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         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 #ifdef VIMAGE
  93 static void
  94 sctp_finish(void *unused __unused)
  95 {
  96         sctp_pcb_finish();
  97 }
  98
  99 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 100 #endif
 101
 102 void
 103 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 104 {
 105         struct sctp_tmit_chunk *chk;
 106         uint16_t overhead;
 107
 108         /* Adjust that too */
 109         stcb->asoc.smallest_mtu = nxtsz;
 110         /* now off to subtract IP_DF flag if needed */
 111         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 112         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 113                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 114         }
 115         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 116                 if ((chk->send_size + overhead) > nxtsz) {
 117                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 118                 }
 119         }
 120         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 121                 if ((chk->send_size + overhead) > nxtsz) {
 122                         /*
 123                          * For this guy we also mark for immediate resend
 124                          * since we sent to big of chunk
 125                          */
 126                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 127                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 128                                 sctp_flight_size_decrease(chk);
 129                                 sctp_total_flight_decrease(stcb, chk);
 130                                 chk->sent = SCTP_DATAGRAM_RESEND;
 131                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 132                                 chk->rec.data.doing_fast_retransmit = 0;
 133                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 134                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 135                                             chk->whoTo->flight_size,
 136                                             chk->book_size,
 137                                             (uint32_t)(uintptr_t)chk->whoTo,
 138                                             chk->rec.data.tsn);
 139                                 }
 140                                 /* Clear any time so NO RTT is being done */
 141                                 chk->do_rtt = 0;
 142                         }
 143                 }
 144         }
 145 }
 146
 147 #ifdef INET
 148 void
 149 sctp_notify(struct sctp_inpcb *inp,
 150     struct sctp_tcb *stcb,
 151     struct sctp_nets *net,
 152     uint8_t icmp_type,
 153     uint8_t icmp_code,
 154     uint16_t ip_len,
 155     uint32_t next_mtu)
 156 {
 157 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 158         struct socket *so;
 159 #endif
 160         int timer_stopped;
 161
 162         if (icmp_type != ICMP_UNREACH) {
 163                 /* We only care about unreachable */
 164                 SCTP_TCB_UNLOCK(stcb);
 165                 return;
 166         }
 167         if ((icmp_code == ICMP_UNREACH_NET) ||
 168             (icmp_code == ICMP_UNREACH_HOST) ||
 169             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 170             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 171             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 172             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 173             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 174             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 175                 /* Mark the net unreachable. */
 176                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 177                         /* OK, that destination is NOT reachable. */
 178                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 179                         net->dest_state &= ~SCTP_ADDR_PF;
 180                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 181                             stcb, 0,
 182                             (void *)net, SCTP_SO_NOT_LOCKED);
 183                 }
 184                 SCTP_TCB_UNLOCK(stcb);
 185         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 186             (icmp_code == ICMP_UNREACH_PORT)) {
 187                 /* Treat it like an ABORT. */
 188                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 189 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 190                 so = SCTP_INP_SO(inp);
 191                 atomic_add_int(&stcb->asoc.refcnt, 1);
 192                 SCTP_TCB_UNLOCK(stcb);
 193                 SCTP_SOCKET_LOCK(so, 1);
 194                 SCTP_TCB_LOCK(stcb);
 195                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 196 #endif
 197                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 199 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 200                 SCTP_SOCKET_UNLOCK(so, 1);
 201                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 202 #endif
 203                 /* no need to unlock here, since the TCB is gone */
 204         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 205                 if ((net->dest_state & SCTP_ADDR_NO_PMTUD) == 0) {
 206                         SCTP_TCB_UNLOCK(stcb);
 207                         return;
 208                 }
 209                 /* Find the next (smaller) MTU */
 210                 if (next_mtu == 0) {
 211                         /*
 212                          * Old type router that does not tell us what the
 213                          * next MTU is. Rats we will have to guess (in a
 214                          * educated fashion of course).
 215                          */
 216                         next_mtu = sctp_get_prev_mtu(ip_len);
 217                 }
 218                 /* Stop the PMTU timer. */
 219                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 220                         timer_stopped = 1;
 221                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 222                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 223                 } else {
 224                         timer_stopped = 0;
 225                 }
 226                 /* Update the path MTU. */
 227                 if (net->port) {
 228                         next_mtu -= sizeof(struct udphdr);
 229                 }
 230                 if (net->mtu > next_mtu) {
 231                         net->mtu = next_mtu;
 232                         if (net->port) {
 233                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 234                         } else {
 235                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 236                         }
 237                 }
 238                 /* Update the association MTU */
 239                 if (stcb->asoc.smallest_mtu > next_mtu) {
 240                         sctp_pathmtu_adjustment(stcb, next_mtu);
 241                 }
 242                 /* Finally, start the PMTU timer if it was running before. */
 243                 if (timer_stopped) {
 244                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 245                 }
 246                 SCTP_TCB_UNLOCK(stcb);
 247         } else {
 248                 SCTP_TCB_UNLOCK(stcb);
 249         }
 250 }
 251
 252 void
 253 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 254 {
 255         struct ip *outer_ip;
 256         struct ip *inner_ip;
 257         struct sctphdr *sh;
 258         struct icmp *icmp;
 259         struct sctp_inpcb *inp;
 260         struct sctp_tcb *stcb;
 261         struct sctp_nets *net;
 262         struct sctp_init_chunk *ch;
 263         struct sockaddr_in src, dst;
 264
 265         if (sa->sa_family != AF_INET ||
 266             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 267                 return;
 268         }
 269         if (PRC_IS_REDIRECT(cmd)) {
 270                 vip = NULL;
 271         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 272                 return;
 273         }
 274         if (vip != NULL) {
 275                 inner_ip = (struct ip *)vip;
 276                 icmp = (struct icmp *)((caddr_t)inner_ip -
 277                     (sizeof(struct icmp) - sizeof(struct ip)));
 278                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 279                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 280                 memset(&src, 0, sizeof(struct sockaddr_in));
 281                 src.sin_family = AF_INET;
 282                 src.sin_len = sizeof(struct sockaddr_in);
 283                 src.sin_port = sh->src_port;
 284                 src.sin_addr = inner_ip->ip_src;
 285                 memset(&dst, 0, sizeof(struct sockaddr_in));
 286                 dst.sin_family = AF_INET;
 287                 dst.sin_len = sizeof(struct sockaddr_in);
 288                 dst.sin_port = sh->dest_port;
 289                 dst.sin_addr = inner_ip->ip_dst;
 290                 /*
 291                  * 'dst' holds the dest of the packet that failed to be
 292                  * sent. 'src' holds our local endpoint address. Thus we
 293                  * reverse the dst and the src in the lookup.
 294                  */
 295                 inp = NULL;
 296                 net = NULL;
 297                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 298                     (struct sockaddr *)&src,
 299                     &inp, &net, 1,
 300                     SCTP_DEFAULT_VRFID);
 301                 if ((stcb != NULL) &&
 302                     (net != NULL) &&
 303                     (inp != NULL)) {
 304                         /* Check the verification tag */
 305                         if (ntohl(sh->v_tag) != 0) {
 306                                 /*
 307                                  * This must be the verification tag used
 308                                  * for sending out packets. We don't
 309                                  * consider packets reflecting the
 310                                  * verification tag.
 311                                  */
 312                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 313                                         SCTP_TCB_UNLOCK(stcb);
 314                                         return;
 315                                 }
 316                         } else {
 317                                 if (ntohs(outer_ip->ip_len) >=
 318                                     sizeof(struct ip) +
 319                                     8 + (inner_ip->ip_hl << 2) + 20) {
 320                                         /*
 321                                          * In this case we can check if we
 322                                          * got an INIT chunk and if the
 323                                          * initiate tag matches.
 324                                          */
 325                                         ch = (struct sctp_init_chunk *)(sh + 1);
 326                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 327                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 328                                                 SCTP_TCB_UNLOCK(stcb);
 329                                                 return;
 330                                         }
 331                                 } else {
 332                                         SCTP_TCB_UNLOCK(stcb);
 333                                         return;
 334                                 }
 335                         }
 336                         sctp_notify(inp, stcb, net,
 337                             icmp->icmp_type,
 338                             icmp->icmp_code,
 339                             ntohs(inner_ip->ip_len),
 340                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 341                 } else {
 342                         if ((stcb == NULL) && (inp != NULL)) {
 343                                 /* reduce ref-count */
 344                                 SCTP_INP_WLOCK(inp);
 345                                 SCTP_INP_DECR_REF(inp);
 346                                 SCTP_INP_WUNLOCK(inp);
 347                         }
 348                         if (stcb) {
 349                                 SCTP_TCB_UNLOCK(stcb);
 350                         }
 351                 }
 352         }
 353         return;
 354 }
 355 #endif
 356
 357 static int
 358 sctp_getcred(SYSCTL_HANDLER_ARGS)
 359 {
 360         struct xucred xuc;
 361         struct sockaddr_in addrs[2];
 362         struct sctp_inpcb *inp;
 363         struct sctp_nets *net;
 364         struct sctp_tcb *stcb;
 365         int error;
 366         uint32_t vrf_id;
 367
 368         /* FIX, for non-bsd is this right? */
 369         vrf_id = SCTP_DEFAULT_VRFID;
 370
 371         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 372
 373         if (error)
 374                 return (error);
 375
 376         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 377         if (error)
 378                 return (error);
 379
 380         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 381             sintosa(&addrs[0]),
 382             &inp, &net, 1, vrf_id);
 383         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 384                 if ((inp != NULL) && (stcb == NULL)) {
 385                         /* reduce ref-count */
 386                         SCTP_INP_WLOCK(inp);
 387                         SCTP_INP_DECR_REF(inp);
 388                         goto cred_can_cont;
 389                 }
 390                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 391                 error = ENOENT;
 392                 goto out;
 393         }
 394         SCTP_TCB_UNLOCK(stcb);
 395         /*
 396          * We use the write lock here, only since in the error leg we need
 397          * it. If we used RLOCK, then we would have to
 398          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 399          * Better to use higher wlock.
 400          */
 401         SCTP_INP_WLOCK(inp);
 402 cred_can_cont:
 403         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 404         if (error) {
 405                 SCTP_INP_WUNLOCK(inp);
 406                 goto out;
 407         }
 408         cru2x(inp->sctp_socket->so_cred, &xuc);
 409         SCTP_INP_WUNLOCK(inp);
 410         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 411 out:
 412         return (error);
 413 }
 414
 415 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 416     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 417
 418
 419 #ifdef INET
 420 static void
 421 sctp_abort(struct socket *so)
 422 {
 423         struct sctp_inpcb *inp;
 424         uint32_t flags;
 425
 426         inp = (struct sctp_inpcb *)so->so_pcb;
 427         if (inp == NULL) {
 428                 return;
 429         }
 430 sctp_must_try_again:
 431         flags = inp->sctp_flags;
 432 #ifdef SCTP_LOG_CLOSING
 433         sctp_log_closing(inp, NULL, 17);
 434 #endif
 435         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 436             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 437 #ifdef SCTP_LOG_CLOSING
 438                 sctp_log_closing(inp, NULL, 16);
 439 #endif
 440                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 441                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 442                 SOCK_LOCK(so);
 443                 SCTP_SB_CLEAR(so->so_snd);
 444                 /*
 445                  * same for the rcv ones, they are only here for the
 446                  * accounting/select.
 447                  */
 448                 SCTP_SB_CLEAR(so->so_rcv);
 449
 450                 /* Now null out the reference, we are completely detached. */
 451                 so->so_pcb = NULL;
 452                 SOCK_UNLOCK(so);
 453         } else {
 454                 flags = inp->sctp_flags;
 455                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 456                         goto sctp_must_try_again;
 457                 }
 458         }
 459         return;
 460 }
 461
 462 static int
 463 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 464 {
 465         struct sctp_inpcb *inp;
 466         struct inpcb *ip_inp;
 467         int error;
 468         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 469
 470         inp = (struct sctp_inpcb *)so->so_pcb;
 471         if (inp != NULL) {
 472                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 473                 return (EINVAL);
 474         }
 475         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 476                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 477                 if (error) {
 478                         return (error);
 479                 }
 480         }
 481         error = sctp_inpcb_alloc(so, vrf_id);
 482         if (error) {
 483                 return (error);
 484         }
 485         inp = (struct sctp_inpcb *)so->so_pcb;
 486         SCTP_INP_WLOCK(inp);
 487         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 488         ip_inp = &inp->ip_inp.inp;
 489         ip_inp->inp_vflag |= INP_IPV4;
 490         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 491         SCTP_INP_WUNLOCK(inp);
 492         return (0);
 493 }
 494
 495 static int
 496 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 497 {
 498         struct sctp_inpcb *inp;
 499
 500         inp = (struct sctp_inpcb *)so->so_pcb;
 501         if (inp == NULL) {
 502                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 503                 return (EINVAL);
 504         }
 505         if (addr != NULL) {
 506                 if ((addr->sa_family != AF_INET) ||
 507                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 508                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 509                         return (EINVAL);
 510                 }
 511         }
 512         return (sctp_inpcb_bind(so, addr, NULL, p));
 513 }
 514
 515 #endif
 516 void
 517 sctp_close(struct socket *so)
 518 {
 519         struct sctp_inpcb *inp;
 520         uint32_t flags;
 521
 522         inp = (struct sctp_inpcb *)so->so_pcb;
 523         if (inp == NULL)
 524                 return;
 525
 526         /*
 527          * Inform all the lower layer assoc that we are done.
 528          */
 529 sctp_must_try_again:
 530         flags = inp->sctp_flags;
 531 #ifdef SCTP_LOG_CLOSING
 532         sctp_log_closing(inp, NULL, 17);
 533 #endif
 534         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 535             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 536                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 537                     (so->so_rcv.sb_cc > 0)) {
 538 #ifdef SCTP_LOG_CLOSING
 539                         sctp_log_closing(inp, NULL, 13);
 540 #endif
 541                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 542                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 543                 } else {
 544 #ifdef SCTP_LOG_CLOSING
 545                         sctp_log_closing(inp, NULL, 14);
 546 #endif
 547                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 548                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 549                 }
 550                 /*
 551                  * The socket is now detached, no matter what the state of
 552                  * the SCTP association.
 553                  */
 554                 SOCK_LOCK(so);
 555                 SCTP_SB_CLEAR(so->so_snd);
 556                 /*
 557                  * same for the rcv ones, they are only here for the
 558                  * accounting/select.
 559                  */
 560                 SCTP_SB_CLEAR(so->so_rcv);
 561
 562                 /* Now null out the reference, we are completely detached. */
 563                 so->so_pcb = NULL;
 564                 SOCK_UNLOCK(so);
 565         } else {
 566                 flags = inp->sctp_flags;
 567                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 568                         goto sctp_must_try_again;
 569                 }
 570         }
 571         return;
 572 }
 573
 574
 575 int
 576 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 577     struct mbuf *control, struct thread *p);
 578
 579
 580 int
 581 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 582     struct mbuf *control, struct thread *p)
 583 {
 584         struct sctp_inpcb *inp;
 585         int error;
 586
 587         inp = (struct sctp_inpcb *)so->so_pcb;
 588         if (inp == NULL) {
 589                 if (control) {
 590                         sctp_m_freem(control);
 591                         control = NULL;
 592                 }
 593                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 594                 sctp_m_freem(m);
 595                 return (EINVAL);
 596         }
 597         /* Got to have an to address if we are NOT a connected socket */
 598         if ((addr == NULL) &&
 599             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 600             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 601                 goto connected_type;
 602         } else if (addr == NULL) {
 603                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 604                 error = EDESTADDRREQ;
 605                 sctp_m_freem(m);
 606                 if (control) {
 607                         sctp_m_freem(control);
 608                         control = NULL;
 609                 }
 610                 return (error);
 611         }
 612 #ifdef INET6
 613         if (addr->sa_family != AF_INET) {
 614                 /* must be a v4 address! */
 615                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 616                 sctp_m_freem(m);
 617                 if (control) {
 618                         sctp_m_freem(control);
 619                         control = NULL;
 620                 }
 621                 error = EDESTADDRREQ;
 622                 return (error);
 623         }
 624 #endif                          /* INET6 */
 625 connected_type:
 626         /* now what about control */
 627         if (control) {
 628                 if (inp->control) {
 629                         SCTP_PRINTF("huh? control set?\n");
 630                         sctp_m_freem(inp->control);
 631                         inp->control = NULL;
 632                 }
 633                 inp->control = control;
 634         }
 635         /* Place the data */
 636         if (inp->pkt) {
 637                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 638                 inp->pkt_last = m;
 639         } else {
 640                 inp->pkt_last = inp->pkt = m;
 641         }
 642         if (
 643         /* FreeBSD uses a flag passed */
 644             ((flags & PRUS_MORETOCOME) == 0)
 645             ) {
 646                 /*
 647                  * note with the current version this code will only be used
 648                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 649                  * re-defining sosend to use the sctp_sosend. One can
 650                  * optionally switch back to this code (by changing back the
 651                  * definitions) but this is not advisable. This code is used
 652                  * by FreeBSD when sending a file with sendfile() though.
 653                  */
 654                 int ret;
 655
 656                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 657                 inp->pkt = NULL;
 658                 inp->control = NULL;
 659                 return (ret);
 660         } else {
 661                 return (0);
 662         }
 663 }
 664
 665 int
 666 sctp_disconnect(struct socket *so)
 667 {
 668         struct sctp_inpcb *inp;
 669
 670         inp = (struct sctp_inpcb *)so->so_pcb;
 671         if (inp == NULL) {
 672                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 673                 return (ENOTCONN);
 674         }
 675         SCTP_INP_RLOCK(inp);
 676         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 677             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 678                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 679                         /* No connection */
 680                         SCTP_INP_RUNLOCK(inp);
 681                         return (0);
 682                 } else {
 683                         struct sctp_association *asoc;
 684                         struct sctp_tcb *stcb;
 685
 686                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 687                         if (stcb == NULL) {
 688                                 SCTP_INP_RUNLOCK(inp);
 689                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 690                                 return (EINVAL);
 691                         }
 692                         SCTP_TCB_LOCK(stcb);
 693                         asoc = &stcb->asoc;
 694                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 695                                 /* We are about to be freed, out of here */
 696                                 SCTP_TCB_UNLOCK(stcb);
 697                                 SCTP_INP_RUNLOCK(inp);
 698                                 return (0);
 699                         }
 700                         if (((so->so_options & SO_LINGER) &&
 701                             (so->so_linger == 0)) ||
 702                             (so->so_rcv.sb_cc > 0)) {
 703                                 if (SCTP_GET_STATE(asoc) !=
 704                                     SCTP_STATE_COOKIE_WAIT) {
 705                                         /* Left with Data unread */
 706                                         struct mbuf *err;
 707
 708                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 709                                         if (err) {
 710                                                 /*
 711                                                  * Fill in the user
 712                                                  * initiated abort
 713                                                  */
 714                                                 struct sctp_paramhdr *ph;
 715
 716                                                 ph = mtod(err, struct sctp_paramhdr *);
 717                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 718                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 719                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 720                                         }
 721                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 722                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 723                                 }
 724                                 SCTP_INP_RUNLOCK(inp);
 725                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 726                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 727                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 728                                 }
 729                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 730                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 731                                 /* No unlock tcb assoc is gone */
 732                                 return (0);
 733                         }
 734                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 735                             TAILQ_EMPTY(&asoc->sent_queue) &&
 736                             (asoc->stream_queue_cnt == 0)) {
 737                                 /* there is nothing queued to send, so done */
 738                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 739                                         goto abort_anyway;
 740                                 }
 741                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 742                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 743                                         /* only send SHUTDOWN 1st time thru */
 744                                         struct sctp_nets *netp;
 745
 746                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 747                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 748                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 749                                         }
 750                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 751                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 752                                         sctp_stop_timers_for_shutdown(stcb);
 753                                         if (stcb->asoc.alternate) {
 754                                                 netp = stcb->asoc.alternate;
 755                                         } else {
 756                                                 netp = stcb->asoc.primary_destination;
 757                                         }
 758                                         sctp_send_shutdown(stcb, netp);
 759                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 760                                             stcb->sctp_ep, stcb, netp);
 761                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 762                                             stcb->sctp_ep, stcb, netp);
 763                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 764                                 }
 765                         } else {
 766                                 /*
 767                                  * we still got (or just got) data to send,
 768                                  * so set SHUTDOWN_PENDING
 769                                  */
 770                                 /*
 771                                  * XXX sockets draft says that SCTP_EOF
 772                                  * should be sent with no data. currently,
 773                                  * we will allow user data to be sent first
 774                                  * and move to SHUTDOWN-PENDING
 775                                  */
 776                                 struct sctp_nets *netp;
 777
 778                                 if (stcb->asoc.alternate) {
 779                                         netp = stcb->asoc.alternate;
 780                                 } else {
 781                                         netp = stcb->asoc.primary_destination;
 782                                 }
 783
 784                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 785                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 786                                     netp);
 787                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 788                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 789                                 }
 790                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 791                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 792                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 793                                         struct mbuf *op_err;
 794
 795                         abort_anyway:
 796                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 797                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 798                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 799                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 800                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 801                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 802                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 803                                         }
 804                                         SCTP_INP_RUNLOCK(inp);
 805                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 806                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 807                                         return (0);
 808                                 } else {
 809                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 810                                 }
 811                         }
 812                         soisdisconnecting(so);
 813                         SCTP_TCB_UNLOCK(stcb);
 814                         SCTP_INP_RUNLOCK(inp);
 815                         return (0);
 816                 }
 817                 /* not reached */
 818         } else {
 819                 /* UDP model does not support this */
 820                 SCTP_INP_RUNLOCK(inp);
 821                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 822                 return (EOPNOTSUPP);
 823         }
 824 }
 825
 826 int
 827 sctp_flush(struct socket *so, int how)
 828 {
 829         /*
 830          * We will just clear out the values and let subsequent close clear
 831          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 832          * they will not be able to read the data, the socket will block
 833          * that from happening.
 834          */
 835         struct sctp_inpcb *inp;
 836
 837         inp = (struct sctp_inpcb *)so->so_pcb;
 838         if (inp == NULL) {
 839                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 840                 return (EINVAL);
 841         }
 842         SCTP_INP_RLOCK(inp);
 843         /* For the 1 to many model this does nothing */
 844         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 845                 SCTP_INP_RUNLOCK(inp);
 846                 return (0);
 847         }
 848         SCTP_INP_RUNLOCK(inp);
 849         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 850                 /*
 851                  * First make sure the sb will be happy, we don't use these
 852                  * except maybe the count
 853                  */
 854                 SCTP_INP_WLOCK(inp);
 855                 SCTP_INP_READ_LOCK(inp);
 856                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 857                 SCTP_INP_READ_UNLOCK(inp);
 858                 SCTP_INP_WUNLOCK(inp);
 859                 so->so_rcv.sb_cc = 0;
 860                 so->so_rcv.sb_mbcnt = 0;
 861                 so->so_rcv.sb_mb = NULL;
 862         }
 863         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 864                 /*
 865                  * First make sure the sb will be happy, we don't use these
 866                  * except maybe the count
 867                  */
 868                 so->so_snd.sb_cc = 0;
 869                 so->so_snd.sb_mbcnt = 0;
 870                 so->so_snd.sb_mb = NULL;
 871
 872         }
 873         return (0);
 874 }
 875
 876 int
 877 sctp_shutdown(struct socket *so)
 878 {
 879         struct sctp_inpcb *inp;
 880
 881         inp = (struct sctp_inpcb *)so->so_pcb;
 882         if (inp == NULL) {
 883                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 884                 return (EINVAL);
 885         }
 886         SCTP_INP_RLOCK(inp);
 887         /* For UDP model this is a invalid call */
 888         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 889             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 890                 /* Restore the flags that the soshutdown took away. */
 891                 SOCKBUF_LOCK(&so->so_rcv);
 892                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 893                 SOCKBUF_UNLOCK(&so->so_rcv);
 894                 /* This proc will wakeup for read and do nothing (I hope) */
 895                 SCTP_INP_RUNLOCK(inp);
 896                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 897                 return (EOPNOTSUPP);
 898         } else {
 899                 /*
 900                  * Ok, if we reach here its the TCP model and it is either a
 901                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 902                  * against it.
 903                  */
 904                 struct sctp_tcb *stcb;
 905                 struct sctp_association *asoc;
 906                 struct sctp_nets *netp;
 907
 908                 if ((so->so_state &
 909                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 910                         SCTP_INP_RUNLOCK(inp);
 911                         return (ENOTCONN);
 912                 }
 913                 socantsendmore(so);
 914
 915                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 916                 if (stcb == NULL) {
 917                         /*
 918                          * Ok, we hit the case that the shutdown call was
 919                          * made after an abort or something. Nothing to do
 920                          * now.
 921                          */
 922                         SCTP_INP_RUNLOCK(inp);
 923                         return (0);
 924                 }
 925                 SCTP_TCB_LOCK(stcb);
 926                 asoc = &stcb->asoc;
 927                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 928                         SCTP_TCB_UNLOCK(stcb);
 929                         SCTP_INP_RUNLOCK(inp);
 930                         return (0);
 931                 }
 932                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 933                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 934                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 935                         /*
 936                          * If we are not in or before ESTABLISHED, there is
 937                          * no protocol action required.
 938                          */
 939                         SCTP_TCB_UNLOCK(stcb);
 940                         SCTP_INP_RUNLOCK(inp);
 941                         return (0);
 942                 }
 943                 if (stcb->asoc.alternate) {
 944                         netp = stcb->asoc.alternate;
 945                 } else {
 946                         netp = stcb->asoc.primary_destination;
 947                 }
 948                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 949                     TAILQ_EMPTY(&asoc->send_queue) &&
 950                     TAILQ_EMPTY(&asoc->sent_queue) &&
 951                     (asoc->stream_queue_cnt == 0)) {
 952                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 953                                 goto abort_anyway;
 954                         }
 955                         /* there is nothing queued to send, so I'm done... */
 956                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 957                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 958                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 959                         sctp_stop_timers_for_shutdown(stcb);
 960                         sctp_send_shutdown(stcb, netp);
 961                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 962                             stcb->sctp_ep, stcb, netp);
 963                 } else {
 964                         /*
 965                          * We still got (or just got) data to send, so set
 966                          * SHUTDOWN_PENDING.
