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
  59
  60 extern const struct sctp_cc_functions sctp_cc_functions[];
  61 extern const struct sctp_ss_functions sctp_ss_functions[];
  62
  63 void
  64 sctp_init(void)
  65 {
  66         u_long sb_max_adj;
  67
  68         /* Initialize and modify the sysctled variables */
  69         sctp_init_sysctls();
  70         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  71                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  72         /*
  73          * Allow a user to take no more than 1/2 the number of clusters or
  74          * the SB_MAX whichever is smaller for the send window.
  75          */
  76         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  77         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  78             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  79         /*
  80          * Now for the recv window, should we take the same amount? or
  81          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  82          * now I will just copy.
  83          */
  84         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  85         SCTP_BASE_VAR(first_time) = 0;
  86         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  87         sctp_pcb_init();
  88 #if defined(SCTP_PACKET_LOGGING)
  89         SCTP_BASE_VAR(packet_log_writers) = 0;
  90         SCTP_BASE_VAR(packet_log_end) = 0;
  91         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  92 #endif
  93         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  94             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  95 }
  96
  97 #ifdef VIMAGE
  98 static void
  99 sctp_finish(void *unused __unused)
 100 {
 101         sctp_pcb_finish();
 102 }
 103
 104 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 105 #endif
 106
 107 void
 108 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 109 {
 110         struct sctp_tmit_chunk *chk;
 111         uint16_t overhead;
 112
 113         /* Adjust that too */
 114         stcb->asoc.smallest_mtu = nxtsz;
 115         /* now off to subtract IP_DF flag if needed */
 116         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 117         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 118                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 119         }
 120         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 121                 if ((chk->send_size + overhead) > nxtsz) {
 122                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 123                 }
 124         }
 125         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 126                 if ((chk->send_size + overhead) > nxtsz) {
 127                         /*
 128                          * For this guy we also mark for immediate resend
 129                          * since we sent to big of chunk
 130                          */
 131                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 132                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 133                                 sctp_flight_size_decrease(chk);
 134                                 sctp_total_flight_decrease(stcb, chk);
 135                                 chk->sent = SCTP_DATAGRAM_RESEND;
 136                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 137                                 chk->rec.data.doing_fast_retransmit = 0;
 138                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 139                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 140                                             chk->whoTo->flight_size,
 141                                             chk->book_size,
 142                                             (uint32_t)(uintptr_t)chk->whoTo,
 143                                             chk->rec.data.tsn);
 144                                 }
 145                                 /* Clear any time so NO RTT is being done */
 146                                 if (chk->do_rtt == 1) {
 147                                         chk->do_rtt = 0;
 148                                         chk->whoTo->rto_needed = 1;
 149                                 }
 150                         }
 151                 }
 152         }
 153 }
 154
 155 #ifdef INET
 156 void
 157 sctp_notify(struct sctp_inpcb *inp,
 158     struct sctp_tcb *stcb,
 159     struct sctp_nets *net,
 160     uint8_t icmp_type,
 161     uint8_t icmp_code,
 162     uint16_t ip_len,
 163     uint32_t next_mtu)
 164 {
 165 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 166         struct socket *so;
 167 #endif
 168         int timer_stopped;
 169
 170         if (icmp_type != ICMP_UNREACH) {
 171                 /* We only care about unreachable */
 172                 SCTP_TCB_UNLOCK(stcb);
 173                 return;
 174         }
 175         if ((icmp_code == ICMP_UNREACH_NET) ||
 176             (icmp_code == ICMP_UNREACH_HOST) ||
 177             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 178             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 179             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 180             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 181             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 182             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 183                 /* Mark the net unreachable. */
 184                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 185                         /* OK, that destination is NOT reachable. */
 186                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 187                         net->dest_state &= ~SCTP_ADDR_PF;
 188                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 189                             stcb, 0,
 190                             (void *)net, SCTP_SO_NOT_LOCKED);
 191                 }
 192                 SCTP_TCB_UNLOCK(stcb);
 193         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 194             (icmp_code == ICMP_UNREACH_PORT)) {
 195                 /* Treat it like an ABORT. */
 196                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 197 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 198                 so = SCTP_INP_SO(inp);
 199                 atomic_add_int(&stcb->asoc.refcnt, 1);
 200                 SCTP_TCB_UNLOCK(stcb);
 201                 SCTP_SOCKET_LOCK(so, 1);
 202                 SCTP_TCB_LOCK(stcb);
 203                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 204 #endif
 205                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 206                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 207 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 208                 SCTP_SOCKET_UNLOCK(so, 1);
 209                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 210 #endif
 211                 /* no need to unlock here, since the TCB is gone */
 212         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 213                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 214                         SCTP_TCB_UNLOCK(stcb);
 215                         return;
 216                 }
 217                 /* Find the next (smaller) MTU */
 218                 if (next_mtu == 0) {
 219                         /*
 220                          * Old type router that does not tell us what the
 221                          * next MTU is. Rats we will have to guess (in a
 222                          * educated fashion of course).
 223                          */
 224                         next_mtu = sctp_get_prev_mtu(ip_len);
 225                 }
 226                 /* Stop the PMTU timer. */
 227                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 228                         timer_stopped = 1;
 229                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 230                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 231                 } else {
 232                         timer_stopped = 0;
 233                 }
 234                 /* Update the path MTU. */
 235                 if (net->port) {
 236                         next_mtu -= sizeof(struct udphdr);
 237                 }
 238                 if (net->mtu > next_mtu) {
 239                         net->mtu = next_mtu;
 240                         if (net->port) {
 241                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 242                         } else {
 243                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 244                         }
 245                 }
 246                 /* Update the association MTU */
 247                 if (stcb->asoc.smallest_mtu > next_mtu) {
 248                         sctp_pathmtu_adjustment(stcb, next_mtu);
 249                 }
 250                 /* Finally, start the PMTU timer if it was running before. */
 251                 if (timer_stopped) {
 252                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 253                 }
 254                 SCTP_TCB_UNLOCK(stcb);
 255         } else {
 256                 SCTP_TCB_UNLOCK(stcb);
 257         }
 258 }
 259
 260 void
 261 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 262 {
 263         struct ip *outer_ip;
 264         struct ip *inner_ip;
 265         struct sctphdr *sh;
 266         struct icmp *icmp;
 267         struct sctp_inpcb *inp;
 268         struct sctp_tcb *stcb;
 269         struct sctp_nets *net;
 270         struct sctp_init_chunk *ch;
 271         struct sockaddr_in src, dst;
 272
 273         if (sa->sa_family != AF_INET ||
 274             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 275                 return;
 276         }
 277         if (PRC_IS_REDIRECT(cmd)) {
 278                 vip = NULL;
 279         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 280                 return;
 281         }
 282         if (vip != NULL) {
 283                 inner_ip = (struct ip *)vip;
 284                 icmp = (struct icmp *)((caddr_t)inner_ip -
 285                     (sizeof(struct icmp) - sizeof(struct ip)));
 286                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 287                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 288                 memset(&src, 0, sizeof(struct sockaddr_in));
 289                 src.sin_family = AF_INET;
 290                 src.sin_len = sizeof(struct sockaddr_in);
 291                 src.sin_port = sh->src_port;
 292                 src.sin_addr = inner_ip->ip_src;
 293                 memset(&dst, 0, sizeof(struct sockaddr_in));
 294                 dst.sin_family = AF_INET;
 295                 dst.sin_len = sizeof(struct sockaddr_in);
 296                 dst.sin_port = sh->dest_port;
 297                 dst.sin_addr = inner_ip->ip_dst;
 298                 /*
 299                  * 'dst' holds the dest of the packet that failed to be
 300                  * sent. 'src' holds our local endpoint address. Thus we
 301                  * reverse the dst and the src in the lookup.
 302                  */
 303                 inp = NULL;
 304                 net = NULL;
 305                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 306                     (struct sockaddr *)&src,
 307                     &inp, &net, 1,
 308                     SCTP_DEFAULT_VRFID);
 309                 if ((stcb != NULL) &&
 310                     (net != NULL) &&
 311                     (inp != NULL)) {
 312                         /* Check the verification tag */
 313                         if (ntohl(sh->v_tag) != 0) {
 314                                 /*
 315                                  * This must be the verification tag used
 316                                  * for sending out packets. We don't
 317                                  * consider packets reflecting the
 318                                  * verification tag.
 319                                  */
 320                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 321                                         SCTP_TCB_UNLOCK(stcb);
 322                                         return;
 323                                 }
 324                         } else {
 325                                 if (ntohs(outer_ip->ip_len) >=
 326                                     sizeof(struct ip) +
 327                                     8 + (inner_ip->ip_hl << 2) + 20) {
 328                                         /*
 329                                          * In this case we can check if we
 330                                          * got an INIT chunk and if the
 331                                          * initiate tag matches.
 332                                          */
 333                                         ch = (struct sctp_init_chunk *)(sh + 1);
 334                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 335                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 336                                                 SCTP_TCB_UNLOCK(stcb);
 337                                                 return;
 338                                         }
 339                                 } else {
 340                                         SCTP_TCB_UNLOCK(stcb);
 341                                         return;
 342                                 }
 343                         }
 344                         sctp_notify(inp, stcb, net,
 345                             icmp->icmp_type,
 346                             icmp->icmp_code,
 347                             ntohs(inner_ip->ip_len),
 348                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 349                 } else {
 350                         if ((stcb == NULL) && (inp != NULL)) {
 351                                 /* reduce ref-count */
 352                                 SCTP_INP_WLOCK(inp);
 353                                 SCTP_INP_DECR_REF(inp);
 354                                 SCTP_INP_WUNLOCK(inp);
 355                         }
 356                         if (stcb) {
 357                                 SCTP_TCB_UNLOCK(stcb);
 358                         }
 359                 }
 360         }
 361         return;
 362 }
 363 #endif
 364
 365 static int
 366 sctp_getcred(SYSCTL_HANDLER_ARGS)
 367 {
 368         struct xucred xuc;
 369         struct sockaddr_in addrs[2];
 370         struct sctp_inpcb *inp;
 371         struct sctp_nets *net;
 372         struct sctp_tcb *stcb;
 373         int error;
 374         uint32_t vrf_id;
 375
 376         /* FIX, for non-bsd is this right? */
 377         vrf_id = SCTP_DEFAULT_VRFID;
 378
 379         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 380
 381         if (error)
 382                 return (error);
 383
 384         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 385         if (error)
 386                 return (error);
 387
 388         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 389             sintosa(&addrs[0]),
 390             &inp, &net, 1, vrf_id);
 391         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 392                 if ((inp != NULL) && (stcb == NULL)) {
 393                         /* reduce ref-count */
 394                         SCTP_INP_WLOCK(inp);
 395                         SCTP_INP_DECR_REF(inp);
 396                         goto cred_can_cont;
 397                 }
 398
 399                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 400                 error = ENOENT;
 401                 goto out;
 402         }
 403         SCTP_TCB_UNLOCK(stcb);
 404         /*
 405          * We use the write lock here, only since in the error leg we need
 406          * it. If we used RLOCK, then we would have to
 407          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 408          * Better to use higher wlock.
 409          */
 410         SCTP_INP_WLOCK(inp);
 411 cred_can_cont:
 412         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 413         if (error) {
 414                 SCTP_INP_WUNLOCK(inp);
 415                 goto out;
 416         }
 417         cru2x(inp->sctp_socket->so_cred, &xuc);
 418         SCTP_INP_WUNLOCK(inp);
 419         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 420 out:
 421         return (error);
 422 }
 423
 424 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 425     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 426
 427
 428 #ifdef INET
 429 static void
 430 sctp_abort(struct socket *so)
 431 {
 432         struct sctp_inpcb *inp;
 433         uint32_t flags;
 434
 435         inp = (struct sctp_inpcb *)so->so_pcb;
 436         if (inp == NULL) {
 437                 return;
 438         }
 439
 440 sctp_must_try_again:
 441         flags = inp->sctp_flags;
 442 #ifdef SCTP_LOG_CLOSING
 443         sctp_log_closing(inp, NULL, 17);
 444 #endif
 445         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 446             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 447 #ifdef SCTP_LOG_CLOSING
 448                 sctp_log_closing(inp, NULL, 16);
 449 #endif
 450                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 451                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 452                 SOCK_LOCK(so);
 453                 SCTP_SB_CLEAR(so->so_snd);
 454                 /*
 455                  * same for the rcv ones, they are only here for the
 456                  * accounting/select.
 457                  */
 458                 SCTP_SB_CLEAR(so->so_rcv);
 459
 460                 /* Now null out the reference, we are completely detached. */
 461                 so->so_pcb = NULL;
 462                 SOCK_UNLOCK(so);
 463         } else {
 464                 flags = inp->sctp_flags;
 465                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 466                         goto sctp_must_try_again;
 467                 }
 468         }
 469         return;
 470 }
 471
 472 static int
 473 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 474 {
 475         struct sctp_inpcb *inp;
 476         struct inpcb *ip_inp;
 477         int error;
 478         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 479
 480         inp = (struct sctp_inpcb *)so->so_pcb;
 481         if (inp != NULL) {
 482                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 483                 return (EINVAL);
 484         }
 485         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 486                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 487                 if (error) {
 488                         return (error);
 489                 }
 490         }
 491         error = sctp_inpcb_alloc(so, vrf_id);
 492         if (error) {
 493                 return (error);
 494         }
 495         inp = (struct sctp_inpcb *)so->so_pcb;
 496         SCTP_INP_WLOCK(inp);
 497         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 498         ip_inp = &inp->ip_inp.inp;
 499         ip_inp->inp_vflag |= INP_IPV4;
 500         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 501         SCTP_INP_WUNLOCK(inp);
 502         return (0);
 503 }
 504
 505 static int
 506 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 507 {
 508         struct sctp_inpcb *inp;
 509
 510         inp = (struct sctp_inpcb *)so->so_pcb;
 511         if (inp == NULL) {
 512                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 513                 return (EINVAL);
 514         }
 515         if (addr != NULL) {
 516                 if ((addr->sa_family != AF_INET) ||
 517                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 518                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 519                         return (EINVAL);
 520                 }
 521         }
 522         return (sctp_inpcb_bind(so, addr, NULL, p));
 523 }
 524
 525 #endif
 526 void
 527 sctp_close(struct socket *so)
 528 {
 529         struct sctp_inpcb *inp;
 530         uint32_t flags;
 531
 532         inp = (struct sctp_inpcb *)so->so_pcb;
 533         if (inp == NULL)
 534                 return;
 535
 536         /*
 537          * Inform all the lower layer assoc that we are done.
 538          */
 539 sctp_must_try_again:
 540         flags = inp->sctp_flags;
 541 #ifdef SCTP_LOG_CLOSING
 542         sctp_log_closing(inp, NULL, 17);
 543 #endif
 544         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 545             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 546                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 547                     (so->so_rcv.sb_cc > 0)) {
 548 #ifdef SCTP_LOG_CLOSING
 549                         sctp_log_closing(inp, NULL, 13);
 550 #endif
 551                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 552                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 553                 } else {
 554 #ifdef SCTP_LOG_CLOSING
 555                         sctp_log_closing(inp, NULL, 14);
 556 #endif
 557                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 558                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 559                 }
 560                 /*
 561                  * The socket is now detached, no matter what the state of
 562                  * the SCTP association.
 563                  */
 564                 SOCK_LOCK(so);
 565                 SCTP_SB_CLEAR(so->so_snd);
 566                 /*
 567                  * same for the rcv ones, they are only here for the
 568                  * accounting/select.
 569                  */
 570                 SCTP_SB_CLEAR(so->so_rcv);
 571
 572                 /* Now null out the reference, we are completely detached. */
 573                 so->so_pcb = NULL;
 574                 SOCK_UNLOCK(so);
 575         } else {
 576                 flags = inp->sctp_flags;
 577                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 578                         goto sctp_must_try_again;
 579                 }
 580         }
 581         return;
 582 }
 583
 584
 585 int
 586 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 587     struct mbuf *control, struct thread *p);
 588
 589
 590 int
 591 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 592     struct mbuf *control, struct thread *p)
 593 {
 594         struct sctp_inpcb *inp;
 595         int error;
 596
 597         inp = (struct sctp_inpcb *)so->so_pcb;
 598         if (inp == NULL) {
 599                 if (control) {
 600                         sctp_m_freem(control);
 601                         control = NULL;
 602                 }
 603                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 604                 sctp_m_freem(m);
 605                 return (EINVAL);
 606         }
 607         /* Got to have an to address if we are NOT a connected socket */
 608         if ((addr == NULL) &&
 609             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 610             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 611                 goto connected_type;
 612         } else if (addr == NULL) {
 613                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 614                 error = EDESTADDRREQ;
 615                 sctp_m_freem(m);
 616                 if (control) {
 617                         sctp_m_freem(control);
 618                         control = NULL;
 619                 }
 620                 return (error);
 621         }
 622 #ifdef INET6
 623         if (addr->sa_family != AF_INET) {
 624                 /* must be a v4 address! */
 625                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 626                 sctp_m_freem(m);
 627                 if (control) {
 628                         sctp_m_freem(control);
 629                         control = NULL;
 630                 }
 631                 error = EDESTADDRREQ;
 632                 return (error);
 633         }
 634 #endif                          /* INET6 */
 635 connected_type:
 636         /* now what about control */
 637         if (control) {
 638                 if (inp->control) {
 639                         sctp_m_freem(inp->control);
 640                         inp->control = NULL;
 641                 }
 642                 inp->control = control;
 643         }
 644         /* Place the data */
 645         if (inp->pkt) {
 646                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 647                 inp->pkt_last = m;
 648         } else {
 649                 inp->pkt_last = inp->pkt = m;
 650         }
 651         if (
 652         /* FreeBSD uses a flag passed */
 653             ((flags & PRUS_MORETOCOME) == 0)
 654             ) {
 655                 /*
 656                  * note with the current version this code will only be used
 657                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 658                  * re-defining sosend to use the sctp_sosend. One can
 659                  * optionally switch back to this code (by changing back the
 660                  * definitions) but this is not advisable. This code is used
 661                  * by FreeBSD when sending a file with sendfile() though.
