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_PRINTF("huh? control set?\n");
 634                         sctp_m_freem(inp->control);
 635                         inp->control = NULL;
 636                 }
 637                 inp->control = control;
 638         }
 639         /* Place the data */
 640         if (inp->pkt) {
 641                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 642                 inp->pkt_last = m;
 643         } else {
 644                 inp->pkt_last = inp->pkt = m;
 645         }
 646         if (
 647         /* FreeBSD uses a flag passed */
 648             ((flags & PRUS_MORETOCOME) == 0)
 649             ) {
 650                 /*
 651                  * note with the current version this code will only be used
 652                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 653                  * re-defining sosend to use the sctp_sosend. One can
 654                  * optionally switch back to this code (by changing back the
 655                  * definitions) but this is not advisable. This code is used
 656                  * by FreeBSD when sending a file with sendfile() though.
 657                  */
 658                 int ret;
 659
 660                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 661                 inp->pkt = NULL;
 662                 inp->control = NULL;
 663                 return (ret);
 664         } else {
 665                 return (0);
 666         }
 667 }
 668
 669 int
 670 sctp_disconnect(struct socket *so)
 671 {
 672         struct sctp_inpcb *inp;
 673
 674         inp = (struct sctp_inpcb *)so->so_pcb;
 675         if (inp == NULL) {
 676                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 677                 return (ENOTCONN);
 678         }
 679         SCTP_INP_RLOCK(inp);
 680         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 681             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 682                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 683                         /* No connection */
 684                         SCTP_INP_RUNLOCK(inp);
 685                         return (0);
 686                 } else {
 687                         struct sctp_association *asoc;
 688                         struct sctp_tcb *stcb;
 689
 690                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 691                         if (stcb == NULL) {
 692                                 SCTP_INP_RUNLOCK(inp);
 693                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 694                                 return (EINVAL);
 695                         }
 696                         SCTP_TCB_LOCK(stcb);
 697                         asoc = &stcb->asoc;
 698                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 699                                 /* We are about to be freed, out of here */
 700                                 SCTP_TCB_UNLOCK(stcb);
 701                                 SCTP_INP_RUNLOCK(inp);
 702                                 return (0);
 703                         }
 704                         if (((so->so_options & SO_LINGER) &&
 705                             (so->so_linger == 0)) ||
 706                             (so->so_rcv.sb_cc > 0)) {
 707                                 if (SCTP_GET_STATE(asoc) !=
 708                                     SCTP_STATE_COOKIE_WAIT) {
 709                                         /* Left with Data unread */
 710                                         struct mbuf *op_err;
 711
 712                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 713                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 714                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 715                                 }
 716                                 SCTP_INP_RUNLOCK(inp);
 717                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 718                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 719                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 720                                 }
 721                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 722                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 723                                 /* No unlock tcb assoc is gone */
 724                                 return (0);
 725                         }
 726                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 727                             TAILQ_EMPTY(&asoc->sent_queue) &&
 728                             (asoc->stream_queue_cnt == 0)) {
 729                                 /* there is nothing queued to send, so done */
 730                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 731                                         goto abort_anyway;
 732                                 }
 733                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 734                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 735                                         /* only send SHUTDOWN 1st time thru */
 736                                         struct sctp_nets *netp;
 737
 738                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 739                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 740                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 741                                         }
 742                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 743                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 744                                         sctp_stop_timers_for_shutdown(stcb);
 745                                         if (stcb->asoc.alternate) {
 746                                                 netp = stcb->asoc.alternate;
 747                                         } else {
 748                                                 netp = stcb->asoc.primary_destination;
 749                                         }
 750                                         sctp_send_shutdown(stcb, netp);
 751                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 752                                             stcb->sctp_ep, stcb, netp);
 753                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 754                                             stcb->sctp_ep, stcb, netp);
 755                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 756                                 }
 757                         } else {
 758                                 /*
 759                                  * we still got (or just got) data to send,
 760                                  * so set SHUTDOWN_PENDING
 761                                  */
 762                                 /*
 763                                  * XXX sockets draft says that SCTP_EOF
 764                                  * should be sent with no data. currently,
 765                                  * we will allow user data to be sent first
 766                                  * and move to SHUTDOWN-PENDING
 767                                  */
 768                                 struct sctp_nets *netp;
 769
 770                                 if (stcb->asoc.alternate) {
 771                                         netp = stcb->asoc.alternate;
 772                                 } else {
 773                                         netp = stcb->asoc.primary_destination;
 774                                 }
 775
 776                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 777                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 778                                     netp);
 779                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 780                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 781                                 }
 782                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 783                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 784                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 785                                         struct mbuf *op_err;
 786
 787                         abort_anyway:
 788                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 789                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 790                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 791                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 792                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 793                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 794                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 795                                         }
 796                                         SCTP_INP_RUNLOCK(inp);
 797                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 798                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 799                                         return (0);
 800                                 } else {
 801                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 802                                 }
 803                         }
 804                         soisdisconnecting(so);
 805                         SCTP_TCB_UNLOCK(stcb);
 806                         SCTP_INP_RUNLOCK(inp);
 807                         return (0);
 808                 }
 809                 /* not reached */
 810         } else {
 811                 /* UDP model does not support this */
 812                 SCTP_INP_RUNLOCK(inp);
 813                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 814                 return (EOPNOTSUPP);
 815         }
 816 }
 817
 818 int
 819 sctp_flush(struct socket *so, int how)
 820 {
 821         /*
 822          * We will just clear out the values and let subsequent close clear
 823          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 824          * they will not be able to read the data, the socket will block
 825          * that from happening.
 826          */
 827         struct sctp_inpcb *inp;
 828
 829         inp = (struct sctp_inpcb *)so->so_pcb;
 830         if (inp == NULL) {
 831                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 832                 return (EINVAL);
 833         }
 834         SCTP_INP_RLOCK(inp);
 835         /* For the 1 to many model this does nothing */
 836         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 837                 SCTP_INP_RUNLOCK(inp);
 838                 return (0);
 839         }
 840         SCTP_INP_RUNLOCK(inp);
 841         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 842                 /*
 843                  * First make sure the sb will be happy, we don't use these
 844                  * except maybe the count
 845                  */
 846                 SCTP_INP_WLOCK(inp);
 847                 SCTP_INP_READ_LOCK(inp);
 848                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 849                 SCTP_INP_READ_UNLOCK(inp);
 850                 SCTP_INP_WUNLOCK(inp);
 851                 so->so_rcv.sb_cc = 0;
 852                 so->so_rcv.sb_mbcnt = 0;
 853                 so->so_rcv.sb_mb = NULL;
 854         }
 855         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 856                 /*
 857                  * First make sure the sb will be happy, we don't use these
 858                  * except maybe the count
 859                  */
 860                 so->so_snd.sb_cc = 0;
 861                 so->so_snd.sb_mbcnt = 0;
 862                 so->so_snd.sb_mb = NULL;
 863
 864         }
 865         return (0);
 866 }
 867
 868 int
 869 sctp_shutdown(struct socket *so)
 870 {
 871         struct sctp_inpcb *inp;
 872
 873         inp = (struct sctp_inpcb *)so->so_pcb;
 874         if (inp == NULL) {
 875                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 876                 return (EINVAL);
 877         }
 878         SCTP_INP_RLOCK(inp);
 879         /* For UDP model this is a invalid call */
 880         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 881             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 882                 /* Restore the flags that the soshutdown took away. */
 883                 SOCKBUF_LOCK(&so->so_rcv);
 884                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 885                 SOCKBUF_UNLOCK(&so->so_rcv);
 886                 /* This proc will wakeup for read and do nothing (I hope) */
 887                 SCTP_INP_RUNLOCK(inp);
 888                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 889                 return (EOPNOTSUPP);
 890         } else {
 891                 /*
 892                  * Ok, if we reach here its the TCP model and it is either a
 893                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 894                  * against it.
 895                  */
 896                 struct sctp_tcb *stcb;
 897                 struct sctp_association *asoc;
 898                 struct sctp_nets *netp;
 899
 900                 if ((so->so_state &
 901                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 902                         SCTP_INP_RUNLOCK(inp);
 903                         return (ENOTCONN);
 904                 }
 905                 socantsendmore(so);
 906
 907                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 908                 if (stcb == NULL) {
 909                         /*
 910                          * Ok, we hit the case that the shutdown call was
 911                          * made after an abort or something. Nothing to do
 912                          * now.
 913                          */
 914                         SCTP_INP_RUNLOCK(inp);
 915                         return (0);
 916                 }
 917                 SCTP_TCB_LOCK(stcb);
 918                 asoc = &stcb->asoc;
 919                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 920                         SCTP_TCB_UNLOCK(stcb);
 921                         SCTP_INP_RUNLOCK(inp);
 922                         return (0);
 923                 }
 924                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 925                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 926                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 927                         /*
 928                          * If we are not in or before ESTABLISHED, there is
 929                          * no protocol action required.
 930                          */
 931                         SCTP_TCB_UNLOCK(stcb);
 932                         SCTP_INP_RUNLOCK(inp);
 933                         return (0);
 934                 }
 935                 if (stcb->asoc.alternate) {
 936                         netp = stcb->asoc.alternate;
 937                 } else {
 938                         netp = stcb->asoc.primary_destination;
 939                 }
 940                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 941                     TAILQ_EMPTY(&asoc->send_queue) &&
 942                     TAILQ_EMPTY(&asoc->sent_queue) &&
 943                     (asoc->stream_queue_cnt == 0)) {
 944                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 945                                 goto abort_anyway;
 946                         }
 947                         /* there is nothing queued to send, so I'm done... */
 948                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 949                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 950                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 951                         sctp_stop_timers_for_shutdown(stcb);
 952                         sctp_send_shutdown(stcb, netp);
 953                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 954                             stcb->sctp_ep, stcb, netp);
 955                 } else {
 956                         /*
 957                          * We still got (or just got) data to send, so set
 958                          * SHUTDOWN_PENDING.
 959                          */
 960                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 961                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 962                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 963                         }
 964                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 965                             TAILQ_EMPTY(&asoc->sent_queue) &&
 966                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 967                                 struct mbuf *op_err;
 968
 969                 abort_anyway:
 970                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 971                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 972                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 973                                     op_err, SCTP_SO_LOCKED);
 974                                 SCTP_INP_RUNLOCK(inp);
 975                                 return (0);
 976                         }
 977                 }
 978                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 979                 /*
 980                  * XXX: Why do this in the case where we have still data
 981                  * queued?
 982                  */
 983                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 984                 SCTP_TCB_UNLOCK(stcb);
 985                 SCTP_INP_RUNLOCK(inp);
 986                 return (0);
 987         }
 988 }
 989
 990 /*
 991  * copies a "user" presentable address and removes embedded scope, etc.
 992  * returns 0 on success, 1 on error
 993  */
 994 static uint32_t
 995 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 996 {
 997 #ifdef INET6
 998         struct sockaddr_in6 lsa6;
 999
1000         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1001             &lsa6);
1002 #endif
1003         memcpy(ss, sa, sa->sa_len);
1004         return (0);
1005 }
1006
1007
1008
1009 /*
1010  * NOTE: assumes addr lock is held
1011  */
1012 static size_t
1013 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1014     struct sctp_tcb *stcb,
1015     size_t limit,
1016     struct sockaddr_storage *sas,
1017     uint32_t vrf_id)
1018 {
1019         struct sctp_ifn *sctp_ifn;
1020         struct sctp_ifa *sctp_ifa;
1021         size_t actual;
1022         int loopback_scope;
1023 #if defined(INET)
1024         int ipv4_local_scope, ipv4_addr_legal;
1025 #endif
1026 #if defined(INET6)
1027         int local_scope, site_scope, ipv6_addr_legal;
1028 #endif
1029         struct sctp_vrf *vrf;
1030
1031         actual = 0;
1032         if (limit <= 0)
1033                 return (actual);
1034
1035         if (stcb) {
1036                 /* Turn on all the appropriate scope */
1037                 loopback_scope = stcb->asoc.scope.loopback_scope;
1038 #if defined(INET)
1039                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1040                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1041 #endif
1042 #if defined(INET6)
1043                 local_scope = stcb->asoc.scope.local_scope;
1044                 site_scope = stcb->asoc.scope.site_scope;
1045                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1046 #endif
1047         } else {
1048                 /* Use generic values for endpoints. */
1049                 loopback_scope = 1;
1050 #if defined(INET)
1051                 ipv4_local_scope = 1;
1052 #endif
1053 #if defined(INET6)
1054                 local_scope = 1;
1055                 site_scope = 1;
1056 #endif
1057                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1058 #if defined(INET6)
1059                         ipv6_addr_legal = 1;
1060 #endif
1061 #if defined(INET)
1062                         if (SCTP_IPV6_V6ONLY(inp)) {
1063                                 ipv4_addr_legal = 0;
1064                         } else {
1065                                 ipv4_addr_legal = 1;
1066                         }
1067 #endif
1068                 } else {
1069 #if defined(INET6)
1070                         ipv6_addr_legal = 0;
1071 #endif
1072 #if defined(INET)
1073                         ipv4_addr_legal = 1;
1074 #endif
1075                 }
1076         }
1077         vrf = sctp_find_vrf(vrf_id);
1078         if (vrf == NULL) {
1079                 return (0);
1080         }
1081         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1082                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1083                         if ((loopback_scope == 0) &&
1084                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1085                                 /* Skip loopback if loopback_scope not set */
1086                                 continue;
1087                         }
1088                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1089                                 if (stcb) {
1090                                         /*
1091                                          * For the BOUND-ALL case, the list
1092                                          * associated with a TCB is Always
1093                                          * considered a reverse list.. i.e.
1094                                          * it lists addresses that are NOT
1095                                          * part of the association. If this
1096                                          * is one of those we must skip it.
1097                                          */
1098                                         if (sctp_is_addr_restricted(stcb,
1099                                             sctp_ifa)) {
1100                                                 continue;
1101                                         }
1102                                 }
1103                                 switch (sctp_ifa->address.sa.sa_family) {
1104 #ifdef INET
1105                                 case AF_INET:
1106                                         if (ipv4_addr_legal) {
1107                                                 struct sockaddr_in *sin;
1108
1109                                                 sin = &sctp_ifa->address.sin;
1110                                                 if (sin->sin_addr.s_addr == 0) {
1111                                                         /*
1112                                                          * we skip
1113                                                          * unspecifed
1114                                                          * addresses
1115                                                          */
1116                                                         continue;
1117                                                 }
1118                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1119                                                     &sin->sin_addr) != 0) {
1120                                                         continue;
1121                                                 }
1122                                                 if ((ipv4_local_scope == 0) &&
1123                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1124                                                         continue;
1125                                                 }
1126 #ifdef INET6
1127                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1128                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1129                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1130                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1131                                                         actual += sizeof(struct sockaddr_in6);
1132                                                 } else {
1133 #endif
1134                                                         memcpy(sas, sin, sizeof(*sin));
1135                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1136                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1137                                                         actual += sizeof(*sin);
1138 #ifdef INET6
1139                                                 }
1140 #endif
1141                                                 if (actual >= limit) {
1142                                                         return (actual);
1143                                                 }
1144                                         } else {
1145                                                 continue;
1146                                         }
1147                                         break;
1148 #endif
1149 #ifdef INET6
1150                                 case AF_INET6:
1151                                         if (ipv6_addr_legal) {
1152                                                 struct sockaddr_in6 *sin6;
1153
1154                                                 sin6 = &sctp_ifa->address.sin6;
1155                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1156                                                         /*
1157                                                          * we skip
1158                                                          * unspecifed
1159                                                          * addresses
1160                                                          */
1161                                                         continue;
1162                                                 }
1163                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1164                                                     &sin6->sin6_addr) != 0) {
1165                                                         continue;
1166                                                 }
1167                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1168                                                         if (local_scope == 0)
1169                                                                 continue;
1170                                                         if (sin6->sin6_scope_id == 0) {
1171                                                                 if (sa6_recoverscope(sin6) != 0)
1172                                                                         /*
1173                                                                          *
1174                                                                          * bad
1175                                                                          * link
1176                                                                          *
1177                                                                          * local
1178                                                                          *
1179                                                                          * address
1180                                                                          */
1181                                                                         continue;
1182                                                         }
1183                                                 }
1184                                                 if ((site_scope == 0) &&
1185                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1186                                                         continue;
1187                                                 }
1188                                                 memcpy(sas, sin6, sizeof(*sin6));
1189                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1190                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1191                                                 actual += sizeof(*sin6);
1192                                                 if (actual >= limit) {
1193                                                         return (actual);
1194                                                 }
1195                                         } else {
1196                                                 continue;
1197                                         }
1198                                         break;
1199 #endif
1200                                 default:
1201                                         /* TSNH */
1202                                         break;
1203                                 }
1204                         }
1205                 }
1206         } else {
1207                 struct sctp_laddr *laddr;
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                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1216                                 continue;
1217                         switch (laddr->ifa->address.sa.sa_family) {
1218 #ifdef INET
1219                         case AF_INET:
1220                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1221                                 break;
1222 #endif
1223 #ifdef INET6
1224                         case AF_INET6:
1225                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1226                                 break;
1227 #endif
1228                         default:
1229                                 /* TSNH */
1230                                 break;
1231                         }
1232                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1233                             laddr->ifa->address.sa.sa_len);
1234                         actual += laddr->ifa->address.sa.sa_len;
1235                         if (actual >= limit) {
1236                                 return (actual);
1237                         }
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->asoc, 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(struct sctp_getaddresses);
2243                                 *optsize = sizeof(struct sctp_getaddresses);
2244                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2245
2246                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2247                                         switch (net->ro._l_addr.sa.sa_family) {
2248 #ifdef INET
2249                                         case AF_INET:
2250 #ifdef INET6
2251                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2252                                                         cpsz = sizeof(struct sockaddr_in6);
2253                                                 } else {
2254                                                         cpsz = sizeof(struct sockaddr_in);
2255                                                 }
2256 #else
2257                                                 cpsz = sizeof(struct sockaddr_in);
2258 #endif
2259                                                 break;
2260 #endif
2261 #ifdef INET6
2262                                         case AF_INET6:
2263                                                 cpsz = sizeof(struct sockaddr_in6);
2264                                                 break;
2265 #endif
2266                                         default:
2267                                                 cpsz = 0;
2268                                                 break;
2269                                         }
2270                                         if (cpsz == 0) {
2271                                                 break;
2272                                         }
2273                                         if (left < cpsz) {
2274                                                 /* not enough room. */
2275                                                 break;
2276                                         }
2277 #if defined(INET) && defined(INET6)
2278                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2279                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2280                                                 /* Must map the address */
2281                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2282                                                     (struct sockaddr_in6 *)sas);
2283                                         } else {
2284                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2285                                         }
2286 #else
2287                                         memcpy(sas, &net->ro._l_addr, cpsz);
2288 #endif
2289                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2290
2291                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2292                                         left -= cpsz;
2293                                         *optsize += cpsz;
2294                                 }
2295                                 SCTP_TCB_UNLOCK(stcb);
2296                         } else {
2297                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2298                                 error = ENOENT;
2299                         }
2300                         break;
2301                 }
2302         case SCTP_GET_LOCAL_ADDRESSES:
2303                 {
2304                         size_t limit, actual;
2305                         struct sockaddr_storage *sas;
2306                         struct sctp_getaddresses *saddr;
2307
2308                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2309                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2310
2311                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2312                         limit = *optsize - sizeof(sctp_assoc_t);
2313                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2314                         if (stcb) {
2315                                 SCTP_TCB_UNLOCK(stcb);
2316                         }
2317                         *optsize = sizeof(struct sockaddr_storage) + actual;
2318                         break;
2319                 }
2320         case SCTP_PEER_ADDR_PARAMS:
2321                 {
2322                         struct sctp_paddrparams *paddrp;
2323                         struct sctp_nets *net;
2324                         struct sockaddr *addr;
2325 #if defined(INET) && defined(INET6)
2326                         struct sockaddr_in sin_store;
2327 #endif
2328
2329                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2330                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2331
2332 #if defined(INET) && defined(INET6)
2333                         if (paddrp->spp_address.ss_family == AF_INET6) {
2334                                 struct sockaddr_in6 *sin6;
2335
2336                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2337                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2338                                         in6_sin6_2_sin(&sin_store, sin6);
2339                                         addr = (struct sockaddr *)&sin_store;
2340                                 } else {
2341                                         addr = (struct sockaddr *)&paddrp->spp_address;
2342                                 }
2343                         } else {
2344                                 addr = (struct sockaddr *)&paddrp->spp_address;
2345                         }
2346 #else
2347                         addr = (struct sockaddr *)&paddrp->spp_address;
2348 #endif
2349                         if (stcb != NULL) {
2350                                 net = sctp_findnet(stcb, addr);
2351                         } else {
2352                                 /*
2353                                  * We increment here since
2354                                  * sctp_findassociation_ep_addr() wil do a
2355                                  * decrement if it finds the stcb as long as
2356                                  * the locked tcb (last argument) is NOT a
2357                                  * TCB.. aka NULL.