 967                          */
 968                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 969                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 970                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 971                         }
 972                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 973                             TAILQ_EMPTY(&asoc->sent_queue) &&
 974                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 975                                 struct mbuf *op_err;
 976
 977                 abort_anyway:
 978                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 979                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 980                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 981                                     op_err, SCTP_SO_LOCKED);
 982                                 SCTP_INP_RUNLOCK(inp);
 983                                 return (0);
 984                         }
 985                 }
 986                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 987                 /*
 988                  * XXX: Why do this in the case where we have still data
 989                  * queued?
 990                  */
 991                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 992                 SCTP_TCB_UNLOCK(stcb);
 993                 SCTP_INP_RUNLOCK(inp);
 994                 return (0);
 995         }
 996 }
 997
 998 /*
 999  * copies a "user" presentable address and removes embedded scope, etc.
1000  * returns 0 on success, 1 on error
1001  */
1002 static uint32_t
1003 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1004 {
1005 #ifdef INET6
1006         struct sockaddr_in6 lsa6;
1007
1008         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1009             &lsa6);
1010 #endif
1011         memcpy(ss, sa, sa->sa_len);
1012         return (0);
1013 }
1014
1015
1016
1017 /*
1018  * NOTE: assumes addr lock is held
1019  */
1020 static size_t
1021 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1022     struct sctp_tcb *stcb,
1023     size_t limit,
1024     struct sockaddr_storage *sas,
1025     uint32_t vrf_id)
1026 {
1027         struct sctp_ifn *sctp_ifn;
1028         struct sctp_ifa *sctp_ifa;
1029         size_t actual;
1030         int loopback_scope;
1031 #if defined(INET)
1032         int ipv4_local_scope, ipv4_addr_legal;
1033 #endif
1034 #if defined(INET6)
1035         int local_scope, site_scope, ipv6_addr_legal;
1036 #endif
1037         struct sctp_vrf *vrf;
1038
1039         actual = 0;
1040         if (limit <= 0)
1041                 return (actual);
1042
1043         if (stcb) {
1044                 /* Turn on all the appropriate scope */
1045                 loopback_scope = stcb->asoc.scope.loopback_scope;
1046 #if defined(INET)
1047                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1048                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1049 #endif
1050 #if defined(INET6)
1051                 local_scope = stcb->asoc.scope.local_scope;
1052                 site_scope = stcb->asoc.scope.site_scope;
1053                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1054 #endif
1055         } else {
1056                 /* Use generic values for endpoints. */
1057                 loopback_scope = 1;
1058 #if defined(INET)
1059                 ipv4_local_scope = 1;
1060 #endif
1061 #if defined(INET6)
1062                 local_scope = 1;
1063                 site_scope = 1;
1064 #endif
1065                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1066 #if defined(INET6)
1067                         ipv6_addr_legal = 1;
1068 #endif
1069 #if defined(INET)
1070                         if (SCTP_IPV6_V6ONLY(inp)) {
1071                                 ipv4_addr_legal = 0;
1072                         } else {
1073                                 ipv4_addr_legal = 1;
1074                         }
1075 #endif
1076                 } else {
1077 #if defined(INET6)
1078                         ipv6_addr_legal = 0;
1079 #endif
1080 #if defined(INET)
1081                         ipv4_addr_legal = 1;
1082 #endif
1083                 }
1084         }
1085         vrf = sctp_find_vrf(vrf_id);
1086         if (vrf == NULL) {
1087                 return (0);
1088         }
1089         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1090                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1091                         if ((loopback_scope == 0) &&
1092                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1093                                 /* Skip loopback if loopback_scope not set */
1094                                 continue;
1095                         }
1096                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1097                                 if (stcb) {
1098                                         /*
1099                                          * For the BOUND-ALL case, the list
1100                                          * associated with a TCB is Always
1101                                          * considered a reverse list.. i.e.
1102                                          * it lists addresses that are NOT
1103                                          * part of the association. If this
1104                                          * is one of those we must skip it.
1105                                          */
1106                                         if (sctp_is_addr_restricted(stcb,
1107                                             sctp_ifa)) {
1108                                                 continue;
1109                                         }
1110                                 }
1111                                 switch (sctp_ifa->address.sa.sa_family) {
1112 #ifdef INET
1113                                 case AF_INET:
1114                                         if (ipv4_addr_legal) {
1115                                                 struct sockaddr_in *sin;
1116
1117                                                 sin = &sctp_ifa->address.sin;
1118                                                 if (sin->sin_addr.s_addr == 0) {
1119                                                         /*
1120                                                          * we skip
1121                                                          * unspecifed
1122                                                          * addresses
1123                                                          */
1124                                                         continue;
1125                                                 }
1126                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1127                                                     &sin->sin_addr) != 0) {
1128                                                         continue;
1129                                                 }
1130                                                 if ((ipv4_local_scope == 0) &&
1131                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1132                                                         continue;
1133                                                 }
1134 #ifdef INET6
1135                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1136                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1137                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1138                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1139                                                         actual += sizeof(struct sockaddr_in6);
1140                                                 } else {
1141 #endif
1142                                                         memcpy(sas, sin, sizeof(*sin));
1143                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1144                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1145                                                         actual += sizeof(*sin);
1146 #ifdef INET6
1147                                                 }
1148 #endif
1149                                                 if (actual >= limit) {
1150                                                         return (actual);
1151                                                 }
1152                                         } else {
1153                                                 continue;
1154                                         }
1155                                         break;
1156 #endif
1157 #ifdef INET6
1158                                 case AF_INET6:
1159                                         if (ipv6_addr_legal) {
1160                                                 struct sockaddr_in6 *sin6;
1161
1162                                                 sin6 = &sctp_ifa->address.sin6;
1163                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1164                                                         /*
1165                                                          * we skip
1166                                                          * unspecifed
1167                                                          * addresses
1168                                                          */
1169                                                         continue;
1170                                                 }
1171                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1172                                                     &sin6->sin6_addr) != 0) {
1173                                                         continue;
1174                                                 }
1175                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1176                                                         if (local_scope == 0)
1177                                                                 continue;
1178                                                         if (sin6->sin6_scope_id == 0) {
1179                                                                 if (sa6_recoverscope(sin6) != 0)
1180                                                                         /*
1181                                                                          *
1182                                                                          * bad
1183                                                                          * link
1184                                                                          *
1185                                                                          * local
1186                                                                          *
1187                                                                          * address
1188                                                                          */
1189                                                                         continue;
1190                                                         }
1191                                                 }
1192                                                 if ((site_scope == 0) &&
1193                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1194                                                         continue;
1195                                                 }
1196                                                 memcpy(sas, sin6, sizeof(*sin6));
1197                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1198                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1199                                                 actual += sizeof(*sin6);
1200                                                 if (actual >= limit) {
1201                                                         return (actual);
1202                                                 }
1203                                         } else {
1204                                                 continue;
1205                                         }
1206                                         break;
1207 #endif
1208                                 default:
1209                                         /* TSNH */
1210                                         break;
1211                                 }
1212                         }
1213                 }
1214         } else {
1215                 struct sctp_laddr *laddr;
1216
1217                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1218                         if (stcb) {
1219                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1220                                         continue;
1221                                 }
1222                         }
1223                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1224                                 continue;
1225                         switch (laddr->ifa->address.sa.sa_family) {
1226 #ifdef INET
1227                         case AF_INET:
1228                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1229                                 break;
1230 #endif
1231 #ifdef INET6
1232                         case AF_INET6:
1233                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1234                                 break;
1235 #endif
1236                         default:
1237                                 /* TSNH */
1238                                 break;
1239                         }
1240                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1241                             laddr->ifa->address.sa.sa_len);
1242                         actual += laddr->ifa->address.sa.sa_len;
1243                         if (actual >= limit) {
1244                                 return (actual);
1245                         }
1246                 }
1247         }
1248         return (actual);
1249 }
1250
1251 static size_t
1252 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1253     struct sctp_tcb *stcb,
1254     size_t limit,
1255     struct sockaddr_storage *sas)
1256 {
1257         size_t size = 0;
1258
1259         SCTP_IPI_ADDR_RLOCK();
1260         /* fill up addresses for the endpoint's default vrf */
1261         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1262             inp->def_vrf_id);
1263         SCTP_IPI_ADDR_RUNLOCK();
1264         return (size);
1265 }
1266
1267 /*
1268  * NOTE: assumes addr lock is held
1269  */
1270 static int
1271 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1272 {
1273         int cnt = 0;
1274         struct sctp_vrf *vrf = NULL;
1275
1276         /*
1277          * In both sub-set bound an bound_all cases we return the MAXIMUM
1278          * number of addresses that you COULD get. In reality the sub-set
1279          * bound may have an exclusion list for a given TCB OR in the
1280          * bound-all case a TCB may NOT include the loopback or other
1281          * addresses as well.
1282          */
1283         vrf = sctp_find_vrf(vrf_id);
1284         if (vrf == NULL) {
1285                 return (0);
1286         }
1287         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1288                 struct sctp_ifn *sctp_ifn;
1289                 struct sctp_ifa *sctp_ifa;
1290
1291                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1292                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1293                                 /* Count them if they are the right type */
1294                                 switch (sctp_ifa->address.sa.sa_family) {
1295 #ifdef INET
1296                                 case AF_INET:
1297 #ifdef INET6
1298                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1299                                                 cnt += sizeof(struct sockaddr_in6);
1300                                         else
1301                                                 cnt += sizeof(struct sockaddr_in);
1302 #else
1303                                         cnt += sizeof(struct sockaddr_in);
1304 #endif
1305                                         break;
1306 #endif
1307 #ifdef INET6
1308                                 case AF_INET6:
1309                                         cnt += sizeof(struct sockaddr_in6);
1310                                         break;
1311 #endif
1312                                 default:
1313                                         break;
1314                                 }
1315                         }
1316                 }
1317         } else {
1318                 struct sctp_laddr *laddr;
1319
1320                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1321                         switch (laddr->ifa->address.sa.sa_family) {
1322 #ifdef INET
1323                         case AF_INET:
1324 #ifdef INET6
1325                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1326                                         cnt += sizeof(struct sockaddr_in6);
1327                                 else
1328                                         cnt += sizeof(struct sockaddr_in);
1329 #else
1330                                 cnt += sizeof(struct sockaddr_in);
1331 #endif
1332                                 break;
1333 #endif
1334 #ifdef INET6
1335                         case AF_INET6:
1336                                 cnt += sizeof(struct sockaddr_in6);
1337                                 break;
1338 #endif
1339                         default:
1340                                 break;
1341                         }
1342                 }
1343         }
1344         return (cnt);
1345 }
1346
1347 static int
1348 sctp_count_max_addresses(struct sctp_inpcb *inp)
1349 {
1350         int cnt = 0;
1351
1352         SCTP_IPI_ADDR_RLOCK();
1353         /* count addresses for the endpoint's default VRF */
1354         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1355         SCTP_IPI_ADDR_RUNLOCK();
1356         return (cnt);
1357 }
1358
1359 static int
1360 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1361     size_t optsize, void *p, int delay)
1362 {
1363         int error = 0;
1364         int creat_lock_on = 0;
1365         struct sctp_tcb *stcb = NULL;
1366         struct sockaddr *sa;
1367         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1368         uint32_t vrf_id;
1369         int bad_addresses = 0;
1370         sctp_assoc_t *a_id;
1371
1372         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1373
1374         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1375             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1376                 /* We are already connected AND the TCP model */
1377                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1378                 return (EADDRINUSE);
1379         }
1380         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1381             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1382                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1383                 return (EINVAL);
1384         }
1385         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1386                 SCTP_INP_RLOCK(inp);
1387                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1388                 SCTP_INP_RUNLOCK(inp);
1389         }
1390         if (stcb) {
1391                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1392                 return (EALREADY);
1393         }
1394         SCTP_INP_INCR_REF(inp);
1395         SCTP_ASOC_CREATE_LOCK(inp);
1396         creat_lock_on = 1;
1397         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1398             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1399                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1400                 error = EFAULT;
1401                 goto out_now;
1402         }
1403         totaddrp = (unsigned int *)optval;
1404         totaddr = *totaddrp;
1405         sa = (struct sockaddr *)(totaddrp + 1);
1406         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1407         if ((stcb != NULL) || bad_addresses) {
1408                 /* Already have or am bring up an association */
1409                 SCTP_ASOC_CREATE_UNLOCK(inp);
1410                 creat_lock_on = 0;
1411                 if (stcb)
1412                         SCTP_TCB_UNLOCK(stcb);
1413                 if (bad_addresses == 0) {
1414                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1415                         error = EALREADY;
1416                 }
1417                 goto out_now;
1418         }
1419 #ifdef INET6
1420         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1421             (num_v6 > 0)) {
1422                 error = EINVAL;
1423                 goto out_now;
1424         }
1425         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1426             (num_v4 > 0)) {
1427                 struct in6pcb *inp6;
1428
1429                 inp6 = (struct in6pcb *)inp;
1430                 if (SCTP_IPV6_V6ONLY(inp6)) {
1431                         /*
1432                          * if IPV6_V6ONLY flag, ignore connections destined
1433                          * to a v4 addr or v4-mapped addr
1434                          */
1435                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1436                         error = EINVAL;
1437                         goto out_now;
1438                 }
1439         }
1440 #endif                          /* INET6 */
1441         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1442             SCTP_PCB_FLAGS_UNBOUND) {
1443                 /* Bind a ephemeral port */
1444                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1445                 if (error) {
1446                         goto out_now;
1447                 }
1448         }
1449         /* FIX ME: do we want to pass in a vrf on the connect call? */
1450         vrf_id = inp->def_vrf_id;
1451
1452
1453         /* We are GOOD to go */
1454         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1455             inp->sctp_ep.pre_open_stream_count,
1456             inp->sctp_ep.port,
1457             (struct thread *)p
1458             );
1459         if (stcb == NULL) {
1460                 /* Gak! no memory */
1461                 goto out_now;
1462         }
1463         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1464                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1465                 /* Set the connected flag so we can queue data */
1466                 soisconnecting(so);
1467         }
1468         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1469         /* move to second address */
1470         switch (sa->sa_family) {
1471 #ifdef INET
1472         case AF_INET:
1473                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1474                 break;
1475 #endif
1476 #ifdef INET6
1477         case AF_INET6:
1478                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1479                 break;
1480 #endif
1481         default:
1482                 break;
1483         }
1484
1485         error = 0;
1486         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1487         /* Fill in the return id */
1488         if (error) {
1489                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1490                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1491                 goto out_now;
1492         }
1493         a_id = (sctp_assoc_t *)optval;
1494         *a_id = sctp_get_associd(stcb);
1495
1496         /* initialize authentication parameters for the assoc */
1497         sctp_initialize_auth_params(inp, stcb);
1498
1499         if (delay) {
1500                 /* doing delayed connection */
1501                 stcb->asoc.delayed_connection = 1;
1502                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1503         } else {
1504                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1505                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1506         }
1507         SCTP_TCB_UNLOCK(stcb);
1508 out_now:
1509         if (creat_lock_on) {
1510                 SCTP_ASOC_CREATE_UNLOCK(inp);
1511         }
1512         SCTP_INP_DECR_REF(inp);
1513         return (error);
1514 }
1515
1516 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1517         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1518             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1519                 SCTP_INP_RLOCK(inp); \
1520                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1521                 if (stcb) { \
1522                         SCTP_TCB_LOCK(stcb); \
1523                 } \
1524                 SCTP_INP_RUNLOCK(inp); \
1525         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1526                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1527                 if (stcb == NULL) { \
1528                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1529                         error = ENOENT; \
1530                         break; \
1531                 } \
1532         } else { \
1533                 stcb = NULL; \
1534         } \
1535 }
1536
1537
1538 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1539         if (size < sizeof(type)) { \
1540                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1541                 error = EINVAL; \
1542                 break; \
1543         } else { \
1544                 destp = (type *)srcp; \
1545         } \
1546 }
1547
1548 static int
1549 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1550     void *p)
1551 {
1552         struct sctp_inpcb *inp = NULL;
1553         int error, val = 0;
1554         struct sctp_tcb *stcb = NULL;
1555
1556         if (optval == NULL) {
1557                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1558                 return (EINVAL);
1559         }
1560         inp = (struct sctp_inpcb *)so->so_pcb;
1561         if (inp == NULL) {
1562                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1563                 return EINVAL;
1564         }
1565         error = 0;
1566
1567         switch (optname) {
1568         case SCTP_NODELAY:
1569         case SCTP_AUTOCLOSE:
1570         case SCTP_EXPLICIT_EOR:
1571         case SCTP_AUTO_ASCONF:
1572         case SCTP_DISABLE_FRAGMENTS:
1573         case SCTP_I_WANT_MAPPED_V4_ADDR:
1574         case SCTP_USE_EXT_RCVINFO:
1575                 SCTP_INP_RLOCK(inp);
1576                 switch (optname) {
1577                 case SCTP_DISABLE_FRAGMENTS:
1578                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1579                         break;
1580                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1581                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1582                         break;
1583                 case SCTP_AUTO_ASCONF:
1584                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1585                                 /* only valid for bound all sockets */
1586                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1587                         } else {
1588                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1589                                 error = EINVAL;
1590                                 goto flags_out;
1591                         }
1592                         break;
1593                 case SCTP_EXPLICIT_EOR:
1594                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1595                         break;
1596                 case SCTP_NODELAY:
1597                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1598                         break;
1599                 case SCTP_USE_EXT_RCVINFO:
1600                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1601                         break;
1602                 case SCTP_AUTOCLOSE:
1603                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1604                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1605                         else
1606                                 val = 0;
1607                         break;
1608
1609                 default:
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1611                         error = ENOPROTOOPT;
1612                 }               /* end switch (sopt->sopt_name) */
1613                 if (*optsize < sizeof(val)) {
1614                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1615                         error = EINVAL;
1616                 }
1617 flags_out:
1618                 SCTP_INP_RUNLOCK(inp);
1619                 if (error == 0) {
1620                         /* return the option value */
1621                         *(int *)optval = val;
1622                         *optsize = sizeof(val);
1623                 }
1624                 break;
1625         case SCTP_GET_PACKET_LOG:
1626                 {
1627 #ifdef  SCTP_PACKET_LOGGING
1628                         uint8_t *target;
1629                         int ret;
1630
1631                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1632                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1633                         *optsize = ret;
1634 #else
1635                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1636                         error = EOPNOTSUPP;
1637 #endif
1638                         break;
1639                 }
1640         case SCTP_REUSE_PORT:
1641                 {
1642                         uint32_t *value;
1643
1644                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1645                                 /* Can't do this for a 1-m socket */
1646                                 error = EINVAL;
1647                                 break;
1648                         }
1649                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1650                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1651                         *optsize = sizeof(uint32_t);
1652                         break;
1653                 }
1654         case SCTP_PARTIAL_DELIVERY_POINT:
1655                 {
1656                         uint32_t *value;
1657
1658                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1659                         *value = inp->partial_delivery_point;
1660                         *optsize = sizeof(uint32_t);
1661                         break;
1662                 }
1663         case SCTP_FRAGMENT_INTERLEAVE:
1664                 {
1665                         uint32_t *value;
1666
1667                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1668                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1669                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1670                                         *value = SCTP_FRAG_LEVEL_2;
1671                                 } else {
1672                                         *value = SCTP_FRAG_LEVEL_1;
1673                                 }
1674                         } else {
1675                                 *value = SCTP_FRAG_LEVEL_0;
1676                         }
1677                         *optsize = sizeof(uint32_t);
1678                         break;
1679                 }
1680         case SCTP_INTERLEAVING_SUPPORTED:
1681                 {
1682                         struct sctp_assoc_value *av;
1683
1684                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1685                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1686
1687                         if (stcb) {
1688                                 av->assoc_value = stcb->asoc.idata_supported;
1689                                 SCTP_TCB_UNLOCK(stcb);
1690                         } else {
1691                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1692                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1693                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1694                                         SCTP_INP_RLOCK(inp);
1695                                         if (inp->idata_supported) {
1696                                                 av->assoc_value = 1;
1697                                         } else {
1698                                                 av->assoc_value = 0;
1699                                         }
1700                                         SCTP_INP_RUNLOCK(inp);
1701                                 } else {
1702                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1703                                         error = EINVAL;
1704                                 }
1705                         }
1706                         if (error == 0) {
1707                                 *optsize = sizeof(struct sctp_assoc_value);
1708                         }
1709                         break;
1710                 }
1711         case SCTP_CMT_ON_OFF:
1712                 {
1713                         struct sctp_assoc_value *av;
1714
1715                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1716                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1717                         if (stcb) {
1718                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1719                                 SCTP_TCB_UNLOCK(stcb);
1720                         } else {
1721                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1722                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1723                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1724                                         SCTP_INP_RLOCK(inp);
1725                                         av->assoc_value = inp->sctp_cmt_on_off;
1726                                         SCTP_INP_RUNLOCK(inp);
1727                                 } else {
1728                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1729                                         error = EINVAL;
1730                                 }
1731                         }
1732                         if (error == 0) {
1733                                 *optsize = sizeof(struct sctp_assoc_value);
1734                         }
1735                         break;
1736                 }
1737         case SCTP_PLUGGABLE_CC:
1738                 {
1739                         struct sctp_assoc_value *av;
1740
1741                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1742                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1743                         if (stcb) {
1744                                 av->assoc_value = stcb->asoc.congestion_control_module;
1745                                 SCTP_TCB_UNLOCK(stcb);
1746                         } else {
1747                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1748                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1749                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1750                                         SCTP_INP_RLOCK(inp);
1751                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1752                                         SCTP_INP_RUNLOCK(inp);
1753                                 } else {
1754                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1755                                         error = EINVAL;
1756                                 }
1757                         }
1758                         if (error == 0) {
1759                                 *optsize = sizeof(struct sctp_assoc_value);
1760                         }
1761                         break;
1762                 }
1763         case SCTP_CC_OPTION:
1764                 {
1765                         struct sctp_cc_option *cc_opt;
1766
1767                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1768                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1769                         if (stcb == NULL) {
1770                                 error = EINVAL;
1771                         } else {
1772                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1773                                         error = ENOTSUP;
1774                                 } else {
1775                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1776                                         *optsize = sizeof(struct sctp_cc_option);
1777                                 }
1778                                 SCTP_TCB_UNLOCK(stcb);
1779                         }
1780                         break;
1781                 }
1782         case SCTP_PLUGGABLE_SS:
1783                 {
1784                         struct sctp_assoc_value *av;
1785
1786                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1787                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1788                         if (stcb) {
1789                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1790                                 SCTP_TCB_UNLOCK(stcb);
1791                         } else {
1792                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1793                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1794                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1795                                         SCTP_INP_RLOCK(inp);
1796                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1797                                         SCTP_INP_RUNLOCK(inp);
1798                                 } else {
1799                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1800                                         error = EINVAL;
1801                                 }
1802                         }
1803                         if (error == 0) {
1804                                 *optsize = sizeof(struct sctp_assoc_value);
1805                         }
1806                         break;
1807                 }
1808         case SCTP_SS_VALUE:
1809                 {
1810                         struct sctp_stream_value *av;
1811
1812                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1813                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1814                         if (stcb) {
1815                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1816                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1817                                     &av->stream_value) < 0)) {
1818                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1819                                         error = EINVAL;
1820                                 } else {
1821                                         *optsize = sizeof(struct sctp_stream_value);
1822                                 }
1823                                 SCTP_TCB_UNLOCK(stcb);
1824                         } else {
1825                                 /*
1826                                  * Can't get stream value without
1827                                  * association
1828                                  */
1829                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1830                                 error = EINVAL;
1831                         }
1832                         break;
1833                 }
1834         case SCTP_GET_ADDR_LEN:
1835                 {
1836                         struct sctp_assoc_value *av;
1837
1838                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1839                         error = EINVAL;
1840 #ifdef INET
1841                         if (av->assoc_value == AF_INET) {
1842                                 av->assoc_value = sizeof(struct sockaddr_in);
1843                                 error = 0;
1844                         }
1845 #endif
1846 #ifdef INET6
1847                         if (av->assoc_value == AF_INET6) {
1848                                 av->assoc_value = sizeof(struct sockaddr_in6);
1849                                 error = 0;
1850                         }
1851 #endif
1852                         if (error) {
1853                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1854                         } else {
1855                                 *optsize = sizeof(struct sctp_assoc_value);
1856                         }
1857                         break;
1858                 }
1859         case SCTP_GET_ASSOC_NUMBER:
1860                 {
1861                         uint32_t *value, cnt;
1862
1863                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1864                         SCTP_INP_RLOCK(inp);
1865                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1866                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1867                                 /* Can't do this for a 1-1 socket */