 662                  */
 663                 int ret;
 664
 665                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 666                 inp->pkt = NULL;
 667                 inp->control = NULL;
 668                 return (ret);
 669         } else {
 670                 return (0);
 671         }
 672 }
 673
 674 int
 675 sctp_disconnect(struct socket *so)
 676 {
 677         struct sctp_inpcb *inp;
 678
 679         inp = (struct sctp_inpcb *)so->so_pcb;
 680         if (inp == NULL) {
 681                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 682                 return (ENOTCONN);
 683         }
 684         SCTP_INP_RLOCK(inp);
 685         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 686             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 687                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 688                         /* No connection */
 689                         SCTP_INP_RUNLOCK(inp);
 690                         return (0);
 691                 } else {
 692                         struct sctp_association *asoc;
 693                         struct sctp_tcb *stcb;
 694
 695                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 696                         if (stcb == NULL) {
 697                                 SCTP_INP_RUNLOCK(inp);
 698                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 699                                 return (EINVAL);
 700                         }
 701                         SCTP_TCB_LOCK(stcb);
 702                         asoc = &stcb->asoc;
 703                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 704                                 /* We are about to be freed, out of here */
 705                                 SCTP_TCB_UNLOCK(stcb);
 706                                 SCTP_INP_RUNLOCK(inp);
 707                                 return (0);
 708                         }
 709                         if (((so->so_options & SO_LINGER) &&
 710                             (so->so_linger == 0)) ||
 711                             (so->so_rcv.sb_cc > 0)) {
 712                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 713                                         /* Left with Data unread */
 714                                         struct mbuf *op_err;
 715
 716                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 717                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 718                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 719                                 }
 720                                 SCTP_INP_RUNLOCK(inp);
 721                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 722                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 723                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 724                                 }
 725                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 726                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 727                                 /* No unlock tcb assoc is gone */
 728                                 return (0);
 729                         }
 730                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 731                             TAILQ_EMPTY(&asoc->sent_queue) &&
 732                             (asoc->stream_queue_cnt == 0)) {
 733                                 /* there is nothing queued to send, so done */
 734                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 735                                         goto abort_anyway;
 736                                 }
 737                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 738                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 739                                         /* only send SHUTDOWN 1st time thru */
 740                                         struct sctp_nets *netp;
 741
 742                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 743                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 744                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 745                                         }
 746                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 747                                         sctp_stop_timers_for_shutdown(stcb);
 748                                         if (stcb->asoc.alternate) {
 749                                                 netp = stcb->asoc.alternate;
 750                                         } else {
 751                                                 netp = stcb->asoc.primary_destination;
 752                                         }
 753                                         sctp_send_shutdown(stcb, netp);
 754                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 755                                             stcb->sctp_ep, stcb, netp);
 756                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 757                                             stcb->sctp_ep, stcb, netp);
 758                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 759                                 }
 760                         } else {
 761                                 /*
 762                                  * we still got (or just got) data to send,
 763                                  * so set SHUTDOWN_PENDING
 764                                  */
 765                                 /*
 766                                  * XXX sockets draft says that SCTP_EOF
 767                                  * should be sent with no data. currently,
 768                                  * we will allow user data to be sent first
 769                                  * and move to SHUTDOWN-PENDING
 770                                  */
 771                                 struct sctp_nets *netp;
 772
 773                                 if (stcb->asoc.alternate) {
 774                                         netp = stcb->asoc.alternate;
 775                                 } else {
 776                                         netp = stcb->asoc.primary_destination;
 777                                 }
 778
 779                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 780                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 781                                     netp);
 782                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 783                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 784                                 }
 785                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 786                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 787                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 788                                         struct mbuf *op_err;
 789
 790                         abort_anyway:
 791                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 792                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 793                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 794                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 795                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 796                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 797                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 798                                         }
 799                                         SCTP_INP_RUNLOCK(inp);
 800                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 801                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 802                                         return (0);
 803                                 } else {
 804                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 805                                 }
 806                         }
 807                         soisdisconnecting(so);
 808                         SCTP_TCB_UNLOCK(stcb);
 809                         SCTP_INP_RUNLOCK(inp);
 810                         return (0);
 811                 }
 812                 /* not reached */
 813         } else {
 814                 /* UDP model does not support this */
 815                 SCTP_INP_RUNLOCK(inp);
 816                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 817                 return (EOPNOTSUPP);
 818         }
 819 }
 820
 821 int
 822 sctp_flush(struct socket *so, int how)
 823 {
 824         /*
 825          * We will just clear out the values and let subsequent close clear
 826          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 827          * they will not be able to read the data, the socket will block
 828          * that from happening.
 829          */
 830         struct sctp_inpcb *inp;
 831
 832         inp = (struct sctp_inpcb *)so->so_pcb;
 833         if (inp == NULL) {
 834                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 835                 return (EINVAL);
 836         }
 837         SCTP_INP_RLOCK(inp);
 838         /* For the 1 to many model this does nothing */
 839         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 840                 SCTP_INP_RUNLOCK(inp);
 841                 return (0);
 842         }
 843         SCTP_INP_RUNLOCK(inp);
 844         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 845                 /*
 846                  * First make sure the sb will be happy, we don't use these
 847                  * except maybe the count
 848                  */
 849                 SCTP_INP_WLOCK(inp);
 850                 SCTP_INP_READ_LOCK(inp);
 851                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 852                 SCTP_INP_READ_UNLOCK(inp);
 853                 SCTP_INP_WUNLOCK(inp);
 854                 so->so_rcv.sb_cc = 0;
 855                 so->so_rcv.sb_mbcnt = 0;
 856                 so->so_rcv.sb_mb = NULL;
 857         }
 858         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 859                 /*
 860                  * First make sure the sb will be happy, we don't use these
 861                  * except maybe the count
 862                  */
 863                 so->so_snd.sb_cc = 0;
 864                 so->so_snd.sb_mbcnt = 0;
 865                 so->so_snd.sb_mb = NULL;
 866
 867         }
 868         return (0);
 869 }
 870
 871 int
 872 sctp_shutdown(struct socket *so)
 873 {
 874         struct sctp_inpcb *inp;
 875
 876         inp = (struct sctp_inpcb *)so->so_pcb;
 877         if (inp == NULL) {
 878                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 879                 return (EINVAL);
 880         }
 881         SCTP_INP_RLOCK(inp);
 882         /* For UDP model this is a invalid call */
 883         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 884             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 885                 /* Restore the flags that the soshutdown took away. */
 886                 SOCKBUF_LOCK(&so->so_rcv);
 887                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 888                 SOCKBUF_UNLOCK(&so->so_rcv);
 889                 /* This proc will wakeup for read and do nothing (I hope) */
 890                 SCTP_INP_RUNLOCK(inp);
 891                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 892                 return (EOPNOTSUPP);
 893         } else {
 894                 /*
 895                  * Ok, if we reach here its the TCP model and it is either a
 896                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 897                  * against it.
 898                  */
 899                 struct sctp_tcb *stcb;
 900                 struct sctp_association *asoc;
 901                 struct sctp_nets *netp;
 902
 903                 if ((so->so_state &
 904                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 905                         SCTP_INP_RUNLOCK(inp);
 906                         return (ENOTCONN);
 907                 }
 908                 socantsendmore(so);
 909
 910                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 911                 if (stcb == NULL) {
 912                         /*
 913                          * Ok, we hit the case that the shutdown call was
 914                          * made after an abort or something. Nothing to do
 915                          * now.
 916                          */
 917                         SCTP_INP_RUNLOCK(inp);
 918                         return (0);
 919                 }
 920                 SCTP_TCB_LOCK(stcb);
 921                 asoc = &stcb->asoc;
 922                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 923                         SCTP_TCB_UNLOCK(stcb);
 924                         SCTP_INP_RUNLOCK(inp);
 925                         return (0);
 926                 }
 927                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 928                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 929                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 930                         /*
 931                          * If we are not in or before ESTABLISHED, there is
 932                          * no protocol action required.
 933                          */
 934                         SCTP_TCB_UNLOCK(stcb);
 935                         SCTP_INP_RUNLOCK(inp);
 936                         return (0);
 937                 }
 938                 if (stcb->asoc.alternate) {
 939                         netp = stcb->asoc.alternate;
 940                 } else {
 941                         netp = stcb->asoc.primary_destination;
 942                 }
 943                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 944                     TAILQ_EMPTY(&asoc->send_queue) &&
 945                     TAILQ_EMPTY(&asoc->sent_queue) &&
 946                     (asoc->stream_queue_cnt == 0)) {
 947                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 948                                 goto abort_anyway;
 949                         }
 950                         /* there is nothing queued to send, so I'm done... */
 951                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 952                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 953                         sctp_stop_timers_for_shutdown(stcb);
 954                         sctp_send_shutdown(stcb, netp);
 955                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 956                             stcb->sctp_ep, stcb, netp);
 957                 } else {
 958                         /*
 959                          * We still got (or just got) data to send, so set
 960                          * SHUTDOWN_PENDING.
 961                          */
 962                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 963                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 964                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 965                         }
 966                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 967                             TAILQ_EMPTY(&asoc->sent_queue) &&
 968                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 969                                 struct mbuf *op_err;
 970
 971                 abort_anyway:
 972                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 973                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 974                                 SCTP_INP_RUNLOCK(inp);
 975                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 976                                     op_err, SCTP_SO_LOCKED);
 977                                 return (0);
 978                         }
 979                 }
 980                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 981                 /*
 982                  * XXX: Why do this in the case where we have still data
 983                  * queued?
 984                  */
 985                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 986                 SCTP_TCB_UNLOCK(stcb);
 987                 SCTP_INP_RUNLOCK(inp);
 988                 return (0);
 989         }
 990 }
 991
 992 /*
 993  * copies a "user" presentable address and removes embedded scope, etc.
 994  * returns 0 on success, 1 on error
 995  */
 996 static uint32_t
 997 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 998 {
 999 #ifdef INET6
1000         struct sockaddr_in6 lsa6;
1001
1002         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1003             &lsa6);
1004 #endif
1005         memcpy(ss, sa, sa->sa_len);
1006         return (0);
1007 }
1008
1009
1010
1011 /*
1012  * NOTE: assumes addr lock is held
1013  */
1014 static size_t
1015 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1016     struct sctp_tcb *stcb,
1017     size_t limit,
1018     struct sockaddr_storage *sas,
1019     uint32_t vrf_id)
1020 {
1021         struct sctp_ifn *sctp_ifn;
1022         struct sctp_ifa *sctp_ifa;
1023         size_t actual;
1024         int loopback_scope;
1025 #if defined(INET)
1026         int ipv4_local_scope, ipv4_addr_legal;
1027 #endif
1028 #if defined(INET6)
1029         int local_scope, site_scope, ipv6_addr_legal;
1030 #endif
1031         struct sctp_vrf *vrf;
1032
1033         actual = 0;
1034         if (limit <= 0)
1035                 return (actual);
1036
1037         if (stcb) {
1038                 /* Turn on all the appropriate scope */
1039                 loopback_scope = stcb->asoc.scope.loopback_scope;
1040 #if defined(INET)
1041                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1042                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1043 #endif
1044 #if defined(INET6)
1045                 local_scope = stcb->asoc.scope.local_scope;
1046                 site_scope = stcb->asoc.scope.site_scope;
1047                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1048 #endif
1049         } else {
1050                 /* Use generic values for endpoints. */
1051                 loopback_scope = 1;
1052 #if defined(INET)
1053                 ipv4_local_scope = 1;
1054 #endif
1055 #if defined(INET6)
1056                 local_scope = 1;
1057                 site_scope = 1;
1058 #endif
1059                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1060 #if defined(INET6)
1061                         ipv6_addr_legal = 1;
1062 #endif
1063 #if defined(INET)
1064                         if (SCTP_IPV6_V6ONLY(inp)) {
1065                                 ipv4_addr_legal = 0;
1066                         } else {
1067                                 ipv4_addr_legal = 1;
1068                         }
1069 #endif
1070                 } else {
1071 #if defined(INET6)
1072                         ipv6_addr_legal = 0;
1073 #endif
1074 #if defined(INET)
1075                         ipv4_addr_legal = 1;
1076 #endif
1077                 }
1078         }
1079         vrf = sctp_find_vrf(vrf_id);
1080         if (vrf == NULL) {
1081                 return (0);
1082         }
1083         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1084                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1085                         if ((loopback_scope == 0) &&
1086                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1087                                 /* Skip loopback if loopback_scope not set */
1088                                 continue;
1089                         }
1090                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1091                                 if (stcb) {
1092                                         /*
1093                                          * For the BOUND-ALL case, the list
1094                                          * associated with a TCB is Always
1095                                          * considered a reverse list.. i.e.
1096                                          * it lists addresses that are NOT
1097                                          * part of the association. If this
1098                                          * is one of those we must skip it.
1099                                          */
1100                                         if (sctp_is_addr_restricted(stcb,
1101                                             sctp_ifa)) {
1102                                                 continue;
1103                                         }
1104                                 }
1105                                 switch (sctp_ifa->address.sa.sa_family) {
1106 #ifdef INET
1107                                 case AF_INET:
1108                                         if (ipv4_addr_legal) {
1109                                                 struct sockaddr_in *sin;
1110
1111                                                 sin = &sctp_ifa->address.sin;
1112                                                 if (sin->sin_addr.s_addr == 0) {
1113                                                         /*
1114                                                          * we skip
1115                                                          * unspecifed
1116                                                          * addresses
1117                                                          */
1118                                                         continue;
1119                                                 }
1120                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1121                                                     &sin->sin_addr) != 0) {
1122                                                         continue;
1123                                                 }
1124                                                 if ((ipv4_local_scope == 0) &&
1125                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1126                                                         continue;
1127                                                 }
1128 #ifdef INET6
1129                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1130                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1131                                                                 return (actual);
1132                                                         }
1133                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1134                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1135                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1136                                                         actual += sizeof(struct sockaddr_in6);
1137                                                 } else {
1138 #endif
1139                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1140                                                                 return (actual);
1141                                                         }
1142                                                         memcpy(sas, sin, sizeof(struct sockaddr_in));
1143                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1144                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in));
1145                                                         actual += sizeof(struct sockaddr_in);
1146 #ifdef INET6
1147                                                 }
1148 #endif
1149                                         } else {
1150                                                 continue;
1151                                         }
1152                                         break;
1153 #endif
1154 #ifdef INET6
1155                                 case AF_INET6:
1156                                         if (ipv6_addr_legal) {
1157                                                 struct sockaddr_in6 *sin6;
1158
1159                                                 sin6 = &sctp_ifa->address.sin6;
1160                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1161                                                         /*
1162                                                          * we skip
1163                                                          * unspecifed
1164                                                          * addresses
1165                                                          */
1166                                                         continue;
1167                                                 }
1168                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1169                                                     &sin6->sin6_addr) != 0) {
1170                                                         continue;
1171                                                 }
1172                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1173                                                         if (local_scope == 0)
1174                                                                 continue;
1175                                                         if (sin6->sin6_scope_id == 0) {
1176                                                                 if (sa6_recoverscope(sin6) != 0)
1177                                                                         /*
1178                                                                          *
1179                                                                          * bad
1180                                                                          * link
1181                                                                          *
1182                                                                          * local
1183                                                                          *
1184                                                                          * address
1185                                                                          */
1186                                                                         continue;
1187                                                         }
1188                                                 }
1189                                                 if ((site_scope == 0) &&
1190                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1191                                                         continue;
1192                                                 }
1193                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1194                                                         return (actual);
1195                                                 }
1196                                                 memcpy(sas, sin6, sizeof(struct sockaddr_in6));
1197                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1198                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1199                                                 actual += sizeof(struct sockaddr_in6);
1200                                         } else {
1201                                                 continue;
1202                                         }
1203                                         break;
1204 #endif
1205                                 default:
1206                                         /* TSNH */
1207                                         break;
1208                                 }
1209                         }
1210                 }
1211         } else {
1212                 struct sctp_laddr *laddr;
1213                 size_t sa_len;
1214
1215                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1216                         if (stcb) {
1217                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1218                                         continue;
1219                                 }
1220                         }
1221                         sa_len = laddr->ifa->address.sa.sa_len;
1222                         if (actual + sa_len > limit) {
1223                                 return (actual);
1224                         }
1225                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1226                                 continue;
1227                         switch (laddr->ifa->address.sa.sa_family) {
1228 #ifdef INET
1229                         case AF_INET:
1230                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1231                                 break;
1232 #endif
1233 #ifdef INET6
1234                         case AF_INET6:
1235                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1236                                 break;
1237 #endif
1238                         default:
1239                                 /* TSNH */
1240                                 break;
1241                         }
1242                         sas = (struct sockaddr_storage *)((caddr_t)sas + sa_len);
1243                         actual += sa_len;
1244                 }
1245         }
1246         return (actual);
1247 }
1248
1249 static size_t
1250 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1251     struct sctp_tcb *stcb,
1252     size_t limit,
1253     struct sockaddr_storage *sas)
1254 {
1255         size_t size = 0;
1256
1257         SCTP_IPI_ADDR_RLOCK();
1258         /* fill up addresses for the endpoint's default vrf */
1259         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1260             inp->def_vrf_id);
1261         SCTP_IPI_ADDR_RUNLOCK();
1262         return (size);
1263 }
1264
1265 /*
1266  * NOTE: assumes addr lock is held
1267  */
1268 static int
1269 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1270 {
1271         int cnt = 0;
1272         struct sctp_vrf *vrf = NULL;
1273
1274         /*
1275          * In both sub-set bound an bound_all cases we return the MAXIMUM
1276          * number of addresses that you COULD get. In reality the sub-set
1277          * bound may have an exclusion list for a given TCB OR in the
1278          * bound-all case a TCB may NOT include the loopback or other
1279          * addresses as well.
