_INP_WLOCK(inp);
4459                         if (inp->sctp_ep.local_hmacs)
4460                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4461                         inp->sctp_ep.local_hmacs = hmaclist;
4462                         SCTP_INP_WUNLOCK(inp);
4463         sctp_set_hmac_done:
4464                         break;
4465                 }
4466         case SCTP_AUTH_ACTIVE_KEY:
4467                 {
4468                         struct sctp_authkeyid *scact;
4469
4470                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4471                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4472
4473                         /* set the active key on the right place */
4474                         if (stcb) {
4475                                 /* set the active key on the assoc */
4476                                 if (sctp_auth_setactivekey(stcb,
4477                                     scact->scact_keynumber)) {
4478                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4479                                             SCTP_FROM_SCTP_USRREQ,
4480                                             EINVAL);
4481                                         error = EINVAL;
4482                                 }
4483                                 SCTP_TCB_UNLOCK(stcb);
4484                         } else {
4485                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4486                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4487                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4488                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4489                                         SCTP_INP_WLOCK(inp);
4490                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4491                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4492                                                 error = EINVAL;
4493                                         }
4494                                         SCTP_INP_WUNLOCK(inp);
4495                                 }
4496                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4497                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4498                                         SCTP_INP_RLOCK(inp);
4499                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4500                                                 SCTP_TCB_LOCK(stcb);
4501                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4502                                                 SCTP_TCB_UNLOCK(stcb);
4503                                         }
4504                                         SCTP_INP_RUNLOCK(inp);
4505                                 }
4506                         }
4507                         break;
4508                 }
4509         case SCTP_AUTH_DELETE_KEY:
4510                 {
4511                         struct sctp_authkeyid *scdel;
4512
4513                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4514                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4515
4516                         /* delete the key from the right place */
4517                         if (stcb) {
4518                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4519                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4520                                         error = EINVAL;
4521                                 }
4522                                 SCTP_TCB_UNLOCK(stcb);
4523                         } else {
4524                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4525                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4526                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4527                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4528                                         SCTP_INP_WLOCK(inp);
4529                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4530                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4531                                                 error = EINVAL;
4532                                         }
4533                                         SCTP_INP_WUNLOCK(inp);
4534                                 }
4535                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4536                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4537                                         SCTP_INP_RLOCK(inp);
4538                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4539                                                 SCTP_TCB_LOCK(stcb);
4540                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4541                                                 SCTP_TCB_UNLOCK(stcb);
4542                                         }
4543                                         SCTP_INP_RUNLOCK(inp);
4544                                 }
4545                         }
4546                         break;
4547                 }
4548         case SCTP_AUTH_DEACTIVATE_KEY:
4549                 {
4550                         struct sctp_authkeyid *keyid;
4551
4552                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4553                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4554
4555                         /* deactivate the key from the right place */
4556                         if (stcb) {
4557                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4558                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4559                                         error = EINVAL;
4560                                 }
4561                                 SCTP_TCB_UNLOCK(stcb);
4562                         } else {
4563                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4564                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4565                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4566                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4567                                         SCTP_INP_WLOCK(inp);
4568                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4569                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4570                                                 error = EINVAL;
4571                                         }
4572                                         SCTP_INP_WUNLOCK(inp);
4573                                 }
4574                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4575                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4576                                         SCTP_INP_RLOCK(inp);
4577                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4578                                                 SCTP_TCB_LOCK(stcb);
4579                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4580                                                 SCTP_TCB_UNLOCK(stcb);
4581                                         }
4582                                         SCTP_INP_RUNLOCK(inp);
4583                                 }
4584                         }
4585                         break;
4586                 }
4587         case SCTP_ENABLE_STREAM_RESET:
4588                 {
4589                         struct sctp_assoc_value *av;
4590
4591                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4592                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4593                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4594                                 error = EINVAL;
4595                                 break;
4596                         }
4597                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4598                         if (stcb) {
4599                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4600                                 SCTP_TCB_UNLOCK(stcb);
4601                         } else {
4602                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4603                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4604                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4605                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4606                                         SCTP_INP_WLOCK(inp);
4607                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4608                                         SCTP_INP_WUNLOCK(inp);
4609                                 }
4610                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4611                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4612                                         SCTP_INP_RLOCK(inp);
4613                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4614                                                 SCTP_TCB_LOCK(stcb);
4615                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4616                                                 SCTP_TCB_UNLOCK(stcb);
4617                                         }
4618                                         SCTP_INP_RUNLOCK(inp);
4619                                 }
4620                         }
4621                         break;
4622                 }
4623         case SCTP_RESET_STREAMS:
4624                 {
4625                         struct sctp_reset_streams *strrst;
4626                         int i, send_out = 0;
4627                         int send_in = 0;
4628
4629                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4630                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4631                         if (stcb == NULL) {
4632                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4633                                 error = ENOENT;
4634                                 break;
4635                         }
4636                         if (stcb->asoc.reconfig_supported == 0) {
4637                                 /*
4638                                  * Peer does not support the chunk type.
4639                                  */
4640                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4641                                 error = EOPNOTSUPP;
4642                                 SCTP_TCB_UNLOCK(stcb);
4643                                 break;
4644                         }
4645                         if (sizeof(struct sctp_reset_streams) +
4646                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4647                                 error = EINVAL;
4648                                 SCTP_TCB_UNLOCK(stcb);
4649                                 break;
4650                         }
4651                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4652                                 send_in = 1;
4653                                 if (stcb->asoc.stream_reset_outstanding) {
4654                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4655                                         error = EALREADY;
4656                                         SCTP_TCB_UNLOCK(stcb);
4657                                         break;
4658                                 }
4659                         }
4660                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4661                                 send_out = 1;
4662                         }
4663                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4664                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4665                                 error = ENOMEM;
4666                                 SCTP_TCB_UNLOCK(stcb);
4667                                 break;
4668                         }
4669                         if ((send_in == 0) && (send_out == 0)) {
4670                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4671                                 error = EINVAL;
4672                                 SCTP_TCB_UNLOCK(stcb);
4673                                 break;
4674                         }
4675                         for (i = 0; i < strrst->srs_number_streams; i++) {
4676                                 if ((send_in) &&
4677                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4679                                         error = EINVAL;
4680                                         break;
4681                                 }
4682                                 if ((send_out) &&
4683                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4684                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4685                                         error = EINVAL;
4686                                         break;
4687                                 }
4688                         }
4689                         if (error) {
4690                                 SCTP_TCB_UNLOCK(stcb);
4691                                 break;
4692                         }
4693                         if (send_out) {
4694                                 int cnt;
4695                                 uint16_t strm;
4696
4697                                 if (strrst->srs_number_streams) {
4698                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4699                                                 strm = strrst->srs_stream_list[i];
4700                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4701                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4702                                                         cnt++;
4703                                                 }
4704                                         }
4705                                 } else {
4706                                         /* Its all */
4707                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4708                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4709                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4710                                                         cnt++;
4711                                                 }
4712                                         }
4713                                 }
4714                         }
4715                         if (send_in) {
4716                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4717                                     strrst->srs_stream_list,
4718                                     send_in, 0, 0, 0, 0, 0);
4719                         } else {
4720                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4721                         }
4722                         if (error == 0) {
4723                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4724                         } else {
4725                                 /*
4726                                  * For outgoing streams don't report any
4727                                  * problems in sending the request to the
4728                                  * application. XXX: Double check resetting
4729                                  * incoming streams.
4730                                  */
4731                                 error = 0;
4732                         }
4733                         SCTP_TCB_UNLOCK(stcb);
4734                         break;
4735                 }
4736         case SCTP_ADD_STREAMS:
4737                 {
4738                         struct sctp_add_streams *stradd;
4739                         uint8_t addstream = 0;
4740                         uint16_t add_o_strmcnt = 0;
4741                         uint16_t add_i_strmcnt = 0;
4742
4743                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4744                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4745                         if (stcb == NULL) {
4746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4747                                 error = ENOENT;
4748                                 break;
4749                         }
4750                         if (stcb->asoc.reconfig_supported == 0) {
4751                                 /*
4752                                  * Peer does not support the chunk type.
4753                                  */
4754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4755                                 error = EOPNOTSUPP;
4756                                 SCTP_TCB_UNLOCK(stcb);
4757                                 break;
4758                         }
4759                         if (stcb->asoc.stream_reset_outstanding) {
4760                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4761                                 error = EALREADY;
4762                                 SCTP_TCB_UNLOCK(stcb);
4763                                 break;
4764                         }
4765                         if ((stradd->sas_outstrms == 0) &&
4766                             (stradd->sas_instrms == 0)) {
4767                                 error = EINVAL;
4768                                 goto skip_stuff;
4769                         }
4770                         if (stradd->sas_outstrms) {
4771                                 addstream = 1;
4772                                 /* We allocate here */
4773                                 add_o_strmcnt = stradd->sas_outstrms;
4774                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4775                                         /* You can't have more than 64k */
4776                                         error = EINVAL;
4777                                         goto skip_stuff;
4778                                 }
4779                         }
4780                         if (stradd->sas_instrms) {
4781                                 int cnt;
4782
4783                                 addstream |= 2;
4784                                 /*
4785                                  * We allocate inside
4786                                  * sctp_send_str_reset_req()
4787                                  */
4788                                 add_i_strmcnt = stradd->sas_instrms;
4789                                 cnt = add_i_strmcnt;
4790                                 cnt += stcb->asoc.streamincnt;
4791                                 if (cnt > 0x0000ffff) {
4792                                         /* You can't have more than 64k */
4793                                         error = EINVAL;
4794                                         goto skip_stuff;
4795                                 }
4796                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4797                                         /* More than you are allowed */
4798                                         error = EINVAL;
4799                                         goto skip_stuff;
4800                                 }
4801                         }
4802                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4803                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4804         skip_stuff:
4805                         SCTP_TCB_UNLOCK(stcb);
4806                         break;
4807                 }
4808         case SCTP_RESET_ASSOC:
4809                 {
4810                         int i;
4811                         uint32_t *value;
4812
4813                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4814                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4815                         if (stcb == NULL) {
4816                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4817                                 error = ENOENT;
4818                                 break;
4819                         }
4820                         if (stcb->asoc.reconfig_supported == 0) {
4821                                 /*
4822                                  * Peer does not support the chunk type.
4823                                  */
4824                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4825                                 error = EOPNOTSUPP;
4826                                 SCTP_TCB_UNLOCK(stcb);
4827                                 break;
4828                         }
4829                         if (stcb->asoc.stream_reset_outstanding) {
4830                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4831                                 error = EALREADY;
4832                                 SCTP_TCB_UNLOCK(stcb);
4833                                 break;
4834                         }
4835                         /*
4836                          * Is there any data pending in the send or sent
4837                          * queues?