1868                                 error = EINVAL;
1869                                 SCTP_INP_RUNLOCK(inp);
1870                                 break;
1871                         }
1872                         cnt = 0;
1873                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1874                                 cnt++;
1875                         }
1876                         SCTP_INP_RUNLOCK(inp);
1877                         *value = cnt;
1878                         *optsize = sizeof(uint32_t);
1879                         break;
1880                 }
1881         case SCTP_GET_ASSOC_ID_LIST:
1882                 {
1883                         struct sctp_assoc_ids *ids;
1884                         uint32_t at;
1885                         size_t limit;
1886
1887                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1888                         SCTP_INP_RLOCK(inp);
1889                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1890                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1891                                 /* Can't do this for a 1-1 socket */
1892                                 error = EINVAL;
1893                                 SCTP_INP_RUNLOCK(inp);
1894                                 break;
1895                         }
1896                         at = 0;
1897                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1898                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1899                                 if (at < limit) {
1900                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1901                                         if (at == 0) {
1902                                                 error = EINVAL;
1903                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1904                                                 break;
1905                                         }
1906                                 } else {
1907                                         error = EINVAL;
1908                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1909                                         break;
1910                                 }
1911                         }
1912                         SCTP_INP_RUNLOCK(inp);
1913                         if (error == 0) {
1914                                 ids->gaids_number_of_ids = at;
1915                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1916                         }
1917                         break;
1918                 }
1919         case SCTP_CONTEXT:
1920                 {
1921                         struct sctp_assoc_value *av;
1922
1923                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1924                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1925
1926                         if (stcb) {
1927                                 av->assoc_value = stcb->asoc.context;
1928                                 SCTP_TCB_UNLOCK(stcb);
1929                         } else {
1930                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1931                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1932                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1933                                         SCTP_INP_RLOCK(inp);
1934                                         av->assoc_value = inp->sctp_context;
1935                                         SCTP_INP_RUNLOCK(inp);
1936                                 } else {
1937                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1938                                         error = EINVAL;
1939                                 }
1940                         }
1941                         if (error == 0) {
1942                                 *optsize = sizeof(struct sctp_assoc_value);
1943                         }
1944                         break;
1945                 }
1946         case SCTP_VRF_ID:
1947                 {
1948                         uint32_t *default_vrfid;
1949
1950                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1951                         *default_vrfid = inp->def_vrf_id;
1952                         *optsize = sizeof(uint32_t);
1953                         break;
1954                 }
1955         case SCTP_GET_ASOC_VRF:
1956                 {
1957                         struct sctp_assoc_value *id;
1958
1959                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1960                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1961                         if (stcb == NULL) {
1962                                 error = EINVAL;
1963                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1964                         } else {
1965                                 id->assoc_value = stcb->asoc.vrf_id;
1966                                 SCTP_TCB_UNLOCK(stcb);
1967                                 *optsize = sizeof(struct sctp_assoc_value);
1968                         }
1969                         break;
1970                 }
1971         case SCTP_GET_VRF_IDS:
1972                 {
1973                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1974                         error = EOPNOTSUPP;
1975                         break;
1976                 }
1977         case SCTP_GET_NONCE_VALUES:
1978                 {
1979                         struct sctp_get_nonce_values *gnv;
1980
1981                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1982                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1983
1984                         if (stcb) {
1985                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1986                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1987                                 SCTP_TCB_UNLOCK(stcb);
1988                                 *optsize = sizeof(struct sctp_get_nonce_values);
1989                         } else {
1990                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1991                                 error = ENOTCONN;
1992                         }
1993                         break;
1994                 }
1995         case SCTP_DELAYED_SACK:
1996                 {
1997                         struct sctp_sack_info *sack;
1998
1999                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2000                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2001                         if (stcb) {
2002                                 sack->sack_delay = stcb->asoc.delayed_ack;
2003                                 sack->sack_freq = stcb->asoc.sack_freq;
2004                                 SCTP_TCB_UNLOCK(stcb);
2005                         } else {
2006                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2007                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2008                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2009                                         SCTP_INP_RLOCK(inp);
2010                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2011                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2012                                         SCTP_INP_RUNLOCK(inp);
2013                                 } else {
2014                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2015                                         error = EINVAL;
2016                                 }
2017                         }
2018                         if (error == 0) {
2019                                 *optsize = sizeof(struct sctp_sack_info);
2020                         }
2021                         break;
2022                 }
2023         case SCTP_GET_SNDBUF_USE:
2024                 {
2025                         struct sctp_sockstat *ss;
2026
2027                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2028                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2029
2030                         if (stcb) {
2031                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2032                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2033                                     stcb->asoc.size_on_all_streams);
2034                                 SCTP_TCB_UNLOCK(stcb);
2035                                 *optsize = sizeof(struct sctp_sockstat);
2036                         } else {
2037                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2038                                 error = ENOTCONN;
2039                         }
2040                         break;
2041                 }
2042         case SCTP_MAX_BURST:
2043                 {
2044                         struct sctp_assoc_value *av;
2045
2046                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2047                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2048
2049                         if (stcb) {
2050                                 av->assoc_value = stcb->asoc.max_burst;
2051                                 SCTP_TCB_UNLOCK(stcb);
2052                         } else {
2053                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2054                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2055                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2056                                         SCTP_INP_RLOCK(inp);
2057                                         av->assoc_value = inp->sctp_ep.max_burst;
2058                                         SCTP_INP_RUNLOCK(inp);
2059                                 } else {
2060                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2061                                         error = EINVAL;
2062                                 }
2063                         }
2064                         if (error == 0) {
2065                                 *optsize = sizeof(struct sctp_assoc_value);
2066                         }
2067                         break;
2068                 }
2069         case SCTP_MAXSEG:
2070                 {
2071                         struct sctp_assoc_value *av;
2072                         int ovh;
2073
2074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2076
2077                         if (stcb) {
2078                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2079                                 SCTP_TCB_UNLOCK(stcb);
2080                         } else {
2081                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2082                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2083                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2084                                         SCTP_INP_RLOCK(inp);
2085                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2086                                                 ovh = SCTP_MED_OVERHEAD;
2087                                         } else {
2088                                                 ovh = SCTP_MED_V4_OVERHEAD;
2089                                         }
2090                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2091                                                 av->assoc_value = 0;
2092                                         else
2093                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2094                                         SCTP_INP_RUNLOCK(inp);
2095                                 } else {
2096                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2097                                         error = EINVAL;
2098                                 }
2099                         }
2100                         if (error == 0) {
2101                                 *optsize = sizeof(struct sctp_assoc_value);
2102                         }
2103                         break;
2104                 }
2105         case SCTP_GET_STAT_LOG:
2106                 error = sctp_fill_stat_log(optval, optsize);
2107                 break;
2108         case SCTP_EVENTS:
2109                 {
2110                         struct sctp_event_subscribe *events;
2111
2112                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2113                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2114                         SCTP_INP_RLOCK(inp);
2115                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2116                                 events->sctp_data_io_event = 1;
2117
2118                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2119                                 events->sctp_association_event = 1;
2120
2121                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2122                                 events->sctp_address_event = 1;
2123
2124                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2125                                 events->sctp_send_failure_event = 1;
2126
2127                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2128                                 events->sctp_peer_error_event = 1;
2129
2130                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2131                                 events->sctp_shutdown_event = 1;
2132
2133                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2134                                 events->sctp_partial_delivery_event = 1;
2135
2136                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2137                                 events->sctp_adaptation_layer_event = 1;
2138
2139                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2140                                 events->sctp_authentication_event = 1;
2141
2142                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2143                                 events->sctp_sender_dry_event = 1;
2144
2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2146                                 events->sctp_stream_reset_event = 1;
2147                         SCTP_INP_RUNLOCK(inp);
2148                         *optsize = sizeof(struct sctp_event_subscribe);
2149                         break;
2150                 }
2151         case SCTP_ADAPTATION_LAYER:
2152                 {
2153                         uint32_t *value;
2154
2155                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2156
2157                         SCTP_INP_RLOCK(inp);
2158                         *value = inp->sctp_ep.adaptation_layer_indicator;
2159                         SCTP_INP_RUNLOCK(inp);
2160                         *optsize = sizeof(uint32_t);
2161                         break;
2162                 }
2163         case SCTP_SET_INITIAL_DBG_SEQ:
2164                 {
2165                         uint32_t *value;
2166
2167                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2168                         SCTP_INP_RLOCK(inp);
2169                         *value = inp->sctp_ep.initial_sequence_debug;
2170                         SCTP_INP_RUNLOCK(inp);
2171                         *optsize = sizeof(uint32_t);
2172                         break;
2173                 }
2174         case SCTP_GET_LOCAL_ADDR_SIZE:
2175                 {
2176                         uint32_t *value;
2177
2178                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2179                         SCTP_INP_RLOCK(inp);
2180                         *value = sctp_count_max_addresses(inp);
2181                         SCTP_INP_RUNLOCK(inp);
2182                         *optsize = sizeof(uint32_t);
2183                         break;
2184                 }
2185         case SCTP_GET_REMOTE_ADDR_SIZE:
2186                 {
2187                         uint32_t *value;
2188                         size_t size;
2189                         struct sctp_nets *net;
2190
2191                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2192                         /* FIXME MT: change to sctp_assoc_value? */
2193                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2194
2195                         if (stcb) {
2196                                 size = 0;
2197                                 /* Count the sizes */
2198                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2199                                         switch (net->ro._l_addr.sa.sa_family) {
2200 #ifdef INET
2201                                         case AF_INET:
2202 #ifdef INET6
2203                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2204                                                         size += sizeof(struct sockaddr_in6);
2205                                                 } else {
2206                                                         size += sizeof(struct sockaddr_in);
2207                                                 }
2208 #else
2209                                                 size += sizeof(struct sockaddr_in);
2210 #endif
2211                                                 break;
2212 #endif
2213 #ifdef INET6
2214                                         case AF_INET6:
2215                                                 size += sizeof(struct sockaddr_in6);
2216                                                 break;
2217 #endif
2218                                         default:
2219                                                 break;
2220                                         }
2221                                 }
2222                                 SCTP_TCB_UNLOCK(stcb);
2223                                 *value = (uint32_t)size;
2224                                 *optsize = sizeof(uint32_t);
2225                         } else {
2226                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2227                                 error = ENOTCONN;
2228                         }
2229                         break;
2230                 }
2231         case SCTP_GET_PEER_ADDRESSES:
2232                 /*
2233                  * Get the address information, an array is passed in to
2234                  * fill up we pack it.
2235                  */
2236                 {
2237                         size_t cpsz, left;
2238                         struct sockaddr_storage *sas;
2239                         struct sctp_nets *net;
2240                         struct sctp_getaddresses *saddr;
2241
2242                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2243                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2244
2245                         if (stcb) {
2246                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2247                                 *optsize = sizeof(struct sctp_getaddresses);
2248                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2249
2250                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2251                                         switch (net->ro._l_addr.sa.sa_family) {
2252 #ifdef INET
2253                                         case AF_INET:
2254 #ifdef INET6
2255                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2256                                                         cpsz = sizeof(struct sockaddr_in6);
2257                                                 } else {
2258                                                         cpsz = sizeof(struct sockaddr_in);
2259                                                 }
2260 #else
2261                                                 cpsz = sizeof(struct sockaddr_in);
2262 #endif
2263                                                 break;
2264 #endif
2265 #ifdef INET6
2266                                         case AF_INET6:
2267                                                 cpsz = sizeof(struct sockaddr_in6);
2268                                                 break;
2269 #endif
2270                                         default:
2271                                                 cpsz = 0;
2272                                                 break;
2273                                         }
2274                                         if (cpsz == 0) {
2275                                                 break;
2276                                         }
2277                                         if (left < cpsz) {
2278                                                 /* not enough room. */
2279                                                 break;
2280                                         }
2281 #if defined(INET) && defined(INET6)
2282                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2283                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2284                                                 /* Must map the address */
2285                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2286                                                     (struct sockaddr_in6 *)sas);
2287                                         } else {
2288                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2289                                         }
2290 #else
2291                                         memcpy(sas, &net->ro._l_addr, cpsz);
2292 #endif
2293                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2294
2295                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2296                                         left -= cpsz;
2297                                         *optsize += cpsz;
2298                                 }
2299                                 SCTP_TCB_UNLOCK(stcb);
2300                         } else {
2301                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2302                                 error = ENOENT;
2303                         }
2304                         break;
2305                 }
2306         case SCTP_GET_LOCAL_ADDRESSES:
2307                 {
2308                         size_t limit, actual;
2309                         struct sockaddr_storage *sas;
2310                         struct sctp_getaddresses *saddr;
2311
2312                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2313                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2314
2315                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2316                         limit = *optsize - sizeof(sctp_assoc_t);
2317                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2318                         if (stcb) {
2319                                 SCTP_TCB_UNLOCK(stcb);
2320                         }
2321                         *optsize = sizeof(struct sockaddr_storage) + actual;
2322                         break;
2323                 }
2324         case SCTP_PEER_ADDR_PARAMS:
2325                 {
2326                         struct sctp_paddrparams *paddrp;
2327                         struct sctp_nets *net;
2328                         struct sockaddr *addr;
2329 #if defined(INET) && defined(INET6)
2330                         struct sockaddr_in sin_store;
2331 #endif
2332
2333                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2334                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2335
2336 #if defined(INET) && defined(INET6)
2337                         if (paddrp->spp_address.ss_family == AF_INET6) {
2338                                 struct sockaddr_in6 *sin6;
2339
2340                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2341                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2342                                         in6_sin6_2_sin(&sin_store, sin6);
2343                                         addr = (struct sockaddr *)&sin_store;
2344                                 } else {
2345                                         addr = (struct sockaddr *)&paddrp->spp_address;
2346                                 }
2347                         } else {
2348                                 addr = (struct sockaddr *)&paddrp->spp_address;
2349                         }
2350 #else
2351                         addr = (struct sockaddr *)&paddrp->spp_address;
2352 #endif
2353                         if (stcb != NULL) {
2354                                 net = sctp_findnet(stcb, addr);
2355                         } else {
2356                                 /*
2357                                  * We increment here since
2358                                  * sctp_findassociation_ep_addr() wil do a
2359                                  * decrement if it finds the stcb as long as
2360                                  * the locked tcb (last argument) is NOT a
2361                                  * TCB.. aka NULL.
2362                                  */
2363                                 net = NULL;
2364                                 SCTP_INP_INCR_REF(inp);
2365                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2366                                 if (stcb == NULL) {
2367                                         SCTP_INP_DECR_REF(inp);
2368                                 }
2369                         }
2370                         if ((stcb != NULL) && (net == NULL)) {
2371 #ifdef INET
2372                                 if (addr->sa_family == AF_INET) {
2373                                         struct sockaddr_in *sin;
2374
2375                                         sin = (struct sockaddr_in *)addr;
2376                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2377                                                 error = EINVAL;
2378                                                 SCTP_TCB_UNLOCK(stcb);
2379                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2380                                                 break;
2381                                         }
2382                                 } else
2383 #endif
2384 #ifdef INET6
2385                                 if (addr->sa_family == AF_INET6) {
2386                                         struct sockaddr_in6 *sin6;
2387
2388                                         sin6 = (struct sockaddr_in6 *)addr;
2389                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2390                                                 error = EINVAL;
2391                                                 SCTP_TCB_UNLOCK(stcb);
2392                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2393                                                 break;
2394                                         }
2395                                 } else
2396 #endif
2397                                 {
2398                                         error = EAFNOSUPPORT;
2399                                         SCTP_TCB_UNLOCK(stcb);
2400                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2401                                         break;
2402                                 }
2403                         }
2404                         if (stcb != NULL) {
2405                                 /* Applies to the specific association */
2406                                 paddrp->spp_flags = 0;
2407                                 if (net != NULL) {
2408                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2409                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2410                                         paddrp->spp_pathmtu = net->mtu;
2411                                         switch (net->ro._l_addr.sa.sa_family) {
2412 #ifdef INET
2413                                         case AF_INET:
2414                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2415                                                 break;
2416 #endif
2417 #ifdef INET6
2418                                         case AF_INET6:
2419                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2420                                                 break;
2421 #endif
2422                                         default:
2423                                                 break;
2424                                         }
2425                                         /* get flags for HB */
2426                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2427                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2428                                         } else {
2429                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2430                                         }
2431                                         /* get flags for PMTU */
2432                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2433                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2434                                         } else {
2435                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2436                                         }
2437                                         if (net->dscp & 0x01) {
2438                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2439                                                 paddrp->spp_flags |= SPP_DSCP;
2440                                         }
2441 #ifdef INET6
2442                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2443                                             (net->flowlabel & 0x80000000)) {
2444                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2445                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2446                                         }
2447 #endif
2448                                 } else {
2449                                         /*
2450                                          * No destination so return default
2451                                          * value
2452                                          */
2453                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2454                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2455                                         if (stcb->asoc.default_dscp & 0x01) {
2456                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2457                                                 paddrp->spp_flags |= SPP_DSCP;
2458                                         }
2459 #ifdef INET6
2460                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2461                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2462                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2463                                         }
2464 #endif
2465                                         /* default settings should be these */
2466                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2467                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2468                                         } else {
2469                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2470                                         }
2471                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2472                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2473                                         } else {
2474                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2475                                         }
2476                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2477                                 }
2478                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2479                                 SCTP_TCB_UNLOCK(stcb);
2480                         } else {
2481                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2482                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2483                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2484                                         /* Use endpoint defaults */
2485                                         SCTP_INP_RLOCK(inp);
2486                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2487                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2488                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2489                                         /* get inp's default */
2490                                         if (inp->sctp_ep.default_dscp & 0x01) {
2491                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2492                                                 paddrp->spp_flags |= SPP_DSCP;
2493                                         }
2494 #ifdef INET6
2495                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2496                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2497                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2498                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2499                                         }
2500 #endif
2501                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2502
2503                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2504                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2505                                         } else {
2506                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2507                                         }
2508                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2509                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2510                                         } else {
2511                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2512                                         }
2513                                         SCTP_INP_RUNLOCK(inp);
2514                                 } else {
2515                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2516                                         error = EINVAL;
2517                                 }
2518                         }
2519                         if (error == 0) {
2520                                 *optsize = sizeof(struct sctp_paddrparams);
2521                         }
2522                         break;
2523                 }
2524         case SCTP_GET_PEER_ADDR_INFO:
2525                 {
2526                         struct sctp_paddrinfo *paddri;
2527                         struct sctp_nets *net;
2528                         struct sockaddr *addr;
2529 #if defined(INET) && defined(INET6)
2530                         struct sockaddr_in sin_store;
2531 #endif
2532
2533                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2534                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2535
2536 #if defined(INET) && defined(INET6)
2537                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2538                                 struct sockaddr_in6 *sin6;
2539
2540                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2541                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2542                                         in6_sin6_2_sin(&sin_store, sin6);
2543                                         addr = (struct sockaddr *)&sin_store;
2544                                 } else {
2545                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2546                                 }
2547                         } else {
2548                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2549                         }
2550 #else
2551                         addr = (struct sockaddr *)&paddri->spinfo_address;
2552 #endif
2553                         if (stcb != NULL) {
2554                                 net = sctp_findnet(stcb, addr);
2555                         } else {
2556                                 /*
2557                                  * We increment here since
2558                                  * sctp_findassociation_ep_addr() wil do a
2559                                  * decrement if it finds the stcb as long as
2560                                  * the locked tcb (last argument) is NOT a
2561                                  * TCB.. aka NULL.
2562                                  */
2563                                 net = NULL;
2564                                 SCTP_INP_INCR_REF(inp);
2565                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2566                                 if (stcb == NULL) {
2567                                         SCTP_INP_DECR_REF(inp);
2568                                 }
2569                         }
2570
2571                         if ((stcb != NULL) && (net != NULL)) {
2572                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2573                                         /* It's unconfirmed */
2574                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2575                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2576                                         /* It's active */
2577                                         paddri->spinfo_state = SCTP_ACTIVE;
2578                                 } else {
2579                                         /* It's inactive */
2580                                         paddri->spinfo_state = SCTP_INACTIVE;
2581                                 }
2582                                 paddri->spinfo_cwnd = net->cwnd;
2583                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2584                                 paddri->spinfo_rto = net->RTO;
2585                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2586                                 paddri->spinfo_mtu = net->mtu;
2587                                 switch (addr->sa_family) {
2588 #if defined(INET)
2589                                 case AF_INET:
2590                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2591                                         break;
2592 #endif
2593 #if defined(INET6)
2594                                 case AF_INET6:
2595                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2596                                         break;
2597 #endif
2598                                 default:
2599                                         break;
2600                                 }
2601                                 SCTP_TCB_UNLOCK(stcb);
2602                                 *optsize = sizeof(struct sctp_paddrinfo);
2603                         } else {
2604                                 if (stcb != NULL) {
2605                                         SCTP_TCB_UNLOCK(stcb);
2606                                 }
2607                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2608                                 error = ENOENT;
2609                         }
2610                         break;
2611                 }
2612         case SCTP_PCB_STATUS:
2613                 {
2614                         struct sctp_pcbinfo *spcb;
2615
2616                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2617                         sctp_fill_pcbinfo(spcb);
2618                         *optsize = sizeof(struct sctp_pcbinfo);
2619                         break;
2620                 }
2621         case SCTP_STATUS:
2622                 {
2623                         struct sctp_nets *net;
2624                         struct sctp_status *sstat;
2625
2626                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2627                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2628
2629                         if (stcb == NULL) {
2630                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2631                                 error = EINVAL;
2632                                 break;
2633                         }
2634                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2635                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2636                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2637                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2638                         /*
2639                          * We can't include chunks that have been passed to
2640                          * the socket layer. Only things in queue.
2641                          */
2642                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2643                             stcb->asoc.cnt_on_all_streams);
2644
2645
2646                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2647                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2648                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2649                         memcpy(&sstat->sstat_primary.spinfo_address,
2650                             &stcb->asoc.primary_destination->ro._l_addr,
2651                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2652                         net = stcb->asoc.primary_destination;
2653                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2654                         /*
2655                          * Again the user can get info from sctp_constants.h
2656                          * for what the state of the network is.
