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 #include <sys/eventhandler.h>
  57
  58 extern const struct sctp_cc_functions sctp_cc_functions[];
  59 extern const struct sctp_ss_functions sctp_ss_functions[];
  60
  61 void
  62 sctp_init(void)
  63 {
  64         u_long sb_max_adj;
  65
  66         /* Initialize and modify the sysctled variables */
  67         sctp_init_sysctls();
  68         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  69                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  70         /*
  71          * Allow a user to take no more than 1/2 the number of clusters or
  72          * the SB_MAX, whichever is smaller, for the send window.
  73          */
  74         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  75         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  76             (((uint32_t)nmbclusters / 2) * MCLBYTES));
  77         /*
  78          * Now for the recv window, should we take the same amount? or
  79          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  80          * now I will just copy.
  81          */
  82         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  90 #endif
  91         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  92             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  93 }
  94
  95 #ifdef VIMAGE
  96 static void
  97 sctp_finish(void *unused __unused)
  98 {
  99         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
 100         sctp_pcb_finish();
 101 }
 102
 103 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 104 #endif
 105
 106 void
 107 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 108 {
 109         struct sctp_tmit_chunk *chk;
 110         uint16_t overhead;
 111
 112         /* Adjust that too */
 113         stcb->asoc.smallest_mtu = nxtsz;
 114         /* now off to subtract IP_DF flag if needed */
 115         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 116         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 117                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 118         }
 119         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 120                 if ((chk->send_size + overhead) > nxtsz) {
 121                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 122                 }
 123         }
 124         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 125                 if ((chk->send_size + overhead) > nxtsz) {
 126                         /*
 127                          * For this guy we also mark for immediate resend
 128                          * since we sent to big of chunk
 129                          */
 130                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 131                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 132                                 sctp_flight_size_decrease(chk);
 133                                 sctp_total_flight_decrease(stcb, chk);
 134                                 chk->sent = SCTP_DATAGRAM_RESEND;
 135                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 136                                 chk->rec.data.doing_fast_retransmit = 0;
 137                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 138                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 139                                             chk->whoTo->flight_size,
 140                                             chk->book_size,
 141                                             (uint32_t)(uintptr_t)chk->whoTo,
 142                                             chk->rec.data.tsn);
 143                                 }
 144                                 /* Clear any time so NO RTT is being done */
 145                                 if (chk->do_rtt == 1) {
 146                                         chk->do_rtt = 0;
 147                                         chk->whoTo->rto_needed = 1;
 148                                 }
 149                         }
 150                 }
 151         }
 152 }
 153
 154 #ifdef INET
 155 void
 156 sctp_notify(struct sctp_inpcb *inp,
 157     struct sctp_tcb *stcb,
 158     struct sctp_nets *net,
 159     uint8_t icmp_type,
 160     uint8_t icmp_code,
 161     uint16_t ip_len,
 162     uint32_t next_mtu)
 163 {
 164         int timer_stopped;
 165
 166         if (icmp_type != ICMP_UNREACH) {
 167                 /* We only care about unreachable */
 168                 SCTP_TCB_UNLOCK(stcb);
 169                 return;
 170         }
 171         if ((icmp_code == ICMP_UNREACH_NET) ||
 172             (icmp_code == ICMP_UNREACH_HOST) ||
 173             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 174             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 175             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 176             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 177             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 178             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 179                 /* Mark the net unreachable. */
 180                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 181                         /* OK, that destination is NOT reachable. */
 182                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 183                         net->dest_state &= ~SCTP_ADDR_PF;
 184                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 185                             stcb, 0,
 186                             (void *)net, SCTP_SO_NOT_LOCKED);
 187                 }
 188                 SCTP_TCB_UNLOCK(stcb);
 189         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 190             (icmp_code == ICMP_UNREACH_PORT)) {
 191                 /* Treat it like an ABORT. */
 192                 sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
 193                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 194                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 195                 /* no need to unlock here, since the TCB is gone */
 196         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 197                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 198                         SCTP_TCB_UNLOCK(stcb);
 199                         return;
 200                 }
 201                 /* Find the next (smaller) MTU */
 202                 if (next_mtu == 0) {
 203                         /*
 204                          * Old type router that does not tell us what the
 205                          * next MTU is. Rats we will have to guess (in a
 206                          * educated fashion of course).
 207                          */
 208                         next_mtu = sctp_get_prev_mtu(ip_len);
 209                 }
 210                 /* Stop the PMTU timer. */
 211                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 212                         timer_stopped = 1;
 213                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 214                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 215                 } else {
 216                         timer_stopped = 0;
 217                 }
 218                 /* Update the path MTU. */
 219                 if (net->port) {
 220                         next_mtu -= sizeof(struct udphdr);
 221                 }
 222                 if (net->mtu > next_mtu) {
 223                         net->mtu = next_mtu;
 224                         if (net->port) {
 225                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 226                         } else {
 227                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 228                         }
 229                 }
 230                 /* Update the association MTU */
 231                 if (stcb->asoc.smallest_mtu > next_mtu) {
 232                         sctp_pathmtu_adjustment(stcb, next_mtu);
 233                 }
 234                 /* Finally, start the PMTU timer if it was running before. */
 235                 if (timer_stopped) {
 236                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 237                 }
 238                 SCTP_TCB_UNLOCK(stcb);
 239         } else {
 240                 SCTP_TCB_UNLOCK(stcb);
 241         }
 242 }
 243
 244 void
 245 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 246 {
 247         struct ip *outer_ip;
 248         struct ip *inner_ip;
 249         struct sctphdr *sh;
 250         struct icmp *icmp;
 251         struct sctp_inpcb *inp;
 252         struct sctp_tcb *stcb;
 253         struct sctp_nets *net;
 254         struct sctp_init_chunk *ch;
 255         struct sockaddr_in src, dst;
 256
 257         if (sa->sa_family != AF_INET ||
 258             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 259                 return;
 260         }
 261         if (PRC_IS_REDIRECT(cmd)) {
 262                 vip = NULL;
 263         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 264                 return;
 265         }
 266         if (vip != NULL) {
 267                 inner_ip = (struct ip *)vip;
 268                 icmp = (struct icmp *)((caddr_t)inner_ip -
 269                     (sizeof(struct icmp) - sizeof(struct ip)));
 270                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 271                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 272                 memset(&src, 0, sizeof(struct sockaddr_in));
 273                 src.sin_family = AF_INET;
 274                 src.sin_len = sizeof(struct sockaddr_in);
 275                 src.sin_port = sh->src_port;
 276                 src.sin_addr = inner_ip->ip_src;
 277                 memset(&dst, 0, sizeof(struct sockaddr_in));
 278                 dst.sin_family = AF_INET;
 279                 dst.sin_len = sizeof(struct sockaddr_in);
 280                 dst.sin_port = sh->dest_port;
 281                 dst.sin_addr = inner_ip->ip_dst;
 282                 /*
 283                  * 'dst' holds the dest of the packet that failed to be
 284                  * sent. 'src' holds our local endpoint address. Thus we
 285                  * reverse the dst and the src in the lookup.
 286                  */
 287                 inp = NULL;
 288                 net = NULL;
 289                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 290                     (struct sockaddr *)&src,
 291                     &inp, &net, 1,
 292                     SCTP_DEFAULT_VRFID);
 293                 if ((stcb != NULL) &&
 294                     (net != NULL) &&
 295                     (inp != NULL)) {
 296                         /* Check the verification tag */
 297                         if (ntohl(sh->v_tag) != 0) {
 298                                 /*
 299                                  * This must be the verification tag used
 300                                  * for sending out packets. We don't
 301                                  * consider packets reflecting the
 302                                  * verification tag.
 303                                  */
 304                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 305                                         SCTP_TCB_UNLOCK(stcb);
 306                                         return;
 307                                 }
 308                         } else {
 309                                 if (ntohs(outer_ip->ip_len) >=
 310                                     sizeof(struct ip) +
 311                                     8 + (inner_ip->ip_hl << 2) + 20) {
 312                                         /*
 313                                          * In this case we can check if we
 314                                          * got an INIT chunk and if the
 315                                          * initiate tag matches.
 316                                          */
 317                                         ch = (struct sctp_init_chunk *)(sh + 1);
 318                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 319                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 320                                                 SCTP_TCB_UNLOCK(stcb);
 321                                                 return;
 322                                         }
 323                                 } else {
 324                                         SCTP_TCB_UNLOCK(stcb);
 325                                         return;
 326                                 }
 327                         }
 328                         sctp_notify(inp, stcb, net,
 329                             icmp->icmp_type,
 330                             icmp->icmp_code,
 331                             ntohs(inner_ip->ip_len),
 332                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 333                 } else {
 334                         if ((stcb == NULL) && (inp != NULL)) {
 335                                 /* reduce ref-count */
 336                                 SCTP_INP_WLOCK(inp);
 337                                 SCTP_INP_DECR_REF(inp);
 338                                 SCTP_INP_WUNLOCK(inp);
 339                         }
 340                         if (stcb) {
 341                                 SCTP_TCB_UNLOCK(stcb);
 342                         }
 343                 }
 344         }
 345         return;
 346 }
 347 #endif
 348
 349 static int
 350 sctp_getcred(SYSCTL_HANDLER_ARGS)
 351 {
 352         struct xucred xuc;
 353         struct sockaddr_in addrs[2];
 354         struct sctp_inpcb *inp;
 355         struct sctp_nets *net;
 356         struct sctp_tcb *stcb;
 357         int error;
 358         uint32_t vrf_id;
 359
 360         /* FIX, for non-bsd is this right? */
 361         vrf_id = SCTP_DEFAULT_VRFID;
 362
 363         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 364
 365         if (error)
 366                 return (error);
 367
 368         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 369         if (error)
 370                 return (error);
 371
 372         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 373             sintosa(&addrs[0]),
 374             &inp, &net, 1, vrf_id);
 375         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 376                 if ((inp != NULL) && (stcb == NULL)) {
 377                         /* reduce ref-count */
 378                         SCTP_INP_WLOCK(inp);
 379                         SCTP_INP_DECR_REF(inp);
 380                         goto cred_can_cont;
 381                 }
 382
 383                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 384                 error = ENOENT;
 385                 goto out;
 386         }
 387         SCTP_TCB_UNLOCK(stcb);
 388         /*
 389          * We use the write lock here, only since in the error leg we need
 390          * it. If we used RLOCK, then we would have to
 391          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 392          * Better to use higher wlock.
 393          */
 394         SCTP_INP_WLOCK(inp);
 395 cred_can_cont:
 396         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 397         if (error) {
 398                 SCTP_INP_WUNLOCK(inp);
 399                 goto out;
 400         }
 401         cru2x(inp->sctp_socket->so_cred, &xuc);
 402         SCTP_INP_WUNLOCK(inp);
 403         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 404 out:
 405         return (error);
 406 }
 407
 408 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 409     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 410     0, 0, sctp_getcred, "S,ucred",
 411     "Get the ucred of a SCTP connection");
 412
 413 #ifdef INET
 414 static void
 415 sctp_abort(struct socket *so)
 416 {
 417         struct epoch_tracker et;
 418         struct sctp_inpcb *inp;
 419
 420         inp = (struct sctp_inpcb *)so->so_pcb;
 421         if (inp == NULL) {
 422                 return;
 423         }
 424
 425         SCTP_INP_WLOCK(inp);
 426         NET_EPOCH_ENTER(et);
 427 #ifdef SCTP_LOG_CLOSING
 428         sctp_log_closing(inp, NULL, 17);
 429 #endif
 430         if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
 431                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 432 #ifdef SCTP_LOG_CLOSING
 433                 sctp_log_closing(inp, NULL, 16);
 434 #endif
 435                 SCTP_INP_WUNLOCK(inp);
 436                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 437                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 438                 SOCK_LOCK(so);
 439                 SCTP_SB_CLEAR(so->so_snd);
 440                 /*
 441                  * same for the rcv ones, they are only here for the
 442                  * accounting/select.
 443                  */
 444                 SCTP_SB_CLEAR(so->so_rcv);
 445
 446                 /* Now null out the reference, we are completely detached. */
 447                 so->so_pcb = NULL;
 448                 SOCK_UNLOCK(so);
 449         } else {
 450                 SCTP_INP_WUNLOCK(inp);
 451         }
 452         NET_EPOCH_EXIT(et);
 453 }
 454
 455 static int
 456 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 457 {
 458         struct sctp_inpcb *inp;
 459         struct inpcb *ip_inp;
 460         int error;
 461         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 462
 463         inp = (struct sctp_inpcb *)so->so_pcb;
 464         if (inp != NULL) {
 465                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 466                 return (EINVAL);
 467         }
 468         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 469                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 470                 if (error) {
 471                         return (error);
 472                 }
 473         }
 474         error = sctp_inpcb_alloc(so, vrf_id);
 475         if (error) {
 476                 return (error);
 477         }
 478         inp = (struct sctp_inpcb *)so->so_pcb;
 479         SCTP_INP_WLOCK(inp);
 480         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 481         ip_inp = &inp->ip_inp.inp;
 482         ip_inp->inp_vflag |= INP_IPV4;
 483         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 484         SCTP_INP_WUNLOCK(inp);
 485         return (0);
 486 }
 487
 488 static int
 489 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 490 {
 491         struct sctp_inpcb *inp;
 492
 493         inp = (struct sctp_inpcb *)so->so_pcb;
 494         if (inp == NULL) {
 495                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 496                 return (EINVAL);
 497         }
 498         if (addr != NULL) {
 499                 if ((addr->sa_family != AF_INET) ||
 500                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 501                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 502                         return (EINVAL);
 503                 }
 504         }
 505         return (sctp_inpcb_bind(so, addr, NULL, p));
 506 }
 507
 508 #endif
 509 void
 510 sctp_close(struct socket *so)
 511 {
 512         struct epoch_tracker et;
 513         struct sctp_inpcb *inp;
 514
 515         inp = (struct sctp_inpcb *)so->so_pcb;
 516         if (inp == NULL)
 517                 return;
 518
 519         /*
 520          * Inform all the lower layer assoc that we are done.
 521          */
 522         SCTP_INP_WLOCK(inp);
 523         NET_EPOCH_ENTER(et);
 524 #ifdef SCTP_LOG_CLOSING
 525         sctp_log_closing(inp, NULL, 17);
 526 #endif
 527         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 528                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 529                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 530                     (so->so_rcv.sb_cc > 0)) {
 531 #ifdef SCTP_LOG_CLOSING
 532                         sctp_log_closing(inp, NULL, 13);
 533 #endif
 534                         SCTP_INP_WUNLOCK(inp);
 535                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 536                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 537                 } else {
 538 #ifdef SCTP_LOG_CLOSING
 539                         sctp_log_closing(inp, NULL, 14);
 540 #endif
 541                         SCTP_INP_WUNLOCK(inp);
 542                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 543                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 544                 }
 545                 /*
 546                  * The socket is now detached, no matter what the state of
 547                  * the SCTP association.
 548                  */
 549                 SOCK_LOCK(so);
 550                 SCTP_SB_CLEAR(so->so_snd);
 551                 /*
 552                  * same for the rcv ones, they are only here for the
 553                  * accounting/select.
 554                  */
 555                 SCTP_SB_CLEAR(so->so_rcv);
 556
 557                 /* Now null out the reference, we are completely detached. */
 558                 so->so_pcb = NULL;
 559                 SOCK_UNLOCK(so);
 560         } else {
 561                 SCTP_INP_WUNLOCK(inp);
 562         }
 563         NET_EPOCH_EXIT(et);
 564 }
 565
 566 int
 567 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 568     struct mbuf *control, struct thread *p);
 569
 570 int
 571 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 572     struct mbuf *control, struct thread *p)
 573 {
 574         struct sctp_inpcb *inp;
 575         int error;
 576
 577         inp = (struct sctp_inpcb *)so->so_pcb;
 578         if (inp == NULL) {
 579                 if (control) {
 580                         sctp_m_freem(control);
 581                         control = NULL;
 582                 }
 583                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 584                 sctp_m_freem(m);
 585                 return (EINVAL);
 586         }
 587         /* Got to have an to address if we are NOT a connected socket */
 588         if ((addr == NULL) &&
 589             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 590             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 591                 goto connected_type;
 592         }
 593
 594         error = 0;
 595         if (addr == NULL) {
 596                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 597                 error = EDESTADDRREQ;
 598         } else if (addr->sa_family != AF_INET) {
 599                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 600                 error = EAFNOSUPPORT;
 601         } else if (addr->sa_len != sizeof(struct sockaddr_in)) {
 602                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 603                 error = EINVAL;
 604         }
 605         if (error != 0) {
 606                 sctp_m_freem(m);
 607                 if (control) {
 608                         sctp_m_freem(control);
 609                         control = NULL;
 610                 }
 611                 return (error);
 612         }
 613 connected_type:
 614         /* now what about control */
 615         if (control) {
 616                 if (inp->control) {
 617                         sctp_m_freem(inp->control);
 618                         inp->control = NULL;
 619                 }
 620                 inp->control = control;
 621         }
 622         /* Place the data */
 623         if (inp->pkt) {
 624                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 625                 inp->pkt_last = m;
 626         } else {
 627                 inp->pkt_last = inp->pkt = m;
 628         }
 629         if (
 630         /* FreeBSD uses a flag passed */
 631             ((flags & PRUS_MORETOCOME) == 0)
 632             ) {
 633                 /*
 634                  * note with the current version this code will only be used
 635                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 636                  * re-defining sosend to use the sctp_sosend. One can
 637                  * optionally switch back to this code (by changing back the
 638                  * definitions) but this is not advisable. This code is used
 639                  * by FreeBSD when sending a file with sendfile() though.
 640                  */
 641                 struct epoch_tracker et;
 642                 int ret;
 643
 644                 NET_EPOCH_ENTER(et);
 645                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 646                 NET_EPOCH_EXIT(et);
 647                 inp->pkt = NULL;
 648                 inp->control = NULL;
 649                 return (ret);
 650         } else {
 651                 return (0);
 652         }
 653 }
 654
 655 int
 656 sctp_disconnect(struct socket *so)
 657 {
 658         struct sctp_inpcb *inp;
 659
 660         inp = (struct sctp_inpcb *)so->so_pcb;
 661         if (inp == NULL) {
 662                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 663                 return (ENOTCONN);
 664         }
 665         SCTP_INP_RLOCK(inp);
 666         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 667             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 668                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 669                         /* No connection */
 670                         SCTP_INP_RUNLOCK(inp);
 671                         return (0);
 672                 } else {
 673                         struct epoch_tracker et;
 674                         struct sctp_association *asoc;
 675                         struct sctp_tcb *stcb;
 676
 677                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 678                         if (stcb == NULL) {
 679                                 SCTP_INP_RUNLOCK(inp);
 680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 681                                 return (EINVAL);
 682                         }
 683                         SCTP_TCB_LOCK(stcb);
 684                         asoc = &stcb->asoc;
 685                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 686                                 /* We are about to be freed, out of here */
 687                                 SCTP_TCB_UNLOCK(stcb);
 688                                 SCTP_INP_RUNLOCK(inp);
 689                                 return (0);
 690                         }
 691                         NET_EPOCH_ENTER(et);
 692                         if (((so->so_options & SO_LINGER) &&
 693                             (so->so_linger == 0)) ||
 694                             (so->so_rcv.sb_cc > 0)) {
 695                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 696                                         /* Left with Data unread */
 697                                         struct mbuf *op_err;
 698
 699                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 700                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 701                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 702                                 }
 703                                 SCTP_INP_RUNLOCK(inp);
 704                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 705                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 706                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 707                                 }
 708                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 709                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 710                                 /* No unlock tcb assoc is gone */
 711                                 NET_EPOCH_EXIT(et);
 712                                 return (0);
 713                         }
 714                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 715                             TAILQ_EMPTY(&asoc->sent_queue) &&
 716                             (asoc->stream_queue_cnt == 0)) {
 717                                 /* there is nothing queued to send, so done */
 718                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 719                                         goto abort_anyway;
 720                                 }
 721                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 722                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 723                                         /* only send SHUTDOWN 1st time thru */
 724                                         struct sctp_nets *netp;
 725
 726                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 727                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 728                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 729                                         }
 730                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 731                                         sctp_stop_timers_for_shutdown(stcb);
 732                                         if (stcb->asoc.alternate) {
 733                                                 netp = stcb->asoc.alternate;
 734                                         } else {
 735                                                 netp = stcb->asoc.primary_destination;
 736                                         }
 737                                         sctp_send_shutdown(stcb, netp);
 738                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 739                                             stcb->sctp_ep, stcb, netp);
 740                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 741                                             stcb->sctp_ep, stcb, NULL);
 742                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 743                                 }
 744                         } else {
 745                                 /*
 746                                  * we still got (or just got) data to send,
 747                                  * so set SHUTDOWN_PENDING
 748                                  */
 749                                 /*
 750                                  * XXX sockets draft says that SCTP_EOF
 751                                  * should be sent with no data. currently,
 752                                  * we will allow user data to be sent first
 753                                  * and move to SHUTDOWN-PENDING
 754                                  */
 755                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 756                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 757                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 758                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 759                                 }
 760                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 761                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 762                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 763                                         struct mbuf *op_err;
 764
 765                         abort_anyway:
 766                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 767                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 768                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 769                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 770                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 771                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 772                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 773                                         }
 774                                         SCTP_INP_RUNLOCK(inp);
 775                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 776                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 777                                         NET_EPOCH_EXIT(et);
 778                                         return (0);
 779                                 } else {
 780                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 781                                 }
 782                         }
 783                         soisdisconnecting(so);
 784                         NET_EPOCH_EXIT(et);
 785                         SCTP_TCB_UNLOCK(stcb);
 786                         SCTP_INP_RUNLOCK(inp);
 787                         return (0);
 788                 }
 789                 /* not reached */
 790         } else {
 791                 /* UDP model does not support this */
 792                 SCTP_INP_RUNLOCK(inp);
 793                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 794                 return (EOPNOTSUPP);
 795         }
 796 }
 797
 798 int
 799 sctp_flush(struct socket *so, int how)
 800 {
 801         /*
 802          * We will just clear out the values and let subsequent close clear
 803          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 804          * they will not be able to read the data, the socket will block
 805          * that from happening.
 806          */
 807         struct sctp_inpcb *inp;
 808
 809         inp = (struct sctp_inpcb *)so->so_pcb;
 810         if (inp == NULL) {
 811                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 812                 return (EINVAL);
 813         }
 814         SCTP_INP_RLOCK(inp);
 815         /* For the 1 to many model this does nothing */
 816         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 817                 SCTP_INP_RUNLOCK(inp);
 818                 return (0);
 819         }
 820         SCTP_INP_RUNLOCK(inp);
 821         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 822                 /*
 823                  * First make sure the sb will be happy, we don't use these
 824                  * except maybe the count
 825                  */
 826                 SCTP_INP_WLOCK(inp);
 827                 SCTP_INP_READ_LOCK(inp);
 828                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 829                 SCTP_INP_READ_UNLOCK(inp);
 830                 SCTP_INP_WUNLOCK(inp);
 831                 so->so_rcv.sb_cc = 0;
 832                 so->so_rcv.sb_mbcnt = 0;
 833                 so->so_rcv.sb_mb = NULL;
 834         }
 835         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 836                 /*
 837                  * First make sure the sb will be happy, we don't use these
 838                  * except maybe the count
 839                  */
 840                 so->so_snd.sb_cc = 0;
 841                 so->so_snd.sb_mbcnt = 0;
 842                 so->so_snd.sb_mb = NULL;
 843         }
 844         return (0);
 845 }
 846
 847 int
 848 sctp_shutdown(struct socket *so)
 849 {
 850         struct sctp_inpcb *inp;
 851
 852         inp = (struct sctp_inpcb *)so->so_pcb;
 853         if (inp == NULL) {
 854                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 855                 return (EINVAL);
 856         }
 857         SCTP_INP_RLOCK(inp);
 858         /* For UDP model this is a invalid call */
 859         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 860             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 861                 /* Restore the flags that the soshutdown took away. */
 862                 SOCKBUF_LOCK(&so->so_rcv);
 863                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 864                 SOCKBUF_UNLOCK(&so->so_rcv);
 865                 /* This proc will wakeup for read and do nothing (I hope) */
 866                 SCTP_INP_RUNLOCK(inp);
 867                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 868                 return (EOPNOTSUPP);
 869         } else {
 870                 /*
 871                  * Ok, if we reach here its the TCP model and it is either a
 872                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 873                  * against it.
 874                  */
 875                 struct epoch_tracker et;
 876                 struct sctp_tcb *stcb;
 877                 struct sctp_association *asoc;
 878                 struct sctp_nets *netp;
 879
 880                 if ((so->so_state &
 881                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 882                         SCTP_INP_RUNLOCK(inp);
 883                         return (ENOTCONN);
 884                 }
 885                 socantsendmore(so);
 886
 887                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 888                 if (stcb == NULL) {
 889                         /*
 890                          * Ok, we hit the case that the shutdown call was
 891                          * made after an abort or something. Nothing to do
 892                          * now.
 893                          */
 894                         SCTP_INP_RUNLOCK(inp);
 895                         return (0);
 896                 }
 897                 SCTP_TCB_LOCK(stcb);
 898                 asoc = &stcb->asoc;
 899                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 900                         SCTP_TCB_UNLOCK(stcb);
 901                         SCTP_INP_RUNLOCK(inp);
 902                         return (0);
 903                 }
 904                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 905                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 906                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 907                         /*
 908                          * If we are not in or before ESTABLISHED, there is
 909                          * no protocol action required.