2358                                  */
2359                                 net = NULL;
2360                                 SCTP_INP_INCR_REF(inp);
2361                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2362                                 if (stcb == NULL) {
2363                                         SCTP_INP_DECR_REF(inp);
2364                                 }
2365                         }
2366                         if ((stcb != NULL) && (net == NULL)) {
2367 #ifdef INET
2368                                 if (addr->sa_family == AF_INET) {
2369                                         struct sockaddr_in *sin;
2370
2371                                         sin = (struct sockaddr_in *)addr;
2372                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2373                                                 error = EINVAL;
2374                                                 SCTP_TCB_UNLOCK(stcb);
2375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2376                                                 break;
2377                                         }
2378                                 } else
2379 #endif
2380 #ifdef INET6
2381                                 if (addr->sa_family == AF_INET6) {
2382                                         struct sockaddr_in6 *sin6;
2383
2384                                         sin6 = (struct sockaddr_in6 *)addr;
2385                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2386                                                 error = EINVAL;
2387                                                 SCTP_TCB_UNLOCK(stcb);
2388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2389                                                 break;
2390                                         }
2391                                 } else
2392 #endif
2393                                 {
2394                                         error = EAFNOSUPPORT;
2395                                         SCTP_TCB_UNLOCK(stcb);
2396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2397                                         break;
2398                                 }
2399                         }
2400
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                         memcpy(&sstat->sstat_primary.spinfo_address,
2647                             &stcb->asoc.primary_destination->ro._l_addr,
2648                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2649                         net = stcb->asoc.primary_destination;
2650                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2651                         /*
2652                          * Again the user can get info from sctp_constants.h
2653                          * for what the state of the network is.
2654                          */
2655                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2656                                 /* It's unconfirmed */
2657                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2658                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2659                                 /* It's active */
2660                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2661                         } else {
2662                                 /* It's inactive */
2663                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2664                         }
2665                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2666                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2667                         sstat->sstat_primary.spinfo_rto = net->RTO;
2668                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2669                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2670 #if defined(INET)
2671                         case AF_INET:
2672                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2673                                 break;
2674 #endif
2675 #if defined(INET6)
2676                         case AF_INET6:
2677                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2678                                 break;
2679 #endif
2680                         default:
2681                                 break;
2682                         }
2683                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2684                         SCTP_TCB_UNLOCK(stcb);
2685                         *optsize = sizeof(struct sctp_status);
2686                         break;
2687                 }
2688         case SCTP_RTOINFO:
2689                 {
2690                         struct sctp_rtoinfo *srto;
2691
2692                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2693                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2694
2695                         if (stcb) {
2696                                 srto->srto_initial = stcb->asoc.initial_rto;
2697                                 srto->srto_max = stcb->asoc.maxrto;
2698                                 srto->srto_min = stcb->asoc.minrto;
2699                                 SCTP_TCB_UNLOCK(stcb);
2700                         } else {
2701                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2702                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2703                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2704                                         SCTP_INP_RLOCK(inp);
2705                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2706                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2707                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2708                                         SCTP_INP_RUNLOCK(inp);
2709                                 } else {
2710                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2711                                         error = EINVAL;
2712                                 }
2713                         }
2714                         if (error == 0) {
2715                                 *optsize = sizeof(struct sctp_rtoinfo);
2716                         }
2717                         break;
2718                 }
2719         case SCTP_TIMEOUTS:
2720                 {
2721                         struct sctp_timeouts *stimo;
2722
2723                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2724                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2725
2726                         if (stcb) {
2727                                 stimo->stimo_init = stcb->asoc.timoinit;
2728                                 stimo->stimo_data = stcb->asoc.timodata;
2729                                 stimo->stimo_sack = stcb->asoc.timosack;
2730                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2731                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2732                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2733                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2734                                 SCTP_TCB_UNLOCK(stcb);
2735                                 *optsize = sizeof(struct sctp_timeouts);
2736                         } else {
2737                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2738                                 error = EINVAL;
2739                         }
2740                         break;
2741                 }
2742         case SCTP_ASSOCINFO:
2743                 {
2744                         struct sctp_assocparams *sasoc;
2745
2746                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2747                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2748
2749                         if (stcb) {
2750                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2751                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2752                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2753                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2754                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2755                                 SCTP_TCB_UNLOCK(stcb);
2756                         } else {
2757                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2758                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2759                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2760                                         SCTP_INP_RLOCK(inp);
2761                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2762                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2763                                         sasoc->sasoc_number_peer_destinations = 0;
2764                                         sasoc->sasoc_peer_rwnd = 0;
2765                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2766                                         SCTP_INP_RUNLOCK(inp);
2767                                 } else {
2768                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2769                                         error = EINVAL;
2770                                 }
2771                         }
2772                         if (error == 0) {
2773                                 *optsize = sizeof(struct sctp_assocparams);
2774                         }
2775                         break;
2776                 }
2777         case SCTP_DEFAULT_SEND_PARAM:
2778                 {
2779                         struct sctp_sndrcvinfo *s_info;
2780
2781                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2782                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2783
2784                         if (stcb) {
2785                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2786                                 SCTP_TCB_UNLOCK(stcb);
2787                         } else {
2788                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2789                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2790                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2791                                         SCTP_INP_RLOCK(inp);
2792                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2793                                         SCTP_INP_RUNLOCK(inp);
2794                                 } else {
2795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2796                                         error = EINVAL;
2797                                 }
2798                         }
2799                         if (error == 0) {
2800                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2801                         }
2802                         break;
2803                 }
2804         case SCTP_INITMSG:
2805                 {
2806                         struct sctp_initmsg *sinit;
2807
2808                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2809                         SCTP_INP_RLOCK(inp);
2810                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2811                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2812                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2813                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2814                         SCTP_INP_RUNLOCK(inp);
2815                         *optsize = sizeof(struct sctp_initmsg);
2816                         break;
2817                 }
2818         case SCTP_PRIMARY_ADDR:
2819                 /* we allow a "get" operation on this */
2820                 {
2821                         struct sctp_setprim *ssp;
2822
2823                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2824                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2825
2826                         if (stcb) {
2827                                 union sctp_sockstore *addr;
2828
2829                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2830                                 switch (addr->sa.sa_family) {
2831 #ifdef INET
2832                                 case AF_INET:
2833 #ifdef INET6
2834                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2835                                                 in6_sin_2_v4mapsin6(&addr->sin,
2836                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2837                                         } else {
2838                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2839                                         }
2840 #else
2841                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2842 #endif
2843                                         break;
2844 #endif
2845 #ifdef INET6
2846                                 case AF_INET6:
2847                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2848                                         break;
2849 #endif
2850                                 default:
2851                                         break;
2852                                 }
2853                                 SCTP_TCB_UNLOCK(stcb);
2854                                 *optsize = sizeof(struct sctp_setprim);
2855                         } else {
2856                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2857                                 error = EINVAL;
2858                         }
2859                         break;
2860                 }
2861         case SCTP_HMAC_IDENT:
2862                 {
2863                         struct sctp_hmacalgo *shmac;
2864                         sctp_hmaclist_t *hmaclist;
2865                         uint32_t size;
2866                         int i;
2867
2868                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2869
2870                         SCTP_INP_RLOCK(inp);
2871                         hmaclist = inp->sctp_ep.local_hmacs;
2872                         if (hmaclist == NULL) {
2873                                 /* no HMACs to return */
2874                                 *optsize = sizeof(*shmac);
2875                                 SCTP_INP_RUNLOCK(inp);
2876                                 break;
2877                         }
2878                         /* is there room for all of the hmac ids? */
2879                         size = sizeof(*shmac) + (hmaclist->num_algo *
2880                             sizeof(shmac->shmac_idents[0]));
2881                         if ((size_t)(*optsize) < size) {
2882                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2883                                 error = EINVAL;
2884                                 SCTP_INP_RUNLOCK(inp);
2885                                 break;
2886                         }
2887                         /* copy in the list */
2888                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2889                         for (i = 0; i < hmaclist->num_algo; i++) {
2890                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2891                         }
2892                         SCTP_INP_RUNLOCK(inp);
2893                         *optsize = size;
2894                         break;
2895                 }
2896         case SCTP_AUTH_ACTIVE_KEY:
2897                 {
2898                         struct sctp_authkeyid *scact;
2899
2900                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2901                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2902
2903                         if (stcb) {
2904                                 /* get the active key on the assoc */
2905                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2906                                 SCTP_TCB_UNLOCK(stcb);
2907                         } else {
2908                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2909                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2910                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2911                                         /* get the endpoint active key */
2912                                         SCTP_INP_RLOCK(inp);
2913                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2914                                         SCTP_INP_RUNLOCK(inp);
2915                                 } else {
2916                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2917                                         error = EINVAL;
2918                                 }
2919                         }
2920                         if (error == 0) {
2921                                 *optsize = sizeof(struct sctp_authkeyid);
2922                         }
2923                         break;
2924                 }
2925         case SCTP_LOCAL_AUTH_CHUNKS:
2926                 {
2927                         struct sctp_authchunks *sac;
2928                         sctp_auth_chklist_t *chklist = NULL;
2929                         size_t size = 0;
2930
2931                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2932                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2933
2934                         if (stcb) {
2935                                 /* get off the assoc */
2936                                 chklist = stcb->asoc.local_auth_chunks;
2937                                 /* is there enough space? */
2938                                 size = sctp_auth_get_chklist_size(chklist);
2939                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2940                                         error = EINVAL;
2941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2942                                 } else {
2943                                         /* copy in the chunks */
2944                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2945                                         sac->gauth_number_of_chunks = (uint32_t)size;
2946                                         *optsize = sizeof(struct sctp_authchunks) + size;
2947                                 }
2948                                 SCTP_TCB_UNLOCK(stcb);
2949                         } else {
2950                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2951                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2952                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2953                                         /* get off the endpoint */
2954                                         SCTP_INP_RLOCK(inp);
2955                                         chklist = inp->sctp_ep.local_auth_chunks;
2956                                         /* is there enough space? */
2957                                         size = sctp_auth_get_chklist_size(chklist);
2958                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2959                                                 error = EINVAL;
2960                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2961                                         } else {
2962                                                 /* copy in the chunks */
2963                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2964                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2965                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2966                                         }
2967                                         SCTP_INP_RUNLOCK(inp);
2968                                 } else {
2969                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2970                                         error = EINVAL;
2971                                 }
2972                         }
2973                         break;
2974                 }
2975         case SCTP_PEER_AUTH_CHUNKS:
2976                 {
2977                         struct sctp_authchunks *sac;
2978                         sctp_auth_chklist_t *chklist = NULL;
2979                         size_t size = 0;
2980
2981                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2982                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2983
2984                         if (stcb) {
2985                                 /* get off the assoc */
2986                                 chklist = stcb->asoc.peer_auth_chunks;
2987                                 /* is there enough space? */
2988                                 size = sctp_auth_get_chklist_size(chklist);
2989                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2990                                         error = EINVAL;
2991                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2992                                 } else {
2993                                         /* copy in the chunks */
2994                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2995                                         sac->gauth_number_of_chunks = (uint32_t)size;
2996                                         *optsize = sizeof(struct sctp_authchunks) + size;
2997                                 }
2998                                 SCTP_TCB_UNLOCK(stcb);
2999                         } else {
3000                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3001                                 error = ENOENT;
3002                         }
3003                         break;
3004                 }
3005         case SCTP_EVENT:
3006                 {
3007                         struct sctp_event *event;
3008                         uint32_t event_type;
3009
3010                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3011                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3012
3013                         switch (event->se_type) {
3014                         case SCTP_ASSOC_CHANGE:
3015                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3016                                 break;
3017                         case SCTP_PEER_ADDR_CHANGE:
3018                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3019                                 break;
3020                         case SCTP_REMOTE_ERROR:
3021                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3022                                 break;
3023                         case SCTP_SEND_FAILED:
3024                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3025                                 break;
3026                         case SCTP_SHUTDOWN_EVENT:
3027                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3028                                 break;
3029                         case SCTP_ADAPTATION_INDICATION:
3030                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3031                                 break;
3032                         case SCTP_PARTIAL_DELIVERY_EVENT:
3033                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3034                                 break;
3035                         case SCTP_AUTHENTICATION_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3037                                 break;
3038                         case SCTP_STREAM_RESET_EVENT:
3039                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3040                                 break;
3041                         case SCTP_SENDER_DRY_EVENT:
3042                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3043                                 break;
3044                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3045                                 event_type = 0;
3046                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3047                                 error = ENOTSUP;
3048                                 break;
3049                         case SCTP_ASSOC_RESET_EVENT:
3050                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3051                                 break;
3052                         case SCTP_STREAM_CHANGE_EVENT:
3053                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3054                                 break;
3055                         case SCTP_SEND_FAILED_EVENT:
3056                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3057                                 break;
3058                         default:
3059                                 event_type = 0;
3060                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3061                                 error = EINVAL;
3062                                 break;
3063                         }
3064                         if (event_type > 0) {
3065                                 if (stcb) {
3066                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3067                                 } else {
3068                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3069                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3070                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3071                                                 SCTP_INP_RLOCK(inp);
3072                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3073                                                 SCTP_INP_RUNLOCK(inp);
3074                                         } else {
3075                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3076                                                 error = EINVAL;
3077                                         }
3078                                 }
3079                         }
3080                         if (stcb != NULL) {
3081                                 SCTP_TCB_UNLOCK(stcb);
3082                         }
3083                         if (error == 0) {
3084                                 *optsize = sizeof(struct sctp_event);
3085                         }
3086                         break;
3087                 }
3088         case SCTP_RECVRCVINFO:
3089                 {
3090                         int onoff;
3091
3092                         if (*optsize < sizeof(int)) {
3093                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3094                                 error = EINVAL;
3095                         } else {
3096                                 SCTP_INP_RLOCK(inp);
3097                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3098                                 SCTP_INP_RUNLOCK(inp);
3099                         }
3100                         if (error == 0) {
3101                                 /* return the option value */
3102                                 *(int *)optval = onoff;
3103                                 *optsize = sizeof(int);
3104                         }
3105                         break;
3106                 }
3107         case SCTP_RECVNXTINFO:
3108                 {
3109                         int onoff;
3110
3111                         if (*optsize < sizeof(int)) {
3112                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3113                                 error = EINVAL;
3114                         } else {
3115                                 SCTP_INP_RLOCK(inp);
3116                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3117                                 SCTP_INP_RUNLOCK(inp);
3118                         }
3119                         if (error == 0) {
3120                                 /* return the option value */
3121                                 *(int *)optval = onoff;
3122                                 *optsize = sizeof(int);
3123                         }
3124                         break;
3125                 }
3126         case SCTP_DEFAULT_SNDINFO:
3127                 {
3128                         struct sctp_sndinfo *info;
3129
3130                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3131                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3132
3133                         if (stcb) {
3134                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3135                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3136                                 info->snd_flags &= 0xfff0;
3137                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3138                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3139                                 SCTP_TCB_UNLOCK(stcb);
3140                         } else {
3141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3143                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3144                                         SCTP_INP_RLOCK(inp);
3145                                         info->snd_sid = inp->def_send.sinfo_stream;
3146                                         info->snd_flags = inp->def_send.sinfo_flags;
3147                                         info->snd_flags &= 0xfff0;
3148                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3149                                         info->snd_context = inp->def_send.sinfo_context;
3150                                         SCTP_INP_RUNLOCK(inp);
3151                                 } else {
3152                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3153                                         error = EINVAL;
3154                                 }
3155                         }
3156                         if (error == 0) {
3157                                 *optsize = sizeof(struct sctp_sndinfo);
3158                         }
3159                         break;
3160                 }
3161         case SCTP_DEFAULT_PRINFO:
3162                 {
3163                         struct sctp_default_prinfo *info;
3164
3165                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3166                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3167
3168                         if (stcb) {
3169                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3170                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3171                                 SCTP_TCB_UNLOCK(stcb);
3172                         } else {
3173                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3174                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3175                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3176                                         SCTP_INP_RLOCK(inp);
3177                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3178                                         info->pr_value = inp->def_send.sinfo_timetolive;
3179                                         SCTP_INP_RUNLOCK(inp);
3180                                 } else {
3181                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3182                                         error = EINVAL;
3183                                 }
3184                         }
3185                         if (error == 0) {
3186                                 *optsize = sizeof(struct sctp_default_prinfo);
3187                         }
3188                         break;
3189                 }
3190         case SCTP_PEER_ADDR_THLDS:
3191                 {
3192                         struct sctp_paddrthlds *thlds;
3193                         struct sctp_nets *net;
3194                         struct sockaddr *addr;
3195 #if defined(INET) && defined(INET6)
3196                         struct sockaddr_in sin_store;
3197 #endif
3198
3199                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3200                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3201
3202 #if defined(INET) && defined(INET6)
3203                         if (thlds->spt_address.ss_family == AF_INET6) {
3204                                 struct sockaddr_in6 *sin6;
3205
3206                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3207                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3208                                         in6_sin6_2_sin(&sin_store, sin6);
3209                                         addr = (struct sockaddr *)&sin_store;
3210                                 } else {
3211                                         addr = (struct sockaddr *)&thlds->spt_address;
3212                                 }
3213                         } else {
3214                                 addr = (struct sockaddr *)&thlds->spt_address;
3215                         }
3216 #else
3217                         addr = (struct sockaddr *)&thlds->spt_address;
3218 #endif
3219                         if (stcb != NULL) {
3220                                 net = sctp_findnet(stcb, addr);
3221                         } else {
3222                                 /*
3223                                  * We increment here since
3224                                  * sctp_findassociation_ep_addr() wil do a
3225                                  * decrement if it finds the stcb as long as
3226                                  * the locked tcb (last argument) is NOT a
3227                                  * TCB.. aka NULL.