2657                          */
2658                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2659                                 /* It's unconfirmed */
2660                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2661                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2662                                 /* It's active */
2663                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2664                         } else {
2665                                 /* It's inactive */
2666                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2667                         }
2668                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2669                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2670                         sstat->sstat_primary.spinfo_rto = net->RTO;
2671                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2672                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2673 #if defined(INET)
2674                         case AF_INET:
2675                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2676                                 break;
2677 #endif
2678 #if defined(INET6)
2679                         case AF_INET6:
2680                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2681                                 break;
2682 #endif
2683                         default:
2684                                 break;
2685                         }
2686                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2687                         SCTP_TCB_UNLOCK(stcb);
2688                         *optsize = sizeof(struct sctp_status);
2689                         break;
2690                 }
2691         case SCTP_RTOINFO:
2692                 {
2693                         struct sctp_rtoinfo *srto;
2694
2695                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2696                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2697
2698                         if (stcb) {
2699                                 srto->srto_initial = stcb->asoc.initial_rto;
2700                                 srto->srto_max = stcb->asoc.maxrto;
2701                                 srto->srto_min = stcb->asoc.minrto;
2702                                 SCTP_TCB_UNLOCK(stcb);
2703                         } else {
2704                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2705                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2706                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2707                                         SCTP_INP_RLOCK(inp);
2708                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2709                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2710                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2711                                         SCTP_INP_RUNLOCK(inp);
2712                                 } else {
2713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2714                                         error = EINVAL;
2715                                 }
2716                         }
2717                         if (error == 0) {
2718                                 *optsize = sizeof(struct sctp_rtoinfo);
2719                         }
2720                         break;
2721                 }
2722         case SCTP_TIMEOUTS:
2723                 {
2724                         struct sctp_timeouts *stimo;
2725
2726                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2727                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2728
2729                         if (stcb) {
2730                                 stimo->stimo_init = stcb->asoc.timoinit;
2731                                 stimo->stimo_data = stcb->asoc.timodata;
2732                                 stimo->stimo_sack = stcb->asoc.timosack;
2733                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2734                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2735                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2736                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2737                                 SCTP_TCB_UNLOCK(stcb);
2738                                 *optsize = sizeof(struct sctp_timeouts);
2739                         } else {
2740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2741                                 error = EINVAL;
2742                         }
2743                         break;
2744                 }
2745         case SCTP_ASSOCINFO:
2746                 {
2747                         struct sctp_assocparams *sasoc;
2748
2749                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2750                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2751
2752                         if (stcb) {
2753                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2754                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2755                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2756                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2757                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2758                                 SCTP_TCB_UNLOCK(stcb);
2759                         } else {
2760                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2761                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2762                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2763                                         SCTP_INP_RLOCK(inp);
2764                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2765                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2766                                         sasoc->sasoc_number_peer_destinations = 0;
2767                                         sasoc->sasoc_peer_rwnd = 0;
2768                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2769                                         SCTP_INP_RUNLOCK(inp);
2770                                 } else {
2771                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2772                                         error = EINVAL;
2773                                 }
2774                         }
2775                         if (error == 0) {
2776                                 *optsize = sizeof(struct sctp_assocparams);
2777                         }
2778                         break;
2779                 }
2780         case SCTP_DEFAULT_SEND_PARAM:
2781                 {
2782                         struct sctp_sndrcvinfo *s_info;
2783
2784                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2785                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2786
2787                         if (stcb) {
2788                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2789                                 SCTP_TCB_UNLOCK(stcb);
2790                         } else {
2791                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2792                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2793                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2794                                         SCTP_INP_RLOCK(inp);
2795                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2796                                         SCTP_INP_RUNLOCK(inp);
2797                                 } else {
2798                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2799                                         error = EINVAL;
2800                                 }
2801                         }
2802                         if (error == 0) {
2803                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2804                         }
2805                         break;
2806                 }
2807         case SCTP_INITMSG:
2808                 {
2809                         struct sctp_initmsg *sinit;
2810
2811                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2812                         SCTP_INP_RLOCK(inp);
2813                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2814                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2815                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2816                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2817                         SCTP_INP_RUNLOCK(inp);
2818                         *optsize = sizeof(struct sctp_initmsg);
2819                         break;
2820                 }
2821         case SCTP_PRIMARY_ADDR:
2822                 /* we allow a "get" operation on this */
2823                 {
2824                         struct sctp_setprim *ssp;
2825
2826                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2827                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2828
2829                         if (stcb) {
2830                                 union sctp_sockstore *addr;
2831
2832                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2833                                 switch (addr->sa.sa_family) {
2834 #ifdef INET
2835                                 case AF_INET:
2836 #ifdef INET6
2837                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2838                                                 in6_sin_2_v4mapsin6(&addr->sin,
2839                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2840                                         } else {
2841                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2842                                         }
2843 #else
2844                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2845 #endif
2846                                         break;
2847 #endif
2848 #ifdef INET6
2849                                 case AF_INET6:
2850                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2851                                         break;
2852 #endif
2853                                 default:
2854                                         break;
2855                                 }
2856                                 SCTP_TCB_UNLOCK(stcb);
2857                                 *optsize = sizeof(struct sctp_setprim);
2858                         } else {
2859                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2860                                 error = EINVAL;
2861                         }
2862                         break;
2863                 }
2864         case SCTP_HMAC_IDENT:
2865                 {
2866                         struct sctp_hmacalgo *shmac;
2867                         sctp_hmaclist_t *hmaclist;
2868                         uint32_t size;
2869                         int i;
2870
2871                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2872
2873                         SCTP_INP_RLOCK(inp);
2874                         hmaclist = inp->sctp_ep.local_hmacs;
2875                         if (hmaclist == NULL) {
2876                                 /* no HMACs to return */
2877                                 *optsize = sizeof(*shmac);
2878                                 SCTP_INP_RUNLOCK(inp);
2879                                 break;
2880                         }
2881                         /* is there room for all of the hmac ids? */
2882                         size = sizeof(*shmac) + (hmaclist->num_algo *
2883                             sizeof(shmac->shmac_idents[0]));
2884                         if ((size_t)(*optsize) < size) {
2885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2886                                 error = EINVAL;
2887                                 SCTP_INP_RUNLOCK(inp);
2888                                 break;
2889                         }
2890                         /* copy in the list */
2891                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2892                         for (i = 0; i < hmaclist->num_algo; i++) {
2893                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2894                         }
2895                         SCTP_INP_RUNLOCK(inp);
2896                         *optsize = size;
2897                         break;
2898                 }
2899         case SCTP_AUTH_ACTIVE_KEY:
2900                 {
2901                         struct sctp_authkeyid *scact;
2902
2903                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2904                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2905
2906                         if (stcb) {
2907                                 /* get the active key on the assoc */
2908                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2909                                 SCTP_TCB_UNLOCK(stcb);
2910                         } else {
2911                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2912                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2913                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2914                                         /* get the endpoint active key */
2915                                         SCTP_INP_RLOCK(inp);
2916                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2917                                         SCTP_INP_RUNLOCK(inp);
2918                                 } else {
2919                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2920                                         error = EINVAL;
2921                                 }
2922                         }
2923                         if (error == 0) {
2924                                 *optsize = sizeof(struct sctp_authkeyid);
2925                         }
2926                         break;
2927                 }
2928         case SCTP_LOCAL_AUTH_CHUNKS:
2929                 {
2930                         struct sctp_authchunks *sac;
2931                         sctp_auth_chklist_t *chklist = NULL;
2932                         size_t size = 0;
2933
2934                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2935                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2936
2937                         if (stcb) {
2938                                 /* get off the assoc */
2939                                 chklist = stcb->asoc.local_auth_chunks;
2940                                 /* is there enough space? */
2941                                 size = sctp_auth_get_chklist_size(chklist);
2942                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2943                                         error = EINVAL;
2944                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2945                                 } else {
2946                                         /* copy in the chunks */
2947                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2948                                         sac->gauth_number_of_chunks = (uint32_t)size;
2949                                         *optsize = sizeof(struct sctp_authchunks) + size;
2950                                 }
2951                                 SCTP_TCB_UNLOCK(stcb);
2952                         } else {
2953                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2954                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2955                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2956                                         /* get off the endpoint */
2957                                         SCTP_INP_RLOCK(inp);
2958                                         chklist = inp->sctp_ep.local_auth_chunks;
2959                                         /* is there enough space? */
2960                                         size = sctp_auth_get_chklist_size(chklist);
2961                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2962                                                 error = EINVAL;
2963                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2964                                         } else {
2965                                                 /* copy in the chunks */
2966                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2967                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2968                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2969                                         }
2970                                         SCTP_INP_RUNLOCK(inp);
2971                                 } else {
2972                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2973                                         error = EINVAL;
2974                                 }
2975                         }
2976                         break;
2977                 }
2978         case SCTP_PEER_AUTH_CHUNKS:
2979                 {
2980                         struct sctp_authchunks *sac;
2981                         sctp_auth_chklist_t *chklist = NULL;
2982                         size_t size = 0;
2983
2984                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2985                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2986
2987                         if (stcb) {
2988                                 /* get off the assoc */
2989                                 chklist = stcb->asoc.peer_auth_chunks;
2990                                 /* is there enough space? */
2991                                 size = sctp_auth_get_chklist_size(chklist);
2992                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2993                                         error = EINVAL;
2994                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2995                                 } else {
2996                                         /* copy in the chunks */
2997                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2998                                         sac->gauth_number_of_chunks = (uint32_t)size;
2999                                         *optsize = sizeof(struct sctp_authchunks) + size;
3000                                 }
3001                                 SCTP_TCB_UNLOCK(stcb);
3002                         } else {
3003                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3004                                 error = ENOENT;
3005                         }
3006                         break;
3007                 }
3008         case SCTP_EVENT:
3009                 {
3010                         struct sctp_event *event;
3011                         uint32_t event_type;
3012
3013                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3014                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3015
3016                         switch (event->se_type) {
3017                         case SCTP_ASSOC_CHANGE:
3018                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3019                                 break;
3020                         case SCTP_PEER_ADDR_CHANGE:
3021                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3022                                 break;
3023                         case SCTP_REMOTE_ERROR:
3024                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3025                                 break;
3026                         case SCTP_SEND_FAILED:
3027                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3028                                 break;
3029                         case SCTP_SHUTDOWN_EVENT:
3030                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3031                                 break;
3032                         case SCTP_ADAPTATION_INDICATION:
3033                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3034                                 break;
3035                         case SCTP_PARTIAL_DELIVERY_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3037                                 break;
3038                         case SCTP_AUTHENTICATION_EVENT:
3039                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3040                                 break;
3041                         case SCTP_STREAM_RESET_EVENT:
3042                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3043                                 break;
3044                         case SCTP_SENDER_DRY_EVENT:
3045                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3046                                 break;
3047                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3048                                 event_type = 0;
3049                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3050                                 error = ENOTSUP;
3051                                 break;
3052                         case SCTP_ASSOC_RESET_EVENT:
3053                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3054                                 break;
3055                         case SCTP_STREAM_CHANGE_EVENT:
3056                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3057                                 break;
3058                         case SCTP_SEND_FAILED_EVENT:
3059                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3060                                 break;
3061                         default:
3062                                 event_type = 0;
3063                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3064                                 error = EINVAL;
3065                                 break;
3066                         }
3067                         if (event_type > 0) {
3068                                 if (stcb) {
3069                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3070                                 } else {
3071                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3072                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3073                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3074                                                 SCTP_INP_RLOCK(inp);
3075                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3076                                                 SCTP_INP_RUNLOCK(inp);
3077                                         } else {
3078                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3079                                                 error = EINVAL;
3080                                         }
3081                                 }
3082                         }
3083                         if (stcb != NULL) {
3084                                 SCTP_TCB_UNLOCK(stcb);
3085                         }
3086                         if (error == 0) {
3087                                 *optsize = sizeof(struct sctp_event);
3088                         }
3089                         break;
3090                 }
3091         case SCTP_RECVRCVINFO:
3092                 {
3093                         int onoff;
3094
3095                         if (*optsize < sizeof(int)) {
3096                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3097                                 error = EINVAL;
3098                         } else {
3099                                 SCTP_INP_RLOCK(inp);
3100                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3101                                 SCTP_INP_RUNLOCK(inp);
3102                         }
3103                         if (error == 0) {
3104                                 /* return the option value */
3105                                 *(int *)optval = onoff;
3106                                 *optsize = sizeof(int);
3107                         }
3108                         break;
3109                 }
3110         case SCTP_RECVNXTINFO:
3111                 {
3112                         int onoff;
3113
3114                         if (*optsize < sizeof(int)) {
3115                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3116                                 error = EINVAL;
3117                         } else {
3118                                 SCTP_INP_RLOCK(inp);
3119                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3120                                 SCTP_INP_RUNLOCK(inp);
3121                         }
3122                         if (error == 0) {
3123                                 /* return the option value */
3124                                 *(int *)optval = onoff;
3125                                 *optsize = sizeof(int);
3126                         }
3127                         break;
3128                 }
3129         case SCTP_DEFAULT_SNDINFO:
3130                 {
3131                         struct sctp_sndinfo *info;
3132
3133                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3134                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3135
3136                         if (stcb) {
3137                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3138                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3139                                 info->snd_flags &= 0xfff0;
3140                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3141                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3142                                 SCTP_TCB_UNLOCK(stcb);
3143                         } else {
3144                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3145                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3146                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3147                                         SCTP_INP_RLOCK(inp);
3148                                         info->snd_sid = inp->def_send.sinfo_stream;
3149                                         info->snd_flags = inp->def_send.sinfo_flags;
3150                                         info->snd_flags &= 0xfff0;
3151                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3152                                         info->snd_context = inp->def_send.sinfo_context;
3153                                         SCTP_INP_RUNLOCK(inp);
3154                                 } else {
3155                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3156                                         error = EINVAL;
3157                                 }
3158                         }
3159                         if (error == 0) {
3160                                 *optsize = sizeof(struct sctp_sndinfo);
3161                         }
3162                         break;
3163                 }
3164         case SCTP_DEFAULT_PRINFO:
3165                 {
3166                         struct sctp_default_prinfo *info;
3167
3168                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3169                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3170
3171                         if (stcb) {
3172                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3173                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3174                                 SCTP_TCB_UNLOCK(stcb);
3175                         } else {
3176                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3177                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3178                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3179                                         SCTP_INP_RLOCK(inp);
3180                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3181                                         info->pr_value = inp->def_send.sinfo_timetolive;
3182                                         SCTP_INP_RUNLOCK(inp);
3183                                 } else {
3184                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3185                                         error = EINVAL;
3186                                 }
3187                         }
3188                         if (error == 0) {
3189                                 *optsize = sizeof(struct sctp_default_prinfo);
3190                         }
3191                         break;
3192                 }
3193         case SCTP_PEER_ADDR_THLDS:
3194                 {
3195                         struct sctp_paddrthlds *thlds;
3196                         struct sctp_nets *net;
3197                         struct sockaddr *addr;
3198 #if defined(INET) && defined(INET6)
3199                         struct sockaddr_in sin_store;
3200 #endif
3201
3202                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3203                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3204
3205 #if defined(INET) && defined(INET6)
3206                         if (thlds->spt_address.ss_family == AF_INET6) {
3207                                 struct sockaddr_in6 *sin6;
3208
3209                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3210                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3211                                         in6_sin6_2_sin(&sin_store, sin6);
3212                                         addr = (struct sockaddr *)&sin_store;
3213                                 } else {
3214                                         addr = (struct sockaddr *)&thlds->spt_address;
3215                                 }
3216                         } else {
3217                                 addr = (struct sockaddr *)&thlds->spt_address;
3218                         }
3219 #else
3220                         addr = (struct sockaddr *)&thlds->spt_address;
3221 #endif
3222                         if (stcb != NULL) {
3223                                 net = sctp_findnet(stcb, addr);
3224                         } else {
3225                                 /*
3226                                  * We increment here since
3227                                  * sctp_findassociation_ep_addr() wil do a
3228                                  * decrement if it finds the stcb as long as
3229                                  * the locked tcb (last argument) is NOT a
3230                                  * TCB.. aka NULL.
3231                                  */
3232                                 net = NULL;
3233                                 SCTP_INP_INCR_REF(inp);
3234                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3235                                 if (stcb == NULL) {
3236                                         SCTP_INP_DECR_REF(inp);
3237                                 }
3238                         }
3239                         if ((stcb != NULL) && (net == NULL)) {
3240 #ifdef INET
3241                                 if (addr->sa_family == AF_INET) {
3242                                         struct sockaddr_in *sin;
3243
3244                                         sin = (struct sockaddr_in *)addr;
3245                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3246                                                 error = EINVAL;
3247                                                 SCTP_TCB_UNLOCK(stcb);
3248                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3249                                                 break;
3250                                         }
3251                                 } else
3252 #endif
3253 #ifdef INET6
3254                                 if (addr->sa_family == AF_INET6) {
3255                                         struct sockaddr_in6 *sin6;
3256
3257                                         sin6 = (struct sockaddr_in6 *)addr;
3258                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3259                                                 error = EINVAL;
3260                                                 SCTP_TCB_UNLOCK(stcb);
3261                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3262                                                 break;
3263                                         }
3264                                 } else
3265 #endif
3266                                 {
3267                                         error = EAFNOSUPPORT;
3268                                         SCTP_TCB_UNLOCK(stcb);
3269                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3270                                         break;
3271                                 }
3272                         }
3273                         if (stcb != NULL) {
3274                                 if (net != NULL) {
3275                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3276                                         thlds->spt_pathpfthld = net->pf_threshold;
3277                                         thlds->spt_pathcpthld = 0xffff;
3278                                 } else {
3279                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3280                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3281                                         thlds->spt_pathcpthld = 0xffff;
3282                                 }
3283                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3284                                 SCTP_TCB_UNLOCK(stcb);
3285                         } else {
3286                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3287                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3288                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3289                                         /* Use endpoint defaults */
3290                                         SCTP_INP_RLOCK(inp);
3291                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3292                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3293                                         thlds->spt_pathcpthld = 0xffff;
3294                                         SCTP_INP_RUNLOCK(inp);
3295                                 } else {
3296                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3297                                         error = EINVAL;
3298                                 }
3299                         }
3300                         if (error == 0) {
3301                                 *optsize = sizeof(struct sctp_paddrthlds);
3302                         }
3303                         break;
3304                 }
3305         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3306                 {
3307                         struct sctp_udpencaps *encaps;
3308                         struct sctp_nets *net;
3309                         struct sockaddr *addr;
3310 #if defined(INET) && defined(INET6)
3311                         struct sockaddr_in sin_store;
3312 #endif
3313
3314                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3315                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3316
3317 #if defined(INET) && defined(INET6)
3318                         if (encaps->sue_address.ss_family == AF_INET6) {
3319                                 struct sockaddr_in6 *sin6;
3320
3321                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3322                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3323                                         in6_sin6_2_sin(&sin_store, sin6);
3324                                         addr = (struct sockaddr *)&sin_store;
3325                                 } else {
3326                                         addr = (struct sockaddr *)&encaps->sue_address;
3327                                 }
3328                         } else {
3329                                 addr = (struct sockaddr *)&encaps->sue_address;
3330                         }
3331 #else
3332                         addr = (struct sockaddr *)&encaps->sue_address;
3333 #endif
3334                         if (stcb) {
3335                                 net = sctp_findnet(stcb, addr);
3336                         } else {
3337                                 /*
3338                                  * We increment here since
3339                                  * sctp_findassociation_ep_addr() wil do a
3340                                  * decrement if it finds the stcb as long as
3341                                  * the locked tcb (last argument) is NOT a
3342                                  * TCB.. aka NULL.
3343                                  */
3344                                 net = NULL;
3345                                 SCTP_INP_INCR_REF(inp);
3346                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3347                                 if (stcb == NULL) {
3348                                         SCTP_INP_DECR_REF(inp);
3349                                 }
3350                         }
3351                         if ((stcb != NULL) && (net == NULL)) {
3352 #ifdef INET
3353                                 if (addr->sa_family == AF_INET) {
3354                                         struct sockaddr_in *sin;
3355
3356                                         sin = (struct sockaddr_in *)addr;
3357                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3358                                                 error = EINVAL;
3359                                                 SCTP_TCB_UNLOCK(stcb);
3360                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3361                                                 break;
3362                                         }
3363                                 } else
3364 #endif
3365 #ifdef INET6
3366                                 if (addr->sa_family == AF_INET6) {
3367                                         struct sockaddr_in6 *sin6;
3368
3369                                         sin6 = (struct sockaddr_in6 *)addr;
3370                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3371                                                 error = EINVAL;
3372                                                 SCTP_TCB_UNLOCK(stcb);
3373                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3374                                                 break;
3375                                         }
3376                                 } else
3377 #endif
3378                                 {
3379                                         error = EAFNOSUPPORT;
3380                                         SCTP_TCB_UNLOCK(stcb);
3381                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3382                                         break;
3383                                 }
3384                         }
3385                         if (stcb != NULL) {
3386                                 if (net) {
3387                                         encaps->sue_port = net->port;
3388                                 } else {
3389                                         encaps->sue_port = stcb->asoc.port;
3390                                 }
3391                                 SCTP_TCB_UNLOCK(stcb);
3392                         } else {
3393                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3394                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3395                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3396                                         SCTP_INP_RLOCK(inp);
3397                                         encaps->sue_port = inp->sctp_ep.port;
3398                                         SCTP_INP_RUNLOCK(inp);
3399                                 } else {
3400                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3401                                         error = EINVAL;
3402                                 }
3403                         }
3404                         if (error == 0) {
3405                                 *optsize = sizeof(struct sctp_udpencaps);
3406                         }
3407                         break;
3408                 }
3409         case SCTP_ECN_SUPPORTED:
3410                 {
3411                         struct sctp_assoc_value *av;
3412
3413                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3414                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3415
3416                         if (stcb) {
3417                                 av->assoc_value = stcb->asoc.ecn_supported;
3418                                 SCTP_TCB_UNLOCK(stcb);
3419                         } else {
3420                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3421                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3422                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3423                                         SCTP_INP_RLOCK(inp);
3424                                         av->assoc_value = inp->ecn_supported;
3425                                         SCTP_INP_RUNLOCK(inp);
3426                                 } else {
3427                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3428                                         error = EINVAL;
3429                                 }
3430                         }
3431                         if (error == 0) {
3432                                 *optsize = sizeof(struct sctp_assoc_value);
3433                         }
3434                         break;
3435                 }
3436         case SCTP_PR_SUPPORTED:
3437                 {
3438                         struct sctp_assoc_value *av;
3439
3440                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3441                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3442
3443                         if (stcb) {
3444                                 av->assoc_value = stcb->asoc.prsctp_supported;
3445                                 SCTP_TCB_UNLOCK(stcb);
3446                         } else {
3447                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3448                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3449                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3450                                         SCTP_INP_RLOCK(inp);
3451                                         av->assoc_value = inp->prsctp_supported;
3452                                         SCTP_INP_RUNLOCK(inp);
3453                                 } else {
3454                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3455                                         error = EINVAL;
3456                                 }
3457                         }
3458                         if (error == 0) {
3459                                 *optsize = sizeof(struct sctp_assoc_value);
3460                         }
3461                         break;
3462                 }
3463         case SCTP_AUTH_SUPPORTED:
3464                 {
3465                         struct sctp_assoc_value *av;
3466
3467                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3468                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3469
3470                         if (stcb) {
3471                                 av->assoc_value = stcb->asoc.auth_supported;
3472                                 SCTP_TCB_UNLOCK(stcb);
3473                         } else {
3474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3476                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3477                                         SCTP_INP_RLOCK(inp);
3478                                         av->assoc_value = inp->auth_supported;
3479                                         SCTP_INP_RUNLOCK(inp);
3480                                 } else {
3481                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3482                                         error = EINVAL;
3483                                 }
3484                         }
3485                         if (error == 0) {
3486                                 *optsize = sizeof(struct sctp_assoc_value);
3487                         }
3488                         break;
3489                 }
3490         case SCTP_ASCONF_SUPPORTED:
3491                 {
3492                         struct sctp_assoc_value *av;
3493
3494                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3495                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3496
3497                         if (stcb) {
3498                                 av->assoc_value = stcb->asoc.asconf_supported;
3499                                 SCTP_TCB_UNLOCK(stcb);
3500                         } else {
3501                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3502                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3503                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3504                                         SCTP_INP_RLOCK(inp);
3505                                         av->assoc_value = inp->asconf_supported;
3506                                         SCTP_INP_RUNLOCK(inp);
3507                                 } else {
3508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3509                                         error = EINVAL;
3510                                 }
3511                         }
3512                         if (error == 0) {
3513                                 *optsize = sizeof(struct sctp_assoc_value);
3514                         }
3515                         break;
3516                 }
3517         case SCTP_RECONFIG_SUPPORTED:
3518                 {
3519                         struct sctp_assoc_value *av;
3520
3521                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3522                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3523
3524                         if (stcb) {
3525                                 av->assoc_value = stcb->asoc.reconfig_supported;
3526                                 SCTP_TCB_UNLOCK(stcb);
3527                         } else {
3528                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3529                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3530                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3531                                         SCTP_INP_RLOCK(inp);
3532                                         av->assoc_value = inp->reconfig_supported;
3533                                         SCTP_INP_RUNLOCK(inp);
3534                                 } else {
3535                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3536                                         error = EINVAL;
3537                                 }
3538                         }
3539                         if (error == 0) {
3540                                 *optsize = sizeof(struct sctp_assoc_value);
3541                         }
3542                         break;
3543                 }
3544         case SCTP_NRSACK_SUPPORTED:
3545                 {
3546                         struct sctp_assoc_value *av;
3547
3548                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3549                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3550
3551                         if (stcb) {
3552                                 av->assoc_value = stcb->asoc.nrsack_supported;
3553                                 SCTP_TCB_UNLOCK(stcb);
3554                         } else {
3555                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3556                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3557                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3558                                         SCTP_INP_RLOCK(inp);
3559                                         av->assoc_value = inp->nrsack_supported;
3560                                         SCTP_INP_RUNLOCK(inp);
3561                                 } else {
3562                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3563                                         error = EINVAL;
3564                                 }
3565                         }
3566                         if (error == 0) {
3567                                 *optsize = sizeof(struct sctp_assoc_value);
3568                         }
3569                         break;
3570                 }
3571         case SCTP_PKTDROP_SUPPORTED:
3572                 {
3573                         struct sctp_assoc_value *av;
3574
3575                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3576                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3577
3578                         if (stcb) {
3579                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3580                                 SCTP_TCB_UNLOCK(stcb);
3581                         } else {
3582                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3583                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3584                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3585                                         SCTP_INP_RLOCK(inp);
3586                                         av->assoc_value = inp->pktdrop_supported;
3587                                         SCTP_INP_RUNLOCK(inp);
3588                                 } else {
3589                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3590                                         error = EINVAL;
3591                                 }
3592                         }
3593                         if (error == 0) {
3594                                 *optsize = sizeof(struct sctp_assoc_value);
3595                         }
3596                         break;
3597                 }
3598         case SCTP_ENABLE_STREAM_RESET:
3599                 {
3600                         struct sctp_assoc_value *av;
3601
3602                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3603                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3604
3605                         if (stcb) {
3606                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3607                                 SCTP_TCB_UNLOCK(stcb);
3608                         } else {
3609                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3610                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3611                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3612                                         SCTP_INP_RLOCK(inp);
3613                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3614                                         SCTP_INP_RUNLOCK(inp);
3615                                 } else {
3616                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3617                                         error = EINVAL;
3618                                 }
3619                         }
3620                         if (error == 0) {
3621                                 *optsize = sizeof(struct sctp_assoc_value);
3622                         }
3623                         break;
3624                 }
3625         case SCTP_PR_STREAM_STATUS:
3626                 {
3627                         struct sctp_prstatus *sprstat;
3628                         uint16_t sid;
3629                         uint16_t policy;
3630
3631                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3632                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3633
3634                         sid = sprstat->sprstat_sid;
3635                         policy = sprstat->sprstat_policy;
3636 #if defined(SCTP_DETAILED_STR_STATS)
3637                         if ((stcb != NULL) &&
3638                             (sid < stcb->asoc.streamoutcnt) &&
3639                             (policy != SCTP_PR_SCTP_NONE) &&
3640                             ((policy <= SCTP_PR_SCTP_MAX) ||
3641                             (policy == SCTP_PR_SCTP_ALL))) {
3642                                 if (policy == SCTP_PR_SCTP_ALL) {
3643                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3644                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3645                                 } else {
3646                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3647                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3648                                 }
3649 #else
3650                         if ((stcb != NULL) &&
3651                             (sid < stcb->asoc.streamoutcnt) &&
3652                             (policy == SCTP_PR_SCTP_ALL)) {
3653                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3654                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3655 #endif
3656                         } else {
3657                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3658                                 error = EINVAL;
3659                         }
3660                         if (stcb != NULL) {
3661                                 SCTP_TCB_UNLOCK(stcb);
3662                         }
3663                         if (error == 0) {
3664                                 *optsize = sizeof(struct sctp_prstatus);
3665                         }
3666                         break;
3667                 }
3668         case SCTP_PR_ASSOC_STATUS:
3669                 {
3670                         struct sctp_prstatus *sprstat;
3671                         uint16_t policy;
3672
3673                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3674                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3675
3676                         policy = sprstat->sprstat_policy;
3677                         if ((stcb != NULL) &&
3678                             (policy != SCTP_PR_SCTP_NONE) &&
3679                             ((policy <= SCTP_PR_SCTP_MAX) ||
3680                             (policy == SCTP_PR_SCTP_ALL))) {
3681                                 if (policy == SCTP_PR_SCTP_ALL) {
3682                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3683                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3684                                 } else {
3685                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3686                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3687                                 }
3688                         } else {
3689                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3690                                 error = EINVAL;
3691                         }
3692                         if (stcb != NULL) {
3693                                 SCTP_TCB_UNLOCK(stcb);
3694                         }
3695                         if (error == 0) {
3696                                 *optsize = sizeof(struct sctp_prstatus);
3697                         }
3698                         break;
3699                 }
3700         case SCTP_MAX_CWND:
3701                 {
3702                         struct sctp_assoc_value *av;
3703
3704                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3705                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3706
3707                         if (stcb) {
3708                                 av->assoc_value = stcb->asoc.max_cwnd;
3709                                 SCTP_TCB_UNLOCK(stcb);
3710                         } else {
3711                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3712                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3713                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3714                                         SCTP_INP_RLOCK(inp);
3715                                         av->assoc_value = inp->max_cwnd;
3716                                         SCTP_INP_RUNLOCK(inp);
3717                                 } else {
3718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3719                                         error = EINVAL;
3720                                 }
3721                         }
3722                         if (error == 0) {
3723                                 *optsize = sizeof(struct sctp_assoc_value);
3724                         }
3725                         break;
3726                 }
3727         default:
3728                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3729                 error = ENOPROTOOPT;
3730                 break;
3731         }                       /* end switch (sopt->sopt_name) */
3732         if (error) {
3733                 *optsize = 0;
3734         }
3735         return (error);
3736 }
3737
3738 static int
3739 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3740     void *p)
3741 {
3742         int error, set_opt;
3743         uint32_t *mopt;
3744         struct sctp_tcb *stcb = NULL;
3745         struct sctp_inpcb *inp = NULL;
3746         uint32_t vrf_id;
3747
3748         if (optval == NULL) {
3749                 SCTP_PRINTF("optval is NULL\n");
3750                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3751                 return (EINVAL);
3752         }
3753         inp = (struct sctp_inpcb *)so->so_pcb;
3754         if (inp == NULL) {
3755                 SCTP_PRINTF("inp is NULL?\n");
3756                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3757                 return (EINVAL);
3758         }
3759         vrf_id = inp->def_vrf_id;
3760
3761         error = 0;
3762         switch (optname) {
3763         case SCTP_NODELAY:
3764         case SCTP_AUTOCLOSE:
3765         case SCTP_AUTO_ASCONF:
3766         case SCTP_EXPLICIT_EOR:
3767         case SCTP_DISABLE_FRAGMENTS:
3768         case SCTP_USE_EXT_RCVINFO:
3769         case SCTP_I_WANT_MAPPED_V4_ADDR:
3770                 /* copy in the option value */
3771                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3772                 set_opt = 0;
3773                 if (error)
3774                         break;
3775                 switch (optname) {
3776                 case SCTP_DISABLE_FRAGMENTS:
3777                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3778                         break;
3779                 case SCTP_AUTO_ASCONF:
3780                         /*
3781                          * NOTE: we don't really support this flag
3782                          */
3783                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3784                                 /* only valid for bound all sockets */
3785                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3786                                     (*mopt != 0)) {
3787                                         /* forbidden by admin */
3788                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3789                                         return (EPERM);
3790                                 }
3791                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3792                         } else {
3793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3794                                 return (EINVAL);
3795                         }
3796                         break;
3797                 case SCTP_EXPLICIT_EOR:
3798                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3799                         break;
3800                 case SCTP_USE_EXT_RCVINFO:
3801                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3802                         break;
3803                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3804                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3805                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3806                         } else {
3807                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3808                                 return (EINVAL);
3809                         }
3810                         break;
3811                 case SCTP_NODELAY:
3812                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3813                         break;
3814                 case SCTP_AUTOCLOSE:
3815                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3816                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3818                                 return (EINVAL);
3819                         }
3820                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3821                         /*
3822                          * The value is in ticks. Note this does not effect
3823                          * old associations, only new ones.
