sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56
  57
  58
  59 extern const struct sctp_cc_functions sctp_cc_functions[];
  60 extern const struct sctp_ss_functions sctp_ss_functions[];
  61
  62 void
  63 sctp_init(void)
  64 {
  65         u_long sb_max_adj;
  66
  67         /* Initialize and modify the sysctled variables */
  68         sctp_init_sysctls();
  69         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  70                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  71         /*
  72          * Allow a user to take no more than 1/2 the number of clusters or
  73          * the SB_MAX whichever is smaller for the send window.
  74          */
  75         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  76         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  77             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  78         /*
  79          * Now for the recv window, should we take the same amount? or
  80          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  81          * now I will just copy.
  82          */
  83         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  84         SCTP_BASE_VAR(first_time) = 0;
  85         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  86         sctp_pcb_init();
  87 #if defined(SCTP_PACKET_LOGGING)
  88         SCTP_BASE_VAR(packet_log_writers) = 0;
  89         SCTP_BASE_VAR(packet_log_end) = 0;
  90         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  91 #endif
  92 }
  93
  94 #ifdef VIMAGE
  95 static void
  96 sctp_finish(void *unused __unused)
  97 {
  98         sctp_pcb_finish();
  99 }
 100
 101 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 102 #endif
 103
 104 void
 105 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 106 {
 107         struct sctp_tmit_chunk *chk;
 108         uint16_t overhead;
 109
 110         /* Adjust that too */
 111         stcb->asoc.smallest_mtu = nxtsz;
 112         /* now off to subtract IP_DF flag if needed */
 113         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 114         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 115                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 116         }
 117         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 118                 if ((chk->send_size + overhead) > nxtsz) {
 119                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 120                 }
 121         }
 122         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 123                 if ((chk->send_size + overhead) > nxtsz) {
 124                         /*
 125                          * For this guy we also mark for immediate resend
 126                          * since we sent to big of chunk
 127                          */
 128                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 129                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 130                                 sctp_flight_size_decrease(chk);
 131                                 sctp_total_flight_decrease(stcb, chk);
 132                                 chk->sent = SCTP_DATAGRAM_RESEND;
 133                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 134                                 chk->rec.data.doing_fast_retransmit = 0;
 135                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 136                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 137                                             chk->whoTo->flight_size,
 138                                             chk->book_size,
 139                                             (uint32_t)(uintptr_t)chk->whoTo,
 140                                             chk->rec.data.tsn);
 141                                 }
 142                                 /* Clear any time so NO RTT is being done */
 143                                 chk->do_rtt = 0;
 144                         }
 145                 }
 146         }
 147 }
 148
 149 #ifdef INET
 150 void
 151 sctp_notify(struct sctp_inpcb *inp,
 152     struct sctp_tcb *stcb,
 153     struct sctp_nets *net,
 154     uint8_t icmp_type,
 155     uint8_t icmp_code,
 156     uint16_t ip_len,
 157     uint32_t next_mtu)
 158 {
 159 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 160         struct socket *so;
 161 #endif
 162         int timer_stopped;
 163
 164         if (icmp_type != ICMP_UNREACH) {
 165                 /* We only care about unreachable */
 166                 SCTP_TCB_UNLOCK(stcb);
 167                 return;
 168         }
 169         if ((icmp_code == ICMP_UNREACH_NET) ||
 170             (icmp_code == ICMP_UNREACH_HOST) ||
 171             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 172             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 173             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 174             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 175             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 176             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 177                 /* Mark the net unreachable. */
 178                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 179                         /* OK, that destination is NOT reachable. */
 180                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 181                         net->dest_state &= ~SCTP_ADDR_PF;
 182                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 183                             stcb, 0,
 184                             (void *)net, SCTP_SO_NOT_LOCKED);
 185                 }
 186                 SCTP_TCB_UNLOCK(stcb);
 187         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 188             (icmp_code == ICMP_UNREACH_PORT)) {
 189                 /* Treat it like an ABORT. */
 190                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 191 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 192                 so = SCTP_INP_SO(inp);
 193                 atomic_add_int(&stcb->asoc.refcnt, 1);
 194                 SCTP_TCB_UNLOCK(stcb);
 195                 SCTP_SOCKET_LOCK(so, 1);
 196                 SCTP_TCB_LOCK(stcb);
 197                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 198 #endif
 199                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 200                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 201 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 202                 SCTP_SOCKET_UNLOCK(so, 1);
 203                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 204 #endif
 205                 /* no need to unlock here, since the TCB is gone */
 206         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 207                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 208                         SCTP_TCB_UNLOCK(stcb);
 209                         return;
 210                 }
 211                 /* Find the next (smaller) MTU */
 212                 if (next_mtu == 0) {
 213                         /*
 214                          * Old type router that does not tell us what the
 215                          * next MTU is. Rats we will have to guess (in a
 216                          * educated fashion of course).
 217                          */
 218                         next_mtu = sctp_get_prev_mtu(ip_len);
 219                 }
 220                 /* Stop the PMTU timer. */
 221                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 222                         timer_stopped = 1;
 223                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 224                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 225                 } else {
 226                         timer_stopped = 0;
 227                 }
 228                 /* Update the path MTU. */
 229                 if (net->port) {
 230                         next_mtu -= sizeof(struct udphdr);
 231                 }
 232                 if (net->mtu > next_mtu) {
 233                         net->mtu = next_mtu;
 234                         if (net->port) {
 235                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 236                         } else {
 237                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 238                         }
 239                 }
 240                 /* Update the association MTU */
 241                 if (stcb->asoc.smallest_mtu > next_mtu) {
 242                         sctp_pathmtu_adjustment(stcb, next_mtu);
 243                 }
 244                 /* Finally, start the PMTU timer if it was running before. */
 245                 if (timer_stopped) {
 246                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 247                 }
 248                 SCTP_TCB_UNLOCK(stcb);
 249         } else {
 250                 SCTP_TCB_UNLOCK(stcb);
 251         }
 252 }
 253
 254 void
 255 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 256 {
 257         struct ip *outer_ip;
 258         struct ip *inner_ip;
 259         struct sctphdr *sh;
 260         struct icmp *icmp;
 261         struct sctp_inpcb *inp;
 262         struct sctp_tcb *stcb;
 263         struct sctp_nets *net;
 264         struct sctp_init_chunk *ch;
 265         struct sockaddr_in src, dst;
 266
 267         if (sa->sa_family != AF_INET ||
 268             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 269                 return;
 270         }
 271         if (PRC_IS_REDIRECT(cmd)) {
 272                 vip = NULL;
 273         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 274                 return;
 275         }
 276         if (vip != NULL) {
 277                 inner_ip = (struct ip *)vip;
 278                 icmp = (struct icmp *)((caddr_t)inner_ip -
 279                     (sizeof(struct icmp) - sizeof(struct ip)));
 280                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 281                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 282                 memset(&src, 0, sizeof(struct sockaddr_in));
 283                 src.sin_family = AF_INET;
 284                 src.sin_len = sizeof(struct sockaddr_in);
 285                 src.sin_port = sh->src_port;
 286                 src.sin_addr = inner_ip->ip_src;
 287                 memset(&dst, 0, sizeof(struct sockaddr_in));
 288                 dst.sin_family = AF_INET;
 289                 dst.sin_len = sizeof(struct sockaddr_in);
 290                 dst.sin_port = sh->dest_port;
 291                 dst.sin_addr = inner_ip->ip_dst;
 292                 /*
 293                  * 'dst' holds the dest of the packet that failed to be
 294                  * sent. 'src' holds our local endpoint address. Thus we
 295                  * reverse the dst and the src in the lookup.
 296                  */
 297                 inp = NULL;
 298                 net = NULL;
 299                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 300                     (struct sockaddr *)&src,
 301                     &inp, &net, 1,
 302                     SCTP_DEFAULT_VRFID);
 303                 if ((stcb != NULL) &&
 304                     (net != NULL) &&
 305                     (inp != NULL)) {
 306                         /* Check the verification tag */
 307                         if (ntohl(sh->v_tag) != 0) {
 308                                 /*
 309                                  * This must be the verification tag used
 310                                  * for sending out packets. We don't
 311                                  * consider packets reflecting the
 312                                  * verification tag.
 313                                  */
 314                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 315                                         SCTP_TCB_UNLOCK(stcb);
 316                                         return;
 317                                 }
 318                         } else {
 319                                 if (ntohs(outer_ip->ip_len) >=
 320                                     sizeof(struct ip) +
 321                                     8 + (inner_ip->ip_hl << 2) + 20) {
 322                                         /*
 323                                          * In this case we can check if we
 324                                          * got an INIT chunk and if the
 325                                          * initiate tag matches.
 326                                          */
 327                                         ch = (struct sctp_init_chunk *)(sh + 1);
 328                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 329                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 330                                                 SCTP_TCB_UNLOCK(stcb);
 331                                                 return;
 332                                         }
 333                                 } else {
 334                                         SCTP_TCB_UNLOCK(stcb);
 335                                         return;
 336                                 }
 337                         }
 338                         sctp_notify(inp, stcb, net,
 339                             icmp->icmp_type,
 340                             icmp->icmp_code,
 341                             ntohs(inner_ip->ip_len),
 342                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 343                 } else {
 344                         if ((stcb == NULL) && (inp != NULL)) {
 345                                 /* reduce ref-count */
 346                                 SCTP_INP_WLOCK(inp);
 347                                 SCTP_INP_DECR_REF(inp);
 348                                 SCTP_INP_WUNLOCK(inp);
 349                         }
 350                         if (stcb) {
 351                                 SCTP_TCB_UNLOCK(stcb);
 352                         }
 353                 }
 354         }
 355         return;
 356 }
 357 #endif
 358
 359 static int
 360 sctp_getcred(SYSCTL_HANDLER_ARGS)
 361 {
 362         struct xucred xuc;
 363         struct sockaddr_in addrs[2];
 364         struct sctp_inpcb *inp;
 365         struct sctp_nets *net;
 366         struct sctp_tcb *stcb;
 367         int error;
 368         uint32_t vrf_id;
 369
 370         /* FIX, for non-bsd is this right? */
 371         vrf_id = SCTP_DEFAULT_VRFID;
 372
 373         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 374
 375         if (error)
 376                 return (error);
 377
 378         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 379         if (error)
 380                 return (error);
 381
 382         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 383             sintosa(&addrs[0]),
 384             &inp, &net, 1, vrf_id);
 385         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 386                 if ((inp != NULL) && (stcb == NULL)) {
 387                         /* reduce ref-count */
 388                         SCTP_INP_WLOCK(inp);
 389                         SCTP_INP_DECR_REF(inp);
 390                         goto cred_can_cont;
 391                 }
 392
 393                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 394                 error = ENOENT;
 395                 goto out;
 396         }
 397         SCTP_TCB_UNLOCK(stcb);
 398         /*
 399          * We use the write lock here, only since in the error leg we need
 400          * it. If we used RLOCK, then we would have to
 401          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 402          * Better to use higher wlock.
 403          */
 404         SCTP_INP_WLOCK(inp);
 405 cred_can_cont:
 406         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 407         if (error) {
 408                 SCTP_INP_WUNLOCK(inp);
 409                 goto out;
 410         }
 411         cru2x(inp->sctp_socket->so_cred, &xuc);
 412         SCTP_INP_WUNLOCK(inp);
 413         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 414 out:
 415         return (error);
 416 }
 417
 418 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 419     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 420
 421
 422 #ifdef INET
 423 static void
 424 sctp_abort(struct socket *so)
 425 {
 426         struct sctp_inpcb *inp;
 427         uint32_t flags;
 428
 429         inp = (struct sctp_inpcb *)so->so_pcb;
 430         if (inp == NULL) {
 431                 return;
 432         }
 433
 434 sctp_must_try_again:
 435         flags = inp->sctp_flags;
 436 #ifdef SCTP_LOG_CLOSING
 437         sctp_log_closing(inp, NULL, 17);
 438 #endif
 439         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 440             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 441 #ifdef SCTP_LOG_CLOSING
 442                 sctp_log_closing(inp, NULL, 16);
 443 #endif
 444                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 445                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 446                 SOCK_LOCK(so);
 447                 SCTP_SB_CLEAR(so->so_snd);
 448                 /*
 449                  * same for the rcv ones, they are only here for the
 450                  * accounting/select.
 451                  */
 452                 SCTP_SB_CLEAR(so->so_rcv);
 453
 454                 /* Now null out the reference, we are completely detached. */
 455                 so->so_pcb = NULL;
 456                 SOCK_UNLOCK(so);
 457         } else {
 458                 flags = inp->sctp_flags;
 459                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 460                         goto sctp_must_try_again;
 461                 }
 462         }
 463         return;
 464 }
 465
 466 static int
 467 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 468 {
 469         struct sctp_inpcb *inp;
 470         struct inpcb *ip_inp;
 471         int error;
 472         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 473
 474         inp = (struct sctp_inpcb *)so->so_pcb;
 475         if (inp != NULL) {
 476                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 477                 return (EINVAL);
 478         }
 479         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 480                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 481                 if (error) {
 482                         return (error);
 483                 }
 484         }
 485         error = sctp_inpcb_alloc(so, vrf_id);
 486         if (error) {
 487                 return (error);
 488         }
 489         inp = (struct sctp_inpcb *)so->so_pcb;
 490         SCTP_INP_WLOCK(inp);
 491         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 492         ip_inp = &inp->ip_inp.inp;
 493         ip_inp->inp_vflag |= INP_IPV4;
 494         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 495         SCTP_INP_WUNLOCK(inp);
 496         return (0);
 497 }
 498
 499 static int
 500 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 501 {
 502         struct sctp_inpcb *inp;
 503
 504         inp = (struct sctp_inpcb *)so->so_pcb;
 505         if (inp == NULL) {
 506                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 507                 return (EINVAL);
 508         }
 509         if (addr != NULL) {
 510                 if ((addr->sa_family != AF_INET) ||
 511                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 512                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 513                         return (EINVAL);
 514                 }
 515         }
 516         return (sctp_inpcb_bind(so, addr, NULL, p));
 517 }
 518
 519 #endif
 520 void
 521 sctp_close(struct socket *so)
 522 {
 523         struct sctp_inpcb *inp;
 524         uint32_t flags;
 525
 526         inp = (struct sctp_inpcb *)so->so_pcb;
 527         if (inp == NULL)
 528                 return;
 529
 530         /*
 531          * Inform all the lower layer assoc that we are done.
 532          */
 533 sctp_must_try_again:
 534         flags = inp->sctp_flags;
 535 #ifdef SCTP_LOG_CLOSING
 536         sctp_log_closing(inp, NULL, 17);
 537 #endif
 538         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 539             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 540                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 541                     (so->so_rcv.sb_cc > 0)) {
 542 #ifdef SCTP_LOG_CLOSING
 543                         sctp_log_closing(inp, NULL, 13);
 544 #endif
 545                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 546                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 547                 } else {
 548 #ifdef SCTP_LOG_CLOSING
 549                         sctp_log_closing(inp, NULL, 14);
 550 #endif
 551                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 552                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 553                 }
 554                 /*
 555                  * The socket is now detached, no matter what the state of
 556                  * the SCTP association.
 557                  */
 558                 SOCK_LOCK(so);
 559                 SCTP_SB_CLEAR(so->so_snd);
 560                 /*
 561                  * same for the rcv ones, they are only here for the
 562                  * accounting/select.
 563                  */
 564                 SCTP_SB_CLEAR(so->so_rcv);
 565
 566                 /* Now null out the reference, we are completely detached. */
 567                 so->so_pcb = NULL;
 568                 SOCK_UNLOCK(so);
 569         } else {
 570                 flags = inp->sctp_flags;
 571                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 572                         goto sctp_must_try_again;
 573                 }
 574         }
 575         return;
 576 }
 577
 578
 579 int
 580 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 581     struct mbuf *control, struct thread *p);
 582
 583
 584 int
 585 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 586     struct mbuf *control, struct thread *p)
 587 {
 588         struct sctp_inpcb *inp;
 589         int error;
 590
 591         inp = (struct sctp_inpcb *)so->so_pcb;
 592         if (inp == NULL) {
 593                 if (control) {
 594                         sctp_m_freem(control);
 595                         control = NULL;
 596                 }
 597                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 598                 sctp_m_freem(m);
 599                 return (EINVAL);
 600         }
 601         /* Got to have an to address if we are NOT a connected socket */
 602         if ((addr == NULL) &&
 603             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 604             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 605                 goto connected_type;
 606         } else if (addr == NULL) {
 607                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 608                 error = EDESTADDRREQ;
 609                 sctp_m_freem(m);
 610                 if (control) {
 611                         sctp_m_freem(control);
 612                         control = NULL;
 613                 }
 614                 return (error);
 615         }
 616 #ifdef INET6
 617         if (addr->sa_family != AF_INET) {
 618                 /* must be a v4 address! */
 619                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 620                 sctp_m_freem(m);
 621                 if (control) {
 622                         sctp_m_freem(control);
 623                         control = NULL;
 624                 }
 625                 error = EDESTADDRREQ;
 626                 return (error);
 627         }
 628 #endif                          /* INET6 */
 629 connected_type:
 630         /* now what about control */
 631         if (control) {
 632                 if (inp->control) {
 633                         sctp_m_freem(inp->control);
 634                         inp->control = NULL;
 635                 }
 636                 inp->control = control;
 637         }
 638         /* Place the data */
 639         if (inp->pkt) {
 640                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 641                 inp->pkt_last = m;
 642         } else {
 643                 inp->pkt_last = inp->pkt = m;
 644         }
 645         if (
 646         /* FreeBSD uses a flag passed */
 647             ((flags & PRUS_MORETOCOME) == 0)
 648             ) {
 649                 /*
 650                  * note with the current version this code will only be used
 651                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 652                  * re-defining sosend to use the sctp_sosend. One can
 653                  * optionally switch back to this code (by changing back the
 654                  * definitions) but this is not advisable. This code is used
 655                  * by FreeBSD when sending a file with sendfile() though.
 656                  */
 657                 int ret;
 658
 659                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 660                 inp->pkt = NULL;
 661                 inp->control = NULL;
 662                 return (ret);
 663         } else {
 664                 return (0);
 665         }
 666 }
 667
 668 int
 669 sctp_disconnect(struct socket *so)
 670 {
 671         struct sctp_inpcb *inp;
 672
 673         inp = (struct sctp_inpcb *)so->so_pcb;
 674         if (inp == NULL) {
 675                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 676                 return (ENOTCONN);
 677         }
 678         SCTP_INP_RLOCK(inp);
 679         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 680             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 681                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 682                         /* No connection */
 683                         SCTP_INP_RUNLOCK(inp);
 684                         return (0);
 685                 } else {
 686                         struct sctp_association *asoc;
 687                         struct sctp_tcb *stcb;
 688
 689                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 690                         if (stcb == NULL) {
 691                                 SCTP_INP_RUNLOCK(inp);
 692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 693                                 return (EINVAL);
 694                         }
 695                         SCTP_TCB_LOCK(stcb);
 696                         asoc = &stcb->asoc;
 697                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 698                                 /* We are about to be freed, out of here */
 699                                 SCTP_TCB_UNLOCK(stcb);
 700                                 SCTP_INP_RUNLOCK(inp);
 701                                 return (0);
 702                         }
 703                         if (((so->so_options & SO_LINGER) &&
 704                             (so->so_linger == 0)) ||
 705                             (so->so_rcv.sb_cc > 0)) {
 706                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 707                                         /* Left with Data unread */
 708                                         struct mbuf *op_err;
 709
 710                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 711                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 712                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 713                                 }
 714                                 SCTP_INP_RUNLOCK(inp);
 715                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 716                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 717                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 718                                 }
 719                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 720                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 721                                 /* No unlock tcb assoc is gone */
 722                                 return (0);
 723                         }
 724                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 725                             TAILQ_EMPTY(&asoc->sent_queue) &&
 726                             (asoc->stream_queue_cnt == 0)) {
 727                                 /* there is nothing queued to send, so done */
 728                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 729                                         goto abort_anyway;
 730                                 }
 731                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 732                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 733                                         /* only send SHUTDOWN 1st time thru */
 734                                         struct sctp_nets *netp;
 735
 736                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 737                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 738                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 739                                         }
 740                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 741                                         sctp_stop_timers_for_shutdown(stcb);
 742                                         if (stcb->asoc.alternate) {
 743                                                 netp = stcb->asoc.alternate;
 744                                         } else {
 745                                                 netp = stcb->asoc.primary_destination;
 746                                         }
 747                                         sctp_send_shutdown(stcb, netp);
 748                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 749                                             stcb->sctp_ep, stcb, netp);
 750                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 751                                             stcb->sctp_ep, stcb, netp);
 752                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 753                                 }
 754                         } else {
 755                                 /*
 756                                  * we still got (or just got) data to send,
 757                                  * so set SHUTDOWN_PENDING
 758                                  */
 759                                 /*
 760                                  * XXX sockets draft says that SCTP_EOF
 761                                  * should be sent with no data. currently,
 762                                  * we will allow user data to be sent first
 763                                  * and move to SHUTDOWN-PENDING
 764                                  */
 765                                 struct sctp_nets *netp;
 766
 767                                 if (stcb->asoc.alternate) {
 768                                         netp = stcb->asoc.alternate;
 769                                 } else {
 770                                         netp = stcb->asoc.primary_destination;
 771                                 }
 772
 773                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 774                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 775                                     netp);
 776                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 777                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 778                                 }
 779                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 780                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 781                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 782                                         struct mbuf *op_err;
 783
 784                         abort_anyway:
 785                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 786                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 787                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 788                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 789                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 790                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 791                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 792                                         }
 793                                         SCTP_INP_RUNLOCK(inp);
 794                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 795                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 796                                         return (0);
 797                                 } else {
 798                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 799                                 }
 800                         }
 801                         soisdisconnecting(so);
 802                         SCTP_TCB_UNLOCK(stcb);
 803                         SCTP_INP_RUNLOCK(inp);
 804                         return (0);
 805                 }
 806                 /* not reached */
 807         } else {
 808                 /* UDP model does not support this */
 809                 SCTP_INP_RUNLOCK(inp);
 810                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 811                 return (EOPNOTSUPP);
 812         }
 813 }
 814
 815 int
 816 sctp_flush(struct socket *so, int how)
 817 {
 818         /*
 819          * We will just clear out the values and let subsequent close clear
 820          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 821          * they will not be able to read the data, the socket will block
 822          * that from happening.
 823          */
 824         struct sctp_inpcb *inp;
 825
 826         inp = (struct sctp_inpcb *)so->so_pcb;
 827         if (inp == NULL) {
 828                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 829                 return (EINVAL);
 830         }
 831         SCTP_INP_RLOCK(inp);
 832         /* For the 1 to many model this does nothing */
 833         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 834                 SCTP_INP_RUNLOCK(inp);
 835                 return (0);
 836         }
 837         SCTP_INP_RUNLOCK(inp);
 838         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 839                 /*
 840                  * First make sure the sb will be happy, we don't use these
 841                  * except maybe the count
 842                  */
 843                 SCTP_INP_WLOCK(inp);
 844                 SCTP_INP_READ_LOCK(inp);
 845                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 846                 SCTP_INP_READ_UNLOCK(inp);
 847                 SCTP_INP_WUNLOCK(inp);
 848                 so->so_rcv.sb_cc = 0;
 849                 so->so_rcv.sb_mbcnt = 0;
 850                 so->so_rcv.sb_mb = NULL;
 851         }
 852         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 853                 /*
 854                  * First make sure the sb will be happy, we don't use these
 855                  * except maybe the count
 856                  */
 857                 so->so_snd.sb_cc = 0;
 858                 so->so_snd.sb_mbcnt = 0;
 859                 so->so_snd.sb_mb = NULL;
 860
 861         }
 862         return (0);
 863 }
 864
 865 int
 866 sctp_shutdown(struct socket *so)
 867 {
 868         struct sctp_inpcb *inp;
 869
 870         inp = (struct sctp_inpcb *)so->so_pcb;
 871         if (inp == NULL) {
 872                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 873                 return (EINVAL);
 874         }
 875         SCTP_INP_RLOCK(inp);
 876         /* For UDP model this is a invalid call */
 877         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 878             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 879                 /* Restore the flags that the soshutdown took away. */
 880                 SOCKBUF_LOCK(&so->so_rcv);
 881                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 882                 SOCKBUF_UNLOCK(&so->so_rcv);
 883                 /* This proc will wakeup for read and do nothing (I hope) */
 884                 SCTP_INP_RUNLOCK(inp);
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 886                 return (EOPNOTSUPP);
 887         } else {
 888                 /*
 889                  * Ok, if we reach here its the TCP model and it is either a
 890                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 891                  * against it.
 892                  */
 893                 struct sctp_tcb *stcb;
 894                 struct sctp_association *asoc;
 895                 struct sctp_nets *netp;
 896
 897                 if ((so->so_state &
 898                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 899                         SCTP_INP_RUNLOCK(inp);
 900                         return (ENOTCONN);
 901                 }
 902                 socantsendmore(so);
 903
 904                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 905                 if (stcb == NULL) {
 906                         /*
 907                          * Ok, we hit the case that the shutdown call was
 908                          * made after an abort or something. Nothing to do
 909                          * now.
 910                          */
 911                         SCTP_INP_RUNLOCK(inp);
 912                         return (0);
 913                 }
 914                 SCTP_TCB_LOCK(stcb);
 915                 asoc = &stcb->asoc;
 916                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 917                         SCTP_TCB_UNLOCK(stcb);
 918                         SCTP_INP_RUNLOCK(inp);
 919                         return (0);
 920                 }
 921                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 922                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 923                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 924                         /*
 925                          * If we are not in or before ESTABLISHED, there is
 926                          * no protocol action required.