3228                                  */
3229                                 net = NULL;
3230                                 SCTP_INP_INCR_REF(inp);
3231                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3232                                 if (stcb == NULL) {
3233                                         SCTP_INP_DECR_REF(inp);
3234                                 }
3235                         }
3236                         if ((stcb != NULL) && (net == NULL)) {
3237 #ifdef INET
3238                                 if (addr->sa_family == AF_INET) {
3239                                         struct sockaddr_in *sin;
3240
3241                                         sin = (struct sockaddr_in *)addr;
3242                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3243                                                 error = EINVAL;
3244                                                 SCTP_TCB_UNLOCK(stcb);
3245                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3246                                                 break;
3247                                         }
3248                                 } else
3249 #endif
3250 #ifdef INET6
3251                                 if (addr->sa_family == AF_INET6) {
3252                                         struct sockaddr_in6 *sin6;
3253
3254                                         sin6 = (struct sockaddr_in6 *)addr;
3255                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3256                                                 error = EINVAL;
3257                                                 SCTP_TCB_UNLOCK(stcb);
3258                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3259                                                 break;
3260                                         }
3261                                 } else
3262 #endif
3263                                 {
3264                                         error = EAFNOSUPPORT;
3265                                         SCTP_TCB_UNLOCK(stcb);
3266                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3267                                         break;
3268                                 }
3269                         }
3270
3271                         if (stcb != NULL) {
3272                                 if (net != NULL) {
3273                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3274                                         thlds->spt_pathpfthld = net->pf_threshold;
3275                                         thlds->spt_pathcpthld = 0xffff;
3276                                 } else {
3277                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3278                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3279                                         thlds->spt_pathcpthld = 0xffff;
3280                                 }
3281                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3282                                 SCTP_TCB_UNLOCK(stcb);
3283                         } else {
3284                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3285                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3286                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3287                                         /* Use endpoint defaults */
3288                                         SCTP_INP_RLOCK(inp);
3289                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3290                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3291                                         thlds->spt_pathcpthld = 0xffff;
3292                                         SCTP_INP_RUNLOCK(inp);
3293                                 } else {
3294                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3295                                         error = EINVAL;
3296                                 }
3297                         }
3298                         if (error == 0) {
3299                                 *optsize = sizeof(struct sctp_paddrthlds);
3300                         }
3301                         break;
3302                 }
3303         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3304                 {
3305                         struct sctp_udpencaps *encaps;
3306                         struct sctp_nets *net;
3307                         struct sockaddr *addr;
3308 #if defined(INET) && defined(INET6)
3309                         struct sockaddr_in sin_store;
3310 #endif
3311
3312                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3313                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3314
3315 #if defined(INET) && defined(INET6)
3316                         if (encaps->sue_address.ss_family == AF_INET6) {
3317                                 struct sockaddr_in6 *sin6;
3318
3319                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3320                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3321                                         in6_sin6_2_sin(&sin_store, sin6);
3322                                         addr = (struct sockaddr *)&sin_store;
3323                                 } else {
3324                                         addr = (struct sockaddr *)&encaps->sue_address;
3325                                 }
3326                         } else {
3327                                 addr = (struct sockaddr *)&encaps->sue_address;
3328                         }
3329 #else
3330                         addr = (struct sockaddr *)&encaps->sue_address;
3331 #endif
3332                         if (stcb) {
3333                                 net = sctp_findnet(stcb, addr);
3334                         } else {
3335                                 /*
3336                                  * We increment here since
3337                                  * sctp_findassociation_ep_addr() wil do a
3338                                  * decrement if it finds the stcb as long as
3339                                  * the locked tcb (last argument) is NOT a
3340                                  * TCB.. aka NULL.
3341                                  */
3342                                 net = NULL;
3343                                 SCTP_INP_INCR_REF(inp);
3344                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3345                                 if (stcb == NULL) {
3346                                         SCTP_INP_DECR_REF(inp);
3347                                 }
3348                         }
3349                         if ((stcb != NULL) && (net == NULL)) {
3350 #ifdef INET
3351                                 if (addr->sa_family == AF_INET) {
3352                                         struct sockaddr_in *sin;
3353
3354                                         sin = (struct sockaddr_in *)addr;
3355                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3356                                                 error = EINVAL;
3357                                                 SCTP_TCB_UNLOCK(stcb);
3358                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3359                                                 break;
3360                                         }
3361                                 } else
3362 #endif
3363 #ifdef INET6
3364                                 if (addr->sa_family == AF_INET6) {
3365                                         struct sockaddr_in6 *sin6;
3366
3367                                         sin6 = (struct sockaddr_in6 *)addr;
3368                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3369                                                 error = EINVAL;
3370                                                 SCTP_TCB_UNLOCK(stcb);
3371                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3372                                                 break;
3373                                         }
3374                                 } else
3375 #endif
3376                                 {
3377                                         error = EAFNOSUPPORT;
3378                                         SCTP_TCB_UNLOCK(stcb);
3379                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3380                                         break;
3381                                 }
3382                         }
3383
3384                         if (stcb != NULL) {
3385                                 if (net) {
3386                                         encaps->sue_port = net->port;
3387                                 } else {
3388                                         encaps->sue_port = stcb->asoc.port;
3389                                 }
3390                                 SCTP_TCB_UNLOCK(stcb);
3391                         } else {
3392                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3393                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3394                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3395                                         SCTP_INP_RLOCK(inp);
3396                                         encaps->sue_port = inp->sctp_ep.port;
3397                                         SCTP_INP_RUNLOCK(inp);
3398                                 } else {
3399                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3400                                         error = EINVAL;
3401                                 }
3402                         }
3403                         if (error == 0) {
3404                                 *optsize = sizeof(struct sctp_udpencaps);
3405                         }
3406                         break;
3407                 }
3408         case SCTP_ECN_SUPPORTED:
3409                 {
3410                         struct sctp_assoc_value *av;
3411
3412                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3413                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3414
3415                         if (stcb) {
3416                                 av->assoc_value = stcb->asoc.ecn_supported;
3417                                 SCTP_TCB_UNLOCK(stcb);
3418                         } else {
3419                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3420                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3421                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3422                                         SCTP_INP_RLOCK(inp);
3423                                         av->assoc_value = inp->ecn_supported;
3424                                         SCTP_INP_RUNLOCK(inp);
3425                                 } else {
3426                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3427                                         error = EINVAL;
3428                                 }
3429                         }
3430                         if (error == 0) {
3431                                 *optsize = sizeof(struct sctp_assoc_value);
3432                         }
3433                         break;
3434                 }
3435         case SCTP_PR_SUPPORTED:
3436                 {
3437                         struct sctp_assoc_value *av;
3438
3439                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3440                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3441
3442                         if (stcb) {
3443                                 av->assoc_value = stcb->asoc.prsctp_supported;
3444                                 SCTP_TCB_UNLOCK(stcb);
3445                         } else {
3446                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3447                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3448                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3449                                         SCTP_INP_RLOCK(inp);
3450                                         av->assoc_value = inp->prsctp_supported;
3451                                         SCTP_INP_RUNLOCK(inp);
3452                                 } else {
3453                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3454                                         error = EINVAL;
3455                                 }
3456                         }
3457                         if (error == 0) {
3458                                 *optsize = sizeof(struct sctp_assoc_value);
3459                         }
3460                         break;
3461                 }
3462         case SCTP_AUTH_SUPPORTED:
3463                 {
3464                         struct sctp_assoc_value *av;
3465
3466                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3467                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3468
3469                         if (stcb) {
3470                                 av->assoc_value = stcb->asoc.auth_supported;
3471                                 SCTP_TCB_UNLOCK(stcb);
3472                         } else {
3473                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3474                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3475                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3476                                         SCTP_INP_RLOCK(inp);
3477                                         av->assoc_value = inp->auth_supported;
3478                                         SCTP_INP_RUNLOCK(inp);
3479                                 } else {
3480                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3481                                         error = EINVAL;
3482                                 }
3483                         }
3484                         if (error == 0) {
3485                                 *optsize = sizeof(struct sctp_assoc_value);
3486                         }
3487                         break;
3488                 }
3489         case SCTP_ASCONF_SUPPORTED:
3490                 {
3491                         struct sctp_assoc_value *av;
3492
3493                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3494                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3495
3496                         if (stcb) {
3497                                 av->assoc_value = stcb->asoc.asconf_supported;
3498                                 SCTP_TCB_UNLOCK(stcb);
3499                         } else {
3500                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3501                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3502                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3503                                         SCTP_INP_RLOCK(inp);
3504                                         av->assoc_value = inp->asconf_supported;
3505                                         SCTP_INP_RUNLOCK(inp);
3506                                 } else {
3507                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3508                                         error = EINVAL;
3509                                 }
3510                         }
3511                         if (error == 0) {
3512                                 *optsize = sizeof(struct sctp_assoc_value);
3513                         }
3514                         break;
3515                 }
3516         case SCTP_RECONFIG_SUPPORTED:
3517                 {
3518                         struct sctp_assoc_value *av;
3519
3520                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3521                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3522
3523                         if (stcb) {
3524                                 av->assoc_value = stcb->asoc.reconfig_supported;
3525                                 SCTP_TCB_UNLOCK(stcb);
3526                         } else {
3527                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3528                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3529                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3530                                         SCTP_INP_RLOCK(inp);
3531                                         av->assoc_value = inp->reconfig_supported;
3532                                         SCTP_INP_RUNLOCK(inp);
3533                                 } else {
3534                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3535                                         error = EINVAL;
3536                                 }
3537                         }
3538                         if (error == 0) {
3539                                 *optsize = sizeof(struct sctp_assoc_value);
3540                         }
3541                         break;
3542                 }
3543         case SCTP_NRSACK_SUPPORTED:
3544                 {
3545                         struct sctp_assoc_value *av;
3546
3547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3548                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3549
3550                         if (stcb) {
3551                                 av->assoc_value = stcb->asoc.nrsack_supported;
3552                                 SCTP_TCB_UNLOCK(stcb);
3553                         } else {
3554                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3555                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3556                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3557                                         SCTP_INP_RLOCK(inp);
3558                                         av->assoc_value = inp->nrsack_supported;
3559                                         SCTP_INP_RUNLOCK(inp);
3560                                 } else {
3561                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3562                                         error = EINVAL;
3563                                 }
3564                         }
3565                         if (error == 0) {
3566                                 *optsize = sizeof(struct sctp_assoc_value);
3567                         }
3568                         break;
3569                 }
3570         case SCTP_PKTDROP_SUPPORTED:
3571                 {
3572                         struct sctp_assoc_value *av;
3573
3574                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3575                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3576
3577                         if (stcb) {
3578                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3579                                 SCTP_TCB_UNLOCK(stcb);
3580                         } else {
3581                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3582                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3583                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3584                                         SCTP_INP_RLOCK(inp);
3585                                         av->assoc_value = inp->pktdrop_supported;
3586                                         SCTP_INP_RUNLOCK(inp);
3587                                 } else {
3588                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3589                                         error = EINVAL;
3590                                 }
3591                         }
3592                         if (error == 0) {
3593                                 *optsize = sizeof(struct sctp_assoc_value);
3594                         }
3595                         break;
3596                 }
3597         case SCTP_ENABLE_STREAM_RESET:
3598                 {
3599                         struct sctp_assoc_value *av;
3600
3601                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3602                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3603
3604                         if (stcb) {
3605                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3606                                 SCTP_TCB_UNLOCK(stcb);
3607                         } else {
3608                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3609                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3610                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3611                                         SCTP_INP_RLOCK(inp);
3612                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3613                                         SCTP_INP_RUNLOCK(inp);
3614                                 } else {
3615                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3616                                         error = EINVAL;
3617                                 }
3618                         }
3619                         if (error == 0) {
3620                                 *optsize = sizeof(struct sctp_assoc_value);
3621                         }
3622                         break;
3623                 }
3624         case SCTP_PR_STREAM_STATUS:
3625                 {
3626                         struct sctp_prstatus *sprstat;
3627                         uint16_t sid;
3628                         uint16_t policy;
3629
3630                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3631                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3632
3633                         sid = sprstat->sprstat_sid;
3634                         policy = sprstat->sprstat_policy;
3635 #if defined(SCTP_DETAILED_STR_STATS)
3636                         if ((stcb != NULL) &&
3637                             (sid < stcb->asoc.streamoutcnt) &&
3638                             (policy != SCTP_PR_SCTP_NONE) &&
3639                             ((policy <= SCTP_PR_SCTP_MAX) ||
3640                             (policy == SCTP_PR_SCTP_ALL))) {
3641                                 if (policy == SCTP_PR_SCTP_ALL) {
3642                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3643                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3644                                 } else {
3645                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3646                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3647                                 }
3648 #else
3649                         if ((stcb != NULL) &&
3650                             (sid < stcb->asoc.streamoutcnt) &&
3651                             (policy == SCTP_PR_SCTP_ALL)) {
3652                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3653                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3654 #endif
3655                         } else {
3656                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3657                                 error = EINVAL;
3658                         }
3659                         if (stcb != NULL) {
3660                                 SCTP_TCB_UNLOCK(stcb);
3661                         }
3662                         if (error == 0) {
3663                                 *optsize = sizeof(struct sctp_prstatus);
3664                         }
3665                         break;
3666                 }
3667         case SCTP_PR_ASSOC_STATUS:
3668                 {
3669                         struct sctp_prstatus *sprstat;
3670                         uint16_t policy;
3671
3672                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3673                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3674
3675                         policy = sprstat->sprstat_policy;
3676                         if ((stcb != NULL) &&
3677                             (policy != SCTP_PR_SCTP_NONE) &&
3678                             ((policy <= SCTP_PR_SCTP_MAX) ||
3679                             (policy == SCTP_PR_SCTP_ALL))) {
3680                                 if (policy == SCTP_PR_SCTP_ALL) {
3681                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3682                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3683                                 } else {
3684                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3685                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3686                                 }
3687                         } else {
3688                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3689                                 error = EINVAL;
3690                         }
3691                         if (stcb != NULL) {
3692                                 SCTP_TCB_UNLOCK(stcb);
3693                         }
3694                         if (error == 0) {
3695                                 *optsize = sizeof(struct sctp_prstatus);
3696                         }
3697                         break;
3698                 }
3699         case SCTP_MAX_CWND:
3700                 {
3701                         struct sctp_assoc_value *av;
3702
3703                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3704                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3705
3706                         if (stcb) {
3707                                 av->assoc_value = stcb->asoc.max_cwnd;
3708                                 SCTP_TCB_UNLOCK(stcb);
3709                         } else {
3710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3712                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3713                                         SCTP_INP_RLOCK(inp);
3714                                         av->assoc_value = inp->max_cwnd;
3715                                         SCTP_INP_RUNLOCK(inp);
3716                                 } else {
3717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3718                                         error = EINVAL;
3719                                 }
3720                         }
3721                         if (error == 0) {
3722                                 *optsize = sizeof(struct sctp_assoc_value);
3723                         }
3724                         break;
3725                 }
3726         default:
3727                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3728                 error = ENOPROTOOPT;
3729                 break;
3730         }                       /* end switch (sopt->sopt_name) */
3731         if (error) {
3732                 *optsize = 0;
3733         }
3734         return (error);
3735 }
3736
3737 static int
3738 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3739     void *p)
3740 {
3741         int error, set_opt;
3742         uint32_t *mopt;
3743         struct sctp_tcb *stcb = NULL;
3744         struct sctp_inpcb *inp = NULL;
3745         uint32_t vrf_id;
3746
3747         if (optval == NULL) {
3748                 SCTP_PRINTF("optval is NULL\n");
3749                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3750                 return (EINVAL);
3751         }
3752         inp = (struct sctp_inpcb *)so->so_pcb;
3753         if (inp == NULL) {
3754                 SCTP_PRINTF("inp is NULL?\n");
3755                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3756                 return (EINVAL);
3757         }
3758         vrf_id = inp->def_vrf_id;
3759
3760         error = 0;
3761         switch (optname) {
3762         case SCTP_NODELAY:
3763         case SCTP_AUTOCLOSE:
3764         case SCTP_AUTO_ASCONF:
3765         case SCTP_EXPLICIT_EOR:
3766         case SCTP_DISABLE_FRAGMENTS:
3767         case SCTP_USE_EXT_RCVINFO:
3768         case SCTP_I_WANT_MAPPED_V4_ADDR:
3769                 /* copy in the option value */
3770                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3771                 set_opt = 0;
3772                 if (error)
3773                         break;
3774                 switch (optname) {
3775                 case SCTP_DISABLE_FRAGMENTS:
3776                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3777                         break;
3778                 case SCTP_AUTO_ASCONF:
3779                         /*
3780                          * NOTE: we don't really support this flag
3781                          */
3782                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3783                                 /* only valid for bound all sockets */
3784                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3785                                     (*mopt != 0)) {
3786                                         /* forbidden by admin */
3787                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3788                                         return (EPERM);
3789                                 }
3790                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3791                         } else {
3792                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3793                                 return (EINVAL);
3794                         }
3795                         break;
3796                 case SCTP_EXPLICIT_EOR:
3797                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3798                         break;
3799                 case SCTP_USE_EXT_RCVINFO:
3800                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3801                         break;
3802                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3803                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3804                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3805                         } else {
3806                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3807                                 return (EINVAL);
3808                         }
3809                         break;
3810                 case SCTP_NODELAY:
3811                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3812                         break;
3813                 case SCTP_AUTOCLOSE:
3814                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3815                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3816                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3817                                 return (EINVAL);
3818                         }
3819                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3820                         /*
3821                          * The value is in ticks. Note this does not effect
3822                          * old associations, only new ones.