3824                          */
3825                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3826                         break;
3827                 }
3828                 SCTP_INP_WLOCK(inp);
3829                 if (*mopt != 0) {
3830                         sctp_feature_on(inp, set_opt);
3831                 } else {
3832                         sctp_feature_off(inp, set_opt);
3833                 }
3834                 SCTP_INP_WUNLOCK(inp);
3835                 break;
3836         case SCTP_REUSE_PORT:
3837                 {
3838                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3839                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3840                                 /* Can't set it after we are bound */
3841                                 error = EINVAL;
3842                                 break;
3843                         }
3844                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3845                                 /* Can't do this for a 1-m socket */
3846                                 error = EINVAL;
3847                                 break;
3848                         }
3849                         if (optval)
3850                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3851                         else
3852                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3853                         break;
3854                 }
3855         case SCTP_PARTIAL_DELIVERY_POINT:
3856                 {
3857                         uint32_t *value;
3858
3859                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3860                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3862                                 error = EINVAL;
3863                                 break;
3864                         }
3865                         inp->partial_delivery_point = *value;
3866                         break;
3867                 }
3868         case SCTP_FRAGMENT_INTERLEAVE:
3869                 /* not yet until we re-write sctp_recvmsg() */
3870                 {
3871                         uint32_t *level;
3872
3873                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3874                         if (*level == SCTP_FRAG_LEVEL_2) {
3875                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3876                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3877                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3878                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3879                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3880                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3882                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3883
3884                         } else {
3885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3886                                 error = EINVAL;
3887                         }
3888                         break;
3889                 }
3890         case SCTP_INTERLEAVING_SUPPORTED:
3891                 {
3892                         struct sctp_assoc_value *av;
3893
3894                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3895                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3896
3897                         if (stcb) {
3898                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3899                                 error = EINVAL;
3900                                 SCTP_TCB_UNLOCK(stcb);
3901                         } else {
3902                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3903                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3904                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3905                                         SCTP_INP_WLOCK(inp);
3906                                         if (av->assoc_value == 0) {
3907                                                 inp->idata_supported = 0;
3908                                         } else {
3909                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3910                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3911                                                         inp->idata_supported = 1;
3912                                                 } else {
3913                                                         /*
3914                                                          * Must have Frag
3915                                                          * interleave and
3916                                                          * stream interleave
3917                                                          * on
3918                                                          */
3919                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3920                                                         error = EINVAL;
3921                                                 }
3922                                         }
3923                                         SCTP_INP_WUNLOCK(inp);
3924                                 } else {
3925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3926                                         error = EINVAL;
3927                                 }
3928                         }
3929                         break;
3930                 }
3931         case SCTP_CMT_ON_OFF:
3932                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3933                         struct sctp_assoc_value *av;
3934
3935                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3936                         if (av->assoc_value > SCTP_CMT_MAX) {
3937                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3938                                 error = EINVAL;
3939                                 break;
3940                         }
3941                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3942                         if (stcb) {
3943                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3944                                 SCTP_TCB_UNLOCK(stcb);
3945                         } else {
3946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3948                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3949                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3950                                         SCTP_INP_WLOCK(inp);
3951                                         inp->sctp_cmt_on_off = av->assoc_value;
3952                                         SCTP_INP_WUNLOCK(inp);
3953                                 }
3954                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3955                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3956                                         SCTP_INP_RLOCK(inp);
3957                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3958                                                 SCTP_TCB_LOCK(stcb);
3959                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3960                                                 SCTP_TCB_UNLOCK(stcb);
3961                                         }
3962                                         SCTP_INP_RUNLOCK(inp);
3963                                 }
3964                         }
3965                 } else {
3966                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3967                         error = ENOPROTOOPT;
3968                 }
3969                 break;
3970         case SCTP_PLUGGABLE_CC:
3971                 {
3972                         struct sctp_assoc_value *av;
3973                         struct sctp_nets *net;
3974
3975                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3976                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3977                             (av->assoc_value != SCTP_CC_HSTCP) &&
3978                             (av->assoc_value != SCTP_CC_HTCP) &&
3979                             (av->assoc_value != SCTP_CC_RTCC)) {
3980                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3981                                 error = EINVAL;
3982                                 break;
3983                         }
3984                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3985                         if (stcb) {
3986                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3987                                 stcb->asoc.congestion_control_module = av->assoc_value;
3988                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3989                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3990                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3991                                         }
3992                                 }
3993                                 SCTP_TCB_UNLOCK(stcb);
3994                         } else {
3995                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3996                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3997                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3998                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3999                                         SCTP_INP_WLOCK(inp);
4000                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4001                                         SCTP_INP_WUNLOCK(inp);
4002                                 }
4003                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4004                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4005                                         SCTP_INP_RLOCK(inp);
4006                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4007                                                 SCTP_TCB_LOCK(stcb);
4008                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4009                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4010                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4011                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4012                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4013                                                         }
4014                                                 }
4015                                                 SCTP_TCB_UNLOCK(stcb);
4016                                         }
4017                                         SCTP_INP_RUNLOCK(inp);
4018                                 }
4019                         }
4020                         break;
4021                 }
4022         case SCTP_CC_OPTION:
4023                 {
4024                         struct sctp_cc_option *cc_opt;
4025
4026                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4027                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4028                         if (stcb == NULL) {
4029                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4030                                         SCTP_INP_RLOCK(inp);
4031                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4032                                                 SCTP_TCB_LOCK(stcb);
4033                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4034                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4035                                                 }
4036                                                 SCTP_TCB_UNLOCK(stcb);
4037                                         }
4038                                         SCTP_INP_RUNLOCK(inp);
4039                                 } else {
4040                                         error = EINVAL;
4041                                 }
4042                         } else {
4043                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4044                                         error = ENOTSUP;
4045                                 } else {
4046                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4047                                             cc_opt);
4048                                 }
4049                                 SCTP_TCB_UNLOCK(stcb);
4050                         }
4051                         break;
4052                 }
4053         case SCTP_PLUGGABLE_SS:
4054                 {
4055                         struct sctp_assoc_value *av;
4056
4057                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4058                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4059                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4060                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4061                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4062                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4063                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4064                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4065                                 error = EINVAL;
4066                                 break;
4067                         }
4068                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4069                         if (stcb) {
4070                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4071                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4072                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4073                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4074                                 SCTP_TCB_UNLOCK(stcb);
4075                         } else {
4076                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4077                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4078                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4079                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4080                                         SCTP_INP_WLOCK(inp);
4081                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4082                                         SCTP_INP_WUNLOCK(inp);
4083                                 }
4084                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4085                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4086                                         SCTP_INP_RLOCK(inp);
4087                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4088                                                 SCTP_TCB_LOCK(stcb);
4089                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4090                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4091                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4092                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4093                                                 SCTP_TCB_UNLOCK(stcb);
4094                                         }
4095                                         SCTP_INP_RUNLOCK(inp);
4096                                 }
4097                         }
4098                         break;
4099                 }
4100         case SCTP_SS_VALUE:
4101                 {
4102                         struct sctp_stream_value *av;
4103
4104                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4105                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4106                         if (stcb) {
4107                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4108                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4109                                     av->stream_value) < 0)) {
4110                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4111                                         error = EINVAL;
4112                                 }
4113                                 SCTP_TCB_UNLOCK(stcb);
4114                         } else {
4115                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4116                                         SCTP_INP_RLOCK(inp);
4117                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4118                                                 SCTP_TCB_LOCK(stcb);
4119                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4120                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4121                                                             &stcb->asoc,
4122                                                             &stcb->asoc.strmout[av->stream_id],
4123                                                             av->stream_value);
4124                                                 }
4125                                                 SCTP_TCB_UNLOCK(stcb);
4126                                         }
4127                                         SCTP_INP_RUNLOCK(inp);
4128                                 } else {
4129                                         /*
4130                                          * Can't set stream value without
4131                                          * association
4132                                          */
4133                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4134                                         error = EINVAL;
4135                                 }
4136                         }
4137                         break;
4138                 }
4139         case SCTP_CLR_STAT_LOG:
4140                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4141                 error = EOPNOTSUPP;
4142                 break;
4143         case SCTP_CONTEXT:
4144                 {
4145                         struct sctp_assoc_value *av;
4146
4147                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4148                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4149
4150                         if (stcb) {
4151                                 stcb->asoc.context = av->assoc_value;
4152                                 SCTP_TCB_UNLOCK(stcb);
4153                         } else {
4154                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4155                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4156                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4157                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4158                                         SCTP_INP_WLOCK(inp);
4159                                         inp->sctp_context = av->assoc_value;
4160                                         SCTP_INP_WUNLOCK(inp);
4161                                 }
4162                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4163                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4164                                         SCTP_INP_RLOCK(inp);
4165                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4166                                                 SCTP_TCB_LOCK(stcb);
4167                                                 stcb->asoc.context = av->assoc_value;
4168                                                 SCTP_TCB_UNLOCK(stcb);
4169                                         }
4170                                         SCTP_INP_RUNLOCK(inp);
4171                                 }
4172                         }
4173                         break;
4174                 }
4175         case SCTP_VRF_ID:
4176                 {
4177                         uint32_t *default_vrfid;
4178
4179                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4180                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4181                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4182                                 error = EINVAL;
4183                                 break;
4184                         }
4185                         inp->def_vrf_id = *default_vrfid;
4186                         break;
4187                 }
4188         case SCTP_DEL_VRF_ID:
4189                 {
4190                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4191                         error = EOPNOTSUPP;
4192                         break;
4193                 }
4194         case SCTP_ADD_VRF_ID:
4195                 {
4196                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4197                         error = EOPNOTSUPP;
4198                         break;
4199                 }
4200         case SCTP_DELAYED_SACK:
4201                 {
4202                         struct sctp_sack_info *sack;
4203
4204                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4205                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4206                         if (sack->sack_delay) {
4207                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4208                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4209                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4210                                         sack->sack_delay = TICKS_TO_MSEC(1);
4211                                 }
4212                         }
4213                         if (stcb) {
4214                                 if (sack->sack_delay) {
4215                                         stcb->asoc.delayed_ack = sack->sack_delay;
4216                                 }
4217                                 if (sack->sack_freq) {
4218                                         stcb->asoc.sack_freq = sack->sack_freq;
4219                                 }
4220                                 SCTP_TCB_UNLOCK(stcb);
4221                         } else {
4222                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4223                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4224                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4225                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4226                                         SCTP_INP_WLOCK(inp);
4227                                         if (sack->sack_delay) {
4228                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4229                                         }
4230                                         if (sack->sack_freq) {
4231                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4232                                         }
4233                                         SCTP_INP_WUNLOCK(inp);
4234                                 }
4235                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4236                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4237                                         SCTP_INP_RLOCK(inp);
4238                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4239                                                 SCTP_TCB_LOCK(stcb);
4240                                                 if (sack->sack_delay) {
4241                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4242                                                 }
4243                                                 if (sack->sack_freq) {
4244                                                         stcb->asoc.sack_freq = sack->sack_freq;
4245                                                 }
4246                                                 SCTP_TCB_UNLOCK(stcb);
4247                                         }
4248                                         SCTP_INP_RUNLOCK(inp);
4249                                 }
4250                         }
4251                         break;
4252                 }
4253         case SCTP_AUTH_CHUNK:
4254                 {
4255                         struct sctp_authchunk *sauth;
4256
4257                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4258
4259                         SCTP_INP_WLOCK(inp);
4260                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4261                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4262                                 error = EINVAL;
4263                         }
4264                         SCTP_INP_WUNLOCK(inp);
4265                         break;
4266                 }
4267         case SCTP_AUTH_KEY:
4268                 {
4269                         struct sctp_authkey *sca;
4270                         struct sctp_keyhead *shared_keys;
4271                         sctp_sharedkey_t *shared_key;
4272                         sctp_key_t *key = NULL;
4273                         size_t size;
4274
4275                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4276                         if (sca->sca_keylength == 0) {
4277                                 size = optsize - sizeof(struct sctp_authkey);
4278                         } else {
4279                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4280                                         size = sca->sca_keylength;
4281                                 } else {
4282                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4283                                         error = EINVAL;
4284                                         break;
4285                                 }
4286                         }
4287                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4288
4289                         if (stcb) {
4290                                 shared_keys = &stcb->asoc.shared_keys;
4291                                 /* clear the cached keys for this key id */
4292                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4293                                 /*
4294                                  * create the new shared key and
4295                                  * insert/replace it
4296                                  */
4297                                 if (size > 0) {
4298                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4299                                         if (key == NULL) {
4300                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4301                                                 error = ENOMEM;
4302                                                 SCTP_TCB_UNLOCK(stcb);
4303                                                 break;
4304                                         }
4305                                 }
4306                                 shared_key = sctp_alloc_sharedkey();
4307                                 if (shared_key == NULL) {
4308                                         sctp_free_key(key);
4309                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4310                                         error = ENOMEM;
4311                                         SCTP_TCB_UNLOCK(stcb);
4312                                         break;
4313                                 }
4314                                 shared_key->key = key;
4315                                 shared_key->keyid = sca->sca_keynumber;
4316                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4317                                 SCTP_TCB_UNLOCK(stcb);
4318                         } else {
4319                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4320                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4321                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4322                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4323                                         SCTP_INP_WLOCK(inp);
4324                                         shared_keys = &inp->sctp_ep.shared_keys;
4325                                         /*
4326                                          * clear the cached keys on all
4327                                          * assocs for this key id
4328                                          */
4329                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4330                                         /*
4331                                          * create the new shared key and
4332                                          * insert/replace it
4333                                          */
4334                                         if (size > 0) {
4335                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4336                                                 if (key == NULL) {
4337                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4338                                                         error = ENOMEM;
4339                                                         SCTP_INP_WUNLOCK(inp);
4340                                                         break;
4341                                                 }
4342                                         }
4343                                         shared_key = sctp_alloc_sharedkey();
4344                                         if (shared_key == NULL) {
4345                                                 sctp_free_key(key);
4346                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4347                                                 error = ENOMEM;
4348                                                 SCTP_INP_WUNLOCK(inp);
4349                                                 break;
4350                                         }
4351                                         shared_key->key = key;
4352                                         shared_key->keyid = sca->sca_keynumber;
4353                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4354                                         SCTP_INP_WUNLOCK(inp);
4355                                 }
4356                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4357                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4358                                         SCTP_INP_RLOCK(inp);
4359                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4360                                                 SCTP_TCB_LOCK(stcb);
4361                                                 shared_keys = &stcb->asoc.shared_keys;
4362                                                 /*
4363                                                  * clear the cached keys for
4364                                                  * this key id
4365                                                  */
4366                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4367                                                 /*
4368                                                  * create the new shared key
4369                                                  * and insert/replace it
4370                                                  */
4371                                                 if (size > 0) {
4372                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4373                                                         if (key == NULL) {
4374                                                                 SCTP_TCB_UNLOCK(stcb);
4375                                                                 continue;
4376                                                         }
4377                                                 }
4378                                                 shared_key = sctp_alloc_sharedkey();
4379                                                 if (shared_key == NULL) {
4380                                                         sctp_free_key(key);
4381                                                         SCTP_TCB_UNLOCK(stcb);
4382                                                         continue;
4383                                                 }
4384                                                 shared_key->key = key;
4385                                                 shared_key->keyid = sca->sca_keynumber;
4386                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4387                                                 SCTP_TCB_UNLOCK(stcb);
4388                                         }
4389                                         SCTP_INP_RUNLOCK(inp);
4390                                 }
4391                         }
4392                         break;
4393                 }
4394         case SCTP_HMAC_IDENT:
4395                 {
4396                         struct sctp_hmacalgo *shmac;
4397                         sctp_hmaclist_t *hmaclist;
4398                         uint16_t hmacid;
4399                         uint32_t i;
4400
4401                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4402                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4403                             (shmac->shmac_number_of_idents > 0xffff)) {
4404                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4405                                 error = EINVAL;
4406                                 break;
4407                         }
4408                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4409                         if (hmaclist == NULL) {
4410                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4411                                 error = ENOMEM;
4412                                 break;
4413                         }
4414                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4415                                 hmacid = shmac->shmac_idents[i];
4416                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4417                                          /* invalid HMACs were found */ ;
4418                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4419                                         error = EINVAL;
4420                                         sctp_free_hmaclist(hmaclist);
4421                                         goto sctp_set_hmac_done;
4422                                 }
4423                         }
4424                         for (i = 0; i < hmaclist->num_algo; i++) {
4425                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4426                                         /* already in list */
4427                                         break;
4428                                 }
4429                         }
4430                         if (i == hmaclist->num_algo) {
4431                                 /* not found in list */
4432                                 sctp_free_hmaclist(hmaclist);
4433                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4434                                 error = EINVAL;
4435                                 break;
4436                         }
4437                         /* set it on the endpoint */
4438                         SCTP_INP_WLOCK(inp);
4439                         if (inp->sctp_ep.local_hmacs)
4440                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4441                         inp->sctp_ep.local_hmacs = hmaclist;
4442                         SCTP_INP_WUNLOCK(inp);
4443         sctp_set_hmac_done:
4444                         break;
4445                 }
4446         case SCTP_AUTH_ACTIVE_KEY:
4447                 {
4448                         struct sctp_authkeyid *scact;
4449
4450                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4451                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4452
4453                         /* set the active key on the right place */
4454                         if (stcb) {
4455                                 /* set the active key on the assoc */
4456                                 if (sctp_auth_setactivekey(stcb,
4457                                     scact->scact_keynumber)) {
4458                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4459                                             SCTP_FROM_SCTP_USRREQ,
4460                                             EINVAL);
4461                                         error = EINVAL;
4462                                 }
4463                                 SCTP_TCB_UNLOCK(stcb);
4464                         } else {
4465                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4466                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4467                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4468                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4469                                         SCTP_INP_WLOCK(inp);
4470                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4471                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4472                                                 error = EINVAL;
4473                                         }
4474                                         SCTP_INP_WUNLOCK(inp);
4475                                 }
4476                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4477                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4478                                         SCTP_INP_RLOCK(inp);
4479                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4480                                                 SCTP_TCB_LOCK(stcb);
4481                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4482                                                 SCTP_TCB_UNLOCK(stcb);
4483                                         }
4484                                         SCTP_INP_RUNLOCK(inp);
4485                                 }
4486                         }
4487                         break;
4488                 }
4489         case SCTP_AUTH_DELETE_KEY:
4490                 {
4491                         struct sctp_authkeyid *scdel;
4492
4493                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4494                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4495
4496                         /* delete the key from the right place */
4497                         if (stcb) {
4498                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4499                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4500                                         error = EINVAL;
4501                                 }
4502                                 SCTP_TCB_UNLOCK(stcb);
4503                         } else {
4504                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4505                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4506                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4507                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4508                                         SCTP_INP_WLOCK(inp);
4509                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4510                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4511                                                 error = EINVAL;
4512                                         }
4513                                         SCTP_INP_WUNLOCK(inp);
4514                                 }
4515                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4516                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4517                                         SCTP_INP_RLOCK(inp);
4518                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4519                                                 SCTP_TCB_LOCK(stcb);
4520                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4521                                                 SCTP_TCB_UNLOCK(stcb);
4522                                         }
4523                                         SCTP_INP_RUNLOCK(inp);
4524                                 }
4525                         }
4526                         break;
4527                 }
4528         case SCTP_AUTH_DEACTIVATE_KEY:
4529                 {
4530                         struct sctp_authkeyid *keyid;
4531
4532                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4533                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4534
4535                         /* deactivate the key from the right place */
4536                         if (stcb) {
4537                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4539                                         error = EINVAL;
4540                                 }
4541                                 SCTP_TCB_UNLOCK(stcb);
4542                         } else {
4543                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4544                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4545                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4546                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4547                                         SCTP_INP_WLOCK(inp);
4548                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4549                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4550                                                 error = EINVAL;
4551                                         }
4552                                         SCTP_INP_WUNLOCK(inp);
4553                                 }
4554                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4555                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4556                                         SCTP_INP_RLOCK(inp);
4557                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4558                                                 SCTP_TCB_LOCK(stcb);
4559                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4560                                                 SCTP_TCB_UNLOCK(stcb);
4561                                         }
4562                                         SCTP_INP_RUNLOCK(inp);
4563                                 }
4564                         }
4565                         break;
4566                 }
4567         case SCTP_ENABLE_STREAM_RESET:
4568                 {
4569                         struct sctp_assoc_value *av;
4570
4571                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4572                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4573                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4574                                 error = EINVAL;
4575                                 break;
4576                         }
4577                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4578                         if (stcb) {
4579                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4580                                 SCTP_TCB_UNLOCK(stcb);
4581                         } else {
4582                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4583                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4584                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4585                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4586                                         SCTP_INP_WLOCK(inp);
4587                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4588                                         SCTP_INP_WUNLOCK(inp);
4589                                 }
4590                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4591                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4592                                         SCTP_INP_RLOCK(inp);
4593                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4594                                                 SCTP_TCB_LOCK(stcb);
4595                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4596                                                 SCTP_TCB_UNLOCK(stcb);
4597                                         }
4598                                         SCTP_INP_RUNLOCK(inp);
4599                                 }
4600                         }
4601                         break;
4602                 }
4603         case SCTP_RESET_STREAMS:
4604                 {
4605                         struct sctp_reset_streams *strrst;
4606                         int i, send_out = 0;
4607                         int send_in = 0;
4608
4609                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4610                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4611                         if (stcb == NULL) {
4612                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4613                                 error = ENOENT;
4614                                 break;
4615                         }
4616                         if (stcb->asoc.reconfig_supported == 0) {
4617                                 /*
4618                                  * Peer does not support the chunk type.
4619                                  */
4620                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4621                                 error = EOPNOTSUPP;
4622                                 SCTP_TCB_UNLOCK(stcb);
4623                                 break;
4624                         }
4625                         if (sizeof(struct sctp_reset_streams) +
4626                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4627                                 error = EINVAL;
4628                                 SCTP_TCB_UNLOCK(stcb);
4629                                 break;
4630                         }
4631                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4632                                 send_in = 1;
4633                                 if (stcb->asoc.stream_reset_outstanding) {
4634                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4635                                         error = EALREADY;
4636                                         SCTP_TCB_UNLOCK(stcb);
4637                                         break;
4638                                 }
4639                         }
4640                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4641                                 send_out = 1;
4642                         }
4643                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4645                                 error = ENOMEM;
4646                                 SCTP_TCB_UNLOCK(stcb);
4647                                 break;
4648                         }
4649                         if ((send_in == 0) && (send_out == 0)) {
4650                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4651                                 error = EINVAL;
4652                                 SCTP_TCB_UNLOCK(stcb);
4653                                 break;
4654                         }
4655                         for (i = 0; i < strrst->srs_number_streams; i++) {
4656                                 if ((send_in) &&
4657                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4658                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4659                                         error = EINVAL;
4660                                         break;
4661                                 }
4662                                 if ((send_out) &&
4663                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4664                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4665                                         error = EINVAL;
4666                                         break;
4667                                 }
4668                         }
4669                         if (error) {
4670                                 SCTP_TCB_UNLOCK(stcb);
4671                                 break;
4672                         }
4673                         if (send_out) {
4674                                 int cnt;
4675                                 uint16_t strm;
4676
4677                                 if (strrst->srs_number_streams) {
4678                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4679                                                 strm = strrst->srs_stream_list[i];
4680                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4681                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4682                                                         cnt++;
4683                                                 }
4684                                         }
4685                                 } else {
4686                                         /* Its all */
4687                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4688                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4689                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4690                                                         cnt++;
4691                                                 }
4692                                         }
4693                                 }
4694                         }
4695                         if (send_in) {
4696                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4697                                     strrst->srs_stream_list,
4698                                     send_in, 0, 0, 0, 0, 0);
4699                         } else {
4700                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4701                         }
4702                         if (error == 0) {
4703                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4704                         } else {
4705                                 /*
4706                                  * For outgoing streams don't report any
4707                                  * problems in sending the request to the
4708                                  * application. XXX: Double check resetting
4709                                  * incoming streams.