 910                          */
 911                         SCTP_TCB_UNLOCK(stcb);
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (0);
 914                 }
 915                 NET_EPOCH_ENTER(et);
 916                 if (stcb->asoc.alternate) {
 917                         netp = stcb->asoc.alternate;
 918                 } else {
 919                         netp = stcb->asoc.primary_destination;
 920                 }
 921                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 922                     TAILQ_EMPTY(&asoc->send_queue) &&
 923                     TAILQ_EMPTY(&asoc->sent_queue) &&
 924                     (asoc->stream_queue_cnt == 0)) {
 925                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 926                                 goto abort_anyway;
 927                         }
 928                         /* there is nothing queued to send, so I'm done... */
 929                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 930                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 931                         sctp_stop_timers_for_shutdown(stcb);
 932                         sctp_send_shutdown(stcb, netp);
 933                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 934                             stcb->sctp_ep, stcb, netp);
 935                 } else {
 936                         /*
 937                          * We still got (or just got) data to send, so set
 938                          * SHUTDOWN_PENDING.
 939                          */
 940                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 941                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 942                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 943                         }
 944                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 945                             TAILQ_EMPTY(&asoc->sent_queue) &&
 946                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 947                                 struct mbuf *op_err;
 948
 949                 abort_anyway:
 950                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 951                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 952                                 SCTP_INP_RUNLOCK(inp);
 953                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 954                                     op_err, false, SCTP_SO_LOCKED);
 955                                 NET_EPOCH_EXIT(et);
 956                                 return (0);
 957                         }
 958                 }
 959                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 960                 /*
 961                  * XXX: Why do this in the case where we have still data
 962                  * queued?
 963                  */
 964                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 965                 SCTP_TCB_UNLOCK(stcb);
 966                 SCTP_INP_RUNLOCK(inp);
 967                 NET_EPOCH_EXIT(et);
 968                 return (0);
 969         }
 970 }
 971
 972 /*
 973  * copies a "user" presentable address and removes embedded scope, etc.
 974  * returns 0 on success, 1 on error
 975  */
 976 static uint32_t
 977 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 978 {
 979 #ifdef INET6
 980         struct sockaddr_in6 lsa6;
 981
 982         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 983             &lsa6);
 984 #endif
 985         memcpy(dst, src, src->sa_len);
 986         return (0);
 987 }
 988
 989 static size_t
 990 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 991     struct sctp_tcb *stcb,
 992     size_t limit,
 993     struct sockaddr *addr,
 994     uint32_t vrf_id)
 995 {
 996         struct sctp_ifn *sctp_ifn;
 997         struct sctp_ifa *sctp_ifa;
 998         size_t actual;
 999         int loopback_scope;
1000 #if defined(INET)
1001         int ipv4_local_scope, ipv4_addr_legal;
1002 #endif
1003 #if defined(INET6)
1004         int local_scope, site_scope, ipv6_addr_legal;
1005 #endif
1006         struct sctp_vrf *vrf;
1007
1008         SCTP_IPI_ADDR_LOCK_ASSERT();
1009         actual = 0;
1010         if (limit == 0)
1011                 return (actual);
1012
1013         if (stcb) {
1014                 /* Turn on all the appropriate scope */
1015                 loopback_scope = stcb->asoc.scope.loopback_scope;
1016 #if defined(INET)
1017                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1018                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1019 #endif
1020 #if defined(INET6)
1021                 local_scope = stcb->asoc.scope.local_scope;
1022                 site_scope = stcb->asoc.scope.site_scope;
1023                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1024 #endif
1025         } else {
1026                 /* Use generic values for endpoints. */
1027                 loopback_scope = 1;
1028 #if defined(INET)
1029                 ipv4_local_scope = 1;
1030 #endif
1031 #if defined(INET6)
1032                 local_scope = 1;
1033                 site_scope = 1;
1034 #endif
1035                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1036 #if defined(INET6)
1037                         ipv6_addr_legal = 1;
1038 #endif
1039 #if defined(INET)
1040                         if (SCTP_IPV6_V6ONLY(inp)) {
1041                                 ipv4_addr_legal = 0;
1042                         } else {
1043                                 ipv4_addr_legal = 1;
1044                         }
1045 #endif
1046                 } else {
1047 #if defined(INET6)
1048                         ipv6_addr_legal = 0;
1049 #endif
1050 #if defined(INET)
1051                         ipv4_addr_legal = 1;
1052 #endif
1053                 }
1054         }
1055         vrf = sctp_find_vrf(vrf_id);
1056         if (vrf == NULL) {
1057                 return (0);
1058         }
1059         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1060                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1061                         if ((loopback_scope == 0) &&
1062                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1063                                 /* Skip loopback if loopback_scope not set */
1064                                 continue;
1065                         }
1066                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1067                                 if (stcb) {
1068                                         /*
1069                                          * For the BOUND-ALL case, the list
1070                                          * associated with a TCB is Always
1071                                          * considered a reverse list.. i.e.
1072                                          * it lists addresses that are NOT
1073                                          * part of the association. If this
1074                                          * is one of those we must skip it.
1075                                          */
1076                                         if (sctp_is_addr_restricted(stcb,
1077                                             sctp_ifa)) {
1078                                                 continue;
1079                                         }
1080                                 }
1081                                 switch (sctp_ifa->address.sa.sa_family) {
1082 #ifdef INET
1083                                 case AF_INET:
1084                                         if (ipv4_addr_legal) {
1085                                                 struct sockaddr_in *sin;
1086
1087                                                 sin = &sctp_ifa->address.sin;
1088                                                 if (sin->sin_addr.s_addr == 0) {
1089                                                         /*
1090                                                          * we skip
1091                                                          * unspecifed
1092                                                          * addresses
1093                                                          */
1094                                                         continue;
1095                                                 }
1096                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1097                                                     &sin->sin_addr) != 0) {
1098                                                         continue;
1099                                                 }
1100                                                 if ((ipv4_local_scope == 0) &&
1101                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1102                                                         continue;
1103                                                 }
1104 #ifdef INET6
1105                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1106                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1107                                                                 return (actual);
1108                                                         }
1109                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1110                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1111                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1112                                                         actual += sizeof(struct sockaddr_in6);
1113                                                 } else {
1114 #endif
1115                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1116                                                                 return (actual);
1117                                                         }
1118                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1119                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1120                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1121                                                         actual += sizeof(struct sockaddr_in);
1122 #ifdef INET6
1123                                                 }
1124 #endif
1125                                         } else {
1126                                                 continue;
1127                                         }
1128                                         break;
1129 #endif
1130 #ifdef INET6
1131                                 case AF_INET6:
1132                                         if (ipv6_addr_legal) {
1133                                                 struct sockaddr_in6 *sin6;
1134
1135                                                 sin6 = &sctp_ifa->address.sin6;
1136                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1137                                                         /*
1138                                                          * we skip
1139                                                          * unspecifed
1140                                                          * addresses
1141                                                          */
1142                                                         continue;
1143                                                 }
1144                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1145                                                     &sin6->sin6_addr) != 0) {
1146                                                         continue;
1147                                                 }
1148                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1149                                                         if (local_scope == 0)
1150                                                                 continue;
1151                                                         if (sin6->sin6_scope_id == 0) {
1152                                                                 if (sa6_recoverscope(sin6) != 0)
1153                                                                         /*
1154                                                                          *
1155                                                                          * bad
1156                                                                          * link
1157                                                                          *
1158                                                                          * local
1159                                                                          *
1160                                                                          * address
1161                                                                          */
1162                                                                         continue;
1163                                                         }
1164                                                 }
1165                                                 if ((site_scope == 0) &&
1166                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1167                                                         continue;
1168                                                 }
1169                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1170                                                         return (actual);
1171                                                 }
1172                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1173                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1174                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1175                                                 actual += sizeof(struct sockaddr_in6);
1176                                         } else {
1177                                                 continue;
1178                                         }
1179                                         break;
1180 #endif
1181                                 default:
1182                                         /* TSNH */
1183                                         break;
1184                                 }
1185                         }
1186                 }
1187         } else {
1188                 struct sctp_laddr *laddr;
1189                 size_t sa_len;
1190
1191                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1192                         if (stcb) {
1193                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1194                                         continue;
1195                                 }
1196                         }
1197                         sa_len = laddr->ifa->address.sa.sa_len;
1198                         if (actual + sa_len > limit) {
1199                                 return (actual);
1200                         }
1201                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1202                                 continue;
1203                         switch (laddr->ifa->address.sa.sa_family) {
1204 #ifdef INET
1205                         case AF_INET:
1206                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1207                                 break;
1208 #endif
1209 #ifdef INET6
1210                         case AF_INET6:
1211                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1212                                 break;
1213 #endif
1214                         default:
1215                                 /* TSNH */
1216                                 break;
1217                         }
1218                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1219                         actual += sa_len;
1220                 }
1221         }
1222         return (actual);
1223 }
1224
1225 static size_t
1226 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1227     struct sctp_tcb *stcb,
1228     size_t limit,
1229     struct sockaddr *addr)
1230 {
1231         size_t size;
1232
1233         SCTP_IPI_ADDR_RLOCK();
1234         /* fill up addresses for the endpoint's default vrf */
1235         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1236             inp->def_vrf_id);
1237         SCTP_IPI_ADDR_RUNLOCK();
1238         return (size);
1239 }
1240
1241 static size_t
1242 sctp_max_size_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1243 {
1244         struct sctp_vrf *vrf;
1245         size_t size;
1246
1247         /*
1248          * In both sub-set bound an bound_all cases we return the size of
1249          * the maximum number of addresses that you could get. In reality
1250          * the sub-set bound may have an exclusion list for a given TCB or
1251          * in the bound-all case a TCB may NOT include the loopback or other
1252          * addresses as well.
1253          */
1254         SCTP_IPI_ADDR_LOCK_ASSERT();
1255         vrf = sctp_find_vrf(vrf_id);
1256         if (vrf == NULL) {
1257                 return (0);
1258         }
1259         size = 0;
1260         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1261                 struct sctp_ifn *sctp_ifn;
1262                 struct sctp_ifa *sctp_ifa;
1263
1264                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1265                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1266                                 /* Count them if they are the right type */
1267                                 switch (sctp_ifa->address.sa.sa_family) {
1268 #ifdef INET
1269                                 case AF_INET:
1270 #ifdef INET6
1271                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1272                                                 size += sizeof(struct sockaddr_in6);
1273                                         else
1274                                                 size += sizeof(struct sockaddr_in);
1275 #else
1276                                         size += sizeof(struct sockaddr_in);
1277 #endif
1278                                         break;
1279 #endif
1280 #ifdef INET6
1281                                 case AF_INET6:
1282                                         size += sizeof(struct sockaddr_in6);
1283                                         break;
1284 #endif
1285                                 default:
1286                                         break;
1287                                 }
1288                         }
1289                 }
1290         } else {
1291                 struct sctp_laddr *laddr;
1292
1293                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1294                         switch (laddr->ifa->address.sa.sa_family) {
1295 #ifdef INET
1296                         case AF_INET:
1297 #ifdef INET6
1298                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1299                                         size += sizeof(struct sockaddr_in6);
1300                                 else
1301                                         size += sizeof(struct sockaddr_in);
1302 #else
1303                                 size += sizeof(struct sockaddr_in);
1304 #endif
1305                                 break;
1306 #endif
1307 #ifdef INET6
1308                         case AF_INET6:
1309                                 size += sizeof(struct sockaddr_in6);
1310                                 break;
1311 #endif
1312                         default:
1313                                 break;
1314                         }
1315                 }
1316         }
1317         return (size);
1318 }
1319
1320 static size_t
1321 sctp_max_size_addresses(struct sctp_inpcb *inp)
1322 {
1323         size_t size;
1324
1325         SCTP_IPI_ADDR_RLOCK();
1326         /* Maximum size of all addresses for the endpoint's default VRF */
1327         size = sctp_max_size_addresses_vrf(inp, inp->def_vrf_id);
1328         SCTP_IPI_ADDR_RUNLOCK();
1329         return (size);
1330 }
1331
1332 static int
1333 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1334     size_t optsize, void *p, int delay)
1335 {
1336         int error;
1337         int creat_lock_on = 0;
1338         struct sctp_tcb *stcb = NULL;
1339         struct sockaddr *sa;
1340         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1341         uint32_t vrf_id;
1342         sctp_assoc_t *a_id;
1343
1344         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1345
1346         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1347             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1348                 /* We are already connected AND the TCP model */
1349                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1350                 return (EADDRINUSE);
1351         }
1352
1353         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1354             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1355                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1356                 return (EINVAL);
1357         }
1358
1359         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1360                 SCTP_INP_RLOCK(inp);
1361                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1362                 SCTP_INP_RUNLOCK(inp);
1363         }
1364         if (stcb) {
1365                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1366                 return (EALREADY);
1367         }
1368         SCTP_INP_INCR_REF(inp);
1369         SCTP_ASOC_CREATE_LOCK(inp);
1370         creat_lock_on = 1;
1371         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1372             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1373                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1374                 error = EFAULT;
1375                 goto out_now;
1376         }
1377         totaddrp = (unsigned int *)optval;
1378         totaddr = *totaddrp;
1379         sa = (struct sockaddr *)(totaddrp + 1);
1380         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1381         if (error != 0) {
1382                 /* Already have or am bring up an association */
1383                 SCTP_ASOC_CREATE_UNLOCK(inp);
1384                 creat_lock_on = 0;
1385                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1386                 goto out_now;
1387         }
1388 #ifdef INET6
1389         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1390             (num_v6 > 0)) {
1391                 error = EINVAL;
1392                 goto out_now;
1393         }
1394         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1395             (num_v4 > 0)) {
1396                 if (SCTP_IPV6_V6ONLY(inp)) {
1397                         /*
1398                          * if IPV6_V6ONLY flag, ignore connections destined
1399                          * to a v4 addr or v4-mapped addr
1400                          */
1401                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1402                         error = EINVAL;
1403                         goto out_now;
1404                 }
1405         }
1406 #endif                          /* INET6 */
1407         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1408             SCTP_PCB_FLAGS_UNBOUND) {
1409                 /* Bind a ephemeral port */
1410                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1411                 if (error) {
1412                         goto out_now;
1413                 }
1414         }
1415
1416         /* FIX ME: do we want to pass in a vrf on the connect call? */
1417         vrf_id = inp->def_vrf_id;
1418
1419         /* We are GOOD to go */
1420         stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
1421             inp->sctp_ep.pre_open_stream_count,
1422             inp->sctp_ep.port,
1423             (struct thread *)p,
1424             SCTP_INITIALIZE_AUTH_PARAMS);
1425         if (stcb == NULL) {
1426                 /* Gak! no memory */
1427                 goto out_now;
1428         }
1429         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1430         /* move to second address */
1431         switch (sa->sa_family) {
1432 #ifdef INET
1433         case AF_INET:
1434                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1435                 break;
1436 #endif
1437 #ifdef INET6
1438         case AF_INET6:
1439                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1440                 break;
1441 #endif
1442         default:
1443                 break;
1444         }
1445
1446         error = 0;
1447         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1448         /* Fill in the return id */
1449         if (error) {
1450                 goto out_now;
1451         }
1452         a_id = (sctp_assoc_t *)optval;
1453         *a_id = sctp_get_associd(stcb);
1454
1455         if (delay) {
1456                 /* doing delayed connection */
1457                 stcb->asoc.delayed_connection = 1;
1458                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1459         } else {
1460                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1461                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1462         }
1463         SCTP_TCB_UNLOCK(stcb);
1464 out_now:
1465         if (creat_lock_on) {
1466                 SCTP_ASOC_CREATE_UNLOCK(inp);
1467         }
1468         SCTP_INP_DECR_REF(inp);
1469         return (error);
1470 }
1471
1472 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1473         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1474             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1475                 SCTP_INP_RLOCK(inp); \
1476                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1477                 if (stcb) { \
1478                         SCTP_TCB_LOCK(stcb); \
1479                 } \
1480                 SCTP_INP_RUNLOCK(inp); \
1481         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1482                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1483                 if (stcb == NULL) { \
1484                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1485                         error = ENOENT; \
1486                         break; \
1487                 } \
1488         } else { \
1489                 stcb = NULL; \
1490         } \
1491 }
1492
1493 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1494         if (size < sizeof(type)) { \
1495                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1496                 error = EINVAL; \
1497                 break; \
1498         } else { \
1499                 destp = (type *)srcp; \
1500         } \
1501 }
1502
1503 static int
1504 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1505     void *p)
1506 {
1507         struct sctp_inpcb *inp = NULL;
1508         int error, val = 0;
1509         struct sctp_tcb *stcb = NULL;
1510
1511         if (optval == NULL) {
1512                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1513                 return (EINVAL);
1514         }
1515
1516         inp = (struct sctp_inpcb *)so->so_pcb;
1517         if (inp == NULL) {
1518                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1519                 return EINVAL;
1520         }
1521         error = 0;
1522
1523         switch (optname) {
1524         case SCTP_NODELAY:
1525         case SCTP_AUTOCLOSE:
1526         case SCTP_EXPLICIT_EOR:
1527         case SCTP_AUTO_ASCONF:
1528         case SCTP_DISABLE_FRAGMENTS:
1529         case SCTP_I_WANT_MAPPED_V4_ADDR:
1530         case SCTP_USE_EXT_RCVINFO:
1531                 SCTP_INP_RLOCK(inp);
1532                 switch (optname) {
1533                 case SCTP_DISABLE_FRAGMENTS:
1534                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1535                         break;
1536                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1537                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1538                         break;
1539                 case SCTP_AUTO_ASCONF:
1540                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1541                                 /* only valid for bound all sockets */
1542                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1543                         } else {
1544                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1545                                 error = EINVAL;
1546                                 goto flags_out;
1547                         }
1548                         break;
1549                 case SCTP_EXPLICIT_EOR:
1550                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1551                         break;
1552                 case SCTP_NODELAY:
1553                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1554                         break;
1555                 case SCTP_USE_EXT_RCVINFO:
1556                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1557                         break;
1558                 case SCTP_AUTOCLOSE:
1559                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1560                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1561                         else
1562                                 val = 0;
1563                         break;
1564
1565                 default:
1566                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1567                         error = ENOPROTOOPT;
1568                 }               /* end switch (sopt->sopt_name) */
1569                 if (*optsize < sizeof(val)) {
1570                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1571                         error = EINVAL;
1572                 }
1573 flags_out:
1574                 SCTP_INP_RUNLOCK(inp);
1575                 if (error == 0) {
1576                         /* return the option value */
1577                         *(int *)optval = val;
1578                         *optsize = sizeof(val);
1579                 }
1580                 break;
1581         case SCTP_GET_PACKET_LOG:
1582                 {
1583 #ifdef  SCTP_PACKET_LOGGING
1584                         uint8_t *target;
1585                         int ret;
1586
1587                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1588                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1589                         *optsize = ret;
1590 #else
1591                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1592                         error = EOPNOTSUPP;
1593 #endif
1594                         break;
1595                 }
1596         case SCTP_REUSE_PORT:
1597                 {
1598                         uint32_t *value;
1599
1600                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1601                                 /* Can't do this for a 1-m socket */
1602                                 error = EINVAL;
1603                                 break;
1604                         }
1605                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1606                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1607                         *optsize = sizeof(uint32_t);
1608                         break;
1609                 }
1610         case SCTP_PARTIAL_DELIVERY_POINT:
1611                 {
1612                         uint32_t *value;
1613
1614                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1615                         *value = inp->partial_delivery_point;
1616                         *optsize = sizeof(uint32_t);
1617                         break;
1618                 }
1619         case SCTP_FRAGMENT_INTERLEAVE:
1620                 {
1621                         uint32_t *value;
1622
1623                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1624                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1625                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1626                                         *value = SCTP_FRAG_LEVEL_2;
1627                                 } else {
1628                                         *value = SCTP_FRAG_LEVEL_1;
1629                                 }
1630                         } else {
1631                                 *value = SCTP_FRAG_LEVEL_0;
1632                         }
1633                         *optsize = sizeof(uint32_t);
1634                         break;
1635                 }
1636         case SCTP_INTERLEAVING_SUPPORTED:
1637                 {
1638                         struct sctp_assoc_value *av;
1639
1640                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1641                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1642
1643                         if (stcb) {
1644                                 av->assoc_value = stcb->asoc.idata_supported;
1645                                 SCTP_TCB_UNLOCK(stcb);
1646                         } else {
1647                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1648                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1649                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1650                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1651                                         SCTP_INP_RLOCK(inp);
1652                                         if (inp->idata_supported) {
1653                                                 av->assoc_value = 1;
1654                                         } else {
1655                                                 av->assoc_value = 0;
1656                                         }
1657                                         SCTP_INP_RUNLOCK(inp);
1658                                 } else {
1659                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1660                                         error = EINVAL;
1661                                 }
1662                         }
1663                         if (error == 0) {
1664                                 *optsize = sizeof(struct sctp_assoc_value);
1665                         }
1666                         break;
1667                 }
1668         case SCTP_CMT_ON_OFF:
1669                 {
1670                         struct sctp_assoc_value *av;
1671
1672                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1673                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1674                         if (stcb) {
1675                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1676                                 SCTP_TCB_UNLOCK(stcb);
1677                         } else {
1678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1680                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1681                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1682                                         SCTP_INP_RLOCK(inp);
1683                                         av->assoc_value = inp->sctp_cmt_on_off;
1684                                         SCTP_INP_RUNLOCK(inp);
1685                                 } else {
1686                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1687                                         error = EINVAL;
1688                                 }
1689                         }
1690                         if (error == 0) {
1691                                 *optsize = sizeof(struct sctp_assoc_value);
1692                         }
1693                         break;
1694                 }
1695         case SCTP_PLUGGABLE_CC:
1696                 {
1697                         struct sctp_assoc_value *av;
1698
1699                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1700                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1701                         if (stcb) {
1702                                 av->assoc_value = stcb->asoc.congestion_control_module;
1703                                 SCTP_TCB_UNLOCK(stcb);
1704                         } else {
1705                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1706                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1707                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1708                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1709                                         SCTP_INP_RLOCK(inp);
1710                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1711                                         SCTP_INP_RUNLOCK(inp);
1712                                 } else {
1713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1714                                         error = EINVAL;
1715                                 }
1716                         }
1717                         if (error == 0) {
1718                                 *optsize = sizeof(struct sctp_assoc_value);
1719                         }
1720                         break;
1721                 }
1722         case SCTP_CC_OPTION:
1723                 {
1724                         struct sctp_cc_option *cc_opt;
1725
1726                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1727                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1728                         if (stcb == NULL) {
1729                                 error = EINVAL;
1730                         } else {
1731                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1732                                         error = ENOTSUP;
1733                                 } else {
1734                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1735                                         *optsize = sizeof(struct sctp_cc_option);
1736                                 }
1737                                 SCTP_TCB_UNLOCK(stcb);
1738                         }
1739                         break;
1740                 }
1741         case SCTP_PLUGGABLE_SS:
1742                 {
1743                         struct sctp_assoc_value *av;
1744
1745                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1746                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1747                         if (stcb) {
1748                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1749                                 SCTP_TCB_UNLOCK(stcb);
1750                         } else {
1751                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1752                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1753                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1754                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1755                                         SCTP_INP_RLOCK(inp);
1756                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1757                                         SCTP_INP_RUNLOCK(inp);
1758                                 } else {
1759                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1760                                         error = EINVAL;
1761                                 }
1762                         }
1763                         if (error == 0) {
1764                                 *optsize = sizeof(struct sctp_assoc_value);
1765                         }
1766                         break;
1767                 }
1768         case SCTP_SS_VALUE:
1769                 {
1770                         struct sctp_stream_value *av;
1771
1772                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1773                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1774                         if (stcb) {
1775                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1776                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1777                                     &av->stream_value) < 0)) {
1778                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1779                                         error = EINVAL;
1780                                 } else {
1781                                         *optsize = sizeof(struct sctp_stream_value);
1782                                 }
1783                                 SCTP_TCB_UNLOCK(stcb);
1784                         } else {
1785                                 /*
1786                                  * Can't get stream value without
1787                                  * association
1788                                  */
1789                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1790                                 error = EINVAL;
1791                         }
1792                         break;
1793                 }
1794         case SCTP_GET_ADDR_LEN:
1795                 {
1796                         struct sctp_assoc_value *av;
1797
1798                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1799                         error = EINVAL;
1800 #ifdef INET
1801                         if (av->assoc_value == AF_INET) {
1802                                 av->assoc_value = sizeof(struct sockaddr_in);
1803                                 error = 0;
1804                         }
1805 #endif
1806 #ifdef INET6
1807                         if (av->assoc_value == AF_INET6) {
1808                                 av->assoc_value = sizeof(struct sockaddr_in6);
1809                                 error = 0;
1810                         }
1811 #endif
1812                         if (error) {
1813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1814                         } else {
1815                                 *optsize = sizeof(struct sctp_assoc_value);
1816                         }
1817                         break;
1818                 }
1819         case SCTP_GET_ASSOC_NUMBER:
1820                 {
1821                         uint32_t *value, cnt;
1822
1823                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1824                         SCTP_INP_RLOCK(inp);