1280          */
1281         vrf = sctp_find_vrf(vrf_id);
1282         if (vrf == NULL) {
1283                 return (0);
1284         }
1285         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1286                 struct sctp_ifn *sctp_ifn;
1287                 struct sctp_ifa *sctp_ifa;
1288
1289                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1290                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1291                                 /* Count them if they are the right type */
1292                                 switch (sctp_ifa->address.sa.sa_family) {
1293 #ifdef INET
1294                                 case AF_INET:
1295 #ifdef INET6
1296                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1297                                                 cnt += sizeof(struct sockaddr_in6);
1298                                         else
1299                                                 cnt += sizeof(struct sockaddr_in);
1300 #else
1301                                         cnt += sizeof(struct sockaddr_in);
1302 #endif
1303                                         break;
1304 #endif
1305 #ifdef INET6
1306                                 case AF_INET6:
1307                                         cnt += sizeof(struct sockaddr_in6);
1308                                         break;
1309 #endif
1310                                 default:
1311                                         break;
1312                                 }
1313                         }
1314                 }
1315         } else {
1316                 struct sctp_laddr *laddr;
1317
1318                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1319                         switch (laddr->ifa->address.sa.sa_family) {
1320 #ifdef INET
1321                         case AF_INET:
1322 #ifdef INET6
1323                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1324                                         cnt += sizeof(struct sockaddr_in6);
1325                                 else
1326                                         cnt += sizeof(struct sockaddr_in);
1327 #else
1328                                 cnt += sizeof(struct sockaddr_in);
1329 #endif
1330                                 break;
1331 #endif
1332 #ifdef INET6
1333                         case AF_INET6:
1334                                 cnt += sizeof(struct sockaddr_in6);
1335                                 break;
1336 #endif
1337                         default:
1338                                 break;
1339                         }
1340                 }
1341         }
1342         return (cnt);
1343 }
1344
1345 static int
1346 sctp_count_max_addresses(struct sctp_inpcb *inp)
1347 {
1348         int cnt = 0;
1349
1350         SCTP_IPI_ADDR_RLOCK();
1351         /* count addresses for the endpoint's default VRF */
1352         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1353         SCTP_IPI_ADDR_RUNLOCK();
1354         return (cnt);
1355 }
1356
1357 static int
1358 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1359     size_t optsize, void *p, int delay)
1360 {
1361         int error;
1362         int creat_lock_on = 0;
1363         struct sctp_tcb *stcb = NULL;
1364         struct sockaddr *sa;
1365         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1366         uint32_t vrf_id;
1367         sctp_assoc_t *a_id;
1368
1369         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1370
1371         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1372             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1373                 /* We are already connected AND the TCP model */
1374                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1375                 return (EADDRINUSE);
1376         }
1377
1378         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1379             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1380                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1381                 return (EINVAL);
1382         }
1383
1384         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1385                 SCTP_INP_RLOCK(inp);
1386                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1387                 SCTP_INP_RUNLOCK(inp);
1388         }
1389         if (stcb) {
1390                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1391                 return (EALREADY);
1392         }
1393         SCTP_INP_INCR_REF(inp);
1394         SCTP_ASOC_CREATE_LOCK(inp);
1395         creat_lock_on = 1;
1396         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1397             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1398                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1399                 error = EFAULT;
1400                 goto out_now;
1401         }
1402         totaddrp = (unsigned int *)optval;
1403         totaddr = *totaddrp;
1404         sa = (struct sockaddr *)(totaddrp + 1);
1405         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1406         if (error != 0) {
1407                 /* Already have or am bring up an association */
1408                 SCTP_ASOC_CREATE_UNLOCK(inp);
1409                 creat_lock_on = 0;
1410                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1411                 goto out_now;
1412         }
1413 #ifdef INET6
1414         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1415             (num_v6 > 0)) {
1416                 error = EINVAL;
1417                 goto out_now;
1418         }
1419         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1420             (num_v4 > 0)) {
1421                 if (SCTP_IPV6_V6ONLY(inp)) {
1422                         /*
1423                          * if IPV6_V6ONLY flag, ignore connections destined
1424                          * to a v4 addr or v4-mapped addr
1425                          */
1426                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1427                         error = EINVAL;
1428                         goto out_now;
1429                 }
1430         }
1431 #endif                          /* INET6 */
1432         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1433             SCTP_PCB_FLAGS_UNBOUND) {
1434                 /* Bind a ephemeral port */
1435                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1436                 if (error) {
1437                         goto out_now;
1438                 }
1439         }
1440
1441         /* FIX ME: do we want to pass in a vrf on the connect call? */
1442         vrf_id = inp->def_vrf_id;
1443
1444
1445         /* We are GOOD to go */
1446         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1447             inp->sctp_ep.pre_open_stream_count,
1448             inp->sctp_ep.port,
1449             (struct thread *)p,
1450             SCTP_INITIALIZE_AUTH_PARAMS);
1451         if (stcb == NULL) {
1452                 /* Gak! no memory */
1453                 goto out_now;
1454         }
1455         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1456                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1457                 /* Set the connected flag so we can queue data */
1458                 soisconnecting(so);
1459         }
1460         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1461         /* move to second address */
1462         switch (sa->sa_family) {
1463 #ifdef INET
1464         case AF_INET:
1465                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1466                 break;
1467 #endif
1468 #ifdef INET6
1469         case AF_INET6:
1470                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1471                 break;
1472 #endif
1473         default:
1474                 break;
1475         }
1476
1477         error = 0;
1478         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1479         /* Fill in the return id */
1480         if (error) {
1481                 goto out_now;
1482         }
1483         a_id = (sctp_assoc_t *)optval;
1484         *a_id = sctp_get_associd(stcb);
1485
1486         if (delay) {
1487                 /* doing delayed connection */
1488                 stcb->asoc.delayed_connection = 1;
1489                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1490         } else {
1491                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1492                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1493         }
1494         SCTP_TCB_UNLOCK(stcb);
1495 out_now:
1496         if (creat_lock_on) {
1497                 SCTP_ASOC_CREATE_UNLOCK(inp);
1498         }
1499         SCTP_INP_DECR_REF(inp);
1500         return (error);
1501 }
1502
1503 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1504         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1505             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1506                 SCTP_INP_RLOCK(inp); \
1507                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1508                 if (stcb) { \
1509                         SCTP_TCB_LOCK(stcb); \
1510                 } \
1511                 SCTP_INP_RUNLOCK(inp); \
1512         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1513                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1514                 if (stcb == NULL) { \
1515                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1516                         error = ENOENT; \
1517                         break; \
1518                 } \
1519         } else { \
1520                 stcb = NULL; \
1521         } \
1522 }
1523
1524
1525 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1526         if (size < sizeof(type)) { \
1527                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1528                 error = EINVAL; \
1529                 break; \
1530         } else { \
1531                 destp = (type *)srcp; \
1532         } \
1533 }
1534
1535 static int
1536 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1537     void *p)
1538 {
1539         struct sctp_inpcb *inp = NULL;
1540         int error, val = 0;
1541         struct sctp_tcb *stcb = NULL;
1542
1543         if (optval == NULL) {
1544                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1545                 return (EINVAL);
1546         }
1547
1548         inp = (struct sctp_inpcb *)so->so_pcb;
1549         if (inp == NULL) {
1550                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1551                 return EINVAL;
1552         }
1553         error = 0;
1554
1555         switch (optname) {
1556         case SCTP_NODELAY:
1557         case SCTP_AUTOCLOSE:
1558         case SCTP_EXPLICIT_EOR:
1559         case SCTP_AUTO_ASCONF:
1560         case SCTP_DISABLE_FRAGMENTS:
1561         case SCTP_I_WANT_MAPPED_V4_ADDR:
1562         case SCTP_USE_EXT_RCVINFO:
1563                 SCTP_INP_RLOCK(inp);
1564                 switch (optname) {
1565                 case SCTP_DISABLE_FRAGMENTS:
1566                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1567                         break;
1568                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1569                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1570                         break;
1571                 case SCTP_AUTO_ASCONF:
1572                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1573                                 /* only valid for bound all sockets */
1574                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1575                         } else {
1576                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1577                                 error = EINVAL;
1578                                 goto flags_out;
1579                         }
1580                         break;
1581                 case SCTP_EXPLICIT_EOR:
1582                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1583                         break;
1584                 case SCTP_NODELAY:
1585                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1586                         break;
1587                 case SCTP_USE_EXT_RCVINFO:
1588                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1589                         break;
1590                 case SCTP_AUTOCLOSE:
1591                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1592                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1593                         else
1594                                 val = 0;
1595                         break;
1596
1597                 default:
1598                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1599                         error = ENOPROTOOPT;
1600                 }               /* end switch (sopt->sopt_name) */
1601                 if (*optsize < sizeof(val)) {
1602                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1603                         error = EINVAL;
1604                 }
1605 flags_out:
1606                 SCTP_INP_RUNLOCK(inp);
1607                 if (error == 0) {
1608                         /* return the option value */
1609                         *(int *)optval = val;
1610                         *optsize = sizeof(val);
1611                 }
1612                 break;
1613         case SCTP_GET_PACKET_LOG:
1614                 {
1615 #ifdef  SCTP_PACKET_LOGGING
1616                         uint8_t *target;
1617                         int ret;
1618
1619                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1620                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1621                         *optsize = ret;
1622 #else
1623                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1624                         error = EOPNOTSUPP;
1625 #endif
1626                         break;
1627                 }
1628         case SCTP_REUSE_PORT:
1629                 {
1630                         uint32_t *value;
1631
1632                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1633                                 /* Can't do this for a 1-m socket */
1634                                 error = EINVAL;
1635                                 break;
1636                         }
1637                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1638                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1639                         *optsize = sizeof(uint32_t);
1640                         break;
1641                 }
1642         case SCTP_PARTIAL_DELIVERY_POINT:
1643                 {
1644                         uint32_t *value;
1645
1646                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1647                         *value = inp->partial_delivery_point;
1648                         *optsize = sizeof(uint32_t);
1649                         break;
1650                 }
1651         case SCTP_FRAGMENT_INTERLEAVE:
1652                 {
1653                         uint32_t *value;
1654
1655                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1656                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1657                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1658                                         *value = SCTP_FRAG_LEVEL_2;
1659                                 } else {
1660                                         *value = SCTP_FRAG_LEVEL_1;
1661                                 }
1662                         } else {
1663                                 *value = SCTP_FRAG_LEVEL_0;
1664                         }
1665                         *optsize = sizeof(uint32_t);
1666                         break;
1667                 }
1668         case SCTP_INTERLEAVING_SUPPORTED:
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
1675                         if (stcb) {
1676                                 av->assoc_value = stcb->asoc.idata_supported;
1677                                 SCTP_TCB_UNLOCK(stcb);
1678                         } else {
1679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1681                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1682                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1683                                         SCTP_INP_RLOCK(inp);
1684                                         if (inp->idata_supported) {
1685                                                 av->assoc_value = 1;
1686                                         } else {
1687                                                 av->assoc_value = 0;
1688                                         }
1689                                         SCTP_INP_RUNLOCK(inp);
1690                                 } else {
1691                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1692                                         error = EINVAL;
1693                                 }
1694                         }
1695                         if (error == 0) {
1696                                 *optsize = sizeof(struct sctp_assoc_value);
1697                         }
1698                         break;
1699                 }
1700         case SCTP_CMT_ON_OFF:
1701                 {
1702                         struct sctp_assoc_value *av;
1703
1704                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1705                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1706                         if (stcb) {
1707                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1708                                 SCTP_TCB_UNLOCK(stcb);
1709                         } else {
1710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1712                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1713                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1714                                         SCTP_INP_RLOCK(inp);
1715                                         av->assoc_value = inp->sctp_cmt_on_off;
1716                                         SCTP_INP_RUNLOCK(inp);
1717                                 } else {
1718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1719                                         error = EINVAL;
1720                                 }
1721                         }
1722                         if (error == 0) {
1723                                 *optsize = sizeof(struct sctp_assoc_value);
1724                         }
1725                         break;
1726                 }
1727         case SCTP_PLUGGABLE_CC:
1728                 {
1729                         struct sctp_assoc_value *av;
1730
1731                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1732                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1733                         if (stcb) {
1734                                 av->assoc_value = stcb->asoc.congestion_control_module;
1735                                 SCTP_TCB_UNLOCK(stcb);
1736                         } else {
1737                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1738                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1739                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1740                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1741                                         SCTP_INP_RLOCK(inp);
1742                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1743                                         SCTP_INP_RUNLOCK(inp);
1744                                 } else {
1745                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1746                                         error = EINVAL;
1747                                 }
1748                         }
1749                         if (error == 0) {
1750                                 *optsize = sizeof(struct sctp_assoc_value);
1751                         }
1752                         break;
1753                 }
1754         case SCTP_CC_OPTION:
1755                 {
1756                         struct sctp_cc_option *cc_opt;
1757
1758                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1759                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1760                         if (stcb == NULL) {
1761                                 error = EINVAL;
1762                         } else {
1763                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1764                                         error = ENOTSUP;
1765                                 } else {
1766                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1767                                         *optsize = sizeof(struct sctp_cc_option);
1768                                 }
1769                                 SCTP_TCB_UNLOCK(stcb);
1770                         }
1771                         break;
1772                 }
1773         case SCTP_PLUGGABLE_SS:
1774                 {
1775                         struct sctp_assoc_value *av;
1776
1777                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1778                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1779                         if (stcb) {
1780                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1781                                 SCTP_TCB_UNLOCK(stcb);
1782                         } else {
1783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1785                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1786                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1787                                         SCTP_INP_RLOCK(inp);
1788                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1789                                         SCTP_INP_RUNLOCK(inp);
1790                                 } else {
1791                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1792                                         error = EINVAL;
1793                                 }
1794                         }
1795                         if (error == 0) {
1796                                 *optsize = sizeof(struct sctp_assoc_value);
1797                         }
1798                         break;
1799                 }
1800         case SCTP_SS_VALUE:
1801                 {
1802                         struct sctp_stream_value *av;
1803
1804                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1805                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1806                         if (stcb) {
1807                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1808                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1809                                     &av->stream_value) < 0)) {
1810                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1811                                         error = EINVAL;
1812                                 } else {
1813                                         *optsize = sizeof(struct sctp_stream_value);
1814                                 }
1815                                 SCTP_TCB_UNLOCK(stcb);
1816                         } else {
1817                                 /*
1818                                  * Can't get stream value without
1819                                  * association
1820                                  */
1821                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1822                                 error = EINVAL;
1823                         }
1824                         break;
1825                 }
1826         case SCTP_GET_ADDR_LEN:
1827                 {
1828                         struct sctp_assoc_value *av;
1829
1830                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1831                         error = EINVAL;
1832 #ifdef INET
1833                         if (av->assoc_value == AF_INET) {
1834                                 av->assoc_value = sizeof(struct sockaddr_in);
1835                                 error = 0;
1836                         }
1837 #endif
1838 #ifdef INET6
1839                         if (av->assoc_value == AF_INET6) {
1840                                 av->assoc_value = sizeof(struct sockaddr_in6);
1841                                 error = 0;
1842                         }
1843 #endif
1844                         if (error) {
1845                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1846                         } else {
1847                                 *optsize = sizeof(struct sctp_assoc_value);
1848                         }
1849                         break;
1850                 }
1851         case SCTP_GET_ASSOC_NUMBER:
1852                 {
1853                         uint32_t *value, cnt;
1854
1855                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1856                         SCTP_INP_RLOCK(inp);