 927                          */
 928                         SCTP_TCB_UNLOCK(stcb);
 929                         SCTP_INP_RUNLOCK(inp);
 930                         return (0);
 931                 }
 932                 if (stcb->asoc.alternate) {
 933                         netp = stcb->asoc.alternate;
 934                 } else {
 935                         netp = stcb->asoc.primary_destination;
 936                 }
 937                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 938                     TAILQ_EMPTY(&asoc->send_queue) &&
 939                     TAILQ_EMPTY(&asoc->sent_queue) &&
 940                     (asoc->stream_queue_cnt == 0)) {
 941                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 942                                 goto abort_anyway;
 943                         }
 944                         /* there is nothing queued to send, so I'm done... */
 945                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 946                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 947                         sctp_stop_timers_for_shutdown(stcb);
 948                         sctp_send_shutdown(stcb, netp);
 949                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 950                             stcb->sctp_ep, stcb, netp);
 951                 } else {
 952                         /*
 953                          * We still got (or just got) data to send, so set
 954                          * SHUTDOWN_PENDING.
 955                          */
 956                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 957                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 958                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 959                         }
 960                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 961                             TAILQ_EMPTY(&asoc->sent_queue) &&
 962                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 963                                 struct mbuf *op_err;
 964
 965                 abort_anyway:
 966                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 967                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 968                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 969                                     op_err, SCTP_SO_LOCKED);
 970                                 SCTP_INP_RUNLOCK(inp);
 971                                 return (0);
 972                         }
 973                 }
 974                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 975                 /*
 976                  * XXX: Why do this in the case where we have still data
 977                  * queued?
 978                  */
 979                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 980                 SCTP_TCB_UNLOCK(stcb);
 981                 SCTP_INP_RUNLOCK(inp);
 982                 return (0);
 983         }
 984 }
 985
 986 /*
 987  * copies a "user" presentable address and removes embedded scope, etc.
 988  * returns 0 on success, 1 on error
 989  */
 990 static uint32_t
 991 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 992 {
 993 #ifdef INET6
 994         struct sockaddr_in6 lsa6;
 995
 996         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 997             &lsa6);
 998 #endif
 999         memcpy(ss, sa, sa->sa_len);
1000         return (0);
1001 }
1002
1003
1004
1005 /*
1006  * NOTE: assumes addr lock is held
1007  */
1008 static size_t
1009 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1010     struct sctp_tcb *stcb,
1011     size_t limit,
1012     struct sockaddr_storage *sas,
1013     uint32_t vrf_id)
1014 {
1015         struct sctp_ifn *sctp_ifn;
1016         struct sctp_ifa *sctp_ifa;
1017         size_t actual;
1018         int loopback_scope;
1019 #if defined(INET)
1020         int ipv4_local_scope, ipv4_addr_legal;
1021 #endif
1022 #if defined(INET6)
1023         int local_scope, site_scope, ipv6_addr_legal;
1024 #endif
1025         struct sctp_vrf *vrf;
1026
1027         actual = 0;
1028         if (limit <= 0)
1029                 return (actual);
1030
1031         if (stcb) {
1032                 /* Turn on all the appropriate scope */
1033                 loopback_scope = stcb->asoc.scope.loopback_scope;
1034 #if defined(INET)
1035                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1036                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1037 #endif
1038 #if defined(INET6)
1039                 local_scope = stcb->asoc.scope.local_scope;
1040                 site_scope = stcb->asoc.scope.site_scope;
1041                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1042 #endif
1043         } else {
1044                 /* Use generic values for endpoints. */
1045                 loopback_scope = 1;
1046 #if defined(INET)
1047                 ipv4_local_scope = 1;
1048 #endif
1049 #if defined(INET6)
1050                 local_scope = 1;
1051                 site_scope = 1;
1052 #endif
1053                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1054 #if defined(INET6)
1055                         ipv6_addr_legal = 1;
1056 #endif
1057 #if defined(INET)
1058                         if (SCTP_IPV6_V6ONLY(inp)) {
1059                                 ipv4_addr_legal = 0;
1060                         } else {
1061                                 ipv4_addr_legal = 1;
1062                         }
1063 #endif
1064                 } else {
1065 #if defined(INET6)
1066                         ipv6_addr_legal = 0;
1067 #endif
1068 #if defined(INET)
1069                         ipv4_addr_legal = 1;
1070 #endif
1071                 }
1072         }
1073         vrf = sctp_find_vrf(vrf_id);
1074         if (vrf == NULL) {
1075                 return (0);
1076         }
1077         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1078                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1079                         if ((loopback_scope == 0) &&
1080                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1081                                 /* Skip loopback if loopback_scope not set */
1082                                 continue;
1083                         }
1084                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1085                                 if (stcb) {
1086                                         /*
1087                                          * For the BOUND-ALL case, the list
1088                                          * associated with a TCB is Always
1089                                          * considered a reverse list.. i.e.
1090                                          * it lists addresses that are NOT
1091                                          * part of the association. If this
1092                                          * is one of those we must skip it.
1093                                          */
1094                                         if (sctp_is_addr_restricted(stcb,
1095                                             sctp_ifa)) {
1096                                                 continue;
1097                                         }
1098                                 }
1099                                 switch (sctp_ifa->address.sa.sa_family) {
1100 #ifdef INET
1101                                 case AF_INET:
1102                                         if (ipv4_addr_legal) {
1103                                                 struct sockaddr_in *sin;
1104
1105                                                 sin = &sctp_ifa->address.sin;
1106                                                 if (sin->sin_addr.s_addr == 0) {
1107                                                         /*
1108                                                          * we skip
1109                                                          * unspecifed
1110                                                          * addresses
1111                                                          */
1112                                                         continue;
1113                                                 }
1114                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1115                                                     &sin->sin_addr) != 0) {
1116                                                         continue;
1117                                                 }
1118                                                 if ((ipv4_local_scope == 0) &&
1119                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1120                                                         continue;
1121                                                 }
1122 #ifdef INET6
1123                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1124                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1125                                                                 return (actual);
1126                                                         }
1127                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1128                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1129                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1130                                                         actual += sizeof(struct sockaddr_in6);
1131                                                 } else {
1132 #endif
1133                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1134                                                                 return (actual);
1135                                                         }
1136                                                         memcpy(sas, sin, sizeof(struct sockaddr_in));
1137                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1138                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in));
1139                                                         actual += sizeof(struct sockaddr_in);
1140 #ifdef INET6
1141                                                 }
1142 #endif
1143                                         } else {
1144                                                 continue;
1145                                         }
1146                                         break;
1147 #endif
1148 #ifdef INET6
1149                                 case AF_INET6:
1150                                         if (ipv6_addr_legal) {
1151                                                 struct sockaddr_in6 *sin6;
1152
1153                                                 sin6 = &sctp_ifa->address.sin6;
1154                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1155                                                         /*
1156                                                          * we skip
1157                                                          * unspecifed
1158                                                          * addresses
1159                                                          */
1160                                                         continue;
1161                                                 }
1162                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1163                                                     &sin6->sin6_addr) != 0) {
1164                                                         continue;
1165                                                 }
1166                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1167                                                         if (local_scope == 0)
1168                                                                 continue;
1169                                                         if (sin6->sin6_scope_id == 0) {
1170                                                                 if (sa6_recoverscope(sin6) != 0)
1171                                                                         /*
1172                                                                          *
1173                                                                          * bad
1174                                                                          * link
1175                                                                          *
1176                                                                          * local
1177                                                                          *
1178                                                                          * address
1179                                                                          */
1180                                                                         continue;
1181                                                         }
1182                                                 }
1183                                                 if ((site_scope == 0) &&
1184                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1185                                                         continue;
1186                                                 }
1187                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1188                                                         return (actual);
1189                                                 }
1190                                                 memcpy(sas, sin6, sizeof(struct sockaddr_in6));
1191                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1192                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1193                                                 actual += sizeof(struct sockaddr_in6);
1194                                         } else {
1195                                                 continue;
1196                                         }
1197                                         break;
1198 #endif
1199                                 default:
1200                                         /* TSNH */
1201                                         break;
1202                                 }
1203                         }
1204                 }
1205         } else {
1206                 struct sctp_laddr *laddr;
1207                 size_t sa_len;
1208
1209                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1210                         if (stcb) {
1211                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1212                                         continue;
1213                                 }
1214                         }
1215                         sa_len = laddr->ifa->address.sa.sa_len;
1216                         if (actual + sa_len > limit) {
1217                                 return (actual);
1218                         }
1219                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1220                                 continue;
1221                         switch (laddr->ifa->address.sa.sa_family) {
1222 #ifdef INET
1223                         case AF_INET:
1224                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1225                                 break;
1226 #endif
1227 #ifdef INET6
1228                         case AF_INET6:
1229                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1230                                 break;
1231 #endif
1232                         default:
1233                                 /* TSNH */
1234                                 break;
1235                         }
1236                         sas = (struct sockaddr_storage *)((caddr_t)sas + sa_len);
1237                         actual += sa_len;
1238                 }
1239         }
1240         return (actual);
1241 }
1242
1243 static size_t
1244 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1245     struct sctp_tcb *stcb,
1246     size_t limit,
1247     struct sockaddr_storage *sas)
1248 {
1249         size_t size = 0;
1250
1251         SCTP_IPI_ADDR_RLOCK();
1252         /* fill up addresses for the endpoint's default vrf */
1253         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1254             inp->def_vrf_id);
1255         SCTP_IPI_ADDR_RUNLOCK();
1256         return (size);
1257 }
1258
1259 /*
1260  * NOTE: assumes addr lock is held
1261  */
1262 static int
1263 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1264 {
1265         int cnt = 0;
1266         struct sctp_vrf *vrf = NULL;
1267
1268         /*
1269          * In both sub-set bound an bound_all cases we return the MAXIMUM
1270          * number of addresses that you COULD get. In reality the sub-set
1271          * bound may have an exclusion list for a given TCB OR in the
1272          * bound-all case a TCB may NOT include the loopback or other
1273          * addresses as well.
1274          */
1275         vrf = sctp_find_vrf(vrf_id);
1276         if (vrf == NULL) {
1277                 return (0);
1278         }
1279         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1280                 struct sctp_ifn *sctp_ifn;
1281                 struct sctp_ifa *sctp_ifa;
1282
1283                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1284                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1285                                 /* Count them if they are the right type */
1286                                 switch (sctp_ifa->address.sa.sa_family) {
1287 #ifdef INET
1288                                 case AF_INET:
1289 #ifdef INET6
1290                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1291                                                 cnt += sizeof(struct sockaddr_in6);
1292                                         else
1293                                                 cnt += sizeof(struct sockaddr_in);
1294 #else
1295                                         cnt += sizeof(struct sockaddr_in);
1296 #endif
1297                                         break;
1298 #endif
1299 #ifdef INET6
1300                                 case AF_INET6:
1301                                         cnt += sizeof(struct sockaddr_in6);
1302                                         break;
1303 #endif
1304                                 default:
1305                                         break;
1306                                 }
1307                         }
1308                 }
1309         } else {
1310                 struct sctp_laddr *laddr;
1311
1312                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1313                         switch (laddr->ifa->address.sa.sa_family) {
1314 #ifdef INET
1315                         case AF_INET:
1316 #ifdef INET6
1317                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1318                                         cnt += sizeof(struct sockaddr_in6);
1319                                 else
1320                                         cnt += sizeof(struct sockaddr_in);
1321 #else
1322                                 cnt += sizeof(struct sockaddr_in);
1323 #endif
1324                                 break;
1325 #endif
1326 #ifdef INET6
1327                         case AF_INET6:
1328                                 cnt += sizeof(struct sockaddr_in6);
1329                                 break;
1330 #endif
1331                         default:
1332                                 break;
1333                         }
1334                 }
1335         }
1336         return (cnt);
1337 }
1338
1339 static int
1340 sctp_count_max_addresses(struct sctp_inpcb *inp)
1341 {
1342         int cnt = 0;
1343
1344         SCTP_IPI_ADDR_RLOCK();
1345         /* count addresses for the endpoint's default VRF */
1346         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1347         SCTP_IPI_ADDR_RUNLOCK();
1348         return (cnt);
1349 }
1350
1351 static int
1352 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1353     size_t optsize, void *p, int delay)
1354 {
1355         int error = 0;
1356         int creat_lock_on = 0;
1357         struct sctp_tcb *stcb = NULL;
1358         struct sockaddr *sa;
1359         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1360         uint32_t vrf_id;
1361         int bad_addresses = 0;
1362         sctp_assoc_t *a_id;
1363
1364         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1365
1366         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1367             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1368                 /* We are already connected AND the TCP model */
1369                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1370                 return (EADDRINUSE);
1371         }
1372
1373         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1374             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1375                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1376                 return (EINVAL);
1377         }
1378
1379         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1380                 SCTP_INP_RLOCK(inp);
1381                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1382                 SCTP_INP_RUNLOCK(inp);
1383         }
1384         if (stcb) {
1385                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1386                 return (EALREADY);
1387         }
1388         SCTP_INP_INCR_REF(inp);
1389         SCTP_ASOC_CREATE_LOCK(inp);
1390         creat_lock_on = 1;
1391         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1392             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1393                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1394                 error = EFAULT;
1395                 goto out_now;
1396         }
1397         totaddrp = (unsigned int *)optval;
1398         totaddr = *totaddrp;
1399         sa = (struct sockaddr *)(totaddrp + 1);
1400         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1401         if ((stcb != NULL) || bad_addresses) {
1402                 /* Already have or am bring up an association */
1403                 SCTP_ASOC_CREATE_UNLOCK(inp);
1404                 creat_lock_on = 0;
1405                 if (stcb)
1406                         SCTP_TCB_UNLOCK(stcb);
1407                 if (bad_addresses == 0) {
1408                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1409                         error = EALREADY;
1410                 }
1411                 goto out_now;
1412         }
1413 #ifdef INET6
1414         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1415             (num_v6 > 0)) {
1416                 error = EINVAL;
1417                 goto out_now;
1418         }
1419         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1420             (num_v4 > 0)) {
1421                 struct in6pcb *inp6;
1422
1423                 inp6 = (struct in6pcb *)inp;
1424                 if (SCTP_IPV6_V6ONLY(inp6)) {
1425                         /*
1426                          * if IPV6_V6ONLY flag, ignore connections destined
1427                          * to a v4 addr or v4-mapped addr
1428                          */
1429                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1430                         error = EINVAL;
1431                         goto out_now;
1432                 }
1433         }
1434 #endif                          /* INET6 */
1435         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1436             SCTP_PCB_FLAGS_UNBOUND) {
1437                 /* Bind a ephemeral port */
1438                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1439                 if (error) {
1440                         goto out_now;
1441                 }
1442         }
1443
1444         /* FIX ME: do we want to pass in a vrf on the connect call? */
1445         vrf_id = inp->def_vrf_id;
1446
1447
1448         /* We are GOOD to go */
1449         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1450             inp->sctp_ep.pre_open_stream_count,
1451             inp->sctp_ep.port,
1452             (struct thread *)p
1453             );
1454         if (stcb == NULL) {
1455                 /* Gak! no memory */
1456                 goto out_now;
1457         }
1458         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1459                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1460                 /* Set the connected flag so we can queue data */
1461                 soisconnecting(so);
1462         }
1463         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1464         /* move to second address */
1465         switch (sa->sa_family) {
1466 #ifdef INET
1467         case AF_INET:
1468                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1469                 break;
1470 #endif
1471 #ifdef INET6
1472         case AF_INET6:
1473                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1474                 break;
1475 #endif
1476         default:
1477                 break;
1478         }
1479
1480         error = 0;
1481         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1482         /* Fill in the return id */
1483         if (error) {
1484                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1485                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1486                 goto out_now;
1487         }
1488         a_id = (sctp_assoc_t *)optval;
1489         *a_id = sctp_get_associd(stcb);
1490
1491         /* initialize authentication parameters for the assoc */
1492         sctp_initialize_auth_params(inp, stcb);
1493
1494         if (delay) {
1495                 /* doing delayed connection */
1496                 stcb->asoc.delayed_connection = 1;
1497                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1498         } else {
1499                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1500                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1501         }
1502         SCTP_TCB_UNLOCK(stcb);
1503 out_now:
1504         if (creat_lock_on) {
1505                 SCTP_ASOC_CREATE_UNLOCK(inp);
1506         }
1507         SCTP_INP_DECR_REF(inp);
1508         return (error);
1509 }
1510
1511 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1512         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1513             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1514                 SCTP_INP_RLOCK(inp); \
1515                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1516                 if (stcb) { \
1517                         SCTP_TCB_LOCK(stcb); \
1518                 } \
1519                 SCTP_INP_RUNLOCK(inp); \
1520         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1521                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1522                 if (stcb == NULL) { \
1523                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1524                         error = ENOENT; \
1525                         break; \
1526                 } \
1527         } else { \
1528                 stcb = NULL; \
1529         } \
1530 }
1531
1532
1533 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1534         if (size < sizeof(type)) { \
1535                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1536                 error = EINVAL; \
1537                 break; \
1538         } else { \
1539                 destp = (type *)srcp; \
1540         } \
1541 }
1542
1543 static int
1544 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1545     void *p)
1546 {
1547         struct sctp_inpcb *inp = NULL;
1548         int error, val = 0;
1549         struct sctp_tcb *stcb = NULL;
1550
1551         if (optval == NULL) {
1552                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1553                 return (EINVAL);
1554         }
1555
1556         inp = (struct sctp_inpcb *)so->so_pcb;
1557         if (inp == NULL) {
1558                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1559                 return EINVAL;
1560         }
1561         error = 0;
1562
1563         switch (optname) {
1564         case SCTP_NODELAY:
1565         case SCTP_AUTOCLOSE:
1566         case SCTP_EXPLICIT_EOR:
1567         case SCTP_AUTO_ASCONF:
1568         case SCTP_DISABLE_FRAGMENTS:
1569         case SCTP_I_WANT_MAPPED_V4_ADDR:
1570         case SCTP_USE_EXT_RCVINFO:
1571                 SCTP_INP_RLOCK(inp);
1572                 switch (optname) {
1573                 case SCTP_DISABLE_FRAGMENTS:
1574                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1575                         break;
1576                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1577                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1578                         break;
1579                 case SCTP_AUTO_ASCONF:
1580                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1581                                 /* only valid for bound all sockets */
1582                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1583                         } else {
1584                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1585                                 error = EINVAL;
1586                                 goto flags_out;
1587                         }
1588                         break;
1589                 case SCTP_EXPLICIT_EOR:
1590                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1591                         break;
1592                 case SCTP_NODELAY:
1593                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1594                         break;
1595                 case SCTP_USE_EXT_RCVINFO:
1596                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1597                         break;
1598                 case SCTP_AUTOCLOSE:
1599                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1600                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1601                         else
1602                                 val = 0;
1603                         break;
1604
1605                 default:
1606                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1607                         error = ENOPROTOOPT;
1608                 }               /* end switch (sopt->sopt_name) */
1609                 if (*optsize < sizeof(val)) {
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1611                         error = EINVAL;
1612                 }
1613 flags_out:
1614                 SCTP_INP_RUNLOCK(inp);
1615                 if (error == 0) {
1616                         /* return the option value */
1617                         *(int *)optval = val;
1618                         *optsize = sizeof(val);
1619                 }
1620                 break;
1621         case SCTP_GET_PACKET_LOG:
1622                 {
1623 #ifdef  SCTP_PACKET_LOGGING
1624                         uint8_t *target;
1625                         int ret;
1626
1627                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1628                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1629                         *optsize = ret;
1630 #else
1631                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1632                         error = EOPNOTSUPP;
1633 #endif
1634                         break;
1635                 }
1636         case SCTP_REUSE_PORT:
1637                 {
1638                         uint32_t *value;
1639
1640                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1641                                 /* Can't do this for a 1-m socket */
1642                                 error = EINVAL;
1643                                 break;
1644                         }
1645                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1646                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1647                         *optsize = sizeof(uint32_t);
1648                         break;
1649                 }
1650         case SCTP_PARTIAL_DELIVERY_POINT:
1651                 {
1652                         uint32_t *value;
1653
1654                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1655                         *value = inp->partial_delivery_point;
1656                         *optsize = sizeof(uint32_t);
1657                         break;
1658                 }
1659         case SCTP_FRAGMENT_INTERLEAVE:
1660                 {
1661                         uint32_t *value;
1662
1663                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1664                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1665                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1666                                         *value = SCTP_FRAG_LEVEL_2;
1667                                 } else {
1668                                         *value = SCTP_FRAG_LEVEL_1;
1669                                 }
1670                         } else {
1671                                 *value = SCTP_FRAG_LEVEL_0;
1672                         }
1673                         *optsize = sizeof(uint32_t);
1674                         break;
1675                 }
1676         case SCTP_INTERLEAVING_SUPPORTED:
1677                 {
1678                         struct sctp_assoc_value *av;
1679
1680                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1681                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1682
1683                         if (stcb) {
1684                                 av->assoc_value = stcb->asoc.idata_supported;
1685                                 SCTP_TCB_UNLOCK(stcb);
1686                         } else {
1687                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1688                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1689                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1690                                         SCTP_INP_RLOCK(inp);
1691                                         if (inp->idata_supported) {
1692                                                 av->assoc_value = 1;
1693                                         } else {
1694                                                 av->assoc_value = 0;
1695                                         }
1696                                         SCTP_INP_RUNLOCK(inp);
1697                                 } else {
1698                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1699                                         error = EINVAL;
1700                                 }
1701                         }
1702                         if (error == 0) {
1703                                 *optsize = sizeof(struct sctp_assoc_value);
1704                         }
1705                         break;
1706                 }
1707         case SCTP_CMT_ON_OFF:
1708                 {
1709                         struct sctp_assoc_value *av;
1710
1711                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1712                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1713                         if (stcb) {
1714                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1715                                 SCTP_TCB_UNLOCK(stcb);
1716                         } else {
1717                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1718                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1719                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1720                                         SCTP_INP_RLOCK(inp);
1721                                         av->assoc_value = inp->sctp_cmt_on_off;
1722                                         SCTP_INP_RUNLOCK(inp);
1723                                 } else {
1724                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1725                                         error = EINVAL;
1726                                 }
1727                         }
1728                         if (error == 0) {
1729                                 *optsize = sizeof(struct sctp_assoc_value);
1730                         }
1731                         break;
1732                 }
1733         case SCTP_PLUGGABLE_CC:
1734                 {
1735                         struct sctp_assoc_value *av;
1736
1737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1739                         if (stcb) {
1740                                 av->assoc_value = stcb->asoc.congestion_control_module;
1741                                 SCTP_TCB_UNLOCK(stcb);
1742                         } else {
1743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1746                                         SCTP_INP_RLOCK(inp);
1747                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1748                                         SCTP_INP_RUNLOCK(inp);
1749                                 } else {
1750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1751                                         error = EINVAL;
1752                                 }
1753                         }
1754                         if (error == 0) {
1755                                 *optsize = sizeof(struct sctp_assoc_value);
1756                         }
1757                         break;
1758                 }
1759         case SCTP_CC_OPTION:
1760                 {
1761                         struct sctp_cc_option *cc_opt;
1762
1763                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1764                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1765                         if (stcb == NULL) {
1766                                 error = EINVAL;
1767                         } else {
1768                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1769                                         error = ENOTSUP;
1770                                 } else {
1771                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1772                                         *optsize = sizeof(struct sctp_cc_option);
1773                                 }
1774                                 SCTP_TCB_UNLOCK(stcb);
1775                         }
1776                         break;
1777                 }
1778         case SCTP_PLUGGABLE_SS:
1779                 {
1780                         struct sctp_assoc_value *av;
1781
1782                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1783                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1784                         if (stcb) {
1785                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1786                                 SCTP_TCB_UNLOCK(stcb);
1787                         } else {
1788                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1789                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1790                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1791                                         SCTP_INP_RLOCK(inp);
1792                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1793                                         SCTP_INP_RUNLOCK(inp);
1794                                 } else {
1795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1796                                         error = EINVAL;
1797                                 }
1798                         }
1799                         if (error == 0) {
1800                                 *optsize = sizeof(struct sctp_assoc_value);
1801                         }
1802                         break;
1803                 }
1804         case SCTP_SS_VALUE:
1805                 {
1806                         struct sctp_stream_value *av;
1807
1808                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1809                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1810                         if (stcb) {
1811                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1812                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1813                                     &av->stream_value) < 0)) {
1814                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1815                                         error = EINVAL;
1816                                 } else {
1817                                         *optsize = sizeof(struct sctp_stream_value);
1818                                 }
1819                                 SCTP_TCB_UNLOCK(stcb);
1820                         } else {
1821                                 /*
1822                                  * Can't get stream value without
1823                                  * association
1824                                  */
1825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1826                                 error = EINVAL;
1827                         }
1828                         break;
1829                 }
1830         case SCTP_GET_ADDR_LEN:
1831                 {
1832                         struct sctp_assoc_value *av;
1833
1834                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1835                         error = EINVAL;
1836 #ifdef INET
1837                         if (av->assoc_value == AF_INET) {
1838                                 av->assoc_value = sizeof(struct sockaddr_in);
1839                                 error = 0;
1840                         }
1841 #endif
1842 #ifdef INET6
1843                         if (av->assoc_value == AF_INET6) {