4838                          */
4839                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4840                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4841                 busy_out:
4842                                 error = EBUSY;
4843                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4844                                 SCTP_TCB_UNLOCK(stcb);
4845                                 break;
4846                         }
4847                         /* Do any streams have data queued? */
4848                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4849                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4850                                         goto busy_out;
4851                                 }
4852                         }
4853                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4854                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4855                         SCTP_TCB_UNLOCK(stcb);
4856                         break;
4857                 }
4858         case SCTP_CONNECT_X:
4859                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4860                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4861                         error = EINVAL;
4862                         break;
4863                 }
4864                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4865                 break;
4866         case SCTP_CONNECT_X_DELAYED:
4867                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4868                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4869                         error = EINVAL;
4870                         break;
4871                 }
4872                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4873                 break;
4874         case SCTP_CONNECT_X_COMPLETE:
4875                 {
4876                         struct sockaddr *sa;
4877
4878                         /* FIXME MT: check correct? */
4879                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4880
4881                         /* find tcb */
4882                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4883                                 SCTP_INP_RLOCK(inp);
4884                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4885                                 if (stcb) {
4886                                         SCTP_TCB_LOCK(stcb);
4887                                 }
4888                                 SCTP_INP_RUNLOCK(inp);
4889                         } else {
4890                                 /*
4891                                  * We increment here since
4892                                  * sctp_findassociation_ep_addr() wil do a
4893                                  * decrement if it finds the stcb as long as
4894                                  * the locked tcb (last argument) is NOT a
4895                                  * TCB.. aka NULL.
4896                                  */
4897                                 SCTP_INP_INCR_REF(inp);
4898                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4899                                 if (stcb == NULL) {
4900                                         SCTP_INP_DECR_REF(inp);
4901                                 }
4902                         }
4903
4904                         if (stcb == NULL) {
4905                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4906                                 error = ENOENT;
4907                                 break;
4908                         }
4909                         if (stcb->asoc.delayed_connection == 1) {
4910                                 stcb->asoc.delayed_connection = 0;
4911                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4912                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4913                                     stcb->asoc.primary_destination,
4914                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4915                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4916                         } else {
4917                                 /*
4918                                  * already expired or did not use delayed
4919                                  * connectx
4920                                  */
4921                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4922                                 error = EALREADY;
4923                         }
4924                         SCTP_TCB_UNLOCK(stcb);
4925                         break;
4926                 }
4927         case SCTP_MAX_BURST:
4928                 {
4929                         struct sctp_assoc_value *av;
4930
4931                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4932                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4933
4934                         if (stcb) {
4935                                 stcb->asoc.max_burst = av->assoc_value;
4936                                 SCTP_TCB_UNLOCK(stcb);
4937                         } else {
4938                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4939                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4940                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4941                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4942                                         SCTP_INP_WLOCK(inp);
4943                                         inp->sctp_ep.max_burst = av->assoc_value;
4944                                         SCTP_INP_WUNLOCK(inp);
4945                                 }
4946                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4947                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4948                                         SCTP_INP_RLOCK(inp);
4949                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4950                                                 SCTP_TCB_LOCK(stcb);
4951                                                 stcb->asoc.max_burst = av->assoc_value;
4952                                                 SCTP_TCB_UNLOCK(stcb);
4953                                         }
4954                                         SCTP_INP_RUNLOCK(inp);
4955                                 }
4956                         }
4957                         break;
4958                 }
4959         case SCTP_MAXSEG:
4960                 {
4961                         struct sctp_assoc_value *av;
4962                         int ovh;
4963
4964                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4965                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4966
4967                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4968                                 ovh = SCTP_MED_OVERHEAD;
4969                         } else {
4970                                 ovh = SCTP_MED_V4_OVERHEAD;
4971                         }
4972                         if (stcb) {
4973                                 if (av->assoc_value) {
4974                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4975                                 } else {
4976                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4977                                 }
4978                                 SCTP_TCB_UNLOCK(stcb);
4979                         } else {
4980                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4981                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4982                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4983                                         SCTP_INP_WLOCK(inp);
4984                                         /*
4985                                          * FIXME MT: I think this is not in
4986                                          * tune with the API ID
4987                                          */
4988                                         if (av->assoc_value) {
4989                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4990                                         } else {
4991                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4992                                         }
4993                                         SCTP_INP_WUNLOCK(inp);
4994                                 } else {
4995                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4996                                         error = EINVAL;
4997                                 }
4998                         }
4999                         break;
5000                 }
5001         case SCTP_EVENTS:
5002                 {
5003                         struct sctp_event_subscribe *events;
5004
5005                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5006
5007                         SCTP_INP_WLOCK(inp);
5008                         if (events->sctp_data_io_event) {
5009                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5010                         } else {
5011                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5012                         }
5013
5014                         if (events->sctp_association_event) {
5015                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5016                         } else {
5017                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5018                         }
5019
5020                         if (events->sctp_address_event) {
5021                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5022                         } else {
5023                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5024                         }
5025
5026                         if (events->sctp_send_failure_event) {
5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5028                         } else {
5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5030                         }
5031
5032                         if (events->sctp_peer_error_event) {
5033                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5034                         } else {
5035                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5036                         }
5037
5038                         if (events->sctp_shutdown_event) {
5039                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5040                         } else {
5041                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5042                         }
5043
5044                         if (events->sctp_partial_delivery_event) {
5045                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5046                         } else {
5047                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5048                         }
5049
5050                         if (events->sctp_adaptation_layer_event) {
5051                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5052                         } else {
5053                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5054                         }
5055
5056                         if (events->sctp_authentication_event) {
5057                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5058                         } else {
5059                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5060                         }
5061
5062                         if (events->sctp_sender_dry_event) {
5063                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5064                         } else {
5065                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5066                         }
5067
5068                         if (events->sctp_stream_reset_event) {
5069                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5070                         } else {
5071                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5072                         }
5073                         SCTP_INP_WUNLOCK(inp);
5074
5075                         SCTP_INP_RLOCK(inp);
5076                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5077                                 SCTP_TCB_LOCK(stcb);
5078                                 if (events->sctp_association_event) {
5079                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5080                                 } else {
5081                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5082                                 }
5083                                 if (events->sctp_address_event) {
5084                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5085                                 } else {
5086                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5087                                 }
5088                                 if (events->sctp_send_failure_event) {
5089                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5090                                 } else {
5091                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5092                                 }
5093                                 if (events->sctp_peer_error_event) {
5094                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5095                                 } else {
5096                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5097                                 }
5098                                 if (events->sctp_shutdown_event) {
5099                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5100                                 } else {
5101                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5102                                 }
5103                                 if (events->sctp_partial_delivery_event) {
5104                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5105                                 } else {
5106                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5107                                 }
5108                                 if (events->sctp_adaptation_layer_event) {
5109                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5110                                 } else {
5111                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5112                                 }
5113                                 if (events->sctp_authentication_event) {
5114                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5115                                 } else {
5116                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5117                                 }
5118                                 if (events->sctp_sender_dry_event) {
5119                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5120                                 } else {
5121                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5122                                 }
5123                                 if (events->sctp_stream_reset_event) {
5124                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5125                                 } else {
5126                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5127                                 }
5128                                 SCTP_TCB_UNLOCK(stcb);
5129                         }
5130                         /*
5131                          * Send up the sender dry event only for 1-to-1
5132                          * style sockets.
5133                          */
5134                         if (events->sctp_sender_dry_event) {
5135                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5136                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5137                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5138                                         if (stcb) {
5139                                                 SCTP_TCB_LOCK(stcb);
5140                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5141                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5142                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5143                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5144                                                 }
5145                                                 SCTP_TCB_UNLOCK(stcb);
5146                                         }
5147                                 }
5148                         }
5149                         SCTP_INP_RUNLOCK(inp);
5150                         break;
5151                 }
5152         case SCTP_ADAPTATION_LAYER:
5153                 {
5154                         struct sctp_setadaptation *adap_bits;
5155
5156                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5157                         SCTP_INP_WLOCK(inp);
5158                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5159                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5160                         SCTP_INP_WUNLOCK(inp);
5161                         break;
5162                 }
5163 #ifdef SCTP_DEBUG
5164         case SCTP_SET_INITIAL_DBG_SEQ:
5165                 {
5166                         uint32_t *vvv;
5167
5168                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5169                         SCTP_INP_WLOCK(inp);
5170                         inp->sctp_ep.initial_sequence_debug = *vvv;
5171                         SCTP_INP_WUNLOCK(inp);
5172                         break;
5173                 }
5174 #endif
5175         case SCTP_DEFAULT_SEND_PARAM:
5176                 {
5177                         struct sctp_sndrcvinfo *s_info;
5178
5179                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5180                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5181
5182                         if (stcb) {
5183                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5184                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5185                                 } else {
5186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5187                                         error = EINVAL;
5188                                 }
5189                                 SCTP_TCB_UNLOCK(stcb);
5190                         } else {
5191                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5192                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5193                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5194                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5195                                         SCTP_INP_WLOCK(inp);
5196                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5197                                         SCTP_INP_WUNLOCK(inp);
5198                                 }
5199                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5200                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5201                                         SCTP_INP_RLOCK(inp);
5202                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5203                                                 SCTP_TCB_LOCK(stcb);
5204                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5205                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5206                                                 }
5207                                                 SCTP_TCB_UNLOCK(stcb);
5208                                         }
5209                                         SCTP_INP_RUNLOCK(inp);
5210                                 }
5211                         }
5212                         break;
5213                 }
5214         case SCTP_PEER_ADDR_PARAMS:
5215                 {
5216                         struct sctp_paddrparams *paddrp;
5217                         struct sctp_nets *net;
5218                         struct sockaddr *addr;
5219
5220 #if defined(INET) && defined(INET6)
5221                         struct sockaddr_in sin_store;
5222
5223 #endif
5224
5225                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5226                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5227
5228 #if defined(INET) && defined(INET6)
5229                         if (paddrp->spp_address.ss_family == AF_INET6) {
5230                                 struct sockaddr_in6 *sin6;
5231
5232                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5233                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5234                                         in6_sin6_2_sin(&sin_store, sin6);
5235                                         addr = (struct sockaddr *)&sin_store;
5236                                 } else {
5237                                         addr = (struct sockaddr *)&paddrp->spp_address;
5238                                 }
5239                         } else {
5240                                 addr = (struct sockaddr *)&paddrp->spp_address;
5241                         }
5242 #else
5243                         addr = (struct sockaddr *)&paddrp->spp_address;
5244 #endif
5245                         if (stcb != NULL) {
5246                                 net = sctp_findnet(stcb, addr);
5247                         } else {
5248                                 /*
5249                                  * We increment here since
5250                                  * sctp_findassociation_ep_addr() wil do a
5251                                  * decrement if it finds the stcb as long as
5252                                  * the locked tcb (last argument) is NOT a
5253                                  * TCB.. aka NULL.