1857                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1858                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1859                                 /* Can't do this for a 1-1 socket */
1860                                 error = EINVAL;
1861                                 SCTP_INP_RUNLOCK(inp);
1862                                 break;
1863                         }
1864                         cnt = 0;
1865                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1866                                 cnt++;
1867                         }
1868                         SCTP_INP_RUNLOCK(inp);
1869                         *value = cnt;
1870                         *optsize = sizeof(uint32_t);
1871                         break;
1872                 }
1873         case SCTP_GET_ASSOC_ID_LIST:
1874                 {
1875                         struct sctp_assoc_ids *ids;
1876                         uint32_t at;
1877                         size_t limit;
1878
1879                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1880                         SCTP_INP_RLOCK(inp);
1881                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1882                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1883                                 /* Can't do this for a 1-1 socket */
1884                                 error = EINVAL;
1885                                 SCTP_INP_RUNLOCK(inp);
1886                                 break;
1887                         }
1888                         at = 0;
1889                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1890                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1891                                 if (at < limit) {
1892                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1893                                         if (at == 0) {
1894                                                 error = EINVAL;
1895                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1896                                                 break;
1897                                         }
1898                                 } else {
1899                                         error = EINVAL;
1900                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1901                                         break;
1902                                 }
1903                         }
1904                         SCTP_INP_RUNLOCK(inp);
1905                         if (error == 0) {
1906                                 ids->gaids_number_of_ids = at;
1907                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1908                         }
1909                         break;
1910                 }
1911         case SCTP_CONTEXT:
1912                 {
1913                         struct sctp_assoc_value *av;
1914
1915                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1916                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1917
1918                         if (stcb) {
1919                                 av->assoc_value = stcb->asoc.context;
1920                                 SCTP_TCB_UNLOCK(stcb);
1921                         } else {
1922                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1923                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1924                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1925                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1926                                         SCTP_INP_RLOCK(inp);
1927                                         av->assoc_value = inp->sctp_context;
1928                                         SCTP_INP_RUNLOCK(inp);
1929                                 } else {
1930                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1931                                         error = EINVAL;
1932                                 }
1933                         }
1934                         if (error == 0) {
1935                                 *optsize = sizeof(struct sctp_assoc_value);
1936                         }
1937                         break;
1938                 }
1939         case SCTP_VRF_ID:
1940                 {
1941                         uint32_t *default_vrfid;
1942
1943                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1944                         *default_vrfid = inp->def_vrf_id;
1945                         *optsize = sizeof(uint32_t);
1946                         break;
1947                 }
1948         case SCTP_GET_ASOC_VRF:
1949                 {
1950                         struct sctp_assoc_value *id;
1951
1952                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1953                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1954                         if (stcb == NULL) {
1955                                 error = EINVAL;
1956                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1957                         } else {
1958                                 id->assoc_value = stcb->asoc.vrf_id;
1959                                 SCTP_TCB_UNLOCK(stcb);
1960                                 *optsize = sizeof(struct sctp_assoc_value);
1961                         }
1962                         break;
1963                 }
1964         case SCTP_GET_VRF_IDS:
1965                 {
1966                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1967                         error = EOPNOTSUPP;
1968                         break;
1969                 }
1970         case SCTP_GET_NONCE_VALUES:
1971                 {
1972                         struct sctp_get_nonce_values *gnv;
1973
1974                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1975                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1976
1977                         if (stcb) {
1978                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1979                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1980                                 SCTP_TCB_UNLOCK(stcb);
1981                                 *optsize = sizeof(struct sctp_get_nonce_values);
1982                         } else {
1983                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1984                                 error = ENOTCONN;
1985                         }
1986                         break;
1987                 }
1988         case SCTP_DELAYED_SACK:
1989                 {
1990                         struct sctp_sack_info *sack;
1991
1992                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1993                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1994                         if (stcb) {
1995                                 sack->sack_delay = stcb->asoc.delayed_ack;
1996                                 sack->sack_freq = stcb->asoc.sack_freq;
1997                                 SCTP_TCB_UNLOCK(stcb);
1998                         } else {
1999                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2000                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2001                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2002                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
2003                                         SCTP_INP_RLOCK(inp);
2004                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2005                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2006                                         SCTP_INP_RUNLOCK(inp);
2007                                 } else {
2008                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2009                                         error = EINVAL;
2010                                 }
2011                         }
2012                         if (error == 0) {
2013                                 *optsize = sizeof(struct sctp_sack_info);
2014                         }
2015                         break;
2016                 }
2017         case SCTP_GET_SNDBUF_USE:
2018                 {
2019                         struct sctp_sockstat *ss;
2020
2021                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2022                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2023
2024                         if (stcb) {
2025                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2026                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2027                                     stcb->asoc.size_on_all_streams);
2028                                 SCTP_TCB_UNLOCK(stcb);
2029                                 *optsize = sizeof(struct sctp_sockstat);
2030                         } else {
2031                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2032                                 error = ENOTCONN;
2033                         }
2034                         break;
2035                 }
2036         case SCTP_MAX_BURST:
2037                 {
2038                         struct sctp_assoc_value *av;
2039
2040                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2041                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2042
2043                         if (stcb) {
2044                                 av->assoc_value = stcb->asoc.max_burst;
2045                                 SCTP_TCB_UNLOCK(stcb);
2046                         } else {
2047                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2048                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2049                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2050                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2051                                         SCTP_INP_RLOCK(inp);
2052                                         av->assoc_value = inp->sctp_ep.max_burst;
2053                                         SCTP_INP_RUNLOCK(inp);
2054                                 } else {
2055                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2056                                         error = EINVAL;
2057                                 }
2058                         }
2059                         if (error == 0) {
2060                                 *optsize = sizeof(struct sctp_assoc_value);
2061                         }
2062                         break;
2063                 }
2064         case SCTP_MAXSEG:
2065                 {
2066                         struct sctp_assoc_value *av;
2067                         int ovh;
2068
2069                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2070                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2071
2072                         if (stcb) {
2073                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2074                                 SCTP_TCB_UNLOCK(stcb);
2075                         } else {
2076                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2077                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2078                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2079                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2080                                         SCTP_INP_RLOCK(inp);
2081                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2082                                                 ovh = SCTP_MED_OVERHEAD;
2083                                         } else {
2084                                                 ovh = SCTP_MED_V4_OVERHEAD;
2085                                         }
2086                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2087                                                 av->assoc_value = 0;
2088                                         else
2089                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2090                                         SCTP_INP_RUNLOCK(inp);
2091                                 } else {
2092                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2093                                         error = EINVAL;
2094                                 }
2095                         }
2096                         if (error == 0) {
2097                                 *optsize = sizeof(struct sctp_assoc_value);
2098                         }
2099                         break;
2100                 }
2101         case SCTP_GET_STAT_LOG:
2102                 error = sctp_fill_stat_log(optval, optsize);
2103                 break;
2104         case SCTP_EVENTS:
2105                 {
2106                         struct sctp_event_subscribe *events;
2107
2108                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2109                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2110                         SCTP_INP_RLOCK(inp);
2111                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2112                                 events->sctp_data_io_event = 1;
2113
2114                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2115                                 events->sctp_association_event = 1;
2116
2117                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2118                                 events->sctp_address_event = 1;
2119
2120                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2121                                 events->sctp_send_failure_event = 1;
2122
2123                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2124                                 events->sctp_peer_error_event = 1;
2125
2126                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2127                                 events->sctp_shutdown_event = 1;
2128
2129                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2130                                 events->sctp_partial_delivery_event = 1;
2131
2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2133                                 events->sctp_adaptation_layer_event = 1;
2134
2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2136                                 events->sctp_authentication_event = 1;
2137
2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2139                                 events->sctp_sender_dry_event = 1;
2140
2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2142                                 events->sctp_stream_reset_event = 1;
2143                         SCTP_INP_RUNLOCK(inp);
2144                         *optsize = sizeof(struct sctp_event_subscribe);
2145                         break;
2146                 }
2147         case SCTP_ADAPTATION_LAYER:
2148                 {
2149                         uint32_t *value;
2150
2151                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2152
2153                         SCTP_INP_RLOCK(inp);
2154                         *value = inp->sctp_ep.adaptation_layer_indicator;
2155                         SCTP_INP_RUNLOCK(inp);
2156                         *optsize = sizeof(uint32_t);
2157                         break;
2158                 }
2159         case SCTP_SET_INITIAL_DBG_SEQ:
2160                 {
2161                         uint32_t *value;
2162
2163                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2164                         SCTP_INP_RLOCK(inp);
2165                         *value = inp->sctp_ep.initial_sequence_debug;
2166                         SCTP_INP_RUNLOCK(inp);
2167                         *optsize = sizeof(uint32_t);
2168                         break;
2169                 }
2170         case SCTP_GET_LOCAL_ADDR_SIZE:
2171                 {
2172                         uint32_t *value;
2173
2174                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2175                         SCTP_INP_RLOCK(inp);
2176                         *value = sctp_count_max_addresses(inp);
2177                         SCTP_INP_RUNLOCK(inp);
2178                         *optsize = sizeof(uint32_t);
2179                         break;
2180                 }
2181         case SCTP_GET_REMOTE_ADDR_SIZE:
2182                 {
2183                         uint32_t *value;
2184                         size_t size;
2185                         struct sctp_nets *net;
2186
2187                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2188                         /* FIXME MT: change to sctp_assoc_value? */
2189                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2190
2191                         if (stcb) {
2192                                 size = 0;
2193                                 /* Count the sizes */
2194                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2195                                         switch (net->ro._l_addr.sa.sa_family) {
2196 #ifdef INET
2197                                         case AF_INET:
2198 #ifdef INET6
2199                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2200                                                         size += sizeof(struct sockaddr_in6);
2201                                                 } else {
2202                                                         size += sizeof(struct sockaddr_in);
2203                                                 }
2204 #else
2205                                                 size += sizeof(struct sockaddr_in);
2206 #endif
2207                                                 break;
2208 #endif
2209 #ifdef INET6
2210                                         case AF_INET6:
2211                                                 size += sizeof(struct sockaddr_in6);
2212                                                 break;
2213 #endif
2214                                         default:
2215                                                 break;
2216                                         }
2217                                 }
2218                                 SCTP_TCB_UNLOCK(stcb);
2219                                 *value = (uint32_t)size;
2220                                 *optsize = sizeof(uint32_t);
2221                         } else {
2222                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2223                                 error = ENOTCONN;
2224                         }
2225                         break;
2226                 }
2227         case SCTP_GET_PEER_ADDRESSES:
2228                 /*
2229                  * Get the address information, an array is passed in to
2230                  * fill up we pack it.
2231                  */
2232                 {
2233                         size_t cpsz, left;
2234                         struct sockaddr_storage *sas;
2235                         struct sctp_nets *net;
2236                         struct sctp_getaddresses *saddr;
2237
2238                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2239                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2240
2241                         if (stcb) {
2242                                 left = (*optsize) - sizeof(sctp_assoc_t);
2243                                 *optsize = sizeof(sctp_assoc_t);
2244                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2245
2246                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2247                                         switch (net->ro._l_addr.sa.sa_family) {
2248 #ifdef INET
2249                                         case AF_INET:
2250 #ifdef INET6
2251                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2252                                                         cpsz = sizeof(struct sockaddr_in6);
2253                                                 } else {
2254                                                         cpsz = sizeof(struct sockaddr_in);
2255                                                 }
2256 #else
2257                                                 cpsz = sizeof(struct sockaddr_in);
2258 #endif
2259                                                 break;
2260 #endif
2261 #ifdef INET6
2262                                         case AF_INET6:
2263                                                 cpsz = sizeof(struct sockaddr_in6);
2264                                                 break;
2265 #endif
2266                                         default:
2267                                                 cpsz = 0;
2268                                                 break;
2269                                         }
2270                                         if (cpsz == 0) {
2271                                                 break;
2272                                         }
2273                                         if (left < cpsz) {
2274                                                 /* not enough room. */
2275                                                 break;
2276                                         }
2277 #if defined(INET) && defined(INET6)
2278                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2279                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2280                                                 /* Must map the address */
2281                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2282                                                     (struct sockaddr_in6 *)sas);
2283                                         } else {
2284                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2285                                         }
2286 #else
2287                                         memcpy(sas, &net->ro._l_addr, cpsz);
2288 #endif
2289                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2290
2291                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2292                                         left -= cpsz;
2293                                         *optsize += cpsz;
2294                                 }
2295                                 SCTP_TCB_UNLOCK(stcb);
2296                         } else {
2297                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2298                                 error = ENOENT;
2299                         }
2300                         break;
2301                 }
2302         case SCTP_GET_LOCAL_ADDRESSES:
2303                 {
2304                         size_t limit, actual;
2305                         struct sockaddr_storage *sas;
2306                         struct sctp_getaddresses *saddr;
2307
2308                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2309                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2310
2311                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2312                         limit = *optsize - sizeof(sctp_assoc_t);
2313                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2314                         if (stcb) {
2315                                 SCTP_TCB_UNLOCK(stcb);
2316                         }
2317                         *optsize = sizeof(sctp_assoc_t) + actual;
2318                         break;
2319                 }
2320         case SCTP_PEER_ADDR_PARAMS:
2321                 {
2322                         struct sctp_paddrparams *paddrp;
2323                         struct sctp_nets *net;
2324                         struct sockaddr *addr;
2325 #if defined(INET) && defined(INET6)
2326                         struct sockaddr_in sin_store;
2327 #endif
2328
2329                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2330                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2331
2332 #if defined(INET) && defined(INET6)
2333                         if (paddrp->spp_address.ss_family == AF_INET6) {
2334                                 struct sockaddr_in6 *sin6;
2335
2336                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2337                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2338                                         in6_sin6_2_sin(&sin_store, sin6);
2339                                         addr = (struct sockaddr *)&sin_store;
2340                                 } else {
2341                                         addr = (struct sockaddr *)&paddrp->spp_address;
2342                                 }
2343                         } else {
2344                                 addr = (struct sockaddr *)&paddrp->spp_address;
2345                         }
2346 #else
2347                         addr = (struct sockaddr *)&paddrp->spp_address;
2348 #endif
2349                         if (stcb != NULL) {
2350                                 net = sctp_findnet(stcb, addr);
2351                         } else {
2352                                 /*
2353                                  * We increment here since
2354                                  * sctp_findassociation_ep_addr() wil do a
2355                                  * decrement if it finds the stcb as long as
2356                                  * the locked tcb (last argument) is NOT a
2357                                  * TCB.. aka NULL.