1844                                 av->assoc_value = sizeof(struct sockaddr_in6);
1845                                 error = 0;
1846                         }
1847 #endif
1848                         if (error) {
1849                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1850                         } else {
1851                                 *optsize = sizeof(struct sctp_assoc_value);
1852                         }
1853                         break;
1854                 }
1855         case SCTP_GET_ASSOC_NUMBER:
1856                 {
1857                         uint32_t *value, cnt;
1858
1859                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1860                         SCTP_INP_RLOCK(inp);
1861                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1862                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1863                                 /* Can't do this for a 1-1 socket */
1864                                 error = EINVAL;
1865                                 SCTP_INP_RUNLOCK(inp);
1866                                 break;
1867                         }
1868                         cnt = 0;
1869                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1870                                 cnt++;
1871                         }
1872                         SCTP_INP_RUNLOCK(inp);
1873                         *value = cnt;
1874                         *optsize = sizeof(uint32_t);
1875                         break;
1876                 }
1877         case SCTP_GET_ASSOC_ID_LIST:
1878                 {
1879                         struct sctp_assoc_ids *ids;
1880                         uint32_t at;
1881                         size_t limit;
1882
1883                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1884                         SCTP_INP_RLOCK(inp);
1885                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1886                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1887                                 /* Can't do this for a 1-1 socket */
1888                                 error = EINVAL;
1889                                 SCTP_INP_RUNLOCK(inp);
1890                                 break;
1891                         }
1892                         at = 0;
1893                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1894                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1895                                 if (at < limit) {
1896                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1897                                         if (at == 0) {
1898                                                 error = EINVAL;
1899                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1900                                                 break;
1901                                         }
1902                                 } else {
1903                                         error = EINVAL;
1904                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1905                                         break;
1906                                 }
1907                         }
1908                         SCTP_INP_RUNLOCK(inp);
1909                         if (error == 0) {
1910                                 ids->gaids_number_of_ids = at;
1911                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1912                         }
1913                         break;
1914                 }
1915         case SCTP_CONTEXT:
1916                 {
1917                         struct sctp_assoc_value *av;
1918
1919                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1920                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1921
1922                         if (stcb) {
1923                                 av->assoc_value = stcb->asoc.context;
1924                                 SCTP_TCB_UNLOCK(stcb);
1925                         } else {
1926                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1927                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1928                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1929                                         SCTP_INP_RLOCK(inp);
1930                                         av->assoc_value = inp->sctp_context;
1931                                         SCTP_INP_RUNLOCK(inp);
1932                                 } else {
1933                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1934                                         error = EINVAL;
1935                                 }
1936                         }
1937                         if (error == 0) {
1938                                 *optsize = sizeof(struct sctp_assoc_value);
1939                         }
1940                         break;
1941                 }
1942         case SCTP_VRF_ID:
1943                 {
1944                         uint32_t *default_vrfid;
1945
1946                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1947                         *default_vrfid = inp->def_vrf_id;
1948                         *optsize = sizeof(uint32_t);
1949                         break;
1950                 }
1951         case SCTP_GET_ASOC_VRF:
1952                 {
1953                         struct sctp_assoc_value *id;
1954
1955                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1956                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1957                         if (stcb == NULL) {
1958                                 error = EINVAL;
1959                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1960                         } else {
1961                                 id->assoc_value = stcb->asoc.vrf_id;
1962                                 SCTP_TCB_UNLOCK(stcb);
1963                                 *optsize = sizeof(struct sctp_assoc_value);
1964                         }
1965                         break;
1966                 }
1967         case SCTP_GET_VRF_IDS:
1968                 {
1969                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1970                         error = EOPNOTSUPP;
1971                         break;
1972                 }
1973         case SCTP_GET_NONCE_VALUES:
1974                 {
1975                         struct sctp_get_nonce_values *gnv;
1976
1977                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1978                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1979
1980                         if (stcb) {
1981                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1982                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1983                                 SCTP_TCB_UNLOCK(stcb);
1984                                 *optsize = sizeof(struct sctp_get_nonce_values);
1985                         } else {
1986                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1987                                 error = ENOTCONN;
1988                         }
1989                         break;
1990                 }
1991         case SCTP_DELAYED_SACK:
1992                 {
1993                         struct sctp_sack_info *sack;
1994
1995                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1996                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1997                         if (stcb) {
1998                                 sack->sack_delay = stcb->asoc.delayed_ack;
1999                                 sack->sack_freq = stcb->asoc.sack_freq;
2000                                 SCTP_TCB_UNLOCK(stcb);
2001                         } else {
2002                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2003                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2004                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2005                                         SCTP_INP_RLOCK(inp);
2006                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2007                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2008                                         SCTP_INP_RUNLOCK(inp);
2009                                 } else {
2010                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2011                                         error = EINVAL;
2012                                 }
2013                         }
2014                         if (error == 0) {
2015                                 *optsize = sizeof(struct sctp_sack_info);
2016                         }
2017                         break;
2018                 }
2019         case SCTP_GET_SNDBUF_USE:
2020                 {
2021                         struct sctp_sockstat *ss;
2022
2023                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2024                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2025
2026                         if (stcb) {
2027                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2028                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2029                                     stcb->asoc.size_on_all_streams);
2030                                 SCTP_TCB_UNLOCK(stcb);
2031                                 *optsize = sizeof(struct sctp_sockstat);
2032                         } else {
2033                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2034                                 error = ENOTCONN;
2035                         }
2036                         break;
2037                 }
2038         case SCTP_MAX_BURST:
2039                 {
2040                         struct sctp_assoc_value *av;
2041
2042                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2043                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2044
2045                         if (stcb) {
2046                                 av->assoc_value = stcb->asoc.max_burst;
2047                                 SCTP_TCB_UNLOCK(stcb);
2048                         } else {
2049                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2050                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2051                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2052                                         SCTP_INP_RLOCK(inp);
2053                                         av->assoc_value = inp->sctp_ep.max_burst;
2054                                         SCTP_INP_RUNLOCK(inp);
2055                                 } else {
2056                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2057                                         error = EINVAL;
2058                                 }
2059                         }
2060                         if (error == 0) {
2061                                 *optsize = sizeof(struct sctp_assoc_value);
2062                         }
2063                         break;
2064                 }
2065         case SCTP_MAXSEG:
2066                 {
2067                         struct sctp_assoc_value *av;
2068                         int ovh;
2069
2070                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2071                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2072
2073                         if (stcb) {
2074                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2075                                 SCTP_TCB_UNLOCK(stcb);
2076                         } else {
2077                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2078                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2079                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2080                                         SCTP_INP_RLOCK(inp);
2081                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2082                                                 ovh = SCTP_MED_OVERHEAD;
2083                                         } else {
2084                                                 ovh = SCTP_MED_V4_OVERHEAD;
2085                                         }
2086                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2087                                                 av->assoc_value = 0;
2088                                         else
2089                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2090                                         SCTP_INP_RUNLOCK(inp);
2091                                 } else {
2092                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2093                                         error = EINVAL;
2094                                 }
2095                         }
2096                         if (error == 0) {
2097                                 *optsize = sizeof(struct sctp_assoc_value);
2098                         }
2099                         break;
2100                 }
2101         case SCTP_GET_STAT_LOG:
2102                 error = sctp_fill_stat_log(optval, optsize);
2103                 break;
2104         case SCTP_EVENTS:
2105                 {
2106                         struct sctp_event_subscribe *events;
2107
2108                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2109                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2110                         SCTP_INP_RLOCK(inp);
2111                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2112                                 events->sctp_data_io_event = 1;
2113
2114                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2115                                 events->sctp_association_event = 1;
2116
2117                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2118                                 events->sctp_address_event = 1;
2119
2120                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2121                                 events->sctp_send_failure_event = 1;
2122
2123                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2124                                 events->sctp_peer_error_event = 1;
2125
2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2127                                 events->sctp_shutdown_event = 1;
2128
2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2130                                 events->sctp_partial_delivery_event = 1;
2131
2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2133                                 events->sctp_adaptation_layer_event = 1;
2134
2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2136                                 events->sctp_authentication_event = 1;
2137
2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2139                                 events->sctp_sender_dry_event = 1;
2140
2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2142                                 events->sctp_stream_reset_event = 1;
2143                         SCTP_INP_RUNLOCK(inp);
2144                         *optsize = sizeof(struct sctp_event_subscribe);
2145                         break;
2146                 }
2147         case SCTP_ADAPTATION_LAYER:
2148                 {
2149                         uint32_t *value;
2150
2151                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2152
2153                         SCTP_INP_RLOCK(inp);
2154                         *value = inp->sctp_ep.adaptation_layer_indicator;
2155                         SCTP_INP_RUNLOCK(inp);
2156                         *optsize = sizeof(uint32_t);
2157                         break;
2158                 }
2159         case SCTP_SET_INITIAL_DBG_SEQ:
2160                 {
2161                         uint32_t *value;
2162
2163                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2164                         SCTP_INP_RLOCK(inp);
2165                         *value = inp->sctp_ep.initial_sequence_debug;
2166                         SCTP_INP_RUNLOCK(inp);
2167                         *optsize = sizeof(uint32_t);
2168                         break;
2169                 }
2170         case SCTP_GET_LOCAL_ADDR_SIZE:
2171                 {
2172                         uint32_t *value;
2173
2174                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2175                         SCTP_INP_RLOCK(inp);
2176                         *value = sctp_count_max_addresses(inp);
2177                         SCTP_INP_RUNLOCK(inp);
2178                         *optsize = sizeof(uint32_t);
2179                         break;
2180                 }
2181         case SCTP_GET_REMOTE_ADDR_SIZE:
2182                 {
2183                         uint32_t *value;
2184                         size_t size;
2185                         struct sctp_nets *net;
2186
2187                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2188                         /* FIXME MT: change to sctp_assoc_value? */
2189                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2190
2191                         if (stcb) {
2192                                 size = 0;
2193                                 /* Count the sizes */
2194                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2195                                         switch (net->ro._l_addr.sa.sa_family) {
2196 #ifdef INET
2197                                         case AF_INET:
2198 #ifdef INET6
2199                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2200                                                         size += sizeof(struct sockaddr_in6);
2201                                                 } else {
2202                                                         size += sizeof(struct sockaddr_in);
2203                                                 }
2204 #else
2205                                                 size += sizeof(struct sockaddr_in);
2206 #endif
2207                                                 break;
2208 #endif
2209 #ifdef INET6
2210                                         case AF_INET6:
2211                                                 size += sizeof(struct sockaddr_in6);
2212                                                 break;
2213 #endif
2214                                         default:
2215                                                 break;
2216                                         }
2217                                 }
2218                                 SCTP_TCB_UNLOCK(stcb);
2219                                 *value = (uint32_t)size;
2220                                 *optsize = sizeof(uint32_t);
2221                         } else {
2222                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2223                                 error = ENOTCONN;
2224                         }
2225                         break;
2226                 }
2227         case SCTP_GET_PEER_ADDRESSES:
2228                 /*
2229                  * Get the address information, an array is passed in to
2230                  * fill up we pack it.
2231                  */
2232                 {
2233                         size_t cpsz, left;
2234                         struct sockaddr_storage *sas;
2235                         struct sctp_nets *net;
2236                         struct sctp_getaddresses *saddr;
2237
2238                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2239                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2240
2241                         if (stcb) {
2242                                 left = (*optsize) - sizeof(sctp_assoc_t);
2243                                 *optsize = sizeof(sctp_assoc_t);
2244                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2245
2246                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2247                                         switch (net->ro._l_addr.sa.sa_family) {
2248 #ifdef INET
2249                                         case AF_INET:
2250 #ifdef INET6
2251                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2252                                                         cpsz = sizeof(struct sockaddr_in6);
2253                                                 } else {
2254                                                         cpsz = sizeof(struct sockaddr_in);
2255                                                 }
2256 #else
2257                                                 cpsz = sizeof(struct sockaddr_in);
2258 #endif
2259                                                 break;
2260 #endif
2261 #ifdef INET6
2262                                         case AF_INET6:
2263                                                 cpsz = sizeof(struct sockaddr_in6);
2264                                                 break;
2265 #endif
2266                                         default:
2267                                                 cpsz = 0;
2268                                                 break;
2269                                         }
2270                                         if (cpsz == 0) {
2271                                                 break;
2272                                         }
2273                                         if (left < cpsz) {
2274                                                 /* not enough room. */
2275                                                 break;
2276                                         }
2277 #if defined(INET) && defined(INET6)
2278                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2279                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2280                                                 /* Must map the address */
2281                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2282                                                     (struct sockaddr_in6 *)sas);
2283                                         } else {
2284                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2285                                         }
2286 #else
2287                                         memcpy(sas, &net->ro._l_addr, cpsz);
2288 #endif
2289                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2290
2291                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2292                                         left -= cpsz;
2293                                         *optsize += cpsz;
2294                                 }
2295                                 SCTP_TCB_UNLOCK(stcb);
2296                         } else {
2297                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2298                                 error = ENOENT;
2299                         }
2300                         break;
2301                 }
2302         case SCTP_GET_LOCAL_ADDRESSES:
2303                 {
2304                         size_t limit, actual;
2305                         struct sockaddr_storage *sas;
2306                         struct sctp_getaddresses *saddr;
2307
2308                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2309                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2310
2311                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2312                         limit = *optsize - sizeof(sctp_assoc_t);
2313                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2314                         if (stcb) {
2315                                 SCTP_TCB_UNLOCK(stcb);
2316                         }
2317                         *optsize = sizeof(sctp_assoc_t) + actual;
2318                         break;
2319                 }
2320         case SCTP_PEER_ADDR_PARAMS:
2321                 {
2322                         struct sctp_paddrparams *paddrp;
2323                         struct sctp_nets *net;
2324                         struct sockaddr *addr;
2325 #if defined(INET) && defined(INET6)
2326                         struct sockaddr_in sin_store;
2327 #endif
2328
2329                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2330                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2331
2332 #if defined(INET) && defined(INET6)
2333                         if (paddrp->spp_address.ss_family == AF_INET6) {
2334                                 struct sockaddr_in6 *sin6;
2335
2336                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2337                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2338                                         in6_sin6_2_sin(&sin_store, sin6);
2339                                         addr = (struct sockaddr *)&sin_store;
2340                                 } else {
2341                                         addr = (struct sockaddr *)&paddrp->spp_address;
2342                                 }
2343                         } else {
2344                                 addr = (struct sockaddr *)&paddrp->spp_address;
2345                         }
2346 #else
2347                         addr = (struct sockaddr *)&paddrp->spp_address;
2348 #endif
2349                         if (stcb != NULL) {
2350                                 net = sctp_findnet(stcb, addr);
2351                         } else {
2352                                 /*
2353                                  * We increment here since
2354                                  * sctp_findassociation_ep_addr() wil do a
2355                                  * decrement if it finds the stcb as long as
2356                                  * the locked tcb (last argument) is NOT a
2357                                  * TCB.. aka NULL.
2358                                  */
2359                                 net = NULL;
2360                                 SCTP_INP_INCR_REF(inp);
2361                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2362                                 if (stcb == NULL) {
2363                                         SCTP_INP_DECR_REF(inp);
2364                                 }
2365                         }
2366                         if ((stcb != NULL) && (net == NULL)) {
2367 #ifdef INET
2368                                 if (addr->sa_family == AF_INET) {
2369                                         struct sockaddr_in *sin;
2370
2371                                         sin = (struct sockaddr_in *)addr;
2372                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2373                                                 error = EINVAL;
2374                                                 SCTP_TCB_UNLOCK(stcb);
2375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2376                                                 break;
2377                                         }
2378                                 } else
2379 #endif
2380 #ifdef INET6
2381                                 if (addr->sa_family == AF_INET6) {
2382                                         struct sockaddr_in6 *sin6;
2383
2384                                         sin6 = (struct sockaddr_in6 *)addr;
2385                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2386                                                 error = EINVAL;
2387                                                 SCTP_TCB_UNLOCK(stcb);
2388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2389                                                 break;
2390                                         }
2391                                 } else
2392 #endif
2393                                 {
2394                                         error = EAFNOSUPPORT;
2395                                         SCTP_TCB_UNLOCK(stcb);
2396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2397                                         break;
2398                                 }
2399                         }
2400
2401                         if (stcb != NULL) {
2402                                 /* Applies to the specific association */
2403                                 paddrp->spp_flags = 0;
2404                                 if (net != NULL) {
2405                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2406                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2407                                         paddrp->spp_pathmtu = net->mtu;
2408                                         switch (net->ro._l_addr.sa.sa_family) {
2409 #ifdef INET
2410                                         case AF_INET:
2411                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2412                                                 break;
2413 #endif
2414 #ifdef INET6
2415                                         case AF_INET6:
2416                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2417                                                 break;
2418 #endif
2419                                         default:
2420                                                 break;
2421                                         }
2422                                         /* get flags for HB */
2423                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2424                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2425                                         } else {
2426                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2427                                         }
2428                                         /* get flags for PMTU */
2429                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2430                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2431                                         } else {
2432                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2433                                         }
2434                                         if (net->dscp & 0x01) {
2435                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2436                                                 paddrp->spp_flags |= SPP_DSCP;
2437                                         }
2438 #ifdef INET6
2439                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2440                                             (net->flowlabel & 0x80000000)) {
2441                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2442                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2443                                         }
2444 #endif
2445                                 } else {
2446                                         /*
2447                                          * No destination so return default
2448                                          * value
2449                                          */
2450                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2451                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2452                                         if (stcb->asoc.default_dscp & 0x01) {
2453                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2454                                                 paddrp->spp_flags |= SPP_DSCP;
2455                                         }
2456 #ifdef INET6
2457                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2458                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2459                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2460                                         }
2461 #endif
2462                                         /* default settings should be these */
2463                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2464                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2465                                         } else {
2466                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2467                                         }
2468                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2469                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2470                                         } else {
2471                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2472                                         }
2473                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2474                                 }
2475                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2476                                 SCTP_TCB_UNLOCK(stcb);
2477                         } else {
2478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2480                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2481                                         /* Use endpoint defaults */
2482                                         SCTP_INP_RLOCK(inp);
2483                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2484                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2485                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2486                                         /* get inp's default */
2487                                         if (inp->sctp_ep.default_dscp & 0x01) {
2488                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2489                                                 paddrp->spp_flags |= SPP_DSCP;
2490                                         }
2491 #ifdef INET6
2492                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2493                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2494                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2495                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2496                                         }
2497 #endif
2498                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2499
2500                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2504                                         }
2505                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2509                                         }
2510                                         SCTP_INP_RUNLOCK(inp);
2511                                 } else {
2512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2513                                         error = EINVAL;
2514                                 }
2515                         }
2516                         if (error == 0) {
2517                                 *optsize = sizeof(struct sctp_paddrparams);
2518                         }
2519                         break;
2520                 }
2521         case SCTP_GET_PEER_ADDR_INFO:
2522                 {
2523                         struct sctp_paddrinfo *paddri;
2524                         struct sctp_nets *net;
2525                         struct sockaddr *addr;
2526 #if defined(INET) && defined(INET6)
2527                         struct sockaddr_in sin_store;
2528 #endif
2529
2530                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2531                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2532
2533 #if defined(INET) && defined(INET6)
2534                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2535                                 struct sockaddr_in6 *sin6;
2536
2537                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2538                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2539                                         in6_sin6_2_sin(&sin_store, sin6);
2540                                         addr = (struct sockaddr *)&sin_store;
2541                                 } else {
2542                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2543                                 }
2544                         } else {
2545                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2546                         }
2547 #else
2548                         addr = (struct sockaddr *)&paddri->spinfo_address;
2549 #endif
2550                         if (stcb != NULL) {
2551                                 net = sctp_findnet(stcb, addr);
2552                         } else {
2553                                 /*
2554                                  * We increment here since
2555                                  * sctp_findassociation_ep_addr() wil do a
2556                                  * decrement if it finds the stcb as long as
2557                                  * the locked tcb (last argument) is NOT a
2558                                  * TCB.. aka NULL.
2559                                  */
2560                                 net = NULL;
2561                                 SCTP_INP_INCR_REF(inp);
2562                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2563                                 if (stcb == NULL) {
2564                                         SCTP_INP_DECR_REF(inp);
2565                                 }
2566                         }
2567
2568                         if ((stcb != NULL) && (net != NULL)) {
2569                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2570                                         /* It's unconfirmed */
2571                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2572                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2573                                         /* It's active */
2574                                         paddri->spinfo_state = SCTP_ACTIVE;
2575                                 } else {
2576                                         /* It's inactive */
2577                                         paddri->spinfo_state = SCTP_INACTIVE;
2578                                 }
2579                                 paddri->spinfo_cwnd = net->cwnd;
2580                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2581                                 paddri->spinfo_rto = net->RTO;
2582                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2583                                 paddri->spinfo_mtu = net->mtu;
2584                                 switch (addr->sa_family) {
2585 #if defined(INET)
2586                                 case AF_INET:
2587                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2588                                         break;
2589 #endif
2590 #if defined(INET6)
2591                                 case AF_INET6:
2592                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2593                                         break;
2594 #endif
2595                                 default:
2596                                         break;
2597                                 }
2598                                 SCTP_TCB_UNLOCK(stcb);
2599                                 *optsize = sizeof(struct sctp_paddrinfo);
2600                         } else {
2601                                 if (stcb != NULL) {
2602                                         SCTP_TCB_UNLOCK(stcb);
2603                                 }
2604                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2605                                 error = ENOENT;
2606                         }
2607                         break;
2608                 }
2609         case SCTP_PCB_STATUS:
2610                 {
2611                         struct sctp_pcbinfo *spcb;
2612
2613                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2614                         sctp_fill_pcbinfo(spcb);
2615                         *optsize = sizeof(struct sctp_pcbinfo);
2616                         break;
2617                 }
2618         case SCTP_STATUS:
2619                 {
2620                         struct sctp_nets *net;
2621                         struct sctp_status *sstat;
2622
2623                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2624                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2625
2626                         if (stcb == NULL) {
2627                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2628                                 error = EINVAL;
2629                                 break;
2630                         }
2631                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2632                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2633                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2634                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2635                         /*
2636                          * We can't include chunks that have been passed to
2637                          * the socket layer. Only things in queue.
2638                          */
2639                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2640                             stcb->asoc.cnt_on_all_streams);
2641
2642
2643                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2644                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2645                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2646                         net = stcb->asoc.primary_destination;
2647                         if (net != NULL) {
2648                                 memcpy(&sstat->sstat_primary.spinfo_address,
2649                                     &stcb->asoc.primary_destination->ro._l_addr,
2650                                     ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2651                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2652                                 /*
2653                                  * Again the user can get info from
2654                                  * sctp_constants.h for what the state of
2655                                  * the network is.