5254                                  */
5255                                 net = NULL;
5256                                 SCTP_INP_INCR_REF(inp);
5257                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5258                                     &net, NULL, NULL);
5259                                 if (stcb == NULL) {
5260                                         SCTP_INP_DECR_REF(inp);
5261                                 }
5262                         }
5263                         if ((stcb != NULL) && (net == NULL)) {
5264 #ifdef INET
5265                                 if (addr->sa_family == AF_INET) {
5266
5267                                         struct sockaddr_in *sin;
5268
5269                                         sin = (struct sockaddr_in *)addr;
5270                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5271                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5272                                                 SCTP_TCB_UNLOCK(stcb);
5273                                                 error = EINVAL;
5274                                                 break;
5275                                         }
5276                                 } else
5277 #endif
5278 #ifdef INET6
5279                                 if (addr->sa_family == AF_INET6) {
5280                                         struct sockaddr_in6 *sin6;
5281
5282                                         sin6 = (struct sockaddr_in6 *)addr;
5283                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5284                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5285                                                 SCTP_TCB_UNLOCK(stcb);
5286                                                 error = EINVAL;
5287                                                 break;
5288                                         }
5289                                 } else
5290 #endif
5291                                 {
5292                                         error = EAFNOSUPPORT;
5293                                         SCTP_TCB_UNLOCK(stcb);
5294                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5295                                         break;
5296                                 }
5297                         }
5298                         /* sanity checks */
5299                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5300                                 if (stcb)
5301                                         SCTP_TCB_UNLOCK(stcb);
5302                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5303                                 return (EINVAL);
5304                         }
5305                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5306                                 if (stcb)
5307                                         SCTP_TCB_UNLOCK(stcb);
5308                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5309                                 return (EINVAL);
5310                         }
5311                         if (stcb != NULL) {
5312                                 /************************TCB SPECIFIC SET ******************/
5313                                 if (net != NULL) {
5314                                         /************************NET SPECIFIC SET ******************/
5315                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5316                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5317                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5318                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5319                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5320                                                 }
5321                                                 net->dest_state |= SCTP_ADDR_NOHB;
5322                                         }
5323                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5324                                                 if (paddrp->spp_hbinterval) {
5325                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5326                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5327                                                         net->heart_beat_delay = 0;
5328                                                 }
5329                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5330                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5331                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5332                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5333                                         }
5334                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5335                                                 /* on demand HB */
5336                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5337                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5338                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5339                                         }
5340                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5341                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5342                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5343                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5344                                                 }
5345                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5346                                                 net->mtu = paddrp->spp_pathmtu;
5347                                                 switch (net->ro._l_addr.sa.sa_family) {
5348 #ifdef INET
5349                                                 case AF_INET:
5350                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5351                                                         break;
5352 #endif
5353 #ifdef INET6
5354                                                 case AF_INET6:
5355                                                         net->mtu += SCTP_MIN_OVERHEAD;
5356                                                         break;
5357 #endif
5358                                                 default:
5359                                                         break;
5360                                                 }
5361                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5362                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5363                                                 }
5364                                         }
5365                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5366                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5367                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5368                                                 }
5369                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5370                                         }
5371                                         if (paddrp->spp_pathmaxrxt) {
5372                                                 if (net->dest_state & SCTP_ADDR_PF) {
5373                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5374                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5375                                                         }
5376                                                 } else {
5377                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5378                                                             (net->error_count > net->pf_threshold)) {
5379                                                                 net->dest_state |= SCTP_ADDR_PF;
5380                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5381                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5382                                                                     stcb->sctp_ep, stcb, net,
5383                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5384                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5385                                                         }
5386                                                 }
5387                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5388                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5389                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5390                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5391                                                         }
5392                                                 } else {
5393                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5394                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5395                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5396                                                         }
5397                                                 }
5398                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5399                                         }
5400                                         if (paddrp->spp_flags & SPP_DSCP) {
5401                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5402                                                 net->dscp |= 0x01;
5403                                         }
5404 #ifdef INET6
5405                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5406                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5407                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5408                                                         net->flowlabel |= 0x80000000;
5409                                                 }
5410                                         }
5411 #endif
5412                                 } else {
5413                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5414                                         if (paddrp->spp_pathmaxrxt != 0) {
5415                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5416                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5417                                                         if (net->dest_state & SCTP_ADDR_PF) {
5418                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5419                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5420                                                                 }
5421                                                         } else {
5422                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5423                                                                     (net->error_count > net->pf_threshold)) {
5424                                                                         net->dest_state |= SCTP_ADDR_PF;
5425                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5426                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5427                                                                             stcb->sctp_ep, stcb, net,
5428                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5429                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5430                                                                 }
5431                                                         }
5432                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5433                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5434                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5435                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5436                                                                 }
5437                                                         } else {
5438                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5439                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5440                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5441                                                                 }
5442                                                         }
5443                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5444                                                 }
5445                                         }
5446                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5447                                                 if (paddrp->spp_hbinterval != 0) {
5448                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5449                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5450                                                         stcb->asoc.heart_beat_delay = 0;
5451                                                 }
5452                                                 /* Turn back on the timer */
5453                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5454                                                         if (paddrp->spp_hbinterval != 0) {
5455                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5456                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5457                                                                 net->heart_beat_delay = 0;
5458                                                         }
5459                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5460                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5461                                                         }
5462                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5463                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5464                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5465                                                 }
5466                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5467                                         }
5468                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5469                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5470                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5471                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5472                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5473                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5474                                                                             inp, stcb, net,
5475                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5476                                                                 }
5477                                                         }
5478                                                 }
5479                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5480                                         }
5481                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5482                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5483                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5484                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5485                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5486                                                         }
5487                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5488                                                         net->mtu = paddrp->spp_pathmtu;
5489                                                         switch (net->ro._l_addr.sa.sa_family) {
5490 #ifdef INET
5491                                                         case AF_INET:
5492                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5493                                                                 break;
5494 #endif
5495 #ifdef INET6
5496                                                         case AF_INET6:
5497                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5498                                                                 break;
5499 #endif
5500                                                         default:
5501                                                                 break;
5502                                                         }
5503                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5504                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5505                                                         }
5506                                                 }
5507                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5508                                         }
5509                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5510                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5511                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5512                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5513                                                         }
5514                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5515                                                 }
5516                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5517                                         }
5518                                         if (paddrp->spp_flags & SPP_DSCP) {
5519                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5520                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5521                                                         net->dscp |= 0x01;
5522                                                 }
5523                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5524                                                 stcb->asoc.default_dscp |= 0x01;
5525                                         }
5526 #ifdef INET6
5527                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5528                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5529                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5530                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5531                                                                 net->flowlabel |= 0x80000000;
5532                                                         }
5533                                                 }
5534                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5535                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5536                                         }
5537 #endif
5538                                 }
5539                                 SCTP_TCB_UNLOCK(stcb);
5540                         } else {
5541                                 /************************NO TCB, SET TO default stuff ******************/
5542                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5543                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5544                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5545                                         SCTP_INP_WLOCK(inp);
5546                                         /*
5547                                          * For the TOS/FLOWLABEL stuff you
5548                                          * set it with the options on the
5549                                          * socket
5550                                          */
5551                                         if (paddrp->spp_pathmaxrxt != 0) {
5552                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5553                                         }
5554                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5555                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5556                                         else if (paddrp->spp_hbinterval != 0) {
5557                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5558                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5559                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5560                                         }
5561                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5562                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5563                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5564                                                 } else if (paddrp->spp_hbinterval) {
5565                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5566                                                 }
5567                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5568                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5569                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5570                                         }
5571                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5572                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5573                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5574                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5575                                         }
5576                                         if (paddrp->spp_flags & SPP_DSCP) {
5577                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5578                                                 inp->sctp_ep.default_dscp |= 0x01;
5579                                         }
5580 #ifdef INET6
5581                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5582                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5583                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5584                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5585                                                 }
5586                                         }
5587 #endif
5588                                         SCTP_INP_WUNLOCK(inp);
5589                                 } else {
5590                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5591                                         error = EINVAL;
5592                                 }
5593                         }
5594                         break;
5595                 }
5596         case SCTP_RTOINFO:
5597                 {
5598                         struct sctp_rtoinfo *srto;
5599                         uint32_t new_init, new_min, new_max;
5600
5601                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5602                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5603
5604                         if (stcb) {
5605                                 if (srto->srto_initial)
5606                                         new_init = srto->srto_initial;
5607                                 else
5608                                         new_init = stcb->asoc.initial_rto;
5609                                 if (srto->srto_max)
5610                                         new_max = srto->srto_max;
5611                                 else
5612                                         new_max = stcb->asoc.maxrto;
5613                                 if (srto->srto_min)
5614                                         new_min = srto->srto_min;
5615                                 else
5616                                         new_min = stcb->asoc.minrto;
5617                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5618                                         stcb->asoc.initial_rto = new_init;
5619                                         stcb->asoc.maxrto = new_max;
5620                                         stcb->asoc.minrto = new_min;
5621                                 } else {
5622                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5623                                         error = EINVAL;
5624                                 }
5625                                 SCTP_TCB_UNLOCK(stcb);
5626                         } else {
5627                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5628                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5629                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5630                                         SCTP_INP_WLOCK(inp);
5631                                         if (srto->srto_initial)
5632                                                 new_init = srto->srto_initial;
5633                                         else
5634                                                 new_init = inp->sctp_ep.initial_rto;
5635                                         if (srto->srto_max)
5636                                                 new_max = srto->srto_max;
5637                                         else
5638                                                 new_max = inp->sctp_ep.sctp_maxrto;
5639                                         if (srto->srto_min)
5640                                                 new_min = srto->srto_min;
5641                                         else
5642                                                 new_min = inp->sctp_ep.sctp_minrto;
5643                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5644                                                 inp->sctp_ep.initial_rto = new_init;
5645                                                 inp->sctp_ep.sctp_maxrto = new_max;
5646                                                 inp->sctp_ep.sctp_minrto = new_min;
5647                                         } else {
5648                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5649                                                 error = EINVAL;
5650                                         }
5651                                         SCTP_INP_WUNLOCK(inp);
5652                                 } else {
5653                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5654                                         error = EINVAL;
5655                                 }
5656                         }
5657                         break;
5658                 }
5659         case SCTP_ASSOCINFO:
5660                 {
5661                         struct sctp_assocparams *sasoc;
5662
5663                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5664                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5665                         if (sasoc->sasoc_cookie_life) {
5666                                 /* boundary check the cookie life */
5667                                 if (sasoc->sasoc_cookie_life < 1000)
5668                                         sasoc->sasoc_cookie_life = 1000;
5669                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5670                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5671                                 }
5672                         }
5673                         if (stcb) {
5674                                 if (sasoc->sasoc_asocmaxrxt)
5675                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5676                                 if (sasoc->sasoc_cookie_life) {
5677                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5678                                 }
5679                                 SCTP_TCB_UNLOCK(stcb);
5680                         } else {
5681                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5682                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5683                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5684                                         SCTP_INP_WLOCK(inp);
5685                                         if (sasoc->sasoc_asocmaxrxt)
5686                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5687                                         if (sasoc->sasoc_cookie_life) {
5688                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5689                                         }
5690                                         SCTP_INP_WUNLOCK(inp);
5691                                 } else {
5692                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5693                                         error = EINVAL;
5694                                 }
5695                         }
5696                         break;
5697                 }
5698         case SCTP_INITMSG:
5699                 {
5700                         struct sctp_initmsg *sinit;
5701
5702                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5703                         SCTP_INP_WLOCK(inp);
5704                         if (sinit->sinit_num_ostreams)
5705                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5706
5707                         if (sinit->sinit_max_instreams)
5708                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5709
5710                         if (sinit->sinit_max_attempts)
5711                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5712
5713                         if (sinit->sinit_max_init_timeo)
5714                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5715                         SCTP_INP_WUNLOCK(inp);
5716                         break;
5717                 }
5718         case SCTP_PRIMARY_ADDR:
5719                 {
5720                         struct sctp_setprim *spa;
5721                         struct sctp_nets *net;
5722                         struct sockaddr *addr;
5723
5724 #if defined(INET) && defined(INET6)
5725                         struct sockaddr_in sin_store;
5726
5727 #endif
5728
5729                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5730                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5731
5732 #if defined(INET) && defined(INET6)
5733                         if (spa->ssp_addr.ss_family == AF_INET6) {
5734                                 struct sockaddr_in6 *sin6;
5735
5736                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5737                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5738                                         in6_sin6_2_sin(&sin_store, sin6);
5739                                         addr = (struct sockaddr *)&sin_store;
5740                                 } else {
5741                                         addr = (struct sockaddr *)&spa->ssp_addr;
5742                                 }
5743                         } else {
5744                                 addr = (struct sockaddr *)&spa->ssp_addr;
5745                         }
5746 #else
5747                         addr = (struct sockaddr *)&spa->ssp_addr;
5748 #endif
5749                         if (stcb != NULL) {
5750                                 net = sctp_findnet(stcb, addr);
5751                         } else {
5752                                 /*
5753                                  * We increment here since
5754                                  * sctp_findassociation_ep_addr() wil do a
5755                                  * decrement if it finds the stcb as long as
5756                                  * the locked tcb (last argument) is NOT a
5757                                  * TCB.. aka NULL.