3823                          */
3824                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3825                         break;
3826                 }
3827                 SCTP_INP_WLOCK(inp);
3828                 if (*mopt != 0) {
3829                         sctp_feature_on(inp, set_opt);
3830                 } else {
3831                         sctp_feature_off(inp, set_opt);
3832                 }
3833                 SCTP_INP_WUNLOCK(inp);
3834                 break;
3835         case SCTP_REUSE_PORT:
3836                 {
3837                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3838                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3839                                 /* Can't set it after we are bound */
3840                                 error = EINVAL;
3841                                 break;
3842                         }
3843                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3844                                 /* Can't do this for a 1-m socket */
3845                                 error = EINVAL;
3846                                 break;
3847                         }
3848                         if (optval)
3849                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3850                         else
3851                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3852                         break;
3853                 }
3854         case SCTP_PARTIAL_DELIVERY_POINT:
3855                 {
3856                         uint32_t *value;
3857
3858                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3859                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3860                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3861                                 error = EINVAL;
3862                                 break;
3863                         }
3864                         inp->partial_delivery_point = *value;
3865                         break;
3866                 }
3867         case SCTP_FRAGMENT_INTERLEAVE:
3868                 /* not yet until we re-write sctp_recvmsg() */
3869                 {
3870                         uint32_t *level;
3871
3872                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3873                         if (*level == SCTP_FRAG_LEVEL_2) {
3874                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3875                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3876                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3877                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3878                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3879                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3880                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3882
3883                         } else {
3884                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3885                                 error = EINVAL;
3886                         }
3887                         break;
3888                 }
3889         case SCTP_INTERLEAVING_SUPPORTED:
3890                 {
3891                         struct sctp_assoc_value *av;
3892
3893                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3894                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3895
3896                         if (stcb) {
3897                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3898                                 error = EINVAL;
3899                                 SCTP_TCB_UNLOCK(stcb);
3900                         } else {
3901                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3902                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3903                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3904                                         SCTP_INP_WLOCK(inp);
3905                                         if (av->assoc_value == 0) {
3906                                                 inp->idata_supported = 0;
3907                                         } else {
3908                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3909                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3910                                                         inp->idata_supported = 1;
3911                                                 } else {
3912                                                         /*
3913                                                          * Must have Frag
3914                                                          * interleave and
3915                                                          * stream interleave
3916                                                          * on
3917                                                          */
3918                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3919                                                         error = EINVAL;
3920                                                 }
3921                                         }
3922                                         SCTP_INP_WUNLOCK(inp);
3923                                 } else {
3924                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3925                                         error = EINVAL;
3926                                 }
3927                         }
3928                         break;
3929                 }
3930         case SCTP_CMT_ON_OFF:
3931                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3932                         struct sctp_assoc_value *av;
3933
3934                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3935                         if (av->assoc_value > SCTP_CMT_MAX) {
3936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3937                                 error = EINVAL;
3938                                 break;
3939                         }
3940                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3941                         if (stcb) {
3942                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3943                                 SCTP_TCB_UNLOCK(stcb);
3944                         } else {
3945                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3946                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3947                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3948                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3949                                         SCTP_INP_WLOCK(inp);
3950                                         inp->sctp_cmt_on_off = av->assoc_value;
3951                                         SCTP_INP_WUNLOCK(inp);
3952                                 }
3953                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3954                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3955                                         SCTP_INP_RLOCK(inp);
3956                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3957                                                 SCTP_TCB_LOCK(stcb);
3958                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3959                                                 SCTP_TCB_UNLOCK(stcb);
3960                                         }
3961                                         SCTP_INP_RUNLOCK(inp);
3962                                 }
3963                         }
3964                 } else {
3965                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3966                         error = ENOPROTOOPT;
3967                 }
3968                 break;
3969         case SCTP_PLUGGABLE_CC:
3970                 {
3971                         struct sctp_assoc_value *av;
3972                         struct sctp_nets *net;
3973
3974                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3975                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3976                             (av->assoc_value != SCTP_CC_HSTCP) &&
3977                             (av->assoc_value != SCTP_CC_HTCP) &&
3978                             (av->assoc_value != SCTP_CC_RTCC)) {
3979                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3980                                 error = EINVAL;
3981                                 break;
3982                         }
3983                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3984                         if (stcb) {
3985                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3986                                 stcb->asoc.congestion_control_module = av->assoc_value;
3987                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3988                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3989                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3990                                         }
3991                                 }
3992                                 SCTP_TCB_UNLOCK(stcb);
3993                         } else {
3994                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3995                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3996                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3997                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3998                                         SCTP_INP_WLOCK(inp);
3999                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4000                                         SCTP_INP_WUNLOCK(inp);
4001                                 }
4002                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4003                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4004                                         SCTP_INP_RLOCK(inp);
4005                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4006                                                 SCTP_TCB_LOCK(stcb);
4007                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4008                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4009                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4010                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4011                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4012                                                         }
4013                                                 }
4014                                                 SCTP_TCB_UNLOCK(stcb);
4015                                         }
4016                                         SCTP_INP_RUNLOCK(inp);
4017                                 }
4018                         }
4019                         break;
4020                 }
4021         case SCTP_CC_OPTION:
4022                 {
4023                         struct sctp_cc_option *cc_opt;
4024
4025                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4026                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4027                         if (stcb == NULL) {
4028                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4029                                         SCTP_INP_RLOCK(inp);
4030                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4031                                                 SCTP_TCB_LOCK(stcb);
4032                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4033                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4034                                                 }
4035                                                 SCTP_TCB_UNLOCK(stcb);
4036                                         }
4037                                         SCTP_INP_RUNLOCK(inp);
4038                                 } else {
4039                                         error = EINVAL;
4040                                 }
4041                         } else {
4042                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4043                                         error = ENOTSUP;
4044                                 } else {
4045                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4046                                             cc_opt);
4047                                 }
4048                                 SCTP_TCB_UNLOCK(stcb);
4049                         }
4050                         break;
4051                 }
4052         case SCTP_PLUGGABLE_SS:
4053                 {
4054                         struct sctp_assoc_value *av;
4055
4056                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4057                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4058                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4059                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4060                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4061                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4062                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4063                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4064                                 error = EINVAL;
4065                                 break;
4066                         }
4067                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4068                         if (stcb) {
4069                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4070                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4071                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4072                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4073                                 SCTP_TCB_UNLOCK(stcb);
4074                         } else {
4075                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4076                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4077                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4078                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4079                                         SCTP_INP_WLOCK(inp);
4080                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4081                                         SCTP_INP_WUNLOCK(inp);
4082                                 }
4083                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4084                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4085                                         SCTP_INP_RLOCK(inp);
4086                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4087                                                 SCTP_TCB_LOCK(stcb);
4088                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4089                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4090                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4091                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4092                                                 SCTP_TCB_UNLOCK(stcb);
4093                                         }
4094                                         SCTP_INP_RUNLOCK(inp);
4095                                 }
4096                         }
4097                         break;
4098                 }
4099         case SCTP_SS_VALUE:
4100                 {
4101                         struct sctp_stream_value *av;
4102
4103                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4104                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4105                         if (stcb) {
4106                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4107                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4108                                     av->stream_value) < 0)) {
4109                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4110                                         error = EINVAL;
4111                                 }
4112                                 SCTP_TCB_UNLOCK(stcb);
4113                         } else {
4114                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4115                                         SCTP_INP_RLOCK(inp);
4116                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4117                                                 SCTP_TCB_LOCK(stcb);
4118                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4119                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4120                                                             &stcb->asoc,
4121                                                             &stcb->asoc.strmout[av->stream_id],
4122                                                             av->stream_value);
4123                                                 }
4124                                                 SCTP_TCB_UNLOCK(stcb);
4125                                         }
4126                                         SCTP_INP_RUNLOCK(inp);
4127                                 } else {
4128                                         /*
4129                                          * Can't set stream value without
4130                                          * association
4131                                          */
4132                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4133                                         error = EINVAL;
4134                                 }
4135                         }
4136                         break;
4137                 }
4138         case SCTP_CLR_STAT_LOG:
4139                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4140                 error = EOPNOTSUPP;
4141                 break;
4142         case SCTP_CONTEXT:
4143                 {
4144                         struct sctp_assoc_value *av;
4145
4146                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4147                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4148
4149                         if (stcb) {
4150                                 stcb->asoc.context = av->assoc_value;
4151                                 SCTP_TCB_UNLOCK(stcb);
4152                         } else {
4153                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4154                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4155                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4156                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4157                                         SCTP_INP_WLOCK(inp);
4158                                         inp->sctp_context = av->assoc_value;
4159                                         SCTP_INP_WUNLOCK(inp);
4160                                 }
4161                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4162                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4163                                         SCTP_INP_RLOCK(inp);
4164                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4165                                                 SCTP_TCB_LOCK(stcb);
4166                                                 stcb->asoc.context = av->assoc_value;
4167                                                 SCTP_TCB_UNLOCK(stcb);
4168                                         }
4169                                         SCTP_INP_RUNLOCK(inp);
4170                                 }
4171                         }
4172                         break;
4173                 }
4174         case SCTP_VRF_ID:
4175                 {
4176                         uint32_t *default_vrfid;
4177
4178                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4179                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4180                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4181                                 error = EINVAL;
4182                                 break;
4183                         }
4184                         inp->def_vrf_id = *default_vrfid;
4185                         break;
4186                 }
4187         case SCTP_DEL_VRF_ID:
4188                 {
4189                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4190                         error = EOPNOTSUPP;
4191                         break;
4192                 }
4193         case SCTP_ADD_VRF_ID:
4194                 {
4195                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4196                         error = EOPNOTSUPP;
4197                         break;
4198                 }
4199         case SCTP_DELAYED_SACK:
4200                 {
4201                         struct sctp_sack_info *sack;
4202
4203                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4204                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4205                         if (sack->sack_delay) {
4206                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4207                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4208                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4209                                         sack->sack_delay = TICKS_TO_MSEC(1);
4210                                 }
4211                         }
4212                         if (stcb) {
4213                                 if (sack->sack_delay) {
4214                                         stcb->asoc.delayed_ack = sack->sack_delay;
4215                                 }
4216                                 if (sack->sack_freq) {
4217                                         stcb->asoc.sack_freq = sack->sack_freq;
4218                                 }
4219                                 SCTP_TCB_UNLOCK(stcb);
4220                         } else {
4221                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4222                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4223                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4224                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4225                                         SCTP_INP_WLOCK(inp);
4226                                         if (sack->sack_delay) {
4227                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4228                                         }
4229                                         if (sack->sack_freq) {
4230                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4231                                         }
4232                                         SCTP_INP_WUNLOCK(inp);
4233                                 }
4234                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4235                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4236                                         SCTP_INP_RLOCK(inp);
4237                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4238                                                 SCTP_TCB_LOCK(stcb);
4239                                                 if (sack->sack_delay) {
4240                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4241                                                 }
4242                                                 if (sack->sack_freq) {
4243                                                         stcb->asoc.sack_freq = sack->sack_freq;
4244                                                 }
4245                                                 SCTP_TCB_UNLOCK(stcb);
4246                                         }
4247                                         SCTP_INP_RUNLOCK(inp);
4248                                 }
4249                         }
4250                         break;
4251                 }
4252         case SCTP_AUTH_CHUNK:
4253                 {
4254                         struct sctp_authchunk *sauth;
4255
4256                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4257
4258                         SCTP_INP_WLOCK(inp);
4259                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4260                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4261                                 error = EINVAL;
4262                         } else {
4263                                 inp->auth_supported = 1;
4264                         }
4265                         SCTP_INP_WUNLOCK(inp);
4266                         break;
4267                 }
4268         case SCTP_AUTH_KEY:
4269                 {
4270                         struct sctp_authkey *sca;
4271                         struct sctp_keyhead *shared_keys;
4272                         sctp_sharedkey_t *shared_key;
4273                         sctp_key_t *key = NULL;
4274                         size_t size;
4275
4276                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4277                         if (sca->sca_keylength == 0) {
4278                                 size = optsize - sizeof(struct sctp_authkey);
4279                         } else {
4280                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4281                                         size = sca->sca_keylength;
4282                                 } else {
4283                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4284                                         error = EINVAL;
4285                                         break;
4286                                 }
4287                         }
4288                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4289
4290                         if (stcb) {
4291                                 shared_keys = &stcb->asoc.shared_keys;
4292                                 /* clear the cached keys for this key id */
4293                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4294                                 /*
4295                                  * create the new shared key and
4296                                  * insert/replace it
4297                                  */
4298                                 if (size > 0) {
4299                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4300                                         if (key == NULL) {
4301                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4302                                                 error = ENOMEM;
4303                                                 SCTP_TCB_UNLOCK(stcb);
4304                                                 break;
4305                                         }
4306                                 }
4307                                 shared_key = sctp_alloc_sharedkey();
4308                                 if (shared_key == NULL) {
4309                                         sctp_free_key(key);
4310                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4311                                         error = ENOMEM;
4312                                         SCTP_TCB_UNLOCK(stcb);
4313                                         break;
4314                                 }
4315                                 shared_key->key = key;
4316                                 shared_key->keyid = sca->sca_keynumber;
4317                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4318                                 SCTP_TCB_UNLOCK(stcb);
4319                         } else {
4320                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4321                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4322                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4323                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4324                                         SCTP_INP_WLOCK(inp);
4325                                         shared_keys = &inp->sctp_ep.shared_keys;
4326                                         /*
4327                                          * clear the cached keys on all
4328                                          * assocs for this key id
4329                                          */
4330                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4331                                         /*
4332                                          * create the new shared key and
4333                                          * insert/replace it
4334                                          */
4335                                         if (size > 0) {
4336                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4337                                                 if (key == NULL) {
4338                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4339                                                         error = ENOMEM;
4340                                                         SCTP_INP_WUNLOCK(inp);
4341                                                         break;
4342                                                 }
4343                                         }
4344                                         shared_key = sctp_alloc_sharedkey();
4345                                         if (shared_key == NULL) {
4346                                                 sctp_free_key(key);
4347                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4348                                                 error = ENOMEM;
4349                                                 SCTP_INP_WUNLOCK(inp);
4350                                                 break;
4351                                         }
4352                                         shared_key->key = key;
4353                                         shared_key->keyid = sca->sca_keynumber;
4354                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4355                                         SCTP_INP_WUNLOCK(inp);
4356                                 }
4357                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4358                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4359                                         SCTP_INP_RLOCK(inp);
4360                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4361                                                 SCTP_TCB_LOCK(stcb);
4362                                                 shared_keys = &stcb->asoc.shared_keys;
4363                                                 /*
4364                                                  * clear the cached keys for
4365                                                  * this key id
4366                                                  */
4367                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4368                                                 /*
4369                                                  * create the new shared key
4370                                                  * and insert/replace it
4371                                                  */
4372                                                 if (size > 0) {
4373                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4374                                                         if (key == NULL) {
4375                                                                 SCTP_TCB_UNLOCK(stcb);
4376                                                                 continue;
4377                                                         }
4378                                                 }
4379                                                 shared_key = sctp_alloc_sharedkey();
4380                                                 if (shared_key == NULL) {
4381                                                         sctp_free_key(key);
4382                                                         SCTP_TCB_UNLOCK(stcb);
4383                                                         continue;
4384                                                 }
4385                                                 shared_key->key = key;
4386                                                 shared_key->keyid = sca->sca_keynumber;
4387                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4388                                                 SCTP_TCB_UNLOCK(stcb);
4389                                         }
4390                                         SCTP_INP_RUNLOCK(inp);
4391                                 }
4392                         }
4393                         break;
4394                 }
4395         case SCTP_HMAC_IDENT:
4396                 {
4397                         struct sctp_hmacalgo *shmac;
4398                         sctp_hmaclist_t *hmaclist;
4399                         uint16_t hmacid;
4400                         uint32_t i;
4401
4402                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4403                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4404                             (shmac->shmac_number_of_idents > 0xffff)) {
4405                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4406                                 error = EINVAL;
4407                                 break;
4408                         }
4409
4410                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4411                         if (hmaclist == NULL) {
4412                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4413                                 error = ENOMEM;
4414                                 break;
4415                         }
4416                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4417                                 hmacid = shmac->shmac_idents[i];
4418                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4419                                          /* invalid HMACs were found */ ;
4420                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4421                                         error = EINVAL;
4422                                         sctp_free_hmaclist(hmaclist);
4423                                         goto sctp_set_hmac_done;
4424                                 }
4425                         }
4426                         for (i = 0; i < hmaclist->num_algo; i++) {
4427                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4428                                         /* already in list */
4429                                         break;
4430                                 }
4431                         }
4432                         if (i == hmaclist->num_algo) {
4433                                 /* not found in list */
4434                                 sctp_free_hmaclist(hmaclist);
4435                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4436                                 error = EINVAL;
4437                                 break;
4438                         }
4439                         /* set it on the endpoint */
4440                         SCTP_INP_WLOCK(inp);
4441                         if (inp->sctp_ep.local_hmacs)
4442                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4443                         inp->sctp_ep.local_hmacs = hmaclist;
4444                         SCTP_INP_WUNLOCK(inp);
4445         sctp_set_hmac_done:
4446                         break;
4447                 }
4448         case SCTP_AUTH_ACTIVE_KEY:
4449                 {
4450                         struct sctp_authkeyid *scact;
4451
4452                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4453                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4454
4455                         /* set the active key on the right place */
4456                         if (stcb) {
4457                                 /* set the active key on the assoc */
4458                                 if (sctp_auth_setactivekey(stcb,
4459                                     scact->scact_keynumber)) {
4460                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4461                                             SCTP_FROM_SCTP_USRREQ,
4462                                             EINVAL);
4463                                         error = EINVAL;
4464                                 }
4465                                 SCTP_TCB_UNLOCK(stcb);
4466                         } else {
4467                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4468                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4469                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4470                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4471                                         SCTP_INP_WLOCK(inp);
4472                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4473                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4474                                                 error = EINVAL;
4475                                         }
4476                                         SCTP_INP_WUNLOCK(inp);
4477                                 }
4478                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4479                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4480                                         SCTP_INP_RLOCK(inp);
4481                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4482                                                 SCTP_TCB_LOCK(stcb);
4483                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4484                                                 SCTP_TCB_UNLOCK(stcb);
4485                                         }
4486                                         SCTP_INP_RUNLOCK(inp);
4487                                 }
4488                         }
4489                         break;
4490                 }
4491         case SCTP_AUTH_DELETE_KEY:
4492                 {
4493                         struct sctp_authkeyid *scdel;
4494
4495                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4496                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4497
4498                         /* delete the key from the right place */
4499                         if (stcb) {
4500                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4501                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4502                                         error = EINVAL;
4503                                 }
4504                                 SCTP_TCB_UNLOCK(stcb);
4505                         } else {
4506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4508                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4509                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4510                                         SCTP_INP_WLOCK(inp);
4511                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4512                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4513                                                 error = EINVAL;
4514                                         }
4515                                         SCTP_INP_WUNLOCK(inp);
4516                                 }
4517                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4518                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4519                                         SCTP_INP_RLOCK(inp);
4520                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4521                                                 SCTP_TCB_LOCK(stcb);
4522                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4523                                                 SCTP_TCB_UNLOCK(stcb);
4524                                         }
4525                                         SCTP_INP_RUNLOCK(inp);
4526                                 }
4527                         }
4528                         break;
4529                 }
4530         case SCTP_AUTH_DEACTIVATE_KEY:
4531                 {
4532                         struct sctp_authkeyid *keyid;
4533
4534                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4535                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4536
4537                         /* deactivate the key from the right place */
4538                         if (stcb) {
4539                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4541                                         error = EINVAL;
4542                                 }
4543                                 SCTP_TCB_UNLOCK(stcb);
4544                         } else {
4545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4547                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4548                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4549                                         SCTP_INP_WLOCK(inp);
4550                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4551                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4552                                                 error = EINVAL;
4553                                         }
4554                                         SCTP_INP_WUNLOCK(inp);
4555                                 }
4556                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4557                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4558                                         SCTP_INP_RLOCK(inp);
4559                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4560                                                 SCTP_TCB_LOCK(stcb);
4561                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4562                                                 SCTP_TCB_UNLOCK(stcb);
4563                                         }
4564                                         SCTP_INP_RUNLOCK(inp);
4565                                 }
4566                         }
4567                         break;
4568                 }
4569         case SCTP_ENABLE_STREAM_RESET:
4570                 {
4571                         struct sctp_assoc_value *av;
4572
4573                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4574                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4575                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4576                                 error = EINVAL;
4577                                 break;
4578                         }
4579                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4580                         if (stcb) {
4581                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4582                                 SCTP_TCB_UNLOCK(stcb);
4583                         } else {
4584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4586                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4587                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4588                                         SCTP_INP_WLOCK(inp);
4589                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4590                                         SCTP_INP_WUNLOCK(inp);
4591                                 }
4592                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4593                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4594                                         SCTP_INP_RLOCK(inp);
4595                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4596                                                 SCTP_TCB_LOCK(stcb);
4597                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4598                                                 SCTP_TCB_UNLOCK(stcb);
4599                                         }
4600                                         SCTP_INP_RUNLOCK(inp);
4601                                 }
4602
4603                         }
4604                         break;
4605                 }
4606         case SCTP_RESET_STREAMS:
4607                 {
4608                         struct sctp_reset_streams *strrst;
4609                         int i, send_out = 0;
4610                         int send_in = 0;
4611
4612                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4613                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4614                         if (stcb == NULL) {
4615                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4616                                 error = ENOENT;
4617                                 break;
4618                         }
4619                         if (stcb->asoc.reconfig_supported == 0) {
4620                                 /*
4621                                  * Peer does not support the chunk type.