2358                                  */
2359                                 net = NULL;
2360                                 SCTP_INP_INCR_REF(inp);
2361                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2362                                 if (stcb == NULL) {
2363                                         SCTP_INP_DECR_REF(inp);
2364                                 }
2365                         }
2366                         if ((stcb != NULL) && (net == NULL)) {
2367 #ifdef INET
2368                                 if (addr->sa_family == AF_INET) {
2369                                         struct sockaddr_in *sin;
2370
2371                                         sin = (struct sockaddr_in *)addr;
2372                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2373                                                 error = EINVAL;
2374                                                 SCTP_TCB_UNLOCK(stcb);
2375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2376                                                 break;
2377                                         }
2378                                 } else
2379 #endif
2380 #ifdef INET6
2381                                 if (addr->sa_family == AF_INET6) {
2382                                         struct sockaddr_in6 *sin6;
2383
2384                                         sin6 = (struct sockaddr_in6 *)addr;
2385                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2386                                                 error = EINVAL;
2387                                                 SCTP_TCB_UNLOCK(stcb);
2388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2389                                                 break;
2390                                         }
2391                                 } else
2392 #endif
2393                                 {
2394                                         error = EAFNOSUPPORT;
2395                                         SCTP_TCB_UNLOCK(stcb);
2396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2397                                         break;
2398                                 }
2399                         }
2400
2401                         if (stcb != NULL) {
2402                                 /* Applies to the specific association */
2403                                 paddrp->spp_flags = 0;
2404                                 if (net != NULL) {
2405                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2406                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2407                                         paddrp->spp_pathmtu = net->mtu;
2408                                         switch (net->ro._l_addr.sa.sa_family) {
2409 #ifdef INET
2410                                         case AF_INET:
2411                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2412                                                 break;
2413 #endif
2414 #ifdef INET6
2415                                         case AF_INET6:
2416                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2417                                                 break;
2418 #endif
2419                                         default:
2420                                                 break;
2421                                         }
2422                                         /* get flags for HB */
2423                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2424                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2425                                         } else {
2426                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2427                                         }
2428                                         /* get flags for PMTU */
2429                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2430                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2431                                         } else {
2432                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2433                                         }
2434                                         if (net->dscp & 0x01) {
2435                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2436                                                 paddrp->spp_flags |= SPP_DSCP;
2437                                         }
2438 #ifdef INET6
2439                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2440                                             (net->flowlabel & 0x80000000)) {
2441                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2442                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2443                                         }
2444 #endif
2445                                 } else {
2446                                         /*
2447                                          * No destination so return default
2448                                          * value
2449                                          */
2450                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2451                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2452                                         if (stcb->asoc.default_dscp & 0x01) {
2453                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2454                                                 paddrp->spp_flags |= SPP_DSCP;
2455                                         }
2456 #ifdef INET6
2457                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2458                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2459                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2460                                         }
2461 #endif
2462                                         /* default settings should be these */
2463                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2464                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2465                                         } else {
2466                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2467                                         }
2468                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2469                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2470                                         } else {
2471                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2472                                         }
2473                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2474                                 }
2475                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2476                                 SCTP_TCB_UNLOCK(stcb);
2477                         } else {
2478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2480                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2481                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2482                                         /* Use endpoint defaults */
2483                                         SCTP_INP_RLOCK(inp);
2484                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2485                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2486                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2487                                         /* get inp's default */
2488                                         if (inp->sctp_ep.default_dscp & 0x01) {
2489                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2490                                                 paddrp->spp_flags |= SPP_DSCP;
2491                                         }
2492 #ifdef INET6
2493                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2494                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2495                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2496                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2497                                         }
2498 #endif
2499                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2500
2501                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2502                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2503                                         } else {
2504                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2505                                         }
2506                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2507                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2508                                         } else {
2509                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2510                                         }
2511                                         SCTP_INP_RUNLOCK(inp);
2512                                 } else {
2513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2514                                         error = EINVAL;
2515                                 }
2516                         }
2517                         if (error == 0) {
2518                                 *optsize = sizeof(struct sctp_paddrparams);
2519                         }
2520                         break;
2521                 }
2522         case SCTP_GET_PEER_ADDR_INFO:
2523                 {
2524                         struct sctp_paddrinfo *paddri;
2525                         struct sctp_nets *net;
2526                         struct sockaddr *addr;
2527 #if defined(INET) && defined(INET6)
2528                         struct sockaddr_in sin_store;
2529 #endif
2530
2531                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2532                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2533
2534 #if defined(INET) && defined(INET6)
2535                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2536                                 struct sockaddr_in6 *sin6;
2537
2538                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2539                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2540                                         in6_sin6_2_sin(&sin_store, sin6);
2541                                         addr = (struct sockaddr *)&sin_store;
2542                                 } else {
2543                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2544                                 }
2545                         } else {
2546                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2547                         }
2548 #else
2549                         addr = (struct sockaddr *)&paddri->spinfo_address;
2550 #endif
2551                         if (stcb != NULL) {
2552                                 net = sctp_findnet(stcb, addr);
2553                         } else {
2554                                 /*
2555                                  * We increment here since
2556                                  * sctp_findassociation_ep_addr() wil do a
2557                                  * decrement if it finds the stcb as long as
2558                                  * the locked tcb (last argument) is NOT a
2559                                  * TCB.. aka NULL.
2560                                  */
2561                                 net = NULL;
2562                                 SCTP_INP_INCR_REF(inp);
2563                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2564                                 if (stcb == NULL) {
2565                                         SCTP_INP_DECR_REF(inp);
2566                                 }
2567                         }
2568
2569                         if ((stcb != NULL) && (net != NULL)) {
2570                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2571                                         /* It's unconfirmed */
2572                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2573                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2574                                         /* It's active */
2575                                         paddri->spinfo_state = SCTP_ACTIVE;
2576                                 } else {
2577                                         /* It's inactive */
2578                                         paddri->spinfo_state = SCTP_INACTIVE;
2579                                 }
2580                                 paddri->spinfo_cwnd = net->cwnd;
2581                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2582                                 paddri->spinfo_rto = net->RTO;
2583                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2584                                 paddri->spinfo_mtu = net->mtu;
2585                                 switch (addr->sa_family) {
2586 #if defined(INET)
2587                                 case AF_INET:
2588                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2589                                         break;
2590 #endif
2591 #if defined(INET6)
2592                                 case AF_INET6:
2593                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2594                                         break;
2595 #endif
2596                                 default:
2597                                         break;
2598                                 }
2599                                 SCTP_TCB_UNLOCK(stcb);
2600                                 *optsize = sizeof(struct sctp_paddrinfo);
2601                         } else {
2602                                 if (stcb != NULL) {
2603                                         SCTP_TCB_UNLOCK(stcb);
2604                                 }
2605                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2606                                 error = ENOENT;
2607                         }
2608                         break;
2609                 }
2610         case SCTP_PCB_STATUS:
2611                 {
2612                         struct sctp_pcbinfo *spcb;
2613
2614                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2615                         sctp_fill_pcbinfo(spcb);
2616                         *optsize = sizeof(struct sctp_pcbinfo);
2617                         break;
2618                 }
2619         case SCTP_STATUS:
2620                 {
2621                         struct sctp_nets *net;
2622                         struct sctp_status *sstat;
2623
2624                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2625                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2626
2627                         if (stcb == NULL) {
2628                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2629                                 error = EINVAL;
2630                                 break;
2631                         }
2632                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2633                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2634                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2635                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2636                         /*
2637                          * We can't include chunks that have been passed to
2638                          * the socket layer. Only things in queue.
2639                          */
2640                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2641                             stcb->asoc.cnt_on_all_streams);
2642
2643
2644                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2645                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2646                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2647                         net = stcb->asoc.primary_destination;
2648                         if (net != NULL) {
2649                                 memcpy(&sstat->sstat_primary.spinfo_address,
2650                                     &stcb->asoc.primary_destination->ro._l_addr,
2651                                     ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2652                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2653                                 /*
2654                                  * Again the user can get info from
2655                                  * sctp_constants.h for what the state of
2656                                  * the network is.
2657                                  */
2658                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2659                                         /* It's unconfirmed */
2660                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2661                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2662                                         /* It's active */
2663                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2664                                 } else {
2665                                         /* It's inactive */
2666                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2667                                 }
2668                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2669                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2670                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2671                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2672                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2673 #if defined(INET)
2674                                 case AF_INET:
2675                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2676                                         break;
2677 #endif
2678 #if defined(INET6)
2679                                 case AF_INET6:
2680                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2681                                         break;
2682 #endif
2683                                 default:
2684                                         break;
2685                                 }
2686                         } else {
2687                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2688                         }
2689                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2690                         SCTP_TCB_UNLOCK(stcb);
2691                         *optsize = sizeof(struct sctp_status);
2692                         break;
2693                 }
2694         case SCTP_RTOINFO:
2695                 {
2696                         struct sctp_rtoinfo *srto;
2697
2698                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2699                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2700
2701                         if (stcb) {
2702                                 srto->srto_initial = stcb->asoc.initial_rto;
2703                                 srto->srto_max = stcb->asoc.maxrto;
2704                                 srto->srto_min = stcb->asoc.minrto;
2705                                 SCTP_TCB_UNLOCK(stcb);
2706                         } else {
2707                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2708                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2709                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2710                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2711                                         SCTP_INP_RLOCK(inp);
2712                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2713                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2714                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2715                                         SCTP_INP_RUNLOCK(inp);
2716                                 } else {
2717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2718                                         error = EINVAL;
2719                                 }
2720                         }
2721                         if (error == 0) {
2722                                 *optsize = sizeof(struct sctp_rtoinfo);
2723                         }
2724                         break;
2725                 }
2726         case SCTP_TIMEOUTS:
2727                 {
2728                         struct sctp_timeouts *stimo;
2729
2730                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2731                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2732
2733                         if (stcb) {
2734                                 stimo->stimo_init = stcb->asoc.timoinit;
2735                                 stimo->stimo_data = stcb->asoc.timodata;
2736                                 stimo->stimo_sack = stcb->asoc.timosack;
2737                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2738                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2739                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2740                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2741                                 SCTP_TCB_UNLOCK(stcb);
2742                                 *optsize = sizeof(struct sctp_timeouts);
2743                         } else {
2744                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2745                                 error = EINVAL;
2746                         }
2747                         break;
2748                 }
2749         case SCTP_ASSOCINFO:
2750                 {
2751                         struct sctp_assocparams *sasoc;
2752
2753                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2754                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2755
2756                         if (stcb) {
2757                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2758                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2759                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2760                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2761                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2762                                 SCTP_TCB_UNLOCK(stcb);
2763                         } else {
2764                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2765                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2766                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2767                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2768                                         SCTP_INP_RLOCK(inp);
2769                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2770                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2771                                         sasoc->sasoc_number_peer_destinations = 0;
2772                                         sasoc->sasoc_peer_rwnd = 0;
2773                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2774                                         SCTP_INP_RUNLOCK(inp);
2775                                 } else {
2776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2777                                         error = EINVAL;
2778                                 }
2779                         }
2780                         if (error == 0) {
2781                                 *optsize = sizeof(struct sctp_assocparams);
2782                         }
2783                         break;
2784                 }
2785         case SCTP_DEFAULT_SEND_PARAM:
2786                 {
2787                         struct sctp_sndrcvinfo *s_info;
2788
2789                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2790                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2791
2792                         if (stcb) {
2793                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2794                                 SCTP_TCB_UNLOCK(stcb);
2795                         } else {
2796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2798                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2799                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2800                                         SCTP_INP_RLOCK(inp);
2801                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2802                                         SCTP_INP_RUNLOCK(inp);
2803                                 } else {
2804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2805                                         error = EINVAL;
2806                                 }
2807                         }
2808                         if (error == 0) {
2809                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2810                         }
2811                         break;
2812                 }
2813         case SCTP_INITMSG:
2814                 {
2815                         struct sctp_initmsg *sinit;
2816
2817                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2818                         SCTP_INP_RLOCK(inp);
2819                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2820                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2821                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2822                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2823                         SCTP_INP_RUNLOCK(inp);
2824                         *optsize = sizeof(struct sctp_initmsg);
2825                         break;
2826                 }
2827         case SCTP_PRIMARY_ADDR:
2828                 /* we allow a "get" operation on this */
2829                 {
2830                         struct sctp_setprim *ssp;
2831
2832                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2833                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2834
2835                         if (stcb) {
2836                                 union sctp_sockstore *addr;
2837
2838                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2839                                 switch (addr->sa.sa_family) {
2840 #ifdef INET
2841                                 case AF_INET:
2842 #ifdef INET6
2843                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2844                                                 in6_sin_2_v4mapsin6(&addr->sin,
2845                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2846                                         } else {
2847                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2848                                         }
2849 #else
2850                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2851 #endif
2852                                         break;
2853 #endif
2854 #ifdef INET6
2855                                 case AF_INET6:
2856                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2857                                         break;
2858 #endif
2859                                 default:
2860                                         break;
2861                                 }
2862                                 SCTP_TCB_UNLOCK(stcb);
2863                                 *optsize = sizeof(struct sctp_setprim);
2864                         } else {
2865                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2866                                 error = EINVAL;
2867                         }
2868                         break;
2869                 }
2870         case SCTP_HMAC_IDENT:
2871                 {
2872                         struct sctp_hmacalgo *shmac;
2873                         sctp_hmaclist_t *hmaclist;
2874                         uint32_t size;
2875                         int i;
2876
2877                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2878
2879                         SCTP_INP_RLOCK(inp);
2880                         hmaclist = inp->sctp_ep.local_hmacs;
2881                         if (hmaclist == NULL) {
2882                                 /* no HMACs to return */
2883                                 *optsize = sizeof(*shmac);
2884                                 SCTP_INP_RUNLOCK(inp);
2885                                 break;
2886                         }
2887                         /* is there room for all of the hmac ids? */
2888                         size = sizeof(*shmac) + (hmaclist->num_algo *
2889                             sizeof(shmac->shmac_idents[0]));
2890                         if ((size_t)(*optsize) < size) {
2891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2892                                 error = EINVAL;
2893                                 SCTP_INP_RUNLOCK(inp);
2894                                 break;
2895                         }
2896                         /* copy in the list */
2897                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2898                         for (i = 0; i < hmaclist->num_algo; i++) {
2899                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2900                         }
2901                         SCTP_INP_RUNLOCK(inp);
2902                         *optsize = size;
2903                         break;
2904                 }
2905         case SCTP_AUTH_ACTIVE_KEY:
2906                 {
2907                         struct sctp_authkeyid *scact;
2908
2909                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2910                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2911
2912                         if (stcb) {
2913                                 /* get the active key on the assoc */
2914                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2915                                 SCTP_TCB_UNLOCK(stcb);
2916                         } else {
2917                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2918                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2919                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2920                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2921                                         /* get the endpoint active key */
2922                                         SCTP_INP_RLOCK(inp);
2923                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2924                                         SCTP_INP_RUNLOCK(inp);
2925                                 } else {
2926                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2927                                         error = EINVAL;
2928                                 }
2929                         }
2930                         if (error == 0) {
2931                                 *optsize = sizeof(struct sctp_authkeyid);
2932                         }
2933                         break;
2934                 }
2935         case SCTP_LOCAL_AUTH_CHUNKS:
2936                 {
2937                         struct sctp_authchunks *sac;
2938                         sctp_auth_chklist_t *chklist = NULL;
2939                         size_t size = 0;
2940
2941                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2942                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2943
2944                         if (stcb) {
2945                                 /* get off the assoc */
2946                                 chklist = stcb->asoc.local_auth_chunks;
2947                                 /* is there enough space? */
2948                                 size = sctp_auth_get_chklist_size(chklist);
2949                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2950                                         error = EINVAL;
2951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2952                                 } else {
2953                                         /* copy in the chunks */
2954                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2955                                         sac->gauth_number_of_chunks = (uint32_t)size;
2956                                         *optsize = sizeof(struct sctp_authchunks) + size;
2957                                 }
2958                                 SCTP_TCB_UNLOCK(stcb);
2959                         } else {
2960                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2961                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2962                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2963                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2964                                         /* get off the endpoint */
2965                                         SCTP_INP_RLOCK(inp);
2966                                         chklist = inp->sctp_ep.local_auth_chunks;
2967                                         /* is there enough space? */
2968                                         size = sctp_auth_get_chklist_size(chklist);
2969                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2970                                                 error = EINVAL;
2971                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2972                                         } else {
2973                                                 /* copy in the chunks */
2974                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2975                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2976                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2977                                         }
2978                                         SCTP_INP_RUNLOCK(inp);
2979                                 } else {
2980                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2981                                         error = EINVAL;
2982                                 }
2983                         }
2984                         break;
2985                 }
2986         case SCTP_PEER_AUTH_CHUNKS:
2987                 {
2988                         struct sctp_authchunks *sac;