5758                                  */
5759                                 net = NULL;
5760                                 SCTP_INP_INCR_REF(inp);
5761                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5762                                     &net, NULL, NULL);
5763                                 if (stcb == NULL) {
5764                                         SCTP_INP_DECR_REF(inp);
5765                                 }
5766                         }
5767
5768                         if ((stcb != NULL) && (net != NULL)) {
5769                                 if (net != stcb->asoc.primary_destination) {
5770                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5771                                                 /* Ok we need to set it */
5772                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5773                                                         if ((stcb->asoc.alternate) &&
5774                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5775                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5776                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5777                                                                 stcb->asoc.alternate = NULL;
5778                                                         }
5779                                                 } else {
5780                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5781                                                         error = EINVAL;
5782                                                 }
5783                                         } else {
5784                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5785                                                 error = EINVAL;
5786                                         }
5787                                 }
5788                         } else {
5789                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5790                                 error = EINVAL;
5791                         }
5792                         if (stcb != NULL) {
5793                                 SCTP_TCB_UNLOCK(stcb);
5794                         }
5795                         break;
5796                 }
5797         case SCTP_SET_DYNAMIC_PRIMARY:
5798                 {
5799                         union sctp_sockstore *ss;
5800
5801                         error = priv_check(curthread,
5802                             PRIV_NETINET_RESERVEDPORT);
5803                         if (error)
5804                                 break;
5805
5806                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5807                         /* SUPER USER CHECK? */
5808                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5809                         break;
5810                 }
5811         case SCTP_SET_PEER_PRIMARY_ADDR:
5812                 {
5813                         struct sctp_setpeerprim *sspp;
5814                         struct sockaddr *addr;
5815
5816 #if defined(INET) && defined(INET6)
5817                         struct sockaddr_in sin_store;
5818
5819 #endif
5820
5821                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5822                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5823                         if (stcb != NULL) {
5824                                 struct sctp_ifa *ifa;
5825
5826 #if defined(INET) && defined(INET6)
5827                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5828                                         struct sockaddr_in6 *sin6;
5829
5830                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5831                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5832                                                 in6_sin6_2_sin(&sin_store, sin6);
5833                                                 addr = (struct sockaddr *)&sin_store;
5834                                         } else {
5835                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5836                                         }
5837                                 } else {
5838                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5839                                 }
5840 #else
5841                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5842 #endif
5843                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5844                                 if (ifa == NULL) {
5845                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5846                                         error = EINVAL;
5847                                         goto out_of_it;
5848                                 }
5849                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5850                                         /*
5851                                          * Must validate the ifa found is in
5852                                          * our ep
5853                                          */
5854                                         struct sctp_laddr *laddr;
5855                                         int found = 0;
5856
5857                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5858                                                 if (laddr->ifa == NULL) {
5859                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5860                                                             __func__);
5861                                                         continue;
5862                                                 }
5863                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5864                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5865                                                         continue;
5866                                                 }
5867                                                 if (laddr->ifa == ifa) {
5868                                                         found = 1;
5869                                                         break;
5870                                                 }
5871                                         }
5872                                         if (!found) {
5873                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5874                                                 error = EINVAL;
5875                                                 goto out_of_it;
5876                                         }
5877                                 } else {
5878                                         switch (addr->sa_family) {
5879 #ifdef INET
5880                                         case AF_INET:
5881                                                 {
5882                                                         struct sockaddr_in *sin;
5883
5884                                                         sin = (struct sockaddr_in *)addr;
5885                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5886                                                             &sin->sin_addr) != 0) {
5887                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5888                                                                 error = EINVAL;
5889                                                                 goto out_of_it;
5890                                                         }
5891                                                         break;
5892                                                 }
5893 #endif
5894 #ifdef INET6
5895                                         case AF_INET6:
5896                                                 {
5897                                                         struct sockaddr_in6 *sin6;
5898
5899                                                         sin6 = (struct sockaddr_in6 *)addr;
5900                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5901                                                             &sin6->sin6_addr) != 0) {
5902                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5903                                                                 error = EINVAL;
5904                                                                 goto out_of_it;
5905                                                         }
5906                                                         break;
5907                                                 }
5908 #endif
5909                                         default:
5910                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5911                                                 error = EINVAL;
5912                                                 goto out_of_it;
5913                                         }
5914                                 }
5915                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5916                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5917                                         error = EINVAL;
5918                                 }
5919                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5920                 out_of_it:
5921                                 SCTP_TCB_UNLOCK(stcb);
5922                         } else {
5923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5924                                 error = EINVAL;
5925                         }
5926                         break;
5927                 }
5928         case SCTP_BINDX_ADD_ADDR:
5929                 {
5930                         struct sctp_getaddresses *addrs;
5931                         struct thread *td;
5932
5933                         td = (struct thread *)p;
5934                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5935                             optsize);
5936 #ifdef INET
5937                         if (addrs->addr->sa_family == AF_INET) {
5938                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5940                                         error = EINVAL;
5941                                         break;
5942                                 }
5943                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5944                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5945                                         break;
5946                                 }
5947                         } else
5948 #endif
5949 #ifdef INET6
5950                         if (addrs->addr->sa_family == AF_INET6) {
5951                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5952                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5953                                         error = EINVAL;
5954                                         break;
5955                                 }
5956                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5957                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5958                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5959                                         break;
5960                                 }
5961                         } else
5962 #endif
5963                         {
5964                                 error = EAFNOSUPPORT;
5965                                 break;
5966                         }
5967                         sctp_bindx_add_address(so, inp, addrs->addr,
5968                             addrs->sget_assoc_id, vrf_id,
5969                             &error, p);
5970                         break;
5971                 }
5972         case SCTP_BINDX_REM_ADDR:
5973                 {
5974                         struct sctp_getaddresses *addrs;
5975                         struct thread *td;
5976
5977                         td = (struct thread *)p;
5978
5979                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5980 #ifdef INET
5981                         if (addrs->addr->sa_family == AF_INET) {
5982                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5983                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5984                                         error = EINVAL;
5985                                         break;
5986                                 }
5987                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5988                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5989                                         break;
5990                                 }
5991                         } else
5992 #endif
5993 #ifdef INET6
5994                         if (addrs->addr->sa_family == AF_INET6) {
5995                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5997                                         error = EINVAL;
5998                                         break;
5999                                 }
6000                                 if (td != NULL &&
6001                                     (error = prison_local_ip6(td->td_ucred,
6002                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6003                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6004                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6005                                         break;
6006                                 }
6007                         } else
6008 #endif
6009                         {
6010                                 error = EAFNOSUPPORT;
6011                                 break;
6012                         }
6013                         sctp_bindx_delete_address(inp, addrs->addr,
6014                             addrs->sget_assoc_id, vrf_id,
6015                             &error);
6016                         break;
6017                 }
6018         case SCTP_EVENT:
6019                 {
6020                         struct sctp_event *event;
6021                         uint32_t event_type;
6022
6023                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6024                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6025                         switch (event->se_type) {
6026                         case SCTP_ASSOC_CHANGE:
6027                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6028                                 break;
6029                         case SCTP_PEER_ADDR_CHANGE:
6030                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6031                                 break;
6032                         case SCTP_REMOTE_ERROR:
6033                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6034                                 break;
6035                         case SCTP_SEND_FAILED:
6036                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6037                                 break;
6038                         case SCTP_SHUTDOWN_EVENT:
6039                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6040                                 break;
6041                         case SCTP_ADAPTATION_INDICATION:
6042                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6043                                 break;
6044                         case SCTP_PARTIAL_DELIVERY_EVENT:
6045                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6046                                 break;
6047                         case SCTP_AUTHENTICATION_EVENT:
6048                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6049                                 break;
6050                         case SCTP_STREAM_RESET_EVENT:
6051                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6052                                 break;
6053                         case SCTP_SENDER_DRY_EVENT:
6054                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6055                                 break;
6056                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6057                                 event_type = 0;
6058                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6059                                 error = ENOTSUP;
6060                                 break;
6061                         case SCTP_ASSOC_RESET_EVENT:
6062                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6063                                 break;
6064                         case SCTP_STREAM_CHANGE_EVENT:
6065                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6066                                 break;
6067                         case SCTP_SEND_FAILED_EVENT:
6068                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6069                                 break;
6070                         default:
6071                                 event_type = 0;
6072                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6073                                 error = EINVAL;
6074                                 break;
6075                         }
6076                         if (event_type > 0) {
6077                                 if (stcb) {
6078                                         if (event->se_on) {
6079                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6080                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6081                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6082                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6083                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6084                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6085                                                         }
6086                                                 }
6087                                         } else {
6088                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6089                                         }
6090                                         SCTP_TCB_UNLOCK(stcb);
6091                                 } else {
6092                                         /*
6093                                          * We don't want to send up a storm
6094                                          * of events, so return an error for
6095                                          * sender dry events
6096                                          */
6097                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6098                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6099                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6100                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6101                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6102                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6103                                                 error = ENOTSUP;
6104                                                 break;
6105                                         }
6106                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6107                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6108                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6109                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6110                                                 SCTP_INP_WLOCK(inp);
6111                                                 if (event->se_on) {
6112                                                         sctp_feature_on(inp, event_type);
6113                                                 } else {
6114                                                         sctp_feature_off(inp, event_type);
6115                                                 }
6116                                                 SCTP_INP_WUNLOCK(inp);
6117                                         }
6118                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6119                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6120                                                 SCTP_INP_RLOCK(inp);
6121                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6122                                                         SCTP_TCB_LOCK(stcb);