4622                                  */
4623                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4624                                 error = EOPNOTSUPP;
4625                                 SCTP_TCB_UNLOCK(stcb);
4626                                 break;
4627                         }
4628                         if (sizeof(struct sctp_reset_streams) +
4629                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4630                                 error = EINVAL;
4631                                 SCTP_TCB_UNLOCK(stcb);
4632                                 break;
4633                         }
4634                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4635                                 send_in = 1;
4636                                 if (stcb->asoc.stream_reset_outstanding) {
4637                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4638                                         error = EALREADY;
4639                                         SCTP_TCB_UNLOCK(stcb);
4640                                         break;
4641                                 }
4642                         }
4643                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4644                                 send_out = 1;
4645                         }
4646                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4647                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4648                                 error = ENOMEM;
4649                                 SCTP_TCB_UNLOCK(stcb);
4650                                 break;
4651                         }
4652                         if ((send_in == 0) && (send_out == 0)) {
4653                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4654                                 error = EINVAL;
4655                                 SCTP_TCB_UNLOCK(stcb);
4656                                 break;
4657                         }
4658                         for (i = 0; i < strrst->srs_number_streams; i++) {
4659                                 if ((send_in) &&
4660                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4661                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4662                                         error = EINVAL;
4663                                         break;
4664                                 }
4665                                 if ((send_out) &&
4666                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4667                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4668                                         error = EINVAL;
4669                                         break;
4670                                 }
4671                         }
4672                         if (error) {
4673                                 SCTP_TCB_UNLOCK(stcb);
4674                                 break;
4675                         }
4676                         if (send_out) {
4677                                 int cnt;
4678                                 uint16_t strm;
4679
4680                                 if (strrst->srs_number_streams) {
4681                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4682                                                 strm = strrst->srs_stream_list[i];
4683                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4684                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4685                                                         cnt++;
4686                                                 }
4687                                         }
4688                                 } else {
4689                                         /* Its all */
4690                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4691                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4692                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4693                                                         cnt++;
4694                                                 }
4695                                         }
4696                                 }
4697                         }
4698                         if (send_in) {
4699                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4700                                     strrst->srs_stream_list,
4701                                     send_in, 0, 0, 0, 0, 0);
4702                         } else {
4703                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4704                         }
4705                         if (error == 0) {
4706                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4707                         } else {
4708                                 /*
4709                                  * For outgoing streams don't report any
4710                                  * problems in sending the request to the
4711                                  * application. XXX: Double check resetting
4712                                  * incoming streams.
4713                                  */
4714                                 error = 0;
4715                         }
4716                         SCTP_TCB_UNLOCK(stcb);
4717                         break;
4718                 }
4719         case SCTP_ADD_STREAMS:
4720                 {
4721                         struct sctp_add_streams *stradd;
4722                         uint8_t addstream = 0;
4723                         uint16_t add_o_strmcnt = 0;
4724                         uint16_t add_i_strmcnt = 0;
4725
4726                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4727                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4728                         if (stcb == NULL) {
4729                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4730                                 error = ENOENT;
4731                                 break;
4732                         }
4733                         if (stcb->asoc.reconfig_supported == 0) {
4734                                 /*
4735                                  * Peer does not support the chunk type.
4736                                  */
4737                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4738                                 error = EOPNOTSUPP;
4739                                 SCTP_TCB_UNLOCK(stcb);
4740                                 break;
4741                         }
4742                         if (stcb->asoc.stream_reset_outstanding) {
4743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4744                                 error = EALREADY;
4745                                 SCTP_TCB_UNLOCK(stcb);
4746                                 break;
4747                         }
4748                         if ((stradd->sas_outstrms == 0) &&
4749                             (stradd->sas_instrms == 0)) {
4750                                 error = EINVAL;
4751                                 goto skip_stuff;
4752                         }
4753                         if (stradd->sas_outstrms) {
4754                                 addstream = 1;
4755                                 /* We allocate here */
4756                                 add_o_strmcnt = stradd->sas_outstrms;
4757                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4758                                         /* You can't have more than 64k */
4759                                         error = EINVAL;
4760                                         goto skip_stuff;
4761                                 }
4762                         }
4763                         if (stradd->sas_instrms) {
4764                                 int cnt;
4765
4766                                 addstream |= 2;
4767                                 /*
4768                                  * We allocate inside
4769                                  * sctp_send_str_reset_req()
4770                                  */
4771                                 add_i_strmcnt = stradd->sas_instrms;
4772                                 cnt = add_i_strmcnt;
4773                                 cnt += stcb->asoc.streamincnt;
4774                                 if (cnt > 0x0000ffff) {
4775                                         /* You can't have more than 64k */
4776                                         error = EINVAL;
4777                                         goto skip_stuff;
4778                                 }
4779                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4780                                         /* More than you are allowed */
4781                                         error = EINVAL;
4782                                         goto skip_stuff;
4783                                 }
4784                         }
4785                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4786                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4787         skip_stuff:
4788                         SCTP_TCB_UNLOCK(stcb);
4789                         break;
4790                 }
4791         case SCTP_RESET_ASSOC:
4792                 {
4793                         int i;
4794                         uint32_t *value;
4795
4796                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4797                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4798                         if (stcb == NULL) {
4799                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4800                                 error = ENOENT;
4801                                 break;
4802                         }
4803                         if (stcb->asoc.reconfig_supported == 0) {
4804                                 /*
4805                                  * Peer does not support the chunk type.
4806                                  */
4807                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4808                                 error = EOPNOTSUPP;
4809                                 SCTP_TCB_UNLOCK(stcb);
4810                                 break;
4811                         }
4812                         if (stcb->asoc.stream_reset_outstanding) {
4813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4814                                 error = EALREADY;
4815                                 SCTP_TCB_UNLOCK(stcb);
4816                                 break;
4817                         }
4818                         /*
4819                          * Is there any data pending in the send or sent
4820                          * queues?
4821                          */
4822                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4823                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4824                 busy_out:
4825                                 error = EBUSY;
4826                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4827                                 SCTP_TCB_UNLOCK(stcb);
4828                                 break;
4829                         }
4830                         /* Do any streams have data queued? */
4831                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4832                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4833                                         goto busy_out;
4834                                 }
4835                         }
4836                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4837                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4838                         SCTP_TCB_UNLOCK(stcb);
4839                         break;
4840                 }
4841         case SCTP_CONNECT_X:
4842                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4843                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4844                         error = EINVAL;
4845                         break;
4846                 }
4847                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4848                 break;
4849         case SCTP_CONNECT_X_DELAYED:
4850                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4851                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4852                         error = EINVAL;
4853                         break;
4854                 }
4855                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4856                 break;
4857         case SCTP_CONNECT_X_COMPLETE:
4858                 {
4859                         struct sockaddr *sa;
4860
4861                         /* FIXME MT: check correct? */
4862                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4863
4864                         /* find tcb */
4865                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4866                                 SCTP_INP_RLOCK(inp);
4867                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4868                                 if (stcb) {
4869                                         SCTP_TCB_LOCK(stcb);
4870                                 }
4871                                 SCTP_INP_RUNLOCK(inp);
4872                         } else {
4873                                 /*
4874                                  * We increment here since
4875                                  * sctp_findassociation_ep_addr() wil do a
4876                                  * decrement if it finds the stcb as long as
4877                                  * the locked tcb (last argument) is NOT a
4878                                  * TCB.. aka NULL.
4879                                  */
4880                                 SCTP_INP_INCR_REF(inp);
4881                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4882                                 if (stcb == NULL) {
4883                                         SCTP_INP_DECR_REF(inp);
4884                                 }
4885                         }
4886
4887                         if (stcb == NULL) {
4888                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4889                                 error = ENOENT;
4890                                 break;
4891                         }
4892                         if (stcb->asoc.delayed_connection == 1) {
4893                                 stcb->asoc.delayed_connection = 0;
4894                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4895                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4896                                     stcb->asoc.primary_destination,
4897                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4898                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4899                         } else {
4900                                 /*
4901                                  * already expired or did not use delayed
4902                                  * connectx
4903                                  */
4904                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4905                                 error = EALREADY;
4906                         }
4907                         SCTP_TCB_UNLOCK(stcb);
4908                         break;
4909                 }
4910         case SCTP_MAX_BURST:
4911                 {
4912                         struct sctp_assoc_value *av;
4913
4914                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4915                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4916
4917                         if (stcb) {
4918                                 stcb->asoc.max_burst = av->assoc_value;
4919                                 SCTP_TCB_UNLOCK(stcb);
4920                         } else {
4921                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4922                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4923                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4924                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4925                                         SCTP_INP_WLOCK(inp);
4926                                         inp->sctp_ep.max_burst = av->assoc_value;
4927                                         SCTP_INP_WUNLOCK(inp);
4928                                 }
4929                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4930                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4931                                         SCTP_INP_RLOCK(inp);
4932                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4933                                                 SCTP_TCB_LOCK(stcb);
4934                                                 stcb->asoc.max_burst = av->assoc_value;
4935                                                 SCTP_TCB_UNLOCK(stcb);
4936                                         }
4937                                         SCTP_INP_RUNLOCK(inp);
4938                                 }
4939                         }
4940                         break;
4941                 }
4942         case SCTP_MAXSEG:
4943                 {
4944                         struct sctp_assoc_value *av;
4945                         int ovh;
4946
4947                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4948                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4949
4950                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4951                                 ovh = SCTP_MED_OVERHEAD;
4952                         } else {
4953                                 ovh = SCTP_MED_V4_OVERHEAD;
4954                         }
4955                         if (stcb) {
4956                                 if (av->assoc_value) {
4957                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4958                                 } else {
4959                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4960                                 }
4961                                 SCTP_TCB_UNLOCK(stcb);
4962                         } else {
4963                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4964                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4965                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4966                                         SCTP_INP_WLOCK(inp);
4967                                         /*
4968                                          * FIXME MT: I think this is not in
4969                                          * tune with the API ID
4970                                          */
4971                                         if (av->assoc_value) {
4972                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4973                                         } else {
4974                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4975                                         }
4976                                         SCTP_INP_WUNLOCK(inp);
4977                                 } else {
4978                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4979                                         error = EINVAL;
4980                                 }
4981                         }
4982                         break;
4983                 }
4984         case SCTP_EVENTS:
4985                 {
4986                         struct sctp_event_subscribe *events;
4987
4988                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4989
4990                         SCTP_INP_WLOCK(inp);
4991                         if (events->sctp_data_io_event) {
4992                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4993                         } else {
4994                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4995                         }
4996
4997                         if (events->sctp_association_event) {
4998                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4999                         } else {
5000                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5001                         }
5002
5003                         if (events->sctp_address_event) {
5004                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5005                         } else {
5006                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5007                         }
5008
5009                         if (events->sctp_send_failure_event) {
5010                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5011                         } else {
5012                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5013                         }
5014
5015                         if (events->sctp_peer_error_event) {
5016                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5017                         } else {
5018                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5019                         }
5020
5021                         if (events->sctp_shutdown_event) {
5022                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5023                         } else {
5024                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5025                         }
5026
5027                         if (events->sctp_partial_delivery_event) {
5028                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5029                         } else {
5030                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5031                         }
5032
5033                         if (events->sctp_adaptation_layer_event) {
5034                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5035                         } else {
5036                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5037                         }
5038
5039                         if (events->sctp_authentication_event) {
5040                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5041                         } else {
5042                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5043                         }
5044
5045                         if (events->sctp_sender_dry_event) {
5046                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5047                         } else {
5048                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5049                         }
5050
5051                         if (events->sctp_stream_reset_event) {
5052                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5053                         } else {
5054                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5055                         }
5056                         SCTP_INP_WUNLOCK(inp);
5057
5058                         SCTP_INP_RLOCK(inp);
5059                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5060                                 SCTP_TCB_LOCK(stcb);
5061                                 if (events->sctp_association_event) {
5062                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5063                                 } else {
5064                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5065                                 }
5066                                 if (events->sctp_address_event) {
5067                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5068                                 } else {
5069                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5070                                 }
5071                                 if (events->sctp_send_failure_event) {
5072                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5073                                 } else {
5074                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5075                                 }
5076                                 if (events->sctp_peer_error_event) {
5077                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5078                                 } else {
5079                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5080                                 }
5081                                 if (events->sctp_shutdown_event) {
5082                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5083                                 } else {
5084                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5085                                 }
5086                                 if (events->sctp_partial_delivery_event) {
5087                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5088                                 } else {
5089                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5090                                 }
5091                                 if (events->sctp_adaptation_layer_event) {
5092                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5093                                 } else {
5094                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5095                                 }
5096                                 if (events->sctp_authentication_event) {
5097                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5098                                 } else {
5099                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5100                                 }
5101                                 if (events->sctp_sender_dry_event) {
5102                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5103                                 } else {
5104                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5105                                 }
5106                                 if (events->sctp_stream_reset_event) {
5107                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5108                                 } else {
5109                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5110                                 }
5111                                 SCTP_TCB_UNLOCK(stcb);
5112                         }
5113                         /*
5114                          * Send up the sender dry event only for 1-to-1
5115                          * style sockets.
5116                          */
5117                         if (events->sctp_sender_dry_event) {
5118                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5119                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5120                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5121                                         if (stcb) {
5122                                                 SCTP_TCB_LOCK(stcb);
5123                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5124                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5125                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5126                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5127                                                 }
5128                                                 SCTP_TCB_UNLOCK(stcb);
5129                                         }
5130                                 }
5131                         }
5132                         SCTP_INP_RUNLOCK(inp);
5133                         break;
5134                 }
5135         case SCTP_ADAPTATION_LAYER:
5136                 {
5137                         struct sctp_setadaptation *adap_bits;
5138
5139                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5140                         SCTP_INP_WLOCK(inp);
5141                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5142                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5143                         SCTP_INP_WUNLOCK(inp);
5144                         break;
5145                 }
5146 #ifdef SCTP_DEBUG
5147         case SCTP_SET_INITIAL_DBG_SEQ:
5148                 {
5149                         uint32_t *vvv;
5150
5151                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5152                         SCTP_INP_WLOCK(inp);
5153                         inp->sctp_ep.initial_sequence_debug = *vvv;
5154                         SCTP_INP_WUNLOCK(inp);
5155                         break;
5156                 }
5157 #endif
5158         case SCTP_DEFAULT_SEND_PARAM:
5159                 {
5160                         struct sctp_sndrcvinfo *s_info;
5161
5162                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5163                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5164
5165                         if (stcb) {
5166                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5167                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5168                                 } else {
5169                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5170                                         error = EINVAL;
5171                                 }
5172                                 SCTP_TCB_UNLOCK(stcb);
5173                         } else {
5174                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5175                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5176                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5177                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5178                                         SCTP_INP_WLOCK(inp);
5179                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5180                                         SCTP_INP_WUNLOCK(inp);
5181                                 }
5182                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5183                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5184                                         SCTP_INP_RLOCK(inp);
5185                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5186                                                 SCTP_TCB_LOCK(stcb);
5187                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5188                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5189                                                 }
5190                                                 SCTP_TCB_UNLOCK(stcb);
5191                                         }
5192                                         SCTP_INP_RUNLOCK(inp);
5193                                 }
5194                         }
5195                         break;
5196                 }
5197         case SCTP_PEER_ADDR_PARAMS:
5198                 {
5199                         struct sctp_paddrparams *paddrp;
5200                         struct sctp_nets *net;
5201                         struct sockaddr *addr;
5202 #if defined(INET) && defined(INET6)
5203                         struct sockaddr_in sin_store;
5204 #endif
5205
5206                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5207                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5208
5209 #if defined(INET) && defined(INET6)
5210                         if (paddrp->spp_address.ss_family == AF_INET6) {
5211                                 struct sockaddr_in6 *sin6;
5212
5213                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5214                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5215                                         in6_sin6_2_sin(&sin_store, sin6);
5216                                         addr = (struct sockaddr *)&sin_store;
5217                                 } else {
5218                                         addr = (struct sockaddr *)&paddrp->spp_address;
5219                                 }
5220                         } else {
5221                                 addr = (struct sockaddr *)&paddrp->spp_address;
5222                         }
5223 #else
5224                         addr = (struct sockaddr *)&paddrp->spp_address;
5225 #endif
5226                         if (stcb != NULL) {
5227                                 net = sctp_findnet(stcb, addr);
5228                         } else {
5229                                 /*
5230                                  * We increment here since
5231                                  * sctp_findassociation_ep_addr() wil do a
5232                                  * decrement if it finds the stcb as long as
5233                                  * the locked tcb (last argument) is NOT a
5234                                  * TCB.. aka NULL.