1825                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1826                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1827                                 /* Can't do this for a 1-1 socket */
1828                                 error = EINVAL;
1829                                 SCTP_INP_RUNLOCK(inp);
1830                                 break;
1831                         }
1832                         cnt = 0;
1833                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1834                                 cnt++;
1835                         }
1836                         SCTP_INP_RUNLOCK(inp);
1837                         *value = cnt;
1838                         *optsize = sizeof(uint32_t);
1839                         break;
1840                 }
1841         case SCTP_GET_ASSOC_ID_LIST:
1842                 {
1843                         struct sctp_assoc_ids *ids;
1844                         uint32_t at;
1845                         size_t limit;
1846
1847                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1848                         SCTP_INP_RLOCK(inp);
1849                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1850                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1851                                 /* Can't do this for a 1-1 socket */
1852                                 error = EINVAL;
1853                                 SCTP_INP_RUNLOCK(inp);
1854                                 break;
1855                         }
1856                         at = 0;
1857                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1858                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1859                                 if (at < limit) {
1860                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1861                                         if (at == 0) {
1862                                                 error = EINVAL;
1863                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1864                                                 break;
1865                                         }
1866                                 } else {
1867                                         error = EINVAL;
1868                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1869                                         break;
1870                                 }
1871                         }
1872                         SCTP_INP_RUNLOCK(inp);
1873                         if (error == 0) {
1874                                 ids->gaids_number_of_ids = at;
1875                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1876                         }
1877                         break;
1878                 }
1879         case SCTP_CONTEXT:
1880                 {
1881                         struct sctp_assoc_value *av;
1882
1883                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1884                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1885
1886                         if (stcb) {
1887                                 av->assoc_value = stcb->asoc.context;
1888                                 SCTP_TCB_UNLOCK(stcb);
1889                         } else {
1890                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1891                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1892                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1893                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1894                                         SCTP_INP_RLOCK(inp);
1895                                         av->assoc_value = inp->sctp_context;
1896                                         SCTP_INP_RUNLOCK(inp);
1897                                 } else {
1898                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1899                                         error = EINVAL;
1900                                 }
1901                         }
1902                         if (error == 0) {
1903                                 *optsize = sizeof(struct sctp_assoc_value);
1904                         }
1905                         break;
1906                 }
1907         case SCTP_VRF_ID:
1908                 {
1909                         uint32_t *default_vrfid;
1910
1911                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1912                         *default_vrfid = inp->def_vrf_id;
1913                         *optsize = sizeof(uint32_t);
1914                         break;
1915                 }
1916         case SCTP_GET_ASOC_VRF:
1917                 {
1918                         struct sctp_assoc_value *id;
1919
1920                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1921                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1922                         if (stcb == NULL) {
1923                                 error = EINVAL;
1924                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1925                         } else {
1926                                 id->assoc_value = stcb->asoc.vrf_id;
1927                                 SCTP_TCB_UNLOCK(stcb);
1928                                 *optsize = sizeof(struct sctp_assoc_value);
1929                         }
1930                         break;
1931                 }
1932         case SCTP_GET_VRF_IDS:
1933                 {
1934                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1935                         error = EOPNOTSUPP;
1936                         break;
1937                 }
1938         case SCTP_GET_NONCE_VALUES:
1939                 {
1940                         struct sctp_get_nonce_values *gnv;
1941
1942                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1943                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1944
1945                         if (stcb) {
1946                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1947                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1948                                 SCTP_TCB_UNLOCK(stcb);
1949                                 *optsize = sizeof(struct sctp_get_nonce_values);
1950                         } else {
1951                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1952                                 error = ENOTCONN;
1953                         }
1954                         break;
1955                 }
1956         case SCTP_DELAYED_SACK:
1957                 {
1958                         struct sctp_sack_info *sack;
1959
1960                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1961                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1962                         if (stcb) {
1963                                 sack->sack_delay = stcb->asoc.delayed_ack;
1964                                 sack->sack_freq = stcb->asoc.sack_freq;
1965                                 SCTP_TCB_UNLOCK(stcb);
1966                         } else {
1967                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1968                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1969                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1970                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1971                                         SCTP_INP_RLOCK(inp);
1972                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1973                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1974                                         SCTP_INP_RUNLOCK(inp);
1975                                 } else {
1976                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1977                                         error = EINVAL;
1978                                 }
1979                         }
1980                         if (error == 0) {
1981                                 *optsize = sizeof(struct sctp_sack_info);
1982                         }
1983                         break;
1984                 }
1985         case SCTP_GET_SNDBUF_USE:
1986                 {
1987                         struct sctp_sockstat *ss;
1988
1989                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1990                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1991
1992                         if (stcb) {
1993                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1994                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1995                                     stcb->asoc.size_on_all_streams);
1996                                 SCTP_TCB_UNLOCK(stcb);
1997                                 *optsize = sizeof(struct sctp_sockstat);
1998                         } else {
1999                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2000                                 error = ENOTCONN;
2001                         }
2002                         break;
2003                 }
2004         case SCTP_MAX_BURST:
2005                 {
2006                         struct sctp_assoc_value *av;
2007
2008                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2009                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2010
2011                         if (stcb) {
2012                                 av->assoc_value = stcb->asoc.max_burst;
2013                                 SCTP_TCB_UNLOCK(stcb);
2014                         } else {
2015                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2016                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2017                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2018                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2019                                         SCTP_INP_RLOCK(inp);
2020                                         av->assoc_value = inp->sctp_ep.max_burst;
2021                                         SCTP_INP_RUNLOCK(inp);
2022                                 } else {
2023                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2024                                         error = EINVAL;
2025                                 }
2026                         }
2027                         if (error == 0) {
2028                                 *optsize = sizeof(struct sctp_assoc_value);
2029                         }
2030                         break;
2031                 }
2032         case SCTP_MAXSEG:
2033                 {
2034                         struct sctp_assoc_value *av;
2035
2036                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2037                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2038
2039                         if (stcb) {
2040                                 av->assoc_value = stcb->asoc.sctp_frag_point;
2041                                 SCTP_TCB_UNLOCK(stcb);
2042                         } else {
2043                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2044                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2045                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2046                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2047                                         SCTP_INP_RLOCK(inp);
2048                                         av->assoc_value = inp->sctp_frag_point;
2049                                         SCTP_INP_RUNLOCK(inp);
2050                                 } else {
2051                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2052                                         error = EINVAL;
2053                                 }
2054                         }
2055                         if (error == 0) {
2056                                 *optsize = sizeof(struct sctp_assoc_value);
2057                         }
2058                         break;
2059                 }
2060         case SCTP_GET_STAT_LOG:
2061                 error = sctp_fill_stat_log(optval, optsize);
2062                 break;
2063         case SCTP_EVENTS:
2064                 {
2065                         struct sctp_event_subscribe *events;
2066
2067                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2068                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2069                         SCTP_INP_RLOCK(inp);
2070                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2071                                 events->sctp_data_io_event = 1;
2072
2073                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2074                                 events->sctp_association_event = 1;
2075
2076                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2077                                 events->sctp_address_event = 1;
2078
2079                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2080                                 events->sctp_send_failure_event = 1;
2081
2082                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2083                                 events->sctp_peer_error_event = 1;
2084
2085                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2086                                 events->sctp_shutdown_event = 1;
2087
2088                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2089                                 events->sctp_partial_delivery_event = 1;
2090
2091                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2092                                 events->sctp_adaptation_layer_event = 1;
2093
2094                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2095                                 events->sctp_authentication_event = 1;
2096
2097                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2098                                 events->sctp_sender_dry_event = 1;
2099
2100                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2101                                 events->sctp_stream_reset_event = 1;
2102                         SCTP_INP_RUNLOCK(inp);
2103                         *optsize = sizeof(struct sctp_event_subscribe);
2104                         break;
2105                 }
2106         case SCTP_ADAPTATION_LAYER:
2107                 {
2108                         uint32_t *value;
2109
2110                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2111
2112                         SCTP_INP_RLOCK(inp);
2113                         *value = inp->sctp_ep.adaptation_layer_indicator;
2114                         SCTP_INP_RUNLOCK(inp);
2115                         *optsize = sizeof(uint32_t);
2116                         break;
2117                 }
2118         case SCTP_SET_INITIAL_DBG_SEQ:
2119                 {
2120                         uint32_t *value;
2121
2122                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2123                         SCTP_INP_RLOCK(inp);
2124                         *value = inp->sctp_ep.initial_sequence_debug;
2125                         SCTP_INP_RUNLOCK(inp);
2126                         *optsize = sizeof(uint32_t);
2127                         break;
2128                 }
2129         case SCTP_GET_LOCAL_ADDR_SIZE:
2130                 {
2131                         uint32_t *value;
2132
2133                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2134                         SCTP_INP_RLOCK(inp);
2135                         *value = (uint32_t)sctp_max_size_addresses(inp);
2136                         SCTP_INP_RUNLOCK(inp);
2137                         *optsize = sizeof(uint32_t);
2138                         break;
2139                 }
2140         case SCTP_GET_REMOTE_ADDR_SIZE:
2141                 {
2142                         uint32_t *value;
2143                         struct sctp_nets *net;
2144                         size_t size;
2145
2146                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2147                         /* FIXME MT: change to sctp_assoc_value? */
2148                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2149
2150                         if (stcb != NULL) {
2151                                 size = 0;
2152                                 /* Count the sizes */
2153                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2154                                         switch (net->ro._l_addr.sa.sa_family) {
2155 #ifdef INET
2156                                         case AF_INET:
2157 #ifdef INET6
2158                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2159                                                         size += sizeof(struct sockaddr_in6);
2160                                                 } else {
2161                                                         size += sizeof(struct sockaddr_in);
2162                                                 }
2163 #else
2164                                                 size += sizeof(struct sockaddr_in);
2165 #endif
2166                                                 break;
2167 #endif
2168 #ifdef INET6
2169                                         case AF_INET6:
2170                                                 size += sizeof(struct sockaddr_in6);
2171                                                 break;
2172 #endif
2173                                         default:
2174                                                 break;
2175                                         }
2176                                 }
2177                                 SCTP_TCB_UNLOCK(stcb);
2178                                 *value = (uint32_t)size;
2179                                 *optsize = sizeof(uint32_t);
2180                         } else {
2181                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2182                                     ((sctp_assoc_t)*value <= SCTP_ALL_ASSOC)) {
2183                                         error = EINVAL;
2184                                 } else {
2185                                         error = ENOENT;
2186                                 }
2187                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2188                         }
2189                         break;
2190                 }
2191         case SCTP_GET_PEER_ADDRESSES:
2192                 /*
2193                  * Get the address information, an array is passed in to
2194                  * fill up we pack it.
2195                  */
2196                 {
2197                         size_t cpsz, left;
2198                         struct sockaddr *addr;
2199                         struct sctp_nets *net;
2200                         struct sctp_getaddresses *saddr;
2201
2202                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2203                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2204
2205                         if (stcb != NULL) {
2206                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2207                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2208                                 addr = &saddr->addr[0].sa;
2209
2210                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2211                                         switch (net->ro._l_addr.sa.sa_family) {
2212 #ifdef INET
2213                                         case AF_INET:
2214 #ifdef INET6
2215                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2216                                                         cpsz = sizeof(struct sockaddr_in6);
2217                                                 } else {
2218                                                         cpsz = sizeof(struct sockaddr_in);
2219                                                 }
2220 #else
2221                                                 cpsz = sizeof(struct sockaddr_in);
2222 #endif
2223                                                 break;
2224 #endif
2225 #ifdef INET6
2226                                         case AF_INET6:
2227                                                 cpsz = sizeof(struct sockaddr_in6);
2228                                                 break;
2229 #endif
2230                                         default:
2231                                                 cpsz = 0;
2232                                                 break;
2233                                         }
2234                                         if (cpsz == 0) {
2235                                                 break;
2236                                         }
2237                                         if (left < cpsz) {
2238                                                 /* not enough room. */
2239                                                 break;
2240                                         }
2241 #if defined(INET) && defined(INET6)
2242                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2243                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2244                                                 /* Must map the address */
2245                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2246                                                     (struct sockaddr_in6 *)addr);
2247                                         } else {
2248                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2249                                         }
2250 #else
2251                                         memcpy(addr, &net->ro._l_addr, cpsz);
2252 #endif
2253                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2254
2255                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2256                                         left -= cpsz;
2257                                         *optsize += cpsz;
2258                                 }
2259                                 SCTP_TCB_UNLOCK(stcb);
2260                         } else {
2261                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2262                                     (saddr->sget_assoc_id <= SCTP_ALL_ASSOC)) {
2263                                         error = EINVAL;
2264                                 } else {
2265                                         error = ENOENT;
2266                                 }
2267                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2268                         }
2269                         break;
2270                 }
2271         case SCTP_GET_LOCAL_ADDRESSES:
2272                 {
2273                         size_t limit, actual;
2274                         struct sctp_getaddresses *saddr;
2275
2276                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2277                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2278
2279                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2280                             ((saddr->sget_assoc_id == SCTP_CURRENT_ASSOC) ||
2281                             (saddr->sget_assoc_id == SCTP_ALL_ASSOC))) {
2282                                 error = EINVAL;
2283                         } else {
2284                                 limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2285                                 actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2286                                 *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2287                         }
2288                         if (stcb != NULL) {
2289                                 SCTP_TCB_UNLOCK(stcb);
2290                         }
2291                         break;
2292                 }
2293         case SCTP_PEER_ADDR_PARAMS:
2294                 {
2295                         struct sctp_paddrparams *paddrp;
2296                         struct sctp_nets *net;
2297                         struct sockaddr *addr;
2298 #if defined(INET) && defined(INET6)
2299                         struct sockaddr_in sin_store;
2300 #endif
2301
2302                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2303                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2304
2305 #if defined(INET) && defined(INET6)
2306                         if (paddrp->spp_address.ss_family == AF_INET6) {
2307                                 struct sockaddr_in6 *sin6;
2308
2309                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2310                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2311                                         in6_sin6_2_sin(&sin_store, sin6);
2312                                         addr = (struct sockaddr *)&sin_store;
2313                                 } else {
2314                                         addr = (struct sockaddr *)&paddrp->spp_address;
2315                                 }
2316                         } else {
2317                                 addr = (struct sockaddr *)&paddrp->spp_address;
2318                         }
2319 #else
2320                         addr = (struct sockaddr *)&paddrp->spp_address;
2321 #endif
2322                         if (stcb != NULL) {
2323                                 net = sctp_findnet(stcb, addr);
2324                         } else {
2325                                 /*
2326                                  * We increment here since
2327                                  * sctp_findassociation_ep_addr() wil do a
2328                                  * decrement if it finds the stcb as long as
2329                                  * the locked tcb (last argument) is NOT a
2330                                  * TCB.. aka NULL.
2331                                  */
2332                                 net = NULL;
2333                                 SCTP_INP_INCR_REF(inp);
2334                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2335                                 if (stcb == NULL) {
2336                                         SCTP_INP_DECR_REF(inp);
2337                                 }
2338                         }
2339                         if ((stcb != NULL) && (net == NULL)) {
2340 #ifdef INET
2341                                 if (addr->sa_family == AF_INET) {
2342                                         struct sockaddr_in *sin;
2343
2344                                         sin = (struct sockaddr_in *)addr;
2345                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2346                                                 error = EINVAL;
2347                                                 SCTP_TCB_UNLOCK(stcb);
2348                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2349                                                 break;
2350                                         }
2351                                 } else
2352 #endif
2353 #ifdef INET6
2354                                 if (addr->sa_family == AF_INET6) {
2355                                         struct sockaddr_in6 *sin6;
2356
2357                                         sin6 = (struct sockaddr_in6 *)addr;
2358                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2359                                                 error = EINVAL;
2360                                                 SCTP_TCB_UNLOCK(stcb);
2361                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2362                                                 break;
2363                                         }
2364                                 } else
2365 #endif
2366                                 {
2367                                         error = EAFNOSUPPORT;
2368                                         SCTP_TCB_UNLOCK(stcb);
2369                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2370                                         break;
2371                                 }
2372                         }
2373
2374                         if (stcb != NULL) {
2375                                 /* Applies to the specific association */
2376                                 paddrp->spp_flags = 0;
2377                                 if (net != NULL) {
2378                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2379                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2380                                         paddrp->spp_pathmtu = net->mtu;
2381                                         switch (net->ro._l_addr.sa.sa_family) {
2382 #ifdef INET
2383                                         case AF_INET:
2384                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2385                                                 break;
2386 #endif
2387 #ifdef INET6
2388                                         case AF_INET6:
2389                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2390                                                 break;
2391 #endif
2392                                         default:
2393                                                 break;
2394                                         }
2395                                         /* get flags for HB */
2396                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2397                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2398                                         } else {
2399                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2400                                         }
2401                                         /* get flags for PMTU */
2402                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2403                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2404                                         } else {
2405                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2406                                         }
2407                                         if (net->dscp & 0x01) {
2408                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2409                                                 paddrp->spp_flags |= SPP_DSCP;
2410                                         }
2411 #ifdef INET6
2412                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2413                                             (net->flowlabel & 0x80000000)) {
2414                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2415                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2416                                         }
2417 #endif
2418                                 } else {
2419                                         /*
2420                                          * No destination so return default
2421                                          * value
2422                                          */
2423                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2424                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2425                                         if (stcb->asoc.default_dscp & 0x01) {
2426                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2427                                                 paddrp->spp_flags |= SPP_DSCP;
2428                                         }
2429 #ifdef INET6
2430                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2431                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2432                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2433                                         }
2434 #endif
2435                                         /* default settings should be these */
2436                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2437                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2438                                         } else {
2439                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2440                                         }
2441                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2442                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2443                                         } else {
2444                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2445                                         }
2446                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2447                                 }
2448                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2449                                 SCTP_TCB_UNLOCK(stcb);
2450                         } else {
2451                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2452                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2453                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2454                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2455                                         /* Use endpoint defaults */
2456                                         SCTP_INP_RLOCK(inp);
2457                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2458                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2459                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2460                                         /* get inp's default */
2461                                         if (inp->sctp_ep.default_dscp & 0x01) {
2462                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2463                                                 paddrp->spp_flags |= SPP_DSCP;
2464                                         }
2465 #ifdef INET6
2466                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2467                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2468                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2469                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2470                                         }
2471 #endif
2472                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2473
2474                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2475                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2476                                         } else {
2477                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2478                                         }
2479                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2480                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2481                                         } else {
2482                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2483                                         }
2484                                         SCTP_INP_RUNLOCK(inp);
2485                                 } else {
2486                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2487                                         error = EINVAL;
2488                                 }
2489                         }
2490                         if (error == 0) {
2491                                 *optsize = sizeof(struct sctp_paddrparams);
2492                         }
2493                         break;
2494                 }
2495         case SCTP_GET_PEER_ADDR_INFO:
2496                 {
2497                         struct sctp_paddrinfo *paddri;
2498                         struct sctp_nets *net;
2499                         struct sockaddr *addr;
2500 #if defined(INET) && defined(INET6)
2501                         struct sockaddr_in sin_store;
2502 #endif
2503
2504                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2505                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2506
2507 #if defined(INET) && defined(INET6)
2508                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2509                                 struct sockaddr_in6 *sin6;
2510
2511                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2512                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2513                                         in6_sin6_2_sin(&sin_store, sin6);
2514                                         addr = (struct sockaddr *)&sin_store;
2515                                 } else {
2516                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2517                                 }
2518                         } else {
2519                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2520                         }
2521 #else
2522                         addr = (struct sockaddr *)&paddri->spinfo_address;
2523 #endif
2524                         if (stcb != NULL) {
2525                                 net = sctp_findnet(stcb, addr);
2526                         } else {
2527                                 /*
2528                                  * We increment here since
2529                                  * sctp_findassociation_ep_addr() wil do a
2530                                  * decrement if it finds the stcb as long as
2531                                  * the locked tcb (last argument) is NOT a
2532                                  * TCB.. aka NULL.
2533                                  */
2534                                 net = NULL;
2535                                 SCTP_INP_INCR_REF(inp);
2536                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2537                                 if (stcb == NULL) {
2538                                         SCTP_INP_DECR_REF(inp);
2539                                 }
2540                         }
2541
2542                         if ((stcb != NULL) && (net != NULL)) {
2543                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2544                                         /* It's unconfirmed */
2545                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2546                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2547                                         /* It's active */
2548                                         paddri->spinfo_state = SCTP_ACTIVE;
2549                                 } else {
2550                                         /* It's inactive */
2551                                         paddri->spinfo_state = SCTP_INACTIVE;
2552                                 }
2553                                 paddri->spinfo_cwnd = net->cwnd;
2554                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2555                                 paddri->spinfo_rto = net->RTO;
2556                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2557                                 paddri->spinfo_mtu = net->mtu;
2558                                 switch (addr->sa_family) {
2559 #if defined(INET)
2560                                 case AF_INET:
2561                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2562                                         break;
2563 #endif
2564 #if defined(INET6)
2565                                 case AF_INET6:
2566                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2567                                         break;
2568 #endif
2569                                 default:
2570                                         break;
2571                                 }
2572                                 SCTP_TCB_UNLOCK(stcb);
2573                                 *optsize = sizeof(struct sctp_paddrinfo);
2574                         } else {
2575                                 if (stcb != NULL) {
2576                                         SCTP_TCB_UNLOCK(stcb);
2577                                 }
2578                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2579                                 error = ENOENT;
2580                         }
2581                         break;
2582                 }
2583         case SCTP_PCB_STATUS:
2584                 {
2585                         struct sctp_pcbinfo *spcb;
2586
2587                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2588                         sctp_fill_pcbinfo(spcb);
2589                         *optsize = sizeof(struct sctp_pcbinfo);
2590                         break;
2591                 }
2592         case SCTP_STATUS:
2593                 {
2594                         struct sctp_nets *net;
2595                         struct sctp_status *sstat;
2596
2597                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2598                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2599
2600                         if (stcb == NULL) {
2601                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2602                                 error = EINVAL;
2603                                 break;
2604                         }
2605                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2606                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2607                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2608                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2609                         /*
2610                          * We can't include chunks that have been passed to
2611                          * the socket layer. Only things in queue.
2612                          */
2613                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2614                             stcb->asoc.cnt_on_all_streams);
2615                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2616                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2617                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb);
2618                         net = stcb->asoc.primary_destination;
2619                         if (net != NULL) {
2620                                 memcpy(&sstat->sstat_primary.spinfo_address,
2621                                     &net->ro._l_addr,
2622                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2623                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2624                                 /*
2625                                  * Again the user can get info from
2626                                  * sctp_constants.h for what the state of
2627                                  * the network is.