2656                                  */
2657                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2658                                         /* It's unconfirmed */
2659                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2660                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2661                                         /* It's active */
2662                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2663                                 } else {
2664                                         /* It's inactive */
2665                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2666                                 }
2667                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2668                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2669                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2670                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2671                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2672 #if defined(INET)
2673                                 case AF_INET:
2674                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2675                                         break;
2676 #endif
2677 #if defined(INET6)
2678                                 case AF_INET6:
2679                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2680                                         break;
2681 #endif
2682                                 default:
2683                                         break;
2684                                 }
2685                         } else {
2686                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2687                         }
2688                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2689                         SCTP_TCB_UNLOCK(stcb);
2690                         *optsize = sizeof(struct sctp_status);
2691                         break;
2692                 }
2693         case SCTP_RTOINFO:
2694                 {
2695                         struct sctp_rtoinfo *srto;
2696
2697                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2698                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2699
2700                         if (stcb) {
2701                                 srto->srto_initial = stcb->asoc.initial_rto;
2702                                 srto->srto_max = stcb->asoc.maxrto;
2703                                 srto->srto_min = stcb->asoc.minrto;
2704                                 SCTP_TCB_UNLOCK(stcb);
2705                         } else {
2706                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2707                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2708                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2709                                         SCTP_INP_RLOCK(inp);
2710                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2711                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2712                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2713                                         SCTP_INP_RUNLOCK(inp);
2714                                 } else {
2715                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2716                                         error = EINVAL;
2717                                 }
2718                         }
2719                         if (error == 0) {
2720                                 *optsize = sizeof(struct sctp_rtoinfo);
2721                         }
2722                         break;
2723                 }
2724         case SCTP_TIMEOUTS:
2725                 {
2726                         struct sctp_timeouts *stimo;
2727
2728                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2729                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2730
2731                         if (stcb) {
2732                                 stimo->stimo_init = stcb->asoc.timoinit;
2733                                 stimo->stimo_data = stcb->asoc.timodata;
2734                                 stimo->stimo_sack = stcb->asoc.timosack;
2735                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2736                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2737                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2738                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2739                                 SCTP_TCB_UNLOCK(stcb);
2740                                 *optsize = sizeof(struct sctp_timeouts);
2741                         } else {
2742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2743                                 error = EINVAL;
2744                         }
2745                         break;
2746                 }
2747         case SCTP_ASSOCINFO:
2748                 {
2749                         struct sctp_assocparams *sasoc;
2750
2751                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2752                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2753
2754                         if (stcb) {
2755                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2756                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2757                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2758                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2759                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2760                                 SCTP_TCB_UNLOCK(stcb);
2761                         } else {
2762                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2763                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2764                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2765                                         SCTP_INP_RLOCK(inp);
2766                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2767                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2768                                         sasoc->sasoc_number_peer_destinations = 0;
2769                                         sasoc->sasoc_peer_rwnd = 0;
2770                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2771                                         SCTP_INP_RUNLOCK(inp);
2772                                 } else {
2773                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2774                                         error = EINVAL;
2775                                 }
2776                         }
2777                         if (error == 0) {
2778                                 *optsize = sizeof(struct sctp_assocparams);
2779                         }
2780                         break;
2781                 }
2782         case SCTP_DEFAULT_SEND_PARAM:
2783                 {
2784                         struct sctp_sndrcvinfo *s_info;
2785
2786                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2787                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2788
2789                         if (stcb) {
2790                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2791                                 SCTP_TCB_UNLOCK(stcb);
2792                         } else {
2793                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2794                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2795                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2796                                         SCTP_INP_RLOCK(inp);
2797                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2798                                         SCTP_INP_RUNLOCK(inp);
2799                                 } else {
2800                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2801                                         error = EINVAL;
2802                                 }
2803                         }
2804                         if (error == 0) {
2805                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2806                         }
2807                         break;
2808                 }
2809         case SCTP_INITMSG:
2810                 {
2811                         struct sctp_initmsg *sinit;
2812
2813                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2814                         SCTP_INP_RLOCK(inp);
2815                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2816                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2817                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2818                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2819                         SCTP_INP_RUNLOCK(inp);
2820                         *optsize = sizeof(struct sctp_initmsg);
2821                         break;
2822                 }
2823         case SCTP_PRIMARY_ADDR:
2824                 /* we allow a "get" operation on this */
2825                 {
2826                         struct sctp_setprim *ssp;
2827
2828                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2829                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2830
2831                         if (stcb) {
2832                                 union sctp_sockstore *addr;
2833
2834                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2835                                 switch (addr->sa.sa_family) {
2836 #ifdef INET
2837                                 case AF_INET:
2838 #ifdef INET6
2839                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2840                                                 in6_sin_2_v4mapsin6(&addr->sin,
2841                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2842                                         } else {
2843                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2844                                         }
2845 #else
2846                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2847 #endif
2848                                         break;
2849 #endif
2850 #ifdef INET6
2851                                 case AF_INET6:
2852                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2853                                         break;
2854 #endif
2855                                 default:
2856                                         break;
2857                                 }
2858                                 SCTP_TCB_UNLOCK(stcb);
2859                                 *optsize = sizeof(struct sctp_setprim);
2860                         } else {
2861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2862                                 error = EINVAL;
2863                         }
2864                         break;
2865                 }
2866         case SCTP_HMAC_IDENT:
2867                 {
2868                         struct sctp_hmacalgo *shmac;
2869                         sctp_hmaclist_t *hmaclist;
2870                         uint32_t size;
2871                         int i;
2872
2873                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2874
2875                         SCTP_INP_RLOCK(inp);
2876                         hmaclist = inp->sctp_ep.local_hmacs;
2877                         if (hmaclist == NULL) {
2878                                 /* no HMACs to return */
2879                                 *optsize = sizeof(*shmac);
2880                                 SCTP_INP_RUNLOCK(inp);
2881                                 break;
2882                         }
2883                         /* is there room for all of the hmac ids? */
2884                         size = sizeof(*shmac) + (hmaclist->num_algo *
2885                             sizeof(shmac->shmac_idents[0]));
2886                         if ((size_t)(*optsize) < size) {
2887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2888                                 error = EINVAL;
2889                                 SCTP_INP_RUNLOCK(inp);
2890                                 break;
2891                         }
2892                         /* copy in the list */
2893                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2894                         for (i = 0; i < hmaclist->num_algo; i++) {
2895                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2896                         }
2897                         SCTP_INP_RUNLOCK(inp);
2898                         *optsize = size;
2899                         break;
2900                 }
2901         case SCTP_AUTH_ACTIVE_KEY:
2902                 {
2903                         struct sctp_authkeyid *scact;
2904
2905                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2906                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2907
2908                         if (stcb) {
2909                                 /* get the active key on the assoc */
2910                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2911                                 SCTP_TCB_UNLOCK(stcb);
2912                         } else {
2913                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2914                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2915                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2916                                         /* get the endpoint active key */
2917                                         SCTP_INP_RLOCK(inp);
2918                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2919                                         SCTP_INP_RUNLOCK(inp);
2920                                 } else {
2921                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2922                                         error = EINVAL;
2923                                 }
2924                         }
2925                         if (error == 0) {
2926                                 *optsize = sizeof(struct sctp_authkeyid);
2927                         }
2928                         break;
2929                 }
2930         case SCTP_LOCAL_AUTH_CHUNKS:
2931                 {
2932                         struct sctp_authchunks *sac;
2933                         sctp_auth_chklist_t *chklist = NULL;
2934                         size_t size = 0;
2935
2936                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2937                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2938
2939                         if (stcb) {
2940                                 /* get off the assoc */
2941                                 chklist = stcb->asoc.local_auth_chunks;
2942                                 /* is there enough space? */
2943                                 size = sctp_auth_get_chklist_size(chklist);
2944                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2945                                         error = EINVAL;
2946                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2947                                 } else {
2948                                         /* copy in the chunks */
2949                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2950                                         sac->gauth_number_of_chunks = (uint32_t)size;
2951                                         *optsize = sizeof(struct sctp_authchunks) + size;
2952                                 }
2953                                 SCTP_TCB_UNLOCK(stcb);
2954                         } else {
2955                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2956                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2957                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2958                                         /* get off the endpoint */
2959                                         SCTP_INP_RLOCK(inp);
2960                                         chklist = inp->sctp_ep.local_auth_chunks;
2961                                         /* is there enough space? */
2962                                         size = sctp_auth_get_chklist_size(chklist);
2963                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2964                                                 error = EINVAL;
2965                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2966                                         } else {
2967                                                 /* copy in the chunks */
2968                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2969                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2970                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2971                                         }
2972                                         SCTP_INP_RUNLOCK(inp);
2973                                 } else {
2974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2975                                         error = EINVAL;
2976                                 }
2977                         }
2978                         break;
2979                 }
2980         case SCTP_PEER_AUTH_CHUNKS:
2981                 {
2982                         struct sctp_authchunks *sac;
2983                         sctp_auth_chklist_t *chklist = NULL;
2984                         size_t size = 0;
2985
2986                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2987                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2988
2989                         if (stcb) {
2990                                 /* get off the assoc */
2991                                 chklist = stcb->asoc.peer_auth_chunks;
2992                                 /* is there enough space? */
2993                                 size = sctp_auth_get_chklist_size(chklist);
2994                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2995                                         error = EINVAL;
2996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2997                                 } else {
2998                                         /* copy in the chunks */
2999                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3000                                         sac->gauth_number_of_chunks = (uint32_t)size;
3001                                         *optsize = sizeof(struct sctp_authchunks) + size;
3002                                 }
3003                                 SCTP_TCB_UNLOCK(stcb);
3004                         } else {
3005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3006                                 error = ENOENT;
3007                         }
3008                         break;
3009                 }
3010         case SCTP_EVENT:
3011                 {
3012                         struct sctp_event *event;
3013                         uint32_t event_type;
3014
3015                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3016                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3017
3018                         switch (event->se_type) {
3019                         case SCTP_ASSOC_CHANGE:
3020                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3021                                 break;
3022                         case SCTP_PEER_ADDR_CHANGE:
3023                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3024                                 break;
3025                         case SCTP_REMOTE_ERROR:
3026                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3027                                 break;
3028                         case SCTP_SEND_FAILED:
3029                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3030                                 break;
3031                         case SCTP_SHUTDOWN_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3033                                 break;
3034                         case SCTP_ADAPTATION_INDICATION:
3035                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3036                                 break;
3037                         case SCTP_PARTIAL_DELIVERY_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3039                                 break;
3040                         case SCTP_AUTHENTICATION_EVENT:
3041                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3042                                 break;
3043                         case SCTP_STREAM_RESET_EVENT:
3044                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3045                                 break;
3046                         case SCTP_SENDER_DRY_EVENT:
3047                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3048                                 break;
3049                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3050                                 event_type = 0;
3051                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3052                                 error = ENOTSUP;
3053                                 break;
3054                         case SCTP_ASSOC_RESET_EVENT:
3055                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3056                                 break;
3057                         case SCTP_STREAM_CHANGE_EVENT:
3058                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3059                                 break;
3060                         case SCTP_SEND_FAILED_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3062                                 break;
3063                         default:
3064                                 event_type = 0;
3065                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3066                                 error = EINVAL;
3067                                 break;
3068                         }
3069                         if (event_type > 0) {
3070                                 if (stcb) {
3071                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3072                                 } else {
3073                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3074                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3075                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3076                                                 SCTP_INP_RLOCK(inp);
3077                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3078                                                 SCTP_INP_RUNLOCK(inp);
3079                                         } else {
3080                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3081                                                 error = EINVAL;
3082                                         }
3083                                 }
3084                         }
3085                         if (stcb != NULL) {
3086                                 SCTP_TCB_UNLOCK(stcb);
3087                         }
3088                         if (error == 0) {
3089                                 *optsize = sizeof(struct sctp_event);
3090                         }
3091                         break;
3092                 }
3093         case SCTP_RECVRCVINFO:
3094                 {
3095                         int onoff;
3096
3097                         if (*optsize < sizeof(int)) {
3098                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                 error = EINVAL;
3100                         } else {
3101                                 SCTP_INP_RLOCK(inp);
3102                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3103                                 SCTP_INP_RUNLOCK(inp);
3104                         }
3105                         if (error == 0) {
3106                                 /* return the option value */
3107                                 *(int *)optval = onoff;
3108                                 *optsize = sizeof(int);
3109                         }
3110                         break;
3111                 }
3112         case SCTP_RECVNXTINFO:
3113                 {
3114                         int onoff;
3115
3116                         if (*optsize < sizeof(int)) {
3117                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3118                                 error = EINVAL;
3119                         } else {
3120                                 SCTP_INP_RLOCK(inp);
3121                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3122                                 SCTP_INP_RUNLOCK(inp);
3123                         }
3124                         if (error == 0) {
3125                                 /* return the option value */
3126                                 *(int *)optval = onoff;
3127                                 *optsize = sizeof(int);
3128                         }
3129                         break;
3130                 }
3131         case SCTP_DEFAULT_SNDINFO:
3132                 {
3133                         struct sctp_sndinfo *info;
3134
3135                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3136                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3137
3138                         if (stcb) {
3139                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3140                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3141                                 info->snd_flags &= 0xfff0;
3142                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3143                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3144                                 SCTP_TCB_UNLOCK(stcb);
3145                         } else {
3146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3148                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3149                                         SCTP_INP_RLOCK(inp);
3150                                         info->snd_sid = inp->def_send.sinfo_stream;
3151                                         info->snd_flags = inp->def_send.sinfo_flags;
3152                                         info->snd_flags &= 0xfff0;
3153                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3154                                         info->snd_context = inp->def_send.sinfo_context;
3155                                         SCTP_INP_RUNLOCK(inp);
3156                                 } else {
3157                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3158                                         error = EINVAL;
3159                                 }
3160                         }
3161                         if (error == 0) {
3162                                 *optsize = sizeof(struct sctp_sndinfo);
3163                         }
3164                         break;
3165                 }
3166         case SCTP_DEFAULT_PRINFO:
3167                 {
3168                         struct sctp_default_prinfo *info;
3169
3170                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3171                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3172
3173                         if (stcb) {
3174                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3175                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3176                                 SCTP_TCB_UNLOCK(stcb);
3177                         } else {
3178                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3179                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3180                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3181                                         SCTP_INP_RLOCK(inp);
3182                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3183                                         info->pr_value = inp->def_send.sinfo_timetolive;
3184                                         SCTP_INP_RUNLOCK(inp);
3185                                 } else {
3186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3187                                         error = EINVAL;
3188                                 }
3189                         }
3190                         if (error == 0) {
3191                                 *optsize = sizeof(struct sctp_default_prinfo);
3192                         }
3193                         break;
3194                 }
3195         case SCTP_PEER_ADDR_THLDS:
3196                 {
3197                         struct sctp_paddrthlds *thlds;
3198                         struct sctp_nets *net;
3199                         struct sockaddr *addr;
3200 #if defined(INET) && defined(INET6)
3201                         struct sockaddr_in sin_store;
3202 #endif
3203
3204                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3205                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3206
3207 #if defined(INET) && defined(INET6)
3208                         if (thlds->spt_address.ss_family == AF_INET6) {
3209                                 struct sockaddr_in6 *sin6;
3210
3211                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3212                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3213                                         in6_sin6_2_sin(&sin_store, sin6);
3214                                         addr = (struct sockaddr *)&sin_store;
3215                                 } else {
3216                                         addr = (struct sockaddr *)&thlds->spt_address;
3217                                 }
3218                         } else {
3219                                 addr = (struct sockaddr *)&thlds->spt_address;
3220                         }
3221 #else
3222                         addr = (struct sockaddr *)&thlds->spt_address;
3223 #endif
3224                         if (stcb != NULL) {
3225                                 net = sctp_findnet(stcb, addr);
3226                         } else {
3227                                 /*
3228                                  * We increment here since
3229                                  * sctp_findassociation_ep_addr() wil do a
3230                                  * decrement if it finds the stcb as long as
3231                                  * the locked tcb (last argument) is NOT a
3232                                  * TCB.. aka NULL.
3233                                  */
3234                                 net = NULL;
3235                                 SCTP_INP_INCR_REF(inp);
3236                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3237                                 if (stcb == NULL) {
3238                                         SCTP_INP_DECR_REF(inp);
3239                                 }
3240                         }
3241                         if ((stcb != NULL) && (net == NULL)) {
3242 #ifdef INET
3243                                 if (addr->sa_family == AF_INET) {
3244                                         struct sockaddr_in *sin;
3245
3246                                         sin = (struct sockaddr_in *)addr;
3247                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3248                                                 error = EINVAL;
3249                                                 SCTP_TCB_UNLOCK(stcb);
3250                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3251                                                 break;
3252                                         }
3253                                 } else
3254 #endif
3255 #ifdef INET6
3256                                 if (addr->sa_family == AF_INET6) {
3257                                         struct sockaddr_in6 *sin6;
3258
3259                                         sin6 = (struct sockaddr_in6 *)addr;
3260                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3261                                                 error = EINVAL;
3262                                                 SCTP_TCB_UNLOCK(stcb);
3263                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3264                                                 break;
3265                                         }
3266                                 } else
3267 #endif
3268                                 {
3269                                         error = EAFNOSUPPORT;
3270                                         SCTP_TCB_UNLOCK(stcb);
3271                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3272                                         break;
3273                                 }
3274                         }
3275
3276                         if (stcb != NULL) {
3277                                 if (net != NULL) {
3278                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3279                                         thlds->spt_pathpfthld = net->pf_threshold;
3280                                         thlds->spt_pathcpthld = 0xffff;
3281                                 } else {
3282                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3283                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3284                                         thlds->spt_pathcpthld = 0xffff;
3285                                 }
3286                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3287                                 SCTP_TCB_UNLOCK(stcb);
3288                         } else {
3289                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3290                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3291                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3292                                         /* Use endpoint defaults */
3293                                         SCTP_INP_RLOCK(inp);
3294                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3295                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3296                                         thlds->spt_pathcpthld = 0xffff;
3297                                         SCTP_INP_RUNLOCK(inp);
3298                                 } else {
3299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3300                                         error = EINVAL;
3301                                 }
3302                         }
3303                         if (error == 0) {
3304                                 *optsize = sizeof(struct sctp_paddrthlds);
3305                         }
3306                         break;
3307                 }
3308         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3309                 {
3310                         struct sctp_udpencaps *encaps;
3311                         struct sctp_nets *net;
3312                         struct sockaddr *addr;
3313 #if defined(INET) && defined(INET6)
3314                         struct sockaddr_in sin_store;
3315 #endif
3316
3317                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3318                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3319
3320 #if defined(INET) && defined(INET6)
3321                         if (encaps->sue_address.ss_family == AF_INET6) {
3322                                 struct sockaddr_in6 *sin6;
3323
3324                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3325                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3326                                         in6_sin6_2_sin(&sin_store, sin6);
3327                                         addr = (struct sockaddr *)&sin_store;
3328                                 } else {
3329                                         addr = (struct sockaddr *)&encaps->sue_address;
3330                                 }
3331                         } else {
3332                                 addr = (struct sockaddr *)&encaps->sue_address;
3333                         }
3334 #else
3335                         addr = (struct sockaddr *)&encaps->sue_address;
3336 #endif
3337                         if (stcb) {
3338                                 net = sctp_findnet(stcb, addr);
3339                         } else {
3340                                 /*
3341                                  * We increment here since
3342                                  * sctp_findassociation_ep_addr() wil do a
3343                                  * decrement if it finds the stcb as long as
3344                                  * the locked tcb (last argument) is NOT a
3345                                  * TCB.. aka NULL.
3346                                  */
3347                                 net = NULL;
3348                                 SCTP_INP_INCR_REF(inp);
3349                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3350                                 if (stcb == NULL) {
3351                                         SCTP_INP_DECR_REF(inp);
3352                                 }
3353                         }
3354                         if ((stcb != NULL) && (net == NULL)) {
3355 #ifdef INET
3356                                 if (addr->sa_family == AF_INET) {
3357                                         struct sockaddr_in *sin;
3358
3359                                         sin = (struct sockaddr_in *)addr;
3360                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3361                                                 error = EINVAL;
3362                                                 SCTP_TCB_UNLOCK(stcb);
3363                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3364                                                 break;
3365                                         }
3366                                 } else
3367 #endif
3368 #ifdef INET6
3369                                 if (addr->sa_family == AF_INET6) {
3370                                         struct sockaddr_in6 *sin6;
3371
3372                                         sin6 = (struct sockaddr_in6 *)addr;
3373                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3374                                                 error = EINVAL;
3375                                                 SCTP_TCB_UNLOCK(stcb);
3376                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3377                                                 break;
3378                                         }
3379                                 } else
3380 #endif
3381                                 {
3382                                         error = EAFNOSUPPORT;
3383                                         SCTP_TCB_UNLOCK(stcb);
3384                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3385                                         break;
3386                                 }
3387                         }
3388
3389                         if (stcb != NULL) {
3390                                 if (net) {
3391                                         encaps->sue_port = net->port;
3392                                 } else {
3393                                         encaps->sue_port = stcb->asoc.port;
3394                                 }
3395                                 SCTP_TCB_UNLOCK(stcb);
3396                         } else {
3397                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3398                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3399                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3400                                         SCTP_INP_RLOCK(inp);
3401                                         encaps->sue_port = inp->sctp_ep.port;
3402                                         SCTP_INP_RUNLOCK(inp);
3403                                 } else {
3404                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3405                                         error = EINVAL;
3406                                 }
3407                         }
3408                         if (error == 0) {
3409                                 *optsize = sizeof(struct sctp_udpencaps);
3410                         }
3411                         break;
3412                 }
3413         case SCTP_ECN_SUPPORTED:
3414                 {
3415                         struct sctp_assoc_value *av;
3416
3417                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3418                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3419
3420                         if (stcb) {
3421                                 av->assoc_value = stcb->asoc.ecn_supported;
3422                                 SCTP_TCB_UNLOCK(stcb);
3423                         } else {
3424                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3425                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3426                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3427                                         SCTP_INP_RLOCK(inp);
3428                                         av->assoc_value = inp->ecn_supported;
3429                                         SCTP_INP_RUNLOCK(inp);
3430                                 } else {
3431                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3432                                         error = EINVAL;
3433                                 }
3434                         }
3435                         if (error == 0) {
3436                                 *optsize = sizeof(struct sctp_assoc_value);
3437                         }
3438                         break;
3439                 }
3440         case SCTP_PR_SUPPORTED:
3441                 {
3442                         struct sctp_assoc_value *av;
3443
3444                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3445                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3446
3447                         if (stcb) {
3448                                 av->assoc_value = stcb->asoc.prsctp_supported;
3449                                 SCTP_TCB_UNLOCK(stcb);
3450                         } else {
3451                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3452                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3453                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3454                                         SCTP_INP_RLOCK(inp);
3455                                         av->assoc_value = inp->prsctp_supported;
3456                                         SCTP_INP_RUNLOCK(inp);
3457                                 } else {
3458                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3459                                         error = EINVAL;
3460                                 }
3461                         }
3462                         if (error == 0) {
3463                                 *optsize = sizeof(struct sctp_assoc_value);
3464                         }
3465                         break;
3466                 }
3467         case SCTP_AUTH_SUPPORTED:
3468                 {
3469                         struct sctp_assoc_value *av;
3470
3471                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3472                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3473
3474                         if (stcb) {
3475                                 av->assoc_value = stcb->asoc.auth_supported;
3476                                 SCTP_TCB_UNLOCK(stcb);
3477                         } else {
3478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3480                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3481                                         SCTP_INP_RLOCK(inp);
3482                                         av->assoc_value = inp->auth_supported;
3483                                         SCTP_INP_RUNLOCK(inp);
3484                                 } else {
3485                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3486                                         error = EINVAL;
3487                                 }
3488                         }
3489                         if (error == 0) {
3490                                 *optsize = sizeof(struct sctp_assoc_value);
3491                         }
3492                         break;
3493                 }
3494         case SCTP_ASCONF_SUPPORTED:
3495                 {
3496                         struct sctp_assoc_value *av;
3497
3498                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3499                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3500
3501                         if (stcb) {
3502                                 av->assoc_value = stcb->asoc.asconf_supported;
3503                                 SCTP_TCB_UNLOCK(stcb);
3504                         } else {
3505                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3506                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3507                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3508                                         SCTP_INP_RLOCK(inp);
3509                                         av->assoc_value = inp->asconf_supported;
3510                                         SCTP_INP_RUNLOCK(inp);
3511                                 } else {
3512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3513                                         error = EINVAL;
3514                                 }
3515                         }
3516                         if (error == 0) {
3517                                 *optsize = sizeof(struct sctp_assoc_value);
3518                         }
3519                         break;
3520                 }
3521         case SCTP_RECONFIG_SUPPORTED:
3522                 {
3523                         struct sctp_assoc_value *av;
3524
3525                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3526                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3527
3528                         if (stcb) {
3529                                 av->assoc_value = stcb->asoc.reconfig_supported;
3530                                 SCTP_TCB_UNLOCK(stcb);
3531                         } else {
3532                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3533                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3534                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3535                                         SCTP_INP_RLOCK(inp);
3536                                         av->assoc_value = inp->reconfig_supported;
3537                                         SCTP_INP_RUNLOCK(inp);
3538                                 } else {
3539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3540                                         error = EINVAL;
3541                                 }
3542                         }
3543                         if (error == 0) {
3544                                 *optsize = sizeof(struct sctp_assoc_value);
3545                         }
3546                         break;
3547                 }
3548         case SCTP_NRSACK_SUPPORTED:
3549                 {
3550                         struct sctp_assoc_value *av;
3551
3552                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3553                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3554
3555                         if (stcb) {
3556                                 av->assoc_value = stcb->asoc.nrsack_supported;
3557                                 SCTP_TCB_UNLOCK(stcb);
3558                         } else {
3559                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3560                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3561                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3562                                         SCTP_INP_RLOCK(inp);
3563                                         av->assoc_value = inp->nrsack_supported;
3564                                         SCTP_INP_RUNLOCK(inp);
3565                                 } else {
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         if (error == 0) {
3571                                 *optsize = sizeof(struct sctp_assoc_value);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_PKTDROP_SUPPORTED:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3581
3582                         if (stcb) {
3583                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3584                                 SCTP_TCB_UNLOCK(stcb);
3585                         } else {
3586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3588                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3589                                         SCTP_INP_RLOCK(inp);
3590                                         av->assoc_value = inp->pktdrop_supported;
3591                                         SCTP_INP_RUNLOCK(inp);
3592                                 } else {
3593                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3594                                         error = EINVAL;
3595                                 }
3596                         }
3597                         if (error == 0) {
3598                                 *optsize = sizeof(struct sctp_assoc_value);
3599                         }
3600                         break;
3601                 }
3602         case SCTP_ENABLE_STREAM_RESET:
3603                 {
3604                         struct sctp_assoc_value *av;
3605
3606                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3607                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3608
3609                         if (stcb) {
3610                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3611                                 SCTP_TCB_UNLOCK(stcb);
3612                         } else {
3613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3615                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3616                                         SCTP_INP_RLOCK(inp);
3617                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3618                                         SCTP_INP_RUNLOCK(inp);
3619                                 } else {
3620                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3621                                         error = EINVAL;
3622                                 }
3623                         }
3624                         if (error == 0) {
3625                                 *optsize = sizeof(struct sctp_assoc_value);
3626                         }
3627                         break;
3628                 }
3629         case SCTP_PR_STREAM_STATUS:
3630                 {
3631                         struct sctp_prstatus *sprstat;
3632                         uint16_t sid;
3633                         uint16_t policy;
3634
3635                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3636                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3637
3638                         sid = sprstat->sprstat_sid;
3639                         policy = sprstat->sprstat_policy;
3640 #if defined(SCTP_DETAILED_STR_STATS)
3641                         if ((stcb != NULL) &&
3642                             (sid < stcb->asoc.streamoutcnt) &&
3643                             (policy != SCTP_PR_SCTP_NONE) &&
3644                             ((policy <= SCTP_PR_SCTP_MAX) ||
3645                             (policy == SCTP_PR_SCTP_ALL))) {
3646                                 if (policy == SCTP_PR_SCTP_ALL) {
3647                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3648                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3649                                 } else {
3650                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3651                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3652                                 }
3653 #else
3654                         if ((stcb != NULL) &&
3655                             (sid < stcb->asoc.streamoutcnt) &&
3656                             (policy == SCTP_PR_SCTP_ALL)) {
3657                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3658                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3659 #endif
3660                         } else {
3661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3662                                 error = EINVAL;
3663                         }
3664                         if (stcb != NULL) {
3665                                 SCTP_TCB_UNLOCK(stcb);
3666                         }
3667                         if (error == 0) {
3668                                 *optsize = sizeof(struct sctp_prstatus);
3669                         }
3670                         break;
3671                 }
3672         case SCTP_PR_ASSOC_STATUS:
3673                 {
3674                         struct sctp_prstatus *sprstat;
3675                         uint16_t policy;
3676
3677                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3678                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3679
3680                         policy = sprstat->sprstat_policy;
3681                         if ((stcb != NULL) &&
3682                             (policy != SCTP_PR_SCTP_NONE) &&
3683                             ((policy <= SCTP_PR_SCTP_MAX) ||
3684                             (policy == SCTP_PR_SCTP_ALL))) {
3685                                 if (policy == SCTP_PR_SCTP_ALL) {
3686                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3687                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3688                                 } else {
3689                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3690                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3691                                 }
3692                         } else {
3693                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3694                                 error = EINVAL;
3695                         }
3696                         if (stcb != NULL) {
3697                                 SCTP_TCB_UNLOCK(stcb);
3698                         }
3699                         if (error == 0) {
3700                                 *optsize = sizeof(struct sctp_prstatus);
3701                         }
3702                         break;
3703                 }
3704         case SCTP_MAX_CWND:
3705                 {
3706                         struct sctp_assoc_value *av;
3707
3708                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3709                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3710
3711                         if (stcb) {
3712                                 av->assoc_value = stcb->asoc.max_cwnd;
3713                                 SCTP_TCB_UNLOCK(stcb);
3714                         } else {
3715                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3716                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3717                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3718                                         SCTP_INP_RLOCK(inp);
3719                                         av->assoc_value = inp->max_cwnd;
3720                                         SCTP_INP_RUNLOCK(inp);
3721                                 } else {
3722                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3723                                         error = EINVAL;
3724                                 }
3725                         }
3726                         if (error == 0) {
3727                                 *optsize = sizeof(struct sctp_assoc_value);
3728                         }
3729                         break;
3730                 }
3731         default:
3732                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3733                 error = ENOPROTOOPT;
3734                 break;
3735         }                       /* end switch (sopt->sopt_name) */
3736         if (error) {
3737                 *optsize = 0;
3738         }
3739         return (error);
3740 }
3741
3742 static int
3743 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3744     void *p)
3745 {
3746         int error, set_opt;
3747         uint32_t *mopt;
3748         struct sctp_tcb *stcb = NULL;
3749         struct sctp_inpcb *inp = NULL;
3750         uint32_t vrf_id;
3751
3752         if (optval == NULL) {
3753                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3754                 return (EINVAL);
3755         }
3756         inp = (struct sctp_inpcb *)so->so_pcb;
3757         if (inp == NULL) {
3758                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3759                 return (EINVAL);
3760         }
3761         vrf_id = inp->def_vrf_id;
3762
3763         error = 0;
3764         switch (optname) {
3765         case SCTP_NODELAY:
3766         case SCTP_AUTOCLOSE:
3767         case SCTP_AUTO_ASCONF:
3768         case SCTP_EXPLICIT_EOR:
3769         case SCTP_DISABLE_FRAGMENTS:
3770         case SCTP_USE_EXT_RCVINFO:
3771         case SCTP_I_WANT_MAPPED_V4_ADDR:
3772                 /* copy in the option value */
3773                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3774                 set_opt = 0;
3775                 if (error)
3776                         break;
3777                 switch (optname) {
3778                 case SCTP_DISABLE_FRAGMENTS:
3779                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3780                         break;
3781                 case SCTP_AUTO_ASCONF:
3782                         /*
3783                          * NOTE: we don't really support this flag
3784                          */
3785                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3786                                 /* only valid for bound all sockets */
3787                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3788                                     (*mopt != 0)) {
3789                                         /* forbidden by admin */
3790                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3791                                         return (EPERM);
3792                                 }
3793                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3794                         } else {
3795                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3796                                 return (EINVAL);
3797                         }
3798                         break;
3799                 case SCTP_EXPLICIT_EOR:
3800                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3801                         break;
3802                 case SCTP_USE_EXT_RCVINFO:
3803                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3804                         break;
3805                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3806                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3807                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3808                         } else {
3809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3810                                 return (EINVAL);
3811                         }
3812                         break;
3813                 case SCTP_NODELAY:
3814                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3815                         break;
3816                 case SCTP_AUTOCLOSE:
3817                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3818                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3819                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3820                                 return (EINVAL);
3821                         }
3822                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3823                         /*
3824                          * The value is in ticks. Note this does not effect
3825                          * old associations, only new ones.