5235                                  */
5236                                 net = NULL;
5237                                 SCTP_INP_INCR_REF(inp);
5238                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5239                                     &net, NULL, NULL);
5240                                 if (stcb == NULL) {
5241                                         SCTP_INP_DECR_REF(inp);
5242                                 }
5243                         }
5244                         if ((stcb != NULL) && (net == NULL)) {
5245 #ifdef INET
5246                                 if (addr->sa_family == AF_INET) {
5247
5248                                         struct sockaddr_in *sin;
5249
5250                                         sin = (struct sockaddr_in *)addr;
5251                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5252                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5253                                                 SCTP_TCB_UNLOCK(stcb);
5254                                                 error = EINVAL;
5255                                                 break;
5256                                         }
5257                                 } else
5258 #endif
5259 #ifdef INET6
5260                                 if (addr->sa_family == AF_INET6) {
5261                                         struct sockaddr_in6 *sin6;
5262
5263                                         sin6 = (struct sockaddr_in6 *)addr;
5264                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5265                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5266                                                 SCTP_TCB_UNLOCK(stcb);
5267                                                 error = EINVAL;
5268                                                 break;
5269                                         }
5270                                 } else
5271 #endif
5272                                 {
5273                                         error = EAFNOSUPPORT;
5274                                         SCTP_TCB_UNLOCK(stcb);
5275                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5276                                         break;
5277                                 }
5278                         }
5279                         /* sanity checks */
5280                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5281                                 if (stcb)
5282                                         SCTP_TCB_UNLOCK(stcb);
5283                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5284                                 return (EINVAL);
5285                         }
5286
5287                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5288                                 if (stcb)
5289                                         SCTP_TCB_UNLOCK(stcb);
5290                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5291                                 return (EINVAL);
5292                         }
5293
5294                         if (stcb != NULL) {
5295                                 /************************TCB SPECIFIC SET ******************/
5296                                 if (net != NULL) {
5297                                         /************************NET SPECIFIC SET ******************/
5298                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5299                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5300                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5301                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5302                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5303                                                 }
5304                                                 net->dest_state |= SCTP_ADDR_NOHB;
5305                                         }
5306                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5307                                                 if (paddrp->spp_hbinterval) {
5308                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5309                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5310                                                         net->heart_beat_delay = 0;
5311                                                 }
5312                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5313                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5314                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5315                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5316                                         }
5317                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5318                                                 /* on demand HB */
5319                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5320                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5321                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5322                                         }
5323                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5324                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5325                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5326                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5327                                                 }
5328                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5329                                                 net->mtu = paddrp->spp_pathmtu;
5330                                                 switch (net->ro._l_addr.sa.sa_family) {
5331 #ifdef INET
5332                                                 case AF_INET:
5333                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5334                                                         break;
5335 #endif
5336 #ifdef INET6
5337                                                 case AF_INET6:
5338                                                         net->mtu += SCTP_MIN_OVERHEAD;
5339                                                         break;
5340 #endif
5341                                                 default:
5342                                                         break;
5343                                                 }
5344                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5345                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5346                                                 }
5347                                         }
5348                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5349                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5350                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5351                                                 }
5352                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5353                                         }
5354                                         if (paddrp->spp_pathmaxrxt) {
5355                                                 if (net->dest_state & SCTP_ADDR_PF) {
5356                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5357                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5358                                                         }
5359                                                 } else {
5360                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5361                                                             (net->error_count > net->pf_threshold)) {
5362                                                                 net->dest_state |= SCTP_ADDR_PF;
5363                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5364                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5365                                                                     stcb->sctp_ep, stcb, net,
5366                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5367                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5368                                                         }
5369                                                 }
5370                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5371                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5372                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5373                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5374                                                         }
5375                                                 } else {
5376                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5377                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5378                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5379                                                         }
5380                                                 }
5381                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5382                                         }
5383                                         if (paddrp->spp_flags & SPP_DSCP) {
5384                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5385                                                 net->dscp |= 0x01;
5386                                         }
5387 #ifdef INET6
5388                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5389                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5390                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5391                                                         net->flowlabel |= 0x80000000;
5392                                                 }
5393                                         }
5394 #endif
5395                                 } else {
5396                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5397                                         if (paddrp->spp_pathmaxrxt != 0) {
5398                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5399                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5400                                                         if (net->dest_state & SCTP_ADDR_PF) {
5401                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5402                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5403                                                                 }
5404                                                         } else {
5405                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5406                                                                     (net->error_count > net->pf_threshold)) {
5407                                                                         net->dest_state |= SCTP_ADDR_PF;
5408                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5409                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5410                                                                             stcb->sctp_ep, stcb, net,
5411                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5412                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5413                                                                 }
5414                                                         }
5415                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5416                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5417                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5418                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5419                                                                 }
5420                                                         } else {
5421                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5422                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5423                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5424                                                                 }
5425                                                         }
5426                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5427                                                 }
5428                                         }
5429
5430                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5431                                                 if (paddrp->spp_hbinterval != 0) {
5432                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5433                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5434                                                         stcb->asoc.heart_beat_delay = 0;
5435                                                 }
5436                                                 /* Turn back on the timer */
5437                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5438                                                         if (paddrp->spp_hbinterval != 0) {
5439                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5440                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5441                                                                 net->heart_beat_delay = 0;
5442                                                         }
5443                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5444                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5445                                                         }
5446                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5447                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5448                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5449                                                 }
5450                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5451                                         }
5452                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5453                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5454                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5455                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5456                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5457                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5458                                                                             inp, stcb, net,
5459                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5460                                                                 }
5461                                                         }
5462                                                 }
5463                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5464                                         }
5465                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5466                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5467                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5468                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5469                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5470                                                         }
5471                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5472                                                         net->mtu = paddrp->spp_pathmtu;
5473                                                         switch (net->ro._l_addr.sa.sa_family) {
5474 #ifdef INET
5475                                                         case AF_INET:
5476                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5477                                                                 break;
5478 #endif
5479 #ifdef INET6
5480                                                         case AF_INET6:
5481                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5482                                                                 break;
5483 #endif
5484                                                         default:
5485                                                                 break;
5486                                                         }
5487                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5488                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5489                                                         }
5490                                                 }
5491                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5492                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5493                                         }
5494                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5495                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5496                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5497                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5498                                                         }
5499                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5500                                                 }
5501                                                 stcb->asoc.default_mtu = 0;
5502                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5503                                         }
5504                                         if (paddrp->spp_flags & SPP_DSCP) {
5505                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5506                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5507                                                         net->dscp |= 0x01;
5508                                                 }
5509                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5510                                                 stcb->asoc.default_dscp |= 0x01;
5511                                         }
5512 #ifdef INET6
5513                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5514                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5515                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5516                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5517                                                                 net->flowlabel |= 0x80000000;
5518                                                         }
5519                                                 }
5520                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5521                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5522                                         }
5523 #endif
5524                                 }
5525                                 SCTP_TCB_UNLOCK(stcb);
5526                         } else {
5527                                 /************************NO TCB, SET TO default stuff ******************/
5528                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5529                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5530                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5531                                         SCTP_INP_WLOCK(inp);
5532                                         /*
5533                                          * For the TOS/FLOWLABEL stuff you
5534                                          * set it with the options on the
5535                                          * socket
5536                                          */
5537                                         if (paddrp->spp_pathmaxrxt != 0) {
5538                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5539                                         }
5540
5541                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5542                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5543                                         else if (paddrp->spp_hbinterval != 0) {
5544                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5545                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5546                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5547                                         }
5548
5549                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5550                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5551                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5552                                                 } else if (paddrp->spp_hbinterval) {
5553                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5554                                                 }
5555                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5556                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5557                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5558                                         }
5559                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5560                                                 inp->sctp_ep.default_mtu = 0;
5561                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5562                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5563                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
5564                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5565                                                 }
5566                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5567                                         }
5568                                         if (paddrp->spp_flags & SPP_DSCP) {
5569                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5570                                                 inp->sctp_ep.default_dscp |= 0x01;
5571                                         }
5572 #ifdef INET6
5573                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5574                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5575                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5576                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5577                                                 }
5578                                         }
5579 #endif
5580                                         SCTP_INP_WUNLOCK(inp);
5581                                 } else {
5582                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5583                                         error = EINVAL;
5584                                 }
5585                         }
5586                         break;
5587                 }
5588         case SCTP_RTOINFO:
5589                 {
5590                         struct sctp_rtoinfo *srto;
5591                         uint32_t new_init, new_min, new_max;
5592
5593                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5594                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5595
5596                         if (stcb) {
5597                                 if (srto->srto_initial)
5598                                         new_init = srto->srto_initial;
5599                                 else
5600                                         new_init = stcb->asoc.initial_rto;
5601                                 if (srto->srto_max)
5602                                         new_max = srto->srto_max;
5603                                 else
5604                                         new_max = stcb->asoc.maxrto;
5605                                 if (srto->srto_min)
5606                                         new_min = srto->srto_min;
5607                                 else
5608                                         new_min = stcb->asoc.minrto;
5609                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5610                                         stcb->asoc.initial_rto = new_init;
5611                                         stcb->asoc.maxrto = new_max;
5612                                         stcb->asoc.minrto = new_min;
5613                                 } else {
5614                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5615                                         error = EINVAL;
5616                                 }
5617                                 SCTP_TCB_UNLOCK(stcb);
5618                         } else {
5619                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5620                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5621                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5622                                         SCTP_INP_WLOCK(inp);
5623                                         if (srto->srto_initial)
5624                                                 new_init = srto->srto_initial;
5625                                         else
5626                                                 new_init = inp->sctp_ep.initial_rto;
5627                                         if (srto->srto_max)
5628                                                 new_max = srto->srto_max;
5629                                         else
5630                                                 new_max = inp->sctp_ep.sctp_maxrto;
5631                                         if (srto->srto_min)
5632                                                 new_min = srto->srto_min;
5633                                         else
5634                                                 new_min = inp->sctp_ep.sctp_minrto;
5635                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5636                                                 inp->sctp_ep.initial_rto = new_init;
5637                                                 inp->sctp_ep.sctp_maxrto = new_max;
5638                                                 inp->sctp_ep.sctp_minrto = new_min;
5639                                         } else {
5640                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5641                                                 error = EINVAL;
5642                                         }
5643                                         SCTP_INP_WUNLOCK(inp);
5644                                 } else {
5645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5646                                         error = EINVAL;
5647                                 }
5648                         }
5649                         break;
5650                 }
5651         case SCTP_ASSOCINFO:
5652                 {
5653                         struct sctp_assocparams *sasoc;
5654
5655                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5656                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5657                         if (sasoc->sasoc_cookie_life) {
5658                                 /* boundary check the cookie life */
5659                                 if (sasoc->sasoc_cookie_life < 1000)
5660                                         sasoc->sasoc_cookie_life = 1000;
5661                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5662                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5663                                 }
5664                         }
5665                         if (stcb) {
5666                                 if (sasoc->sasoc_asocmaxrxt)
5667                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5668                                 if (sasoc->sasoc_cookie_life) {
5669                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5670                                 }
5671                                 SCTP_TCB_UNLOCK(stcb);
5672                         } else {
5673                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5674                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5675                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5676                                         SCTP_INP_WLOCK(inp);
5677                                         if (sasoc->sasoc_asocmaxrxt)
5678                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5679                                         if (sasoc->sasoc_cookie_life) {
5680                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5681                                         }
5682                                         SCTP_INP_WUNLOCK(inp);
5683                                 } else {
5684                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5685                                         error = EINVAL;
5686                                 }
5687                         }
5688                         break;
5689                 }
5690         case SCTP_INITMSG:
5691                 {
5692                         struct sctp_initmsg *sinit;
5693
5694                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5695                         SCTP_INP_WLOCK(inp);
5696                         if (sinit->sinit_num_ostreams)
5697                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5698
5699                         if (sinit->sinit_max_instreams)
5700                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5701
5702                         if (sinit->sinit_max_attempts)
5703                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5704
5705                         if (sinit->sinit_max_init_timeo)
5706                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5707                         SCTP_INP_WUNLOCK(inp);
5708                         break;
5709                 }
5710         case SCTP_PRIMARY_ADDR:
5711                 {
5712                         struct sctp_setprim *spa;
5713                         struct sctp_nets *net;
5714                         struct sockaddr *addr;
5715 #if defined(INET) && defined(INET6)
5716                         struct sockaddr_in sin_store;
5717 #endif
5718
5719                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5720                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5721
5722 #if defined(INET) && defined(INET6)
5723                         if (spa->ssp_addr.ss_family == AF_INET6) {
5724                                 struct sockaddr_in6 *sin6;
5725
5726                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5727                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5728                                         in6_sin6_2_sin(&sin_store, sin6);
5729                                         addr = (struct sockaddr *)&sin_store;
5730                                 } else {
5731                                         addr = (struct sockaddr *)&spa->ssp_addr;
5732                                 }
5733                         } else {
5734                                 addr = (struct sockaddr *)&spa->ssp_addr;
5735                         }
5736 #else
5737                         addr = (struct sockaddr *)&spa->ssp_addr;
5738 #endif
5739                         if (stcb != NULL) {
5740                                 net = sctp_findnet(stcb, addr);
5741                         } else {
5742                                 /*
5743                                  * We increment here since
5744                                  * sctp_findassociation_ep_addr() wil do a
5745                                  * decrement if it finds the stcb as long as
5746                                  * the locked tcb (last argument) is NOT a
5747                                  * TCB.. aka NULL.
5748                                  */
5749                                 net = NULL;
5750                                 SCTP_INP_INCR_REF(inp);
5751                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5752                                     &net, NULL, NULL);
5753                                 if (stcb == NULL) {
5754                                         SCTP_INP_DECR_REF(inp);
5755                                 }
5756                         }
5757
5758                         if ((stcb != NULL) && (net != NULL)) {
5759                                 if (net != stcb->asoc.primary_destination) {
5760                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5761                                                 /* Ok we need to set it */
5762                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5763                                                         if ((stcb->asoc.alternate) &&
5764                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5765                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5766                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5767                                                                 stcb->asoc.alternate = NULL;
5768                                                         }
5769                                                 } else {
5770                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5771                                                         error = EINVAL;
5772                                                 }
5773                                         } else {
5774                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5775                                                 error = EINVAL;
5776                                         }
5777                                 }
5778                         } else {
5779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5780                                 error = EINVAL;
5781                         }
5782                         if (stcb != NULL) {
5783                                 SCTP_TCB_UNLOCK(stcb);
5784                         }
5785                         break;
5786                 }
5787         case SCTP_SET_DYNAMIC_PRIMARY:
5788                 {
5789                         union sctp_sockstore *ss;
5790
5791                         error = priv_check(curthread,
5792                             PRIV_NETINET_RESERVEDPORT);
5793                         if (error)
5794                                 break;
5795
5796                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5797                         /* SUPER USER CHECK? */
5798                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5799                         break;
5800                 }
5801         case SCTP_SET_PEER_PRIMARY_ADDR:
5802                 {
5803                         struct sctp_setpeerprim *sspp;
5804                         struct sockaddr *addr;
5805 #if defined(INET) && defined(INET6)
5806                         struct sockaddr_in sin_store;
5807 #endif
5808
5809                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5810                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5811                         if (stcb != NULL) {
5812                                 struct sctp_ifa *ifa;
5813
5814 #if defined(INET) && defined(INET6)
5815                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5816                                         struct sockaddr_in6 *sin6;
5817
5818                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5819                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5820                                                 in6_sin6_2_sin(&sin_store, sin6);
5821                                                 addr = (struct sockaddr *)&sin_store;
5822                                         } else {
5823                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5824                                         }
5825                                 } else {
5826                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5827                                 }
5828 #else
5829                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5830 #endif
5831                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5832                                 if (ifa == NULL) {
5833                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5834                                         error = EINVAL;
5835                                         goto out_of_it;
5836                                 }
5837                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5838                                         /*
5839                                          * Must validate the ifa found is in
5840                                          * our ep
5841                                          */
5842                                         struct sctp_laddr *laddr;
5843                                         int found = 0;
5844
5845                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5846                                                 if (laddr->ifa == NULL) {
5847                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5848                                                             __func__);
5849                                                         continue;
5850                                                 }
5851                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5852                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5853                                                         continue;
5854                                                 }
5855                                                 if (laddr->ifa == ifa) {
5856                                                         found = 1;
5857                                                         break;
5858                                                 }
5859                                         }
5860                                         if (!found) {
5861                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5862                                                 error = EINVAL;
5863                                                 goto out_of_it;
5864                                         }
5865                                 } else {
5866                                         switch (addr->sa_family) {
5867 #ifdef INET
5868                                         case AF_INET:
5869                                                 {
5870                                                         struct sockaddr_in *sin;
5871
5872                                                         sin = (struct sockaddr_in *)addr;
5873                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5874                                                             &sin->sin_addr) != 0) {
5875                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5876                                                                 error = EINVAL;
5877                                                                 goto out_of_it;
5878                                                         }
5879                                                         break;
5880                                                 }
5881 #endif
5882 #ifdef INET6
5883                                         case AF_INET6:
5884                                                 {
5885                                                         struct sockaddr_in6 *sin6;
5886
5887                                                         sin6 = (struct sockaddr_in6 *)addr;
5888                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5889                                                             &sin6->sin6_addr) != 0) {
5890                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5891                                                                 error = EINVAL;
5892                                                                 goto out_of_it;
5893                                                         }
5894                                                         break;
5895                                                 }
5896 #endif
5897                                         default:
5898                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5899                                                 error = EINVAL;
5900                                                 goto out_of_it;
5901                                         }
5902                                 }
5903                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5904                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5905                                         error = EINVAL;
5906                                 }
5907                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5908                 out_of_it:
5909                                 SCTP_TCB_UNLOCK(stcb);
5910                         } else {
5911                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5912                                 error = EINVAL;
5913                         }
5914                         break;
5915                 }
5916         case SCTP_BINDX_ADD_ADDR:
5917                 {
5918                         struct sctp_getaddresses *addrs;
5919                         struct thread *td;
5920
5921                         td = (struct thread *)p;
5922                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5923                             optsize);
5924 #ifdef INET
5925                         if (addrs->addr->sa_family == AF_INET) {
5926                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5928                                         error = EINVAL;
5929                                         break;
5930                                 }
5931                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5932                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5933                                         break;
5934                                 }
5935                         } else
5936 #endif
5937 #ifdef INET6
5938                         if (addrs->addr->sa_family == AF_INET6) {
5939                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5940                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5941                                         error = EINVAL;
5942                                         break;
5943                                 }
5944                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5945                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5946                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5947                                         break;
5948                                 }
5949                         } else
5950 #endif
5951                         {
5952                                 error = EAFNOSUPPORT;
5953                                 break;
5954                         }
5955                         sctp_bindx_add_address(so, inp, addrs->addr,
5956                             addrs->sget_assoc_id, vrf_id,
5957                             &error, p);
5958                         break;
5959                 }
5960         case SCTP_BINDX_REM_ADDR:
5961                 {
5962                         struct sctp_getaddresses *addrs;
5963                         struct thread *td;
5964
5965                         td = (struct thread *)p;
5966
5967                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5968 #ifdef INET
5969                         if (addrs->addr->sa_family == AF_INET) {
5970                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5971                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5972                                         error = EINVAL;
5973                                         break;
5974                                 }
5975                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5976                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5977                                         break;
5978                                 }
5979                         } else
5980 #endif
5981 #ifdef INET6
5982                         if (addrs->addr->sa_family == AF_INET6) {
5983                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5984                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5985                                         error = EINVAL;
5986                                         break;
5987                                 }
5988                                 if (td != NULL &&
5989                                     (error = prison_local_ip6(td->td_ucred,
5990                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5991                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5992                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5993                                         break;
5994                                 }
5995                         } else
5996 #endif
5997                         {
5998                                 error = EAFNOSUPPORT;
5999                                 break;
6000                         }
6001                         sctp_bindx_delete_address(inp, addrs->addr,
6002                             addrs->sget_assoc_id, vrf_id,
6003                             &error);
6004                         break;
6005                 }
6006         case SCTP_EVENT:
6007                 {
6008                         struct sctp_event *event;
6009                         uint32_t event_type;
6010
6011                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6012                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6013                         switch (event->se_type) {
6014                         case SCTP_ASSOC_CHANGE:
6015                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6016                                 break;
6017                         case SCTP_PEER_ADDR_CHANGE:
6018                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6019                                 break;
6020                         case SCTP_REMOTE_ERROR:
6021                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6022                                 break;
6023                         case SCTP_SEND_FAILED:
6024                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6025                                 break;
6026                         case SCTP_SHUTDOWN_EVENT:
6027                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6028                                 break;
6029                         case SCTP_ADAPTATION_INDICATION:
6030                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6031                                 break;
6032                         case SCTP_PARTIAL_DELIVERY_EVENT:
6033                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6034                                 break;
6035                         case SCTP_AUTHENTICATION_EVENT:
6036                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6037                                 break;
6038                         case SCTP_STREAM_RESET_EVENT:
6039                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6040                                 break;
6041                         case SCTP_SENDER_DRY_EVENT:
6042                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6043                                 break;
6044                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6045                                 event_type = 0;
6046                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6047                                 error = ENOTSUP;
6048                                 break;
6049                         case SCTP_ASSOC_RESET_EVENT:
6050                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6051                                 break;
6052                         case SCTP_STREAM_CHANGE_EVENT:
6053                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6054                                 break;
6055                         case SCTP_SEND_FAILED_EVENT:
6056                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6057                                 break;
6058                         default:
6059                                 event_type = 0;
6060                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6061                                 error = EINVAL;
6062                                 break;
6063                         }
6064                         if (event_type > 0) {
6065                                 if (stcb) {
6066                                         if (event->se_on) {
6067                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6068                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6069                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6070                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6071                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6072                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6073                                                         }
6074                                                 }
6075                                         } else {
6076                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6077                                         }
6078                                         SCTP_TCB_UNLOCK(stcb);
6079                                 } else {
6080                                         /*
6081                                          * We don't want to send up a storm
6082                                          * of events, so return an error for
6083                                          * sender dry events
6084                                          */
6085                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6086                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6087                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6088                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6089                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6090                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6091                                                 error = ENOTSUP;
6092                                                 break;
6093                                         }
6094                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6095                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6096                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6097                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6098                                                 SCTP_INP_WLOCK(inp);
6099                                                 if (event->se_on) {
6100                                                         sctp_feature_on(inp, event_type);
6101                                                 } else {
6102                                                         sctp_feature_off(inp, event_type);
6103                                                 }
6104                                                 SCTP_INP_WUNLOCK(inp);
6105                                         }
6106                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6107                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6108                                                 SCTP_INP_RLOCK(inp);
6109                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6110                                                         SCTP_TCB_LOCK(stcb);
6111                                                         if (event->se_on) {
6112                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6113                                                         } else {
6114                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6115                                                         }
6116                                                         SCTP_TCB_UNLOCK(stcb);
6117                                                 }
6118                                                 SCTP_INP_RUNLOCK(inp);
6119                                         }
6120                                 }
6121                         }
6122                         break;
6123                 }
6124         case SCTP_RECVRCVINFO:
6125                 {
6126                         int *onoff;
6127
6128                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6129                         SCTP_INP_WLOCK(inp);
6130                         if (*onoff != 0) {
6131                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6132                         } else {
6133                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6134                         }
6135                         SCTP_INP_WUNLOCK(inp);
6136                         break;
6137                 }
6138         case SCTP_RECVNXTINFO:
6139                 {
6140                         int *onoff;
6141
6142                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6143                         SCTP_INP_WLOCK(inp);
6144                         if (*onoff != 0) {
6145                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6146                         } else {
6147                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6148                         }
6149                         SCTP_INP_WUNLOCK(inp);
6150                         break;
6151                 }
6152         case SCTP_DEFAULT_SNDINFO:
6153                 {
6154                         struct sctp_sndinfo *info;
6155                         uint16_t policy;
6156
6157                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6158                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6159
6160                         if (stcb) {
6161                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6162                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6163                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6164                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6165                                         stcb->asoc.def_send.sinfo_flags |= policy;
6166                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6167                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6168                                 } else {
6169                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6170                                         error = EINVAL;
6171                                 }
6172                                 SCTP_TCB_UNLOCK(stcb);
6173                         } else {
6174                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6175                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6176                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6177                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6178                                         SCTP_INP_WLOCK(inp);
6179                                         inp->def_send.sinfo_stream = info->snd_sid;
6180                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6181                                         inp->def_send.sinfo_flags = info->snd_flags;
6182                                         inp->def_send.sinfo_flags |= policy;
6183                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6184                                         inp->def_send.sinfo_context = info->snd_context;
6185                                         SCTP_INP_WUNLOCK(inp);
6186                                 }
6187                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6188                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6189                                         SCTP_INP_RLOCK(inp);
6190                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6191                                                 SCTP_TCB_LOCK(stcb);
6192                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6193                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6194                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6195                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6196                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6197                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6198                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6199                                                 }
6200                                                 SCTP_TCB_UNLOCK(stcb);
6201                                         }
6202                                         SCTP_INP_RUNLOCK(inp);
6203                                 }
6204                         }
6205                         break;
6206                 }
6207         case SCTP_DEFAULT_PRINFO:
6208                 {
6209                         struct sctp_default_prinfo *info;
6210
6211                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6212                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6213
6214                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6215                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6216                                 error = EINVAL;
6217                                 break;
6218                         }
6219                         if (stcb) {
6220                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6221                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6222                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6223                                 SCTP_TCB_UNLOCK(stcb);
6224                         } else {
6225                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6226                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6227                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6228                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6229                                         SCTP_INP_WLOCK(inp);
6230                                         inp->def_send.sinfo_flags &= 0xfff0;
6231                                         inp->def_send.sinfo_flags |= info->pr_policy;
6232                                         inp->def_send.sinfo_timetolive = info->pr_value;
6233                                         SCTP_INP_WUNLOCK(inp);
6234                                 }
6235                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6236                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6237                                         SCTP_INP_RLOCK(inp);
6238                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6239                                                 SCTP_TCB_LOCK(stcb);
6240                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6241                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6242                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6243                                                 SCTP_TCB_UNLOCK(stcb);
6244                                         }
6245                                         SCTP_INP_RUNLOCK(inp);
6246                                 }
6247                         }
6248                         break;
6249                 }
6250         case SCTP_PEER_ADDR_THLDS:
6251                 /* Applies to the specific association */
6252                 {
6253                         struct sctp_paddrthlds *thlds;
6254                         struct sctp_nets *net;
6255                         struct sockaddr *addr;
6256 #if defined(INET) && defined(INET6)
6257                         struct sockaddr_in sin_store;
6258 #endif
6259
6260                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6261                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6262
6263 #if defined(INET) && defined(INET6)
6264                         if (thlds->spt_address.ss_family == AF_INET6) {
6265                                 struct sockaddr_in6 *sin6;
6266
6267                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6268                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6269                                         in6_sin6_2_sin(&sin_store, sin6);
6270                                         addr = (struct sockaddr *)&sin_store;
6271                                 } else {
6272                                         addr = (struct sockaddr *)&thlds->spt_address;
6273                                 }
6274                         } else {
6275                                 addr = (struct sockaddr *)&thlds->spt_address;
6276                         }
6277 #else
6278                         addr = (struct sockaddr *)&thlds->spt_address;
6279 #endif
6280                         if (stcb != NULL) {
6281                                 net = sctp_findnet(stcb, addr);
6282                         } else {
6283                                 /*
6284                                  * We increment here since
6285                                  * sctp_findassociation_ep_addr() wil do a
6286                                  * decrement if it finds the stcb as long as
6287                                  * the locked tcb (last argument) is NOT a
6288                                  * TCB.. aka NULL.