2628                                  */
2629                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2630                                         /* It's unconfirmed */
2631                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2632                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2633                                         /* It's active */
2634                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2635                                 } else {
2636                                         /* It's inactive */
2637                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2638                                 }
2639                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2640                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2641                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2642                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2643                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2644 #if defined(INET)
2645                                 case AF_INET:
2646                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2647                                         break;
2648 #endif
2649 #if defined(INET6)
2650                                 case AF_INET6:
2651                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2652                                         break;
2653 #endif
2654                                 default:
2655                                         break;
2656                                 }
2657                         } else {
2658                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2659                         }
2660                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2661                         SCTP_TCB_UNLOCK(stcb);
2662                         *optsize = sizeof(struct sctp_status);
2663                         break;
2664                 }
2665         case SCTP_RTOINFO:
2666                 {
2667                         struct sctp_rtoinfo *srto;
2668
2669                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2670                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2671
2672                         if (stcb) {
2673                                 srto->srto_initial = stcb->asoc.initial_rto;
2674                                 srto->srto_max = stcb->asoc.maxrto;
2675                                 srto->srto_min = stcb->asoc.minrto;
2676                                 SCTP_TCB_UNLOCK(stcb);
2677                         } else {
2678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2680                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2681                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2682                                         SCTP_INP_RLOCK(inp);
2683                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2684                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2685                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2686                                         SCTP_INP_RUNLOCK(inp);
2687                                 } else {
2688                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2689                                         error = EINVAL;
2690                                 }
2691                         }
2692                         if (error == 0) {
2693                                 *optsize = sizeof(struct sctp_rtoinfo);
2694                         }
2695                         break;
2696                 }
2697         case SCTP_TIMEOUTS:
2698                 {
2699                         struct sctp_timeouts *stimo;
2700
2701                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2702                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2703
2704                         if (stcb) {
2705                                 stimo->stimo_init = stcb->asoc.timoinit;
2706                                 stimo->stimo_data = stcb->asoc.timodata;
2707                                 stimo->stimo_sack = stcb->asoc.timosack;
2708                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2709                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2710                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2711                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2712                                 SCTP_TCB_UNLOCK(stcb);
2713                                 *optsize = sizeof(struct sctp_timeouts);
2714                         } else {
2715                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2716                                 error = EINVAL;
2717                         }
2718                         break;
2719                 }
2720         case SCTP_ASSOCINFO:
2721                 {
2722                         struct sctp_assocparams *sasoc;
2723
2724                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2725                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2726
2727                         if (stcb) {
2728                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2729                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2730                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2731                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2732                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2733                                 SCTP_TCB_UNLOCK(stcb);
2734                         } else {
2735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2737                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2738                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2739                                         SCTP_INP_RLOCK(inp);
2740                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2741                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2742                                         sasoc->sasoc_number_peer_destinations = 0;
2743                                         sasoc->sasoc_peer_rwnd = 0;
2744                                         sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
2745                                         SCTP_INP_RUNLOCK(inp);
2746                                 } else {
2747                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2748                                         error = EINVAL;
2749                                 }
2750                         }
2751                         if (error == 0) {
2752                                 *optsize = sizeof(struct sctp_assocparams);
2753                         }
2754                         break;
2755                 }
2756         case SCTP_DEFAULT_SEND_PARAM:
2757                 {
2758                         struct sctp_sndrcvinfo *s_info;
2759
2760                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2761                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2762
2763                         if (stcb) {
2764                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2765                                 SCTP_TCB_UNLOCK(stcb);
2766                         } else {
2767                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2768                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2769                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2770                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2771                                         SCTP_INP_RLOCK(inp);
2772                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2773                                         SCTP_INP_RUNLOCK(inp);
2774                                 } else {
2775                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2776                                         error = EINVAL;
2777                                 }
2778                         }
2779                         if (error == 0) {
2780                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2781                         }
2782                         break;
2783                 }
2784         case SCTP_INITMSG:
2785                 {
2786                         struct sctp_initmsg *sinit;
2787
2788                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2789                         SCTP_INP_RLOCK(inp);
2790                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2791                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2792                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2793                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2794                         SCTP_INP_RUNLOCK(inp);
2795                         *optsize = sizeof(struct sctp_initmsg);
2796                         break;
2797                 }
2798         case SCTP_PRIMARY_ADDR:
2799                 /* we allow a "get" operation on this */
2800                 {
2801                         struct sctp_setprim *ssp;
2802
2803                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2804                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2805
2806                         if (stcb) {
2807                                 union sctp_sockstore *addr;
2808
2809                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2810                                 switch (addr->sa.sa_family) {
2811 #ifdef INET
2812                                 case AF_INET:
2813 #ifdef INET6
2814                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2815                                                 in6_sin_2_v4mapsin6(&addr->sin,
2816                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2817                                         } else {
2818                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2819                                         }
2820 #else
2821                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2822 #endif
2823                                         break;
2824 #endif
2825 #ifdef INET6
2826                                 case AF_INET6:
2827                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2828                                         break;
2829 #endif
2830                                 default:
2831                                         break;
2832                                 }
2833                                 SCTP_TCB_UNLOCK(stcb);
2834                                 *optsize = sizeof(struct sctp_setprim);
2835                         } else {
2836                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2837                                 error = EINVAL;
2838                         }
2839                         break;
2840                 }
2841         case SCTP_HMAC_IDENT:
2842                 {
2843                         struct sctp_hmacalgo *shmac;
2844                         sctp_hmaclist_t *hmaclist;
2845                         size_t size;
2846                         int i;
2847
2848                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2849
2850                         SCTP_INP_RLOCK(inp);
2851                         hmaclist = inp->sctp_ep.local_hmacs;
2852                         if (hmaclist == NULL) {
2853                                 /* no HMACs to return */
2854                                 *optsize = sizeof(*shmac);
2855                                 SCTP_INP_RUNLOCK(inp);
2856                                 break;
2857                         }
2858                         /* is there room for all of the hmac ids? */
2859                         size = sizeof(*shmac) + (hmaclist->num_algo *
2860                             sizeof(shmac->shmac_idents[0]));
2861                         if (*optsize < size) {
2862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2863                                 error = EINVAL;
2864                                 SCTP_INP_RUNLOCK(inp);
2865                                 break;
2866                         }
2867                         /* copy in the list */
2868                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2869                         for (i = 0; i < hmaclist->num_algo; i++) {
2870                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2871                         }
2872                         SCTP_INP_RUNLOCK(inp);
2873                         *optsize = size;
2874                         break;
2875                 }
2876         case SCTP_AUTH_ACTIVE_KEY:
2877                 {
2878                         struct sctp_authkeyid *scact;
2879
2880                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2881                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2882
2883                         if (stcb) {
2884                                 /* get the active key on the assoc */
2885                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2886                                 SCTP_TCB_UNLOCK(stcb);
2887                         } else {
2888                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2889                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2890                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2891                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2892                                         /* get the endpoint active key */
2893                                         SCTP_INP_RLOCK(inp);
2894                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2895                                         SCTP_INP_RUNLOCK(inp);
2896                                 } else {
2897                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2898                                         error = EINVAL;
2899                                 }
2900                         }
2901                         if (error == 0) {
2902                                 *optsize = sizeof(struct sctp_authkeyid);
2903                         }
2904                         break;
2905                 }
2906         case SCTP_LOCAL_AUTH_CHUNKS:
2907                 {
2908                         struct sctp_authchunks *sac;
2909                         sctp_auth_chklist_t *chklist = NULL;
2910                         size_t size = 0;
2911
2912                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2913                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2914
2915                         if (stcb) {
2916                                 /* get off the assoc */
2917                                 chklist = stcb->asoc.local_auth_chunks;
2918                                 /* is there enough space? */
2919                                 size = sctp_auth_get_chklist_size(chklist);
2920                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2921                                         error = EINVAL;
2922                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2923                                 } else {
2924                                         /* copy in the chunks */
2925                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2926                                         sac->gauth_number_of_chunks = (uint32_t)size;
2927                                         *optsize = sizeof(struct sctp_authchunks) + size;
2928                                 }
2929                                 SCTP_TCB_UNLOCK(stcb);
2930                         } else {
2931                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2932                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2933                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2934                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2935                                         /* get off the endpoint */
2936                                         SCTP_INP_RLOCK(inp);
2937                                         chklist = inp->sctp_ep.local_auth_chunks;
2938                                         /* is there enough space? */
2939                                         size = sctp_auth_get_chklist_size(chklist);
2940                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2941                                                 error = EINVAL;
2942                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2943                                         } else {
2944                                                 /* copy in the chunks */
2945                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2946                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2947                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2948                                         }
2949                                         SCTP_INP_RUNLOCK(inp);
2950                                 } else {
2951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2952                                         error = EINVAL;
2953                                 }
2954                         }
2955                         break;
2956                 }
2957         case SCTP_PEER_AUTH_CHUNKS:
2958                 {
2959                         struct sctp_authchunks *sac;
2960                         sctp_auth_chklist_t *chklist = NULL;
2961                         size_t size = 0;
2962
2963                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2964                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2965
2966                         if (stcb) {
2967                                 /* get off the assoc */
2968                                 chklist = stcb->asoc.peer_auth_chunks;
2969                                 /* is there enough space? */
2970                                 size = sctp_auth_get_chklist_size(chklist);
2971                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2972                                         error = EINVAL;
2973                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2974                                 } else {
2975                                         /* copy in the chunks */
2976                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2977                                         sac->gauth_number_of_chunks = (uint32_t)size;
2978                                         *optsize = sizeof(struct sctp_authchunks) + size;
2979                                 }
2980                                 SCTP_TCB_UNLOCK(stcb);
2981                         } else {
2982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2983                                 error = ENOENT;
2984                         }
2985                         break;
2986                 }
2987         case SCTP_EVENT:
2988                 {
2989                         struct sctp_event *event;
2990                         uint32_t event_type;
2991
2992                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2993                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2994
2995                         switch (event->se_type) {
2996                         case SCTP_ASSOC_CHANGE:
2997                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2998                                 break;
2999                         case SCTP_PEER_ADDR_CHANGE:
3000                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3001                                 break;
3002                         case SCTP_REMOTE_ERROR:
3003                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3004                                 break;
3005                         case SCTP_SEND_FAILED:
3006                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3007                                 break;
3008                         case SCTP_SHUTDOWN_EVENT:
3009                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3010                                 break;
3011                         case SCTP_ADAPTATION_INDICATION:
3012                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3013                                 break;
3014                         case SCTP_PARTIAL_DELIVERY_EVENT:
3015                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3016                                 break;
3017                         case SCTP_AUTHENTICATION_EVENT:
3018                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3019                                 break;
3020                         case SCTP_STREAM_RESET_EVENT:
3021                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3022                                 break;
3023                         case SCTP_SENDER_DRY_EVENT:
3024                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3025                                 break;
3026                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3027                                 event_type = 0;
3028                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3029                                 error = ENOTSUP;
3030                                 break;
3031                         case SCTP_ASSOC_RESET_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3033                                 break;
3034                         case SCTP_STREAM_CHANGE_EVENT:
3035                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3036                                 break;
3037                         case SCTP_SEND_FAILED_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3039                                 break;
3040                         default:
3041                                 event_type = 0;
3042                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3043                                 error = EINVAL;
3044                                 break;
3045                         }
3046                         if (event_type > 0) {
3047                                 if (stcb) {
3048                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3049                                 } else {
3050                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3051                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3052                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3053                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3054                                                 SCTP_INP_RLOCK(inp);
3055                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3056                                                 SCTP_INP_RUNLOCK(inp);
3057                                         } else {
3058                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3059                                                 error = EINVAL;
3060                                         }
3061                                 }
3062                         }
3063                         if (stcb != NULL) {
3064                                 SCTP_TCB_UNLOCK(stcb);
3065                         }
3066                         if (error == 0) {
3067                                 *optsize = sizeof(struct sctp_event);
3068                         }
3069                         break;
3070                 }
3071         case SCTP_RECVRCVINFO:
3072                 if (*optsize < sizeof(int)) {
3073                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3074                         error = EINVAL;
3075                 } else {
3076                         SCTP_INP_RLOCK(inp);
3077                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3078                         SCTP_INP_RUNLOCK(inp);
3079                         *optsize = sizeof(int);
3080                 }
3081                 break;
3082         case SCTP_RECVNXTINFO:
3083                 if (*optsize < sizeof(int)) {
3084                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3085                         error = EINVAL;
3086                 } else {
3087                         SCTP_INP_RLOCK(inp);
3088                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3089                         SCTP_INP_RUNLOCK(inp);
3090                         *optsize = sizeof(int);
3091                 }
3092                 break;
3093         case SCTP_DEFAULT_SNDINFO:
3094                 {
3095                         struct sctp_sndinfo *info;
3096
3097                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3098                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3099
3100                         if (stcb) {
3101                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3102                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3103                                 info->snd_flags &= 0xfff0;
3104                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3105                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3106                                 SCTP_TCB_UNLOCK(stcb);
3107                         } else {
3108                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3109                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3110                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3111                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3112                                         SCTP_INP_RLOCK(inp);
3113                                         info->snd_sid = inp->def_send.sinfo_stream;
3114                                         info->snd_flags = inp->def_send.sinfo_flags;
3115                                         info->snd_flags &= 0xfff0;
3116                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3117                                         info->snd_context = inp->def_send.sinfo_context;
3118                                         SCTP_INP_RUNLOCK(inp);
3119                                 } else {
3120                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3121                                         error = EINVAL;
3122                                 }
3123                         }
3124                         if (error == 0) {
3125                                 *optsize = sizeof(struct sctp_sndinfo);
3126                         }
3127                         break;
3128                 }
3129         case SCTP_DEFAULT_PRINFO:
3130                 {
3131                         struct sctp_default_prinfo *info;
3132
3133                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3134                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3135
3136                         if (stcb) {
3137                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3138                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
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                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3144                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3145                                         SCTP_INP_RLOCK(inp);
3146                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3147                                         info->pr_value = inp->def_send.sinfo_timetolive;
3148                                         SCTP_INP_RUNLOCK(inp);
3149                                 } else {
3150                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3151                                         error = EINVAL;
3152                                 }
3153                         }
3154                         if (error == 0) {
3155                                 *optsize = sizeof(struct sctp_default_prinfo);
3156                         }
3157                         break;
3158                 }
3159         case SCTP_PEER_ADDR_THLDS:
3160                 {
3161                         struct sctp_paddrthlds *thlds;
3162                         struct sctp_nets *net;
3163                         struct sockaddr *addr;
3164 #if defined(INET) && defined(INET6)
3165                         struct sockaddr_in sin_store;
3166 #endif
3167
3168                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3169                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3170
3171 #if defined(INET) && defined(INET6)
3172                         if (thlds->spt_address.ss_family == AF_INET6) {
3173                                 struct sockaddr_in6 *sin6;
3174
3175                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3176                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3177                                         in6_sin6_2_sin(&sin_store, sin6);
3178                                         addr = (struct sockaddr *)&sin_store;
3179                                 } else {
3180                                         addr = (struct sockaddr *)&thlds->spt_address;
3181                                 }
3182                         } else {
3183                                 addr = (struct sockaddr *)&thlds->spt_address;
3184                         }
3185 #else
3186                         addr = (struct sockaddr *)&thlds->spt_address;
3187 #endif
3188                         if (stcb != NULL) {
3189                                 net = sctp_findnet(stcb, addr);
3190                         } else {
3191                                 /*
3192                                  * We increment here since
3193                                  * sctp_findassociation_ep_addr() wil do a
3194                                  * decrement if it finds the stcb as long as
3195                                  * the locked tcb (last argument) is NOT a
3196                                  * TCB.. aka NULL.
3197                                  */
3198                                 net = NULL;
3199                                 SCTP_INP_INCR_REF(inp);
3200                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3201                                 if (stcb == NULL) {
3202                                         SCTP_INP_DECR_REF(inp);
3203                                 }
3204                         }
3205                         if ((stcb != NULL) && (net == NULL)) {
3206 #ifdef INET
3207                                 if (addr->sa_family == AF_INET) {
3208                                         struct sockaddr_in *sin;
3209
3210                                         sin = (struct sockaddr_in *)addr;
3211                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3212                                                 error = EINVAL;
3213                                                 SCTP_TCB_UNLOCK(stcb);
3214                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3215                                                 break;
3216                                         }
3217                                 } else
3218 #endif
3219 #ifdef INET6
3220                                 if (addr->sa_family == AF_INET6) {
3221                                         struct sockaddr_in6 *sin6;
3222
3223                                         sin6 = (struct sockaddr_in6 *)addr;
3224                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3225                                                 error = EINVAL;
3226                                                 SCTP_TCB_UNLOCK(stcb);
3227                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3228                                                 break;
3229                                         }
3230                                 } else
3231 #endif
3232                                 {
3233                                         error = EAFNOSUPPORT;
3234                                         SCTP_TCB_UNLOCK(stcb);
3235                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3236                                         break;
3237                                 }
3238                         }
3239
3240                         if (stcb != NULL) {
3241                                 if (net != NULL) {
3242                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3243                                         thlds->spt_pathpfthld = net->pf_threshold;
3244                                         thlds->spt_pathcpthld = 0xffff;
3245                                 } else {
3246                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3247                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3248                                         thlds->spt_pathcpthld = 0xffff;
3249                                 }
3250                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3251                                 SCTP_TCB_UNLOCK(stcb);
3252                         } else {
3253                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3254                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3255                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3256                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3257                                         /* Use endpoint defaults */
3258                                         SCTP_INP_RLOCK(inp);
3259                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3260                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3261                                         thlds->spt_pathcpthld = 0xffff;
3262                                         SCTP_INP_RUNLOCK(inp);
3263                                 } else {
3264                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3265                                         error = EINVAL;
3266                                 }
3267                         }
3268                         if (error == 0) {
3269                                 *optsize = sizeof(struct sctp_paddrthlds);
3270                         }
3271                         break;
3272                 }
3273         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3274                 {
3275                         struct sctp_udpencaps *encaps;
3276                         struct sctp_nets *net;
3277                         struct sockaddr *addr;
3278 #if defined(INET) && defined(INET6)
3279                         struct sockaddr_in sin_store;
3280 #endif
3281
3282                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3283                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3284
3285 #if defined(INET) && defined(INET6)
3286                         if (encaps->sue_address.ss_family == AF_INET6) {
3287                                 struct sockaddr_in6 *sin6;
3288
3289                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3290                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3291                                         in6_sin6_2_sin(&sin_store, sin6);
3292                                         addr = (struct sockaddr *)&sin_store;
3293                                 } else {
3294                                         addr = (struct sockaddr *)&encaps->sue_address;
3295                                 }
3296                         } else {
3297                                 addr = (struct sockaddr *)&encaps->sue_address;
3298                         }
3299 #else
3300                         addr = (struct sockaddr *)&encaps->sue_address;
3301 #endif
3302                         if (stcb) {
3303                                 net = sctp_findnet(stcb, addr);
3304                         } else {
3305                                 /*
3306                                  * We increment here since
3307                                  * sctp_findassociation_ep_addr() wil do a
3308                                  * decrement if it finds the stcb as long as
3309                                  * the locked tcb (last argument) is NOT a
3310                                  * TCB.. aka NULL.
3311                                  */
3312                                 net = NULL;
3313                                 SCTP_INP_INCR_REF(inp);
3314                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3315                                 if (stcb == NULL) {
3316                                         SCTP_INP_DECR_REF(inp);
3317                                 }
3318                         }
3319                         if ((stcb != NULL) && (net == NULL)) {
3320 #ifdef INET
3321                                 if (addr->sa_family == AF_INET) {
3322                                         struct sockaddr_in *sin;
3323
3324                                         sin = (struct sockaddr_in *)addr;
3325                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3326                                                 error = EINVAL;
3327                                                 SCTP_TCB_UNLOCK(stcb);
3328                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3329                                                 break;
3330                                         }
3331                                 } else
3332 #endif
3333 #ifdef INET6
3334                                 if (addr->sa_family == AF_INET6) {
3335                                         struct sockaddr_in6 *sin6;
3336
3337                                         sin6 = (struct sockaddr_in6 *)addr;
3338                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3339                                                 error = EINVAL;
3340                                                 SCTP_TCB_UNLOCK(stcb);
3341                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3342                                                 break;
3343                                         }
3344                                 } else
3345 #endif
3346                                 {
3347                                         error = EAFNOSUPPORT;
3348                                         SCTP_TCB_UNLOCK(stcb);
3349                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3350                                         break;
3351                                 }
3352                         }
3353
3354                         if (stcb != NULL) {
3355                                 if (net) {
3356                                         encaps->sue_port = net->port;
3357                                 } else {
3358                                         encaps->sue_port = stcb->asoc.port;
3359                                 }
3360                                 SCTP_TCB_UNLOCK(stcb);
3361                         } else {
3362                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3363                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3364                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3365                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3366                                         SCTP_INP_RLOCK(inp);
3367                                         encaps->sue_port = inp->sctp_ep.port;
3368                                         SCTP_INP_RUNLOCK(inp);
3369                                 } else {
3370                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3371                                         error = EINVAL;
3372                                 }
3373                         }
3374                         if (error == 0) {
3375                                 *optsize = sizeof(struct sctp_udpencaps);
3376                         }
3377                         break;
3378                 }
3379         case SCTP_ECN_SUPPORTED:
3380                 {
3381                         struct sctp_assoc_value *av;
3382
3383                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3384                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3385
3386                         if (stcb) {
3387                                 av->assoc_value = stcb->asoc.ecn_supported;
3388                                 SCTP_TCB_UNLOCK(stcb);
3389                         } else {
3390                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3391                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3392                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3393                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3394                                         SCTP_INP_RLOCK(inp);
3395                                         av->assoc_value = inp->ecn_supported;
3396                                         SCTP_INP_RUNLOCK(inp);
3397                                 } else {
3398                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3399                                         error = EINVAL;
3400                                 }
3401                         }
3402                         if (error == 0) {
3403                                 *optsize = sizeof(struct sctp_assoc_value);
3404                         }
3405                         break;
3406                 }
3407         case SCTP_PR_SUPPORTED:
3408                 {
3409                         struct sctp_assoc_value *av;
3410
3411                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3412                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3413
3414                         if (stcb) {
3415                                 av->assoc_value = stcb->asoc.prsctp_supported;
3416                                 SCTP_TCB_UNLOCK(stcb);
3417                         } else {
3418                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3419                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3420                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3421                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3422                                         SCTP_INP_RLOCK(inp);
3423                                         av->assoc_value = inp->prsctp_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_AUTH_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.auth_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                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3449                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3450                                         SCTP_INP_RLOCK(inp);
3451                                         av->assoc_value = inp->auth_supported;
3452                                         SCTP_INP_RUNLOCK(inp);
3453                                 } else {
3454                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3455                                         error = EINVAL;
3456                                 }
3457                         }
3458                         if (error == 0) {
3459                                 *optsize = sizeof(struct sctp_assoc_value);
3460                         }
3461                         break;
3462                 }
3463         case SCTP_ASCONF_SUPPORTED:
3464                 {
3465                         struct sctp_assoc_value *av;
3466
3467                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3468                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3469
3470                         if (stcb) {
3471                                 av->assoc_value = stcb->asoc.asconf_supported;
3472                                 SCTP_TCB_UNLOCK(stcb);
3473                         } else {
3474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3476                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3477                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3478                                         SCTP_INP_RLOCK(inp);
3479                                         av->assoc_value = inp->asconf_supported;
3480                                         SCTP_INP_RUNLOCK(inp);
3481                                 } else {
3482                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3483                                         error = EINVAL;
3484                                 }
3485                         }
3486                         if (error == 0) {
3487                                 *optsize = sizeof(struct sctp_assoc_value);
3488                         }
3489                         break;
3490                 }
3491         case SCTP_RECONFIG_SUPPORTED:
3492                 {
3493                         struct sctp_assoc_value *av;
3494
3495                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3496                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3497
3498                         if (stcb) {
3499                                 av->assoc_value = stcb->asoc.reconfig_supported;
3500                                 SCTP_TCB_UNLOCK(stcb);
3501                         } else {
3502                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3503                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3504                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3505                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3506                                         SCTP_INP_RLOCK(inp);
3507                                         av->assoc_value = inp->reconfig_supported;
3508                                         SCTP_INP_RUNLOCK(inp);
3509                                 } else {
3510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3511                                         error = EINVAL;
3512                                 }
3513                         }
3514                         if (error == 0) {
3515                                 *optsize = sizeof(struct sctp_assoc_value);
3516                         }
3517                         break;
3518                 }
3519         case SCTP_NRSACK_SUPPORTED:
3520                 {
3521                         struct sctp_assoc_value *av;
3522
3523                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3524                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3525
3526                         if (stcb) {
3527                                 av->assoc_value = stcb->asoc.nrsack_supported;
3528                                 SCTP_TCB_UNLOCK(stcb);
3529                         } else {
3530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3532                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3533                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3534                                         SCTP_INP_RLOCK(inp);
3535                                         av->assoc_value = inp->nrsack_supported;
3536                                         SCTP_INP_RUNLOCK(inp);
3537                                 } else {
3538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3539                                         error = EINVAL;
3540                                 }
3541                         }
3542                         if (error == 0) {
3543                                 *optsize = sizeof(struct sctp_assoc_value);
3544                         }
3545                         break;
3546                 }
3547         case SCTP_PKTDROP_SUPPORTED:
3548                 {
3549                         struct sctp_assoc_value *av;
3550
3551                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3552                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3553
3554                         if (stcb) {
3555                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3556                                 SCTP_TCB_UNLOCK(stcb);
3557                         } else {
3558                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3559                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3560                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3561                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3562                                         SCTP_INP_RLOCK(inp);
3563                                         av->assoc_value = inp->pktdrop_supported;
3564                                         SCTP_INP_RUNLOCK(inp);
3565                                 } else {
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         if (error == 0) {
3571                                 *optsize = sizeof(struct sctp_assoc_value);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_ENABLE_STREAM_RESET:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3581
3582                         if (stcb) {
3583                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3584                                 SCTP_TCB_UNLOCK(stcb);
3585                         } else {
3586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3588                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3590                                         SCTP_INP_RLOCK(inp);
3591                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3592                                         SCTP_INP_RUNLOCK(inp);
3593                                 } else {
3594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3595                                         error = EINVAL;
3596                                 }
3597                         }
3598                         if (error == 0) {
3599                                 *optsize = sizeof(struct sctp_assoc_value);
3600                         }
3601                         break;
3602                 }
3603         case SCTP_PR_STREAM_STATUS:
3604                 {
3605                         struct sctp_prstatus *sprstat;
3606                         uint16_t sid;
3607                         uint16_t policy;
3608
3609                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3610                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3611
3612                         sid = sprstat->sprstat_sid;
3613                         policy = sprstat->sprstat_policy;
3614 #if defined(SCTP_DETAILED_STR_STATS)
3615                         if ((stcb != NULL) &&
3616                             (sid < stcb->asoc.streamoutcnt) &&
3617                             (policy != SCTP_PR_SCTP_NONE) &&
3618                             ((policy <= SCTP_PR_SCTP_MAX) ||
3619                             (policy == SCTP_PR_SCTP_ALL))) {
3620                                 if (policy == SCTP_PR_SCTP_ALL) {
3621                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3622                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3623                                 } else {
3624                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3625                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3626                                 }
3627 #else
3628                         if ((stcb != NULL) &&
3629                             (sid < stcb->asoc.streamoutcnt) &&
3630                             (policy == SCTP_PR_SCTP_ALL)) {
3631                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3632                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3633 #endif
3634                         } else {
3635                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3636                                 error = EINVAL;
3637                         }
3638                         if (stcb != NULL) {
3639                                 SCTP_TCB_UNLOCK(stcb);
3640                         }
3641                         if (error == 0) {
3642                                 *optsize = sizeof(struct sctp_prstatus);
3643                         }
3644                         break;
3645                 }
3646         case SCTP_PR_ASSOC_STATUS:
3647                 {
3648                         struct sctp_prstatus *sprstat;
3649                         uint16_t policy;
3650
3651                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3652                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3653
3654                         policy = sprstat->sprstat_policy;
3655                         if ((stcb != NULL) &&
3656                             (policy != SCTP_PR_SCTP_NONE) &&
3657                             ((policy <= SCTP_PR_SCTP_MAX) ||
3658                             (policy == SCTP_PR_SCTP_ALL))) {
3659                                 if (policy == SCTP_PR_SCTP_ALL) {
3660                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3661                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3662                                 } else {
3663                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3664                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3665                                 }
3666                         } else {
3667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3668                                 error = EINVAL;
3669                         }
3670                         if (stcb != NULL) {
3671                                 SCTP_TCB_UNLOCK(stcb);
3672                         }
3673                         if (error == 0) {
3674                                 *optsize = sizeof(struct sctp_prstatus);
3675                         }
3676                         break;
3677                 }
3678         case SCTP_MAX_CWND:
3679                 {
3680                         struct sctp_assoc_value *av;
3681
3682                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3683                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3684
3685                         if (stcb) {
3686                                 av->assoc_value = stcb->asoc.max_cwnd;
3687                                 SCTP_TCB_UNLOCK(stcb);
3688                         } else {
3689                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3690                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3691                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3692                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3693                                         SCTP_INP_RLOCK(inp);
3694                                         av->assoc_value = inp->max_cwnd;
3695                                         SCTP_INP_RUNLOCK(inp);
3696                                 } else {
3697                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3698                                         error = EINVAL;
3699                                 }
3700                         }
3701                         if (error == 0) {
3702                                 *optsize = sizeof(struct sctp_assoc_value);
3703                         }
3704                         break;
3705                 }
3706         default:
3707                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3708                 error = ENOPROTOOPT;
3709                 break;
3710         }                       /* end switch (sopt->sopt_name) */
3711         if (error) {
3712                 *optsize = 0;
3713         }
3714         return (error);
3715 }
3716
3717 static int
3718 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3719     void *p)
3720 {
3721         int error, set_opt;
3722         uint32_t *mopt;
3723         struct sctp_tcb *stcb = NULL;
3724         struct sctp_inpcb *inp = NULL;
3725         uint32_t vrf_id;
3726
3727         if (optval == NULL) {
3728                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3729                 return (EINVAL);
3730         }
3731         inp = (struct sctp_inpcb *)so->so_pcb;
3732         if (inp == NULL) {
3733                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3734                 return (EINVAL);
3735         }
3736         vrf_id = inp->def_vrf_id;
3737
3738         error = 0;
3739         switch (optname) {
3740         case SCTP_NODELAY:
3741         case SCTP_AUTOCLOSE:
3742         case SCTP_AUTO_ASCONF:
3743         case SCTP_EXPLICIT_EOR:
3744         case SCTP_DISABLE_FRAGMENTS:
3745         case SCTP_USE_EXT_RCVINFO:
3746         case SCTP_I_WANT_MAPPED_V4_ADDR:
3747                 /* copy in the option value */
3748                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3749                 set_opt = 0;
3750                 if (error)
3751                         break;
3752                 switch (optname) {
3753                 case SCTP_DISABLE_FRAGMENTS:
3754                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3755                         break;
3756                 case SCTP_AUTO_ASCONF:
3757                         /*
3758                          * NOTE: we don't really support this flag
3759                          */
3760                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3761                                 /* only valid for bound all sockets */
3762                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3763                                     (*mopt != 0)) {
3764                                         /* forbidden by admin */
3765                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3766                                         return (EPERM);
3767                                 }
3768                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3769                         } else {
3770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3771                                 return (EINVAL);
3772                         }
3773                         break;
3774                 case SCTP_EXPLICIT_EOR:
3775                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3776                         break;
3777                 case SCTP_USE_EXT_RCVINFO:
3778                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3779                         break;
3780                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3781                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3782                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3783                         } else {
3784                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3785                                 return (EINVAL);
3786                         }
3787                         break;
3788                 case SCTP_NODELAY:
3789                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3790                         break;
3791                 case SCTP_AUTOCLOSE:
3792                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3793                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3795                                 return (EINVAL);
3796                         }
3797                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3798                         /*
3799                          * The value is in ticks. Note this does not effect
3800                          * old associations, only new ones.