6123                                                         if (event->se_on) {
6124                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6125                                                         } else {
6126                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6127                                                         }
6128                                                         SCTP_TCB_UNLOCK(stcb);
6129                                                 }
6130                                                 SCTP_INP_RUNLOCK(inp);
6131                                         }
6132                                 }
6133                         }
6134                         break;
6135                 }
6136         case SCTP_RECVRCVINFO:
6137                 {
6138                         int *onoff;
6139
6140                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6141                         SCTP_INP_WLOCK(inp);
6142                         if (*onoff != 0) {
6143                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6144                         } else {
6145                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6146                         }
6147                         SCTP_INP_WUNLOCK(inp);
6148                         break;
6149                 }
6150         case SCTP_RECVNXTINFO:
6151                 {
6152                         int *onoff;
6153
6154                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6155                         SCTP_INP_WLOCK(inp);
6156                         if (*onoff != 0) {
6157                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6158                         } else {
6159                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6160                         }
6161                         SCTP_INP_WUNLOCK(inp);
6162                         break;
6163                 }
6164         case SCTP_DEFAULT_SNDINFO:
6165                 {
6166                         struct sctp_sndinfo *info;
6167                         uint16_t policy;
6168
6169                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6170                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6171
6172                         if (stcb) {
6173                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6174                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6175                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6176                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6177                                         stcb->asoc.def_send.sinfo_flags |= policy;
6178                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6179                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6180                                 } else {
6181                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6182                                         error = EINVAL;
6183                                 }
6184                                 SCTP_TCB_UNLOCK(stcb);
6185                         } else {
6186                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6187                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6188                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6189                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6190                                         SCTP_INP_WLOCK(inp);
6191                                         inp->def_send.sinfo_stream = info->snd_sid;
6192                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6193                                         inp->def_send.sinfo_flags = info->snd_flags;
6194                                         inp->def_send.sinfo_flags |= policy;
6195                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6196                                         inp->def_send.sinfo_context = info->snd_context;
6197                                         SCTP_INP_WUNLOCK(inp);
6198                                 }
6199                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6200                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6201                                         SCTP_INP_RLOCK(inp);
6202                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6203                                                 SCTP_TCB_LOCK(stcb);
6204                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6205                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6206                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6207                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6208                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6209                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6210                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6211                                                 }
6212                                                 SCTP_TCB_UNLOCK(stcb);
6213                                         }
6214                                         SCTP_INP_RUNLOCK(inp);
6215                                 }
6216                         }
6217                         break;
6218                 }
6219         case SCTP_DEFAULT_PRINFO:
6220                 {
6221                         struct sctp_default_prinfo *info;
6222
6223                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6224                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6225
6226                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6227                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6228                                 error = EINVAL;
6229                                 break;
6230                         }
6231                         if (stcb) {
6232                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6233                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6234                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6235                                 SCTP_TCB_UNLOCK(stcb);
6236                         } else {
6237                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6238                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6239                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6240                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6241                                         SCTP_INP_WLOCK(inp);
6242                                         inp->def_send.sinfo_flags &= 0xfff0;
6243                                         inp->def_send.sinfo_flags |= info->pr_policy;
6244                                         inp->def_send.sinfo_timetolive = info->pr_value;
6245                                         SCTP_INP_WUNLOCK(inp);
6246                                 }
6247                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6248                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6249                                         SCTP_INP_RLOCK(inp);
6250                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6251                                                 SCTP_TCB_LOCK(stcb);
6252                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6253                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6254                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6255                                                 SCTP_TCB_UNLOCK(stcb);
6256                                         }
6257                                         SCTP_INP_RUNLOCK(inp);
6258                                 }
6259                         }
6260                         break;
6261                 }
6262         case SCTP_PEER_ADDR_THLDS:
6263                 /* Applies to the specific association */
6264                 {
6265                         struct sctp_paddrthlds *thlds;
6266                         struct sctp_nets *net;
6267                         struct sockaddr *addr;
6268
6269 #if defined(INET) && defined(INET6)
6270                         struct sockaddr_in sin_store;
6271
6272 #endif
6273
6274                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6275                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6276
6277 #if defined(INET) && defined(INET6)
6278                         if (thlds->spt_address.ss_family == AF_INET6) {
6279                                 struct sockaddr_in6 *sin6;
6280
6281                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6282                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6283                                         in6_sin6_2_sin(&sin_store, sin6);
6284                                         addr = (struct sockaddr *)&sin_store;
6285                                 } else {
6286                                         addr = (struct sockaddr *)&thlds->spt_address;
6287                                 }
6288                         } else {
6289                                 addr = (struct sockaddr *)&thlds->spt_address;
6290                         }
6291 #else
6292                         addr = (struct sockaddr *)&thlds->spt_address;
6293 #endif
6294                         if (stcb != NULL) {
6295                                 net = sctp_findnet(stcb, addr);
6296                         } else {
6297                                 /*
6298                                  * We increment here since
6299                                  * sctp_findassociation_ep_addr() wil do a
6300                                  * decrement if it finds the stcb as long as
6301                                  * the locked tcb (last argument) is NOT a
6302                                  * TCB.. aka NULL.
6303                                  */
6304                                 net = NULL;
6305                                 SCTP_INP_INCR_REF(inp);
6306                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6307                                     &net, NULL, NULL);
6308                                 if (stcb == NULL) {
6309                                         SCTP_INP_DECR_REF(inp);
6310                                 }
6311                         }
6312                         if ((stcb != NULL) && (net == NULL)) {
6313 #ifdef INET
6314                                 if (addr->sa_family == AF_INET) {
6315
6316                                         struct sockaddr_in *sin;
6317
6318                                         sin = (struct sockaddr_in *)addr;
6319                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6320                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6321                                                 SCTP_TCB_UNLOCK(stcb);
6322                                                 error = EINVAL;
6323                                                 break;
6324                                         }
6325                                 } else
6326 #endif
6327 #ifdef INET6
6328                                 if (addr->sa_family == AF_INET6) {
6329                                         struct sockaddr_in6 *sin6;
6330
6331                                         sin6 = (struct sockaddr_in6 *)addr;
6332                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6333                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6334                                                 SCTP_TCB_UNLOCK(stcb);
6335                                                 error = EINVAL;
6336                                                 break;
6337                                         }
6338                                 } else
6339 #endif
6340                                 {
6341                                         error = EAFNOSUPPORT;
6342                                         SCTP_TCB_UNLOCK(stcb);
6343                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6344                                         break;
6345                                 }
6346                         }
6347                         if (stcb != NULL) {
6348                                 if (net != NULL) {
6349                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6350                                         net->pf_threshold = thlds->spt_pathpfthld;
6351                                         if (net->dest_state & SCTP_ADDR_PF) {
6352                                                 if ((net->error_count > net->failure_threshold) ||
6353                                                     (net->error_count <= net->pf_threshold)) {
6354                                                         net->dest_state &= ~SCTP_ADDR_PF;
6355                                                 }
6356                                         } else {
6357                                                 if ((net->error_count > net->pf_threshold) &&
6358                                                     (net->error_count <= net->failure_threshold)) {
6359                                                         net->dest_state |= SCTP_ADDR_PF;
6360                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6361                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6362                                                             stcb->sctp_ep, stcb, net,
6363                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6364                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6365                                                 }
6366                                         }
6367                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6368                                                 if (net->error_count > net->failure_threshold) {
6369                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6370                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6371                                                 }
6372                                         } else {
6373                                                 if (net->error_count <= net->failure_threshold) {
6374                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6375                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6376                                                 }
6377                                         }
6378                                 } else {
6379                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6380                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6381                                                 net->pf_threshold = thlds->spt_pathpfthld;
6382                                                 if (net->dest_state & SCTP_ADDR_PF) {
6383                                                         if ((net->error_count > net->failure_threshold) ||
6384                                                             (net->error_count <= net->pf_threshold)) {
6385                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6386                                                         }
6387                                                 } else {
6388                                                         if ((net->error_count > net->pf_threshold) &&
6389                                                             (net->error_count <= net->failure_threshold)) {
6390                                                                 net->dest_state |= SCTP_ADDR_PF;
6391                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6392                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6393                                                                     stcb->sctp_ep, stcb, net,
6394                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6395                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6396                                                         }
6397                                                 }
6398                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6399                                                         if (net->error_count > net->failure_threshold) {
6400                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6401                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6402                                                         }
6403                                                 } else {
6404                                                         if (net->error_count <= net->failure_threshold) {
6405                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6406                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6407                                                         }
6408                                                 }
6409                                         }
6410                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6411                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6412                                 }
6413                                 SCTP_TCB_UNLOCK(stcb);
6414                         } else {
6415                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6416                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6417                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6418                                         SCTP_INP_WLOCK(inp);
6419                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6420                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6421                                         SCTP_INP_WUNLOCK(inp);
6422                                 } else {
6423                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6424                                         error = EINVAL;
6425                                 }
6426                         }
6427                         break;
6428                 }
6429         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6430                 {
6431                         struct sctp_udpencaps *encaps;
6432                         struct sctp_nets *net;
6433                         struct sockaddr *addr;
6434
6435 #if defined(INET) && defined(INET6)
6436                         struct sockaddr_in sin_store;
6437
6438 #endif
6439
6440                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6441                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6442
6443 #if defined(INET) && defined(INET6)
6444                         if (encaps->sue_address.ss_family == AF_INET6) {
6445                                 struct sockaddr_in6 *sin6;
6446
6447                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6448                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6449                                         in6_sin6_2_sin(&sin_store, sin6);
6450                                         addr = (struct sockaddr *)&sin_store;
6451                                 } else {
6452                                         addr = (struct sockaddr *)&encaps->sue_address;
6453                                 }
6454                         } else {
6455                                 addr = (struct sockaddr *)&encaps->sue_address;
6456                         }
6457 #else
6458                         addr = (struct sockaddr *)&encaps->sue_address;
6459 #endif
6460                         if (stcb != NULL) {
6461                                 net = sctp_findnet(stcb, addr);
6462                         } else {
6463                                 /*
6464                                  * We increment here since
6465                                  * sctp_findassociation_ep_addr() wil do a
6466                                  * decrement if it finds the stcb as long as
6467                                  * the locked tcb (last argument) is NOT a
6468                                  * TCB.. aka NULL.