4710                                  */
4711                                 error = 0;
4712                         }
4713                         SCTP_TCB_UNLOCK(stcb);
4714                         break;
4715                 }
4716         case SCTP_ADD_STREAMS:
4717                 {
4718                         struct sctp_add_streams *stradd;
4719                         uint8_t addstream = 0;
4720                         uint16_t add_o_strmcnt = 0;
4721                         uint16_t add_i_strmcnt = 0;
4722
4723                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4724                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4725                         if (stcb == NULL) {
4726                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4727                                 error = ENOENT;
4728                                 break;
4729                         }
4730                         if (stcb->asoc.reconfig_supported == 0) {
4731                                 /*
4732                                  * Peer does not support the chunk type.
4733                                  */
4734                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4735                                 error = EOPNOTSUPP;
4736                                 SCTP_TCB_UNLOCK(stcb);
4737                                 break;
4738                         }
4739                         if (stcb->asoc.stream_reset_outstanding) {
4740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4741                                 error = EALREADY;
4742                                 SCTP_TCB_UNLOCK(stcb);
4743                                 break;
4744                         }
4745                         if ((stradd->sas_outstrms == 0) &&
4746                             (stradd->sas_instrms == 0)) {
4747                                 error = EINVAL;
4748                                 goto skip_stuff;
4749                         }
4750                         if (stradd->sas_outstrms) {
4751                                 addstream = 1;
4752                                 /* We allocate here */
4753                                 add_o_strmcnt = stradd->sas_outstrms;
4754                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4755                                         /* You can't have more than 64k */
4756                                         error = EINVAL;
4757                                         goto skip_stuff;
4758                                 }
4759                         }
4760                         if (stradd->sas_instrms) {
4761                                 int cnt;
4762
4763                                 addstream |= 2;
4764                                 /*
4765                                  * We allocate inside
4766                                  * sctp_send_str_reset_req()
4767                                  */
4768                                 add_i_strmcnt = stradd->sas_instrms;
4769                                 cnt = add_i_strmcnt;
4770                                 cnt += stcb->asoc.streamincnt;
4771                                 if (cnt > 0x0000ffff) {
4772                                         /* You can't have more than 64k */
4773                                         error = EINVAL;
4774                                         goto skip_stuff;
4775                                 }
4776                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4777                                         /* More than you are allowed */
4778                                         error = EINVAL;
4779                                         goto skip_stuff;
4780                                 }
4781                         }
4782                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4783                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4784         skip_stuff:
4785                         SCTP_TCB_UNLOCK(stcb);
4786                         break;
4787                 }
4788         case SCTP_RESET_ASSOC:
4789                 {
4790                         int i;
4791                         uint32_t *value;
4792
4793                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4794                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4795                         if (stcb == NULL) {
4796                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4797                                 error = ENOENT;
4798                                 break;
4799                         }
4800                         if (stcb->asoc.reconfig_supported == 0) {
4801                                 /*
4802                                  * Peer does not support the chunk type.
4803                                  */
4804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4805                                 error = EOPNOTSUPP;
4806                                 SCTP_TCB_UNLOCK(stcb);
4807                                 break;
4808                         }
4809                         if (stcb->asoc.stream_reset_outstanding) {
4810                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4811                                 error = EALREADY;
4812                                 SCTP_TCB_UNLOCK(stcb);
4813                                 break;
4814                         }
4815                         /*
4816                          * Is there any data pending in the send or sent
4817                          * queues?
4818                          */
4819                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4820                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4821                 busy_out:
4822                                 error = EBUSY;
4823                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4824                                 SCTP_TCB_UNLOCK(stcb);
4825                                 break;
4826                         }
4827                         /* Do any streams have data queued? */
4828                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4829                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4830                                         goto busy_out;
4831                                 }
4832                         }
4833                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4834                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4835                         SCTP_TCB_UNLOCK(stcb);
4836                         break;
4837                 }
4838         case SCTP_CONNECT_X:
4839                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4840                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4841                         error = EINVAL;
4842                         break;
4843                 }
4844                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4845                 break;
4846         case SCTP_CONNECT_X_DELAYED:
4847                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4848                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4849                         error = EINVAL;
4850                         break;
4851                 }
4852                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4853                 break;
4854         case SCTP_CONNECT_X_COMPLETE:
4855                 {
4856                         struct sockaddr *sa;
4857
4858                         /* FIXME MT: check correct? */
4859                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4860
4861                         /* find tcb */
4862                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4863                                 SCTP_INP_RLOCK(inp);
4864                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4865                                 if (stcb) {
4866                                         SCTP_TCB_LOCK(stcb);
4867                                 }
4868                                 SCTP_INP_RUNLOCK(inp);
4869                         } else {
4870                                 /*
4871                                  * We increment here since
4872                                  * sctp_findassociation_ep_addr() wil do a
4873                                  * decrement if it finds the stcb as long as
4874                                  * the locked tcb (last argument) is NOT a
4875                                  * TCB.. aka NULL.
4876                                  */
4877                                 SCTP_INP_INCR_REF(inp);
4878                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4879                                 if (stcb == NULL) {
4880                                         SCTP_INP_DECR_REF(inp);
4881                                 }
4882                         }
4883
4884                         if (stcb == NULL) {
4885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4886                                 error = ENOENT;
4887                                 break;
4888                         }
4889                         if (stcb->asoc.delayed_connection == 1) {
4890                                 stcb->asoc.delayed_connection = 0;
4891                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4892                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4893                                     stcb->asoc.primary_destination,
4894                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4895                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4896                         } else {
4897                                 /*
4898                                  * already expired or did not use delayed
4899                                  * connectx
4900                                  */
4901                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4902                                 error = EALREADY;
4903                         }
4904                         SCTP_TCB_UNLOCK(stcb);
4905                         break;
4906                 }
4907         case SCTP_MAX_BURST:
4908                 {
4909                         struct sctp_assoc_value *av;
4910
4911                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4912                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4913
4914                         if (stcb) {
4915                                 stcb->asoc.max_burst = av->assoc_value;
4916                                 SCTP_TCB_UNLOCK(stcb);
4917                         } else {
4918                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4919                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4920                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4921                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4922                                         SCTP_INP_WLOCK(inp);
4923                                         inp->sctp_ep.max_burst = av->assoc_value;
4924                                         SCTP_INP_WUNLOCK(inp);
4925                                 }
4926                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4927                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4928                                         SCTP_INP_RLOCK(inp);
4929                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4930                                                 SCTP_TCB_LOCK(stcb);
4931                                                 stcb->asoc.max_burst = av->assoc_value;
4932                                                 SCTP_TCB_UNLOCK(stcb);
4933                                         }
4934                                         SCTP_INP_RUNLOCK(inp);
4935                                 }
4936                         }
4937                         break;
4938                 }
4939         case SCTP_MAXSEG:
4940                 {
4941                         struct sctp_assoc_value *av;
4942                         int ovh;
4943
4944                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4945                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4946
4947                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4948                                 ovh = SCTP_MED_OVERHEAD;
4949                         } else {
4950                                 ovh = SCTP_MED_V4_OVERHEAD;
4951                         }
4952                         if (stcb) {
4953                                 if (av->assoc_value) {
4954                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4955                                 } else {
4956                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4957                                 }
4958                                 SCTP_TCB_UNLOCK(stcb);
4959                         } else {
4960                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4961                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4962                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4963                                         SCTP_INP_WLOCK(inp);
4964                                         /*
4965                                          * FIXME MT: I think this is not in
4966                                          * tune with the API ID
4967                                          */
4968                                         if (av->assoc_value) {
4969                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4970                                         } else {
4971                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4972                                         }
4973                                         SCTP_INP_WUNLOCK(inp);
4974                                 } else {
4975                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4976                                         error = EINVAL;
4977                                 }
4978                         }
4979                         break;
4980                 }
4981         case SCTP_EVENTS:
4982                 {
4983                         struct sctp_event_subscribe *events;
4984
4985                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4986
4987                         SCTP_INP_WLOCK(inp);
4988                         if (events->sctp_data_io_event) {
4989                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4990                         } else {
4991                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4992                         }
4993
4994                         if (events->sctp_association_event) {
4995                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4996                         } else {
4997                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4998                         }
4999
5000                         if (events->sctp_address_event) {
5001                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5002                         } else {
5003                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5004                         }
5005
5006                         if (events->sctp_send_failure_event) {
5007                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5008                         } else {
5009                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5010                         }
5011
5012                         if (events->sctp_peer_error_event) {
5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5014                         } else {
5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5016                         }
5017
5018                         if (events->sctp_shutdown_event) {
5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5020                         } else {
5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5022                         }
5023
5024                         if (events->sctp_partial_delivery_event) {
5025                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5026                         } else {
5027                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5028                         }
5029
5030                         if (events->sctp_adaptation_layer_event) {
5031                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5032                         } else {
5033                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5034                         }
5035
5036                         if (events->sctp_authentication_event) {
5037                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5038                         } else {
5039                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5040                         }
5041
5042                         if (events->sctp_sender_dry_event) {
5043                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5044                         } else {
5045                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5046                         }
5047
5048                         if (events->sctp_stream_reset_event) {
5049                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5050                         } else {
5051                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5052                         }
5053                         SCTP_INP_WUNLOCK(inp);
5054
5055                         SCTP_INP_RLOCK(inp);
5056                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5057                                 SCTP_TCB_LOCK(stcb);
5058                                 if (events->sctp_association_event) {
5059                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5060                                 } else {
5061                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5062                                 }
5063                                 if (events->sctp_address_event) {
5064                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5065                                 } else {
5066                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5067                                 }
5068                                 if (events->sctp_send_failure_event) {
5069                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5070                                 } else {
5071                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5072                                 }
5073                                 if (events->sctp_peer_error_event) {
5074                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5075                                 } else {
5076                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5077                                 }
5078                                 if (events->sctp_shutdown_event) {
5079                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5080                                 } else {
5081                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5082                                 }
5083                                 if (events->sctp_partial_delivery_event) {
5084                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5085                                 } else {
5086                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5087                                 }
5088                                 if (events->sctp_adaptation_layer_event) {
5089                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5090                                 } else {
5091                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5092                                 }
5093                                 if (events->sctp_authentication_event) {
5094                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5095                                 } else {
5096                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5097                                 }
5098                                 if (events->sctp_sender_dry_event) {
5099                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5100                                 } else {
5101                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5102                                 }
5103                                 if (events->sctp_stream_reset_event) {
5104                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5105                                 } else {
5106                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5107                                 }
5108                                 SCTP_TCB_UNLOCK(stcb);
5109                         }
5110                         /*
5111                          * Send up the sender dry event only for 1-to-1
5112                          * style sockets.
5113                          */
5114                         if (events->sctp_sender_dry_event) {
5115                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5116                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5117                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5118                                         if (stcb) {
5119                                                 SCTP_TCB_LOCK(stcb);
5120                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5121                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5122                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5123                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5124                                                 }
5125                                                 SCTP_TCB_UNLOCK(stcb);
5126                                         }
5127                                 }
5128                         }
5129                         SCTP_INP_RUNLOCK(inp);
5130                         break;
5131                 }
5132         case SCTP_ADAPTATION_LAYER:
5133                 {
5134                         struct sctp_setadaptation *adap_bits;
5135
5136                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5137                         SCTP_INP_WLOCK(inp);
5138                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5139                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5140                         SCTP_INP_WUNLOCK(inp);
5141                         break;
5142                 }
5143 #ifdef SCTP_DEBUG
5144         case SCTP_SET_INITIAL_DBG_SEQ:
5145                 {
5146                         uint32_t *vvv;
5147
5148                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5149                         SCTP_INP_WLOCK(inp);
5150                         inp->sctp_ep.initial_sequence_debug = *vvv;
5151                         SCTP_INP_WUNLOCK(inp);
5152                         break;
5153                 }
5154 #endif
5155         case SCTP_DEFAULT_SEND_PARAM:
5156                 {
5157                         struct sctp_sndrcvinfo *s_info;
5158
5159                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5160                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5161
5162                         if (stcb) {
5163                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5164                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5165                                 } else {
5166                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5167                                         error = EINVAL;
5168                                 }
5169                                 SCTP_TCB_UNLOCK(stcb);
5170                         } else {
5171                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5172                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5173                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5174                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5175                                         SCTP_INP_WLOCK(inp);
5176                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5177                                         SCTP_INP_WUNLOCK(inp);
5178                                 }
5179                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5180                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5181                                         SCTP_INP_RLOCK(inp);
5182                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5183                                                 SCTP_TCB_LOCK(stcb);
5184                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5185                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5186                                                 }
5187                                                 SCTP_TCB_UNLOCK(stcb);
5188                                         }
5189                                         SCTP_INP_RUNLOCK(inp);
5190                                 }
5191                         }
5192                         break;
5193                 }
5194         case SCTP_PEER_ADDR_PARAMS:
5195                 {
5196                         struct sctp_paddrparams *paddrp;
5197                         struct sctp_nets *net;
5198                         struct sockaddr *addr;
5199 #if defined(INET) && defined(INET6)
5200                         struct sockaddr_in sin_store;
5201 #endif
5202
5203                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5204                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5205
5206 #if defined(INET) && defined(INET6)
5207                         if (paddrp->spp_address.ss_family == AF_INET6) {
5208                                 struct sockaddr_in6 *sin6;
5209
5210                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5211                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5212                                         in6_sin6_2_sin(&sin_store, sin6);
5213                                         addr = (struct sockaddr *)&sin_store;
5214                                 } else {
5215                                         addr = (struct sockaddr *)&paddrp->spp_address;
5216                                 }
5217                         } else {
5218                                 addr = (struct sockaddr *)&paddrp->spp_address;
5219                         }
5220 #else
5221                         addr = (struct sockaddr *)&paddrp->spp_address;
5222 #endif
5223                         if (stcb != NULL) {
5224                                 net = sctp_findnet(stcb, addr);
5225                         } else {
5226                                 /*
5227                                  * We increment here since
5228                                  * sctp_findassociation_ep_addr() wil do a
5229                                  * decrement if it finds the stcb as long as
5230                                  * the locked tcb (last argument) is NOT a
5231                                  * TCB.. aka NULL.
5232                                  */
5233                                 net = NULL;
5234                                 SCTP_INP_INCR_REF(inp);
5235                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5236                                     &net, NULL, NULL);
5237                                 if (stcb == NULL) {
5238                                         SCTP_INP_DECR_REF(inp);
5239                                 }
5240                         }
5241                         if ((stcb != NULL) && (net == NULL)) {
5242 #ifdef INET
5243                                 if (addr->sa_family == AF_INET) {
5244
5245                                         struct sockaddr_in *sin;
5246
5247                                         sin = (struct sockaddr_in *)addr;
5248                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5249                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5250                                                 SCTP_TCB_UNLOCK(stcb);
5251                                                 error = EINVAL;
5252                                                 break;
5253                                         }
5254                                 } else
5255 #endif
5256 #ifdef INET6
5257                                 if (addr->sa_family == AF_INET6) {
5258                                         struct sockaddr_in6 *sin6;
5259
5260                                         sin6 = (struct sockaddr_in6 *)addr;
5261                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5262                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5263                                                 SCTP_TCB_UNLOCK(stcb);
5264                                                 error = EINVAL;
5265                                                 break;
5266                                         }
5267                                 } else
5268 #endif
5269                                 {
5270                                         error = EAFNOSUPPORT;
5271                                         SCTP_TCB_UNLOCK(stcb);
5272                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5273                                         break;
5274                                 }
5275                         }
5276                         /* sanity checks */
5277                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5278                                 if (stcb)
5279                                         SCTP_TCB_UNLOCK(stcb);
5280                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5281                                 return (EINVAL);
5282                         }
5283                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5284                                 if (stcb)
5285                                         SCTP_TCB_UNLOCK(stcb);
5286                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5287                                 return (EINVAL);
5288                         }
5289                         if (stcb != NULL) {
5290                                 /************************TCB SPECIFIC SET ******************/
5291                                 if (net != NULL) {
5292                                         /************************NET SPECIFIC SET ******************/
5293                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5294                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5295                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5296                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5297                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5298                                                 }
5299                                                 net->dest_state |= SCTP_ADDR_NOHB;
5300                                         }
5301                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5302                                                 if (paddrp->spp_hbinterval) {
5303                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5304                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5305                                                         net->heart_beat_delay = 0;
5306                                                 }
5307                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5308                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5309                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5310                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5311                                         }
5312                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5313                                                 /* on demand HB */
5314                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5315                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5316                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5317                                         }
5318                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5319                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5320                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5321                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5322                                                 }
5323                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5324                                                 net->mtu = paddrp->spp_pathmtu;
5325                                                 switch (net->ro._l_addr.sa.sa_family) {
5326 #ifdef INET
5327                                                 case AF_INET:
5328                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5329                                                         break;
5330 #endif
5331 #ifdef INET6
5332                                                 case AF_INET6:
5333                                                         net->mtu += SCTP_MIN_OVERHEAD;
5334                                                         break;
5335 #endif
5336                                                 default:
5337                                                         break;
5338                                                 }
5339                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5340                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5341                                                 }
5342                                         }
5343                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5344                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5345                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5346                                                 }
5347                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5348                                         }
5349                                         if (paddrp->spp_pathmaxrxt) {
5350                                                 if (net->dest_state & SCTP_ADDR_PF) {
5351                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5352                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5353                                                         }
5354                                                 } else {
5355                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5356                                                             (net->error_count > net->pf_threshold)) {
5357                                                                 net->dest_state |= SCTP_ADDR_PF;
5358                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5359                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5360                                                                     stcb->sctp_ep, stcb, net,
5361                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5362                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5363                                                         }
5364                                                 }
5365                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5366                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5367                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5368                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5369                                                         }
5370                                                 } else {
5371                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5372                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5373                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5374                                                         }
5375                                                 }
5376                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5377                                         }
5378                                         if (paddrp->spp_flags & SPP_DSCP) {
5379                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5380                                                 net->dscp |= 0x01;
5381                                         }
5382 #ifdef INET6
5383                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5384                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5385                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5386                                                         net->flowlabel |= 0x80000000;
5387                                                 }
5388                                         }
5389 #endif
5390                                 } else {
5391                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5392                                         if (paddrp->spp_pathmaxrxt != 0) {
5393                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5394                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5395                                                         if (net->dest_state & SCTP_ADDR_PF) {
5396                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5397                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5398                                                                 }
5399                                                         } else {
5400                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5401                                                                     (net->error_count > net->pf_threshold)) {
5402                                                                         net->dest_state |= SCTP_ADDR_PF;
5403                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5404                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5405                                                                             stcb->sctp_ep, stcb, net,
5406                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5407                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5408                                                                 }
5409                                                         }
5410                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5411                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5412                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5413                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5414                                                                 }
5415                                                         } else {
5416                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5417                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5418                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5419                                                                 }
5420                                                         }
5421                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5422                                                 }
5423                                         }
5424                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5425                                                 if (paddrp->spp_hbinterval != 0) {
5426                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5427                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5428                                                         stcb->asoc.heart_beat_delay = 0;
5429                                                 }
5430                                                 /* Turn back on the timer */
5431                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5432                                                         if (paddrp->spp_hbinterval != 0) {
5433                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5434                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5435                                                                 net->heart_beat_delay = 0;
5436                                                         }
5437                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5438                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5439                                                         }
5440                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5441                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5442                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5443                                                 }
5444                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5445                                         }
5446                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5447                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5448                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5449                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5450                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5451                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5452                                                                             inp, stcb, net,
5453                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5454                                                                 }
5455                                                         }
5456                                                 }
5457                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5458                                         }
5459                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5460                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5461                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5462                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5463                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5464                                                         }
5465                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5466                                                         net->mtu = paddrp->spp_pathmtu;
5467                                                         switch (net->ro._l_addr.sa.sa_family) {
5468 #ifdef INET
5469                                                         case AF_INET:
5470                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5471                                                                 break;
5472 #endif
5473 #ifdef INET6
5474                                                         case AF_INET6:
5475                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5476                                                                 break;
5477 #endif
5478                                                         default:
5479                                                                 break;
5480                                                         }
5481                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5482                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5483                                                         }
5484                                                 }
5485                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5486                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5487                                         }
5488                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5489                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5490                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5491                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5492                                                         }
5493                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5494                                                 }
5495                                                 stcb->asoc.default_mtu = 0;
5496                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5497                                         }
5498                                         if (paddrp->spp_flags & SPP_DSCP) {
5499                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5500                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5501                                                         net->dscp |= 0x01;
5502                                                 }
5503                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5504                                                 stcb->asoc.default_dscp |= 0x01;
5505                                         }
5506 #ifdef INET6
5507                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5508                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5509                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5510                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5511                                                                 net->flowlabel |= 0x80000000;
5512                                                         }
5513                                                 }
5514                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5515                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5516                                         }
5517 #endif
5518                                 }
5519                                 SCTP_TCB_UNLOCK(stcb);
5520                         } else {
5521                                 /************************NO TCB, SET TO default stuff ******************/
5522                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5523                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5524                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5525                                         SCTP_INP_WLOCK(inp);
5526                                         /*
5527                                          * For the TOS/FLOWLABEL stuff you
5528                                          * set it with the options on the
5529                                          * socket
5530                                          */
5531                                         if (paddrp->spp_pathmaxrxt != 0) {
5532                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5533                                         }
5534                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5535                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5536                                         else if (paddrp->spp_hbinterval != 0) {
5537                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5538                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5539                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5540                                         }
5541                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5542                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5543                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5544                                                 } else if (paddrp->spp_hbinterval) {
5545                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5546                                                 }
5547                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5548                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5549                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5550                                         }
5551                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5552                                                 inp->sctp_ep.default_mtu = 0;
5553                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5554                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5555                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
5556                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5557                                                 }
5558                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5559                                         }
5560                                         if (paddrp->spp_flags & SPP_DSCP) {
5561                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5562                                                 inp->sctp_ep.default_dscp |= 0x01;
5563                                         }
5564 #ifdef INET6
5565                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5566                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5567                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5568                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5569                                                 }
5570                                         }
5571 #endif
5572                                         SCTP_INP_WUNLOCK(inp);
5573                                 } else {
5574                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5575                                         error = EINVAL;
5576                                 }
5577                         }
5578                         break;
5579                 }
5580         case SCTP_RTOINFO:
5581                 {
5582                         struct sctp_rtoinfo *srto;
5583                         uint32_t new_init, new_min, new_max;
5584
5585                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5586                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5587
5588                         if (stcb) {
5589                                 if (srto->srto_initial)
5590                                         new_init = srto->srto_initial;
5591                                 else
5592                                         new_init = stcb->asoc.initial_rto;
5593                                 if (srto->srto_max)
5594                                         new_max = srto->srto_max;
5595                                 else
5596                                         new_max = stcb->asoc.maxrto;
5597                                 if (srto->srto_min)
5598                                         new_min = srto->srto_min;
5599                                 else
5600                                         new_min = stcb->asoc.minrto;
5601                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5602                                         stcb->asoc.initial_rto = new_init;
5603                                         stcb->asoc.maxrto = new_max;
5604                                         stcb->asoc.minrto = new_min;
5605                                 } else {
5606                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5607                                         error = EINVAL;
5608                                 }
5609                                 SCTP_TCB_UNLOCK(stcb);
5610                         } else {
5611                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5612                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5613                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5614                                         SCTP_INP_WLOCK(inp);
5615                                         if (srto->srto_initial)
5616                                                 new_init = srto->srto_initial;
5617                                         else
5618                                                 new_init = inp->sctp_ep.initial_rto;
5619                                         if (srto->srto_max)
5620                                                 new_max = srto->srto_max;
5621                                         else
5622                                                 new_max = inp->sctp_ep.sctp_maxrto;
5623                                         if (srto->srto_min)
5624                                                 new_min = srto->srto_min;
5625                                         else
5626                                                 new_min = inp->sctp_ep.sctp_minrto;
5627                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5628                                                 inp->sctp_ep.initial_rto = new_init;
5629                                                 inp->sctp_ep.sctp_maxrto = new_max;
5630                                                 inp->sctp_ep.sctp_minrto = new_min;
5631                                         } else {
5632                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5633                                                 error = EINVAL;
5634                                         }
5635                                         SCTP_INP_WUNLOCK(inp);
5636                                 } else {
5637                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5638                                         error = EINVAL;
5639                                 }
5640                         }
5641                         break;
5642                 }
5643         case SCTP_ASSOCINFO:
5644                 {
5645                         struct sctp_assocparams *sasoc;
5646
5647                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5648                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5649                         if (sasoc->sasoc_cookie_life) {
5650                                 /* boundary check the cookie life */
5651                                 if (sasoc->sasoc_cookie_life < 1000)
5652                                         sasoc->sasoc_cookie_life = 1000;
5653                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5654                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5655                                 }
5656                         }
5657                         if (stcb) {
5658                                 if (sasoc->sasoc_asocmaxrxt)
5659                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5660                                 if (sasoc->sasoc_cookie_life) {
5661                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5662                                 }
5663                                 SCTP_TCB_UNLOCK(stcb);
5664                         } else {
5665                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5666                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5667                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5668                                         SCTP_INP_WLOCK(inp);
5669                                         if (sasoc->sasoc_asocmaxrxt)
5670                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5671                                         if (sasoc->sasoc_cookie_life) {
5672                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5673                                         }
5674                                         SCTP_INP_WUNLOCK(inp);
5675                                 } else {
5676                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5677                                         error = EINVAL;
5678                                 }
5679                         }
5680                         break;
5681                 }
5682         case SCTP_INITMSG:
5683                 {
5684                         struct sctp_initmsg *sinit;
5685
5686                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5687                         SCTP_INP_WLOCK(inp);
5688                         if (sinit->sinit_num_ostreams)
5689                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5690
5691                         if (sinit->sinit_max_instreams)
5692                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5693
5694                         if (sinit->sinit_max_attempts)
5695                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5696
5697                         if (sinit->sinit_max_init_timeo)
5698                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5699                         SCTP_INP_WUNLOCK(inp);
5700                         break;
5701                 }
5702         case SCTP_PRIMARY_ADDR:
5703                 {
5704                         struct sctp_setprim *spa;
5705                         struct sctp_nets *net;
5706                         struct sockaddr *addr;
5707 #if defined(INET) && defined(INET6)
5708                         struct sockaddr_in sin_store;
5709 #endif
5710
5711                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5712                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5713
5714 #if defined(INET) && defined(INET6)
5715                         if (spa->ssp_addr.ss_family == AF_INET6) {
5716                                 struct sockaddr_in6 *sin6;
5717
5718                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5719                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5720                                         in6_sin6_2_sin(&sin_store, sin6);
5721                                         addr = (struct sockaddr *)&sin_store;
5722                                 } else {
5723                                         addr = (struct sockaddr *)&spa->ssp_addr;
5724                                 }
5725                         } else {
5726                                 addr = (struct sockaddr *)&spa->ssp_addr;
5727                         }
5728 #else
5729                         addr = (struct sockaddr *)&spa->ssp_addr;
5730 #endif
5731                         if (stcb != NULL) {
5732                                 net = sctp_findnet(stcb, addr);
5733                         } else {
5734                                 /*
5735                                  * We increment here since
5736                                  * sctp_findassociation_ep_addr() wil do a
5737                                  * decrement if it finds the stcb as long as
5738                                  * the locked tcb (last argument) is NOT a
5739                                  * TCB.. aka NULL.