3826                          */
3827                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3828                         break;
3829                 }
3830                 SCTP_INP_WLOCK(inp);
3831                 if (*mopt != 0) {
3832                         sctp_feature_on(inp, set_opt);
3833                 } else {
3834                         sctp_feature_off(inp, set_opt);
3835                 }
3836                 SCTP_INP_WUNLOCK(inp);
3837                 break;
3838         case SCTP_REUSE_PORT:
3839                 {
3840                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3841                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3842                                 /* Can't set it after we are bound */
3843                                 error = EINVAL;
3844                                 break;
3845                         }
3846                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3847                                 /* Can't do this for a 1-m socket */
3848                                 error = EINVAL;
3849                                 break;
3850                         }
3851                         if (optval)
3852                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3853                         else
3854                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3855                         break;
3856                 }
3857         case SCTP_PARTIAL_DELIVERY_POINT:
3858                 {
3859                         uint32_t *value;
3860
3861                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3862                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3864                                 error = EINVAL;
3865                                 break;
3866                         }
3867                         inp->partial_delivery_point = *value;
3868                         break;
3869                 }
3870         case SCTP_FRAGMENT_INTERLEAVE:
3871                 /* not yet until we re-write sctp_recvmsg() */
3872                 {
3873                         uint32_t *level;
3874
3875                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3876                         if (*level == SCTP_FRAG_LEVEL_2) {
3877                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3878                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3879                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3880                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3882                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3883                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3884                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3885
3886                         } else {
3887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3888                                 error = EINVAL;
3889                         }
3890                         break;
3891                 }
3892         case SCTP_INTERLEAVING_SUPPORTED:
3893                 {
3894                         struct sctp_assoc_value *av;
3895
3896                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3897                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3898
3899                         if (stcb) {
3900                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3901                                 error = EINVAL;
3902                                 SCTP_TCB_UNLOCK(stcb);
3903                         } else {
3904                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3905                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3906                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3907                                         SCTP_INP_WLOCK(inp);
3908                                         if (av->assoc_value == 0) {
3909                                                 inp->idata_supported = 0;
3910                                         } else {
3911                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3912                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3913                                                         inp->idata_supported = 1;
3914                                                 } else {
3915                                                         /*
3916                                                          * Must have Frag
3917                                                          * interleave and
3918                                                          * stream interleave
3919                                                          * on
3920                                                          */
3921                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3922                                                         error = EINVAL;
3923                                                 }
3924                                         }
3925                                         SCTP_INP_WUNLOCK(inp);
3926                                 } else {
3927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3928                                         error = EINVAL;
3929                                 }
3930                         }
3931                         break;
3932                 }
3933         case SCTP_CMT_ON_OFF:
3934                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3935                         struct sctp_assoc_value *av;
3936
3937                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3938                         if (av->assoc_value > SCTP_CMT_MAX) {
3939                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3940                                 error = EINVAL;
3941                                 break;
3942                         }
3943                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3944                         if (stcb) {
3945                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3946                                 SCTP_TCB_UNLOCK(stcb);
3947                         } else {
3948                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3949                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3950                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3951                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3952                                         SCTP_INP_WLOCK(inp);
3953                                         inp->sctp_cmt_on_off = av->assoc_value;
3954                                         SCTP_INP_WUNLOCK(inp);
3955                                 }
3956                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3957                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3958                                         SCTP_INP_RLOCK(inp);
3959                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3960                                                 SCTP_TCB_LOCK(stcb);
3961                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3962                                                 SCTP_TCB_UNLOCK(stcb);
3963                                         }
3964                                         SCTP_INP_RUNLOCK(inp);
3965                                 }
3966                         }
3967                 } else {
3968                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3969                         error = ENOPROTOOPT;
3970                 }
3971                 break;
3972         case SCTP_PLUGGABLE_CC:
3973                 {
3974                         struct sctp_assoc_value *av;
3975                         struct sctp_nets *net;
3976
3977                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3978                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3979                             (av->assoc_value != SCTP_CC_HSTCP) &&
3980                             (av->assoc_value != SCTP_CC_HTCP) &&
3981                             (av->assoc_value != SCTP_CC_RTCC)) {
3982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3983                                 error = EINVAL;
3984                                 break;
3985                         }
3986                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3987                         if (stcb) {
3988                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3989                                 stcb->asoc.congestion_control_module = av->assoc_value;
3990                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3991                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3992                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3993                                         }
3994                                 }
3995                                 SCTP_TCB_UNLOCK(stcb);
3996                         } else {
3997                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3998                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3999                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4000                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4001                                         SCTP_INP_WLOCK(inp);
4002                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4003                                         SCTP_INP_WUNLOCK(inp);
4004                                 }
4005                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4006                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4007                                         SCTP_INP_RLOCK(inp);
4008                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4009                                                 SCTP_TCB_LOCK(stcb);
4010                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4011                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4012                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4013                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4014                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4015                                                         }
4016                                                 }
4017                                                 SCTP_TCB_UNLOCK(stcb);
4018                                         }
4019                                         SCTP_INP_RUNLOCK(inp);
4020                                 }
4021                         }
4022                         break;
4023                 }
4024         case SCTP_CC_OPTION:
4025                 {
4026                         struct sctp_cc_option *cc_opt;
4027
4028                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4029                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4030                         if (stcb == NULL) {
4031                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4032                                         SCTP_INP_RLOCK(inp);
4033                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4034                                                 SCTP_TCB_LOCK(stcb);
4035                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4036                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4037                                                 }
4038                                                 SCTP_TCB_UNLOCK(stcb);
4039                                         }
4040                                         SCTP_INP_RUNLOCK(inp);
4041                                 } else {
4042                                         error = EINVAL;
4043                                 }
4044                         } else {
4045                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4046                                         error = ENOTSUP;
4047                                 } else {
4048                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4049                                             cc_opt);
4050                                 }
4051                                 SCTP_TCB_UNLOCK(stcb);
4052                         }
4053                         break;
4054                 }
4055         case SCTP_PLUGGABLE_SS:
4056                 {
4057                         struct sctp_assoc_value *av;
4058
4059                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4060                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4061                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4062                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4063                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4064                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4065                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4066                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4067                                 error = EINVAL;
4068                                 break;
4069                         }
4070                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4071                         if (stcb) {
4072                                 SCTP_TCB_SEND_LOCK(stcb);
4073                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4074                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4075                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4076                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4077                                 SCTP_TCB_SEND_UNLOCK(stcb);
4078                                 SCTP_TCB_UNLOCK(stcb);
4079                         } else {
4080                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4081                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4082                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4083                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4084                                         SCTP_INP_WLOCK(inp);
4085                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4086                                         SCTP_INP_WUNLOCK(inp);
4087                                 }
4088                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4089                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4090                                         SCTP_INP_RLOCK(inp);
4091                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4092                                                 SCTP_TCB_LOCK(stcb);
4093                                                 SCTP_TCB_SEND_LOCK(stcb);
4094                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4095                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4096                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4097                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4098                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4099                                                 SCTP_TCB_UNLOCK(stcb);
4100                                         }
4101                                         SCTP_INP_RUNLOCK(inp);
4102                                 }
4103                         }
4104                         break;
4105                 }
4106         case SCTP_SS_VALUE:
4107                 {
4108                         struct sctp_stream_value *av;
4109
4110                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4111                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4112                         if (stcb) {
4113                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4114                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4115                                     av->stream_value) < 0)) {
4116                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4117                                         error = EINVAL;
4118                                 }
4119                                 SCTP_TCB_UNLOCK(stcb);
4120                         } else {
4121                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4122                                         SCTP_INP_RLOCK(inp);
4123                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4124                                                 SCTP_TCB_LOCK(stcb);
4125                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4126                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4127                                                             &stcb->asoc,
4128                                                             &stcb->asoc.strmout[av->stream_id],
4129                                                             av->stream_value);
4130                                                 }
4131                                                 SCTP_TCB_UNLOCK(stcb);
4132                                         }
4133                                         SCTP_INP_RUNLOCK(inp);
4134                                 } else {
4135                                         /*
4136                                          * Can't set stream value without
4137                                          * association
4138                                          */
4139                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4140                                         error = EINVAL;
4141                                 }
4142                         }
4143                         break;
4144                 }
4145         case SCTP_CLR_STAT_LOG:
4146                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4147                 error = EOPNOTSUPP;
4148                 break;
4149         case SCTP_CONTEXT:
4150                 {
4151                         struct sctp_assoc_value *av;
4152
4153                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4154                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4155
4156                         if (stcb) {
4157                                 stcb->asoc.context = av->assoc_value;
4158                                 SCTP_TCB_UNLOCK(stcb);
4159                         } else {
4160                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4161                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4162                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4163                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4164                                         SCTP_INP_WLOCK(inp);
4165                                         inp->sctp_context = av->assoc_value;
4166                                         SCTP_INP_WUNLOCK(inp);
4167                                 }
4168                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4169                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4170                                         SCTP_INP_RLOCK(inp);
4171                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4172                                                 SCTP_TCB_LOCK(stcb);
4173                                                 stcb->asoc.context = av->assoc_value;
4174                                                 SCTP_TCB_UNLOCK(stcb);
4175                                         }
4176                                         SCTP_INP_RUNLOCK(inp);
4177                                 }
4178                         }
4179                         break;
4180                 }
4181         case SCTP_VRF_ID:
4182                 {
4183                         uint32_t *default_vrfid;
4184
4185                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4186                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4187                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4188                                 error = EINVAL;
4189                                 break;
4190                         }
4191                         inp->def_vrf_id = *default_vrfid;
4192                         break;
4193                 }
4194         case SCTP_DEL_VRF_ID:
4195                 {
4196                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4197                         error = EOPNOTSUPP;
4198                         break;
4199                 }
4200         case SCTP_ADD_VRF_ID:
4201                 {
4202                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4203                         error = EOPNOTSUPP;
4204                         break;
4205                 }
4206         case SCTP_DELAYED_SACK:
4207                 {
4208                         struct sctp_sack_info *sack;
4209
4210                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4211                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4212                         if (sack->sack_delay) {
4213                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4214                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4215                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4216                                         sack->sack_delay = TICKS_TO_MSEC(1);
4217                                 }
4218                         }
4219                         if (stcb) {
4220                                 if (sack->sack_delay) {
4221                                         stcb->asoc.delayed_ack = sack->sack_delay;
4222                                 }
4223                                 if (sack->sack_freq) {
4224                                         stcb->asoc.sack_freq = sack->sack_freq;
4225                                 }
4226                                 SCTP_TCB_UNLOCK(stcb);
4227                         } else {
4228                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4229                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4230                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4231                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4232                                         SCTP_INP_WLOCK(inp);
4233                                         if (sack->sack_delay) {
4234                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4235                                         }
4236                                         if (sack->sack_freq) {
4237                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4238                                         }
4239                                         SCTP_INP_WUNLOCK(inp);
4240                                 }
4241                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4242                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4243                                         SCTP_INP_RLOCK(inp);
4244                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4245                                                 SCTP_TCB_LOCK(stcb);
4246                                                 if (sack->sack_delay) {
4247                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4248                                                 }
4249                                                 if (sack->sack_freq) {
4250                                                         stcb->asoc.sack_freq = sack->sack_freq;
4251                                                 }
4252                                                 SCTP_TCB_UNLOCK(stcb);
4253                                         }
4254                                         SCTP_INP_RUNLOCK(inp);
4255                                 }
4256                         }
4257                         break;
4258                 }
4259         case SCTP_AUTH_CHUNK:
4260                 {
4261                         struct sctp_authchunk *sauth;
4262
4263                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4264
4265                         SCTP_INP_WLOCK(inp);
4266                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4267                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4268                                 error = EINVAL;
4269                         } else {
4270                                 inp->auth_supported = 1;
4271                         }
4272                         SCTP_INP_WUNLOCK(inp);
4273                         break;
4274                 }
4275         case SCTP_AUTH_KEY:
4276                 {
4277                         struct sctp_authkey *sca;
4278                         struct sctp_keyhead *shared_keys;
4279                         sctp_sharedkey_t *shared_key;
4280                         sctp_key_t *key = NULL;
4281                         size_t size;
4282
4283                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4284                         if (sca->sca_keylength == 0) {
4285                                 size = optsize - sizeof(struct sctp_authkey);
4286                         } else {
4287                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4288                                         size = sca->sca_keylength;
4289                                 } else {
4290                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4291                                         error = EINVAL;
4292                                         break;
4293                                 }
4294                         }
4295                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4296
4297                         if (stcb) {
4298                                 shared_keys = &stcb->asoc.shared_keys;
4299                                 /* clear the cached keys for this key id */
4300                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4301                                 /*
4302                                  * create the new shared key and
4303                                  * insert/replace it
4304                                  */
4305                                 if (size > 0) {
4306                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4307                                         if (key == NULL) {
4308                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4309                                                 error = ENOMEM;
4310                                                 SCTP_TCB_UNLOCK(stcb);
4311                                                 break;
4312                                         }
4313                                 }
4314                                 shared_key = sctp_alloc_sharedkey();
4315                                 if (shared_key == NULL) {
4316                                         sctp_free_key(key);
4317                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4318                                         error = ENOMEM;
4319                                         SCTP_TCB_UNLOCK(stcb);
4320                                         break;
4321                                 }
4322                                 shared_key->key = key;
4323                                 shared_key->keyid = sca->sca_keynumber;
4324                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4325                                 SCTP_TCB_UNLOCK(stcb);
4326                         } else {
4327                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4328                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4329                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4330                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4331                                         SCTP_INP_WLOCK(inp);
4332                                         shared_keys = &inp->sctp_ep.shared_keys;
4333                                         /*
4334                                          * clear the cached keys on all
4335                                          * assocs for this key id
4336                                          */
4337                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4338                                         /*
4339                                          * create the new shared key and
4340                                          * insert/replace it
4341                                          */
4342                                         if (size > 0) {
4343                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4344                                                 if (key == NULL) {
4345                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4346                                                         error = ENOMEM;
4347                                                         SCTP_INP_WUNLOCK(inp);
4348                                                         break;
4349                                                 }
4350                                         }
4351                                         shared_key = sctp_alloc_sharedkey();
4352                                         if (shared_key == NULL) {
4353                                                 sctp_free_key(key);
4354                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4355                                                 error = ENOMEM;
4356                                                 SCTP_INP_WUNLOCK(inp);
4357                                                 break;
4358                                         }
4359                                         shared_key->key = key;
4360                                         shared_key->keyid = sca->sca_keynumber;
4361                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4362                                         SCTP_INP_WUNLOCK(inp);
4363                                 }
4364                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4365                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4366                                         SCTP_INP_RLOCK(inp);
4367                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4368                                                 SCTP_TCB_LOCK(stcb);
4369                                                 shared_keys = &stcb->asoc.shared_keys;
4370                                                 /*
4371                                                  * clear the cached keys for
4372                                                  * this key id
4373                                                  */
4374                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4375                                                 /*
4376                                                  * create the new shared key
4377                                                  * and insert/replace it
4378                                                  */
4379                                                 if (size > 0) {
4380                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4381                                                         if (key == NULL) {
4382                                                                 SCTP_TCB_UNLOCK(stcb);
4383                                                                 continue;
4384                                                         }
4385                                                 }
4386                                                 shared_key = sctp_alloc_sharedkey();
4387                                                 if (shared_key == NULL) {
4388                                                         sctp_free_key(key);
4389                                                         SCTP_TCB_UNLOCK(stcb);
4390                                                         continue;
4391                                                 }
4392                                                 shared_key->key = key;
4393                                                 shared_key->keyid = sca->sca_keynumber;
4394                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4395                                                 SCTP_TCB_UNLOCK(stcb);
4396                                         }
4397                                         SCTP_INP_RUNLOCK(inp);
4398                                 }
4399                         }
4400                         break;
4401                 }
4402         case SCTP_HMAC_IDENT:
4403                 {
4404                         struct sctp_hmacalgo *shmac;
4405                         sctp_hmaclist_t *hmaclist;
4406                         uint16_t hmacid;
4407                         uint32_t i;
4408
4409                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4410                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4411                             (shmac->shmac_number_of_idents > 0xffff)) {
4412                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4413                                 error = EINVAL;
4414                                 break;
4415                         }
4416
4417                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4418                         if (hmaclist == NULL) {
4419                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4420                                 error = ENOMEM;
4421                                 break;
4422                         }
4423                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4424                                 hmacid = shmac->shmac_idents[i];
4425                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4426                                          /* invalid HMACs were found */ ;
4427                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4428                                         error = EINVAL;
4429                                         sctp_free_hmaclist(hmaclist);
4430                                         goto sctp_set_hmac_done;
4431                                 }
4432                         }
4433                         for (i = 0; i < hmaclist->num_algo; i++) {
4434                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4435                                         /* already in list */
4436                                         break;
4437                                 }
4438                         }
4439                         if (i == hmaclist->num_algo) {
4440                                 /* not found in list */
4441                                 sctp_free_hmaclist(hmaclist);
4442                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4443                                 error = EINVAL;
4444                                 break;
4445                         }
4446                         /* set it on the endpoint */
4447                         SCTP_INP_WLOCK(inp);
4448                         if (inp->sctp_ep.local_hmacs)
4449                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4450                         inp->sctp_ep.local_hmacs = hmaclist;
4451                         SCTP_INP_WUNLOCK(inp);
4452         sctp_set_hmac_done:
4453                         break;
4454                 }
4455         case SCTP_AUTH_ACTIVE_KEY:
4456                 {
4457                         struct sctp_authkeyid *scact;
4458
4459                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4460                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4461
4462                         /* set the active key on the right place */
4463                         if (stcb) {
4464                                 /* set the active key on the assoc */
4465                                 if (sctp_auth_setactivekey(stcb,
4466                                     scact->scact_keynumber)) {
4467                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4468                                             SCTP_FROM_SCTP_USRREQ,
4469                                             EINVAL);
4470                                         error = EINVAL;
4471                                 }
4472                                 SCTP_TCB_UNLOCK(stcb);
4473                         } else {
4474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4476                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4477                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4478                                         SCTP_INP_WLOCK(inp);
4479                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4480                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4481                                                 error = EINVAL;
4482                                         }
4483                                         SCTP_INP_WUNLOCK(inp);
4484                                 }
4485                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4486                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4487                                         SCTP_INP_RLOCK(inp);
4488                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4489                                                 SCTP_TCB_LOCK(stcb);
4490                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4491                                                 SCTP_TCB_UNLOCK(stcb);
4492                                         }
4493                                         SCTP_INP_RUNLOCK(inp);
4494                                 }
4495                         }
4496                         break;
4497                 }
4498         case SCTP_AUTH_DELETE_KEY:
4499                 {
4500                         struct sctp_authkeyid *scdel;
4501
4502                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4503                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4504
4505                         /* delete the key from the right place */
4506                         if (stcb) {
4507                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4509                                         error = EINVAL;
4510                                 }
4511                                 SCTP_TCB_UNLOCK(stcb);
4512                         } else {
4513                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4514                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4515                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4516                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4517                                         SCTP_INP_WLOCK(inp);
4518                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4519                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4520                                                 error = EINVAL;
4521                                         }
4522                                         SCTP_INP_WUNLOCK(inp);
4523                                 }
4524                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4525                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4526                                         SCTP_INP_RLOCK(inp);
4527                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4528                                                 SCTP_TCB_LOCK(stcb);
4529                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4530                                                 SCTP_TCB_UNLOCK(stcb);
4531                                         }
4532                                         SCTP_INP_RUNLOCK(inp);
4533                                 }
4534                         }
4535                         break;
4536                 }
4537         case SCTP_AUTH_DEACTIVATE_KEY:
4538                 {
4539                         struct sctp_authkeyid *keyid;
4540
4541                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4542                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4543
4544                         /* deactivate the key from the right place */
4545                         if (stcb) {
4546                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4547                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4548                                         error = EINVAL;
4549                                 }
4550                                 SCTP_TCB_UNLOCK(stcb);
4551                         } else {
4552                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4553                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4554                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4555                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4556                                         SCTP_INP_WLOCK(inp);
4557                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4558                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4559                                                 error = EINVAL;
4560                                         }
4561                                         SCTP_INP_WUNLOCK(inp);
4562                                 }
4563                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4564                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4565                                         SCTP_INP_RLOCK(inp);
4566                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4567                                                 SCTP_TCB_LOCK(stcb);
4568                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4569                                                 SCTP_TCB_UNLOCK(stcb);
4570                                         }
4571                                         SCTP_INP_RUNLOCK(inp);
4572                                 }
4573                         }
4574                         break;
4575                 }
4576         case SCTP_ENABLE_STREAM_RESET:
4577                 {
4578                         struct sctp_assoc_value *av;
4579
4580                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4581                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4583                                 error = EINVAL;
4584                                 break;
4585                         }
4586                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4587                         if (stcb) {
4588                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4589                                 SCTP_TCB_UNLOCK(stcb);
4590                         } else {
4591                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4592                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4593                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4594                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4595                                         SCTP_INP_WLOCK(inp);
4596                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4597                                         SCTP_INP_WUNLOCK(inp);
4598                                 }
4599                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4600                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4601                                         SCTP_INP_RLOCK(inp);
4602                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4603                                                 SCTP_TCB_LOCK(stcb);
4604                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4605                                                 SCTP_TCB_UNLOCK(stcb);
4606                                         }
4607                                         SCTP_INP_RUNLOCK(inp);
4608                                 }
4609
4610                         }
4611                         break;
4612                 }
4613         case SCTP_RESET_STREAMS:
4614                 {
4615                         struct sctp_reset_streams *strrst;
4616                         int i, send_out = 0;
4617                         int send_in = 0;
4618
4619                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4620                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4621                         if (stcb == NULL) {
4622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4623                                 error = ENOENT;
4624                                 break;
4625                         }
4626                         if (stcb->asoc.reconfig_supported == 0) {
4627                                 /*
4628                                  * Peer does not support the chunk type.
4629                                  */
4630                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4631                                 error = EOPNOTSUPP;
4632                                 SCTP_TCB_UNLOCK(stcb);
4633                                 break;
4634                         }
4635                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4637                                 error = EINVAL;
4638                                 SCTP_TCB_UNLOCK(stcb);
4639                                 break;
4640                         }
4641                         if (sizeof(struct sctp_reset_streams) +
4642                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4643                                 error = EINVAL;
4644                                 SCTP_TCB_UNLOCK(stcb);
4645                                 break;
4646                         }
4647                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4648                                 send_in = 1;
4649                                 if (stcb->asoc.stream_reset_outstanding) {
4650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4651                                         error = EALREADY;
4652                                         SCTP_TCB_UNLOCK(stcb);
4653                                         break;
4654                                 }
4655                         }
4656                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4657                                 send_out = 1;
4658                         }
4659                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4660                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4661                                 error = ENOMEM;
4662                                 SCTP_TCB_UNLOCK(stcb);
4663                                 break;
4664                         }
4665                         if ((send_in == 0) && (send_out == 0)) {
4666                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4667                                 error = EINVAL;
4668                                 SCTP_TCB_UNLOCK(stcb);
4669                                 break;
4670                         }
4671                         for (i = 0; i < strrst->srs_number_streams; i++) {
4672                                 if ((send_in) &&
4673                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4675                                         error = EINVAL;
4676                                         break;
4677                                 }
4678                                 if ((send_out) &&
4679                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4680                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4681                                         error = EINVAL;
4682                                         break;
4683                                 }
4684                         }
4685                         if (error) {
4686                                 SCTP_TCB_UNLOCK(stcb);
4687                                 break;
4688                         }
4689                         if (send_out) {
4690                                 int cnt;
4691                                 uint16_t strm;
4692
4693                                 if (strrst->srs_number_streams) {
4694                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4695                                                 strm = strrst->srs_stream_list[i];
4696                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4697                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4698                                                         cnt++;
4699                                                 }
4700                                         }
4701                                 } else {
4702                                         /* Its all */
4703                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4704                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4705                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4706                                                         cnt++;
4707                                                 }
4708                                         }
4709                                 }
4710                         }
4711                         if (send_in) {
4712                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4713                                     strrst->srs_stream_list,
4714                                     send_in, 0, 0, 0, 0, 0);
4715                         } else {
4716                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4717                         }
4718                         if (error == 0) {
4719                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4720                         } else {
4721                                 /*
4722                                  * For outgoing streams don't report any
4723                                  * problems in sending the request to the
4724                                  * application. XXX: Double check resetting
4725                                  * incoming streams.