2989                         sctp_auth_chklist_t *chklist = NULL;
2990                         size_t size = 0;
2991
2992                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2993                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2994
2995                         if (stcb) {
2996                                 /* get off the assoc */
2997                                 chklist = stcb->asoc.peer_auth_chunks;
2998                                 /* is there enough space? */
2999                                 size = sctp_auth_get_chklist_size(chklist);
3000                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3001                                         error = EINVAL;
3002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3003                                 } else {
3004                                         /* copy in the chunks */
3005                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3006                                         sac->gauth_number_of_chunks = (uint32_t)size;
3007                                         *optsize = sizeof(struct sctp_authchunks) + size;
3008                                 }
3009                                 SCTP_TCB_UNLOCK(stcb);
3010                         } else {
3011                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3012                                 error = ENOENT;
3013                         }
3014                         break;
3015                 }
3016         case SCTP_EVENT:
3017                 {
3018                         struct sctp_event *event;
3019                         uint32_t event_type;
3020
3021                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3022                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3023
3024                         switch (event->se_type) {
3025                         case SCTP_ASSOC_CHANGE:
3026                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3027                                 break;
3028                         case SCTP_PEER_ADDR_CHANGE:
3029                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3030                                 break;
3031                         case SCTP_REMOTE_ERROR:
3032                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3033                                 break;
3034                         case SCTP_SEND_FAILED:
3035                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3036                                 break;
3037                         case SCTP_SHUTDOWN_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3039                                 break;
3040                         case SCTP_ADAPTATION_INDICATION:
3041                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3042                                 break;
3043                         case SCTP_PARTIAL_DELIVERY_EVENT:
3044                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3045                                 break;
3046                         case SCTP_AUTHENTICATION_EVENT:
3047                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3048                                 break;
3049                         case SCTP_STREAM_RESET_EVENT:
3050                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3051                                 break;
3052                         case SCTP_SENDER_DRY_EVENT:
3053                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3054                                 break;
3055                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3056                                 event_type = 0;
3057                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3058                                 error = ENOTSUP;
3059                                 break;
3060                         case SCTP_ASSOC_RESET_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3062                                 break;
3063                         case SCTP_STREAM_CHANGE_EVENT:
3064                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3065                                 break;
3066                         case SCTP_SEND_FAILED_EVENT:
3067                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3068                                 break;
3069                         default:
3070                                 event_type = 0;
3071                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3072                                 error = EINVAL;
3073                                 break;
3074                         }
3075                         if (event_type > 0) {
3076                                 if (stcb) {
3077                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3078                                 } else {
3079                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3080                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3081                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3082                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3083                                                 SCTP_INP_RLOCK(inp);
3084                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3085                                                 SCTP_INP_RUNLOCK(inp);
3086                                         } else {
3087                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3088                                                 error = EINVAL;
3089                                         }
3090                                 }
3091                         }
3092                         if (stcb != NULL) {
3093                                 SCTP_TCB_UNLOCK(stcb);
3094                         }
3095                         if (error == 0) {
3096                                 *optsize = sizeof(struct sctp_event);
3097                         }
3098                         break;
3099                 }
3100         case SCTP_RECVRCVINFO:
3101                 {
3102                         int onoff;
3103
3104                         if (*optsize < sizeof(int)) {
3105                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3106                                 error = EINVAL;
3107                         } else {
3108                                 SCTP_INP_RLOCK(inp);
3109                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3110                                 SCTP_INP_RUNLOCK(inp);
3111                         }
3112                         if (error == 0) {
3113                                 /* return the option value */
3114                                 *(int *)optval = onoff;
3115                                 *optsize = sizeof(int);
3116                         }
3117                         break;
3118                 }
3119         case SCTP_RECVNXTINFO:
3120                 {
3121                         int onoff;
3122
3123                         if (*optsize < sizeof(int)) {
3124                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3125                                 error = EINVAL;
3126                         } else {
3127                                 SCTP_INP_RLOCK(inp);
3128                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3129                                 SCTP_INP_RUNLOCK(inp);
3130                         }
3131                         if (error == 0) {
3132                                 /* return the option value */
3133                                 *(int *)optval = onoff;
3134                                 *optsize = sizeof(int);
3135                         }
3136                         break;
3137                 }
3138         case SCTP_DEFAULT_SNDINFO:
3139                 {
3140                         struct sctp_sndinfo *info;
3141
3142                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3143                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3144
3145                         if (stcb) {
3146                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3147                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3148                                 info->snd_flags &= 0xfff0;
3149                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3150                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3151                                 SCTP_TCB_UNLOCK(stcb);
3152                         } else {
3153                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3154                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3155                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3156                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3157                                         SCTP_INP_RLOCK(inp);
3158                                         info->snd_sid = inp->def_send.sinfo_stream;
3159                                         info->snd_flags = inp->def_send.sinfo_flags;
3160                                         info->snd_flags &= 0xfff0;
3161                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3162                                         info->snd_context = inp->def_send.sinfo_context;
3163                                         SCTP_INP_RUNLOCK(inp);
3164                                 } else {
3165                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3166                                         error = EINVAL;
3167                                 }
3168                         }
3169                         if (error == 0) {
3170                                 *optsize = sizeof(struct sctp_sndinfo);
3171                         }
3172                         break;
3173                 }
3174         case SCTP_DEFAULT_PRINFO:
3175                 {
3176                         struct sctp_default_prinfo *info;
3177
3178                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3179                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3180
3181                         if (stcb) {
3182                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3183                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3184                                 SCTP_TCB_UNLOCK(stcb);
3185                         } else {
3186                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3187                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3188                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3189                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3190                                         SCTP_INP_RLOCK(inp);
3191                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3192                                         info->pr_value = inp->def_send.sinfo_timetolive;
3193                                         SCTP_INP_RUNLOCK(inp);
3194                                 } else {
3195                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3196                                         error = EINVAL;
3197                                 }
3198                         }
3199                         if (error == 0) {
3200                                 *optsize = sizeof(struct sctp_default_prinfo);
3201                         }
3202                         break;
3203                 }
3204         case SCTP_PEER_ADDR_THLDS:
3205                 {
3206                         struct sctp_paddrthlds *thlds;
3207                         struct sctp_nets *net;
3208                         struct sockaddr *addr;
3209 #if defined(INET) && defined(INET6)
3210                         struct sockaddr_in sin_store;
3211 #endif
3212
3213                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3214                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3215
3216 #if defined(INET) && defined(INET6)
3217                         if (thlds->spt_address.ss_family == AF_INET6) {
3218                                 struct sockaddr_in6 *sin6;
3219
3220                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3221                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3222                                         in6_sin6_2_sin(&sin_store, sin6);
3223                                         addr = (struct sockaddr *)&sin_store;
3224                                 } else {
3225                                         addr = (struct sockaddr *)&thlds->spt_address;
3226                                 }
3227                         } else {
3228                                 addr = (struct sockaddr *)&thlds->spt_address;
3229                         }
3230 #else
3231                         addr = (struct sockaddr *)&thlds->spt_address;
3232 #endif
3233                         if (stcb != NULL) {
3234                                 net = sctp_findnet(stcb, addr);
3235                         } else {
3236                                 /*
3237                                  * We increment here since
3238                                  * sctp_findassociation_ep_addr() wil do a
3239                                  * decrement if it finds the stcb as long as
3240                                  * the locked tcb (last argument) is NOT a
3241                                  * TCB.. aka NULL.
3242                                  */
3243                                 net = NULL;
3244                                 SCTP_INP_INCR_REF(inp);
3245                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3246                                 if (stcb == NULL) {
3247                                         SCTP_INP_DECR_REF(inp);
3248                                 }
3249                         }
3250                         if ((stcb != NULL) && (net == NULL)) {
3251 #ifdef INET
3252                                 if (addr->sa_family == AF_INET) {
3253                                         struct sockaddr_in *sin;
3254
3255                                         sin = (struct sockaddr_in *)addr;
3256                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3257                                                 error = EINVAL;
3258                                                 SCTP_TCB_UNLOCK(stcb);
3259                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3260                                                 break;
3261                                         }
3262                                 } else
3263 #endif
3264 #ifdef INET6
3265                                 if (addr->sa_family == AF_INET6) {
3266                                         struct sockaddr_in6 *sin6;
3267
3268                                         sin6 = (struct sockaddr_in6 *)addr;
3269                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3270                                                 error = EINVAL;
3271                                                 SCTP_TCB_UNLOCK(stcb);
3272                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3273                                                 break;
3274                                         }
3275                                 } else
3276 #endif
3277                                 {
3278                                         error = EAFNOSUPPORT;
3279                                         SCTP_TCB_UNLOCK(stcb);
3280                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3281                                         break;
3282                                 }
3283                         }
3284
3285                         if (stcb != NULL) {
3286                                 if (net != NULL) {
3287                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3288                                         thlds->spt_pathpfthld = net->pf_threshold;
3289                                         thlds->spt_pathcpthld = 0xffff;
3290                                 } else {
3291                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3292                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3293                                         thlds->spt_pathcpthld = 0xffff;
3294                                 }
3295                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3296                                 SCTP_TCB_UNLOCK(stcb);
3297                         } else {
3298                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3299                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3300                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3301                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3302                                         /* Use endpoint defaults */
3303                                         SCTP_INP_RLOCK(inp);
3304                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3305                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3306                                         thlds->spt_pathcpthld = 0xffff;
3307                                         SCTP_INP_RUNLOCK(inp);
3308                                 } else {
3309                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3310                                         error = EINVAL;
3311                                 }
3312                         }
3313                         if (error == 0) {
3314                                 *optsize = sizeof(struct sctp_paddrthlds);
3315                         }
3316                         break;
3317                 }
3318         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3319                 {
3320                         struct sctp_udpencaps *encaps;
3321                         struct sctp_nets *net;
3322                         struct sockaddr *addr;
3323 #if defined(INET) && defined(INET6)
3324                         struct sockaddr_in sin_store;
3325 #endif
3326
3327                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3328                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3329
3330 #if defined(INET) && defined(INET6)
3331                         if (encaps->sue_address.ss_family == AF_INET6) {
3332                                 struct sockaddr_in6 *sin6;
3333
3334                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3335                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3336                                         in6_sin6_2_sin(&sin_store, sin6);
3337                                         addr = (struct sockaddr *)&sin_store;
3338                                 } else {
3339                                         addr = (struct sockaddr *)&encaps->sue_address;
3340                                 }
3341                         } else {
3342                                 addr = (struct sockaddr *)&encaps->sue_address;
3343                         }
3344 #else
3345                         addr = (struct sockaddr *)&encaps->sue_address;
3346 #endif
3347                         if (stcb) {
3348                                 net = sctp_findnet(stcb, addr);
3349                         } else {
3350                                 /*
3351                                  * We increment here since
3352                                  * sctp_findassociation_ep_addr() wil do a
3353                                  * decrement if it finds the stcb as long as
3354                                  * the locked tcb (last argument) is NOT a
3355                                  * TCB.. aka NULL.
3356                                  */
3357                                 net = NULL;
3358                                 SCTP_INP_INCR_REF(inp);
3359                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3360                                 if (stcb == NULL) {
3361                                         SCTP_INP_DECR_REF(inp);
3362                                 }
3363                         }
3364                         if ((stcb != NULL) && (net == NULL)) {
3365 #ifdef INET
3366                                 if (addr->sa_family == AF_INET) {
3367                                         struct sockaddr_in *sin;
3368
3369                                         sin = (struct sockaddr_in *)addr;
3370                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3371                                                 error = EINVAL;
3372                                                 SCTP_TCB_UNLOCK(stcb);
3373                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3374                                                 break;
3375                                         }
3376                                 } else
3377 #endif
3378 #ifdef INET6
3379                                 if (addr->sa_family == AF_INET6) {
3380                                         struct sockaddr_in6 *sin6;
3381
3382                                         sin6 = (struct sockaddr_in6 *)addr;
3383                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3384                                                 error = EINVAL;
3385                                                 SCTP_TCB_UNLOCK(stcb);
3386                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3387                                                 break;
3388                                         }
3389                                 } else
3390 #endif
3391                                 {
3392                                         error = EAFNOSUPPORT;
3393                                         SCTP_TCB_UNLOCK(stcb);
3394                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3395                                         break;
3396                                 }
3397                         }
3398
3399                         if (stcb != NULL) {
3400                                 if (net) {
3401                                         encaps->sue_port = net->port;
3402                                 } else {
3403                                         encaps->sue_port = stcb->asoc.port;
3404                                 }
3405                                 SCTP_TCB_UNLOCK(stcb);
3406                         } else {
3407                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3408                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3409                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3410                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3411                                         SCTP_INP_RLOCK(inp);
3412                                         encaps->sue_port = inp->sctp_ep.port;
3413                                         SCTP_INP_RUNLOCK(inp);
3414                                 } else {
3415                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3416                                         error = EINVAL;
3417                                 }
3418                         }
3419                         if (error == 0) {
3420                                 *optsize = sizeof(struct sctp_udpencaps);
3421                         }
3422                         break;
3423                 }
3424         case SCTP_ECN_SUPPORTED:
3425                 {
3426                         struct sctp_assoc_value *av;
3427
3428                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3429                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3430
3431                         if (stcb) {
3432                                 av->assoc_value = stcb->asoc.ecn_supported;
3433                                 SCTP_TCB_UNLOCK(stcb);
3434                         } else {
3435                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3436                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3437                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3438                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3439                                         SCTP_INP_RLOCK(inp);
3440                                         av->assoc_value = inp->ecn_supported;
3441                                         SCTP_INP_RUNLOCK(inp);
3442                                 } else {
3443                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3444                                         error = EINVAL;
3445                                 }
3446                         }
3447                         if (error == 0) {
3448                                 *optsize = sizeof(struct sctp_assoc_value);
3449                         }
3450                         break;
3451                 }
3452         case SCTP_PR_SUPPORTED:
3453                 {
3454                         struct sctp_assoc_value *av;
3455
3456                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3457                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3458
3459                         if (stcb) {
3460                                 av->assoc_value = stcb->asoc.prsctp_supported;
3461                                 SCTP_TCB_UNLOCK(stcb);
3462                         } else {
3463                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3464                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3465                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3466                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3467                                         SCTP_INP_RLOCK(inp);
3468                                         av->assoc_value = inp->prsctp_supported;
3469                                         SCTP_INP_RUNLOCK(inp);
3470                                 } else {
3471                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3472                                         error = EINVAL;
3473                                 }
3474                         }
3475                         if (error == 0) {
3476                                 *optsize = sizeof(struct sctp_assoc_value);
3477                         }
3478                         break;
3479                 }
3480         case SCTP_AUTH_SUPPORTED:
3481                 {
3482                         struct sctp_assoc_value *av;
3483
3484                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3485                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3486
3487                         if (stcb) {
3488                                 av->assoc_value = stcb->asoc.auth_supported;
3489                                 SCTP_TCB_UNLOCK(stcb);
3490                         } else {
3491                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3492                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3493                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3494                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3495                                         SCTP_INP_RLOCK(inp);
3496                                         av->assoc_value = inp->auth_supported;
3497                                         SCTP_INP_RUNLOCK(inp);
3498                                 } else {
3499                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3500                                         error = EINVAL;
3501                                 }
3502                         }
3503                         if (error == 0) {
3504                                 *optsize = sizeof(struct sctp_assoc_value);
3505                         }
3506                         break;
3507                 }
3508         case SCTP_ASCONF_SUPPORTED:
3509                 {
3510                         struct sctp_assoc_value *av;
3511
3512                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3513                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3514
3515                         if (stcb) {
3516                                 av->assoc_value = stcb->asoc.asconf_supported;
3517                                 SCTP_TCB_UNLOCK(stcb);
3518                         } else {
3519                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3520                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3521                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3522                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3523                                         SCTP_INP_RLOCK(inp);
3524                                         av->assoc_value = inp->asconf_supported;
3525                                         SCTP_INP_RUNLOCK(inp);
3526                                 } else {
3527                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3528                                         error = EINVAL;
3529                                 }
3530                         }
3531                         if (error == 0) {
3532                                 *optsize = sizeof(struct sctp_assoc_value);
3533                         }
3534                         break;
3535                 }
3536         case SCTP_RECONFIG_SUPPORTED:
3537                 {
3538                         struct sctp_assoc_value *av;
3539
3540                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3541                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3542
3543                         if (stcb) {
3544                                 av->assoc_value = stcb->asoc.reconfig_supported;
3545                                 SCTP_TCB_UNLOCK(stcb);
3546                         } else {
3547                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3548                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3549                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3550                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3551                                         SCTP_INP_RLOCK(inp);
3552                                         av->assoc_value = inp->reconfig_supported;
3553                                         SCTP_INP_RUNLOCK(inp);
3554                                 } else {
3555                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3556                                         error = EINVAL;
3557                                 }
3558                         }
3559                         if (error == 0) {
3560                                 *optsize = sizeof(struct sctp_assoc_value);
3561                         }
3562                         break;
3563                 }
3564         case SCTP_NRSACK_SUPPORTED:
3565                 {
3566                         struct sctp_assoc_value *av;
3567
3568                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3569                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3570
3571                         if (stcb) {
3572                                 av->assoc_value = stcb->asoc.nrsack_supported;
3573                                 SCTP_TCB_UNLOCK(stcb);
3574                         } else {
3575                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3576                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3577                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3578                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3579                                         SCTP_INP_RLOCK(inp);
3580                                         av->assoc_value = inp->nrsack_supported;
3581                                         SCTP_INP_RUNLOCK(inp);
3582                                 } else {
3583                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3584                                         error = EINVAL;
3585                                 }
3586                         }
3587                         if (error == 0) {
3588                                 *optsize = sizeof(struct sctp_assoc_value);
3589                         }
3590                         break;
3591                 }
3592         case SCTP_PKTDROP_SUPPORTED:
3593                 {
3594                         struct sctp_assoc_value *av;
3595
3596                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3597                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3598
3599                         if (stcb) {
3600                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3601                                 SCTP_TCB_UNLOCK(stcb);
3602                         } else {
3603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3604                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3605                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3606                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3607                                         SCTP_INP_RLOCK(inp);
3608                                         av->assoc_value = inp->pktdrop_supported;
3609                                         SCTP_INP_RUNLOCK(inp);
3610                                 } else {
3611                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3612                                         error = EINVAL;
3613                                 }
3614                         }
3615                         if (error == 0) {
3616                                 *optsize = sizeof(struct sctp_assoc_value);
3617                         }
3618                         break;
3619                 }
3620         case SCTP_ENABLE_STREAM_RESET:
3621                 {
3622                         struct sctp_assoc_value *av;
3623
3624                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3625                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3626
