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