3801                          */
3802                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3803                         break;
3804                 }
3805                 SCTP_INP_WLOCK(inp);
3806                 if (*mopt != 0) {
3807                         sctp_feature_on(inp, set_opt);
3808                 } else {
3809                         sctp_feature_off(inp, set_opt);
3810                 }
3811                 SCTP_INP_WUNLOCK(inp);
3812                 break;
3813         case SCTP_REUSE_PORT:
3814                 {
3815                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3816                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3817                                 /* Can't set it after we are bound */
3818                                 error = EINVAL;
3819                                 break;
3820                         }
3821                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3822                                 /* Can't do this for a 1-m socket */
3823                                 error = EINVAL;
3824                                 break;
3825                         }
3826                         if (optval)
3827                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3828                         else
3829                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3830                         break;
3831                 }
3832         case SCTP_PARTIAL_DELIVERY_POINT:
3833                 {
3834                         uint32_t *value;
3835
3836                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3837                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3838                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3839                                 error = EINVAL;
3840                                 break;
3841                         }
3842                         inp->partial_delivery_point = *value;
3843                         break;
3844                 }
3845         case SCTP_FRAGMENT_INTERLEAVE:
3846                 /* not yet until we re-write sctp_recvmsg() */
3847                 {
3848                         uint32_t *level;
3849
3850                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3851                         if (*level == SCTP_FRAG_LEVEL_2) {
3852                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3853                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3854                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3855                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3856                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3857                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3858                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3859                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3860
3861                         } else {
3862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3863                                 error = EINVAL;
3864                         }
3865                         break;
3866                 }
3867         case SCTP_INTERLEAVING_SUPPORTED:
3868                 {
3869                         struct sctp_assoc_value *av;
3870
3871                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3872                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3873
3874                         if (stcb) {
3875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3876                                 error = EINVAL;
3877                                 SCTP_TCB_UNLOCK(stcb);
3878                         } else {
3879                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3880                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3881                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3882                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3883                                         SCTP_INP_WLOCK(inp);
3884                                         if (av->assoc_value == 0) {
3885                                                 inp->idata_supported = 0;
3886                                         } else {
3887                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3888                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3889                                                         inp->idata_supported = 1;
3890                                                 } else {
3891                                                         /*
3892                                                          * Must have Frag
3893                                                          * interleave and
3894                                                          * stream interleave
3895                                                          * on
3896                                                          */
3897                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3898                                                         error = EINVAL;
3899                                                 }
3900                                         }
3901                                         SCTP_INP_WUNLOCK(inp);
3902                                 } else {
3903                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3904                                         error = EINVAL;
3905                                 }
3906                         }
3907                         break;
3908                 }
3909         case SCTP_CMT_ON_OFF:
3910                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3911                         struct sctp_assoc_value *av;
3912
3913                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3914                         if (av->assoc_value > SCTP_CMT_MAX) {
3915                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3916                                 error = EINVAL;
3917                                 break;
3918                         }
3919                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3920                         if (stcb) {
3921                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3922                                 SCTP_TCB_UNLOCK(stcb);
3923                         } else {
3924                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3925                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3926                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3927                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3928                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3929                                         SCTP_INP_WLOCK(inp);
3930                                         inp->sctp_cmt_on_off = av->assoc_value;
3931                                         SCTP_INP_WUNLOCK(inp);
3932                                 }
3933                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3934                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3935                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3936                                         SCTP_INP_RLOCK(inp);
3937                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3938                                                 SCTP_TCB_LOCK(stcb);
3939                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3940                                                 SCTP_TCB_UNLOCK(stcb);
3941                                         }
3942                                         SCTP_INP_RUNLOCK(inp);
3943                                 }
3944                         }
3945                 } else {
3946                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3947                         error = ENOPROTOOPT;
3948                 }
3949                 break;
3950         case SCTP_PLUGGABLE_CC:
3951                 {
3952                         struct sctp_assoc_value *av;
3953                         struct sctp_nets *net;
3954
3955                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3956                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3957                             (av->assoc_value != SCTP_CC_HSTCP) &&
3958                             (av->assoc_value != SCTP_CC_HTCP) &&
3959                             (av->assoc_value != SCTP_CC_RTCC)) {
3960                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3961                                 error = EINVAL;
3962                                 break;
3963                         }
3964                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3965                         if (stcb) {
3966                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3967                                 stcb->asoc.congestion_control_module = av->assoc_value;
3968                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3969                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3970                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3971                                         }
3972                                 }
3973                                 SCTP_TCB_UNLOCK(stcb);
3974                         } else {
3975                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3976                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3977                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3978                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3979                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3980                                         SCTP_INP_WLOCK(inp);
3981                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3982                                         SCTP_INP_WUNLOCK(inp);
3983                                 }
3984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3985                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3986                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3987                                         SCTP_INP_RLOCK(inp);
3988                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3989                                                 SCTP_TCB_LOCK(stcb);
3990                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3991                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3992                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3993                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3994                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3995                                                         }
3996                                                 }
3997                                                 SCTP_TCB_UNLOCK(stcb);
3998                                         }
3999                                         SCTP_INP_RUNLOCK(inp);
4000                                 }
4001                         }
4002                         break;
4003                 }
4004         case SCTP_CC_OPTION:
4005                 {
4006                         struct sctp_cc_option *cc_opt;
4007
4008                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4009                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4010                         if (stcb == NULL) {
4011                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4012                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4013                                         SCTP_INP_RLOCK(inp);
4014                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4015                                                 SCTP_TCB_LOCK(stcb);
4016                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4017                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4018                                                 }
4019                                                 SCTP_TCB_UNLOCK(stcb);
4020                                         }
4021                                         SCTP_INP_RUNLOCK(inp);
4022                                 } else {
4023                                         error = EINVAL;
4024                                 }
4025                         } else {
4026                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4027                                         error = ENOTSUP;
4028                                 } else {
4029                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4030                                             cc_opt);
4031                                 }
4032                                 SCTP_TCB_UNLOCK(stcb);
4033                         }
4034                         break;
4035                 }
4036         case SCTP_PLUGGABLE_SS:
4037                 {
4038                         struct sctp_assoc_value *av;
4039
4040                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4041                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4042                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4043                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4044                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4045                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4046                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4047                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4048                                 error = EINVAL;
4049                                 break;
4050                         }
4051                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4052                         if (stcb) {
4053                                 SCTP_TCB_SEND_LOCK(stcb);
4054                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4055                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4056                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4057                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4058                                 SCTP_TCB_SEND_UNLOCK(stcb);
4059                                 SCTP_TCB_UNLOCK(stcb);
4060                         } else {
4061                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4062                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4063                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4064                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4065                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4066                                         SCTP_INP_WLOCK(inp);
4067                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4068                                         SCTP_INP_WUNLOCK(inp);
4069                                 }
4070                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4071                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4072                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4073                                         SCTP_INP_RLOCK(inp);
4074                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4075                                                 SCTP_TCB_LOCK(stcb);
4076                                                 SCTP_TCB_SEND_LOCK(stcb);
4077                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4078                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4079                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4080                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4081                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4082                                                 SCTP_TCB_UNLOCK(stcb);
4083                                         }
4084                                         SCTP_INP_RUNLOCK(inp);
4085                                 }
4086                         }
4087                         break;
4088                 }
4089         case SCTP_SS_VALUE:
4090                 {
4091                         struct sctp_stream_value *av;
4092
4093                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4094                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4095                         if (stcb) {
4096                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4097                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4098                                     av->stream_value) < 0)) {
4099                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4100                                         error = EINVAL;
4101                                 }
4102                                 SCTP_TCB_UNLOCK(stcb);
4103                         } else {
4104                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4105                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4106                                         SCTP_INP_RLOCK(inp);
4107                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4108                                                 SCTP_TCB_LOCK(stcb);
4109                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4110                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4111                                                             &stcb->asoc,
4112                                                             &stcb->asoc.strmout[av->stream_id],
4113                                                             av->stream_value);
4114                                                 }
4115                                                 SCTP_TCB_UNLOCK(stcb);
4116                                         }
4117                                         SCTP_INP_RUNLOCK(inp);
4118                                 } else {
4119                                         /*
4120                                          * Can't set stream value without
4121                                          * association
4122                                          */
4123                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4124                                         error = EINVAL;
4125                                 }
4126                         }
4127                         break;
4128                 }
4129         case SCTP_CLR_STAT_LOG:
4130                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4131                 error = EOPNOTSUPP;
4132                 break;
4133         case SCTP_CONTEXT:
4134                 {
4135                         struct sctp_assoc_value *av;
4136
4137                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4138                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4139
4140                         if (stcb) {
4141                                 stcb->asoc.context = av->assoc_value;
4142                                 SCTP_TCB_UNLOCK(stcb);
4143                         } else {
4144                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4145                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4146                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4147                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4148                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4149                                         SCTP_INP_WLOCK(inp);
4150                                         inp->sctp_context = av->assoc_value;
4151                                         SCTP_INP_WUNLOCK(inp);
4152                                 }
4153                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4154                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4155                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4156                                         SCTP_INP_RLOCK(inp);
4157                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4158                                                 SCTP_TCB_LOCK(stcb);
4159                                                 stcb->asoc.context = av->assoc_value;
4160                                                 SCTP_TCB_UNLOCK(stcb);
4161                                         }
4162                                         SCTP_INP_RUNLOCK(inp);
4163                                 }
4164                         }
4165                         break;
4166                 }
4167         case SCTP_VRF_ID:
4168                 {
4169                         uint32_t *default_vrfid;
4170
4171                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4172                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4173                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4174                                 error = EINVAL;
4175                                 break;
4176                         }
4177                         inp->def_vrf_id = *default_vrfid;
4178                         break;
4179                 }
4180         case SCTP_DEL_VRF_ID:
4181                 {
4182                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4183                         error = EOPNOTSUPP;
4184                         break;
4185                 }
4186         case SCTP_ADD_VRF_ID:
4187                 {
4188                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4189                         error = EOPNOTSUPP;
4190                         break;
4191                 }
4192         case SCTP_DELAYED_SACK:
4193                 {
4194                         struct sctp_sack_info *sack;
4195
4196                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4197                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4198                         if (sack->sack_delay) {
4199                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4200                                         error = EINVAL;
4201                                         if (stcb != NULL) {
4202                                                 SCTP_TCB_UNLOCK(stcb);
4203                                         }
4204                                         break;
4205                                 }
4206                         }
4207                         if (stcb) {
4208                                 if (sack->sack_delay) {
4209                                         stcb->asoc.delayed_ack = sack->sack_delay;
4210                                 }
4211                                 if (sack->sack_freq) {
4212                                         stcb->asoc.sack_freq = sack->sack_freq;
4213                                 }
4214                                 SCTP_TCB_UNLOCK(stcb);
4215                         } else {
4216                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4217                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4218                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4219                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4220                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4221                                         SCTP_INP_WLOCK(inp);
4222                                         if (sack->sack_delay) {
4223                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4224                                         }
4225                                         if (sack->sack_freq) {
4226                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4227                                         }
4228                                         SCTP_INP_WUNLOCK(inp);
4229                                 }
4230                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4231                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4232                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4233                                         SCTP_INP_RLOCK(inp);
4234                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4235                                                 SCTP_TCB_LOCK(stcb);
4236                                                 if (sack->sack_delay) {
4237                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4238                                                 }
4239                                                 if (sack->sack_freq) {
4240                                                         stcb->asoc.sack_freq = sack->sack_freq;
4241                                                 }
4242                                                 SCTP_TCB_UNLOCK(stcb);
4243                                         }
4244                                         SCTP_INP_RUNLOCK(inp);
4245                                 }
4246                         }
4247                         break;
4248                 }
4249         case SCTP_AUTH_CHUNK:
4250                 {
4251                         struct sctp_authchunk *sauth;
4252
4253                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4254
4255                         SCTP_INP_WLOCK(inp);
4256                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4257                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4258                                 error = EINVAL;
4259                         } else {
4260                                 inp->auth_supported = 1;
4261                         }
4262                         SCTP_INP_WUNLOCK(inp);
4263                         break;
4264                 }
4265         case SCTP_AUTH_KEY:
4266                 {
4267                         struct sctp_authkey *sca;
4268                         struct sctp_keyhead *shared_keys;
4269                         sctp_sharedkey_t *shared_key;
4270                         sctp_key_t *key = NULL;
4271                         size_t size;
4272
4273                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4274                         if (sca->sca_keylength == 0) {
4275                                 size = optsize - sizeof(struct sctp_authkey);
4276                         } else {
4277                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4278                                         size = sca->sca_keylength;
4279                                 } else {
4280                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4281                                         error = EINVAL;
4282                                         break;
4283                                 }
4284                         }
4285                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4286
4287                         if (stcb) {
4288                                 shared_keys = &stcb->asoc.shared_keys;
4289                                 /* clear the cached keys for this key id */
4290                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4291                                 /*
4292                                  * create the new shared key and
4293                                  * insert/replace it
4294                                  */
4295                                 if (size > 0) {
4296                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4297                                         if (key == NULL) {
4298                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4299                                                 error = ENOMEM;
4300                                                 SCTP_TCB_UNLOCK(stcb);
4301                                                 break;
4302                                         }
4303                                 }
4304                                 shared_key = sctp_alloc_sharedkey();
4305                                 if (shared_key == NULL) {
4306                                         sctp_free_key(key);
4307                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4308                                         error = ENOMEM;
4309                                         SCTP_TCB_UNLOCK(stcb);
4310                                         break;
4311                                 }
4312                                 shared_key->key = key;
4313                                 shared_key->keyid = sca->sca_keynumber;
4314                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4315                                 SCTP_TCB_UNLOCK(stcb);
4316                         } else {
4317                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4318                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4319                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4320                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4321                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4322                                         SCTP_INP_WLOCK(inp);
4323                                         shared_keys = &inp->sctp_ep.shared_keys;
4324                                         /*
4325                                          * clear the cached keys on all
4326                                          * assocs for this key id
4327                                          */
4328                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4329                                         /*
4330                                          * create the new shared key and
4331                                          * insert/replace it
4332                                          */
4333                                         if (size > 0) {
4334                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4335                                                 if (key == NULL) {
4336                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4337                                                         error = ENOMEM;
4338                                                         SCTP_INP_WUNLOCK(inp);
4339                                                         break;
4340                                                 }
4341                                         }
4342                                         shared_key = sctp_alloc_sharedkey();
4343                                         if (shared_key == NULL) {
4344                                                 sctp_free_key(key);
4345                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4346                                                 error = ENOMEM;
4347                                                 SCTP_INP_WUNLOCK(inp);
4348                                                 break;
4349                                         }
4350                                         shared_key->key = key;
4351                                         shared_key->keyid = sca->sca_keynumber;
4352                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4353                                         SCTP_INP_WUNLOCK(inp);
4354                                 }
4355                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4356                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4357                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4358                                         SCTP_INP_RLOCK(inp);
4359                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4360                                                 SCTP_TCB_LOCK(stcb);
4361                                                 shared_keys = &stcb->asoc.shared_keys;
4362                                                 /*
4363                                                  * clear the cached keys for
4364                                                  * this key id
4365                                                  */
4366                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4367                                                 /*
4368                                                  * create the new shared key
4369                                                  * and insert/replace it
4370                                                  */
4371                                                 if (size > 0) {
4372                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4373                                                         if (key == NULL) {
4374                                                                 SCTP_TCB_UNLOCK(stcb);
4375                                                                 continue;
4376                                                         }
4377                                                 }
4378                                                 shared_key = sctp_alloc_sharedkey();
4379                                                 if (shared_key == NULL) {
4380                                                         sctp_free_key(key);
4381                                                         SCTP_TCB_UNLOCK(stcb);
4382                                                         continue;
4383                                                 }
4384                                                 shared_key->key = key;
4385                                                 shared_key->keyid = sca->sca_keynumber;
4386                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4387                                                 SCTP_TCB_UNLOCK(stcb);
4388                                         }
4389                                         SCTP_INP_RUNLOCK(inp);
4390                                 }
4391                         }
4392                         break;
4393                 }
4394         case SCTP_HMAC_IDENT:
4395                 {
4396                         struct sctp_hmacalgo *shmac;
4397                         sctp_hmaclist_t *hmaclist;
4398                         uint16_t hmacid;
4399                         uint32_t i;
4400
4401                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4402                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4403                             (shmac->shmac_number_of_idents > 0xffff)) {
4404                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4405                                 error = EINVAL;
4406                                 break;
4407                         }
4408
4409                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4410                         if (hmaclist == NULL) {
4411                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4412                                 error = ENOMEM;
4413                                 break;
4414                         }
4415                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4416                                 hmacid = shmac->shmac_idents[i];
4417                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4418                                          /* invalid HMACs were found */ ;
4419                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4420                                         error = EINVAL;
4421                                         sctp_free_hmaclist(hmaclist);
4422                                         goto sctp_set_hmac_done;
4423                                 }
4424                         }
4425                         for (i = 0; i < hmaclist->num_algo; i++) {
4426                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4427                                         /* already in list */
4428                                         break;
4429                                 }
4430                         }
4431                         if (i == hmaclist->num_algo) {
4432                                 /* not found in list */
4433                                 sctp_free_hmaclist(hmaclist);
4434                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4435                                 error = EINVAL;
4436                                 break;
4437                         }
4438                         /* set it on the endpoint */
4439                         SCTP_INP_WLOCK(inp);
4440                         if (inp->sctp_ep.local_hmacs)
4441                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4442                         inp->sctp_ep.local_hmacs = hmaclist;
4443                         SCTP_INP_WUNLOCK(inp);
4444         sctp_set_hmac_done:
4445                         break;
4446                 }
4447         case SCTP_AUTH_ACTIVE_KEY:
4448                 {
4449                         struct sctp_authkeyid *scact;
4450
4451                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4452                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4453
4454                         /* set the active key on the right place */
4455                         if (stcb) {
4456                                 /* set the active key on the assoc */
4457                                 if (sctp_auth_setactivekey(stcb,
4458                                     scact->scact_keynumber)) {
4459                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4460                                             SCTP_FROM_SCTP_USRREQ,
4461                                             EINVAL);
4462                                         error = EINVAL;
4463                                 }
4464                                 SCTP_TCB_UNLOCK(stcb);
4465                         } else {
4466                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4467                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4468                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
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 ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4479                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4480                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4481                                         SCTP_INP_RLOCK(inp);
4482                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4483                                                 SCTP_TCB_LOCK(stcb);
4484                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4485                                                 SCTP_TCB_UNLOCK(stcb);
4486                                         }
4487                                         SCTP_INP_RUNLOCK(inp);
4488                                 }
4489                         }
4490                         break;
4491                 }
4492         case SCTP_AUTH_DELETE_KEY:
4493                 {
4494                         struct sctp_authkeyid *scdel;
4495
4496                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4497                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4498
4499                         /* delete the key from the right place */
4500                         if (stcb) {
4501                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4503                                         error = EINVAL;
4504                                 }
4505                                 SCTP_TCB_UNLOCK(stcb);
4506                         } else {
4507                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4508                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4509                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4510                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4511                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4512                                         SCTP_INP_WLOCK(inp);
4513                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4514                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4515                                                 error = EINVAL;
4516                                         }
4517                                         SCTP_INP_WUNLOCK(inp);
4518                                 }
4519                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4520                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4521                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4522                                         SCTP_INP_RLOCK(inp);
4523                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4524                                                 SCTP_TCB_LOCK(stcb);
4525                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4526                                                 SCTP_TCB_UNLOCK(stcb);
4527                                         }
4528                                         SCTP_INP_RUNLOCK(inp);
4529                                 }
4530                         }
4531                         break;
4532                 }
4533         case SCTP_AUTH_DEACTIVATE_KEY:
4534                 {
4535                         struct sctp_authkeyid *keyid;
4536
4537                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4538                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4539
4540                         /* deactivate the key from the right place */
4541                         if (stcb) {
4542                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4543                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4544                                         error = EINVAL;
4545                                 }
4546                                 SCTP_TCB_UNLOCK(stcb);
4547                         } else {
4548                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4549                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4550                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4551                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4552                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4553                                         SCTP_INP_WLOCK(inp);
4554                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4555                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4556                                                 error = EINVAL;
4557                                         }
4558                                         SCTP_INP_WUNLOCK(inp);
4559                                 }
4560                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4561                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4562                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4563                                         SCTP_INP_RLOCK(inp);
4564                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4565                                                 SCTP_TCB_LOCK(stcb);
4566                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4567                                                 SCTP_TCB_UNLOCK(stcb);
4568                                         }
4569                                         SCTP_INP_RUNLOCK(inp);
4570                                 }
4571                         }
4572                         break;
4573                 }
4574         case SCTP_ENABLE_STREAM_RESET:
4575                 {
4576                         struct sctp_assoc_value *av;
4577
4578                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4579                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4580                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4581                                 error = EINVAL;
4582                                 break;
4583                         }
4584                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4585                         if (stcb) {
4586                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4587                                 SCTP_TCB_UNLOCK(stcb);
4588                         } else {
4589                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4590                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4591                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4592                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4593                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4594                                         SCTP_INP_WLOCK(inp);
4595                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4596                                         SCTP_INP_WUNLOCK(inp);
4597                                 }
4598                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4599                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4600                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4601                                         SCTP_INP_RLOCK(inp);
4602                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4603                                                 SCTP_TCB_LOCK(stcb);
4604                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4605                                                 SCTP_TCB_UNLOCK(stcb);
4606                                         }
4607                                         SCTP_INP_RUNLOCK(inp);
4608                                 }
4609                         }
4610                         break;
4611                 }
4612         case SCTP_RESET_STREAMS:
4613                 {
4614                         struct sctp_reset_streams *strrst;
4615                         int i, send_out = 0;
4616                         int send_in = 0;
4617
4618                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4619                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4620                         if (stcb == NULL) {
4621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4622                                 error = ENOENT;
4623                                 break;
4624                         }
4625                         if (stcb->asoc.reconfig_supported == 0) {
4626                                 /*
4627                                  * Peer does not support the chunk type.
4628                                  */
4629                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4630                                 error = EOPNOTSUPP;
4631                                 SCTP_TCB_UNLOCK(stcb);
4632                                 break;
4633                         }
4634                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4635                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4636                                 error = EINVAL;
4637                                 SCTP_TCB_UNLOCK(stcb);
4638                                 break;
4639                         }
4640                         if (sizeof(struct sctp_reset_streams) +
4641                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4642                                 error = EINVAL;
4643                                 SCTP_TCB_UNLOCK(stcb);
4644                                 break;
4645                         }
4646                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4647                                 send_in = 1;
4648                                 if (stcb->asoc.stream_reset_outstanding) {
4649                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4650                                         error = EALREADY;
4651                                         SCTP_TCB_UNLOCK(stcb);
4652                                         break;
4653                                 }
4654                         }
4655                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4656                                 send_out = 1;
4657                         }
4658                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4660                                 error = ENOMEM;
4661                                 SCTP_TCB_UNLOCK(stcb);
4662                                 break;
4663                         }
4664                         if ((send_in == 0) && (send_out == 0)) {
4665                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4666                                 error = EINVAL;
4667                                 SCTP_TCB_UNLOCK(stcb);
4668                                 break;
4669                         }
4670                         for (i = 0; i < strrst->srs_number_streams; i++) {
4671                                 if ((send_in) &&
4672                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4673                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4674                                         error = EINVAL;
4675                                         break;
4676                                 }
4677                                 if ((send_out) &&
4678                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4679                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4680                                         error = EINVAL;
4681                                         break;
4682                                 }
4683                         }
4684                         if (error) {
4685                                 SCTP_TCB_UNLOCK(stcb);
4686                                 break;
4687                         }
4688                         if (send_out) {
4689                                 int cnt;
4690                                 uint16_t strm;
4691
4692                                 if (strrst->srs_number_streams) {
4693                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4694                                                 strm = strrst->srs_stream_list[i];
4695                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4696                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4697                                                         cnt++;
4698                                                 }
4699                                         }
4700                                 } else {
4701                                         /* Its all */
4702                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4703                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4704                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4705                                                         cnt++;
4706                                                 }
4707                                         }
4708                                 }
4709                         }
4710                         if (send_in) {
4711                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4712                                     strrst->srs_stream_list,
4713                                     send_in, 0, 0, 0, 0, 0);
4714                         } else {
4715                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4716                         }
4717                         if (error == 0) {
4718                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4719                         } else {
4720                                 /*
4721                                  * For outgoing streams don't report any
4722                                  * problems in sending the request to the
4723                                  * application. XXX: Double check resetting
4724                                  * incoming streams.