6289                                  */
6290                                 net = NULL;
6291                                 SCTP_INP_INCR_REF(inp);
6292                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6293                                     &net, NULL, NULL);
6294                                 if (stcb == NULL) {
6295                                         SCTP_INP_DECR_REF(inp);
6296                                 }
6297                         }
6298                         if ((stcb != NULL) && (net == NULL)) {
6299 #ifdef INET
6300                                 if (addr->sa_family == AF_INET) {
6301
6302                                         struct sockaddr_in *sin;
6303
6304                                         sin = (struct sockaddr_in *)addr;
6305                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6306                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6307                                                 SCTP_TCB_UNLOCK(stcb);
6308                                                 error = EINVAL;
6309                                                 break;
6310                                         }
6311                                 } else
6312 #endif
6313 #ifdef INET6
6314                                 if (addr->sa_family == AF_INET6) {
6315                                         struct sockaddr_in6 *sin6;
6316
6317                                         sin6 = (struct sockaddr_in6 *)addr;
6318                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6319                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6320                                                 SCTP_TCB_UNLOCK(stcb);
6321                                                 error = EINVAL;
6322                                                 break;
6323                                         }
6324                                 } else
6325 #endif
6326                                 {
6327                                         error = EAFNOSUPPORT;
6328                                         SCTP_TCB_UNLOCK(stcb);
6329                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6330                                         break;
6331                                 }
6332                         }
6333                         if (thlds->spt_pathcpthld != 0xffff) {
6334                                 error = EINVAL;
6335                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6336                                 break;
6337                         }
6338                         if (stcb != NULL) {
6339                                 if (net != NULL) {
6340                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6341                                         net->pf_threshold = thlds->spt_pathpfthld;
6342                                         if (net->dest_state & SCTP_ADDR_PF) {
6343                                                 if ((net->error_count > net->failure_threshold) ||
6344                                                     (net->error_count <= net->pf_threshold)) {
6345                                                         net->dest_state &= ~SCTP_ADDR_PF;
6346                                                 }
6347                                         } else {
6348                                                 if ((net->error_count > net->pf_threshold) &&
6349                                                     (net->error_count <= net->failure_threshold)) {
6350                                                         net->dest_state |= SCTP_ADDR_PF;
6351                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6352                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6353                                                             stcb->sctp_ep, stcb, net,
6354                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6355                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6356                                                 }
6357                                         }
6358                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6359                                                 if (net->error_count > net->failure_threshold) {
6360                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6361                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6362                                                 }
6363                                         } else {
6364                                                 if (net->error_count <= net->failure_threshold) {
6365                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6366                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6367                                                 }
6368                                         }
6369                                 } else {
6370                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6371                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6372                                                 net->pf_threshold = thlds->spt_pathpfthld;
6373                                                 if (net->dest_state & SCTP_ADDR_PF) {
6374                                                         if ((net->error_count > net->failure_threshold) ||
6375                                                             (net->error_count <= net->pf_threshold)) {
6376                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6377                                                         }
6378                                                 } else {
6379                                                         if ((net->error_count > net->pf_threshold) &&
6380                                                             (net->error_count <= net->failure_threshold)) {
6381                                                                 net->dest_state |= SCTP_ADDR_PF;
6382                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6383                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6384                                                                     stcb->sctp_ep, stcb, net,
6385                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6386                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6387                                                         }
6388                                                 }
6389                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6390                                                         if (net->error_count > net->failure_threshold) {
6391                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6392                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6393                                                         }
6394                                                 } else {
6395                                                         if (net->error_count <= net->failure_threshold) {
6396                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6397                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6398                                                         }
6399                                                 }
6400                                         }
6401                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6402                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6403                                 }
6404                                 SCTP_TCB_UNLOCK(stcb);
6405                         } else {
6406                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6407                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6408                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6409                                         SCTP_INP_WLOCK(inp);
6410                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6411                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6412                                         SCTP_INP_WUNLOCK(inp);
6413                                 } else {
6414                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6415                                         error = EINVAL;
6416                                 }
6417                         }
6418                         break;
6419                 }
6420         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6421                 {
6422                         struct sctp_udpencaps *encaps;
6423                         struct sctp_nets *net;
6424                         struct sockaddr *addr;
6425 #if defined(INET) && defined(INET6)
6426                         struct sockaddr_in sin_store;
6427 #endif
6428
6429                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6430                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6431
6432 #if defined(INET) && defined(INET6)
6433                         if (encaps->sue_address.ss_family == AF_INET6) {
6434                                 struct sockaddr_in6 *sin6;
6435
6436                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6437                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6438                                         in6_sin6_2_sin(&sin_store, sin6);
6439                                         addr = (struct sockaddr *)&sin_store;
6440                                 } else {
6441                                         addr = (struct sockaddr *)&encaps->sue_address;
6442                                 }
6443                         } else {
6444                                 addr = (struct sockaddr *)&encaps->sue_address;
6445                         }
6446 #else
6447                         addr = (struct sockaddr *)&encaps->sue_address;
6448 #endif
6449                         if (stcb != NULL) {
6450                                 net = sctp_findnet(stcb, addr);
6451                         } else {
6452                                 /*
6453                                  * We increment here since
6454                                  * sctp_findassociation_ep_addr() wil do a
6455                                  * decrement if it finds the stcb as long as
6456                                  * the locked tcb (last argument) is NOT a
6457                                  * TCB.. aka NULL.
6458                                  */
6459                                 net = NULL;
6460                                 SCTP_INP_INCR_REF(inp);
6461                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6462                                 if (stcb == NULL) {
6463                                         SCTP_INP_DECR_REF(inp);
6464                                 }
6465                         }
6466                         if ((stcb != NULL) && (net == NULL)) {
6467 #ifdef INET
6468                                 if (addr->sa_family == AF_INET) {
6469
6470                                         struct sockaddr_in *sin;
6471
6472                                         sin = (struct sockaddr_in *)addr;
6473                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6474                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6475                                                 SCTP_TCB_UNLOCK(stcb);
6476                                                 error = EINVAL;
6477                                                 break;
6478                                         }
6479                                 } else
6480 #endif
6481 #ifdef INET6
6482                                 if (addr->sa_family == AF_INET6) {
6483                                         struct sockaddr_in6 *sin6;
6484
6485                                         sin6 = (struct sockaddr_in6 *)addr;
6486                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6487                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6488                                                 SCTP_TCB_UNLOCK(stcb);
6489                                                 error = EINVAL;
6490                                                 break;
6491                                         }
6492                                 } else
6493 #endif
6494                                 {
6495                                         error = EAFNOSUPPORT;
6496                                         SCTP_TCB_UNLOCK(stcb);
6497                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6498                                         break;
6499                                 }
6500                         }
6501
6502                         if (stcb != NULL) {
6503                                 if (net != NULL) {
6504                                         net->port = encaps->sue_port;
6505                                 } else {
6506                                         stcb->asoc.port = encaps->sue_port;
6507                                 }
6508                                 SCTP_TCB_UNLOCK(stcb);
6509                         } else {
6510                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6511                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6512                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6513                                         SCTP_INP_WLOCK(inp);
6514                                         inp->sctp_ep.port = encaps->sue_port;
6515                                         SCTP_INP_WUNLOCK(inp);
6516                                 } else {
6517                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6518                                         error = EINVAL;
6519                                 }
6520                         }
6521                         break;
6522                 }
6523         case SCTP_ECN_SUPPORTED:
6524                 {
6525                         struct sctp_assoc_value *av;
6526
6527                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6528                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6529
6530                         if (stcb) {
6531                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6532                                 error = EINVAL;
6533                                 SCTP_TCB_UNLOCK(stcb);
6534                         } else {
6535                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6536                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6537                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6538                                         SCTP_INP_WLOCK(inp);
6539                                         if (av->assoc_value == 0) {
6540                                                 inp->ecn_supported = 0;
6541                                         } else {
6542                                                 inp->ecn_supported = 1;
6543                                         }
6544                                         SCTP_INP_WUNLOCK(inp);
6545                                 } else {
6546                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6547                                         error = EINVAL;
6548                                 }
6549                         }
6550                         break;
6551                 }
6552         case SCTP_PR_SUPPORTED:
6553                 {
6554                         struct sctp_assoc_value *av;
6555
6556                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6557                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6558
6559                         if (stcb) {
6560                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6561                                 error = EINVAL;
6562                                 SCTP_TCB_UNLOCK(stcb);
6563                         } else {
6564                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6565                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6566                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6567                                         SCTP_INP_WLOCK(inp);
6568                                         if (av->assoc_value == 0) {
6569                                                 inp->prsctp_supported = 0;
6570                                         } else {
6571                                                 inp->prsctp_supported = 1;
6572                                         }
6573                                         SCTP_INP_WUNLOCK(inp);
6574                                 } else {
6575                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6576                                         error = EINVAL;
6577                                 }
6578                         }
6579                         break;
6580                 }
6581         case SCTP_AUTH_SUPPORTED:
6582                 {
6583                         struct sctp_assoc_value *av;
6584
6585                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6586                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6587
6588                         if (stcb) {
6589                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6590                                 error = EINVAL;
6591                                 SCTP_TCB_UNLOCK(stcb);
6592                         } else {
6593                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6594                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6595                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6596                                         if ((av->assoc_value == 0) &&
6597                                             (inp->asconf_supported == 1)) {
6598                                                 /*
6599                                                  * AUTH is required for
6600                                                  * ASCONF
6601                                                  */
6602                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6603                                                 error = EINVAL;
6604                                         } else {
6605                                                 SCTP_INP_WLOCK(inp);
6606                                                 if (av->assoc_value == 0) {
6607                                                         inp->auth_supported = 0;
6608                                                 } else {
6609                                                         inp->auth_supported = 1;
6610                                                 }
6611                                                 SCTP_INP_WUNLOCK(inp);
6612                                         }
6613                                 } else {
6614                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6615                                         error = EINVAL;
6616                                 }
6617                         }
6618                         break;
6619                 }
6620         case SCTP_ASCONF_SUPPORTED:
6621                 {
6622                         struct sctp_assoc_value *av;
6623
6624                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6625                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6626
6627                         if (stcb) {
6628                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6629                                 error = EINVAL;
6630                                 SCTP_TCB_UNLOCK(stcb);
6631                         } else {
6632                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6633                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6634                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6635                                         if ((av->assoc_value != 0) &&
6636                                             (inp->auth_supported == 0)) {
6637                                                 /*
6638                                                  * AUTH is required for
6639                                                  * ASCONF
6640                                                  */
6641                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6642                                                 error = EINVAL;
6643                                         } else {
6644                                                 SCTP_INP_WLOCK(inp);
6645                                                 if (av->assoc_value == 0) {
6646                                                         inp->asconf_supported = 0;
6647                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6648                                                             inp->sctp_ep.local_auth_chunks);
6649                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6650                                                             inp->sctp_ep.local_auth_chunks);
6651                                                 } else {
6652                                                         inp->asconf_supported = 1;
6653                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6654                                                             inp->sctp_ep.local_auth_chunks);
6655                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6656                                                             inp->sctp_ep.local_auth_chunks);
6657                                                 }
6658                                                 SCTP_INP_WUNLOCK(inp);
6659                                         }
6660                                 } else {
6661                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6662                                         error = EINVAL;
6663                                 }
6664                         }
6665                         break;
6666                 }
6667         case SCTP_RECONFIG_SUPPORTED:
6668                 {
6669                         struct sctp_assoc_value *av;
6670
6671                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6672                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6673
6674                         if (stcb) {
6675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6676                                 error = EINVAL;
6677                                 SCTP_TCB_UNLOCK(stcb);
6678                         } else {
6679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6681                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6682                                         SCTP_INP_WLOCK(inp);
6683                                         if (av->assoc_value == 0) {
6684                                                 inp->reconfig_supported = 0;
6685                                         } else {
6686                                                 inp->reconfig_supported = 1;
6687                                         }
6688                                         SCTP_INP_WUNLOCK(inp);
6689                                 } else {
6690                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6691                                         error = EINVAL;
6692                                 }
6693                         }
6694                         break;
6695                 }
6696         case SCTP_NRSACK_SUPPORTED:
6697                 {
6698                         struct sctp_assoc_value *av;
6699
6700                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6701                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6702
6703                         if (stcb) {
6704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6705                                 error = EINVAL;
6706                                 SCTP_TCB_UNLOCK(stcb);
6707                         } else {
6708                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6709                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6710                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6711                                         SCTP_INP_WLOCK(inp);
6712                                         if (av->assoc_value == 0) {
6713                                                 inp->nrsack_supported = 0;
6714                                         } else {
6715                                                 inp->nrsack_supported = 1;
6716                                         }
6717                                         SCTP_INP_WUNLOCK(inp);
6718                                 } else {
6719                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6720                                         error = EINVAL;
6721                                 }
6722                         }
6723                         break;
6724                 }
6725         case SCTP_PKTDROP_SUPPORTED:
6726                 {
6727                         struct sctp_assoc_value *av;
6728
6729                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6730                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6731
6732                         if (stcb) {
6733                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6734                                 error = EINVAL;
6735                                 SCTP_TCB_UNLOCK(stcb);
6736                         } else {
6737                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6738                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6739                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6740                                         SCTP_INP_WLOCK(inp);
6741                                         if (av->assoc_value == 0) {
6742                                                 inp->pktdrop_supported = 0;
6743                                         } else {
6744                                                 inp->pktdrop_supported = 1;
6745                                         }
6746                                         SCTP_INP_WUNLOCK(inp);
6747                                 } else {
6748                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6749                                         error = EINVAL;
6750                                 }
6751                         }
6752                         break;
6753                 }
6754         case SCTP_MAX_CWND:
6755                 {
6756                         struct sctp_assoc_value *av;
6757                         struct sctp_nets *net;
6758
6759                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6760                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6761
6762                         if (stcb) {
6763                                 stcb->asoc.max_cwnd = av->assoc_value;
6764                                 if (stcb->asoc.max_cwnd > 0) {
6765                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6766                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6767                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6768                                                         net->cwnd = stcb->asoc.max_cwnd;
6769                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6770                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6771                                                         }
6772                                                 }
6773                                         }
6774                                 }
6775                                 SCTP_TCB_UNLOCK(stcb);
6776                         } else {
6777                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6778                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6779                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6780                                         SCTP_INP_WLOCK(inp);
6781                                         inp->max_cwnd = av->assoc_value;
6782                                         SCTP_INP_WUNLOCK(inp);
6783                                 } else {
6784                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6785                                         error = EINVAL;
6786                                 }
6787                         }
6788                         break;
6789                 }
6790         default:
6791                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6792                 error = ENOPROTOOPT;
6793                 break;
6794         }                       /* end switch (opt) */
6795         return (error);
6796 }
6797
6798 int
6799 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6800 {
6801         void *optval = NULL;
6802         size_t optsize = 0;
6803         void *p;
6804         int error = 0;
6805         struct sctp_inpcb *inp;
6806
6807         if ((sopt->sopt_level == SOL_SOCKET) &&
6808             (sopt->sopt_name == SO_SETFIB)) {
6809                 inp = (struct sctp_inpcb *)so->so_pcb;
6810                 if (inp == NULL) {
6811                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6812                         return (EINVAL);
6813                 }
6814                 SCTP_INP_WLOCK(inp);
6815                 inp->fibnum = so->so_fibnum;
6816                 SCTP_INP_WUNLOCK(inp);
6817                 return (0);
6818         }
6819         if (sopt->sopt_level != IPPROTO_SCTP) {
6820                 /* wrong proto level... send back up to IP */
6821 #ifdef INET6
6822                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6823                         error = ip6_ctloutput(so, sopt);
6824 #endif                          /* INET6 */
6825 #if defined(INET) && defined(INET6)
6826                 else
6827 #endif
6828 #ifdef INET
6829                         error = ip_ctloutput(so, sopt);
6830 #endif
6831                 return (error);
6832         }
6833         optsize = sopt->sopt_valsize;
6834         if (optsize) {
6835                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6836                 if (optval == NULL) {
6837                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6838                         return (ENOBUFS);
6839                 }
6840                 error = sooptcopyin(sopt, optval, optsize, optsize);
6841                 if (error) {
6842                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6843                         goto out;
6844                 }
6845         }
6846         p = (void *)sopt->sopt_td;
6847         if (sopt->sopt_dir == SOPT_SET) {
6848                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6849         } else if (sopt->sopt_dir == SOPT_GET) {
6850                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6851         } else {
6852                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6853                 error = EINVAL;
6854         }
6855         if ((error == 0) && (optval != NULL)) {
6856                 error = sooptcopyout(sopt, optval, optsize);
6857                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6858         } else if (optval != NULL) {
6859                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6860         }
6861 out:
6862         return (error);
6863 }
6864
6865 #ifdef INET
6866 static int
6867 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6868 {
6869         int error = 0;
6870         int create_lock_on = 0;
6871         uint32_t vrf_id;
6872         struct sctp_inpcb *inp;
6873         struct sctp_tcb *stcb = NULL;
6874
6875         inp = (struct sctp_inpcb *)so->so_pcb;
6876         if (inp == NULL) {
6877                 /* I made the same as TCP since we are not setup? */
6878                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6879                 return (ECONNRESET);
6880         }
6881         if (addr == NULL) {
6882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6883                 return EINVAL;
6884         }
6885
6886         switch (addr->sa_family) {
6887 #ifdef INET6
6888         case AF_INET6:
6889                 {
6890                         struct sockaddr_in6 *sin6p;
6891
6892                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6893                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6894                                 return (EINVAL);
6895                         }
6896                         sin6p = (struct sockaddr_in6 *)addr;
6897                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6898                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6899                                 return (error);
6900                         }
6901                         break;
6902                 }
6903 #endif
6904 #ifdef INET
6905         case AF_INET:
6906                 {
6907                         struct sockaddr_in *sinp;
6908
6909                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6910                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6911                                 return (EINVAL);
6912                         }
6913                         sinp = (struct sockaddr_in *)addr;
6914                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6915                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6916                                 return (error);
6917                         }
6918                         break;
6919                 }
6920 #endif
6921         default:
6922                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6923                 return (EAFNOSUPPORT);
6924         }
6925         SCTP_INP_INCR_REF(inp);
6926         SCTP_ASOC_CREATE_LOCK(inp);
6927         create_lock_on = 1;
6928
6929
6930         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6931             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6932                 /* Should I really unlock ? */
6933                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6934                 error = EFAULT;
6935                 goto out_now;
6936         }
6937 #ifdef INET6
6938         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6939             (addr->sa_family == AF_INET6)) {
6940                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6941                 error = EINVAL;
6942                 goto out_now;
6943         }
6944 #endif
6945         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6946             SCTP_PCB_FLAGS_UNBOUND) {
6947                 /* Bind a ephemeral port */
6948                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6949                 if (error) {
6950                         goto out_now;
6951                 }
6952         }
6953         /* Now do we connect? */
6954         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6955             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6956                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6957                 error = EINVAL;
6958                 goto out_now;
6959         }
6960         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6961             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6962                 /* We are already connected AND the TCP model */
6963                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6964                 error = EADDRINUSE;
6965                 goto out_now;
6966         }
6967         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6968                 SCTP_INP_RLOCK(inp);
6969                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6970                 SCTP_INP_RUNLOCK(inp);
6971         } else {
6972                 /*
6973                  * We increment here since sctp_findassociation_ep_addr()
6974                  * will do a decrement if it finds the stcb as long as the
6975                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6976                  */
6977                 SCTP_INP_INCR_REF(inp);
6978                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6979                 if (stcb == NULL) {
6980                         SCTP_INP_DECR_REF(inp);
6981                 } else {
6982                         SCTP_TCB_UNLOCK(stcb);
6983                 }
6984         }
6985         if (stcb != NULL) {
6986                 /* Already have or am bring up an association */
6987                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6988                 error = EALREADY;
6989                 goto out_now;
6990         }
6991
6992         vrf_id = inp->def_vrf_id;
6993         /* We are GOOD to go */
6994         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
6995             inp->sctp_ep.pre_open_stream_count,
6996             inp->sctp_ep.port, p);
6997         if (stcb == NULL) {
6998                 /* Gak! no memory */
6999                 goto out_now;
7000         }
7001         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7002                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7003                 /* Set the connected flag so we can queue data */
7004                 soisconnecting(so);
7005         }
7006         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
7007         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7008
7009         /* initialize authentication parameters for the assoc */
7010         sctp_initialize_auth_params(inp, stcb);
7011
7012         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7013         SCTP_TCB_UNLOCK(stcb);
7014 out_now:
7015         if (create_lock_on) {
7016                 SCTP_ASOC_CREATE_UNLOCK(inp);
7017         }
7018
7019         SCTP_INP_DECR_REF(inp);
7020         return (error);
7021 }
7022 #endif
7023
7024 int
7025 sctp_listen(struct socket *so, int backlog, struct thread *p)
7026 {
7027         /*
7028          * Note this module depends on the protocol processing being called
7029          * AFTER any socket level flags and backlog are applied to the
7030          * socket. The traditional way that the socket flags are applied is
7031          * AFTER protocol processing. We have made a change to the
7032          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7033          * place if the socket API for SCTP is to work properly.