4726                                  */
4727                                 error = 0;
4728                         }
4729                         SCTP_TCB_UNLOCK(stcb);
4730                         break;
4731                 }
4732         case SCTP_ADD_STREAMS:
4733                 {
4734                         struct sctp_add_streams *stradd;
4735                         uint8_t addstream = 0;
4736                         uint16_t add_o_strmcnt = 0;
4737                         uint16_t add_i_strmcnt = 0;
4738
4739                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4740                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4741                         if (stcb == NULL) {
4742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4743                                 error = ENOENT;
4744                                 break;
4745                         }
4746                         if (stcb->asoc.reconfig_supported == 0) {
4747                                 /*
4748                                  * Peer does not support the chunk type.
4749                                  */
4750                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4751                                 error = EOPNOTSUPP;
4752                                 SCTP_TCB_UNLOCK(stcb);
4753                                 break;
4754                         }
4755                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4756                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4757                                 error = EINVAL;
4758                                 SCTP_TCB_UNLOCK(stcb);
4759                                 break;
4760                         }
4761                         if (stcb->asoc.stream_reset_outstanding) {
4762                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4763                                 error = EALREADY;
4764                                 SCTP_TCB_UNLOCK(stcb);
4765                                 break;
4766                         }
4767                         if ((stradd->sas_outstrms == 0) &&
4768                             (stradd->sas_instrms == 0)) {
4769                                 error = EINVAL;
4770                                 goto skip_stuff;
4771                         }
4772                         if (stradd->sas_outstrms) {
4773                                 addstream = 1;
4774                                 /* We allocate here */
4775                                 add_o_strmcnt = stradd->sas_outstrms;
4776                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4777                                         /* You can't have more than 64k */
4778                                         error = EINVAL;
4779                                         goto skip_stuff;
4780                                 }
4781                         }
4782                         if (stradd->sas_instrms) {
4783                                 int cnt;
4784
4785                                 addstream |= 2;
4786                                 /*
4787                                  * We allocate inside
4788                                  * sctp_send_str_reset_req()
4789                                  */
4790                                 add_i_strmcnt = stradd->sas_instrms;
4791                                 cnt = add_i_strmcnt;
4792                                 cnt += stcb->asoc.streamincnt;
4793                                 if (cnt > 0x0000ffff) {
4794                                         /* You can't have more than 64k */
4795                                         error = EINVAL;
4796                                         goto skip_stuff;
4797                                 }
4798                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4799                                         /* More than you are allowed */
4800                                         error = EINVAL;
4801                                         goto skip_stuff;
4802                                 }
4803                         }
4804                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4805                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4806         skip_stuff:
4807                         SCTP_TCB_UNLOCK(stcb);
4808                         break;
4809                 }
4810         case SCTP_RESET_ASSOC:
4811                 {
4812                         int i;
4813                         uint32_t *value;
4814
4815                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4816                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4817                         if (stcb == NULL) {
4818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4819                                 error = ENOENT;
4820                                 break;
4821                         }
4822                         if (stcb->asoc.reconfig_supported == 0) {
4823                                 /*
4824                                  * Peer does not support the chunk type.
4825                                  */
4826                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4827                                 error = EOPNOTSUPP;
4828                                 SCTP_TCB_UNLOCK(stcb);
4829                                 break;
4830                         }
4831                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4832                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4833                                 error = EINVAL;
4834                                 SCTP_TCB_UNLOCK(stcb);
4835                                 break;
4836                         }
4837                         if (stcb->asoc.stream_reset_outstanding) {
4838                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4839                                 error = EALREADY;
4840                                 SCTP_TCB_UNLOCK(stcb);
4841                                 break;
4842                         }
4843                         /*
4844                          * Is there any data pending in the send or sent
4845                          * queues?
4846                          */
4847                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4848                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4849                 busy_out:
4850                                 error = EBUSY;
4851                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4852                                 SCTP_TCB_UNLOCK(stcb);
4853                                 break;
4854                         }
4855                         /* Do any streams have data queued? */
4856                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4857                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4858                                         goto busy_out;
4859                                 }
4860                         }
4861                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4862                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4863                         SCTP_TCB_UNLOCK(stcb);
4864                         break;
4865                 }
4866         case SCTP_CONNECT_X:
4867                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4868                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4869                         error = EINVAL;
4870                         break;
4871                 }
4872                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4873                 break;
4874         case SCTP_CONNECT_X_DELAYED:
4875                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4876                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4877                         error = EINVAL;
4878                         break;
4879                 }
4880                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4881                 break;
4882         case SCTP_CONNECT_X_COMPLETE:
4883                 {
4884                         struct sockaddr *sa;
4885
4886                         /* FIXME MT: check correct? */
4887                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4888
4889                         /* find tcb */
4890                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4891                                 SCTP_INP_RLOCK(inp);
4892                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4893                                 if (stcb) {
4894                                         SCTP_TCB_LOCK(stcb);
4895                                 }
4896                                 SCTP_INP_RUNLOCK(inp);
4897                         } else {
4898                                 /*
4899                                  * We increment here since
4900                                  * sctp_findassociation_ep_addr() wil do a
4901                                  * decrement if it finds the stcb as long as
4902                                  * the locked tcb (last argument) is NOT a
4903                                  * TCB.. aka NULL.
4904                                  */
4905                                 SCTP_INP_INCR_REF(inp);
4906                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4907                                 if (stcb == NULL) {
4908                                         SCTP_INP_DECR_REF(inp);
4909                                 }
4910                         }
4911
4912                         if (stcb == NULL) {
4913                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4914                                 error = ENOENT;
4915                                 break;
4916                         }
4917                         if (stcb->asoc.delayed_connection == 1) {
4918                                 stcb->asoc.delayed_connection = 0;
4919                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4920                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4921                                     stcb->asoc.primary_destination,
4922                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4923                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4924                         } else {
4925                                 /*
4926                                  * already expired or did not use delayed
4927                                  * connectx
4928                                  */
4929                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4930                                 error = EALREADY;
4931                         }
4932                         SCTP_TCB_UNLOCK(stcb);
4933                         break;
4934                 }
4935         case SCTP_MAX_BURST:
4936                 {
4937                         struct sctp_assoc_value *av;
4938
4939                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4940                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4941
4942                         if (stcb) {
4943                                 stcb->asoc.max_burst = av->assoc_value;
4944                                 SCTP_TCB_UNLOCK(stcb);
4945                         } else {
4946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4948                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4949                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4950                                         SCTP_INP_WLOCK(inp);
4951                                         inp->sctp_ep.max_burst = av->assoc_value;
4952                                         SCTP_INP_WUNLOCK(inp);
4953                                 }
4954                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4955                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4956                                         SCTP_INP_RLOCK(inp);
4957                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4958                                                 SCTP_TCB_LOCK(stcb);
4959                                                 stcb->asoc.max_burst = av->assoc_value;
4960                                                 SCTP_TCB_UNLOCK(stcb);
4961                                         }
4962                                         SCTP_INP_RUNLOCK(inp);
4963                                 }
4964                         }
4965                         break;
4966                 }
4967         case SCTP_MAXSEG:
4968                 {
4969                         struct sctp_assoc_value *av;
4970                         int ovh;
4971
4972                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4973                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4974
4975                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4976                                 ovh = SCTP_MED_OVERHEAD;
4977                         } else {
4978                                 ovh = SCTP_MED_V4_OVERHEAD;
4979                         }
4980                         if (stcb) {
4981                                 if (av->assoc_value) {
4982                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4983                                 } else {
4984                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4985                                 }
4986                                 SCTP_TCB_UNLOCK(stcb);
4987                         } else {
4988                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4989                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4990                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4991                                         SCTP_INP_WLOCK(inp);
4992                                         /*
4993                                          * FIXME MT: I think this is not in
4994                                          * tune with the API ID
4995                                          */
4996                                         if (av->assoc_value) {
4997                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4998                                         } else {
4999                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5000                                         }
5001                                         SCTP_INP_WUNLOCK(inp);
5002                                 } else {
5003                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5004                                         error = EINVAL;
5005                                 }
5006                         }
5007                         break;
5008                 }
5009         case SCTP_EVENTS:
5010                 {
5011                         struct sctp_event_subscribe *events;
5012
5013                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5014
5015                         SCTP_INP_WLOCK(inp);
5016                         if (events->sctp_data_io_event) {
5017                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5018                         } else {
5019                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5020                         }
5021
5022                         if (events->sctp_association_event) {
5023                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5024                         } else {
5025                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5026                         }
5027
5028                         if (events->sctp_address_event) {
5029                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5030                         } else {
5031                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5032                         }
5033
5034                         if (events->sctp_send_failure_event) {
5035                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5036                         } else {
5037                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5038                         }
5039
5040                         if (events->sctp_peer_error_event) {
5041                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5042                         } else {
5043                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5044                         }
5045
5046                         if (events->sctp_shutdown_event) {
5047                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5048                         } else {
5049                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5050                         }
5051
5052                         if (events->sctp_partial_delivery_event) {
5053                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5054                         } else {
5055                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5056                         }
5057
5058                         if (events->sctp_adaptation_layer_event) {
5059                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5060                         } else {
5061                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5062                         }
5063
5064                         if (events->sctp_authentication_event) {
5065                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5066                         } else {
5067                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5068                         }
5069
5070                         if (events->sctp_sender_dry_event) {
5071                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5072                         } else {
5073                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5074                         }
5075
5076                         if (events->sctp_stream_reset_event) {
5077                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5078                         } else {
5079                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5080                         }
5081                         SCTP_INP_WUNLOCK(inp);
5082
5083                         SCTP_INP_RLOCK(inp);
5084                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5085                                 SCTP_TCB_LOCK(stcb);
5086                                 if (events->sctp_association_event) {
5087                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5088                                 } else {
5089                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5090                                 }
5091                                 if (events->sctp_address_event) {
5092                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5093                                 } else {
5094                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5095                                 }
5096                                 if (events->sctp_send_failure_event) {
5097                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5098                                 } else {
5099                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5100                                 }
5101                                 if (events->sctp_peer_error_event) {
5102                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5103                                 } else {
5104                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5105                                 }
5106                                 if (events->sctp_shutdown_event) {
5107                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5108                                 } else {
5109                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5110                                 }
5111                                 if (events->sctp_partial_delivery_event) {
5112                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5113                                 } else {
5114                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5115                                 }
5116                                 if (events->sctp_adaptation_layer_event) {
5117                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5118                                 } else {
5119                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5120                                 }
5121                                 if (events->sctp_authentication_event) {
5122                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5123                                 } else {
5124                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5125                                 }
5126                                 if (events->sctp_sender_dry_event) {
5127                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5128                                 } else {
5129                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5130                                 }
5131                                 if (events->sctp_stream_reset_event) {
5132                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5133                                 } else {
5134                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5135                                 }
5136                                 SCTP_TCB_UNLOCK(stcb);
5137                         }
5138                         /*
5139                          * Send up the sender dry event only for 1-to-1
5140                          * style sockets.
5141                          */
5142                         if (events->sctp_sender_dry_event) {
5143                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5144                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5145                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5146                                         if (stcb) {
5147                                                 SCTP_TCB_LOCK(stcb);
5148                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5149                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5150                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5151                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5152                                                 }
5153                                                 SCTP_TCB_UNLOCK(stcb);
5154                                         }
5155                                 }
5156                         }
5157                         SCTP_INP_RUNLOCK(inp);
5158                         break;
5159                 }
5160         case SCTP_ADAPTATION_LAYER:
5161                 {
5162                         struct sctp_setadaptation *adap_bits;
5163
5164                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5165                         SCTP_INP_WLOCK(inp);
5166                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5167                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5168                         SCTP_INP_WUNLOCK(inp);
5169                         break;
5170                 }
5171 #ifdef SCTP_DEBUG
5172         case SCTP_SET_INITIAL_DBG_SEQ:
5173                 {
5174                         uint32_t *vvv;
5175
5176                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5177                         SCTP_INP_WLOCK(inp);
5178                         inp->sctp_ep.initial_sequence_debug = *vvv;
5179                         SCTP_INP_WUNLOCK(inp);
5180                         break;
5181                 }
5182 #endif
5183         case SCTP_DEFAULT_SEND_PARAM:
5184                 {
5185                         struct sctp_sndrcvinfo *s_info;
5186
5187                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5188                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5189
5190                         if (stcb) {
5191                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5192                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5193                                 } else {
5194                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5195                                         error = EINVAL;
5196                                 }
5197                                 SCTP_TCB_UNLOCK(stcb);
5198                         } else {
5199                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5200                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5201                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5202                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5203                                         SCTP_INP_WLOCK(inp);
5204                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5205                                         SCTP_INP_WUNLOCK(inp);
5206                                 }
5207                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5208                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5209                                         SCTP_INP_RLOCK(inp);
5210                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5211                                                 SCTP_TCB_LOCK(stcb);
5212                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5213                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5214                                                 }
5215                                                 SCTP_TCB_UNLOCK(stcb);
5216                                         }
5217                                         SCTP_INP_RUNLOCK(inp);
5218                                 }
5219                         }
5220                         break;
5221                 }
5222         case SCTP_PEER_ADDR_PARAMS:
5223                 {
5224                         struct sctp_paddrparams *paddrp;
5225                         struct sctp_nets *net;
5226                         struct sockaddr *addr;
5227 #if defined(INET) && defined(INET6)
5228                         struct sockaddr_in sin_store;
5229 #endif
5230
5231                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5232                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5233
5234 #if defined(INET) && defined(INET6)
5235                         if (paddrp->spp_address.ss_family == AF_INET6) {
5236                                 struct sockaddr_in6 *sin6;
5237
5238                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5239                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5240                                         in6_sin6_2_sin(&sin_store, sin6);
5241                                         addr = (struct sockaddr *)&sin_store;
5242                                 } else {
5243                                         addr = (struct sockaddr *)&paddrp->spp_address;
5244                                 }
5245                         } else {
5246                                 addr = (struct sockaddr *)&paddrp->spp_address;
5247                         }
5248 #else
5249                         addr = (struct sockaddr *)&paddrp->spp_address;
5250 #endif
5251                         if (stcb != NULL) {
5252                                 net = sctp_findnet(stcb, addr);
5253                         } else {
5254                                 /*
5255                                  * We increment here since
5256                                  * sctp_findassociation_ep_addr() wil do a
5257                                  * decrement if it finds the stcb as long as
5258                                  * the locked tcb (last argument) is NOT a
5259                                  * TCB.. aka NULL.
5260                                  */
5261                                 net = NULL;
5262                                 SCTP_INP_INCR_REF(inp);
5263                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5264                                     &net, NULL, NULL);
5265                                 if (stcb == NULL) {
5266                                         SCTP_INP_DECR_REF(inp);
5267                                 }
5268                         }
5269                         if ((stcb != NULL) && (net == NULL)) {
5270 #ifdef INET
5271                                 if (addr->sa_family == AF_INET) {
5272
5273                                         struct sockaddr_in *sin;
5274
5275                                         sin = (struct sockaddr_in *)addr;
5276                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5277                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5278                                                 SCTP_TCB_UNLOCK(stcb);
5279                                                 error = EINVAL;
5280                                                 break;
5281                                         }
5282                                 } else
5283 #endif
5284 #ifdef INET6
5285                                 if (addr->sa_family == AF_INET6) {
5286                                         struct sockaddr_in6 *sin6;
5287
5288                                         sin6 = (struct sockaddr_in6 *)addr;
5289                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5290                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5291                                                 SCTP_TCB_UNLOCK(stcb);
5292                                                 error = EINVAL;
5293                                                 break;
5294                                         }
5295                                 } else
5296 #endif
5297                                 {
5298                                         error = EAFNOSUPPORT;
5299                                         SCTP_TCB_UNLOCK(stcb);
5300                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5301                                         break;
5302                                 }
5303                         }
5304                         /* sanity checks */
5305                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5306                                 if (stcb)
5307                                         SCTP_TCB_UNLOCK(stcb);
5308                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5309                                 return (EINVAL);
5310                         }
5311
5312                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5313                                 if (stcb)
5314                                         SCTP_TCB_UNLOCK(stcb);
5315                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5316                                 return (EINVAL);
5317                         }
5318
5319                         if (stcb != NULL) {
5320                                 /************************TCB SPECIFIC SET ******************/
5321                                 if (net != NULL) {
5322                                         /************************NET SPECIFIC SET ******************/
5323                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5324                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5325                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5326                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5327                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5328                                                 }
5329                                                 net->dest_state |= SCTP_ADDR_NOHB;
5330                                         }
5331                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5332                                                 if (paddrp->spp_hbinterval) {
5333                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5334                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5335                                                         net->heart_beat_delay = 0;
5336                                                 }
5337                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5338                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5339                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5340                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5341                                         }
5342                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5343                                                 /* on demand HB */
5344                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5345                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5346                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5347                                         }
5348                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5349                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5350                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5351                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5352                                                 }
5353                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5354                                                 net->mtu = paddrp->spp_pathmtu;
5355                                                 switch (net->ro._l_addr.sa.sa_family) {
5356 #ifdef INET
5357                                                 case AF_INET:
5358                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5359                                                         break;
5360 #endif
5361 #ifdef INET6
5362                                                 case AF_INET6:
5363                                                         net->mtu += SCTP_MIN_OVERHEAD;
5364                                                         break;
5365 #endif
5366                                                 default:
5367                                                         break;
5368                                                 }
5369                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5370                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5371                                                 }
5372                                         }
5373                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5374                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5375                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5376                                                 }
5377                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5378                                         }
5379                                         if (paddrp->spp_pathmaxrxt) {
5380                                                 if (net->dest_state & SCTP_ADDR_PF) {
5381                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5382                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5383                                                         }
5384                                                 } else {
5385                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5386                                                             (net->error_count > net->pf_threshold)) {
5387                                                                 net->dest_state |= SCTP_ADDR_PF;
5388                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5389                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5390                                                                     stcb->sctp_ep, stcb, net,
5391                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5392                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5393                                                         }
5394                                                 }
5395                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5396                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5397                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5398                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5399                                                         }
5400                                                 } else {
5401                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5402                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5403                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5404                                                         }
5405                                                 }
5406                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5407                                         }
5408                                         if (paddrp->spp_flags & SPP_DSCP) {
5409                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5410                                                 net->dscp |= 0x01;
5411                                         }
5412 #ifdef INET6
5413                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5414                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5415                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5416                                                         net->flowlabel |= 0x80000000;
5417                                                 }
5418                                         }
5419 #endif
5420                                 } else {
5421                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5422                                         if (paddrp->spp_pathmaxrxt != 0) {
5423                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5424                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5425                                                         if (net->dest_state & SCTP_ADDR_PF) {
5426                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5427                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5428                                                                 }
5429                                                         } else {
5430                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5431                                                                     (net->error_count > net->pf_threshold)) {
5432                                                                         net->dest_state |= SCTP_ADDR_PF;
5433                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5434                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5435                                                                             stcb->sctp_ep, stcb, net,
5436                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5437                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5438                                                                 }
5439                                                         }
5440                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5441                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5442                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5443                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5444                                                                 }
5445                                                         } else {
5446                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5447                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5448                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5449                                                                 }
5450                                                         }
5451                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5452                                                 }
5453                                         }
5454
5455                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5456                                                 if (paddrp->spp_hbinterval != 0) {
5457                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5458                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5459                                                         stcb->asoc.heart_beat_delay = 0;
5460                                                 }
5461                                                 /* Turn back on the timer */
5462                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5463                                                         if (paddrp->spp_hbinterval != 0) {
5464                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5465                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5466                                                                 net->heart_beat_delay = 0;
5467                                                         }
5468                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5469                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5470                                                         }
5471                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5472                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5473                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5474                                                 }
5475                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5476                                         }
5477                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5478                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5479                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5480                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5481                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5482                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5483                                                                             inp, stcb, net,
5484                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5485                                                                 }
5486                                                         }
5487                                                 }
5488                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5489                                         }
5490                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5491                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5492                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5493                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5494                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5495                                                         }
5496                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5497                                                         net->mtu = paddrp->spp_pathmtu;
5498                                                         switch (net->ro._l_addr.sa.sa_family) {
5499 #ifdef INET
5500                                                         case AF_INET:
5501                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5502                                                                 break;
5503 #endif
5504 #ifdef INET6
5505                                                         case AF_INET6:
5506                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5507                                                                 break;
5508 #endif
5509                                                         default:
5510                                                                 break;
5511                                                         }
5512                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5513                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5514                                                         }
5515                                                 }
5516                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5517                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5518                                         }
5519                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5520                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5521                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5522                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5523                                                         }
5524                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5525                                                 }
5526                                                 stcb->asoc.default_mtu = 0;
5527                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5528                                         }
5529                                         if (paddrp->spp_flags & SPP_DSCP) {
5530                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5531                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5532                                                         net->dscp |= 0x01;
5533                                                 }
5534                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5535                                                 stcb->asoc.default_dscp |= 0x01;
5536                                         }
5537 #ifdef INET6
5538                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5539                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5540                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5541                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5542                                                                 net->flowlabel |= 0x80000000;
5543                                                         }
5544                                                 }
5545                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5546                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5547                                         }
5548 #endif
5549                                 }
5550                                 SCTP_TCB_UNLOCK(stcb);
5551                         } else {
5552                                 /************************NO TCB, SET TO default stuff ******************/
5553                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5554                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5555                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5556                                         SCTP_INP_WLOCK(inp);
5557                                         /*
5558                                          * For the TOS/FLOWLABEL stuff you
5559                                          * set it with the options on the
5560                                          * socket
5561                                          */
5562                                         if (paddrp->spp_pathmaxrxt != 0) {
5563                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5564                                         }
5565
5566                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5567                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5568                                         else if (paddrp->spp_hbinterval != 0) {
5569                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5570                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5571                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5572                                         }
5573
5574                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5575                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5576                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5577                                                 } else if (paddrp->spp_hbinterval) {
5578                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5579                                                 }
5580                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5581                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5582                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5583                                         }
5584                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5585                                                 inp->sctp_ep.default_mtu = 0;
5586                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5587                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5588                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
5589                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5590                                                 }
5591                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5592                                         }
5593                                         if (paddrp->spp_flags & SPP_DSCP) {
5594                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5595                                                 inp->sctp_ep.default_dscp |= 0x01;
5596                                         }
5597 #ifdef INET6
5598                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5599                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5600                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5601                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5602                                                 }
5603                                         }
5604 #endif
5605                                         SCTP_INP_WUNLOCK(inp);
5606                                 } else {
5607                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5608                                         error = EINVAL;
5609                                 }
5610                         }
5611                         break;
5612                 }
5613         case SCTP_RTOINFO:
5614                 {
5615                         struct sctp_rtoinfo *srto;
5616                         uint32_t new_init, new_min, new_max;
5617
5618                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5619                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5620
5621                         if (stcb) {
5622                                 if (srto->srto_initial)
5623                                         new_init = srto->srto_initial;
5624                                 else
5625                                         new_init = stcb->asoc.initial_rto;
5626                                 if (srto->srto_max)
5627                                         new_max = srto->srto_max;
5628                                 else
5629                                         new_max = stcb->asoc.maxrto;
5630                                 if (srto->srto_min)
5631                                         new_min = srto->srto_min;
5632                                 else
5633                                         new_min = stcb->asoc.minrto;
5634                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5635                                         stcb->asoc.initial_rto = new_init;
5636                                         stcb->asoc.maxrto = new_max;
5637                                         stcb->asoc.minrto = new_min;
5638                                 } else {
5639                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5640                                         error = EINVAL;
5641                                 }
5642                                 SCTP_TCB_UNLOCK(stcb);
5643                         } else {
5644                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5645                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5646                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5647                                         SCTP_INP_WLOCK(inp);
5648                                         if (srto->srto_initial)
5649                                                 new_init = srto->srto_initial;
5650                                         else
5651                                                 new_init = inp->sctp_ep.initial_rto;
5652                                         if (srto->srto_max)
5653                                                 new_max = srto->srto_max;
5654                                         else
5655                                                 new_max = inp->sctp_ep.sctp_maxrto;
5656                                         if (srto->srto_min)
5657                                                 new_min = srto->srto_min;
5658                                         else
5659                                                 new_min = inp->sctp_ep.sctp_minrto;
5660                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5661                                                 inp->sctp_ep.initial_rto = new_init;
5662                                                 inp->sctp_ep.sctp_maxrto = new_max;
5663                                                 inp->sctp_ep.sctp_minrto = new_min;
5664                                         } else {
5665                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5666                                                 error = EINVAL;
5667                                         }
5668                                         SCTP_INP_WUNLOCK(inp);
5669                                 } else {
5670                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5671                                         error = EINVAL;
5672                                 }
5673                         }
5674                         break;
5675                 }
5676         case SCTP_ASSOCINFO:
5677                 {
5678                         struct sctp_assocparams *sasoc;
5679
5680                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5681                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5682                         if (sasoc->sasoc_cookie_life) {
5683                                 /* boundary check the cookie life */
5684                                 if (sasoc->sasoc_cookie_life < 1000)
5685                                         sasoc->sasoc_cookie_life = 1000;
5686                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5687                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5688                                 }
5689                         }
5690                         if (stcb) {
5691                                 if (sasoc->sasoc_asocmaxrxt)
5692                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5693                                 if (sasoc->sasoc_cookie_life) {
5694                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5695                                 }
5696                                 SCTP_TCB_UNLOCK(stcb);
5697                         } else {
5698                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5699                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5700                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5701                                         SCTP_INP_WLOCK(inp);
5702                                         if (sasoc->sasoc_asocmaxrxt)
5703                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5704                                         if (sasoc->sasoc_cookie_life) {
5705                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5706                                         }
5707                                         SCTP_INP_WUNLOCK(inp);
5708                                 } else {
5709                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5710                                         error = EINVAL;
5711                                 }
5712                         }
5713                         break;
5714                 }
5715         case SCTP_INITMSG:
5716                 {
5717                         struct sctp_initmsg *sinit;
5718
5719                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5720                         SCTP_INP_WLOCK(inp);
5721                         if (sinit->sinit_num_ostreams)
5722                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5723
5724                         if (sinit->sinit_max_instreams)
5725                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5726
5727                         if (sinit->sinit_max_attempts)
5728                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5729
5730                         if (sinit->sinit_max_init_timeo)
5731                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5732                         SCTP_INP_WUNLOCK(inp);
5733                         break;
5734                 }
5735         case SCTP_PRIMARY_ADDR:
5736                 {
5737                         struct sctp_setprim *spa;
5738                         struct sctp_nets *net;
5739                         struct sockaddr *addr;
5740 #if defined(INET) && defined(INET6)
5741                         struct sockaddr_in sin_store;
5742 #endif
5743
5744                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5745                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5746
5747 #if defined(INET) && defined(INET6)
5748                         if (spa->ssp_addr.ss_family == AF_INET6) {
5749                                 struct sockaddr_in6 *sin6;
5750
5751                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5752                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5753                                         in6_sin6_2_sin(&sin_store, sin6);
5754                                         addr = (struct sockaddr *)&sin_store;
5755                                 } else {
5756                                         addr = (struct sockaddr *)&spa->ssp_addr;
5757                                 }
5758                         } else {
5759                                 addr = (struct sockaddr *)&spa->ssp_addr;
5760                         }
5761 #else
5762                         addr = (struct sockaddr *)&spa->ssp_addr;
5763 #endif
5764                         if (stcb != NULL) {
5765                                 net = sctp_findnet(stcb, addr);
5766                         } else {
5767                                 /*
5768                                  * We increment here since
5769                                  * sctp_findassociation_ep_addr() wil do a
5770                                  * decrement if it finds the stcb as long as
5771                                  * the locked tcb (last argument) is NOT a
5772                                  * TCB.. aka NULL.