4725                                  */
4726                                 error = 0;
4727                         }
4728                         SCTP_TCB_UNLOCK(stcb);
4729                         break;
4730                 }
4731         case SCTP_ADD_STREAMS:
4732                 {
4733                         struct sctp_add_streams *stradd;
4734                         uint8_t addstream = 0;
4735                         uint16_t add_o_strmcnt = 0;
4736                         uint16_t add_i_strmcnt = 0;
4737
4738                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4739                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4740                         if (stcb == NULL) {
4741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4742                                 error = ENOENT;
4743                                 break;
4744                         }
4745                         if (stcb->asoc.reconfig_supported == 0) {
4746                                 /*
4747                                  * Peer does not support the chunk type.
4748                                  */
4749                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4750                                 error = EOPNOTSUPP;
4751                                 SCTP_TCB_UNLOCK(stcb);
4752                                 break;
4753                         }
4754                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4755                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4756                                 error = EINVAL;
4757                                 SCTP_TCB_UNLOCK(stcb);
4758                                 break;
4759                         }
4760                         if (stcb->asoc.stream_reset_outstanding) {
4761                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4762                                 error = EALREADY;
4763                                 SCTP_TCB_UNLOCK(stcb);
4764                                 break;
4765                         }
4766                         if ((stradd->sas_outstrms == 0) &&
4767                             (stradd->sas_instrms == 0)) {
4768                                 error = EINVAL;
4769                                 goto skip_stuff;
4770                         }
4771                         if (stradd->sas_outstrms) {
4772                                 addstream = 1;
4773                                 /* We allocate here */
4774                                 add_o_strmcnt = stradd->sas_outstrms;
4775                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4776                                         /* You can't have more than 64k */
4777                                         error = EINVAL;
4778                                         goto skip_stuff;
4779                                 }
4780                         }
4781                         if (stradd->sas_instrms) {
4782                                 int cnt;
4783
4784                                 addstream |= 2;
4785                                 /*
4786                                  * We allocate inside
4787                                  * sctp_send_str_reset_req()
4788                                  */
4789                                 add_i_strmcnt = stradd->sas_instrms;
4790                                 cnt = add_i_strmcnt;
4791                                 cnt += stcb->asoc.streamincnt;
4792                                 if (cnt > 0x0000ffff) {
4793                                         /* You can't have more than 64k */
4794                                         error = EINVAL;
4795                                         goto skip_stuff;
4796                                 }
4797                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4798                                         /* More than you are allowed */
4799                                         error = EINVAL;
4800                                         goto skip_stuff;
4801                                 }
4802                         }
4803                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4804                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4805         skip_stuff:
4806                         SCTP_TCB_UNLOCK(stcb);
4807                         break;
4808                 }
4809         case SCTP_RESET_ASSOC:
4810                 {
4811                         int i;
4812                         uint32_t *value;
4813
4814                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4815                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4816                         if (stcb == NULL) {
4817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4818                                 error = ENOENT;
4819                                 break;
4820                         }
4821                         if (stcb->asoc.reconfig_supported == 0) {
4822                                 /*
4823                                  * Peer does not support the chunk type.
4824                                  */
4825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4826                                 error = EOPNOTSUPP;
4827                                 SCTP_TCB_UNLOCK(stcb);
4828                                 break;
4829                         }
4830                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4832                                 error = EINVAL;
4833                                 SCTP_TCB_UNLOCK(stcb);
4834                                 break;
4835                         }
4836                         if (stcb->asoc.stream_reset_outstanding) {
4837                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4838                                 error = EALREADY;
4839                                 SCTP_TCB_UNLOCK(stcb);
4840                                 break;
4841                         }
4842                         /*
4843                          * Is there any data pending in the send or sent
4844                          * queues?
4845                          */
4846                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4847                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4848                 busy_out:
4849                                 error = EBUSY;
4850                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4851                                 SCTP_TCB_UNLOCK(stcb);
4852                                 break;
4853                         }
4854                         /* Do any streams have data queued? */
4855                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4856                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4857                                         goto busy_out;
4858                                 }
4859                         }
4860                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4861                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4862                         SCTP_TCB_UNLOCK(stcb);
4863                         break;
4864                 }
4865         case SCTP_CONNECT_X:
4866                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4867                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4868                         error = EINVAL;
4869                         break;
4870                 }
4871                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4872                 break;
4873         case SCTP_CONNECT_X_DELAYED:
4874                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4875                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4876                         error = EINVAL;
4877                         break;
4878                 }
4879                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4880                 break;
4881         case SCTP_CONNECT_X_COMPLETE:
4882                 {
4883                         struct sockaddr *sa;
4884
4885                         /* FIXME MT: check correct? */
4886                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4887
4888                         /* find tcb */
4889                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4890                                 SCTP_INP_RLOCK(inp);
4891                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4892                                 if (stcb) {
4893                                         SCTP_TCB_LOCK(stcb);
4894                                 }
4895                                 SCTP_INP_RUNLOCK(inp);
4896                         } else {
4897                                 /*
4898                                  * We increment here since
4899                                  * sctp_findassociation_ep_addr() wil do a
4900                                  * decrement if it finds the stcb as long as
4901                                  * the locked tcb (last argument) is NOT a
4902                                  * TCB.. aka NULL.
4903                                  */
4904                                 SCTP_INP_INCR_REF(inp);
4905                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4906                                 if (stcb == NULL) {
4907                                         SCTP_INP_DECR_REF(inp);
4908                                 }
4909                         }
4910
4911                         if (stcb == NULL) {
4912                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4913                                 error = ENOENT;
4914                                 break;
4915                         }
4916                         if (stcb->asoc.delayed_connection == 1) {
4917                                 stcb->asoc.delayed_connection = 0;
4918                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4919                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4920                                     stcb->asoc.primary_destination,
4921                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4922                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4923                         } else {
4924                                 /*
4925                                  * already expired or did not use delayed
4926                                  * connectx
4927                                  */
4928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4929                                 error = EALREADY;
4930                         }
4931                         SCTP_TCB_UNLOCK(stcb);
4932                         break;
4933                 }
4934         case SCTP_MAX_BURST:
4935                 {
4936                         struct sctp_assoc_value *av;
4937
4938                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4939                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4940
4941                         if (stcb) {
4942                                 stcb->asoc.max_burst = av->assoc_value;
4943                                 SCTP_TCB_UNLOCK(stcb);
4944                         } else {
4945                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4946                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4947                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4948                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4949                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4950                                         SCTP_INP_WLOCK(inp);
4951                                         inp->sctp_ep.max_burst = av->assoc_value;
4952                                         SCTP_INP_WUNLOCK(inp);
4953                                 }
4954                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4955                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4956                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4957                                         SCTP_INP_RLOCK(inp);
4958                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4959                                                 SCTP_TCB_LOCK(stcb);
4960                                                 stcb->asoc.max_burst = av->assoc_value;
4961                                                 SCTP_TCB_UNLOCK(stcb);
4962                                         }
4963                                         SCTP_INP_RUNLOCK(inp);
4964                                 }
4965                         }
4966                         break;
4967                 }
4968         case SCTP_MAXSEG:
4969                 {
4970                         struct sctp_assoc_value *av;
4971
4972                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4973                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4974
4975                         if (stcb) {
4976                                 stcb->asoc.sctp_frag_point = av->assoc_value;
4977                                 SCTP_TCB_UNLOCK(stcb);
4978                         } else {
4979                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4980                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4981                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4982                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
4983                                         SCTP_INP_WLOCK(inp);
4984                                         inp->sctp_frag_point = av->assoc_value;
4985                                         SCTP_INP_WUNLOCK(inp);
4986                                 } else {
4987                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4988                                         error = EINVAL;
4989                                 }
4990                         }
4991                         break;
4992                 }
4993         case SCTP_EVENTS:
4994                 {
4995                         struct sctp_event_subscribe *events;
4996
4997                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4998
4999                         SCTP_INP_WLOCK(inp);
5000                         if (events->sctp_data_io_event) {
5001                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5002                         } else {
5003                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5004                         }
5005
5006                         if (events->sctp_association_event) {
5007                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5008                         } else {
5009                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5010                         }
5011
5012                         if (events->sctp_address_event) {
5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5014                         } else {
5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5016                         }
5017
5018                         if (events->sctp_send_failure_event) {
5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5020                         } else {
5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5022                         }
5023
5024                         if (events->sctp_peer_error_event) {
5025                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5026                         } else {
5027                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5028                         }
5029
5030                         if (events->sctp_shutdown_event) {
5031                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5032                         } else {
5033                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5034                         }
5035
5036                         if (events->sctp_partial_delivery_event) {
5037                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5038                         } else {
5039                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5040                         }
5041
5042                         if (events->sctp_adaptation_layer_event) {
5043                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5044                         } else {
5045                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5046                         }
5047
5048                         if (events->sctp_authentication_event) {
5049                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5050                         } else {
5051                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5052                         }
5053
5054                         if (events->sctp_sender_dry_event) {
5055                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5056                         } else {
5057                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5058                         }
5059
5060                         if (events->sctp_stream_reset_event) {
5061                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5062                         } else {
5063                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5064                         }
5065                         SCTP_INP_WUNLOCK(inp);
5066
5067                         SCTP_INP_RLOCK(inp);
5068                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5069                                 SCTP_TCB_LOCK(stcb);
5070                                 if (events->sctp_association_event) {
5071                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5072                                 } else {
5073                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5074                                 }
5075                                 if (events->sctp_address_event) {
5076                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5077                                 } else {
5078                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5079                                 }
5080                                 if (events->sctp_send_failure_event) {
5081                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5082                                 } else {
5083                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5084                                 }
5085                                 if (events->sctp_peer_error_event) {
5086                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5087                                 } else {
5088                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5089                                 }
5090                                 if (events->sctp_shutdown_event) {
5091                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5092                                 } else {
5093                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5094                                 }
5095                                 if (events->sctp_partial_delivery_event) {
5096                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5097                                 } else {
5098                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5099                                 }
5100                                 if (events->sctp_adaptation_layer_event) {
5101                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5102                                 } else {
5103                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5104                                 }
5105                                 if (events->sctp_authentication_event) {
5106                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5107                                 } else {
5108                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5109                                 }
5110                                 if (events->sctp_sender_dry_event) {
5111                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5112                                 } else {
5113                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5114                                 }
5115                                 if (events->sctp_stream_reset_event) {
5116                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5117                                 } else {
5118                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5119                                 }
5120                                 SCTP_TCB_UNLOCK(stcb);
5121                         }
5122                         /*
5123                          * Send up the sender dry event only for 1-to-1
5124                          * style sockets.
5125                          */
5126                         if (events->sctp_sender_dry_event) {
5127                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5128                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5129                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5130                                         if (stcb) {
5131                                                 SCTP_TCB_LOCK(stcb);
5132                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5133                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5134                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5135                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5136                                                 }
5137                                                 SCTP_TCB_UNLOCK(stcb);
5138                                         }
5139                                 }
5140                         }
5141                         SCTP_INP_RUNLOCK(inp);
5142                         break;
5143                 }
5144         case SCTP_ADAPTATION_LAYER:
5145                 {
5146                         struct sctp_setadaptation *adap_bits;
5147
5148                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5149                         SCTP_INP_WLOCK(inp);
5150                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5151                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5152                         SCTP_INP_WUNLOCK(inp);
5153                         break;
5154                 }
5155 #ifdef SCTP_DEBUG
5156         case SCTP_SET_INITIAL_DBG_SEQ:
5157                 {
5158                         uint32_t *vvv;
5159
5160                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5161                         SCTP_INP_WLOCK(inp);
5162                         inp->sctp_ep.initial_sequence_debug = *vvv;
5163                         SCTP_INP_WUNLOCK(inp);
5164                         break;
5165                 }
5166 #endif
5167         case SCTP_DEFAULT_SEND_PARAM:
5168                 {
5169                         struct sctp_sndrcvinfo *s_info;
5170
5171                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5172                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5173
5174                         if (stcb) {
5175                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5176                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5177                                 } else {
5178                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5179                                         error = EINVAL;
5180                                 }
5181                                 SCTP_TCB_UNLOCK(stcb);
5182                         } else {
5183                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5184                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5185                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5186                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5187                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5188                                         SCTP_INP_WLOCK(inp);
5189                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5190                                         SCTP_INP_WUNLOCK(inp);
5191                                 }
5192                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5193                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5194                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5195                                         SCTP_INP_RLOCK(inp);
5196                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5197                                                 SCTP_TCB_LOCK(stcb);
5198                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5199                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5200                                                 }
5201                                                 SCTP_TCB_UNLOCK(stcb);
5202                                         }
5203                                         SCTP_INP_RUNLOCK(inp);
5204                                 }
5205                         }
5206                         break;
5207                 }
5208         case SCTP_PEER_ADDR_PARAMS:
5209                 {
5210                         struct sctp_paddrparams *paddrp;
5211                         struct sctp_nets *net;
5212                         struct sockaddr *addr;
5213 #if defined(INET) && defined(INET6)
5214                         struct sockaddr_in sin_store;
5215 #endif
5216
5217                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5218                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5219
5220 #if defined(INET) && defined(INET6)
5221                         if (paddrp->spp_address.ss_family == AF_INET6) {
5222                                 struct sockaddr_in6 *sin6;
5223
5224                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5225                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5226                                         in6_sin6_2_sin(&sin_store, sin6);
5227                                         addr = (struct sockaddr *)&sin_store;
5228                                 } else {
5229                                         addr = (struct sockaddr *)&paddrp->spp_address;
5230                                 }
5231                         } else {
5232                                 addr = (struct sockaddr *)&paddrp->spp_address;
5233                         }
5234 #else
5235                         addr = (struct sockaddr *)&paddrp->spp_address;
5236 #endif
5237                         if (stcb != NULL) {
5238                                 net = sctp_findnet(stcb, addr);
5239                         } else {
5240                                 /*
5241                                  * We increment here since
5242                                  * sctp_findassociation_ep_addr() wil do a
5243                                  * decrement if it finds the stcb as long as
5244                                  * the locked tcb (last argument) is NOT a
5245                                  * TCB.. aka NULL.
5246                                  */
5247                                 net = NULL;
5248                                 SCTP_INP_INCR_REF(inp);
5249                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5250                                     &net, NULL, NULL);
5251                                 if (stcb == NULL) {
5252                                         SCTP_INP_DECR_REF(inp);
5253                                 }
5254                         }
5255                         if ((stcb != NULL) && (net == NULL)) {
5256 #ifdef INET
5257                                 if (addr->sa_family == AF_INET) {
5258                                         struct sockaddr_in *sin;
5259
5260                                         sin = (struct sockaddr_in *)addr;
5261                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5262                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5263                                                 SCTP_TCB_UNLOCK(stcb);
5264                                                 error = EINVAL;
5265                                                 break;
5266                                         }
5267                                 } else
5268 #endif
5269 #ifdef INET6
5270                                 if (addr->sa_family == AF_INET6) {
5271                                         struct sockaddr_in6 *sin6;
5272
5273                                         sin6 = (struct sockaddr_in6 *)addr;
5274                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5275                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5276                                                 SCTP_TCB_UNLOCK(stcb);
5277                                                 error = EINVAL;
5278                                                 break;
5279                                         }
5280                                 } else
5281 #endif
5282                                 {
5283                                         error = EAFNOSUPPORT;
5284                                         SCTP_TCB_UNLOCK(stcb);
5285                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5286                                         break;
5287                                 }
5288                         }
5289                         /* sanity checks */
5290                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5291                                 if (stcb)
5292                                         SCTP_TCB_UNLOCK(stcb);
5293                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5294                                 return (EINVAL);
5295                         }
5296
5297                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5298                                 if (stcb)
5299                                         SCTP_TCB_UNLOCK(stcb);
5300                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5301                                 return (EINVAL);
5302                         }
5303                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5304                             (paddrp->spp_pathmtu > 0) &&
5305                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5306                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5307                                 if (stcb)
5308                                         SCTP_TCB_UNLOCK(stcb);
5309                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5310                                 return (EINVAL);
5311                         }
5312
5313                         if (stcb != NULL) {
5314                                 /************************TCB SPECIFIC SET ******************/
5315                                 if (net != NULL) {
5316                                         /************************NET SPECIFIC SET ******************/
5317                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5318                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5319                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5320                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5321                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5322                                                 }
5323                                                 net->dest_state |= SCTP_ADDR_NOHB;
5324                                         }
5325                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5326                                                 if (paddrp->spp_hbinterval) {
5327                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5328                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5329                                                         net->heart_beat_delay = 0;
5330                                                 }
5331                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5332                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5333                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5334                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5335                                         }
5336                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5337                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5338                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5339                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5340                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5341                                                 }
5342                                         }
5343                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5344                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5345                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5346                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5347                                                 }
5348                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5349                                                 if (paddrp->spp_pathmtu > 0) {
5350                                                         net->mtu = paddrp->spp_pathmtu;
5351                                                         switch (net->ro._l_addr.sa.sa_family) {
5352 #ifdef INET
5353                                                         case AF_INET:
5354                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5355                                                                 break;
5356 #endif
5357 #ifdef INET6
5358                                                         case AF_INET6:
5359                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5360                                                                 break;
5361 #endif
5362                                                         default:
5363                                                                 break;
5364                                                         }
5365                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5366                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5367                                                         }
5368                                                 }
5369                                         }
5370                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5371                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5372                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5373                                                 }
5374                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5375                                         }
5376                                         if (paddrp->spp_pathmaxrxt > 0) {
5377                                                 if (net->dest_state & SCTP_ADDR_PF) {
5378                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5379                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5380                                                         }
5381                                                 } else {
5382                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5383                                                             (net->error_count > net->pf_threshold)) {
5384                                                                 net->dest_state |= SCTP_ADDR_PF;
5385                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5386                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5387                                                                     stcb->sctp_ep, stcb, net,
5388                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5389                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5390                                                         }
5391                                                 }
5392                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5393                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5394                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5395                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5396                                                         }
5397                                                 } else {
5398                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5399                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5400                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5401                                                         }
5402                                                 }
5403                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5404                                         }
5405                                         if (paddrp->spp_flags & SPP_DSCP) {
5406                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5407                                                 net->dscp |= 0x01;
5408                                         }
5409 #ifdef INET6
5410                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5411                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5412                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5413                                                         net->flowlabel |= 0x80000000;
5414                                                 }
5415                                         }
5416 #endif
5417                                 } else {
5418                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5419                                         if (paddrp->spp_pathmaxrxt > 0) {
5420                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5421                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5422                                                         if (net->dest_state & SCTP_ADDR_PF) {
5423                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5424                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5425                                                                 }
5426                                                         } else {
5427                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5428                                                                     (net->error_count > net->pf_threshold)) {
5429                                                                         net->dest_state |= SCTP_ADDR_PF;
5430                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5431                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5432                                                                             stcb->sctp_ep, stcb, net,
5433                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5434                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5435                                                                 }
5436                                                         }
5437                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5438                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5439                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5440                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5441                                                                 }
5442                                                         } else {
5443                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5444                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5445                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5446                                                                 }
5447                                                         }
5448                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5449                                                 }
5450                                         }
5451                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5452                                                 if (paddrp->spp_hbinterval != 0) {
5453                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5454                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5455                                                         stcb->asoc.heart_beat_delay = 0;
5456                                                 }
5457                                                 /* Turn back on the timer */
5458                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5459                                                         if (paddrp->spp_hbinterval != 0) {
5460                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5461                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5462                                                                 net->heart_beat_delay = 0;
5463                                                         }
5464                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5465                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5466                                                         }
5467                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5468                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5469                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5470                                                 }
5471                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5472                                         }
5473                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5474                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5475                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5476                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5477                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5478                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5479                                                                             inp, stcb, net,
5480                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5481                                                                 }
5482                                                         }
5483                                                 }
5484                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5485                                         }
5486                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5487                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5488                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5489                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5490                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5491                                                         }
5492                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5493                                                         if (paddrp->spp_pathmtu > 0) {
5494                                                                 net->mtu = paddrp->spp_pathmtu;
5495                                                                 switch (net->ro._l_addr.sa.sa_family) {
5496 #ifdef INET
5497                                                                 case AF_INET:
5498                                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5499                                                                         break;
5500 #endif
5501 #ifdef INET6
5502                                                                 case AF_INET6:
5503                                                                         net->mtu += SCTP_MIN_OVERHEAD;
5504                                                                         break;
5505 #endif
5506                                                                 default:
5507                                                                         break;
5508                                                                 }
5509                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5510                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5511                                                                 }
5512                                                         }
5513                                                 }
5514                                                 if (paddrp->spp_pathmtu > 0) {
5515                                                         stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5516                                                 }
5517                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5518                                         }
5519                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5520                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5521                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5522                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5523                                                         }
5524                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5525                                                 }
5526                                                 stcb->asoc.default_mtu = 0;
5527                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5528                                         }
5529                                         if (paddrp->spp_flags & SPP_DSCP) {
5530                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5531                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5532                                                         net->dscp |= 0x01;
5533                                                 }
5534                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5535                                                 stcb->asoc.default_dscp |= 0x01;
5536                                         }
5537 #ifdef INET6
5538                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5539                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5540                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5541                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5542                                                                 net->flowlabel |= 0x80000000;
5543                                                         }
5544                                                 }
5545                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5546                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5547                                         }
5548 #endif
5549                                 }
5550                                 SCTP_TCB_UNLOCK(stcb);
5551                         } else {
5552                                 /************************NO TCB, SET TO default stuff ******************/
5553                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5554                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5555                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5556                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5557                                         SCTP_INP_WLOCK(inp);
5558                                         /*
5559                                          * For the TOS/FLOWLABEL stuff you
5560                                          * set it with the options on the
5561                                          * socket
5562                                          */
5563                                         if (paddrp->spp_pathmaxrxt > 0) {
5564                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5565                                         }
5566
5567                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5568                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5569                                         else if (paddrp->spp_hbinterval != 0) {
5570                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5571                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5572                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5573                                         }
5574
5575                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5576                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5577                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5578                                                 } else if (paddrp->spp_hbinterval) {
5579                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5580                                                 }
5581                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5582                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5583                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5584                                         }
5585                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5586                                                 inp->sctp_ep.default_mtu = 0;
5587                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5588                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5589                                                 if (paddrp->spp_pathmtu > 0) {
5590                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5591                                                 }
5592                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5593                                         }
5594                                         if (paddrp->spp_flags & SPP_DSCP) {
5595                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5596                                                 inp->sctp_ep.default_dscp |= 0x01;
5597                                         }
5598 #ifdef INET6
5599                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5600                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5601                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5602                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5603                                                 }
5604                                         }
5605 #endif
5606                                         SCTP_INP_WUNLOCK(inp);
5607                                 } else {
5608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5609                                         error = EINVAL;
5610                                 }
5611                         }
5612                         break;
5613                 }
5614         case SCTP_RTOINFO:
5615                 {
5616                         struct sctp_rtoinfo *srto;
5617                         uint32_t new_init, new_min, new_max;
5618
5619                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5620                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5621
5622                         if (stcb) {
5623                                 if (srto->srto_initial)
5624                                         new_init = srto->srto_initial;
5625                                 else
5626                                         new_init = stcb->asoc.initial_rto;
5627                                 if (srto->srto_max)
5628                                         new_max = srto->srto_max;
5629                                 else
5630                                         new_max = stcb->asoc.maxrto;
5631                                 if (srto->srto_min)
5632                                         new_min = srto->srto_min;
5633                                 else
5634                                         new_min = stcb->asoc.minrto;
5635                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5636                                         stcb->asoc.initial_rto = new_init;
5637                                         stcb->asoc.maxrto = new_max;
5638                                         stcb->asoc.minrto = new_min;
5639                                 } else {
5640                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5641                                         error = EINVAL;
5642                                 }
5643                                 SCTP_TCB_UNLOCK(stcb);
5644                         } else {
5645                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5646                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5647                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5648                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5649                                         SCTP_INP_WLOCK(inp);
5650                                         if (srto->srto_initial)
5651                                                 new_init = srto->srto_initial;
5652                                         else
5653                                                 new_init = inp->sctp_ep.initial_rto;
5654                                         if (srto->srto_max)
5655                                                 new_max = srto->srto_max;
5656                                         else
5657                                                 new_max = inp->sctp_ep.sctp_maxrto;
5658                                         if (srto->srto_min)
5659                                                 new_min = srto->srto_min;
5660                                         else
5661                                                 new_min = inp->sctp_ep.sctp_minrto;
5662                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5663                                                 inp->sctp_ep.initial_rto = new_init;
5664                                                 inp->sctp_ep.sctp_maxrto = new_max;
5665                                                 inp->sctp_ep.sctp_minrto = new_min;
5666                                         } else {
5667                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5668                                                 error = EINVAL;
5669                                         }
5670                                         SCTP_INP_WUNLOCK(inp);
5671                                 } else {
5672                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5673                                         error = EINVAL;
5674                                 }
5675                         }
5676                         break;
5677                 }
5678         case SCTP_ASSOCINFO:
5679                 {
5680                         struct sctp_assocparams *sasoc;
5681
5682                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5683                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5684                         if (sasoc->sasoc_cookie_life > 0) {
5685                                 /* boundary check the cookie life */
5686                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5687                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5688                                 }
5689                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5690                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5691                                 }
5692                         }
5693                         if (stcb) {
5694                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5695                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5696                                 }
5697                                 if (sasoc->sasoc_cookie_life > 0) {
5698                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5699                                 }
5700                                 SCTP_TCB_UNLOCK(stcb);
5701                         } else {
5702                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5703                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5704                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5705                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5706                                         SCTP_INP_WLOCK(inp);
5707                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5708                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5709                                         }
5710                                         if (sasoc->sasoc_cookie_life > 0) {
5711                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5712                                         }
5713                                         SCTP_INP_WUNLOCK(inp);
5714                                 } else {
5715                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5716                                         error = EINVAL;
5717                                 }
5718                         }
5719                         break;
5720                 }
5721         case SCTP_INITMSG:
5722                 {
5723                         struct sctp_initmsg *sinit;
5724
5725                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5726                         SCTP_INP_WLOCK(inp);
5727                         if (sinit->sinit_num_ostreams)
5728                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5729
5730                         if (sinit->sinit_max_instreams)
5731                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5732
5733                         if (sinit->sinit_max_attempts)
5734                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5735
5736                         if (sinit->sinit_max_init_timeo)
5737                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5738                         SCTP_INP_WUNLOCK(inp);
5739                         break;
5740                 }
5741         case SCTP_PRIMARY_ADDR:
5742                 {
5743                         struct sctp_setprim *spa;
5744                         struct sctp_nets *net;
5745                         struct sockaddr *addr;
5746 #if defined(INET) && defined(INET6)
5747                         struct sockaddr_in sin_store;
5748 #endif
5749
5750                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5751                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5752
5753 #if defined(INET) && defined(INET6)
5754                         if (spa->ssp_addr.ss_family == AF_INET6) {
5755                                 struct sockaddr_in6 *sin6;
5756
5757                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5758                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5759                                         in6_sin6_2_sin(&sin_store, sin6);
5760                                         addr = (struct sockaddr *)&sin_store;
5761                                 } else {
5762                                         addr = (struct sockaddr *)&spa->ssp_addr;
5763                                 }
5764                         } else {
5765                                 addr = (struct sockaddr *)&spa->ssp_addr;
5766                         }
5767 #else
5768                         addr = (struct sockaddr *)&spa->ssp_addr;
5769 #endif
5770                         if (stcb != NULL) {
5771                                 net = sctp_findnet(stcb, addr);
5772                         } else {
5773                                 /*
5774                                  * We increment here since
5775                                  * sctp_findassociation_ep_addr() wil do a
5776                                  * decrement if it finds the stcb as long as
5777                                  * the locked tcb (last argument) is NOT a
5778                                  * TCB.. aka NULL.