5740                                  */
5741                                 net = NULL;
5742                                 SCTP_INP_INCR_REF(inp);
5743                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5744                                     &net, NULL, NULL);
5745                                 if (stcb == NULL) {
5746                                         SCTP_INP_DECR_REF(inp);
5747                                 }
5748                         }
5749
5750                         if ((stcb != NULL) && (net != NULL)) {
5751                                 if (net != stcb->asoc.primary_destination) {
5752                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5753                                                 /* Ok we need to set it */
5754                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5755                                                         if ((stcb->asoc.alternate) &&
5756                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5757                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5758                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5759                                                                 stcb->asoc.alternate = NULL;
5760                                                         }
5761                                                 } else {
5762                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5763                                                         error = EINVAL;
5764                                                 }
5765                                         } else {
5766                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5767                                                 error = EINVAL;
5768                                         }
5769                                 }
5770                         } else {
5771                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5772                                 error = EINVAL;
5773                         }
5774                         if (stcb != NULL) {
5775                                 SCTP_TCB_UNLOCK(stcb);
5776                         }
5777                         break;
5778                 }
5779         case SCTP_SET_DYNAMIC_PRIMARY:
5780                 {
5781                         union sctp_sockstore *ss;
5782
5783                         error = priv_check(curthread,
5784                             PRIV_NETINET_RESERVEDPORT);
5785                         if (error)
5786                                 break;
5787
5788                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5789                         /* SUPER USER CHECK? */
5790                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5791                         break;
5792                 }
5793         case SCTP_SET_PEER_PRIMARY_ADDR:
5794                 {
5795                         struct sctp_setpeerprim *sspp;
5796                         struct sockaddr *addr;
5797 #if defined(INET) && defined(INET6)
5798                         struct sockaddr_in sin_store;
5799 #endif
5800
5801                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5802                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5803                         if (stcb != NULL) {
5804                                 struct sctp_ifa *ifa;
5805
5806 #if defined(INET) && defined(INET6)
5807                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5808                                         struct sockaddr_in6 *sin6;
5809
5810                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5811                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5812                                                 in6_sin6_2_sin(&sin_store, sin6);
5813                                                 addr = (struct sockaddr *)&sin_store;
5814                                         } else {
5815                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5816                                         }
5817                                 } else {
5818                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5819                                 }
5820 #else
5821                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5822 #endif
5823                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5824                                 if (ifa == NULL) {
5825                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5826                                         error = EINVAL;
5827                                         goto out_of_it;
5828                                 }
5829                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5830                                         /*
5831                                          * Must validate the ifa found is in
5832                                          * our ep
5833                                          */
5834                                         struct sctp_laddr *laddr;
5835                                         int found = 0;
5836
5837                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5838                                                 if (laddr->ifa == NULL) {
5839                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5840                                                             __func__);
5841                                                         continue;
5842                                                 }
5843                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5844                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5845                                                         continue;
5846                                                 }
5847                                                 if (laddr->ifa == ifa) {
5848                                                         found = 1;
5849                                                         break;
5850                                                 }
5851                                         }
5852                                         if (!found) {
5853                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5854                                                 error = EINVAL;
5855                                                 goto out_of_it;
5856                                         }
5857                                 } else {
5858                                         switch (addr->sa_family) {
5859 #ifdef INET
5860                                         case AF_INET:
5861                                                 {
5862                                                         struct sockaddr_in *sin;
5863
5864                                                         sin = (struct sockaddr_in *)addr;
5865                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5866                                                             &sin->sin_addr) != 0) {
5867                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5868                                                                 error = EINVAL;
5869                                                                 goto out_of_it;
5870                                                         }
5871                                                         break;
5872                                                 }
5873 #endif
5874 #ifdef INET6
5875                                         case AF_INET6:
5876                                                 {
5877                                                         struct sockaddr_in6 *sin6;
5878
5879                                                         sin6 = (struct sockaddr_in6 *)addr;
5880                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5881                                                             &sin6->sin6_addr) != 0) {
5882                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5883                                                                 error = EINVAL;
5884                                                                 goto out_of_it;
5885                                                         }
5886                                                         break;
5887                                                 }
5888 #endif
5889                                         default:
5890                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5891                                                 error = EINVAL;
5892                                                 goto out_of_it;
5893                                         }
5894                                 }
5895                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5896                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5897                                         error = EINVAL;
5898                                 }
5899                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5900                 out_of_it:
5901                                 SCTP_TCB_UNLOCK(stcb);
5902                         } else {
5903                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5904                                 error = EINVAL;
5905                         }
5906                         break;
5907                 }
5908         case SCTP_BINDX_ADD_ADDR:
5909                 {
5910                         struct sctp_getaddresses *addrs;
5911                         struct thread *td;
5912
5913                         td = (struct thread *)p;
5914                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5915                             optsize);
5916 #ifdef INET
5917                         if (addrs->addr->sa_family == AF_INET) {
5918                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5919                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5920                                         error = EINVAL;
5921                                         break;
5922                                 }
5923                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5924                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5925                                         break;
5926                                 }
5927                         } else
5928 #endif
5929 #ifdef INET6
5930                         if (addrs->addr->sa_family == AF_INET6) {
5931                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5932                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5933                                         error = EINVAL;
5934                                         break;
5935                                 }
5936                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5937                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5938                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5939                                         break;
5940                                 }
5941                         } else
5942 #endif
5943                         {
5944                                 error = EAFNOSUPPORT;
5945                                 break;
5946                         }
5947                         sctp_bindx_add_address(so, inp, addrs->addr,
5948                             addrs->sget_assoc_id, vrf_id,
5949                             &error, p);
5950                         break;
5951                 }
5952         case SCTP_BINDX_REM_ADDR:
5953                 {
5954                         struct sctp_getaddresses *addrs;
5955                         struct thread *td;
5956
5957                         td = (struct thread *)p;
5958
5959                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5960 #ifdef INET
5961                         if (addrs->addr->sa_family == AF_INET) {
5962                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5964                                         error = EINVAL;
5965                                         break;
5966                                 }
5967                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5968                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5969                                         break;
5970                                 }
5971                         } else
5972 #endif
5973 #ifdef INET6
5974                         if (addrs->addr->sa_family == AF_INET6) {
5975                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5976                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5977                                         error = EINVAL;
5978                                         break;
5979                                 }
5980                                 if (td != NULL &&
5981                                     (error = prison_local_ip6(td->td_ucred,
5982                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5983                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5984                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5985                                         break;
5986                                 }
5987                         } else
5988 #endif
5989                         {
5990                                 error = EAFNOSUPPORT;
5991                                 break;
5992                         }
5993                         sctp_bindx_delete_address(inp, addrs->addr,
5994                             addrs->sget_assoc_id, vrf_id,
5995                             &error);
5996                         break;
5997                 }
5998         case SCTP_EVENT:
5999                 {
6000                         struct sctp_event *event;
6001                         uint32_t event_type;
6002
6003                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6004                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6005                         switch (event->se_type) {
6006                         case SCTP_ASSOC_CHANGE:
6007                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6008                                 break;
6009                         case SCTP_PEER_ADDR_CHANGE:
6010                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6011                                 break;
6012                         case SCTP_REMOTE_ERROR:
6013                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6014                                 break;
6015                         case SCTP_SEND_FAILED:
6016                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6017                                 break;
6018                         case SCTP_SHUTDOWN_EVENT:
6019                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6020                                 break;
6021                         case SCTP_ADAPTATION_INDICATION:
6022                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6023                                 break;
6024                         case SCTP_PARTIAL_DELIVERY_EVENT:
6025                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6026                                 break;
6027                         case SCTP_AUTHENTICATION_EVENT:
6028                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6029                                 break;
6030                         case SCTP_STREAM_RESET_EVENT:
6031                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6032                                 break;
6033                         case SCTP_SENDER_DRY_EVENT:
6034                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6035                                 break;
6036                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6037                                 event_type = 0;
6038                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6039                                 error = ENOTSUP;
6040                                 break;
6041                         case SCTP_ASSOC_RESET_EVENT:
6042                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6043                                 break;
6044                         case SCTP_STREAM_CHANGE_EVENT:
6045                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6046                                 break;
6047                         case SCTP_SEND_FAILED_EVENT:
6048                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6049                                 break;
6050                         default:
6051                                 event_type = 0;
6052                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6053                                 error = EINVAL;
6054                                 break;
6055                         }
6056                         if (event_type > 0) {
6057                                 if (stcb) {
6058                                         if (event->se_on) {
6059                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6060                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6061                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6062                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6063                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6064                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6065                                                         }
6066                                                 }
6067                                         } else {
6068                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6069                                         }
6070                                         SCTP_TCB_UNLOCK(stcb);
6071                                 } else {
6072                                         /*
6073                                          * We don't want to send up a storm
6074                                          * of events, so return an error for
6075                                          * sender dry events
6076                                          */
6077                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6078                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6079                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6080                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6081                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6082                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6083                                                 error = ENOTSUP;
6084                                                 break;
6085                                         }
6086                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6087                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6088                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6089                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6090                                                 SCTP_INP_WLOCK(inp);
6091                                                 if (event->se_on) {
6092                                                         sctp_feature_on(inp, event_type);
6093                                                 } else {
6094                                                         sctp_feature_off(inp, event_type);
6095                                                 }
6096                                                 SCTP_INP_WUNLOCK(inp);
6097                                         }
6098                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6099                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6100                                                 SCTP_INP_RLOCK(inp);
6101                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6102                                                         SCTP_TCB_LOCK(stcb);
6103                                                         if (event->se_on) {
6104                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6105                                                         } else {
6106                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6107                                                         }
6108                                                         SCTP_TCB_UNLOCK(stcb);
6109                                                 }
6110                                                 SCTP_INP_RUNLOCK(inp);
6111                                         }
6112                                 }
6113                         }
6114                         break;
6115                 }
6116         case SCTP_RECVRCVINFO:
6117                 {
6118                         int *onoff;
6119
6120                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6121                         SCTP_INP_WLOCK(inp);
6122                         if (*onoff != 0) {
6123                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6124                         } else {
6125                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6126                         }
6127                         SCTP_INP_WUNLOCK(inp);
6128                         break;
6129                 }
6130         case SCTP_RECVNXTINFO:
6131                 {
6132                         int *onoff;
6133
6134                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6135                         SCTP_INP_WLOCK(inp);
6136                         if (*onoff != 0) {
6137                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6138                         } else {
6139                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6140                         }
6141                         SCTP_INP_WUNLOCK(inp);
6142                         break;
6143                 }
6144         case SCTP_DEFAULT_SNDINFO:
6145                 {
6146                         struct sctp_sndinfo *info;
6147                         uint16_t policy;
6148
6149                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6150                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6151
6152                         if (stcb) {
6153                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6154                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6155                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6156                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6157                                         stcb->asoc.def_send.sinfo_flags |= policy;
6158                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6159                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6160                                 } else {
6161                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6162                                         error = EINVAL;
6163                                 }
6164                                 SCTP_TCB_UNLOCK(stcb);
6165                         } else {
6166                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6167                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6168                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6169                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6170                                         SCTP_INP_WLOCK(inp);
6171                                         inp->def_send.sinfo_stream = info->snd_sid;
6172                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6173                                         inp->def_send.sinfo_flags = info->snd_flags;
6174                                         inp->def_send.sinfo_flags |= policy;
6175                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6176                                         inp->def_send.sinfo_context = info->snd_context;
6177                                         SCTP_INP_WUNLOCK(inp);
6178                                 }
6179                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6180                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6181                                         SCTP_INP_RLOCK(inp);
6182                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6183                                                 SCTP_TCB_LOCK(stcb);
6184                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6185                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6186                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6187                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6188                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6189                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6190                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6191                                                 }
6192                                                 SCTP_TCB_UNLOCK(stcb);
6193                                         }
6194                                         SCTP_INP_RUNLOCK(inp);
6195                                 }
6196                         }
6197                         break;
6198                 }
6199         case SCTP_DEFAULT_PRINFO:
6200                 {
6201                         struct sctp_default_prinfo *info;
6202
6203                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6204                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6205
6206                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6207                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6208                                 error = EINVAL;
6209                                 break;
6210                         }
6211                         if (stcb) {
6212                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6213                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6214                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6215                                 SCTP_TCB_UNLOCK(stcb);
6216                         } else {
6217                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6218                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6219                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6220                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6221                                         SCTP_INP_WLOCK(inp);
6222                                         inp->def_send.sinfo_flags &= 0xfff0;
6223                                         inp->def_send.sinfo_flags |= info->pr_policy;
6224                                         inp->def_send.sinfo_timetolive = info->pr_value;
6225                                         SCTP_INP_WUNLOCK(inp);
6226                                 }
6227                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6228                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6229                                         SCTP_INP_RLOCK(inp);
6230                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6231                                                 SCTP_TCB_LOCK(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                                         }
6237                                         SCTP_INP_RUNLOCK(inp);
6238                                 }
6239                         }
6240                         break;
6241                 }
6242         case SCTP_PEER_ADDR_THLDS:
6243                 /* Applies to the specific association */
6244                 {
6245                         struct sctp_paddrthlds *thlds;
6246                         struct sctp_nets *net;
6247                         struct sockaddr *addr;
6248 #if defined(INET) && defined(INET6)
6249                         struct sockaddr_in sin_store;
6250 #endif
6251
6252                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6253                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6254
6255 #if defined(INET) && defined(INET6)
6256                         if (thlds->spt_address.ss_family == AF_INET6) {
6257                                 struct sockaddr_in6 *sin6;
6258
6259                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6260                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6261                                         in6_sin6_2_sin(&sin_store, sin6);
6262                                         addr = (struct sockaddr *)&sin_store;
6263                                 } else {
6264                                         addr = (struct sockaddr *)&thlds->spt_address;
6265                                 }
6266                         } else {
6267                                 addr = (struct sockaddr *)&thlds->spt_address;
6268                         }
6269 #else
6270                         addr = (struct sockaddr *)&thlds->spt_address;
6271 #endif
6272                         if (stcb != NULL) {
6273                                 net = sctp_findnet(stcb, addr);
6274                         } else {
6275                                 /*
6276                                  * We increment here since
6277                                  * sctp_findassociation_ep_addr() wil do a
6278                                  * decrement if it finds the stcb as long as
6279                                  * the locked tcb (last argument) is NOT a
6280                                  * TCB.. aka NULL.
6281                                  */
6282                                 net = NULL;
6283                                 SCTP_INP_INCR_REF(inp);
6284                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6285                                     &net, NULL, NULL);
6286                                 if (stcb == NULL) {
6287                                         SCTP_INP_DECR_REF(inp);
6288                                 }
6289                         }
6290                         if ((stcb != NULL) && (net == NULL)) {
6291 #ifdef INET
6292                                 if (addr->sa_family == AF_INET) {
6293
6294                                         struct sockaddr_in *sin;
6295
6296                                         sin = (struct sockaddr_in *)addr;
6297                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6298                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6299                                                 SCTP_TCB_UNLOCK(stcb);
6300                                                 error = EINVAL;
6301                                                 break;
6302                                         }
6303                                 } else
6304 #endif
6305 #ifdef INET6
6306                                 if (addr->sa_family == AF_INET6) {
6307                                         struct sockaddr_in6 *sin6;
6308
6309                                         sin6 = (struct sockaddr_in6 *)addr;
6310                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6311                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6312                                                 SCTP_TCB_UNLOCK(stcb);
6313                                                 error = EINVAL;
6314                                                 break;
6315                                         }
6316                                 } else
6317 #endif
6318                                 {
6319                                         error = EAFNOSUPPORT;
6320                                         SCTP_TCB_UNLOCK(stcb);
6321                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6322                                         break;
6323                                 }
6324                         }
6325                         if (thlds->spt_pathcpthld != 0xffff) {
6326                                 error = EINVAL;
6327                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6328                                 break;
6329                         }
6330                         if (stcb != NULL) {
6331                                 if (net != NULL) {
6332                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6333                                         net->pf_threshold = thlds->spt_pathpfthld;
6334                                         if (net->dest_state & SCTP_ADDR_PF) {
6335                                                 if ((net->error_count > net->failure_threshold) ||
6336                                                     (net->error_count <= net->pf_threshold)) {
6337                                                         net->dest_state &= ~SCTP_ADDR_PF;
6338                                                 }
6339                                         } else {
6340                                                 if ((net->error_count > net->pf_threshold) &&
6341                                                     (net->error_count <= net->failure_threshold)) {
6342                                                         net->dest_state |= SCTP_ADDR_PF;
6343                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6344                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6345                                                             stcb->sctp_ep, stcb, net,
6346                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6347                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6348                                                 }
6349                                         }
6350                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6351                                                 if (net->error_count > net->failure_threshold) {
6352                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6353                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6354                                                 }
6355                                         } else {
6356                                                 if (net->error_count <= net->failure_threshold) {
6357                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6358                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6359                                                 }
6360                                         }
6361                                 } else {
6362                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6363                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6364                                                 net->pf_threshold = thlds->spt_pathpfthld;
6365                                                 if (net->dest_state & SCTP_ADDR_PF) {
6366                                                         if ((net->error_count > net->failure_threshold) ||
6367                                                             (net->error_count <= net->pf_threshold)) {
6368                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6369                                                         }
6370                                                 } else {
6371                                                         if ((net->error_count > net->pf_threshold) &&
6372                                                             (net->error_count <= net->failure_threshold)) {
6373                                                                 net->dest_state |= SCTP_ADDR_PF;
6374                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6375                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6376                                                                     stcb->sctp_ep, stcb, net,
6377                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6378                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6379                                                         }
6380                                                 }
6381                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6382                                                         if (net->error_count > net->failure_threshold) {
6383                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6384                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6385                                                         }
6386                                                 } else {
6387                                                         if (net->error_count <= net->failure_threshold) {
6388                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6389                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6390                                                         }
6391                                                 }
6392                                         }
6393                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6394                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6395                                 }
6396                                 SCTP_TCB_UNLOCK(stcb);
6397                         } else {
6398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6399                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6400                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6401                                         SCTP_INP_WLOCK(inp);
6402                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6403                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6404                                         SCTP_INP_WUNLOCK(inp);
6405                                 } else {
6406                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6407                                         error = EINVAL;
6408                                 }
6409                         }
6410                         break;
6411                 }
6412         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6413                 {
6414                         struct sctp_udpencaps *encaps;
6415                         struct sctp_nets *net;
6416                         struct sockaddr *addr;
6417 #if defined(INET) && defined(INET6)
6418                         struct sockaddr_in sin_store;
6419 #endif
6420
6421                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6422                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6423
6424 #if defined(INET) && defined(INET6)
6425                         if (encaps->sue_address.ss_family == AF_INET6) {
6426                                 struct sockaddr_in6 *sin6;
6427
6428                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6429                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6430                                         in6_sin6_2_sin(&sin_store, sin6);
6431                                         addr = (struct sockaddr *)&sin_store;
6432                                 } else {
6433                                         addr = (struct sockaddr *)&encaps->sue_address;
6434                                 }
6435                         } else {
6436                                 addr = (struct sockaddr *)&encaps->sue_address;
6437                         }
6438 #else
6439                         addr = (struct sockaddr *)&encaps->sue_address;
6440 #endif
6441                         if (stcb != NULL) {
6442                                 net = sctp_findnet(stcb, addr);
6443                         } else {
6444                                 /*
6445                                  * We increment here since
6446                                  * sctp_findassociation_ep_addr() wil do a
6447                                  * decrement if it finds the stcb as long as
6448                                  * the locked tcb (last argument) is NOT a
6449                                  * TCB.. aka NULL.