6469                                  */
6470                                 net = NULL;
6471                                 SCTP_INP_INCR_REF(inp);
6472                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6473                                 if (stcb == NULL) {
6474                                         SCTP_INP_DECR_REF(inp);
6475                                 }
6476                         }
6477                         if ((stcb != NULL) && (net == NULL)) {
6478 #ifdef INET
6479                                 if (addr->sa_family == AF_INET) {
6480
6481                                         struct sockaddr_in *sin;
6482
6483                                         sin = (struct sockaddr_in *)addr;
6484                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6485                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6486                                                 SCTP_TCB_UNLOCK(stcb);
6487                                                 error = EINVAL;
6488                                                 break;
6489                                         }
6490                                 } else
6491 #endif
6492 #ifdef INET6
6493                                 if (addr->sa_family == AF_INET6) {
6494                                         struct sockaddr_in6 *sin6;
6495
6496                                         sin6 = (struct sockaddr_in6 *)addr;
6497                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6498                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6499                                                 SCTP_TCB_UNLOCK(stcb);
6500                                                 error = EINVAL;
6501                                                 break;
6502                                         }
6503                                 } else
6504 #endif
6505                                 {
6506                                         error = EAFNOSUPPORT;
6507                                         SCTP_TCB_UNLOCK(stcb);
6508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6509                                         break;
6510                                 }
6511                         }
6512                         if (stcb != NULL) {
6513                                 if (net != NULL) {
6514                                         net->port = encaps->sue_port;
6515                                 } else {
6516                                         stcb->asoc.port = encaps->sue_port;
6517                                 }
6518                                 SCTP_TCB_UNLOCK(stcb);
6519                         } else {
6520                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6521                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6522                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6523                                         SCTP_INP_WLOCK(inp);
6524                                         inp->sctp_ep.port = encaps->sue_port;
6525                                         SCTP_INP_WUNLOCK(inp);
6526                                 } else {
6527                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6528                                         error = EINVAL;
6529                                 }
6530                         }
6531                         break;
6532                 }
6533         case SCTP_ECN_SUPPORTED:
6534                 {
6535                         struct sctp_assoc_value *av;
6536
6537                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6538                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6539
6540                         if (stcb) {
6541                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6542                                 error = EINVAL;
6543                                 SCTP_TCB_UNLOCK(stcb);
6544                         } else {
6545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6547                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6548                                         SCTP_INP_WLOCK(inp);
6549                                         if (av->assoc_value == 0) {
6550                                                 inp->ecn_supported = 0;
6551                                         } else {
6552                                                 inp->ecn_supported = 1;
6553                                         }
6554                                         SCTP_INP_WUNLOCK(inp);
6555                                 } else {
6556                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6557                                         error = EINVAL;
6558                                 }
6559                         }
6560                         break;
6561                 }
6562         case SCTP_PR_SUPPORTED:
6563                 {
6564                         struct sctp_assoc_value *av;
6565
6566                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6567                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6568
6569                         if (stcb) {
6570                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6571                                 error = EINVAL;
6572                                 SCTP_TCB_UNLOCK(stcb);
6573                         } else {
6574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6576                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6577                                         SCTP_INP_WLOCK(inp);
6578                                         if (av->assoc_value == 0) {
6579                                                 inp->prsctp_supported = 0;
6580                                         } else {
6581                                                 inp->prsctp_supported = 1;
6582                                         }
6583                                         SCTP_INP_WUNLOCK(inp);
6584                                 } else {
6585                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6586                                         error = EINVAL;
6587                                 }
6588                         }
6589                         break;
6590                 }
6591         case SCTP_AUTH_SUPPORTED:
6592                 {
6593                         struct sctp_assoc_value *av;
6594
6595                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6596                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6597
6598                         if (stcb) {
6599                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6600                                 error = EINVAL;
6601                                 SCTP_TCB_UNLOCK(stcb);
6602                         } else {
6603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6604                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6605                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6606                                         if ((av->assoc_value == 0) &&
6607                                             (inp->asconf_supported == 1)) {
6608                                                 /*
6609                                                  * AUTH is required for
6610                                                  * ASCONF
6611                                                  */
6612                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6613                                                 error = EINVAL;
6614                                         } else {
6615                                                 SCTP_INP_WLOCK(inp);
6616                                                 if (av->assoc_value == 0) {
6617                                                         inp->auth_supported = 0;
6618                                                 } else {
6619                                                         inp->auth_supported = 1;
6620                                                 }
6621                                                 SCTP_INP_WUNLOCK(inp);
6622                                         }
6623                                 } else {
6624                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6625                                         error = EINVAL;
6626                                 }
6627                         }
6628                         break;
6629                 }
6630         case SCTP_ASCONF_SUPPORTED:
6631                 {
6632                         struct sctp_assoc_value *av;
6633
6634                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6635                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6636
6637                         if (stcb) {
6638                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6639                                 error = EINVAL;
6640                                 SCTP_TCB_UNLOCK(stcb);
6641                         } else {
6642                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6643                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6644                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6645                                         if ((av->assoc_value != 0) &&
6646                                             (inp->auth_supported == 0)) {
6647                                                 /*
6648                                                  * AUTH is required for
6649                                                  * ASCONF
6650                                                  */
6651                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6652                                                 error = EINVAL;
6653                                         } else {
6654                                                 SCTP_INP_WLOCK(inp);
6655                                                 if (av->assoc_value == 0) {
6656                                                         inp->asconf_supported = 0;
6657                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6658                                                             inp->sctp_ep.local_auth_chunks);
6659                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6660                                                             inp->sctp_ep.local_auth_chunks);
6661                                                 } else {
6662                                                         inp->asconf_supported = 1;
6663                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6664                                                             inp->sctp_ep.local_auth_chunks);
6665                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6666                                                             inp->sctp_ep.local_auth_chunks);
6667                                                 }
6668                                                 SCTP_INP_WUNLOCK(inp);
6669                                         }
6670                                 } else {
6671                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6672                                         error = EINVAL;
6673                                 }
6674                         }
6675                         break;
6676                 }
6677         case SCTP_RECONFIG_SUPPORTED:
6678                 {
6679                         struct sctp_assoc_value *av;
6680
6681                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6682                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6683
6684                         if (stcb) {
6685                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6686                                 error = EINVAL;
6687                                 SCTP_TCB_UNLOCK(stcb);
6688                         } else {
6689                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6690                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6691                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6692                                         SCTP_INP_WLOCK(inp);
6693                                         if (av->assoc_value == 0) {
6694                                                 inp->reconfig_supported = 0;
6695                                         } else {
6696                                                 inp->reconfig_supported = 1;
6697                                         }
6698                                         SCTP_INP_WUNLOCK(inp);
6699                                 } else {
6700                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6701                                         error = EINVAL;
6702                                 }
6703                         }
6704                         break;
6705                 }
6706         case SCTP_NRSACK_SUPPORTED:
6707                 {
6708                         struct sctp_assoc_value *av;
6709
6710                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6711                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6712
6713                         if (stcb) {
6714                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6715                                 error = EINVAL;
6716                                 SCTP_TCB_UNLOCK(stcb);
6717                         } else {
6718                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6719                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6720                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6721                                         SCTP_INP_WLOCK(inp);
6722                                         if (av->assoc_value == 0) {
6723                                                 inp->nrsack_supported = 0;
6724                                         } else {
6725                                                 inp->nrsack_supported = 1;
6726                                         }
6727                                         SCTP_INP_WUNLOCK(inp);
6728                                 } else {
6729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6730                                         error = EINVAL;
6731                                 }
6732                         }
6733                         break;
6734                 }
6735         case SCTP_PKTDROP_SUPPORTED:
6736                 {
6737                         struct sctp_assoc_value *av;
6738
6739                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6740                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6741
6742                         if (stcb) {
6743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6744                                 error = EINVAL;
6745                                 SCTP_TCB_UNLOCK(stcb);
6746                         } else {
6747                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6748                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6749                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6750                                         SCTP_INP_WLOCK(inp);
6751                                         if (av->assoc_value == 0) {
6752                                                 inp->pktdrop_supported = 0;
6753                                         } else {
6754                                                 inp->pktdrop_supported = 1;
6755                                         }
6756                                         SCTP_INP_WUNLOCK(inp);
6757                                 } else {
6758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6759                                         error = EINVAL;
6760                                 }
6761                         }
6762                         break;
6763                 }
6764         case SCTP_MAX_CWND:
6765                 {
6766                         struct sctp_assoc_value *av;
6767                         struct sctp_nets *net;
6768
6769                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6770                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6771
6772                         if (stcb) {
6773                                 stcb->asoc.max_cwnd = av->assoc_value;
6774                                 if (stcb->asoc.max_cwnd > 0) {
6775                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6776                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6777                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6778                                                         net->cwnd = stcb->asoc.max_cwnd;