5779                                  */
5780                                 net = NULL;
5781                                 SCTP_INP_INCR_REF(inp);
5782                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5783                                     &net, NULL, NULL);
5784                                 if (stcb == NULL) {
5785                                         SCTP_INP_DECR_REF(inp);
5786                                 }
5787                         }
5788
5789                         if ((stcb != NULL) && (net != NULL)) {
5790                                 if (net != stcb->asoc.primary_destination) {
5791                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5792                                                 /* Ok we need to set it */
5793                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5794                                                         if ((stcb->asoc.alternate) &&
5795                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5796                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5797                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5798                                                                 stcb->asoc.alternate = NULL;
5799                                                         }
5800                                                 } else {
5801                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5802                                                         error = EINVAL;
5803                                                 }
5804                                         } else {
5805                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5806                                                 error = EINVAL;
5807                                         }
5808                                 }
5809                         } else {
5810                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5811                                 error = EINVAL;
5812                         }
5813                         if (stcb != NULL) {
5814                                 SCTP_TCB_UNLOCK(stcb);
5815                         }
5816                         break;
5817                 }
5818         case SCTP_SET_DYNAMIC_PRIMARY:
5819                 {
5820                         union sctp_sockstore *ss;
5821
5822                         error = priv_check(curthread,
5823                             PRIV_NETINET_RESERVEDPORT);
5824                         if (error)
5825                                 break;
5826
5827                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5828                         /* SUPER USER CHECK? */
5829                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5830                         break;
5831                 }
5832         case SCTP_SET_PEER_PRIMARY_ADDR:
5833                 {
5834                         struct sctp_setpeerprim *sspp;
5835                         struct sockaddr *addr;
5836 #if defined(INET) && defined(INET6)
5837                         struct sockaddr_in sin_store;
5838 #endif
5839
5840                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5841                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5842                         if (stcb != NULL) {
5843                                 struct sctp_ifa *ifa;
5844
5845 #if defined(INET) && defined(INET6)
5846                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5847                                         struct sockaddr_in6 *sin6;
5848
5849                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5850                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5851                                                 in6_sin6_2_sin(&sin_store, sin6);
5852                                                 addr = (struct sockaddr *)&sin_store;
5853                                         } else {
5854                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5855                                         }
5856                                 } else {
5857                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5858                                 }
5859 #else
5860                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5861 #endif
5862                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5863                                 if (ifa == NULL) {
5864                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5865                                         error = EINVAL;
5866                                         goto out_of_it;
5867                                 }
5868                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5869                                         /*
5870                                          * Must validate the ifa found is in
5871                                          * our ep
5872                                          */
5873                                         struct sctp_laddr *laddr;
5874                                         int found = 0;
5875
5876                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5877                                                 if (laddr->ifa == NULL) {
5878                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5879                                                             __func__);
5880                                                         continue;
5881                                                 }
5882                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5883                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5884                                                         continue;
5885                                                 }
5886                                                 if (laddr->ifa == ifa) {
5887                                                         found = 1;
5888                                                         break;
5889                                                 }
5890                                         }
5891                                         if (!found) {
5892                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5893                                                 error = EINVAL;
5894                                                 goto out_of_it;
5895                                         }
5896                                 } else {
5897                                         switch (addr->sa_family) {
5898 #ifdef INET
5899                                         case AF_INET:
5900                                                 {
5901                                                         struct sockaddr_in *sin;
5902
5903                                                         sin = (struct sockaddr_in *)addr;
5904                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5905                                                             &sin->sin_addr) != 0) {
5906                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5907                                                                 error = EINVAL;
5908                                                                 goto out_of_it;
5909                                                         }
5910                                                         break;
5911                                                 }
5912 #endif
5913 #ifdef INET6
5914                                         case AF_INET6:
5915                                                 {
5916                                                         struct sockaddr_in6 *sin6;
5917
5918                                                         sin6 = (struct sockaddr_in6 *)addr;
5919                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5920                                                             &sin6->sin6_addr) != 0) {
5921                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5922                                                                 error = EINVAL;
5923                                                                 goto out_of_it;
5924                                                         }
5925                                                         break;
5926                                                 }
5927 #endif
5928                                         default:
5929                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5930                                                 error = EINVAL;
5931                                                 goto out_of_it;
5932                                         }
5933                                 }
5934                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5935                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5936                                         error = EINVAL;
5937                                 }
5938                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5939                 out_of_it:
5940                                 SCTP_TCB_UNLOCK(stcb);
5941                         } else {
5942                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5943                                 error = EINVAL;
5944                         }
5945                         break;
5946                 }
5947         case SCTP_BINDX_ADD_ADDR:
5948                 {
5949                         struct sockaddr *sa;
5950                         struct thread *td;
5951
5952                         td = (struct thread *)p;
5953                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5954 #ifdef INET
5955                         if (sa->sa_family == AF_INET) {
5956                                 if (optsize < sizeof(struct sockaddr_in)) {
5957                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5958                                         error = EINVAL;
5959                                         break;
5960                                 }
5961                                 if (td != NULL &&
5962                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5963                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5964                                         break;
5965                                 }
5966                         } else
5967 #endif
5968 #ifdef INET6
5969                         if (sa->sa_family == AF_INET6) {
5970                                 if (optsize < sizeof(struct sockaddr_in6)) {
5971                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5972                                         error = EINVAL;
5973                                         break;
5974                                 }
5975                                 if (td != NULL &&
5976                                     (error = prison_local_ip6(td->td_ucred,
5977                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5978                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5979                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5980                                         break;
5981                                 }
5982                         } else
5983 #endif
5984                         {
5985                                 error = EAFNOSUPPORT;
5986                                 break;
5987                         }
5988                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
5989                         break;
5990                 }
5991         case SCTP_BINDX_REM_ADDR:
5992                 {
5993                         struct sockaddr *sa;
5994                         struct thread *td;
5995
5996                         td = (struct thread *)p;
5997
5998                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5999 #ifdef INET
6000                         if (sa->sa_family == AF_INET) {
6001                                 if (optsize < sizeof(struct sockaddr_in)) {
6002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6003                                         error = EINVAL;
6004                                         break;
6005                                 }
6006                                 if (td != NULL &&
6007                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6008                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6009                                         break;
6010                                 }
6011                         } else
6012 #endif
6013 #ifdef INET6
6014                         if (sa->sa_family == AF_INET6) {
6015                                 if (optsize < sizeof(struct sockaddr_in6)) {
6016                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6017                                         error = EINVAL;
6018                                         break;
6019                                 }
6020                                 if (td != NULL &&
6021                                     (error = prison_local_ip6(td->td_ucred,
6022                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6023                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6024                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6025                                         break;
6026                                 }
6027                         } else
6028 #endif
6029                         {
6030                                 error = EAFNOSUPPORT;
6031                                 break;
6032                         }
6033                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6034                         break;
6035                 }
6036         case SCTP_EVENT:
6037                 {
6038                         struct sctp_event *event;
6039                         uint32_t event_type;
6040
6041                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6042                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6043                         switch (event->se_type) {
6044                         case SCTP_ASSOC_CHANGE:
6045                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6046                                 break;
6047                         case SCTP_PEER_ADDR_CHANGE:
6048                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6049                                 break;
6050                         case SCTP_REMOTE_ERROR:
6051                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6052                                 break;
6053                         case SCTP_SEND_FAILED:
6054                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6055                                 break;
6056                         case SCTP_SHUTDOWN_EVENT:
6057                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6058                                 break;
6059                         case SCTP_ADAPTATION_INDICATION:
6060                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6061                                 break;
6062                         case SCTP_PARTIAL_DELIVERY_EVENT:
6063                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6064                                 break;
6065                         case SCTP_AUTHENTICATION_EVENT:
6066                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6067                                 break;
6068                         case SCTP_STREAM_RESET_EVENT:
6069                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6070                                 break;
6071                         case SCTP_SENDER_DRY_EVENT:
6072                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6073                                 break;
6074                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6075                                 event_type = 0;
6076                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6077                                 error = ENOTSUP;
6078                                 break;
6079                         case SCTP_ASSOC_RESET_EVENT:
6080                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6081                                 break;
6082                         case SCTP_STREAM_CHANGE_EVENT:
6083                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6084                                 break;
6085                         case SCTP_SEND_FAILED_EVENT:
6086                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6087                                 break;
6088                         default:
6089                                 event_type = 0;
6090                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6091                                 error = EINVAL;
6092                                 break;
6093                         }
6094                         if (event_type > 0) {
6095                                 if (stcb) {
6096                                         if (event->se_on) {
6097                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6098                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6099                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6100                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6101                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6102                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6103                                                         }
6104                                                 }
6105                                         } else {
6106                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6107                                         }
6108                                         SCTP_TCB_UNLOCK(stcb);
6109                                 } else {
6110                                         /*
6111                                          * We don't want to send up a storm
6112                                          * of events, so return an error for
6113                                          * sender dry events
6114                                          */
6115                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6116                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6117                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6118                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6119                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6120                                                 error = ENOTSUP;
6121                                                 break;
6122                                         }
6123                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6124                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6125                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6126                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6127                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6128                                                 SCTP_INP_WLOCK(inp);
6129                                                 if (event->se_on) {
6130                                                         sctp_feature_on(inp, event_type);
6131                                                 } else {
6132                                                         sctp_feature_off(inp, event_type);
6133                                                 }
6134                                                 SCTP_INP_WUNLOCK(inp);
6135                                         }
6136                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6137                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6138                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6139                                                 SCTP_INP_RLOCK(inp);
6140                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6141                                                         SCTP_TCB_LOCK(stcb);
6142                                                         if (event->se_on) {
6143                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6144                                                         } else {
6145                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6146                                                         }
6147                                                         SCTP_TCB_UNLOCK(stcb);
6148                                                 }
6149                                                 SCTP_INP_RUNLOCK(inp);
6150                                         }
6151                                 }
6152                         } else {
6153                                 if (stcb) {
6154                                         SCTP_TCB_UNLOCK(stcb);
6155                                 }
6156                         }
6157                         break;
6158                 }
6159         case SCTP_RECVRCVINFO:
6160                 {
6161                         int *onoff;
6162
6163                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6164                         SCTP_INP_WLOCK(inp);
6165                         if (*onoff != 0) {
6166                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6167                         } else {
6168                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6169                         }
6170                         SCTP_INP_WUNLOCK(inp);
6171                         break;
6172                 }
6173         case SCTP_RECVNXTINFO:
6174                 {
6175                         int *onoff;
6176
6177                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6178                         SCTP_INP_WLOCK(inp);
6179                         if (*onoff != 0) {
6180                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6181                         } else {
6182                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6183                         }
6184                         SCTP_INP_WUNLOCK(inp);
6185                         break;
6186                 }
6187         case SCTP_DEFAULT_SNDINFO:
6188                 {
6189                         struct sctp_sndinfo *info;
6190                         uint16_t policy;
6191
6192                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6193                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6194
6195                         if (stcb) {
6196                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6197                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6198                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6199                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6200                                         stcb->asoc.def_send.sinfo_flags |= policy;
6201                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6202                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6203                                 } else {
6204                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6205                                         error = EINVAL;
6206                                 }
6207                                 SCTP_TCB_UNLOCK(stcb);
6208                         } else {
6209                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6210                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6211                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6212                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6213                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6214                                         SCTP_INP_WLOCK(inp);
6215                                         inp->def_send.sinfo_stream = info->snd_sid;
6216                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6217                                         inp->def_send.sinfo_flags = info->snd_flags;
6218                                         inp->def_send.sinfo_flags |= policy;
6219                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6220                                         inp->def_send.sinfo_context = info->snd_context;
6221                                         SCTP_INP_WUNLOCK(inp);
6222                                 }
6223                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6224                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6225                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6226                                         SCTP_INP_RLOCK(inp);
6227                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6228                                                 SCTP_TCB_LOCK(stcb);
6229                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6230                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6231                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6232                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6233                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6234                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6235                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6236                                                 }
6237                                                 SCTP_TCB_UNLOCK(stcb);
6238                                         }
6239                                         SCTP_INP_RUNLOCK(inp);
6240                                 }
6241                         }
6242                         break;
6243                 }
6244         case SCTP_DEFAULT_PRINFO:
6245                 {
6246                         struct sctp_default_prinfo *info;
6247
6248                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6249                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6250
6251                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6252                                 if (stcb) {
6253                                         SCTP_TCB_UNLOCK(stcb);
6254                                 }
6255                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6256                                 error = EINVAL;
6257                                 break;
6258                         }
6259                         if (stcb) {
6260                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6261                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6262                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6263                                 SCTP_TCB_UNLOCK(stcb);
6264                         } else {
6265                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6266                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6267                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6268                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6269                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6270                                         SCTP_INP_WLOCK(inp);
6271                                         inp->def_send.sinfo_flags &= 0xfff0;
6272                                         inp->def_send.sinfo_flags |= info->pr_policy;
6273                                         inp->def_send.sinfo_timetolive = info->pr_value;
6274                                         SCTP_INP_WUNLOCK(inp);
6275                                 }
6276                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6277                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6278                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6279                                         SCTP_INP_RLOCK(inp);
6280                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6281                                                 SCTP_TCB_LOCK(stcb);
6282                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6283                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6284                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6285                                                 SCTP_TCB_UNLOCK(stcb);
6286                                         }
6287                                         SCTP_INP_RUNLOCK(inp);
6288                                 }
6289                         }
6290                         break;
6291                 }
6292         case SCTP_PEER_ADDR_THLDS:
6293                 /* Applies to the specific association */
6294                 {
6295                         struct sctp_paddrthlds *thlds;
6296                         struct sctp_nets *net;
6297                         struct sockaddr *addr;
6298 #if defined(INET) && defined(INET6)
6299                         struct sockaddr_in sin_store;
6300 #endif
6301
6302                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6303                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6304
6305 #if defined(INET) && defined(INET6)
6306                         if (thlds->spt_address.ss_family == AF_INET6) {
6307                                 struct sockaddr_in6 *sin6;
6308
6309                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6310                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6311                                         in6_sin6_2_sin(&sin_store, sin6);
6312                                         addr = (struct sockaddr *)&sin_store;
6313                                 } else {
6314                                         addr = (struct sockaddr *)&thlds->spt_address;
6315                                 }
6316                         } else {
6317                                 addr = (struct sockaddr *)&thlds->spt_address;
6318                         }
6319 #else
6320                         addr = (struct sockaddr *)&thlds->spt_address;
6321 #endif
6322                         if (stcb != NULL) {
6323                                 net = sctp_findnet(stcb, addr);
6324                         } else {
6325                                 /*
6326                                  * We increment here since
6327                                  * sctp_findassociation_ep_addr() wil do a
6328                                  * decrement if it finds the stcb as long as
6329                                  * the locked tcb (last argument) is NOT a
6330                                  * TCB.. aka NULL.
6331                                  */
6332                                 net = NULL;
6333                                 SCTP_INP_INCR_REF(inp);
6334                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6335                                     &net, NULL, NULL);
6336                                 if (stcb == NULL) {
6337                                         SCTP_INP_DECR_REF(inp);
6338                                 }
6339                         }
6340                         if ((stcb != NULL) && (net == NULL)) {
6341 #ifdef INET
6342                                 if (addr->sa_family == AF_INET) {
6343                                         struct sockaddr_in *sin;
6344
6345                                         sin = (struct sockaddr_in *)addr;
6346                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6347                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6348                                                 SCTP_TCB_UNLOCK(stcb);
6349                                                 error = EINVAL;
6350                                                 break;
6351                                         }
6352                                 } else
6353 #endif
6354 #ifdef INET6
6355                                 if (addr->sa_family == AF_INET6) {
6356                                         struct sockaddr_in6 *sin6;
6357
6358                                         sin6 = (struct sockaddr_in6 *)addr;
6359                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6360                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6361                                                 SCTP_TCB_UNLOCK(stcb);
6362                                                 error = EINVAL;
6363                                                 break;
6364                                         }
6365                                 } else
6366 #endif
6367                                 {
6368                                         error = EAFNOSUPPORT;
6369                                         SCTP_TCB_UNLOCK(stcb);
6370                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6371                                         break;
6372                                 }
6373                         }
6374                         if (thlds->spt_pathcpthld != 0xffff) {
6375                                 if (stcb != NULL) {
6376                                         SCTP_TCB_UNLOCK(stcb);
6377                                 }
6378                                 error = EINVAL;
6379                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6380                                 break;
6381                         }
6382                         if (stcb != NULL) {
6383                                 if (net != NULL) {
6384                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6385                                         net->pf_threshold = thlds->spt_pathpfthld;
6386                                         if (net->dest_state & SCTP_ADDR_PF) {
6387                                                 if ((net->error_count > net->failure_threshold) ||
6388                                                     (net->error_count <= net->pf_threshold)) {
6389                                                         net->dest_state &= ~SCTP_ADDR_PF;
6390                                                 }
6391                                         } else {
6392                                                 if ((net->error_count > net->pf_threshold) &&
6393                                                     (net->error_count <= net->failure_threshold)) {
6394                                                         net->dest_state |= SCTP_ADDR_PF;
6395                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6396                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6397                                                             stcb->sctp_ep, stcb, net,
6398                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6399                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6400                                                 }
6401                                         }
6402                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6403                                                 if (net->error_count > net->failure_threshold) {
6404                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6405                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6406                                                 }
6407                                         } else {
6408                                                 if (net->error_count <= net->failure_threshold) {
6409                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6410                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6411                                                 }
6412                                         }
6413                                 } else {
6414                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6415                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6416                                                 net->pf_threshold = thlds->spt_pathpfthld;
6417                                                 if (net->dest_state & SCTP_ADDR_PF) {
6418                                                         if ((net->error_count > net->failure_threshold) ||
6419                                                             (net->error_count <= net->pf_threshold)) {
6420                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6421                                                         }
6422                                                 } else {
6423                                                         if ((net->error_count > net->pf_threshold) &&
6424                                                             (net->error_count <= net->failure_threshold)) {
6425                                                                 net->dest_state |= SCTP_ADDR_PF;
6426                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6427                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6428                                                                     stcb->sctp_ep, stcb, net,
6429                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6430                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6431                                                         }
6432                                                 }
6433                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6434                                                         if (net->error_count > net->failure_threshold) {
6435                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6436                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6437                                                         }
6438                                                 } else {
6439                                                         if (net->error_count <= net->failure_threshold) {
6440                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6441                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6442                                                         }
6443                                                 }
6444                                         }
6445                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6446                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6447                                 }
6448                                 SCTP_TCB_UNLOCK(stcb);
6449                         } else {
6450                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6451                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6452                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6453                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6454                                         SCTP_INP_WLOCK(inp);
6455                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6456                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6457                                         SCTP_INP_WUNLOCK(inp);
6458                                 } else {
6459                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6460                                         error = EINVAL;
6461                                 }
6462                         }
6463                         break;
6464                 }
6465         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6466                 {
6467                         struct sctp_udpencaps *encaps;
6468                         struct sctp_nets *net;
6469                         struct sockaddr *addr;
6470 #if defined(INET) && defined(INET6)
6471                         struct sockaddr_in sin_store;
6472 #endif
6473
6474                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6475                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6476
6477 #if defined(INET) && defined(INET6)
6478                         if (encaps->sue_address.ss_family == AF_INET6) {
6479                                 struct sockaddr_in6 *sin6;
6480
6481                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6482                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6483                                         in6_sin6_2_sin(&sin_store, sin6);
6484                                         addr = (struct sockaddr *)&sin_store;
6485                                 } else {
6486                                         addr = (struct sockaddr *)&encaps->sue_address;
6487                                 }
6488                         } else {
6489                                 addr = (struct sockaddr *)&encaps->sue_address;
6490                         }
6491 #else
6492                         addr = (struct sockaddr *)&encaps->sue_address;
6493 #endif
6494                         if (stcb != NULL) {
6495                                 net = sctp_findnet(stcb, addr);
6496                         } else {
6497                                 /*
6498                                  * We increment here since
6499                                  * sctp_findassociation_ep_addr() wil do a
6500                                  * decrement if it finds the stcb as long as
6501                                  * the locked tcb (last argument) is NOT a
6502                                  * TCB.. aka NULL.