6450                                  */
6451                                 net = NULL;
6452                                 SCTP_INP_INCR_REF(inp);
6453                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6454                                 if (stcb == NULL) {
6455                                         SCTP_INP_DECR_REF(inp);
6456                                 }
6457                         }
6458                         if ((stcb != NULL) && (net == NULL)) {
6459 #ifdef INET
6460                                 if (addr->sa_family == AF_INET) {
6461
6462                                         struct sockaddr_in *sin;
6463
6464                                         sin = (struct sockaddr_in *)addr;
6465                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6466                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6467                                                 SCTP_TCB_UNLOCK(stcb);
6468                                                 error = EINVAL;
6469                                                 break;
6470                                         }
6471                                 } else
6472 #endif
6473 #ifdef INET6
6474                                 if (addr->sa_family == AF_INET6) {
6475                                         struct sockaddr_in6 *sin6;
6476
6477                                         sin6 = (struct sockaddr_in6 *)addr;
6478                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6479                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6480                                                 SCTP_TCB_UNLOCK(stcb);
6481                                                 error = EINVAL;
6482                                                 break;
6483                                         }
6484                                 } else
6485 #endif
6486                                 {
6487                                         error = EAFNOSUPPORT;
6488                                         SCTP_TCB_UNLOCK(stcb);
6489                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6490                                         break;
6491                                 }
6492                         }
6493                         if (stcb != NULL) {
6494                                 if (net != NULL) {
6495                                         net->port = encaps->sue_port;
6496                                 } else {
6497                                         stcb->asoc.port = encaps->sue_port;
6498                                 }
6499                                 SCTP_TCB_UNLOCK(stcb);
6500                         } else {
6501                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6502                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6503                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6504                                         SCTP_INP_WLOCK(inp);
6505                                         inp->sctp_ep.port = encaps->sue_port;
6506                                         SCTP_INP_WUNLOCK(inp);
6507                                 } else {
6508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6509                                         error = EINVAL;
6510                                 }
6511                         }
6512                         break;
6513                 }
6514         case SCTP_ECN_SUPPORTED:
6515                 {
6516                         struct sctp_assoc_value *av;
6517
6518                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6519                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6520
6521                         if (stcb) {
6522                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6523                                 error = EINVAL;
6524                                 SCTP_TCB_UNLOCK(stcb);
6525                         } else {
6526                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6527                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6528                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6529                                         SCTP_INP_WLOCK(inp);
6530                                         if (av->assoc_value == 0) {
6531                                                 inp->ecn_supported = 0;
6532                                         } else {
6533                                                 inp->ecn_supported = 1;
6534                                         }
6535                                         SCTP_INP_WUNLOCK(inp);
6536                                 } else {
6537                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6538                                         error = EINVAL;
6539                                 }
6540                         }
6541                         break;
6542                 }
6543         case SCTP_PR_SUPPORTED:
6544                 {
6545                         struct sctp_assoc_value *av;
6546
6547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6548                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6549
6550                         if (stcb) {
6551                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6552                                 error = EINVAL;
6553                                 SCTP_TCB_UNLOCK(stcb);
6554                         } else {
6555                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6556                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6557                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6558                                         SCTP_INP_WLOCK(inp);
6559                                         if (av->assoc_value == 0) {
6560                                                 inp->prsctp_supported = 0;
6561                                         } else {
6562                                                 inp->prsctp_supported = 1;
6563                                         }
6564                                         SCTP_INP_WUNLOCK(inp);
6565                                 } else {
6566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6567                                         error = EINVAL;
6568                                 }
6569                         }
6570                         break;
6571                 }
6572         case SCTP_AUTH_SUPPORTED:
6573                 {
6574                         struct sctp_assoc_value *av;
6575
6576                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6577                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6578
6579                         if (stcb) {
6580                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6581                                 error = EINVAL;
6582                                 SCTP_TCB_UNLOCK(stcb);
6583                         } else {
6584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6586                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6587                                         if ((av->assoc_value == 0) &&
6588                                             (inp->asconf_supported == 1)) {
6589                                                 /*
6590                                                  * AUTH is required for
6591                                                  * ASCONF
6592                                                  */
6593                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6594                                                 error = EINVAL;
6595                                         } else {
6596                                                 SCTP_INP_WLOCK(inp);
6597                                                 if (av->assoc_value == 0) {
6598                                                         inp->auth_supported = 0;
6599                                                 } else {
6600                                                         inp->auth_supported = 1;
6601                                                 }
6602                                                 SCTP_INP_WUNLOCK(inp);
6603                                         }
6604                                 } else {
6605                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6606                                         error = EINVAL;
6607                                 }
6608                         }
6609                         break;
6610                 }
6611         case SCTP_ASCONF_SUPPORTED:
6612                 {
6613                         struct sctp_assoc_value *av;
6614
6615                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6616                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6617
6618                         if (stcb) {
6619                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6620                                 error = EINVAL;
6621                                 SCTP_TCB_UNLOCK(stcb);
6622                         } else {
6623                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6624                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6625                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6626                                         if ((av->assoc_value != 0) &&
6627                                             (inp->auth_supported == 0)) {
6628                                                 /*
6629                                                  * AUTH is required for
6630                                                  * ASCONF
6631                                                  */
6632                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6633                                                 error = EINVAL;
6634                                         } else {
6635                                                 SCTP_INP_WLOCK(inp);
6636                                                 if (av->assoc_value == 0) {
6637                                                         inp->asconf_supported = 0;
6638                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6639                                                             inp->sctp_ep.local_auth_chunks);
6640                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6641                                                             inp->sctp_ep.local_auth_chunks);
6642                                                 } else {
6643                                                         inp->asconf_supported = 1;
6644                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6645                                                             inp->sctp_ep.local_auth_chunks);
6646                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6647                                                             inp->sctp_ep.local_auth_chunks);
6648                                                 }
6649                                                 SCTP_INP_WUNLOCK(inp);
6650                                         }
6651                                 } else {
6652                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6653                                         error = EINVAL;
6654                                 }
6655                         }
6656                         break;
6657                 }
6658         case SCTP_RECONFIG_SUPPORTED:
6659                 {
6660                         struct sctp_assoc_value *av;
6661
6662                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6663                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6664
6665                         if (stcb) {
6666                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6667                                 error = EINVAL;
6668                                 SCTP_TCB_UNLOCK(stcb);
6669                         } else {
6670                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6671                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6672                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6673                                         SCTP_INP_WLOCK(inp);
6674                                         if (av->assoc_value == 0) {
6675                                                 inp->reconfig_supported = 0;
6676                                         } else {
6677                                                 inp->reconfig_supported = 1;
6678                                         }
6679                                         SCTP_INP_WUNLOCK(inp);
6680                                 } else {
6681                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6682                                         error = EINVAL;
6683                                 }
6684                         }
6685                         break;
6686                 }
6687         case SCTP_NRSACK_SUPPORTED:
6688                 {
6689                         struct sctp_assoc_value *av;
6690
6691                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6692                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6693
6694                         if (stcb) {
6695                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6696                                 error = EINVAL;
6697                                 SCTP_TCB_UNLOCK(stcb);
6698                         } else {
6699                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6700                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6701                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6702                                         SCTP_INP_WLOCK(inp);
6703                                         if (av->assoc_value == 0) {
6704                                                 inp->nrsack_supported = 0;
6705                                         } else {
6706                                                 inp->nrsack_supported = 1;
6707                                         }
6708                                         SCTP_INP_WUNLOCK(inp);
6709                                 } else {
6710                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6711                                         error = EINVAL;
6712                                 }
6713                         }
6714                         break;
6715                 }
6716         case SCTP_PKTDROP_SUPPORTED:
6717                 {
6718                         struct sctp_assoc_value *av;
6719
6720                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6721                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6722
6723                         if (stcb) {
6724                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6725                                 error = EINVAL;
6726                                 SCTP_TCB_UNLOCK(stcb);
6727                         } else {
6728                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6729                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6730                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6731                                         SCTP_INP_WLOCK(inp);
6732                                         if (av->assoc_value == 0) {
6733                                                 inp->pktdrop_supported = 0;
6734                                         } else {
6735                                                 inp->pktdrop_supported = 1;
6736                                         }
6737                                         SCTP_INP_WUNLOCK(inp);
6738                                 } else {
6739                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6740                                         error = EINVAL;
6741                                 }
6742                         }
6743                         break;
6744                 }
6745         case SCTP_MAX_CWND:
6746                 {
6747                         struct sctp_assoc_value *av;
6748                         struct sctp_nets *net;
6749
6750                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6751                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6752
6753                         if (stcb) {
6754                                 stcb->asoc.max_cwnd = av->assoc_value;
6755                                 if (stcb->asoc.max_cwnd > 0) {
6756                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6757                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6758                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6759                                                         net->cwnd = stcb->asoc.max_cwnd;
6760                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6761                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6762                                                         }
6763                                                 }
6764                                         }
6765                                 }
6766                                 SCTP_TCB_UNLOCK(stcb);
6767                         } else {
6768                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6769                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6770                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6771                                         SCTP_INP_WLOCK(inp);
6772                                         inp->max_cwnd = av->assoc_value;
6773                                         SCTP_INP_WUNLOCK(inp);
6774                                 } else {
6775                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6776                                         error = EINVAL;
6777                                 }
6778                         }
6779                         break;
6780                 }
6781         default:
6782                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6783                 error = ENOPROTOOPT;
6784                 break;
6785         }                       /* end switch (opt) */
6786         return (error);
6787 }
6788
6789 int
6790 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6791 {
6792         void *optval = NULL;
6793         size_t optsize = 0;
6794         void *p;
6795         int error = 0;
6796         struct sctp_inpcb *inp;
6797
6798         if ((sopt->sopt_level == SOL_SOCKET) &&
6799             (sopt->sopt_name == SO_SETFIB)) {
6800                 inp = (struct sctp_inpcb *)so->so_pcb;
6801                 if (inp == NULL) {
6802                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6803                         return (EINVAL);
6804                 }
6805                 SCTP_INP_WLOCK(inp);
6806                 inp->fibnum = so->so_fibnum;
6807                 SCTP_INP_WUNLOCK(inp);
6808                 return (0);
6809         }
6810         if (sopt->sopt_level != IPPROTO_SCTP) {
6811                 /* wrong proto level... send back up to IP */
6812 #ifdef INET6
6813                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6814                         error = ip6_ctloutput(so, sopt);
6815 #endif                          /* INET6 */
6816 #if defined(INET) && defined(INET6)
6817                 else
6818 #endif
6819 #ifdef INET
6820                         error = ip_ctloutput(so, sopt);
6821 #endif
6822                 return (error);
6823         }
6824         optsize = sopt->sopt_valsize;
6825         if (optsize) {
6826                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6827                 if (optval == NULL) {
6828                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6829                         return (ENOBUFS);
6830                 }
6831                 error = sooptcopyin(sopt, optval, optsize, optsize);
6832                 if (error) {
6833                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6834                         goto out;
6835                 }
6836         }
6837         p = (void *)sopt->sopt_td;
6838         if (sopt->sopt_dir == SOPT_SET) {
6839                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6840         } else if (sopt->sopt_dir == SOPT_GET) {
6841                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6842         } else {
6843                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6844                 error = EINVAL;
6845         }
6846         if ((error == 0) && (optval != NULL)) {
6847                 error = sooptcopyout(sopt, optval, optsize);
6848                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6849         } else if (optval != NULL) {
6850                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6851         }
6852 out:
6853         return (error);
6854 }
6855
6856 #ifdef INET
6857 static int
6858 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6859 {
6860         int error = 0;
6861         int create_lock_on = 0;
6862         uint32_t vrf_id;
6863         struct sctp_inpcb *inp;
6864         struct sctp_tcb *stcb = NULL;
6865
6866         inp = (struct sctp_inpcb *)so->so_pcb;
6867         if (inp == NULL) {
6868                 /* I made the same as TCP since we are not setup? */
6869                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6870                 return (ECONNRESET);
6871         }
6872         if (addr == NULL) {
6873                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6874                 return EINVAL;
6875         }
6876         switch (addr->sa_family) {
6877 #ifdef INET6
6878         case AF_INET6:
6879                 {
6880                         struct sockaddr_in6 *sin6p;
6881
6882                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6883                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6884                                 return (EINVAL);
6885                         }
6886                         sin6p = (struct sockaddr_in6 *)addr;
6887                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6888                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6889                                 return (error);
6890                         }
6891                         break;
6892                 }
6893 #endif
6894 #ifdef INET
6895         case AF_INET:
6896                 {
6897                         struct sockaddr_in *sinp;
6898
6899                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6900                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6901                                 return (EINVAL);
6902                         }
6903                         sinp = (struct sockaddr_in *)addr;
6904                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6905                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6906                                 return (error);
6907                         }
6908                         break;
6909                 }
6910 #endif
6911         default:
6912                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6913                 return (EAFNOSUPPORT);
6914         }
6915         SCTP_INP_INCR_REF(inp);
6916         SCTP_ASOC_CREATE_LOCK(inp);
6917         create_lock_on = 1;
6918
6919
6920         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6921             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6922                 /* Should I really unlock ? */
6923                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6924                 error = EFAULT;
6925                 goto out_now;
6926         }
6927 #ifdef INET6
6928         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6929             (addr->sa_family == AF_INET6)) {
6930                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6931                 error = EINVAL;
6932                 goto out_now;
6933         }
6934 #endif
6935         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6936             SCTP_PCB_FLAGS_UNBOUND) {
6937                 /* Bind a ephemeral port */
6938                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6939                 if (error) {
6940                         goto out_now;
6941                 }
6942         }
6943         /* Now do we connect? */
6944         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6945             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6946                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6947                 error = EINVAL;
6948                 goto out_now;
6949         }
6950         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6951             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6952                 /* We are already connected AND the TCP model */
6953                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6954                 error = EADDRINUSE;
6955                 goto out_now;
6956         }
6957         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6958                 SCTP_INP_RLOCK(inp);
6959                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6960                 SCTP_INP_RUNLOCK(inp);
6961         } else {
6962                 /*
6963                  * We increment here since sctp_findassociation_ep_addr()
6964                  * will do a decrement if it finds the stcb as long as the
6965                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6966                  */
6967                 SCTP_INP_INCR_REF(inp);
6968                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6969                 if (stcb == NULL) {
6970                         SCTP_INP_DECR_REF(inp);
6971                 } else {
6972                         SCTP_TCB_UNLOCK(stcb);
6973                 }
6974         }
6975         if (stcb != NULL) {
6976                 /* Already have or am bring up an association */
6977                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6978                 error = EALREADY;
6979                 goto out_now;
6980         }
6981         vrf_id = inp->def_vrf_id;
6982         /* We are GOOD to go */
6983         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
6984             inp->sctp_ep.pre_open_stream_count,
6985             inp->sctp_ep.port, p);
6986         if (stcb == NULL) {
6987                 /* Gak! no memory */
6988                 goto out_now;
6989         }
6990         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6991                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6992                 /* Set the connected flag so we can queue data */
6993                 soisconnecting(so);
6994         }
6995         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6996         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6997
6998         /* initialize authentication parameters for the assoc */
6999         sctp_initialize_auth_params(inp, stcb);
7000
7001         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7002         SCTP_TCB_UNLOCK(stcb);
7003 out_now:
7004         if (create_lock_on) {
7005                 SCTP_ASOC_CREATE_UNLOCK(inp);
7006         }
7007         SCTP_INP_DECR_REF(inp);
7008         return (error);
7009 }
7010 #endif
7011
7012 int
7013 sctp_listen(struct socket *so, int backlog, struct thread *p)
7014 {
7015         /*
7016          * Note this module depends on the protocol processing being called
7017          * AFTER any socket level flags and backlog are applied to the
7018          * socket. The traditional way that the socket flags are applied is
7019          * AFTER protocol processing. We have made a change to the
7020          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7021          * place if the socket API for SCTP is to work properly.
7022          */
7023
7024         int error = 0;
7025         struct sctp_inpcb *inp;
7026
7027         inp = (struct sctp_inpcb *)so->so_pcb;
7028         if (inp == NULL) {
7029                 /* I made the same as TCP since we are not setup? */
7030                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7031                 return (ECONNRESET);
7032         }
7033         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7034                 /* See if we have a listener */
7035                 struct sctp_inpcb *tinp;
7036                 union sctp_sockstore store;
7037
7038                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7039                         /* not bound all */
7040                         struct sctp_laddr *laddr;
7041
7042                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7043                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7044                                 switch (store.sa.sa_family) {
7045 #ifdef INET
7046                                 case AF_INET:
7047                                         store.sin.sin_port = inp->sctp_lport;
7048                                         break;
7049 #endif
7050 #ifdef INET6
7051                                 case AF_INET6:
7052                                         store.sin6.sin6_port = inp->sctp_lport;
7053                                         break;
7054 #endif
7055                                 default:
7056                                         break;
7057                                 }
7058                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7059                                 if (tinp && (tinp != inp) &&
7060                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7061                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7062                                     (tinp->sctp_socket->so_qlimit)) {
7063                                         /*
7064                                          * we have a listener already and
7065                                          * its not this inp.
7066                                          */
7067                                         SCTP_INP_DECR_REF(tinp);
7068                                         return (EADDRINUSE);
7069                                 } else if (tinp) {
7070                                         SCTP_INP_DECR_REF(tinp);
7071                                 }
7072                         }
7073                 } else {
7074                         /* Setup a local addr bound all */
7075                         memset(&store, 0, sizeof(store));
7076 #ifdef INET6
7077                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7078                                 store.sa.sa_family = AF_INET6;
7079                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7080                         }
7081 #endif
7082 #ifdef INET
7083                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7084                                 store.sa.sa_family = AF_INET;
7085                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7086                         }
7087 #endif
7088                         switch (store.sa.sa_family) {
7089 #ifdef INET
7090                         case AF_INET:
7091                                 store.sin.sin_port = inp->sctp_lport;
7092                                 break;
7093 #endif
7094 #ifdef INET6
7095                         case AF_INET6:
7096                                 store.sin6.sin6_port = inp->sctp_lport;
7097                                 break;
7098 #endif
7099                         default:
7100                                 break;
7101                         }
7102                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7103                         if (tinp && (tinp != inp) &&
7104                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7105                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7106                             (tinp->sctp_socket->so_qlimit)) {
7107                                 /*
7108                                  * we have a listener already and its not
7109                                  * this inp.
7110                                  */
7111                                 SCTP_INP_DECR_REF(tinp);
7112                                 return (EADDRINUSE);
7113                         } else if (tinp) {
7114                                 SCTP_INP_DECR_REF(tinp);
7115                         }
7116                 }
7117         }
7118         SCTP_INP_RLOCK(inp);
7119 #ifdef SCTP_LOCK_LOGGING
7120         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7121                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7122         }
7123 #endif
7124         SOCK_LOCK(so);
7125         error = solisten_proto_check(so);
7126         SOCK_UNLOCK(so);
7127         if (error) {
7128                 SCTP_INP_RUNLOCK(inp);
7129                 return (error);
7130         }
7131         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7132             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7133                 /*
7134                  * The unlucky case - We are in the tcp pool with this guy.
7135                  * - Someone else is in the main inp slot. - We must move
7136                  * this guy (the listener) to the main slot - We must then
7137                  * move the guy that was listener to the TCP Pool.
7138                  */
7139                 if (sctp_swap_inpcb_for_listen(inp)) {
7140                         SCTP_INP_RUNLOCK(inp);
7141                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7142                         return (EADDRINUSE);
7143                 }
7144         }
7145         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7146             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7147                 /* We are already connected AND the TCP model */
7148                 SCTP_INP_RUNLOCK(inp);
7149                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7150                 return (EADDRINUSE);
7151         }
7152         SCTP_INP_RUNLOCK(inp);
7153         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7154                 /* We must do a bind. */
7155                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7156                         /* bind error, probably perm */
7157                         return (error);
7158                 }
7159         }
7160         SOCK_LOCK(so);
7161         /* It appears for 7.0 and on, we must always call this. */
7162         solisten_proto(so, backlog);
7163         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7164                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7165                 so->so_options &= ~SO_ACCEPTCONN;
7166         }
7167         if (backlog == 0) {
7168                 /* turning off listen */
7169                 so->so_options &= ~SO_ACCEPTCONN;
7170         }
7171         SOCK_UNLOCK(so);
7172         return (error);
7173 }
7174
7175 static int sctp_defered_wakeup_cnt = 0;
7176
7177 int
7178 sctp_accept(struct socket *so, struct sockaddr **addr)
7179 {
7180         struct sctp_tcb *stcb;
7181         struct sctp_inpcb *inp;
7182         union sctp_sockstore store;
7183 #ifdef INET6
7184         int error;
7185 #endif
7186         inp = (struct sctp_inpcb *)so->so_pcb;
7187
7188         if (inp == NULL) {
7189                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7190                 return (ECONNRESET);
7191         }
7192         SCTP_INP_RLOCK(inp);
7193         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7194                 SCTP_INP_RUNLOCK(inp);
7195                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7196                 return (EOPNOTSUPP);
7197         }
7198         if (so->so_state & SS_ISDISCONNECTED) {
7199                 SCTP_INP_RUNLOCK(inp);
7200                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7201                 return (ECONNABORTED);
7202         }
7203         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7204         if (stcb == NULL) {
7205                 SCTP_INP_RUNLOCK(inp);
7206                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7207                 return (ECONNRESET);
7208         }
7209         SCTP_TCB_LOCK(stcb);
7210         SCTP_INP_RUNLOCK(inp);
7211         store = stcb->asoc.primary_destination->ro._l_addr;
7212         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7213         SCTP_TCB_UNLOCK(stcb);
7214         switch (store.sa.sa_family) {
7215 #ifdef INET
7216         case AF_INET:
7217                 {
7218                         struct sockaddr_in *sin;
7219
7220                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7221                         if (sin == NULL)
7222                                 return (ENOMEM);
7223                         sin->sin_family = AF_INET;
7224                         sin->sin_len = sizeof(*sin);
7225                         sin->sin_port = store.sin.sin_port;
7226                         sin->sin_addr = store.sin.sin_addr;
7227                         *addr = (struct sockaddr *)sin;
7228                         break;
7229                 }
7230 #endif
7231 #ifdef INET6
7232         case AF_INET6:
7233                 {
7234                         struct sockaddr_in6 *sin6;
7235
7236                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7237                         if (sin6 == NULL)
7238                                 return (ENOMEM);
7239                         sin6->sin6_family = AF_INET6;
7240                         sin6->sin6_len = sizeof(*sin6);
7241                         sin6->sin6_port = store.sin6.sin6_port;
7242                         sin6->sin6_addr = store.sin6.sin6_addr;
7243                         if ((error = sa6_recoverscope(sin6)) != 0) {
7244                                 SCTP_FREE_SONAME(sin6);
7245                                 return (error);
7246                         }
7247                         *addr = (struct sockaddr *)sin6;
7248                         break;
7249                 }
7250 #endif
7251         default:
7252                 /* TSNH */
7253                 break;
7254         }
7255         /* Wake any delayed sleep action */
7256         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7257                 SCTP_INP_WLOCK(inp);
7258                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7259                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7260                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7261                         SCTP_INP_WUNLOCK(inp);
7262                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7263                         if (sowriteable(inp->sctp_socket)) {
7264                                 sowwakeup_locked(inp->sctp_socket);
7265                         } else {
7266                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7267                         }
7268                         SCTP_INP_WLOCK(inp);
7269                 }
7270                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7271                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7272                         SCTP_INP_WUNLOCK(inp);
7273                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7274                         if (soreadable(inp->sctp_socket)) {
7275                                 sctp_defered_wakeup_cnt++;
7276                                 sorwakeup_locked(inp->sctp_socket);
7277                         } else {
7278                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7279                         }
7280                         SCTP_INP_WLOCK(inp);
7281                 }
7282                 SCTP_INP_WUNLOCK(inp);
7283         }
7284         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7285                 SCTP_TCB_LOCK(stcb);
7286                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7287                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7288         }
7289         return (0);
7290 }
7291
7292 #ifdef INET
7293 int
7294 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7295 {
7296         struct sockaddr_in *sin;
7297         uint32_t vrf_id;
7298         struct sctp_inpcb *inp;
7299         struct sctp_ifa *sctp_ifa;
7300
7301         /*
7302          * Do the malloc first in case it blocks.
7303          */
7304         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7305         if (sin == NULL)
7306                 return (ENOMEM);
7307         sin->sin_family = AF_INET;
7308         sin->sin_len = sizeof(*sin);
7309         inp = (struct sctp_inpcb *)so->so_pcb;
7310         if (!inp) {
7311                 SCTP_FREE_SONAME(sin);
7312                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7313                 return (ECONNRESET);
7314         }
7315         SCTP_INP_RLOCK(inp);
7316         sin->sin_port = inp->sctp_lport;
7317         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7318                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7319                         struct sctp_tcb *stcb;
7320                         struct sockaddr_in *sin_a;
7321                         struct sctp_nets *net;
7322                         int fnd;
7323
7324                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7325                         if (stcb == NULL) {
7326                                 goto notConn;
7327                         }
7328                         fnd = 0;
7329                         sin_a = NULL;
7330                         SCTP_TCB_LOCK(stcb);
7331                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7332                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7333                                 if (sin_a == NULL)
7334                                         /* this will make coverity happy */
7335                                         continue;
7336
7337                                 if (sin_a->sin_family == AF_INET) {
7338                                         fnd = 1;
7339                                         break;
7340                                 }
7341                         }
7342                         if ((!fnd) || (sin_a == NULL)) {
7343                                 /* punt */
7344                                 SCTP_TCB_UNLOCK(stcb);
7345                                 goto notConn;
7346                         }
7347                         vrf_id = inp->def_vrf_id;
7348                         sctp_ifa = sctp_source_address_selection(inp,
7349                             stcb,
7350                             (sctp_route_t *)&net->ro,
7351                             net, 0, vrf_id);
7352                         if (sctp_ifa) {
7353                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7354                                 sctp_free_ifa(sctp_ifa);
7355                         }
7356                         SCTP_TCB_UNLOCK(stcb);
7357                 } else {
7358                         /* For the bound all case you get back 0 */
7359         notConn:
7360                         sin->sin_addr.s_addr = 0;
7361                 }
7362
7363         } else {
7364                 /* Take the first IPv4 address in the list */
7365                 struct sctp_laddr *laddr;
7366                 int fnd = 0;
7367
7368                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7369                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7370                                 struct sockaddr_in *sin_a;
7371
7372                                 sin_a = &laddr->ifa->address.sin;
7373                                 sin->sin_addr = sin_a->sin_addr;
7374                                 fnd = 1;
7375                                 break;
7376                         }
7377                 }
7378                 if (!fnd) {
7379                         SCTP_FREE_SONAME(sin);
7380                         SCTP_INP_RUNLOCK(inp);
7381                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7382                         return (ENOENT);
7383                 }
7384         }
7385         SCTP_INP_RUNLOCK(inp);
7386         (*addr) = (struct sockaddr *)sin;
7387         return (0);
7388 }
7389
7390 int
7391 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7392 {
7393         struct sockaddr_in *sin;
7394         int fnd;
7395         struct sockaddr_in *sin_a;
7396         struct sctp_inpcb *inp;
7397         struct sctp_tcb *stcb;
7398         struct sctp_nets *net;
7399
7400         /* Do the malloc first in case it blocks. */
7401         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7402         if (sin == NULL)
7403                 return (ENOMEM);
7404         sin->sin_family = AF_INET;
7405         sin->sin_len = sizeof(*sin);
7406
7407         inp = (struct sctp_inpcb *)so->so_pcb;
7408         if ((inp == NULL) ||
7409             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7410                 /* UDP type and listeners will drop out here */
7411                 SCTP_FREE_SONAME(sin);
7412                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7413                 return (ENOTCONN);
7414         }
7415         SCTP_INP_RLOCK(inp);
7416         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7417         if (stcb) {
7418                 SCTP_TCB_LOCK(stcb);
7419         }
7420         SCTP_INP_RUNLOCK(inp);
7421         if (stcb == NULL) {
7422                 SCTP_FREE_SONAME(sin);
7423                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7424                 return (ECONNRESET);
7425         }
7426         fnd = 0;
7427         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7428                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7429                 if (sin_a->sin_family == AF_INET) {
7430                         fnd = 1;
7431                         sin->sin_port = stcb->rport;
7432                         sin->sin_addr = sin_a->sin_addr;
7433                         break;
7434                 }
7435         }
7436         SCTP_TCB_UNLOCK(stcb);
7437         if (!fnd) {
7438                 /* No IPv4 address */
7439                 SCTP_FREE_SONAME(sin);
7440                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7441                 return (ENOENT);
7442         }
7443         (*addr) = (struct sockaddr *)sin;
7444         return (0);
7445 }
7446
7447 struct pr_usrreqs sctp_usrreqs = {
7448         .pru_abort = sctp_abort,
7449         .pru_accept = sctp_accept,
7450         .pru_attach = sctp_attach,
7451         .pru_bind = sctp_bind,
7452         .pru_connect = sctp_connect,
7453         .pru_control = in_control,
7454         .pru_close = sctp_close,
7455         .pru_detach = sctp_close,
7456         .pru_sopoll = sopoll_generic,
7457         .pru_flush = sctp_flush,
7458         .pru_disconnect = sctp_disconnect,
7459         .pru_listen = sctp_listen,
7460         .pru_peeraddr = sctp_peeraddr,
7461         .pru_send = sctp_sendm,
7462         .pru_shutdown = sctp_shutdown,
7463         .pru_sockaddr = sctp_ingetaddr,
7464         .pru_sosend = sctp_sosend,
7465         .pru_soreceive = sctp_soreceive
7466 };
7467 #endif