5773                                  */
5774                                 net = NULL;
5775                                 SCTP_INP_INCR_REF(inp);
5776                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5777                                     &net, NULL, NULL);
5778                                 if (stcb == NULL) {
5779                                         SCTP_INP_DECR_REF(inp);
5780                                 }
5781                         }
5782
5783                         if ((stcb != NULL) && (net != NULL)) {
5784                                 if (net != stcb->asoc.primary_destination) {
5785                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5786                                                 /* Ok we need to set it */
5787                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5788                                                         if ((stcb->asoc.alternate) &&
5789                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5790                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5791                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5792                                                                 stcb->asoc.alternate = NULL;
5793                                                         }
5794                                                 } else {
5795                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5796                                                         error = EINVAL;
5797                                                 }
5798                                         } else {
5799                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5800                                                 error = EINVAL;
5801                                         }
5802                                 }
5803                         } else {
5804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5805                                 error = EINVAL;
5806                         }
5807                         if (stcb != NULL) {
5808                                 SCTP_TCB_UNLOCK(stcb);
5809                         }
5810                         break;
5811                 }
5812         case SCTP_SET_DYNAMIC_PRIMARY:
5813                 {
5814                         union sctp_sockstore *ss;
5815
5816                         error = priv_check(curthread,
5817                             PRIV_NETINET_RESERVEDPORT);
5818                         if (error)
5819                                 break;
5820
5821                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5822                         /* SUPER USER CHECK? */
5823                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5824                         break;
5825                 }
5826         case SCTP_SET_PEER_PRIMARY_ADDR:
5827                 {
5828                         struct sctp_setpeerprim *sspp;
5829                         struct sockaddr *addr;
5830 #if defined(INET) && defined(INET6)
5831                         struct sockaddr_in sin_store;
5832 #endif
5833
5834                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5835                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5836                         if (stcb != NULL) {
5837                                 struct sctp_ifa *ifa;
5838
5839 #if defined(INET) && defined(INET6)
5840                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5841                                         struct sockaddr_in6 *sin6;
5842
5843                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5844                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5845                                                 in6_sin6_2_sin(&sin_store, sin6);
5846                                                 addr = (struct sockaddr *)&sin_store;
5847                                         } else {
5848                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5849                                         }
5850                                 } else {
5851                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5852                                 }
5853 #else
5854                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5855 #endif
5856                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5857                                 if (ifa == NULL) {
5858                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5859                                         error = EINVAL;
5860                                         goto out_of_it;
5861                                 }
5862                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5863                                         /*
5864                                          * Must validate the ifa found is in
5865                                          * our ep
5866                                          */
5867                                         struct sctp_laddr *laddr;
5868                                         int found = 0;
5869
5870                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5871                                                 if (laddr->ifa == NULL) {
5872                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5873                                                             __func__);
5874                                                         continue;
5875                                                 }
5876                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5877                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5878                                                         continue;
5879                                                 }
5880                                                 if (laddr->ifa == ifa) {
5881                                                         found = 1;
5882                                                         break;
5883                                                 }
5884                                         }
5885                                         if (!found) {
5886                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5887                                                 error = EINVAL;
5888                                                 goto out_of_it;
5889                                         }
5890                                 } else {
5891                                         switch (addr->sa_family) {
5892 #ifdef INET
5893                                         case AF_INET:
5894                                                 {
5895                                                         struct sockaddr_in *sin;
5896
5897                                                         sin = (struct sockaddr_in *)addr;
5898                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5899                                                             &sin->sin_addr) != 0) {
5900                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5901                                                                 error = EINVAL;
5902                                                                 goto out_of_it;
5903                                                         }
5904                                                         break;
5905                                                 }
5906 #endif
5907 #ifdef INET6
5908                                         case AF_INET6:
5909                                                 {
5910                                                         struct sockaddr_in6 *sin6;
5911
5912                                                         sin6 = (struct sockaddr_in6 *)addr;
5913                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5914                                                             &sin6->sin6_addr) != 0) {
5915                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5916                                                                 error = EINVAL;
5917                                                                 goto out_of_it;
5918                                                         }
5919                                                         break;
5920                                                 }
5921 #endif
5922                                         default:
5923                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5924                                                 error = EINVAL;
5925                                                 goto out_of_it;
5926                                         }
5927                                 }
5928                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5929                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5930                                         error = EINVAL;
5931                                 }
5932                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5933                 out_of_it:
5934                                 SCTP_TCB_UNLOCK(stcb);
5935                         } else {
5936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5937                                 error = EINVAL;
5938                         }
5939                         break;
5940                 }
5941         case SCTP_BINDX_ADD_ADDR:
5942                 {
5943                         struct sctp_getaddresses *addrs;
5944                         struct thread *td;
5945
5946                         td = (struct thread *)p;
5947                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5948                             optsize);
5949 #ifdef INET
5950                         if (addrs->addr->sa_family == AF_INET) {
5951                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5952                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5953                                         error = EINVAL;
5954                                         break;
5955                                 }
5956                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5957                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5958                                         break;
5959                                 }
5960                         } else
5961 #endif
5962 #ifdef INET6
5963                         if (addrs->addr->sa_family == AF_INET6) {
5964                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5966                                         error = EINVAL;
5967                                         break;
5968                                 }
5969                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5970                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5971                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5972                                         break;
5973                                 }
5974                         } else
5975 #endif
5976                         {
5977                                 error = EAFNOSUPPORT;
5978                                 break;
5979                         }
5980                         sctp_bindx_add_address(so, inp, addrs->addr,
5981                             addrs->sget_assoc_id, vrf_id,
5982                             &error, p);
5983                         break;
5984                 }
5985         case SCTP_BINDX_REM_ADDR:
5986                 {
5987                         struct sctp_getaddresses *addrs;
5988                         struct thread *td;
5989
5990                         td = (struct thread *)p;
5991
5992                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5993 #ifdef INET
5994                         if (addrs->addr->sa_family == AF_INET) {
5995                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5997                                         error = EINVAL;
5998                                         break;
5999                                 }
6000                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
6001                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6002                                         break;
6003                                 }
6004                         } else
6005 #endif
6006 #ifdef INET6
6007                         if (addrs->addr->sa_family == AF_INET6) {
6008                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6009                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6010                                         error = EINVAL;
6011                                         break;
6012                                 }
6013                                 if (td != NULL &&
6014                                     (error = prison_local_ip6(td->td_ucred,
6015                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6016                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6017                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6018                                         break;
6019                                 }
6020                         } else
6021 #endif
6022                         {
6023                                 error = EAFNOSUPPORT;
6024                                 break;
6025                         }
6026                         sctp_bindx_delete_address(inp, addrs->addr,
6027                             addrs->sget_assoc_id, vrf_id,
6028                             &error);
6029                         break;
6030                 }
6031         case SCTP_EVENT:
6032                 {
6033                         struct sctp_event *event;
6034                         uint32_t event_type;
6035
6036                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6037                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6038                         switch (event->se_type) {
6039                         case SCTP_ASSOC_CHANGE:
6040                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6041                                 break;
6042                         case SCTP_PEER_ADDR_CHANGE:
6043                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6044                                 break;
6045                         case SCTP_REMOTE_ERROR:
6046                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6047                                 break;
6048                         case SCTP_SEND_FAILED:
6049                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6050                                 break;
6051                         case SCTP_SHUTDOWN_EVENT:
6052                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6053                                 break;
6054                         case SCTP_ADAPTATION_INDICATION:
6055                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6056                                 break;
6057                         case SCTP_PARTIAL_DELIVERY_EVENT:
6058                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6059                                 break;
6060                         case SCTP_AUTHENTICATION_EVENT:
6061                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6062                                 break;
6063                         case SCTP_STREAM_RESET_EVENT:
6064                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6065                                 break;
6066                         case SCTP_SENDER_DRY_EVENT:
6067                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6068                                 break;
6069                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6070                                 event_type = 0;
6071                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6072                                 error = ENOTSUP;
6073                                 break;
6074                         case SCTP_ASSOC_RESET_EVENT:
6075                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6076                                 break;
6077                         case SCTP_STREAM_CHANGE_EVENT:
6078                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6079                                 break;
6080                         case SCTP_SEND_FAILED_EVENT:
6081                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6082                                 break;
6083                         default:
6084                                 event_type = 0;
6085                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6086                                 error = EINVAL;
6087                                 break;
6088                         }
6089                         if (event_type > 0) {
6090                                 if (stcb) {
6091                                         if (event->se_on) {
6092                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6093                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6094                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6095                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6096                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6097                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6098                                                         }
6099                                                 }
6100                                         } else {
6101                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6102                                         }
6103                                         SCTP_TCB_UNLOCK(stcb);
6104                                 } else {
6105                                         /*
6106                                          * We don't want to send up a storm
6107                                          * of events, so return an error for
6108                                          * sender dry events
6109                                          */
6110                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6111                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6112                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6113                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6114                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6115                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6116                                                 error = ENOTSUP;
6117                                                 break;
6118                                         }
6119                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6120                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6121                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6122                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6123                                                 SCTP_INP_WLOCK(inp);
6124                                                 if (event->se_on) {
6125                                                         sctp_feature_on(inp, event_type);
6126                                                 } else {
6127                                                         sctp_feature_off(inp, event_type);
6128                                                 }
6129                                                 SCTP_INP_WUNLOCK(inp);
6130                                         }
6131                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6132                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6133                                                 SCTP_INP_RLOCK(inp);
6134                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6135                                                         SCTP_TCB_LOCK(stcb);
6136                                                         if (event->se_on) {
6137                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6138                                                         } else {
6139                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6140                                                         }
6141                                                         SCTP_TCB_UNLOCK(stcb);
6142                                                 }
6143                                                 SCTP_INP_RUNLOCK(inp);
6144                                         }
6145                                 }
6146                         } else {
6147                                 if (stcb) {
6148                                         SCTP_TCB_UNLOCK(stcb);
6149                                 }
6150                         }
6151                         break;
6152                 }
6153         case SCTP_RECVRCVINFO:
6154                 {
6155                         int *onoff;
6156
6157                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6158                         SCTP_INP_WLOCK(inp);
6159                         if (*onoff != 0) {
6160                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6161                         } else {
6162                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6163                         }
6164                         SCTP_INP_WUNLOCK(inp);
6165                         break;
6166                 }
6167         case SCTP_RECVNXTINFO:
6168                 {
6169                         int *onoff;
6170
6171                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6172                         SCTP_INP_WLOCK(inp);
6173                         if (*onoff != 0) {
6174                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6175                         } else {
6176                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6177                         }
6178                         SCTP_INP_WUNLOCK(inp);
6179                         break;
6180                 }
6181         case SCTP_DEFAULT_SNDINFO:
6182                 {
6183                         struct sctp_sndinfo *info;
6184                         uint16_t policy;
6185
6186                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6187                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6188
6189                         if (stcb) {
6190                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6191                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6192                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6193                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6194                                         stcb->asoc.def_send.sinfo_flags |= policy;
6195                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6196                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6197                                 } else {
6198                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6199                                         error = EINVAL;
6200                                 }
6201                                 SCTP_TCB_UNLOCK(stcb);
6202                         } else {
6203                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6204                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6205                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6206                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6207                                         SCTP_INP_WLOCK(inp);
6208                                         inp->def_send.sinfo_stream = info->snd_sid;
6209                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6210                                         inp->def_send.sinfo_flags = info->snd_flags;
6211                                         inp->def_send.sinfo_flags |= policy;
6212                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6213                                         inp->def_send.sinfo_context = info->snd_context;
6214                                         SCTP_INP_WUNLOCK(inp);
6215                                 }
6216                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6217                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6218                                         SCTP_INP_RLOCK(inp);
6219                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6220                                                 SCTP_TCB_LOCK(stcb);
6221                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6222                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6223                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6224                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6225                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6226                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6227                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6228                                                 }
6229                                                 SCTP_TCB_UNLOCK(stcb);
6230                                         }
6231                                         SCTP_INP_RUNLOCK(inp);
6232                                 }
6233                         }
6234                         break;
6235                 }
6236         case SCTP_DEFAULT_PRINFO:
6237                 {
6238                         struct sctp_default_prinfo *info;
6239
6240                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6241                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6242
6243                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6244                                 if (stcb) {
6245                                         SCTP_TCB_UNLOCK(stcb);
6246                                 }
6247                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6248                                 error = EINVAL;
6249                                 break;
6250                         }
6251                         if (stcb) {
6252                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6253                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6254                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6255                                 SCTP_TCB_UNLOCK(stcb);
6256                         } else {
6257                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6258                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6259                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6260                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6261                                         SCTP_INP_WLOCK(inp);
6262                                         inp->def_send.sinfo_flags &= 0xfff0;
6263                                         inp->def_send.sinfo_flags |= info->pr_policy;
6264                                         inp->def_send.sinfo_timetolive = info->pr_value;
6265                                         SCTP_INP_WUNLOCK(inp);
6266                                 }
6267                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6268                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6269                                         SCTP_INP_RLOCK(inp);
6270                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6271                                                 SCTP_TCB_LOCK(stcb);
6272                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6273                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6274                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6275                                                 SCTP_TCB_UNLOCK(stcb);
6276                                         }
6277                                         SCTP_INP_RUNLOCK(inp);
6278                                 }
6279                         }
6280                         break;
6281                 }
6282         case SCTP_PEER_ADDR_THLDS:
6283                 /* Applies to the specific association */
6284                 {
6285                         struct sctp_paddrthlds *thlds;
6286                         struct sctp_nets *net;
6287                         struct sockaddr *addr;
6288 #if defined(INET) && defined(INET6)
6289                         struct sockaddr_in sin_store;
6290 #endif
6291
6292                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6293                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6294
6295 #if defined(INET) && defined(INET6)
6296                         if (thlds->spt_address.ss_family == AF_INET6) {
6297                                 struct sockaddr_in6 *sin6;
6298
6299                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6300                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6301                                         in6_sin6_2_sin(&sin_store, sin6);
6302                                         addr = (struct sockaddr *)&sin_store;
6303                                 } else {
6304                                         addr = (struct sockaddr *)&thlds->spt_address;
6305                                 }
6306                         } else {
6307                                 addr = (struct sockaddr *)&thlds->spt_address;
6308                         }
6309 #else
6310                         addr = (struct sockaddr *)&thlds->spt_address;
6311 #endif
6312                         if (stcb != NULL) {
6313                                 net = sctp_findnet(stcb, addr);
6314                         } else {
6315                                 /*
6316                                  * We increment here since
6317                                  * sctp_findassociation_ep_addr() wil do a
6318                                  * decrement if it finds the stcb as long as
6319                                  * the locked tcb (last argument) is NOT a
6320                                  * TCB.. aka NULL.
6321                                  */
6322                                 net = NULL;
6323                                 SCTP_INP_INCR_REF(inp);
6324                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6325                                     &net, NULL, NULL);
6326                                 if (stcb == NULL) {
6327                                         SCTP_INP_DECR_REF(inp);
6328                                 }
6329                         }
6330                         if ((stcb != NULL) && (net == NULL)) {
6331 #ifdef INET
6332                                 if (addr->sa_family == AF_INET) {
6333
6334                                         struct sockaddr_in *sin;
6335
6336                                         sin = (struct sockaddr_in *)addr;
6337                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6338                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6339                                                 SCTP_TCB_UNLOCK(stcb);
6340                                                 error = EINVAL;
6341                                                 break;
6342                                         }
6343                                 } else
6344 #endif
6345 #ifdef INET6
6346                                 if (addr->sa_family == AF_INET6) {
6347                                         struct sockaddr_in6 *sin6;
6348
6349                                         sin6 = (struct sockaddr_in6 *)addr;
6350                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6351                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6352                                                 SCTP_TCB_UNLOCK(stcb);
6353                                                 error = EINVAL;
6354                                                 break;
6355                                         }
6356                                 } else
6357 #endif
6358                                 {
6359                                         error = EAFNOSUPPORT;
6360                                         SCTP_TCB_UNLOCK(stcb);
6361                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6362                                         break;
6363                                 }
6364                         }
6365                         if (thlds->spt_pathcpthld != 0xffff) {
6366                                 if (stcb != NULL) {
6367                                         SCTP_TCB_UNLOCK(stcb);
6368                                 }
6369                                 error = EINVAL;
6370                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6371                                 break;
6372                         }
6373                         if (stcb != NULL) {
6374                                 if (net != NULL) {
6375                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6376                                         net->pf_threshold = thlds->spt_pathpfthld;
6377                                         if (net->dest_state & SCTP_ADDR_PF) {
6378                                                 if ((net->error_count > net->failure_threshold) ||
6379                                                     (net->error_count <= net->pf_threshold)) {
6380                                                         net->dest_state &= ~SCTP_ADDR_PF;
6381                                                 }
6382                                         } else {
6383                                                 if ((net->error_count > net->pf_threshold) &&
6384                                                     (net->error_count <= net->failure_threshold)) {
6385                                                         net->dest_state |= SCTP_ADDR_PF;
6386                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6387                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6388                                                             stcb->sctp_ep, stcb, net,
6389                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6390                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6391                                                 }
6392                                         }
6393                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6394                                                 if (net->error_count > net->failure_threshold) {
6395                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6396                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6397                                                 }
6398                                         } else {
6399                                                 if (net->error_count <= net->failure_threshold) {
6400                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6401                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6402                                                 }
6403                                         }
6404                                 } else {
6405                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6406                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6407                                                 net->pf_threshold = thlds->spt_pathpfthld;
6408                                                 if (net->dest_state & SCTP_ADDR_PF) {
6409                                                         if ((net->error_count > net->failure_threshold) ||
6410                                                             (net->error_count <= net->pf_threshold)) {
6411                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6412                                                         }
6413                                                 } else {
6414                                                         if ((net->error_count > net->pf_threshold) &&
6415                                                             (net->error_count <= net->failure_threshold)) {
6416                                                                 net->dest_state |= SCTP_ADDR_PF;
6417                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6418                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6419                                                                     stcb->sctp_ep, stcb, net,
6420                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6421                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6422                                                         }
6423                                                 }
6424                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6425                                                         if (net->error_count > net->failure_threshold) {
6426                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6427                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6428                                                         }
6429                                                 } else {
6430                                                         if (net->error_count <= net->failure_threshold) {
6431                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6432                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6433                                                         }
6434                                                 }
6435                                         }
6436                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6437                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6438                                 }
6439                                 SCTP_TCB_UNLOCK(stcb);
6440                         } else {
6441                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6442                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6443                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6444                                         SCTP_INP_WLOCK(inp);
6445                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6446                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6447                                         SCTP_INP_WUNLOCK(inp);
6448                                 } else {
6449                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6450                                         error = EINVAL;
6451                                 }
6452                         }
6453                         break;
6454                 }
6455         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6456                 {
6457                         struct sctp_udpencaps *encaps;
6458                         struct sctp_nets *net;
6459                         struct sockaddr *addr;
6460 #if defined(INET) && defined(INET6)
6461                         struct sockaddr_in sin_store;
6462 #endif
6463
6464                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6465                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6466
6467 #if defined(INET) && defined(INET6)
6468                         if (encaps->sue_address.ss_family == AF_INET6) {
6469                                 struct sockaddr_in6 *sin6;
6470
6471                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6472                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6473                                         in6_sin6_2_sin(&sin_store, sin6);
6474                                         addr = (struct sockaddr *)&sin_store;
6475                                 } else {
6476                                         addr = (struct sockaddr *)&encaps->sue_address;
6477                                 }
6478                         } else {
6479                                 addr = (struct sockaddr *)&encaps->sue_address;
6480                         }
6481 #else
6482                         addr = (struct sockaddr *)&encaps->sue_address;
6483 #endif
6484                         if (stcb != NULL) {
6485                                 net = sctp_findnet(stcb, addr);
6486                         } else {
6487                                 /*
6488                                  * We increment here since
6489                                  * sctp_findassociation_ep_addr() wil do a
6490                                  * decrement if it finds the stcb as long as
6491                                  * the locked tcb (last argument) is NOT a
6492                                  * TCB.. aka NULL.