6779                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6780                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6781                                                         }
6782                                                 }
6783                                         }
6784                                 }
6785                                 SCTP_TCB_UNLOCK(stcb);
6786                         } else {
6787                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6788                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6789                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6790                                         SCTP_INP_WLOCK(inp);
6791                                         inp->max_cwnd = av->assoc_value;
6792                                         SCTP_INP_WUNLOCK(inp);
6793                                 } else {
6794                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6795                                         error = EINVAL;
6796                                 }
6797                         }
6798                         break;
6799                 }
6800         default:
6801                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6802                 error = ENOPROTOOPT;
6803                 break;
6804         }                       /* end switch (opt) */
6805         return (error);
6806 }
6807
6808 int
6809 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6810 {
6811         void *optval = NULL;
6812         size_t optsize = 0;
6813         void *p;
6814         int error = 0;
6815         struct sctp_inpcb *inp;
6816
6817         if ((sopt->sopt_level == SOL_SOCKET) &&
6818             (sopt->sopt_name == SO_SETFIB)) {
6819                 inp = (struct sctp_inpcb *)so->so_pcb;
6820                 if (inp == NULL) {
6821                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6822                         return (EINVAL);
6823                 }
6824                 SCTP_INP_WLOCK(inp);
6825                 inp->fibnum = so->so_fibnum;
6826                 SCTP_INP_WUNLOCK(inp);
6827                 return (0);
6828         }
6829         if (sopt->sopt_level != IPPROTO_SCTP) {
6830                 /* wrong proto level... send back up to IP */
6831 #ifdef INET6
6832                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6833                         error = ip6_ctloutput(so, sopt);
6834 #endif                          /* INET6 */
6835 #if defined(INET) && defined(INET6)
6836                 else
6837 #endif
6838 #ifdef INET
6839                         error = ip_ctloutput(so, sopt);
6840 #endif
6841                 return (error);
6842         }
6843         optsize = sopt->sopt_valsize;
6844         if (optsize) {
6845                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6846                 if (optval == NULL) {
6847                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6848                         return (ENOBUFS);
6849                 }
6850                 error = sooptcopyin(sopt, optval, optsize, optsize);
6851                 if (error) {
6852                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6853                         goto out;
6854                 }
6855         }
6856         p = (void *)sopt->sopt_td;
6857         if (sopt->sopt_dir == SOPT_SET) {
6858                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6859         } else if (sopt->sopt_dir == SOPT_GET) {
6860                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6861         } else {
6862                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6863                 error = EINVAL;
6864         }
6865         if ((error == 0) && (optval != NULL)) {
6866                 error = sooptcopyout(sopt, optval, optsize);
6867                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6868         } else if (optval != NULL) {
6869                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6870         }
6871 out:
6872         return (error);
6873 }
6874
6875 #ifdef INET
6876 static int
6877 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6878 {
6879         int error = 0;
6880         int create_lock_on = 0;
6881         uint32_t vrf_id;
6882         struct sctp_inpcb *inp;
6883         struct sctp_tcb *stcb = NULL;
6884
6885         inp = (struct sctp_inpcb *)so->so_pcb;
6886         if (inp == NULL) {
6887                 /* I made the same as TCP since we are not setup? */
6888                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6889                 return (ECONNRESET);
6890         }
6891         if (addr == NULL) {
6892                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6893                 return EINVAL;
6894         }
6895         switch (addr->sa_family) {
6896 #ifdef INET6
6897         case AF_INET6:
6898                 {
6899                         struct sockaddr_in6 *sin6p;
6900
6901                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6903                                 return (EINVAL);
6904                         }
6905                         sin6p = (struct sockaddr_in6 *)addr;
6906                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6908                                 return (error);
6909                         }
6910                         break;
6911                 }
6912 #endif
6913 #ifdef INET
6914         case AF_INET:
6915                 {
6916                         struct sockaddr_in *sinp;
6917
6918                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6919                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6920                                 return (EINVAL);
6921                         }
6922                         sinp = (struct sockaddr_in *)addr;
6923                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6924                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6925                                 return (error);
6926                         }
6927                         break;
6928                 }
6929 #endif
6930         default:
6931                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6932                 return (EAFNOSUPPORT);
6933         }
6934         SCTP_INP_INCR_REF(inp);
6935         SCTP_ASOC_CREATE_LOCK(inp);
6936         create_lock_on = 1;
6937
6938
6939         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6940             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6941                 /* Should I really unlock ? */
6942                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6943                 error = EFAULT;
6944                 goto out_now;
6945         }
6946 #ifdef INET6
6947         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6948             (addr->sa_family == AF_INET6)) {
6949                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6950                 error = EINVAL;
6951                 goto out_now;
6952         }
6953 #endif
6954         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6955             SCTP_PCB_FLAGS_UNBOUND) {
6956                 /* Bind a ephemeral port */
6957                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6958                 if (error) {
6959                         goto out_now;
6960                 }
6961         }
6962         /* Now do we connect? */
6963         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6964             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6965                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6966                 error = EINVAL;
6967                 goto out_now;
6968         }
6969         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6970             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6971                 /* We are already connected AND the TCP model */
6972                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6973                 error = EADDRINUSE;
6974                 goto out_now;
6975         }
6976         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6977                 SCTP_INP_RLOCK(inp);
6978                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6979                 SCTP_INP_RUNLOCK(inp);
6980         } else {
6981                 /*
6982                  * We increment here since sctp_findassociation_ep_addr()
6983                  * will do a decrement if it finds the stcb as long as the
6984                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6985                  */
6986                 SCTP_INP_INCR_REF(inp);
6987                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6988                 if (stcb == NULL) {
6989                         SCTP_INP_DECR_REF(inp);
6990                 } else {
6991                         SCTP_TCB_UNLOCK(stcb);
6992                 }
6993         }
6994         if (stcb != NULL) {
6995                 /* Already have or am bring up an association */
6996                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6997                 error = EALREADY;
6998                 goto out_now;
6999         }
7000         vrf_id = inp->def_vrf_id;
7001         /* We are GOOD to go */
7002         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, inp->sctp_ep.pre_open_stream_count, p);
7003         if (stcb == NULL) {
7004                 /* Gak! no memory */
7005                 goto out_now;
7006         }
7007         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7008                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7009                 /* Set the connected flag so we can queue data */
7010                 soisconnecting(so);
7011         }
7012         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
7013         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7014
7015         /* initialize authentication parameters for the assoc */
7016         sctp_initialize_auth_params(inp, stcb);
7017
7018         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7019         SCTP_TCB_UNLOCK(stcb);
7020 out_now:
7021         if (create_lock_on) {
7022                 SCTP_ASOC_CREATE_UNLOCK(inp);
7023         }
7024         SCTP_INP_DECR_REF(inp);
7025         return (error);
7026 }
7027
7028 #endif
7029
7030 int
7031 sctp_listen(struct socket *so, int backlog, struct thread *p)
7032 {
7033         /*
7034          * Note this module depends on the protocol processing being called
7035          * AFTER any socket level flags and backlog are applied to the
7036          * socket. The traditional way that the socket flags are applied is
7037          * AFTER protocol processing. We have made a change to the
7038          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7039          * place if the socket API for SCTP is to work properly.
7040          */
7041
7042         int error = 0;
7043         struct sctp_inpcb *inp;
7044
7045         inp = (struct sctp_inpcb *)so->so_pcb;
7046         if (inp == NULL) {
7047                 /* I made the same as TCP since we are not setup? */
7048                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7049                 return (ECONNRESET);
7050         }
7051         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7052                 /* See if we have a listener */
7053                 struct sctp_inpcb *tinp;
7054                 union sctp_sockstore store;
7055
7056                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7057                         /* not bound all */
7058                         struct sctp_laddr *laddr;
7059
7060                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7061                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7062                                 switch (store.sa.sa_family) {
7063 #ifdef INET
7064                                 case AF_INET:
7065                                         store.sin.sin_port = inp->sctp_lport;
7066                                         break;
7067 #endif
7068 #ifdef INET6
7069                                 case AF_INET6:
7070                                         store.sin6.sin6_port = inp->sctp_lport;
7071                                         break;
7072 #endif
7073                                 default:
7074                                         break;
7075                                 }
7076                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7077                                 if (tinp && (tinp != inp) &&
7078                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7079                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7080                                     (tinp->sctp_socket->so_qlimit)) {
7081                                         /*
7082                                          * we have a listener already and
7083                                          * its not this inp.
7084                                          */
7085                                         SCTP_INP_DECR_REF(tinp);
7086                                         return (EADDRINUSE);
7087                                 } else if (tinp) {
7088                                         SCTP_INP_DECR_REF(tinp);
7089                                 }
7090                         }
7091                 } else {
7092                         /* Setup a local addr bound all */
7093                         memset(&store, 0, sizeof(store));
7094 #ifdef INET6
7095                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7096                                 store.sa.sa_family = AF_INET6;
7097                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7098                         }
7099 #endif
7100 #ifdef INET
7101                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7102                                 store.sa.sa_family = AF_INET;
7103                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7104                         }
7105 #endif
7106                         switch (store.sa.sa_family) {
7107 #ifdef INET
7108                         case AF_INET:
7109                                 store.sin.sin_port = inp->sctp_lport;
7110                                 break;
7111 #endif
7112 #ifdef INET6
7113                         case AF_INET6:
7114                                 store.sin6.sin6_port = inp->sctp_lport;
7115                                 break;
7116 #endif
7117                         default:
7118                                 break;
7119                         }
7120                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7121                         if (tinp && (tinp != inp) &&
7122                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7123                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7124                             (tinp->sctp_socket->so_qlimit)) {
7125                                 /*
7126                                  * we have a listener already and its not
7127                                  * this inp.
7128                                  */
7129                                 SCTP_INP_DECR_REF(tinp);
7130                                 return (EADDRINUSE);
7131                         } else if (tinp) {
7132                                 SCTP_INP_DECR_REF(tinp);
7133                         }
7134                 }
7135         }
7136         SCTP_INP_RLOCK(inp);
7137 #ifdef SCTP_LOCK_LOGGING
7138         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7139                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7140         }
7141 #endif
7142         SOCK_LOCK(so);
7143         error = solisten_proto_check(so);
7144         SOCK_UNLOCK(so);
7145         if (error) {
7146                 SCTP_INP_RUNLOCK(inp);
7147                 return (error);
7148         }
7149         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7150             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7151                 /*
7152                  * The unlucky case - We are in the tcp pool with this guy.
7153                  * - Someone else is in the main inp slot. - We must move
7154                  * this guy (the listener) to the main slot - We must then
7155                  * move the guy that was listener to the TCP Pool.