3627                         if (stcb) {
3628                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3629                                 SCTP_TCB_UNLOCK(stcb);
3630                         } else {
3631                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3632                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3633                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3634                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3635                                         SCTP_INP_RLOCK(inp);
3636                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3637                                         SCTP_INP_RUNLOCK(inp);
3638                                 } else {
3639                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3640                                         error = EINVAL;
3641                                 }
3642                         }
3643                         if (error == 0) {
3644                                 *optsize = sizeof(struct sctp_assoc_value);
3645                         }
3646                         break;
3647                 }
3648         case SCTP_PR_STREAM_STATUS:
3649                 {
3650                         struct sctp_prstatus *sprstat;
3651                         uint16_t sid;
3652                         uint16_t policy;
3653
3654                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3655                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3656
3657                         sid = sprstat->sprstat_sid;
3658                         policy = sprstat->sprstat_policy;
3659 #if defined(SCTP_DETAILED_STR_STATS)
3660                         if ((stcb != NULL) &&
3661                             (sid < stcb->asoc.streamoutcnt) &&
3662                             (policy != SCTP_PR_SCTP_NONE) &&
3663                             ((policy <= SCTP_PR_SCTP_MAX) ||
3664                             (policy == SCTP_PR_SCTP_ALL))) {
3665                                 if (policy == SCTP_PR_SCTP_ALL) {
3666                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3667                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3668                                 } else {
3669                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3670                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3671                                 }
3672 #else
3673                         if ((stcb != NULL) &&
3674                             (sid < stcb->asoc.streamoutcnt) &&
3675                             (policy == SCTP_PR_SCTP_ALL)) {
3676                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3677                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3678 #endif
3679                         } else {
3680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3681                                 error = EINVAL;
3682                         }
3683                         if (stcb != NULL) {
3684                                 SCTP_TCB_UNLOCK(stcb);
3685                         }
3686                         if (error == 0) {
3687                                 *optsize = sizeof(struct sctp_prstatus);
3688                         }
3689                         break;
3690                 }
3691         case SCTP_PR_ASSOC_STATUS:
3692                 {
3693                         struct sctp_prstatus *sprstat;
3694                         uint16_t policy;
3695
3696                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3697                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3698
3699                         policy = sprstat->sprstat_policy;
3700                         if ((stcb != NULL) &&
3701                             (policy != SCTP_PR_SCTP_NONE) &&
3702                             ((policy <= SCTP_PR_SCTP_MAX) ||
3703                             (policy == SCTP_PR_SCTP_ALL))) {
3704                                 if (policy == SCTP_PR_SCTP_ALL) {
3705                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3706                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3707                                 } else {
3708                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3709                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3710                                 }
3711                         } else {
3712                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3713                                 error = EINVAL;
3714                         }
3715                         if (stcb != NULL) {
3716                                 SCTP_TCB_UNLOCK(stcb);
3717                         }
3718                         if (error == 0) {
3719                                 *optsize = sizeof(struct sctp_prstatus);
3720                         }
3721                         break;
3722                 }
3723         case SCTP_MAX_CWND:
3724                 {
3725                         struct sctp_assoc_value *av;
3726
3727                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3728                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3729
3730                         if (stcb) {
3731                                 av->assoc_value = stcb->asoc.max_cwnd;
3732                                 SCTP_TCB_UNLOCK(stcb);
3733                         } else {
3734                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3735                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3736                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3737                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3738                                         SCTP_INP_RLOCK(inp);
3739                                         av->assoc_value = inp->max_cwnd;
3740                                         SCTP_INP_RUNLOCK(inp);
3741                                 } else {
3742                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3743                                         error = EINVAL;
3744                                 }
3745                         }
3746                         if (error == 0) {
3747                                 *optsize = sizeof(struct sctp_assoc_value);
3748                         }
3749                         break;
3750                 }
3751         default:
3752                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3753                 error = ENOPROTOOPT;
3754                 break;
3755         }                       /* end switch (sopt->sopt_name) */
3756         if (error) {
3757                 *optsize = 0;
3758         }
3759         return (error);
3760 }
3761
3762 static int
3763 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3764     void *p)
3765 {
3766         int error, set_opt;
3767         uint32_t *mopt;
3768         struct sctp_tcb *stcb = NULL;
3769         struct sctp_inpcb *inp = NULL;
3770         uint32_t vrf_id;
3771
3772         if (optval == NULL) {
3773                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3774                 return (EINVAL);
3775         }
3776         inp = (struct sctp_inpcb *)so->so_pcb;
3777         if (inp == NULL) {
3778                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3779                 return (EINVAL);
3780         }
3781         vrf_id = inp->def_vrf_id;
3782
3783         error = 0;
3784         switch (optname) {
3785         case SCTP_NODELAY:
3786         case SCTP_AUTOCLOSE:
3787         case SCTP_AUTO_ASCONF:
3788         case SCTP_EXPLICIT_EOR:
3789         case SCTP_DISABLE_FRAGMENTS:
3790         case SCTP_USE_EXT_RCVINFO:
3791         case SCTP_I_WANT_MAPPED_V4_ADDR:
3792                 /* copy in the option value */
3793                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3794                 set_opt = 0;
3795                 if (error)
3796                         break;
3797                 switch (optname) {
3798                 case SCTP_DISABLE_FRAGMENTS:
3799                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3800                         break;
3801                 case SCTP_AUTO_ASCONF:
3802                         /*
3803                          * NOTE: we don't really support this flag
3804                          */
3805                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3806                                 /* only valid for bound all sockets */
3807                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3808                                     (*mopt != 0)) {
3809                                         /* forbidden by admin */
3810                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3811                                         return (EPERM);
3812                                 }
3813                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3814                         } else {
3815                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3816                                 return (EINVAL);
3817                         }
3818                         break;
3819                 case SCTP_EXPLICIT_EOR:
3820                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3821                         break;
3822                 case SCTP_USE_EXT_RCVINFO:
3823                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3824                         break;
3825                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3826                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3827                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3828                         } else {
3829                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3830                                 return (EINVAL);
3831                         }
3832                         break;
3833                 case SCTP_NODELAY:
3834                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3835                         break;
3836                 case SCTP_AUTOCLOSE:
3837                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3838                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3839                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3840                                 return (EINVAL);
3841                         }
3842                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3843                         /*
3844                          * The value is in ticks. Note this does not effect
3845                          * old associations, only new ones.
3846                          */
3847                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3848                         break;
3849                 }
3850                 SCTP_INP_WLOCK(inp);
3851                 if (*mopt != 0) {
3852                         sctp_feature_on(inp, set_opt);
3853                 } else {
3854                         sctp_feature_off(inp, set_opt);
3855                 }
3856                 SCTP_INP_WUNLOCK(inp);
3857                 break;
3858         case SCTP_REUSE_PORT:
3859                 {
3860                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3861                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3862                                 /* Can't set it after we are bound */
3863                                 error = EINVAL;
3864                                 break;
3865                         }
3866                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3867                                 /* Can't do this for a 1-m socket */
3868                                 error = EINVAL;
3869                                 break;
3870                         }
3871                         if (optval)
3872                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3873                         else
3874                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3875                         break;
3876                 }
3877         case SCTP_PARTIAL_DELIVERY_POINT:
3878                 {
3879                         uint32_t *value;
3880
3881                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3882                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3883                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3884                                 error = EINVAL;
3885                                 break;
3886                         }
3887                         inp->partial_delivery_point = *value;
3888                         break;
3889                 }
3890         case SCTP_FRAGMENT_INTERLEAVE:
3891                 /* not yet until we re-write sctp_recvmsg() */
3892                 {
3893                         uint32_t *level;
3894
3895                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3896                         if (*level == SCTP_FRAG_LEVEL_2) {
3897                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3898                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3899                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3900                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3901                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3902                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3903                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3904                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3905
3906                         } else {
3907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3908                                 error = EINVAL;
3909                         }
3910                         break;
3911                 }
3912         case SCTP_INTERLEAVING_SUPPORTED:
3913                 {
3914                         struct sctp_assoc_value *av;
3915
3916                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3917                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3918
3919                         if (stcb) {
3920                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3921                                 error = EINVAL;
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                                         SCTP_INP_WLOCK(inp);
3929                                         if (av->assoc_value == 0) {
3930                                                 inp->idata_supported = 0;
3931                                         } else {
3932                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3933                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3934                                                         inp->idata_supported = 1;
3935                                                 } else {
3936                                                         /*
3937                                                          * Must have Frag
3938                                                          * interleave and
3939                                                          * stream interleave
3940                                                          * on
3941                                                          */
3942                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3943                                                         error = EINVAL;
3944                                                 }
3945                                         }
3946                                         SCTP_INP_WUNLOCK(inp);
3947                                 } else {
3948                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3949                                         error = EINVAL;
3950                                 }
3951                         }
3952                         break;
3953                 }
3954         case SCTP_CMT_ON_OFF:
3955                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3956                         struct sctp_assoc_value *av;
3957
3958                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3959                         if (av->assoc_value > SCTP_CMT_MAX) {
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.sctp_cmt_on_off = av->assoc_value;
3967                                 SCTP_TCB_UNLOCK(stcb);
3968                         } else {
3969                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3970                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3971                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3972                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3973                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3974                                         SCTP_INP_WLOCK(inp);
3975                                         inp->sctp_cmt_on_off = av->assoc_value;
3976                                         SCTP_INP_WUNLOCK(inp);
3977                                 }
3978                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3979                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3980                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3981                                         SCTP_INP_RLOCK(inp);
3982                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3983                                                 SCTP_TCB_LOCK(stcb);
3984                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3985                                                 SCTP_TCB_UNLOCK(stcb);
3986                                         }
3987                                         SCTP_INP_RUNLOCK(inp);
3988                                 }
3989                         }
3990                 } else {
3991                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3992                         error = ENOPROTOOPT;
3993                 }
3994                 break;
3995         case SCTP_PLUGGABLE_CC:
3996                 {
3997                         struct sctp_assoc_value *av;
3998                         struct sctp_nets *net;
3999
4000                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4001                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
4002                             (av->assoc_value != SCTP_CC_HSTCP) &&
4003                             (av->assoc_value != SCTP_CC_HTCP) &&
4004                             (av->assoc_value != SCTP_CC_RTCC)) {
4005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4006                                 error = EINVAL;
4007                                 break;
4008                         }
4009                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4010                         if (stcb) {
4011                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4012                                 stcb->asoc.congestion_control_module = av->assoc_value;
4013                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4014                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4015                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4016                                         }
4017                                 }
4018                                 SCTP_TCB_UNLOCK(stcb);
4019                         } else {
4020                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4021                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4022                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4023                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4024                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4025                                         SCTP_INP_WLOCK(inp);
4026                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4027                                         SCTP_INP_WUNLOCK(inp);
4028                                 }
4029                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4030                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4031                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4032                                         SCTP_INP_RLOCK(inp);
4033                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4034                                                 SCTP_TCB_LOCK(stcb);
4035                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4036                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4037                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4038                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4039                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4040                                                         }
4041                                                 }
4042                                                 SCTP_TCB_UNLOCK(stcb);
4043                                         }
4044                                         SCTP_INP_RUNLOCK(inp);
4045                                 }
4046                         }
4047                         break;
4048                 }
4049         case SCTP_CC_OPTION:
4050                 {
4051                         struct sctp_cc_option *cc_opt;
4052
4053                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4054                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4055                         if (stcb == NULL) {
4056                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4057                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4058                                         SCTP_INP_RLOCK(inp);
4059                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4060                                                 SCTP_TCB_LOCK(stcb);
4061                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4062                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4063                                                 }
4064                                                 SCTP_TCB_UNLOCK(stcb);
4065                                         }
4066                                         SCTP_INP_RUNLOCK(inp);
4067                                 } else {
4068                                         error = EINVAL;
4069                                 }
4070                         } else {
4071                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4072                                         error = ENOTSUP;
4073                                 } else {
4074                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4075                                             cc_opt);
4076                                 }
4077                                 SCTP_TCB_UNLOCK(stcb);
4078                         }
4079                         break;
4080                 }
4081         case SCTP_PLUGGABLE_SS:
4082                 {
4083                         struct sctp_assoc_value *av;
4084
4085                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4086                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4087                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4088                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4089                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4090                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4091                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4092                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4093                                 error = EINVAL;
4094                                 break;
4095                         }
4096                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4097                         if (stcb) {
4098                                 SCTP_TCB_SEND_LOCK(stcb);
4099                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4100                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4101                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4102                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4103                                 SCTP_TCB_SEND_UNLOCK(stcb);
4104                                 SCTP_TCB_UNLOCK(stcb);
4105                         } else {
4106                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4107                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4108                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4109                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4110                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4111                                         SCTP_INP_WLOCK(inp);
4112                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4113                                         SCTP_INP_WUNLOCK(inp);
4114                                 }
4115                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4116                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4117                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4118                                         SCTP_INP_RLOCK(inp);
4119                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4120                                                 SCTP_TCB_LOCK(stcb);
4121                                                 SCTP_TCB_SEND_LOCK(stcb);
4122                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4123                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4124                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4125                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4126                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4127                                                 SCTP_TCB_UNLOCK(stcb);
4128                                         }
4129                                         SCTP_INP_RUNLOCK(inp);
4130                                 }
4131                         }
4132                         break;
4133                 }
4134         case SCTP_SS_VALUE:
4135                 {
4136                         struct sctp_stream_value *av;
4137
4138                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4139                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4140                         if (stcb) {
4141                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4142                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4143                                     av->stream_value) < 0)) {
4144                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4145                                         error = EINVAL;
4146                                 }
4147                                 SCTP_TCB_UNLOCK(stcb);
4148                         } else {
4149                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4150                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4151                                         SCTP_INP_RLOCK(inp);
4152                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4153                                                 SCTP_TCB_LOCK(stcb);
4154                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4155                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4156                                                             &stcb->asoc,
4157                                                             &stcb->asoc.strmout[av->stream_id],
4158                                                             av->stream_value);
4159                                                 }
4160                                                 SCTP_TCB_UNLOCK(stcb);
4161                                         }
4162                                         SCTP_INP_RUNLOCK(inp);
4163                                 } else {
4164                                         /*
4165                                          * Can't set stream value without
4166                                          * association
4167                                          */
4168                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4169                                         error = EINVAL;
4170                                 }
4171                         }
4172                         break;
4173                 }
4174         case SCTP_CLR_STAT_LOG:
4175                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4176                 error = EOPNOTSUPP;
4177                 break;
4178         case SCTP_CONTEXT:
4179                 {
4180                         struct sctp_assoc_value *av;
4181
4182                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4183                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4184
4185                         if (stcb) {
4186                                 stcb->asoc.context = av->assoc_value;
4187                                 SCTP_TCB_UNLOCK(stcb);
4188                         } else {
4189                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4190                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4191                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4192                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4193                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4194                                         SCTP_INP_WLOCK(inp);
4195                                         inp->sctp_context = av->assoc_value;
4196                                         SCTP_INP_WUNLOCK(inp);
4197                                 }
4198                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4199                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4200                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4201                                         SCTP_INP_RLOCK(inp);
4202                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4203                                                 SCTP_TCB_LOCK(stcb);
4204                                                 stcb->asoc.context = av->assoc_value;
4205                                                 SCTP_TCB_UNLOCK(stcb);
4206                                         }
4207                                         SCTP_INP_RUNLOCK(inp);
4208                                 }
4209                         }
4210                         break;
4211                 }
4212         case SCTP_VRF_ID:
4213                 {
4214                         uint32_t *default_vrfid;
4215
4216                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4217                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4218                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4219                                 error = EINVAL;
4220                                 break;
4221                         }
4222                         inp->def_vrf_id = *default_vrfid;
4223                         break;
4224                 }
4225         case SCTP_DEL_VRF_ID:
4226                 {
4227                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4228                         error = EOPNOTSUPP;
4229                         break;
4230                 }
4231         case SCTP_ADD_VRF_ID:
4232                 {
4233                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4234                         error = EOPNOTSUPP;
4235                         break;
4236                 }
4237         case SCTP_DELAYED_SACK:
4238                 {
4239                         struct sctp_sack_info *sack;
4240
4241                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4242                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4243                         if (sack->sack_delay) {
4244                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4245                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4246                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4247                                         sack->sack_delay = TICKS_TO_MSEC(1);
4248                                 }
4249                         }
4250                         if (stcb) {
4251                                 if (sack->sack_delay) {
4252                                         stcb->asoc.delayed_ack = sack->sack_delay;
4253                                 }
4254                                 if (sack->sack_freq) {
4255                                         stcb->asoc.sack_freq = sack->sack_freq;
4256                                 }
4257                                 SCTP_TCB_UNLOCK(stcb);
4258                         } else {
4259                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4260                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4261                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4262                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4263                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4264                                         SCTP_INP_WLOCK(inp);
4265                                         if (sack->sack_delay) {
4266                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4267                                         }
4268                                         if (sack->sack_freq) {
4269                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4270                                         }
4271                                         SCTP_INP_WUNLOCK(inp);