6493                                  */
6494                                 net = NULL;
6495                                 SCTP_INP_INCR_REF(inp);
6496                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6497                                 if (stcb == NULL) {
6498                                         SCTP_INP_DECR_REF(inp);
6499                                 }
6500                         }
6501                         if ((stcb != NULL) && (net == NULL)) {
6502 #ifdef INET
6503                                 if (addr->sa_family == AF_INET) {
6504
6505                                         struct sockaddr_in *sin;
6506
6507                                         sin = (struct sockaddr_in *)addr;
6508                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6509                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6510                                                 SCTP_TCB_UNLOCK(stcb);
6511                                                 error = EINVAL;
6512                                                 break;
6513                                         }
6514                                 } else
6515 #endif
6516 #ifdef INET6
6517                                 if (addr->sa_family == AF_INET6) {
6518                                         struct sockaddr_in6 *sin6;
6519
6520                                         sin6 = (struct sockaddr_in6 *)addr;
6521                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6522                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6523                                                 SCTP_TCB_UNLOCK(stcb);
6524                                                 error = EINVAL;
6525                                                 break;
6526                                         }
6527                                 } else
6528 #endif
6529                                 {
6530                                         error = EAFNOSUPPORT;
6531                                         SCTP_TCB_UNLOCK(stcb);
6532                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6533                                         break;
6534                                 }
6535                         }
6536
6537                         if (stcb != NULL) {
6538                                 if (net != NULL) {
6539                                         net->port = encaps->sue_port;
6540                                 } else {
6541                                         stcb->asoc.port = encaps->sue_port;
6542                                 }
6543                                 SCTP_TCB_UNLOCK(stcb);
6544                         } else {
6545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6547                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6548                                         SCTP_INP_WLOCK(inp);
6549                                         inp->sctp_ep.port = encaps->sue_port;
6550                                         SCTP_INP_WUNLOCK(inp);
6551                                 } else {
6552                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6553                                         error = EINVAL;
6554                                 }
6555                         }
6556                         break;
6557                 }
6558         case SCTP_ECN_SUPPORTED:
6559                 {
6560                         struct sctp_assoc_value *av;
6561
6562                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6563                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6564
6565                         if (stcb) {
6566                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6567                                 error = EINVAL;
6568                                 SCTP_TCB_UNLOCK(stcb);
6569                         } else {
6570                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6571                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6572                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6573                                         SCTP_INP_WLOCK(inp);
6574                                         if (av->assoc_value == 0) {
6575                                                 inp->ecn_supported = 0;
6576                                         } else {
6577                                                 inp->ecn_supported = 1;
6578                                         }
6579                                         SCTP_INP_WUNLOCK(inp);
6580                                 } else {
6581                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6582                                         error = EINVAL;
6583                                 }
6584                         }
6585                         break;
6586                 }
6587         case SCTP_PR_SUPPORTED:
6588                 {
6589                         struct sctp_assoc_value *av;
6590
6591                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6592                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6593
6594                         if (stcb) {
6595                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6596                                 error = EINVAL;
6597                                 SCTP_TCB_UNLOCK(stcb);
6598                         } else {
6599                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6600                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6601                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6602                                         SCTP_INP_WLOCK(inp);
6603                                         if (av->assoc_value == 0) {
6604                                                 inp->prsctp_supported = 0;
6605                                         } else {
6606                                                 inp->prsctp_supported = 1;
6607                                         }
6608                                         SCTP_INP_WUNLOCK(inp);
6609                                 } else {
6610                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6611                                         error = EINVAL;
6612                                 }
6613                         }
6614                         break;
6615                 }
6616         case SCTP_AUTH_SUPPORTED:
6617                 {
6618                         struct sctp_assoc_value *av;
6619
6620                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6621                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6622
6623                         if (stcb) {
6624                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6625                                 error = EINVAL;
6626                                 SCTP_TCB_UNLOCK(stcb);
6627                         } else {
6628                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6629                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6630                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6631                                         if ((av->assoc_value == 0) &&
6632                                             (inp->asconf_supported == 1)) {
6633                                                 /*
6634                                                  * AUTH is required for
6635                                                  * ASCONF
6636                                                  */
6637                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6638                                                 error = EINVAL;
6639                                         } else {
6640                                                 SCTP_INP_WLOCK(inp);
6641                                                 if (av->assoc_value == 0) {
6642                                                         inp->auth_supported = 0;
6643                                                 } else {
6644                                                         inp->auth_supported = 1;
6645                                                 }
6646                                                 SCTP_INP_WUNLOCK(inp);
6647                                         }
6648                                 } else {
6649                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6650                                         error = EINVAL;
6651                                 }
6652                         }
6653                         break;
6654                 }
6655         case SCTP_ASCONF_SUPPORTED:
6656                 {
6657                         struct sctp_assoc_value *av;
6658
6659                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6660                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6661
6662                         if (stcb) {
6663                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6664                                 error = EINVAL;
6665                                 SCTP_TCB_UNLOCK(stcb);
6666                         } else {
6667                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6668                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6669                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6670                                         if ((av->assoc_value != 0) &&
6671                                             (inp->auth_supported == 0)) {
6672                                                 /*
6673                                                  * AUTH is required for
6674                                                  * ASCONF
6675                                                  */
6676                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6677                                                 error = EINVAL;
6678                                         } else {
6679                                                 SCTP_INP_WLOCK(inp);
6680                                                 if (av->assoc_value == 0) {
6681                                                         inp->asconf_supported = 0;
6682                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6683                                                             inp->sctp_ep.local_auth_chunks);
6684                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6685                                                             inp->sctp_ep.local_auth_chunks);
6686                                                 } else {
6687                                                         inp->asconf_supported = 1;
6688                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6689                                                             inp->sctp_ep.local_auth_chunks);
6690                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6691                                                             inp->sctp_ep.local_auth_chunks);
6692                                                 }
6693                                                 SCTP_INP_WUNLOCK(inp);
6694                                         }
6695                                 } else {
6696                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6697                                         error = EINVAL;
6698                                 }
6699                         }
6700                         break;
6701                 }
6702         case SCTP_RECONFIG_SUPPORTED:
6703                 {
6704                         struct sctp_assoc_value *av;
6705
6706                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6707                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6708
6709                         if (stcb) {
6710                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6711                                 error = EINVAL;
6712                                 SCTP_TCB_UNLOCK(stcb);
6713                         } else {
6714                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6715                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6716                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6717                                         SCTP_INP_WLOCK(inp);
6718                                         if (av->assoc_value == 0) {
6719                                                 inp->reconfig_supported = 0;
6720                                         } else {
6721                                                 inp->reconfig_supported = 1;
6722                                         }
6723                                         SCTP_INP_WUNLOCK(inp);
6724                                 } else {
6725                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6726                                         error = EINVAL;
6727                                 }
6728                         }
6729                         break;
6730                 }
6731         case SCTP_NRSACK_SUPPORTED:
6732                 {
6733                         struct sctp_assoc_value *av;
6734
6735                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6736                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6737
6738                         if (stcb) {
6739                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6740                                 error = EINVAL;
6741                                 SCTP_TCB_UNLOCK(stcb);
6742                         } else {
6743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6746                                         SCTP_INP_WLOCK(inp);
6747                                         if (av->assoc_value == 0) {
6748                                                 inp->nrsack_supported = 0;
6749                                         } else {
6750                                                 inp->nrsack_supported = 1;
6751                                         }
6752                                         SCTP_INP_WUNLOCK(inp);
6753                                 } else {
6754                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6755                                         error = EINVAL;
6756                                 }
6757                         }
6758                         break;
6759                 }
6760         case SCTP_PKTDROP_SUPPORTED:
6761                 {
6762                         struct sctp_assoc_value *av;
6763
6764                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6765                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6766
6767                         if (stcb) {
6768                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6769                                 error = EINVAL;
6770                                 SCTP_TCB_UNLOCK(stcb);
6771                         } else {
6772                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6773                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6774                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6775                                         SCTP_INP_WLOCK(inp);
6776                                         if (av->assoc_value == 0) {
6777                                                 inp->pktdrop_supported = 0;
6778                                         } else {
6779                                                 inp->pktdrop_supported = 1;
6780                                         }
6781                                         SCTP_INP_WUNLOCK(inp);
6782                                 } else {
6783                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6784                                         error = EINVAL;
6785                                 }
6786                         }
6787                         break;
6788                 }
6789         case SCTP_MAX_CWND:
6790                 {
6791                         struct sctp_assoc_value *av;
6792                         struct sctp_nets *net;
6793
6794                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6795                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6796
6797                         if (stcb) {
6798                                 stcb->asoc.max_cwnd = av->assoc_value;
6799                                 if (stcb->asoc.max_cwnd > 0) {
6800                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6801                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6802                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6803                                                         net->cwnd = stcb->asoc.max_cwnd;
6804                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6805                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6806                                                         }
6807                                                 }
6808                                         }
6809                                 }
6810                                 SCTP_TCB_UNLOCK(stcb);
6811                         } else {
6812                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6813                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6814                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6815                                         SCTP_INP_WLOCK(inp);
6816                                         inp->max_cwnd = av->assoc_value;
6817                                         SCTP_INP_WUNLOCK(inp);
6818                                 } else {
6819                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6820                                         error = EINVAL;
6821                                 }
6822                         }
6823                         break;
6824                 }
6825         default:
6826                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6827                 error = ENOPROTOOPT;
6828                 break;
6829         }                       /* end switch (opt) */
6830         return (error);
6831 }
6832
6833 int
6834 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6835 {
6836         void *optval = NULL;
6837         size_t optsize = 0;
6838         void *p;
6839         int error = 0;
6840         struct sctp_inpcb *inp;
6841
6842         if ((sopt->sopt_level == SOL_SOCKET) &&
6843             (sopt->sopt_name == SO_SETFIB)) {
6844                 inp = (struct sctp_inpcb *)so->so_pcb;
6845                 if (inp == NULL) {
6846                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6847                         return (EINVAL);
6848                 }
6849                 SCTP_INP_WLOCK(inp);
6850                 inp->fibnum = so->so_fibnum;
6851                 SCTP_INP_WUNLOCK(inp);
6852                 return (0);
6853         }
6854         if (sopt->sopt_level != IPPROTO_SCTP) {
6855                 /* wrong proto level... send back up to IP */
6856 #ifdef INET6
6857                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6858                         error = ip6_ctloutput(so, sopt);
6859 #endif                          /* INET6 */
6860 #if defined(INET) && defined(INET6)
6861                 else
6862 #endif
6863 #ifdef INET
6864                         error = ip_ctloutput(so, sopt);
6865 #endif
6866                 return (error);
6867         }
6868         optsize = sopt->sopt_valsize;
6869         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6870                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6871                 return (ENOBUFS);
6872         }
6873         if (optsize) {
6874                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6875                 if (optval == NULL) {
6876                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6877                         return (ENOBUFS);
6878                 }
6879                 error = sooptcopyin(sopt, optval, optsize, optsize);
6880                 if (error) {
6881                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6882                         goto out;
6883                 }
6884         }
6885         p = (void *)sopt->sopt_td;
6886         if (sopt->sopt_dir == SOPT_SET) {
6887                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6888         } else if (sopt->sopt_dir == SOPT_GET) {
6889                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6890         } else {
6891                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6892                 error = EINVAL;
6893         }
6894         if ((error == 0) && (optval != NULL)) {
6895                 error = sooptcopyout(sopt, optval, optsize);
6896                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6897         } else if (optval != NULL) {
6898                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6899         }
6900 out:
6901         return (error);
6902 }
6903
6904 #ifdef INET
6905 static int
6906 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6907 {
6908         int error = 0;
6909         int create_lock_on = 0;
6910         uint32_t vrf_id;
6911         struct sctp_inpcb *inp;
6912         struct sctp_tcb *stcb = NULL;
6913
6914         inp = (struct sctp_inpcb *)so->so_pcb;
6915         if (inp == NULL) {
6916                 /* I made the same as TCP since we are not setup? */
6917                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6918                 return (ECONNRESET);
6919         }
6920         if (addr == NULL) {
6921                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6922                 return EINVAL;
6923         }
6924
6925         switch (addr->sa_family) {
6926 #ifdef INET6
6927         case AF_INET6:
6928                 {
6929                         struct sockaddr_in6 *sin6p;
6930
6931                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6932                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6933                                 return (EINVAL);
6934                         }
6935                         sin6p = (struct sockaddr_in6 *)addr;
6936                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6937                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6938                                 return (error);
6939                         }
6940                         break;
6941                 }
6942 #endif
6943 #ifdef INET
6944         case AF_INET:
6945                 {
6946                         struct sockaddr_in *sinp;
6947
6948                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6949                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6950                                 return (EINVAL);
6951                         }
6952                         sinp = (struct sockaddr_in *)addr;
6953                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6954                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6955                                 return (error);
6956                         }
6957                         break;
6958                 }
6959 #endif
6960         default:
6961                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6962                 return (EAFNOSUPPORT);
6963         }
6964         SCTP_INP_INCR_REF(inp);
6965         SCTP_ASOC_CREATE_LOCK(inp);
6966         create_lock_on = 1;
6967
6968
6969         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6970             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6971                 /* Should I really unlock ? */
6972                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6973                 error = EFAULT;
6974                 goto out_now;
6975         }
6976 #ifdef INET6
6977         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6978             (addr->sa_family == AF_INET6)) {
6979                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6980                 error = EINVAL;
6981                 goto out_now;
6982         }
6983 #endif
6984         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6985             SCTP_PCB_FLAGS_UNBOUND) {
6986                 /* Bind a ephemeral port */
6987                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6988                 if (error) {
6989                         goto out_now;
6990                 }
6991         }
6992         /* Now do we connect? */
6993         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6994             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6995                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6996                 error = EINVAL;
6997                 goto out_now;
6998         }
6999         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7000             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7001                 /* We are already connected AND the TCP model */
7002                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7003                 error = EADDRINUSE;
7004                 goto out_now;
7005         }
7006         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7007                 SCTP_INP_RLOCK(inp);
7008                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7009                 SCTP_INP_RUNLOCK(inp);
7010         } else {
7011                 /*
7012                  * We increment here since sctp_findassociation_ep_addr()
7013                  * will do a decrement if it finds the stcb as long as the
7014                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7015                  */
7016                 SCTP_INP_INCR_REF(inp);
7017                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7018                 if (stcb == NULL) {
7019                         SCTP_INP_DECR_REF(inp);
7020                 } else {
7021                         SCTP_TCB_UNLOCK(stcb);
7022                 }
7023         }
7024         if (stcb != NULL) {
7025                 /* Already have or am bring up an association */
7026                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7027                 error = EALREADY;
7028                 goto out_now;
7029         }
7030
7031         vrf_id = inp->def_vrf_id;
7032         /* We are GOOD to go */
7033         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7034             inp->sctp_ep.pre_open_stream_count,
7035             inp->sctp_ep.port, p);
7036         if (stcb == NULL) {
7037                 /* Gak! no memory */
7038                 goto out_now;
7039         }
7040         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7041                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7042                 /* Set the connected flag so we can queue data */
7043                 soisconnecting(so);
7044         }
7045         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7046         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7047
7048         /* initialize authentication parameters for the assoc */
7049         sctp_initialize_auth_params(inp, stcb);
7050
7051         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7052         SCTP_TCB_UNLOCK(stcb);
7053 out_now:
7054         if (create_lock_on) {
7055                 SCTP_ASOC_CREATE_UNLOCK(inp);
7056         }
7057
7058         SCTP_INP_DECR_REF(inp);
7059         return (error);
7060 }
7061 #endif
7062
7063 int
7064 sctp_listen(struct socket *so, int backlog, struct thread *p)
7065 {
7066         /*
7067          * Note this module depends on the protocol processing being called
7068          * AFTER any socket level flags and backlog are applied to the
7069          * socket. The traditional way that the socket flags are applied is
7070          * AFTER protocol processing. We have made a change to the
7071          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7072          * place if the socket API for SCTP is to work properly.
7073          */
7074
7075         int error = 0;
7076         struct sctp_inpcb *inp;
7077
7078         inp = (struct sctp_inpcb *)so->so_pcb;
7079         if (inp == NULL) {
7080                 /* I made the same as TCP since we are not setup? */
7081                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7082                 return (ECONNRESET);
7083         }
7084         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7085                 /* See if we have a listener */
7086                 struct sctp_inpcb *tinp;
7087                 union sctp_sockstore store;
7088
7089                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7090                         /* not bound all */
7091                         struct sctp_laddr *laddr;
7092
7093                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7094                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7095                                 switch (store.sa.sa_family) {
7096 #ifdef INET
7097                                 case AF_INET:
7098                                         store.sin.sin_port = inp->sctp_lport;
7099                                         break;
7100 #endif
7101 #ifdef INET6
7102                                 case AF_INET6:
7103                                         store.sin6.sin6_port = inp->sctp_lport;
7104                                         break;
7105 #endif
7106                                 default:
7107                                         break;
7108                                 }
7109                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7110                                 if (tinp && (tinp != inp) &&
7111                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7112                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7113                                     (SCTP_IS_LISTENING(tinp))) {
7114                                         /*
7115                                          * we have a listener already and
7116                                          * its not this inp.
7117                                          */
7118                                         SCTP_INP_DECR_REF(tinp);
7119                                         return (EADDRINUSE);
7120                                 } else if (tinp) {
7121                                         SCTP_INP_DECR_REF(tinp);
7122                                 }
7123                         }
7124                 } else {
7125                         /* Setup a local addr bound all */
7126                         memset(&store, 0, sizeof(store));
7127 #ifdef INET6
7128                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7129                                 store.sa.sa_family = AF_INET6;
7130                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7131                         }
7132 #endif
7133 #ifdef INET
7134                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7135                                 store.sa.sa_family = AF_INET;
7136                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7137                         }
7138 #endif
7139                         switch (store.sa.sa_family) {
7140 #ifdef INET
7141                         case AF_INET:
7142                                 store.sin.sin_port = inp->sctp_lport;
7143                                 break;
7144 #endif
7145 #ifdef INET6
7146                         case AF_INET6:
7147                                 store.sin6.sin6_port = inp->sctp_lport;
7148                                 break;
7149 #endif
7150                         default:
7151                                 break;
7152                         }
7153                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7154                         if (tinp && (tinp != inp) &&
7155                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7156                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7157                             (SCTP_IS_LISTENING(tinp))) {
7158                                 /*
7159                                  * we have a listener already and its not
7160                                  * this inp.
7161                                  */
7162                                 SCTP_INP_DECR_REF(tinp);
7163                                 return (EADDRINUSE);
7164                         } else if (tinp) {
7165                                 SCTP_INP_DECR_REF(tinp);
7166                         }
7167                 }
7168         }
7169         SCTP_INP_RLOCK(inp);
7170 #ifdef SCTP_LOCK_LOGGING
7171         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7172                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7173         }
7174 #endif
7175         SOCK_LOCK(so);
7176         error = solisten_proto_check(so);
7177         SOCK_UNLOCK(so);
7178         if (error) {
7179                 SCTP_INP_RUNLOCK(inp);
7180                 return (error);
7181         }
7182         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7183             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7184                 /*
7185                  * The unlucky case - We are in the tcp pool with this guy.
7186                  * - Someone else is in the main inp slot. - We must move
7187                  * this guy (the listener) to the main slot - We must then
7188                  * move the guy that was listener to the TCP Pool.
7189                  */
7190                 if (sctp_swap_inpcb_for_listen(inp)) {
7191                         SCTP_INP_RUNLOCK(inp);
7192                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7193                         return (EADDRINUSE);
7194                 }
7195         }
7196
7197         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7198             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7199                 /* We are already connected AND the TCP model */
7200                 SCTP_INP_RUNLOCK(inp);
7201                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7202                 return (EADDRINUSE);
7203         }
7204         SCTP_INP_RUNLOCK(inp);
7205         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7206                 /* We must do a bind. */
7207                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7208                         /* bind error, probably perm */
7209                         return (error);
7210                 }
7211         }
7212         SCTP_INP_WLOCK(inp);
7213         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7214                 SOCK_LOCK(so);
7215                 solisten_proto(so, backlog);
7216                 SOCK_UNLOCK(so);
7217         }
7218         if (backlog > 0) {
7219                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7220         } else {
7221                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7222         }
7223         SCTP_INP_WUNLOCK(inp);
7224         return (error);
7225 }
7226
7227 static int sctp_defered_wakeup_cnt = 0;
7228
7229 int
7230 sctp_accept(struct socket *so, struct sockaddr **addr)
7231 {
7232         struct sctp_tcb *stcb;
7233         struct sctp_inpcb *inp;
7234         union sctp_sockstore store;
7235 #ifdef INET6
7236         int error;
7237 #endif
7238         inp = (struct sctp_inpcb *)so->so_pcb;
7239
7240         if (inp == NULL) {
7241                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7242                 return (ECONNRESET);
7243         }
7244         SCTP_INP_RLOCK(inp);
7245         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7246                 SCTP_INP_RUNLOCK(inp);
7247                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7248                 return (EOPNOTSUPP);
7249         }
7250         if (so->so_state & SS_ISDISCONNECTED) {
7251                 SCTP_INP_RUNLOCK(inp);
7252                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7253                 return (ECONNABORTED);
7254         }
7255         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7256         if (stcb == NULL) {
7257                 SCTP_INP_RUNLOCK(inp);
7258                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7259                 return (ECONNRESET);
7260         }
7261         SCTP_TCB_LOCK(stcb);
7262         SCTP_INP_RUNLOCK(inp);
7263         store = stcb->asoc.primary_destination->ro._l_addr;
7264         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7265         SCTP_TCB_UNLOCK(stcb);
7266         switch (store.sa.sa_family) {
7267 #ifdef INET
7268         case AF_INET:
7269                 {
7270                         struct sockaddr_in *sin;
7271
7272                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7273                         if (sin == NULL)
7274                                 return (ENOMEM);
7275                         sin->sin_family = AF_INET;
7276                         sin->sin_len = sizeof(*sin);
7277                         sin->sin_port = store.sin.sin_port;
7278                         sin->sin_addr = store.sin.sin_addr;
7279                         *addr = (struct sockaddr *)sin;
7280                         break;
7281                 }
7282 #endif
7283 #ifdef INET6
7284         case AF_INET6:
7285                 {
7286                         struct sockaddr_in6 *sin6;
7287
7288                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7289                         if (sin6 == NULL)
7290                                 return (ENOMEM);
7291                         sin6->sin6_family = AF_INET6;
7292                         sin6->sin6_len = sizeof(*sin6);
7293                         sin6->sin6_port = store.sin6.sin6_port;
7294                         sin6->sin6_addr = store.sin6.sin6_addr;
7295                         if ((error = sa6_recoverscope(sin6)) != 0) {
7296                                 SCTP_FREE_SONAME(sin6);
7297                                 return (error);
7298                         }
7299                         *addr = (struct sockaddr *)sin6;
7300                         break;
7301                 }
7302 #endif
7303         default:
7304                 /* TSNH */
7305                 break;
7306         }
7307         /* Wake any delayed sleep action */
7308         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7309                 SCTP_INP_WLOCK(inp);
7310                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7311                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7312                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7313                         SCTP_INP_WUNLOCK(inp);
7314                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7315                         if (sowriteable(inp->sctp_socket)) {
7316                                 sowwakeup_locked(inp->sctp_socket);
7317                         } else {
7318                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7319                         }
7320                         SCTP_INP_WLOCK(inp);
7321                 }
7322                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7323                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7324                         SCTP_INP_WUNLOCK(inp);
7325                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7326                         if (soreadable(inp->sctp_socket)) {
7327                                 sctp_defered_wakeup_cnt++;
7328                                 sorwakeup_locked(inp->sctp_socket);
7329                         } else {
7330                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7331                         }
7332                         SCTP_INP_WLOCK(inp);
7333                 }
7334                 SCTP_INP_WUNLOCK(inp);
7335         }
7336         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7337                 SCTP_TCB_LOCK(stcb);
7338                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7339                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7340         }
7341         return (0);
7342 }
7343
7344 #ifdef INET
7345 int
7346 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7347 {
7348         struct sockaddr_in *sin;
7349         uint32_t vrf_id;
7350         struct sctp_inpcb *inp;
7351         struct sctp_ifa *sctp_ifa;
7352
7353         /*
7354          * Do the malloc first in case it blocks.
7355          */
7356         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7357         if (sin == NULL)
7358                 return (ENOMEM);
7359         sin->sin_family = AF_INET;
7360         sin->sin_len = sizeof(*sin);
7361         inp = (struct sctp_inpcb *)so->so_pcb;
7362         if (!inp) {
7363                 SCTP_FREE_SONAME(sin);
7364                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7365                 return (ECONNRESET);
7366         }
7367         SCTP_INP_RLOCK(inp);
7368         sin->sin_port = inp->sctp_lport;
7369         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7370                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7371                         struct sctp_tcb *stcb;
7372                         struct sockaddr_in *sin_a;
7373                         struct sctp_nets *net;
7374                         int fnd;
7375
7376                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7377                         if (stcb == NULL) {
7378                                 goto notConn;
7379                         }
7380                         fnd = 0;
7381                         sin_a = NULL;
7382                         SCTP_TCB_LOCK(stcb);
7383                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7384                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7385                                 if (sin_a == NULL)
7386                                         /* this will make coverity happy */
7387                                         continue;
7388
7389                                 if (sin_a->sin_family == AF_INET) {
7390                                         fnd = 1;
7391                                         break;
7392                                 }
7393                         }
7394                         if ((!fnd) || (sin_a == NULL)) {
7395                                 /* punt */
7396                                 SCTP_TCB_UNLOCK(stcb);
7397                                 goto notConn;
7398                         }
7399
7400                         vrf_id = inp->def_vrf_id;
7401                         sctp_ifa = sctp_source_address_selection(inp,
7402                             stcb,
7403                             (sctp_route_t *)&net->ro,
7404                             net, 0, vrf_id);
7405                         if (sctp_ifa) {
7406                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7407                                 sctp_free_ifa(sctp_ifa);
7408                         }
7409                         SCTP_TCB_UNLOCK(stcb);
7410                 } else {
7411                         /* For the bound all case you get back 0 */
7412         notConn:
7413                         sin->sin_addr.s_addr = 0;
7414                 }
7415
7416         } else {
7417                 /* Take the first IPv4 address in the list */
7418                 struct sctp_laddr *laddr;
7419                 int fnd = 0;
7420
7421                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7422                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7423                                 struct sockaddr_in *sin_a;
7424
7425                                 sin_a = &laddr->ifa->address.sin;
7426                                 sin->sin_addr = sin_a->sin_addr;
7427                                 fnd = 1;
7428                                 break;
7429                         }
7430                 }
7431                 if (!fnd) {
7432                         SCTP_FREE_SONAME(sin);
7433                         SCTP_INP_RUNLOCK(inp);
7434                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7435                         return (ENOENT);
7436                 }
7437         }
7438         SCTP_INP_RUNLOCK(inp);
7439         (*addr) = (struct sockaddr *)sin;
7440         return (0);
7441 }
7442
7443 int
7444 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7445 {
7446         struct sockaddr_in *sin;
7447         int fnd;
7448         struct sockaddr_in *sin_a;
7449         struct sctp_inpcb *inp;
7450         struct sctp_tcb *stcb;
7451         struct sctp_nets *net;
7452
7453         /* Do the malloc first in case it blocks. */
7454         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7455         if (sin == NULL)
7456                 return (ENOMEM);
7457         sin->sin_family = AF_INET;
7458         sin->sin_len = sizeof(*sin);
7459
7460         inp = (struct sctp_inpcb *)so->so_pcb;
7461         if ((inp == NULL) ||
7462             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7463                 /* UDP type and listeners will drop out here */
7464                 SCTP_FREE_SONAME(sin);
7465                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7466                 return (ENOTCONN);
7467         }
7468         SCTP_INP_RLOCK(inp);
7469         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7470         if (stcb) {
7471                 SCTP_TCB_LOCK(stcb);
7472         }
7473         SCTP_INP_RUNLOCK(inp);
7474         if (stcb == NULL) {
7475                 SCTP_FREE_SONAME(sin);
7476                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7477                 return (ECONNRESET);
7478         }
7479         fnd = 0;
7480         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7481                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7482                 if (sin_a->sin_family == AF_INET) {
7483                         fnd = 1;
7484                         sin->sin_port = stcb->rport;
7485                         sin->sin_addr = sin_a->sin_addr;
7486                         break;
7487                 }
7488         }
7489         SCTP_TCB_UNLOCK(stcb);
7490         if (!fnd) {
7491                 /* No IPv4 address */
7492                 SCTP_FREE_SONAME(sin);
7493                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7494                 return (ENOENT);
7495         }
7496         (*addr) = (struct sockaddr *)sin;
7497         return (0);
7498 }
7499
7500 struct pr_usrreqs sctp_usrreqs = {
7501         .pru_abort = sctp_abort,
7502         .pru_accept = sctp_accept,
7503         .pru_attach = sctp_attach,
7504         .pru_bind = sctp_bind,
7505         .pru_connect = sctp_connect,
7506         .pru_control = in_control,
7507         .pru_close = sctp_close,
7508         .pru_detach = sctp_close,
7509         .pru_sopoll = sopoll_generic,
7510         .pru_flush = sctp_flush,
7511         .pru_disconnect = sctp_disconnect,
7512         .pru_listen = sctp_listen,
7513         .pru_peeraddr = sctp_peeraddr,
7514         .pru_send = sctp_sendm,
7515         .pru_shutdown = sctp_shutdown,
7516         .pru_sockaddr = sctp_ingetaddr,
7517         .pru_sosend = sctp_sosend,
7518         .pru_soreceive = sctp_soreceive
7519 };
7520 #endif