7156                  */
7157                 if (sctp_swap_inpcb_for_listen(inp)) {
7158                         SCTP_INP_RUNLOCK(inp);
7159                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7160                         return (EADDRINUSE);
7161                 }
7162         }
7163         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7164             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7165                 /* We are already connected AND the TCP model */
7166                 SCTP_INP_RUNLOCK(inp);
7167                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7168                 return (EADDRINUSE);
7169         }
7170         SCTP_INP_RUNLOCK(inp);
7171         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7172                 /* We must do a bind. */
7173                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7174                         /* bind error, probably perm */
7175                         return (error);
7176                 }
7177         }
7178         SOCK_LOCK(so);
7179         /* It appears for 7.0 and on, we must always call this. */
7180         solisten_proto(so, backlog);
7181         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7182                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7183                 so->so_options &= ~SO_ACCEPTCONN;
7184         }
7185         if (backlog == 0) {
7186                 /* turning off listen */
7187                 so->so_options &= ~SO_ACCEPTCONN;
7188         }
7189         SOCK_UNLOCK(so);
7190         return (error);
7191 }
7192
7193 static int sctp_defered_wakeup_cnt = 0;
7194
7195 int
7196 sctp_accept(struct socket *so, struct sockaddr **addr)
7197 {
7198         struct sctp_tcb *stcb;
7199         struct sctp_inpcb *inp;
7200         union sctp_sockstore store;
7201
7202 #ifdef INET6
7203         int error;
7204
7205 #endif
7206         inp = (struct sctp_inpcb *)so->so_pcb;
7207
7208         if (inp == NULL) {
7209                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7210                 return (ECONNRESET);
7211         }
7212         SCTP_INP_RLOCK(inp);
7213         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7214                 SCTP_INP_RUNLOCK(inp);
7215                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7216                 return (EOPNOTSUPP);
7217         }
7218         if (so->so_state & SS_ISDISCONNECTED) {
7219                 SCTP_INP_RUNLOCK(inp);
7220                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7221                 return (ECONNABORTED);
7222         }
7223         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7224         if (stcb == NULL) {
7225                 SCTP_INP_RUNLOCK(inp);
7226                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7227                 return (ECONNRESET);
7228         }
7229         SCTP_TCB_LOCK(stcb);
7230         SCTP_INP_RUNLOCK(inp);
7231         store = stcb->asoc.primary_destination->ro._l_addr;
7232         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7233         SCTP_TCB_UNLOCK(stcb);
7234         switch (store.sa.sa_family) {
7235 #ifdef INET
7236         case AF_INET:
7237                 {
7238                         struct sockaddr_in *sin;
7239
7240                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7241                         if (sin == NULL)
7242                                 return (ENOMEM);
7243                         sin->sin_family = AF_INET;
7244                         sin->sin_len = sizeof(*sin);
7245                         sin->sin_port = store.sin.sin_port;
7246                         sin->sin_addr = store.sin.sin_addr;
7247                         *addr = (struct sockaddr *)sin;
7248                         break;
7249                 }
7250 #endif
7251 #ifdef INET6
7252         case AF_INET6:
7253                 {
7254                         struct sockaddr_in6 *sin6;
7255
7256                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7257                         if (sin6 == NULL)
7258                                 return (ENOMEM);
7259                         sin6->sin6_family = AF_INET6;
7260                         sin6->sin6_len = sizeof(*sin6);
7261                         sin6->sin6_port = store.sin6.sin6_port;
7262                         sin6->sin6_addr = store.sin6.sin6_addr;
7263                         if ((error = sa6_recoverscope(sin6)) != 0) {
7264                                 SCTP_FREE_SONAME(sin6);
7265                                 return (error);
7266                         }
7267                         *addr = (struct sockaddr *)sin6;
7268                         break;
7269                 }
7270 #endif
7271         default:
7272                 /* TSNH */
7273                 break;
7274         }
7275         /* Wake any delayed sleep action */
7276         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7277                 SCTP_INP_WLOCK(inp);
7278                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7279                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7280                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7281                         SCTP_INP_WUNLOCK(inp);
7282                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7283                         if (sowriteable(inp->sctp_socket)) {
7284                                 sowwakeup_locked(inp->sctp_socket);
7285                         } else {
7286                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7287                         }
7288                         SCTP_INP_WLOCK(inp);
7289                 }
7290                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7291                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7292                         SCTP_INP_WUNLOCK(inp);
7293                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7294                         if (soreadable(inp->sctp_socket)) {
7295                                 sctp_defered_wakeup_cnt++;
7296                                 sorwakeup_locked(inp->sctp_socket);
7297                         } else {
7298                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7299                         }
7300                         SCTP_INP_WLOCK(inp);
7301                 }
7302                 SCTP_INP_WUNLOCK(inp);
7303         }
7304         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7305                 SCTP_TCB_LOCK(stcb);
7306                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7307                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7308         }
7309         return (0);
7310 }
7311
7312 #ifdef INET
7313 int
7314 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7315 {
7316         struct sockaddr_in *sin;
7317         uint32_t vrf_id;
7318         struct sctp_inpcb *inp;
7319         struct sctp_ifa *sctp_ifa;
7320
7321         /*
7322          * Do the malloc first in case it blocks.
7323          */
7324         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7325         if (sin == NULL)
7326                 return (ENOMEM);
7327         sin->sin_family = AF_INET;
7328         sin->sin_len = sizeof(*sin);
7329         inp = (struct sctp_inpcb *)so->so_pcb;
7330         if (!inp) {
7331                 SCTP_FREE_SONAME(sin);
7332                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7333                 return (ECONNRESET);
7334         }
7335         SCTP_INP_RLOCK(inp);
7336         sin->sin_port = inp->sctp_lport;
7337         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7338                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7339                         struct sctp_tcb *stcb;
7340                         struct sockaddr_in *sin_a;
7341                         struct sctp_nets *net;
7342                         int fnd;
7343
7344                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7345                         if (stcb == NULL) {
7346                                 goto notConn;
7347                         }
7348                         fnd = 0;
7349                         sin_a = NULL;
7350                         SCTP_TCB_LOCK(stcb);
7351                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7352                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7353                                 if (sin_a == NULL)
7354                                         /* this will make coverity happy */
7355                                         continue;
7356
7357                                 if (sin_a->sin_family == AF_INET) {
7358                                         fnd = 1;
7359                                         break;
7360                                 }
7361                         }
7362                         if ((!fnd) || (sin_a == NULL)) {
7363                                 /* punt */
7364                                 SCTP_TCB_UNLOCK(stcb);
7365                                 goto notConn;
7366                         }
7367                         vrf_id = inp->def_vrf_id;
7368                         sctp_ifa = sctp_source_address_selection(inp,
7369                             stcb,
7370                             (sctp_route_t *) & net->ro,
7371                             net, 0, vrf_id);
7372                         if (sctp_ifa) {
7373                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7374                                 sctp_free_ifa(sctp_ifa);
7375                         }
7376                         SCTP_TCB_UNLOCK(stcb);
7377                 } else {
7378                         /* For the bound all case you get back 0 */
7379         notConn:
7380                         sin->sin_addr.s_addr = 0;
7381                 }
7382
7383         } else {
7384                 /* Take the first IPv4 address in the list */
7385                 struct sctp_laddr *laddr;
7386                 int fnd = 0;
7387
7388                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7389                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7390                                 struct sockaddr_in *sin_a;
7391
7392                                 sin_a = &laddr->ifa->address.sin;
7393                                 sin->sin_addr = sin_a->sin_addr;
7394                                 fnd = 1;
7395                                 break;
7396                         }
7397                 }
7398                 if (!fnd) {
7399                         SCTP_FREE_SONAME(sin);
7400                         SCTP_INP_RUNLOCK(inp);
7401                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7402                         return (ENOENT);
7403                 }
7404         }
7405         SCTP_INP_RUNLOCK(inp);
7406         (*addr) = (struct sockaddr *)sin;
7407         return (0);
7408 }
7409
7410 int
7411 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7412 {
7413         struct sockaddr_in *sin;
7414         int fnd;
7415         struct sockaddr_in *sin_a;
7416         struct sctp_inpcb *inp;
7417         struct sctp_tcb *stcb;
7418         struct sctp_nets *net;
7419
7420         /* Do the malloc first in case it blocks. */
7421         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7422         if (sin == NULL)
7423                 return (ENOMEM);
7424         sin->sin_family = AF_INET;
7425         sin->sin_len = sizeof(*sin);
7426
7427         inp = (struct sctp_inpcb *)so->so_pcb;
7428         if ((inp == NULL) ||
7429             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7430                 /* UDP type and listeners will drop out here */
7431                 SCTP_FREE_SONAME(sin);
7432                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7433                 return (ENOTCONN);
7434         }
7435         SCTP_INP_RLOCK(inp);
7436         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7437         if (stcb) {
7438                 SCTP_TCB_LOCK(stcb);
7439         }
7440         SCTP_INP_RUNLOCK(inp);
7441         if (stcb == NULL) {
7442                 SCTP_FREE_SONAME(sin);
7443                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7444                 return (ECONNRESET);
7445         }
7446         fnd = 0;
7447         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7448                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7449                 if (sin_a->sin_family == AF_INET) {
7450                         fnd = 1;
7451                         sin->sin_port = stcb->rport;
7452                         sin->sin_addr = sin_a->sin_addr;
7453                         break;
7454                 }
7455         }
7456         SCTP_TCB_UNLOCK(stcb);
7457         if (!fnd) {
7458                 /* No IPv4 address */
7459                 SCTP_FREE_SONAME(sin);
7460                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7461                 return (ENOENT);
7462         }
7463         (*addr) = (struct sockaddr *)sin;
7464         return (0);
7465 }
7466
7467 struct pr_usrreqs sctp_usrreqs = {
7468         .pru_abort = sctp_abort,
7469         .pru_accept = sctp_accept,
7470         .pru_attach = sctp_attach,
7471         .pru_bind = sctp_bind,
7472         .pru_connect = sctp_connect,
7473         .pru_control = in_control,
7474         .pru_close = sctp_close,
7475         .pru_detach = sctp_close,
7476         .pru_sopoll = sopoll_generic,
7477         .pru_flush = sctp_flush,
7478         .pru_disconnect = sctp_disconnect,
7479         .pru_listen = sctp_listen,
7480         .pru_peeraddr = sctp_peeraddr,
7481         .pru_send = sctp_sendm,
7482         .pru_shutdown = sctp_shutdown,
7483         .pru_sockaddr = sctp_ingetaddr,
7484         .pru_sosend = sctp_sosend,
7485         .pru_soreceive = sctp_soreceive
7486 };
7487
7488 #endif