7034          */
7035
7036         int error = 0;
7037         struct sctp_inpcb *inp;
7038
7039         inp = (struct sctp_inpcb *)so->so_pcb;
7040         if (inp == NULL) {
7041                 /* I made the same as TCP since we are not setup? */
7042                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7043                 return (ECONNRESET);
7044         }
7045         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7046                 /* See if we have a listener */
7047                 struct sctp_inpcb *tinp;
7048                 union sctp_sockstore store;
7049
7050                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7051                         /* not bound all */
7052                         struct sctp_laddr *laddr;
7053
7054                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7055                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7056                                 switch (store.sa.sa_family) {
7057 #ifdef INET
7058                                 case AF_INET:
7059                                         store.sin.sin_port = inp->sctp_lport;
7060                                         break;
7061 #endif
7062 #ifdef INET6
7063                                 case AF_INET6:
7064                                         store.sin6.sin6_port = inp->sctp_lport;
7065                                         break;
7066 #endif
7067                                 default:
7068                                         break;
7069                                 }
7070                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7071                                 if (tinp && (tinp != inp) &&
7072                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7073                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7074                                     (SCTP_IS_LISTENING(tinp))) {
7075                                         /*
7076                                          * we have a listener already and
7077                                          * its not this inp.
7078                                          */
7079                                         SCTP_INP_DECR_REF(tinp);
7080                                         return (EADDRINUSE);
7081                                 } else if (tinp) {
7082                                         SCTP_INP_DECR_REF(tinp);
7083                                 }
7084                         }
7085                 } else {
7086                         /* Setup a local addr bound all */
7087                         memset(&store, 0, sizeof(store));
7088 #ifdef INET6
7089                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7090                                 store.sa.sa_family = AF_INET6;
7091                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7092                         }
7093 #endif
7094 #ifdef INET
7095                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7096                                 store.sa.sa_family = AF_INET;
7097                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7098                         }
7099 #endif
7100                         switch (store.sa.sa_family) {
7101 #ifdef INET
7102                         case AF_INET:
7103                                 store.sin.sin_port = inp->sctp_lport;
7104                                 break;
7105 #endif
7106 #ifdef INET6
7107                         case AF_INET6:
7108                                 store.sin6.sin6_port = inp->sctp_lport;
7109                                 break;
7110 #endif
7111                         default:
7112                                 break;
7113                         }
7114                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7115                         if (tinp && (tinp != inp) &&
7116                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7117                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7118                             (SCTP_IS_LISTENING(tinp))) {
7119                                 /*
7120                                  * we have a listener already and its not
7121                                  * this inp.
7122                                  */
7123                                 SCTP_INP_DECR_REF(tinp);
7124                                 return (EADDRINUSE);
7125                         } else if (tinp) {
7126                                 SCTP_INP_DECR_REF(tinp);
7127                         }
7128                 }
7129         }
7130         SCTP_INP_RLOCK(inp);
7131 #ifdef SCTP_LOCK_LOGGING
7132         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7133                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7134         }
7135 #endif
7136         SOCK_LOCK(so);
7137         error = solisten_proto_check(so);
7138         SOCK_UNLOCK(so);
7139         if (error) {
7140                 SCTP_INP_RUNLOCK(inp);
7141                 return (error);
7142         }
7143         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7144             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7145                 /*
7146                  * The unlucky case - We are in the tcp pool with this guy.
7147                  * - Someone else is in the main inp slot. - We must move
7148                  * this guy (the listener) to the main slot - We must then
7149                  * move the guy that was listener to the TCP Pool.
7150                  */
7151                 if (sctp_swap_inpcb_for_listen(inp)) {
7152                         SCTP_INP_RUNLOCK(inp);
7153                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7154                         return (EADDRINUSE);
7155                 }
7156         }
7157
7158         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7159             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7160                 /* We are already connected AND the TCP model */
7161                 SCTP_INP_RUNLOCK(inp);
7162                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7163                 return (EADDRINUSE);
7164         }
7165         SCTP_INP_RUNLOCK(inp);
7166         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7167                 /* We must do a bind. */
7168                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7169                         /* bind error, probably perm */
7170                         return (error);
7171                 }
7172         }
7173         SCTP_INP_WLOCK(inp);
7174         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7175                 SOCK_LOCK(so);
7176                 solisten_proto(so, backlog);
7177                 SOCK_UNLOCK(so);
7178         }
7179         if (backlog > 0) {
7180                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7181         } else {
7182                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7183         }
7184         SCTP_INP_WUNLOCK(inp);
7185         return (error);
7186 }
7187
7188 static int sctp_defered_wakeup_cnt = 0;
7189
7190 int
7191 sctp_accept(struct socket *so, struct sockaddr **addr)
7192 {
7193         struct sctp_tcb *stcb;
7194         struct sctp_inpcb *inp;
7195         union sctp_sockstore store;
7196 #ifdef INET6
7197         int error;
7198 #endif
7199         inp = (struct sctp_inpcb *)so->so_pcb;
7200
7201         if (inp == NULL) {
7202                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7203                 return (ECONNRESET);
7204         }
7205         SCTP_INP_RLOCK(inp);
7206         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7207                 SCTP_INP_RUNLOCK(inp);
7208                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7209                 return (EOPNOTSUPP);
7210         }
7211         if (so->so_state & SS_ISDISCONNECTED) {
7212                 SCTP_INP_RUNLOCK(inp);
7213                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7214                 return (ECONNABORTED);
7215         }
7216         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7217         if (stcb == NULL) {
7218                 SCTP_INP_RUNLOCK(inp);
7219                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7220                 return (ECONNRESET);
7221         }
7222         SCTP_TCB_LOCK(stcb);
7223         SCTP_INP_RUNLOCK(inp);
7224         store = stcb->asoc.primary_destination->ro._l_addr;
7225         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7226         SCTP_TCB_UNLOCK(stcb);
7227         switch (store.sa.sa_family) {
7228 #ifdef INET
7229         case AF_INET:
7230                 {
7231                         struct sockaddr_in *sin;
7232
7233                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7234                         if (sin == NULL)
7235                                 return (ENOMEM);
7236                         sin->sin_family = AF_INET;
7237                         sin->sin_len = sizeof(*sin);
7238                         sin->sin_port = store.sin.sin_port;
7239                         sin->sin_addr = store.sin.sin_addr;
7240                         *addr = (struct sockaddr *)sin;
7241                         break;
7242                 }
7243 #endif
7244 #ifdef INET6
7245         case AF_INET6:
7246                 {
7247                         struct sockaddr_in6 *sin6;
7248
7249                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7250                         if (sin6 == NULL)
7251                                 return (ENOMEM);
7252                         sin6->sin6_family = AF_INET6;
7253                         sin6->sin6_len = sizeof(*sin6);
7254                         sin6->sin6_port = store.sin6.sin6_port;
7255                         sin6->sin6_addr = store.sin6.sin6_addr;
7256                         if ((error = sa6_recoverscope(sin6)) != 0) {
7257                                 SCTP_FREE_SONAME(sin6);
7258                                 return (error);
7259                         }
7260                         *addr = (struct sockaddr *)sin6;
7261                         break;
7262                 }
7263 #endif
7264         default:
7265                 /* TSNH */
7266                 break;
7267         }
7268         /* Wake any delayed sleep action */
7269         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7270                 SCTP_INP_WLOCK(inp);
7271                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7272                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7273                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7274                         SCTP_INP_WUNLOCK(inp);
7275                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7276                         if (sowriteable(inp->sctp_socket)) {
7277                                 sowwakeup_locked(inp->sctp_socket);
7278                         } else {
7279                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7280                         }
7281                         SCTP_INP_WLOCK(inp);
7282                 }
7283                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7284                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7285                         SCTP_INP_WUNLOCK(inp);
7286                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7287                         if (soreadable(inp->sctp_socket)) {
7288                                 sctp_defered_wakeup_cnt++;
7289                                 sorwakeup_locked(inp->sctp_socket);
7290                         } else {
7291                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7292                         }
7293                         SCTP_INP_WLOCK(inp);
7294                 }
7295                 SCTP_INP_WUNLOCK(inp);
7296         }
7297         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7298                 SCTP_TCB_LOCK(stcb);
7299                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7300                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7301         }
7302         return (0);
7303 }
7304
7305 #ifdef INET
7306 int
7307 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7308 {
7309         struct sockaddr_in *sin;
7310         uint32_t vrf_id;
7311         struct sctp_inpcb *inp;
7312         struct sctp_ifa *sctp_ifa;
7313
7314         /*
7315          * Do the malloc first in case it blocks.
7316          */
7317         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7318         if (sin == NULL)
7319                 return (ENOMEM);
7320         sin->sin_family = AF_INET;
7321         sin->sin_len = sizeof(*sin);
7322         inp = (struct sctp_inpcb *)so->so_pcb;
7323         if (!inp) {
7324                 SCTP_FREE_SONAME(sin);
7325                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7326                 return (ECONNRESET);
7327         }
7328         SCTP_INP_RLOCK(inp);
7329         sin->sin_port = inp->sctp_lport;
7330         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7331                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7332                         struct sctp_tcb *stcb;
7333                         struct sockaddr_in *sin_a;
7334                         struct sctp_nets *net;
7335                         int fnd;
7336
7337                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7338                         if (stcb == NULL) {
7339                                 goto notConn;
7340                         }
7341                         fnd = 0;
7342                         sin_a = NULL;
7343                         SCTP_TCB_LOCK(stcb);
7344                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7345                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7346                                 if (sin_a == NULL)
7347                                         /* this will make coverity happy */
7348                                         continue;
7349
7350                                 if (sin_a->sin_family == AF_INET) {
7351                                         fnd = 1;
7352                                         break;
7353                                 }
7354                         }
7355                         if ((!fnd) || (sin_a == NULL)) {
7356                                 /* punt */
7357                                 SCTP_TCB_UNLOCK(stcb);
7358                                 goto notConn;
7359                         }
7360
7361                         vrf_id = inp->def_vrf_id;
7362                         sctp_ifa = sctp_source_address_selection(inp,
7363                             stcb,
7364                             (sctp_route_t *)&net->ro,
7365                             net, 0, vrf_id);
7366                         if (sctp_ifa) {
7367                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7368                                 sctp_free_ifa(sctp_ifa);
7369                         }
7370                         SCTP_TCB_UNLOCK(stcb);
7371                 } else {
7372                         /* For the bound all case you get back 0 */
7373         notConn:
7374                         sin->sin_addr.s_addr = 0;
7375                 }
7376
7377         } else {
7378                 /* Take the first IPv4 address in the list */
7379                 struct sctp_laddr *laddr;
7380                 int fnd = 0;
7381
7382                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7383                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7384                                 struct sockaddr_in *sin_a;
7385
7386                                 sin_a = &laddr->ifa->address.sin;
7387                                 sin->sin_addr = sin_a->sin_addr;
7388                                 fnd = 1;
7389                                 break;
7390                         }
7391                 }
7392                 if (!fnd) {
7393                         SCTP_FREE_SONAME(sin);
7394                         SCTP_INP_RUNLOCK(inp);
7395                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7396                         return (ENOENT);
7397                 }
7398         }
7399         SCTP_INP_RUNLOCK(inp);
7400         (*addr) = (struct sockaddr *)sin;
7401         return (0);
7402 }
7403
7404 int
7405 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7406 {
7407         struct sockaddr_in *sin;
7408         int fnd;
7409         struct sockaddr_in *sin_a;
7410         struct sctp_inpcb *inp;
7411         struct sctp_tcb *stcb;
7412         struct sctp_nets *net;
7413
7414         /* Do the malloc first in case it blocks. */
7415         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7416         if (sin == NULL)
7417                 return (ENOMEM);
7418         sin->sin_family = AF_INET;
7419         sin->sin_len = sizeof(*sin);
7420
7421         inp = (struct sctp_inpcb *)so->so_pcb;
7422         if ((inp == NULL) ||
7423             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7424                 /* UDP type and listeners will drop out here */
7425                 SCTP_FREE_SONAME(sin);
7426                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7427                 return (ENOTCONN);
7428         }
7429         SCTP_INP_RLOCK(inp);
7430         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7431         if (stcb) {
7432                 SCTP_TCB_LOCK(stcb);
7433         }
7434         SCTP_INP_RUNLOCK(inp);
7435         if (stcb == NULL) {
7436                 SCTP_FREE_SONAME(sin);
7437                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7438                 return (ECONNRESET);
7439         }
7440         fnd = 0;
7441         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7442                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7443                 if (sin_a->sin_family == AF_INET) {
7444                         fnd = 1;
7445                         sin->sin_port = stcb->rport;
7446                         sin->sin_addr = sin_a->sin_addr;
7447                         break;
7448                 }
7449         }
7450         SCTP_TCB_UNLOCK(stcb);
7451         if (!fnd) {
7452                 /* No IPv4 address */
7453                 SCTP_FREE_SONAME(sin);
7454                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7455                 return (ENOENT);
7456         }
7457         (*addr) = (struct sockaddr *)sin;
7458         return (0);
7459 }
7460
7461 struct pr_usrreqs sctp_usrreqs = {
7462         .pru_abort = sctp_abort,
7463         .pru_accept = sctp_accept,
7464         .pru_attach = sctp_attach,
7465         .pru_bind = sctp_bind,
7466         .pru_connect = sctp_connect,
7467         .pru_control = in_control,
7468         .pru_close = sctp_close,
7469         .pru_detach = sctp_close,
7470         .pru_sopoll = sopoll_generic,
7471         .pru_flush = sctp_flush,
7472         .pru_disconnect = sctp_disconnect,
7473         .pru_listen = sctp_listen,
7474         .pru_peeraddr = sctp_peeraddr,
7475         .pru_send = sctp_sendm,
7476         .pru_shutdown = sctp_shutdown,
7477         .pru_sockaddr = sctp_ingetaddr,
7478         .pru_sosend = sctp_sosend,
7479         .pru_soreceive = sctp_soreceive
7480 };
7481 #endif