6503                                  */
6504                                 net = NULL;
6505                                 SCTP_INP_INCR_REF(inp);
6506                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6507                                 if (stcb == NULL) {
6508                                         SCTP_INP_DECR_REF(inp);
6509                                 }
6510                         }
6511                         if ((stcb != NULL) && (net == NULL)) {
6512 #ifdef INET
6513                                 if (addr->sa_family == AF_INET) {
6514                                         struct sockaddr_in *sin;
6515
6516                                         sin = (struct sockaddr_in *)addr;
6517                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6518                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6519                                                 SCTP_TCB_UNLOCK(stcb);
6520                                                 error = EINVAL;
6521                                                 break;
6522                                         }
6523                                 } else
6524 #endif
6525 #ifdef INET6
6526                                 if (addr->sa_family == AF_INET6) {
6527                                         struct sockaddr_in6 *sin6;
6528
6529                                         sin6 = (struct sockaddr_in6 *)addr;
6530                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6531                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6532                                                 SCTP_TCB_UNLOCK(stcb);
6533                                                 error = EINVAL;
6534                                                 break;
6535                                         }
6536                                 } else
6537 #endif
6538                                 {
6539                                         error = EAFNOSUPPORT;
6540                                         SCTP_TCB_UNLOCK(stcb);
6541                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6542                                         break;
6543                                 }
6544                         }
6545
6546                         if (stcb != NULL) {
6547                                 if (net != NULL) {
6548                                         net->port = encaps->sue_port;
6549                                 } else {
6550                                         stcb->asoc.port = encaps->sue_port;
6551                                 }
6552                                 SCTP_TCB_UNLOCK(stcb);
6553                         } else {
6554                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6555                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6556                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6557                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6558                                         SCTP_INP_WLOCK(inp);
6559                                         inp->sctp_ep.port = encaps->sue_port;
6560                                         SCTP_INP_WUNLOCK(inp);
6561                                 } else {
6562                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6563                                         error = EINVAL;
6564                                 }
6565                         }
6566                         break;
6567                 }
6568         case SCTP_ECN_SUPPORTED:
6569                 {
6570                         struct sctp_assoc_value *av;
6571
6572                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6573                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6574
6575                         if (stcb) {
6576                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6577                                 error = EINVAL;
6578                                 SCTP_TCB_UNLOCK(stcb);
6579                         } else {
6580                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6581                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6582                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6583                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6584                                         SCTP_INP_WLOCK(inp);
6585                                         if (av->assoc_value == 0) {
6586                                                 inp->ecn_supported = 0;
6587                                         } else {
6588                                                 inp->ecn_supported = 1;
6589                                         }
6590                                         SCTP_INP_WUNLOCK(inp);
6591                                 } else {
6592                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6593                                         error = EINVAL;
6594                                 }
6595                         }
6596                         break;
6597                 }
6598         case SCTP_PR_SUPPORTED:
6599                 {
6600                         struct sctp_assoc_value *av;
6601
6602                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6603                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6604
6605                         if (stcb) {
6606                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6607                                 error = EINVAL;
6608                                 SCTP_TCB_UNLOCK(stcb);
6609                         } else {
6610                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6611                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6612                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6613                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6614                                         SCTP_INP_WLOCK(inp);
6615                                         if (av->assoc_value == 0) {
6616                                                 inp->prsctp_supported = 0;
6617                                         } else {
6618                                                 inp->prsctp_supported = 1;
6619                                         }
6620                                         SCTP_INP_WUNLOCK(inp);
6621                                 } else {
6622                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6623                                         error = EINVAL;
6624                                 }
6625                         }
6626                         break;
6627                 }
6628         case SCTP_AUTH_SUPPORTED:
6629                 {
6630                         struct sctp_assoc_value *av;
6631
6632                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6633                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6634
6635                         if (stcb) {
6636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6637                                 error = EINVAL;
6638                                 SCTP_TCB_UNLOCK(stcb);
6639                         } else {
6640                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6641                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6642                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6643                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6644                                         if ((av->assoc_value == 0) &&
6645                                             (inp->asconf_supported == 1)) {
6646                                                 /*
6647                                                  * AUTH is required for
6648                                                  * ASCONF
6649                                                  */
6650                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6651                                                 error = EINVAL;
6652                                         } else {
6653                                                 SCTP_INP_WLOCK(inp);
6654                                                 if (av->assoc_value == 0) {
6655                                                         inp->auth_supported = 0;
6656                                                 } else {
6657                                                         inp->auth_supported = 1;
6658                                                 }
6659                                                 SCTP_INP_WUNLOCK(inp);
6660                                         }
6661                                 } else {
6662                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6663                                         error = EINVAL;
6664                                 }
6665                         }
6666                         break;
6667                 }
6668         case SCTP_ASCONF_SUPPORTED:
6669                 {
6670                         struct sctp_assoc_value *av;
6671
6672                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6673                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6674
6675                         if (stcb) {
6676                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6677                                 error = EINVAL;
6678                                 SCTP_TCB_UNLOCK(stcb);
6679                         } else {
6680                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6681                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6682                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6683                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6684                                         if ((av->assoc_value != 0) &&
6685                                             (inp->auth_supported == 0)) {
6686                                                 /*
6687                                                  * AUTH is required for
6688                                                  * ASCONF
6689                                                  */
6690                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6691                                                 error = EINVAL;
6692                                         } else {
6693                                                 SCTP_INP_WLOCK(inp);
6694                                                 if (av->assoc_value == 0) {
6695                                                         inp->asconf_supported = 0;
6696                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6697                                                             inp->sctp_ep.local_auth_chunks);
6698                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6699                                                             inp->sctp_ep.local_auth_chunks);
6700                                                 } else {
6701                                                         inp->asconf_supported = 1;
6702                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6703                                                             inp->sctp_ep.local_auth_chunks);
6704                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6705                                                             inp->sctp_ep.local_auth_chunks);
6706                                                 }
6707                                                 SCTP_INP_WUNLOCK(inp);
6708                                         }
6709                                 } else {
6710                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6711                                         error = EINVAL;
6712                                 }
6713                         }
6714                         break;
6715                 }
6716         case SCTP_RECONFIG_SUPPORTED:
6717                 {
6718                         struct sctp_assoc_value *av;
6719
6720                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6721                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6722
6723                         if (stcb) {
6724                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6725                                 error = EINVAL;
6726                                 SCTP_TCB_UNLOCK(stcb);
6727                         } else {
6728                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6729                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6730                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6731                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6732                                         SCTP_INP_WLOCK(inp);
6733                                         if (av->assoc_value == 0) {
6734                                                 inp->reconfig_supported = 0;
6735                                         } else {
6736                                                 inp->reconfig_supported = 1;
6737                                         }
6738                                         SCTP_INP_WUNLOCK(inp);
6739                                 } else {
6740                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6741                                         error = EINVAL;
6742                                 }
6743                         }
6744                         break;
6745                 }
6746         case SCTP_NRSACK_SUPPORTED:
6747                 {
6748                         struct sctp_assoc_value *av;
6749
6750                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6751                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6752
6753                         if (stcb) {
6754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6755                                 error = EINVAL;
6756                                 SCTP_TCB_UNLOCK(stcb);
6757                         } else {
6758                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6759                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6760                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6761                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6762                                         SCTP_INP_WLOCK(inp);
6763                                         if (av->assoc_value == 0) {
6764                                                 inp->nrsack_supported = 0;
6765                                         } else {
6766                                                 inp->nrsack_supported = 1;
6767                                         }
6768                                         SCTP_INP_WUNLOCK(inp);
6769                                 } else {
6770                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6771                                         error = EINVAL;
6772                                 }
6773                         }
6774                         break;
6775                 }
6776         case SCTP_PKTDROP_SUPPORTED:
6777                 {
6778                         struct sctp_assoc_value *av;
6779
6780                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6781                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6782
6783                         if (stcb) {
6784                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6785                                 error = EINVAL;
6786                                 SCTP_TCB_UNLOCK(stcb);
6787                         } else {
6788                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6789                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6790                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6791                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6792                                         SCTP_INP_WLOCK(inp);
6793                                         if (av->assoc_value == 0) {
6794                                                 inp->pktdrop_supported = 0;
6795                                         } else {
6796                                                 inp->pktdrop_supported = 1;
6797                                         }
6798                                         SCTP_INP_WUNLOCK(inp);
6799                                 } else {
6800                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6801                                         error = EINVAL;
6802                                 }
6803                         }
6804                         break;
6805                 }
6806         case SCTP_MAX_CWND:
6807                 {
6808                         struct sctp_assoc_value *av;
6809                         struct sctp_nets *net;
6810
6811                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6812                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6813
6814                         if (stcb) {
6815                                 stcb->asoc.max_cwnd = av->assoc_value;
6816                                 if (stcb->asoc.max_cwnd > 0) {
6817                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6818                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6819                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6820                                                         net->cwnd = stcb->asoc.max_cwnd;
6821                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6822                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6823                                                         }
6824                                                 }
6825                                         }
6826                                 }
6827                                 SCTP_TCB_UNLOCK(stcb);
6828                         } else {
6829                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6830                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6831                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6832                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6833                                         SCTP_INP_WLOCK(inp);
6834                                         inp->max_cwnd = av->assoc_value;
6835                                         SCTP_INP_WUNLOCK(inp);
6836                                 } else {
6837                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6838                                         error = EINVAL;
6839                                 }
6840                         }
6841                         break;
6842                 }
6843         default:
6844                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6845                 error = ENOPROTOOPT;
6846                 break;
6847         }                       /* end switch (opt) */
6848         return (error);
6849 }
6850
6851 int
6852 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6853 {
6854         struct epoch_tracker et;
6855         struct sctp_inpcb *inp;
6856         void *optval = NULL;
6857         void *p;
6858         size_t optsize = 0;
6859         int error = 0;
6860
6861         if ((sopt->sopt_level == SOL_SOCKET) &&
6862             (sopt->sopt_name == SO_SETFIB)) {
6863                 inp = (struct sctp_inpcb *)so->so_pcb;
6864                 if (inp == NULL) {
6865                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6866                         return (EINVAL);
6867                 }
6868                 SCTP_INP_WLOCK(inp);
6869                 inp->fibnum = so->so_fibnum;
6870                 SCTP_INP_WUNLOCK(inp);
6871                 return (0);
6872         }
6873         if (sopt->sopt_level != IPPROTO_SCTP) {
6874                 /* wrong proto level... send back up to IP */
6875 #ifdef INET6
6876                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6877                         error = ip6_ctloutput(so, sopt);
6878 #endif                          /* INET6 */
6879 #if defined(INET) && defined(INET6)
6880                 else
6881 #endif
6882 #ifdef INET
6883                         error = ip_ctloutput(so, sopt);
6884 #endif
6885                 return (error);
6886         }
6887         optsize = sopt->sopt_valsize;
6888         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6889                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6890                 return (ENOBUFS);
6891         }
6892         if (optsize) {
6893                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6894                 if (optval == NULL) {
6895                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6896                         return (ENOBUFS);
6897                 }
6898                 error = sooptcopyin(sopt, optval, optsize, optsize);
6899                 if (error) {
6900                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6901                         goto out;
6902                 }
6903         }
6904         p = (void *)sopt->sopt_td;
6905         if (sopt->sopt_dir == SOPT_SET) {
6906                 NET_EPOCH_ENTER(et);
6907                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6908                 NET_EPOCH_EXIT(et);
6909         } else if (sopt->sopt_dir == SOPT_GET) {
6910                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6911         } else {
6912                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6913                 error = EINVAL;
6914         }
6915         if ((error == 0) && (optval != NULL)) {
6916                 error = sooptcopyout(sopt, optval, optsize);
6917                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6918         } else if (optval != NULL) {
6919                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6920         }
6921 out:
6922         return (error);
6923 }
6924
6925 #ifdef INET
6926 static int
6927 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6928 {
6929         struct epoch_tracker et;
6930         int error = 0;
6931         int create_lock_on = 0;
6932         uint32_t vrf_id;
6933         struct sctp_inpcb *inp;
6934         struct sctp_tcb *stcb = NULL;
6935
6936         inp = (struct sctp_inpcb *)so->so_pcb;
6937         if (inp == NULL) {
6938                 /* I made the same as TCP since we are not setup? */
6939                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6940                 return (ECONNRESET);
6941         }
6942         if (addr == NULL) {
6943                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6944                 return EINVAL;
6945         }
6946
6947         switch (addr->sa_family) {
6948 #ifdef INET6
6949         case AF_INET6:
6950                 {
6951                         struct sockaddr_in6 *sin6;
6952
6953                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6954                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6955                                 return (EINVAL);
6956                         }
6957                         sin6 = (struct sockaddr_in6 *)addr;
6958                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6959                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6960                                 return (error);
6961                         }
6962                         break;
6963                 }
6964 #endif
6965 #ifdef INET
6966         case AF_INET:
6967                 {
6968                         struct sockaddr_in *sin;
6969
6970                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6971                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6972                                 return (EINVAL);
6973                         }
6974                         sin = (struct sockaddr_in *)addr;
6975                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6976                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6977                                 return (error);
6978                         }
6979                         break;
6980                 }
6981 #endif
6982         default:
6983                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6984                 return (EAFNOSUPPORT);
6985         }
6986         SCTP_INP_INCR_REF(inp);
6987         SCTP_ASOC_CREATE_LOCK(inp);
6988         create_lock_on = 1;
6989         NET_EPOCH_ENTER(et);
6990
6991         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6992             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6993                 /* Should I really unlock ? */
6994                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6995                 error = EFAULT;
6996                 goto out_now;
6997         }
6998 #ifdef INET6
6999         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7000             (addr->sa_family == AF_INET6)) {
7001                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7002                 error = EINVAL;
7003                 goto out_now;
7004         }
7005 #endif
7006         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7007             SCTP_PCB_FLAGS_UNBOUND) {
7008                 /* Bind a ephemeral port */
7009                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7010                 if (error) {
7011                         goto out_now;
7012                 }
7013         }
7014         /* Now do we connect? */
7015         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7016             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7017                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7018                 error = EINVAL;
7019                 goto out_now;
7020         }
7021         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7022             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7023                 /* We are already connected AND the TCP model */
7024                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7025                 error = EADDRINUSE;
7026                 goto out_now;
7027         }
7028         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7029                 SCTP_INP_RLOCK(inp);
7030                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7031                 SCTP_INP_RUNLOCK(inp);
7032         } else {
7033                 /*
7034                  * We increment here since sctp_findassociation_ep_addr()
7035                  * will do a decrement if it finds the stcb as long as the
7036                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7037                  */
7038                 SCTP_INP_INCR_REF(inp);
7039                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7040                 if (stcb == NULL) {
7041                         SCTP_INP_DECR_REF(inp);
7042                 } else {
7043                         SCTP_TCB_UNLOCK(stcb);
7044                 }
7045         }
7046         if (stcb != NULL) {
7047                 /* Already have or am bring up an association */
7048                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7049                 error = EALREADY;
7050                 goto out_now;
7051         }
7052
7053         vrf_id = inp->def_vrf_id;
7054         /* We are GOOD to go */
7055         stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
7056             inp->sctp_ep.pre_open_stream_count,
7057             inp->sctp_ep.port, p,
7058             SCTP_INITIALIZE_AUTH_PARAMS);
7059         if (stcb == NULL) {
7060                 /* Gak! no memory */
7061                 goto out_now;
7062         }
7063         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7064         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7065
7066         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7067         SCTP_TCB_UNLOCK(stcb);
7068 out_now:
7069         NET_EPOCH_EXIT(et);
7070         if (create_lock_on) {
7071                 SCTP_ASOC_CREATE_UNLOCK(inp);
7072         }
7073         SCTP_INP_DECR_REF(inp);
7074         return (error);
7075 }
7076 #endif
7077
7078 int
7079 sctp_listen(struct socket *so, int backlog, struct thread *p)
7080 {
7081         /*
7082          * Note this module depends on the protocol processing being called
7083          * AFTER any socket level flags and backlog are applied to the
7084          * socket. The traditional way that the socket flags are applied is
7085          * AFTER protocol processing. We have made a change to the
7086          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7087          * place if the socket API for SCTP is to work properly.
7088          */
7089
7090         int error = 0;
7091         struct sctp_inpcb *inp;
7092
7093         inp = (struct sctp_inpcb *)so->so_pcb;
7094         if (inp == NULL) {
7095                 /* I made the same as TCP since we are not setup? */
7096                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7097                 return (ECONNRESET);
7098         }
7099         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7100                 /* See if we have a listener */
7101                 struct sctp_inpcb *tinp;
7102                 union sctp_sockstore store;
7103
7104                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7105                         /* not bound all */
7106                         struct sctp_laddr *laddr;
7107
7108                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7109                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7110                                 switch (store.sa.sa_family) {
7111 #ifdef INET
7112                                 case AF_INET:
7113                                         store.sin.sin_port = inp->sctp_lport;
7114                                         break;
7115 #endif
7116 #ifdef INET6
7117                                 case AF_INET6:
7118                                         store.sin6.sin6_port = inp->sctp_lport;
7119                                         break;
7120 #endif
7121                                 default:
7122                                         break;
7123                                 }
7124                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7125                                 if (tinp && (tinp != inp) &&
7126                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7127                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7128                                     (SCTP_IS_LISTENING(tinp))) {
7129                                         /*
7130                                          * we have a listener already and
7131                                          * its not this inp.
7132                                          */
7133                                         SCTP_INP_DECR_REF(tinp);
7134                                         return (EADDRINUSE);
7135                                 } else if (tinp) {
7136                                         SCTP_INP_DECR_REF(tinp);
7137                                 }
7138                         }
7139                 } else {
7140                         /* Setup a local addr bound all */
7141                         memset(&store, 0, sizeof(store));
7142 #ifdef INET6
7143                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7144                                 store.sa.sa_family = AF_INET6;
7145                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7146                         }
7147 #endif
7148 #ifdef INET
7149                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7150                                 store.sa.sa_family = AF_INET;
7151                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7152                         }
7153 #endif
7154                         switch (store.sa.sa_family) {
7155 #ifdef INET
7156                         case AF_INET:
7157                                 store.sin.sin_port = inp->sctp_lport;
7158                                 break;
7159 #endif
7160 #ifdef INET6
7161                         case AF_INET6:
7162                                 store.sin6.sin6_port = inp->sctp_lport;
7163                                 break;
7164 #endif
7165                         default:
7166                                 break;
7167                         }
7168                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7169                         if (tinp && (tinp != inp) &&
7170                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7171                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7172                             (SCTP_IS_LISTENING(tinp))) {
7173                                 /*
7174                                  * we have a listener already and its not
7175                                  * this inp.
7176                                  */
7177                                 SCTP_INP_DECR_REF(tinp);
7178                                 return (EADDRINUSE);
7179                         } else if (tinp) {
7180                                 SCTP_INP_DECR_REF(tinp);
7181                         }
7182                 }
7183         }
7184         SCTP_INP_RLOCK(inp);
7185 #ifdef SCTP_LOCK_LOGGING
7186         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7187                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7188         }
7189 #endif
7190         SOCK_LOCK(so);
7191         error = solisten_proto_check(so);
7192         SOCK_UNLOCK(so);
7193         if (error) {
7194                 SCTP_INP_RUNLOCK(inp);
7195                 return (error);
7196         }
7197         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7198             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7199                 /*
7200                  * The unlucky case - We are in the tcp pool with this guy.
7201                  * - Someone else is in the main inp slot. - We must move
7202                  * this guy (the listener) to the main slot - We must then
7203                  * move the guy that was listener to the TCP Pool.
7204                  */
7205                 if (sctp_swap_inpcb_for_listen(inp)) {
7206                         SCTP_INP_RUNLOCK(inp);
7207                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7208                         return (EADDRINUSE);
7209                 }
7210         }
7211
7212         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7213             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7214                 /* We are already connected AND the TCP model */
7215                 SCTP_INP_RUNLOCK(inp);
7216                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7217                 return (EADDRINUSE);
7218         }
7219         SCTP_INP_RUNLOCK(inp);
7220         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7221                 /* We must do a bind. */
7222                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7223                         /* bind error, probably perm */
7224                         return (error);
7225                 }
7226         }
7227         SCTP_INP_WLOCK(inp);
7228         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7229                 SOCK_LOCK(so);
7230                 solisten_proto(so, backlog);
7231                 SOCK_UNLOCK(so);
7232         }
7233         if (backlog > 0) {
7234                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7235         } else {
7236                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7237         }
7238         SCTP_INP_WUNLOCK(inp);
7239         return (error);
7240 }
7241
7242 static int sctp_defered_wakeup_cnt = 0;
7243
7244 int
7245 sctp_accept(struct socket *so, struct sockaddr **addr)
7246 {
7247         struct sctp_tcb *stcb;
7248         struct sctp_inpcb *inp;
7249         union sctp_sockstore store;
7250 #ifdef INET6
7251         int error;
7252 #endif
7253         inp = (struct sctp_inpcb *)so->so_pcb;
7254
7255         if (inp == NULL) {
7256                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7257                 return (ECONNRESET);
7258         }
7259         SCTP_INP_WLOCK(inp);
7260         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7261                 SCTP_INP_WUNLOCK(inp);
7262                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7263                 return (EOPNOTSUPP);
7264         }
7265         if (so->so_state & SS_ISDISCONNECTED) {
7266                 SCTP_INP_WUNLOCK(inp);
7267                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7268                 return (ECONNABORTED);
7269         }
7270         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7271         if (stcb == NULL) {
7272                 SCTP_INP_WUNLOCK(inp);
7273                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7274                 return (ECONNRESET);
7275         }
7276         SCTP_TCB_LOCK(stcb);
7277         store = stcb->asoc.primary_destination->ro._l_addr;
7278         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7279         /* Wake any delayed sleep action */
7280         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7281                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7282                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7283                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7284                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7285                         if (sowriteable(inp->sctp_socket)) {
7286                                 sowwakeup_locked(inp->sctp_socket);
7287                         } else {
7288                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7289                         }
7290                 }
7291                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7292                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7293                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7294                         if (soreadable(inp->sctp_socket)) {
7295                                 sctp_defered_wakeup_cnt++;
7296                                 sorwakeup_locked(inp->sctp_socket);
7297                         } else {
7298                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7299                         }
7300                 }
7301         }
7302         SCTP_INP_WUNLOCK(inp);
7303         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7304                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7305                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7306         } else {
7307                 SCTP_TCB_UNLOCK(stcb);
7308         }
7309         switch (store.sa.sa_family) {
7310 #ifdef INET
7311         case AF_INET:
7312                 {
7313                         struct sockaddr_in *sin;
7314
7315                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7316                         if (sin == NULL)
7317                                 return (ENOMEM);
7318                         sin->sin_family = AF_INET;
7319                         sin->sin_len = sizeof(*sin);
7320                         sin->sin_port = store.sin.sin_port;
7321                         sin->sin_addr = store.sin.sin_addr;
7322                         *addr = (struct sockaddr *)sin;
7323                         break;
7324                 }
7325 #endif
7326 #ifdef INET6
7327         case AF_INET6:
7328                 {
7329                         struct sockaddr_in6 *sin6;
7330
7331                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7332                         if (sin6 == NULL)
7333                                 return (ENOMEM);
7334                         sin6->sin6_family = AF_INET6;
7335                         sin6->sin6_len = sizeof(*sin6);
7336                         sin6->sin6_port = store.sin6.sin6_port;
7337                         sin6->sin6_addr = store.sin6.sin6_addr;
7338                         if ((error = sa6_recoverscope(sin6)) != 0) {
7339                                 SCTP_FREE_SONAME(sin6);
7340                                 return (error);
7341                         }
7342                         *addr = (struct sockaddr *)sin6;
7343                         break;
7344                 }
7345 #endif
7346         default:
7347                 /* TSNH */
7348                 break;
7349         }
7350         return (0);
7351 }
7352
7353 #ifdef INET
7354 int
7355 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7356 {
7357         struct sockaddr_in *sin;
7358         uint32_t vrf_id;
7359         struct sctp_inpcb *inp;
7360         struct sctp_ifa *sctp_ifa;
7361
7362         /*
7363          * Do the malloc first in case it blocks.
7364          */
7365         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7366         if (sin == NULL)
7367                 return (ENOMEM);
7368         sin->sin_family = AF_INET;
7369         sin->sin_len = sizeof(*sin);
7370         inp = (struct sctp_inpcb *)so->so_pcb;
7371         if (!inp) {
7372                 SCTP_FREE_SONAME(sin);
7373                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7374                 return (ECONNRESET);
7375         }
7376         SCTP_INP_RLOCK(inp);
7377         sin->sin_port = inp->sctp_lport;
7378         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7379                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7380                         struct sctp_tcb *stcb;
7381                         struct sockaddr_in *sin_a;
7382                         struct sctp_nets *net;
7383                         int fnd;
7384
7385                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7386                         if (stcb == NULL) {
7387                                 goto notConn;
7388                         }
7389                         fnd = 0;
7390                         sin_a = NULL;
7391                         SCTP_TCB_LOCK(stcb);
7392                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7393                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7394                                 if (sin_a == NULL)
7395                                         /* this will make coverity happy */
7396                                         continue;
7397
7398                                 if (sin_a->sin_family == AF_INET) {
7399                                         fnd = 1;
7400                                         break;
7401                                 }
7402                         }
7403                         if ((!fnd) || (sin_a == NULL)) {
7404                                 /* punt */
7405                                 SCTP_TCB_UNLOCK(stcb);
7406                                 goto notConn;
7407                         }
7408
7409                         vrf_id = inp->def_vrf_id;
7410                         sctp_ifa = sctp_source_address_selection(inp,
7411                             stcb,
7412                             (sctp_route_t *)&net->ro,
7413                             net, 0, vrf_id);
7414                         if (sctp_ifa) {
7415                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7416                                 sctp_free_ifa(sctp_ifa);
7417                         }
7418                         SCTP_TCB_UNLOCK(stcb);
7419                 } else {
7420                         /* For the bound all case you get back 0 */
7421         notConn:
7422                         sin->sin_addr.s_addr = 0;
7423                 }
7424
7425         } else {
7426                 /* Take the first IPv4 address in the list */
7427                 struct sctp_laddr *laddr;
7428                 int fnd = 0;
7429
7430                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7431                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7432                                 struct sockaddr_in *sin_a;
7433
7434                                 sin_a = &laddr->ifa->address.sin;
7435                                 sin->sin_addr = sin_a->sin_addr;
7436                                 fnd = 1;
7437                                 break;
7438                         }
7439                 }
7440                 if (!fnd) {
7441                         SCTP_FREE_SONAME(sin);
7442                         SCTP_INP_RUNLOCK(inp);
7443                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7444                         return (ENOENT);
7445                 }
7446         }
7447         SCTP_INP_RUNLOCK(inp);
7448         (*addr) = (struct sockaddr *)sin;
7449         return (0);
7450 }
7451
7452 int
7453 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7454 {
7455         struct sockaddr_in *sin;
7456         int fnd;
7457         struct sockaddr_in *sin_a;
7458         struct sctp_inpcb *inp;
7459         struct sctp_tcb *stcb;
7460         struct sctp_nets *net;
7461
7462         /* Do the malloc first in case it blocks. */
7463         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7464         if (sin == NULL)
7465                 return (ENOMEM);
7466         sin->sin_family = AF_INET;
7467         sin->sin_len = sizeof(*sin);
7468
7469         inp = (struct sctp_inpcb *)so->so_pcb;
7470         if ((inp == NULL) ||
7471             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7472                 /* UDP type and listeners will drop out here */
7473                 SCTP_FREE_SONAME(sin);
7474                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7475                 return (ENOTCONN);
7476         }
7477         SCTP_INP_RLOCK(inp);
7478         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7479         if (stcb) {
7480                 SCTP_TCB_LOCK(stcb);
7481         }
7482         SCTP_INP_RUNLOCK(inp);
7483         if (stcb == NULL) {
7484                 SCTP_FREE_SONAME(sin);
7485                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7486                 return (ECONNRESET);
7487         }
7488         fnd = 0;
7489         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7490                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7491                 if (sin_a->sin_family == AF_INET) {
7492                         fnd = 1;
7493                         sin->sin_port = stcb->rport;
7494                         sin->sin_addr = sin_a->sin_addr;
7495                         break;
7496                 }
7497         }
7498         SCTP_TCB_UNLOCK(stcb);
7499         if (!fnd) {
7500                 /* No IPv4 address */
7501                 SCTP_FREE_SONAME(sin);
7502                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7503                 return (ENOENT);
7504         }
7505         (*addr) = (struct sockaddr *)sin;
7506         return (0);
7507 }
7508
7509 struct pr_usrreqs sctp_usrreqs = {
7510         .pru_abort = sctp_abort,
7511         .pru_accept = sctp_accept,
7512         .pru_attach = sctp_attach,
7513         .pru_bind = sctp_bind,
7514         .pru_connect = sctp_connect,
7515         .pru_control = in_control,
7516         .pru_close = sctp_close,
7517         .pru_detach = sctp_close,
7518         .pru_sopoll = sopoll_generic,
7519         .pru_flush = sctp_flush,
7520         .pru_disconnect = sctp_disconnect,
7521         .pru_listen = sctp_listen,
7522         .pru_peeraddr = sctp_peeraddr,
7523         .pru_send = sctp_sendm,
7524         .pru_shutdown = sctp_shutdown,
7525         .pru_sockaddr = sctp_ingetaddr,
7526         .pru_sosend = sctp_sosend,
7527         .pru_soreceive = sctp_soreceive
7528 };
7529 #endif