4272                                 }
4273                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4274                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4275                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4276                                         SCTP_INP_RLOCK(inp);
4277                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4278                                                 SCTP_TCB_LOCK(stcb);
4279                                                 if (sack->sack_delay) {
4280                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4281                                                 }
4282                                                 if (sack->sack_freq) {
4283                                                         stcb->asoc.sack_freq = sack->sack_freq;
4284                                                 }
4285                                                 SCTP_TCB_UNLOCK(stcb);
4286                                         }
4287                                         SCTP_INP_RUNLOCK(inp);
4288                                 }
4289                         }
4290                         break;
4291                 }
4292         case SCTP_AUTH_CHUNK:
4293                 {
4294                         struct sctp_authchunk *sauth;
4295
4296                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4297
4298                         SCTP_INP_WLOCK(inp);
4299                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4300                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4301                                 error = EINVAL;
4302                         } else {
4303                                 inp->auth_supported = 1;
4304                         }
4305                         SCTP_INP_WUNLOCK(inp);
4306                         break;
4307                 }
4308         case SCTP_AUTH_KEY:
4309                 {
4310                         struct sctp_authkey *sca;
4311                         struct sctp_keyhead *shared_keys;
4312                         sctp_sharedkey_t *shared_key;
4313                         sctp_key_t *key = NULL;
4314                         size_t size;
4315
4316                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4317                         if (sca->sca_keylength == 0) {
4318                                 size = optsize - sizeof(struct sctp_authkey);
4319                         } else {
4320                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4321                                         size = sca->sca_keylength;
4322                                 } else {
4323                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4324                                         error = EINVAL;
4325                                         break;
4326                                 }
4327                         }
4328                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4329
4330                         if (stcb) {
4331                                 shared_keys = &stcb->asoc.shared_keys;
4332                                 /* clear the cached keys for this key id */
4333                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4334                                 /*
4335                                  * create the new shared key and
4336                                  * insert/replace it
4337                                  */
4338                                 if (size > 0) {
4339                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4340                                         if (key == NULL) {
4341                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4342                                                 error = ENOMEM;
4343                                                 SCTP_TCB_UNLOCK(stcb);
4344                                                 break;
4345                                         }
4346                                 }
4347                                 shared_key = sctp_alloc_sharedkey();
4348                                 if (shared_key == NULL) {
4349                                         sctp_free_key(key);
4350                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4351                                         error = ENOMEM;
4352                                         SCTP_TCB_UNLOCK(stcb);
4353                                         break;
4354                                 }
4355                                 shared_key->key = key;
4356                                 shared_key->keyid = sca->sca_keynumber;
4357                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4358                                 SCTP_TCB_UNLOCK(stcb);
4359                         } else {
4360                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4361                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4362                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4363                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4364                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4365                                         SCTP_INP_WLOCK(inp);
4366                                         shared_keys = &inp->sctp_ep.shared_keys;
4367                                         /*
4368                                          * clear the cached keys on all
4369                                          * assocs for this key id
4370                                          */
4371                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4372                                         /*
4373                                          * create the new shared key and
4374                                          * insert/replace it
4375                                          */
4376                                         if (size > 0) {
4377                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4378                                                 if (key == NULL) {
4379                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4380                                                         error = ENOMEM;
4381                                                         SCTP_INP_WUNLOCK(inp);
4382                                                         break;
4383                                                 }
4384                                         }
4385                                         shared_key = sctp_alloc_sharedkey();
4386                                         if (shared_key == NULL) {
4387                                                 sctp_free_key(key);
4388                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4389                                                 error = ENOMEM;
4390                                                 SCTP_INP_WUNLOCK(inp);
4391                                                 break;
4392                                         }
4393                                         shared_key->key = key;
4394                                         shared_key->keyid = sca->sca_keynumber;
4395                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4396                                         SCTP_INP_WUNLOCK(inp);
4397                                 }
4398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4399                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4400                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4401                                         SCTP_INP_RLOCK(inp);
4402                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4403                                                 SCTP_TCB_LOCK(stcb);
4404                                                 shared_keys = &stcb->asoc.shared_keys;
4405                                                 /*
4406                                                  * clear the cached keys for
4407                                                  * this key id
4408                                                  */
4409                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4410                                                 /*
4411                                                  * create the new shared key
4412                                                  * and insert/replace it
4413                                                  */
4414                                                 if (size > 0) {
4415                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4416                                                         if (key == NULL) {
4417                                                                 SCTP_TCB_UNLOCK(stcb);
4418                                                                 continue;
4419                                                         }
4420                                                 }
4421                                                 shared_key = sctp_alloc_sharedkey();
4422                                                 if (shared_key == NULL) {
4423                                                         sctp_free_key(key);
4424                                                         SCTP_TCB_UNLOCK(stcb);
4425                                                         continue;
4426                                                 }
4427                                                 shared_key->key = key;
4428                                                 shared_key->keyid = sca->sca_keynumber;
4429                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4430                                                 SCTP_TCB_UNLOCK(stcb);
4431                                         }
4432                                         SCTP_INP_RUNLOCK(inp);
4433                                 }
4434                         }
4435                         break;
4436                 }
4437         case SCTP_HMAC_IDENT:
4438                 {
4439                         struct sctp_hmacalgo *shmac;
4440                         sctp_hmaclist_t *hmaclist;
4441                         uint16_t hmacid;
4442                         uint32_t i;
4443
4444                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4445                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4446                             (shmac->shmac_number_of_idents > 0xffff)) {
4447                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4448                                 error = EINVAL;
4449                                 break;
4450                         }
4451
4452                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4453                         if (hmaclist == NULL) {
4454                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4455                                 error = ENOMEM;
4456                                 break;
4457                         }
4458                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4459                                 hmacid = shmac->shmac_idents[i];
4460                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4461                                          /* invalid HMACs were found */ ;
4462                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4463                                         error = EINVAL;
4464                                         sctp_free_hmaclist(hmaclist);
4465                                         goto sctp_set_hmac_done;
4466                                 }
4467                         }
4468                         for (i = 0; i < hmaclist->num_algo; i++) {
4469                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4470                                         /* already in list */
4471                                         break;
4472                                 }
4473                         }
4474                         if (i == hmaclist->num_algo) {
4475                                 /* not found in list */
4476                                 sctp_free_hmaclist(hmaclist);
4477                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4478                                 error = EINVAL;
4479                                 break;
4480                         }
4481                         /* set it on the endpoint */
4482                         SCTP_INP_WLOCK(inp);
4483                         if (inp->sctp_ep.local_hmacs)
4484                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4485                         inp->sctp_ep.local_hmacs = hmaclist;
4486                         SCTP_INP_WUNLOCK(inp);
4487         sctp_set_hmac_done:
4488                         break;
4489                 }
4490         case SCTP_AUTH_ACTIVE_KEY:
4491                 {
4492                         struct sctp_authkeyid *scact;
4493
4494                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4495                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4496
4497                         /* set the active key on the right place */
4498                         if (stcb) {
4499                                 /* set the active key on the assoc */
4500                                 if (sctp_auth_setactivekey(stcb,
4501                                     scact->scact_keynumber)) {
4502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4503                                             SCTP_FROM_SCTP_USRREQ,
4504                                             EINVAL);
4505                                         error = EINVAL;
4506                                 }
4507                                 SCTP_TCB_UNLOCK(stcb);
4508                         } else {
4509                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4510                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4511                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4512                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4513                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4514                                         SCTP_INP_WLOCK(inp);
4515                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4516                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4517                                                 error = EINVAL;
4518                                         }
4519                                         SCTP_INP_WUNLOCK(inp);
4520                                 }
4521                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4522                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4523                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4524                                         SCTP_INP_RLOCK(inp);
4525                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4526                                                 SCTP_TCB_LOCK(stcb);
4527                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4528                                                 SCTP_TCB_UNLOCK(stcb);
4529                                         }
4530                                         SCTP_INP_RUNLOCK(inp);
4531                                 }
4532                         }
4533                         break;
4534                 }
4535         case SCTP_AUTH_DELETE_KEY:
4536                 {
4537                         struct sctp_authkeyid *scdel;
4538
4539                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4540                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4541
4542                         /* delete the key from the right place */
4543                         if (stcb) {
4544                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4545                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4546                                         error = EINVAL;
4547                                 }
4548                                 SCTP_TCB_UNLOCK(stcb);
4549                         } else {
4550                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4551                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4552                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4553                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4554                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4555                                         SCTP_INP_WLOCK(inp);
4556                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4557                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4558                                                 error = EINVAL;
4559                                         }
4560                                         SCTP_INP_WUNLOCK(inp);
4561                                 }
4562                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4563                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4564                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4565                                         SCTP_INP_RLOCK(inp);
4566                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4567                                                 SCTP_TCB_LOCK(stcb);
4568                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4569                                                 SCTP_TCB_UNLOCK(stcb);
4570                                         }
4571                                         SCTP_INP_RUNLOCK(inp);
4572                                 }
4573                         }
4574                         break;
4575                 }
4576         case SCTP_AUTH_DEACTIVATE_KEY:
4577                 {
4578                         struct sctp_authkeyid *keyid;
4579
4580                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4581                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4582
4583                         /* deactivate the key from the right place */
4584                         if (stcb) {
4585                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4586                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4587                                         error = EINVAL;
4588                                 }
4589                                 SCTP_TCB_UNLOCK(stcb);
4590                         } else {
4591                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4592                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4593                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4594                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4595                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4596                                         SCTP_INP_WLOCK(inp);
4597                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4598                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4599                                                 error = EINVAL;
4600                                         }
4601                                         SCTP_INP_WUNLOCK(inp);
4602                                 }
4603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4604                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4605                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4606                                         SCTP_INP_RLOCK(inp);
4607                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4608                                                 SCTP_TCB_LOCK(stcb);
4609                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4610                                                 SCTP_TCB_UNLOCK(stcb);
4611                                         }
4612                                         SCTP_INP_RUNLOCK(inp);
4613                                 }
4614                         }
4615                         break;
4616                 }
4617         case SCTP_ENABLE_STREAM_RESET:
4618                 {
4619                         struct sctp_assoc_value *av;
4620
4621                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4622                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4623                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4624                                 error = EINVAL;
4625                                 break;
4626                         }
4627                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4628                         if (stcb) {
4629                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4630                                 SCTP_TCB_UNLOCK(stcb);
4631                         } else {
4632                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4633                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4634                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4635                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4636                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4637                                         SCTP_INP_WLOCK(inp);
4638                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4639                                         SCTP_INP_WUNLOCK(inp);
4640                                 }
4641                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4642                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4643                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4644                                         SCTP_INP_RLOCK(inp);
4645                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4646                                                 SCTP_TCB_LOCK(stcb);
4647                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4648                                                 SCTP_TCB_UNLOCK(stcb);
4649                                         }
4650                                         SCTP_INP_RUNLOCK(inp);
4651                                 }
4652
4653                         }
4654                         break;
4655                 }
4656         case SCTP_RESET_STREAMS:
4657                 {
4658                         struct sctp_reset_streams *strrst;
4659                         int i, send_out = 0;
4660                         int send_in = 0;
4661
4662                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4663                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4664                         if (stcb == NULL) {
4665                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4666                                 error = ENOENT;
4667                                 break;
4668                         }
4669                         if (stcb->asoc.reconfig_supported == 0) {
4670                                 /*
4671                                  * Peer does not support the chunk type.
4672                                  */
4673                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4674                                 error = EOPNOTSUPP;
4675                                 SCTP_TCB_UNLOCK(stcb);
4676                                 break;
4677                         }
4678                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4679                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4680                                 error = EINVAL;
4681                                 SCTP_TCB_UNLOCK(stcb);
4682                                 break;
4683                         }
4684                         if (sizeof(struct sctp_reset_streams) +
4685                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4686                                 error = EINVAL;
4687                                 SCTP_TCB_UNLOCK(stcb);
4688                                 break;
4689                         }
4690                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4691                                 send_in = 1;
4692                                 if (stcb->asoc.stream_reset_outstanding) {
4693                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4694                                         error = EALREADY;
4695                                         SCTP_TCB_UNLOCK(stcb);
4696                                         break;
4697                                 }
4698                         }
4699                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4700                                 send_out = 1;
4701                         }
4702                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4703                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4704                                 error = ENOMEM;
4705                                 SCTP_TCB_UNLOCK(stcb);
4706                                 break;
4707                         }
4708                         if ((send_in == 0) && (send_out == 0)) {
4709                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4710                                 error = EINVAL;
4711                                 SCTP_TCB_UNLOCK(stcb);
4712                                 break;
4713                         }
4714                         for (i = 0; i < strrst->srs_number_streams; i++) {
4715                                 if ((send_in) &&
4716                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4718                                         error = EINVAL;
4719                                         break;
4720                                 }
4721                                 if ((send_out) &&
4722                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4723                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4724                                         error = EINVAL;
4725                                         break;
4726                                 }
4727                         }
4728                         if (error) {
4729                                 SCTP_TCB_UNLOCK(stcb);
4730                                 break;
4731                         }
4732                         if (send_out) {
4733                                 int cnt;
4734                                 uint16_t strm;
4735
4736                                 if (strrst->srs_number_streams) {
4737                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4738                                                 strm = strrst->srs_stream_list[i];
4739                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4740                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4741                                                         cnt++;
4742                                                 }
4743                                         }
4744                                 } else {
4745                                         /* Its all */
4746                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4747                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4748                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4749                                                         cnt++;
4750                                                 }
4751                                         }
4752                                 }
4753                         }
4754                         if (send_in) {
4755                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4756                                     strrst->srs_stream_list,
4757                                     send_in, 0, 0, 0, 0, 0);
4758                         } else {
4759                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4760                         }
4761                         if (error == 0) {
4762                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4763                         } else {
4764                                 /*
4765                                  * For outgoing streams don't report any
4766                                  * problems in sending the request to the
4767                                  * application. XXX: Double check resetting
4768                                  * incoming streams.
4769                                  */
4770                                 error = 0;
4771                         }
4772                         SCTP_TCB_UNLOCK(stcb);
4773                         break;
4774                 }
4775         case SCTP_ADD_STREAMS:
4776                 {
4777                         struct sctp_add_streams *stradd;
4778                         uint8_t addstream = 0;
4779                         uint16_t add_o_strmcnt = 0;
4780                         uint16_t add_i_strmcnt = 0;
4781
4782                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4783                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4784                         if (stcb == NULL) {
4785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4786                                 error = ENOENT;
4787                                 break;
4788                         }
4789                         if (stcb->asoc.reconfig_supported == 0) {
4790                                 /*
4791                                  * Peer does not support the chunk type.
4792                                  */
4793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4794                                 error = EOPNOTSUPP;
4795                                 SCTP_TCB_UNLOCK(stcb);
4796                                 break;
4797                         }
4798                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4799                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4800                                 error = EINVAL;
4801                                 SCTP_TCB_UNLOCK(stcb);
4802                                 break;
4803                         }
4804                         if (stcb->asoc.stream_reset_outstanding) {
4805                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4806                                 error = EALREADY;
4807                                 SCTP_TCB_UNLOCK(stcb);
4808                                 break;
4809                         }
4810                         if ((stradd->sas_outstrms == 0) &&
4811                             (stradd->sas_instrms == 0)) {
4812                                 error = EINVAL;
4813                                 goto skip_stuff;
4814                         }
4815                         if (stradd->sas_outstrms) {
4816                                 addstream = 1;
4817                                 /* We allocate here */
4818                                 add_o_strmcnt = stradd->sas_outstrms;
4819                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4820                                         /* You can't have more than 64k */
4821                                         error = EINVAL;
4822                                         goto skip_stuff;
4823                                 }
4824                         }
4825                         if (stradd->sas_instrms) {
4826                                 int cnt;
4827
4828                                 addstream |= 2;
4829                                 /*
4830                                  * We allocate inside
4831                                  * sctp_send_str_reset_req()
4832                                  */
4833                                 add_i_strmcnt = stradd->sas_instrms;
4834                                 cnt = add_i_strmcnt;
4835                                 cnt += stcb->asoc.streamincnt;
4836                                 if (cnt > 0x0000ffff) {
4837                                         /* You can't have more than 64k */
4838                                         error = EINVAL;
4839                                         goto skip_stuff;
4840                                 }
4841                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4842                                         /* More than you are allowed */
4843                                         error = EINVAL;
4844                                         goto skip_stuff;
4845                                 }
4846                         }
4847                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4848                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4849         skip_stuff:
4850                         SCTP_TCB_UNLOCK(stcb);
4851                         break;
4852                 }
4853         case SCTP_RESET_ASSOC:
4854                 {
4855                         int i;
4856                         uint32_t *value;
4857
4858                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4859                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4860                         if (stcb == NULL) {
4861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4862                                 error = ENOENT;
4863                                 break;
4864                         }
4865                         if (stcb->asoc.reconfig_supported == 0) {
4866                                 /*
4867                                  * Peer does not support the chunk type.
4868                                  */
4869                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4870                                 error = EOPNOTSUPP;
4871                                 SCTP_TCB_UNLOCK(stcb);
4872                                 break;
4873                         }
4874                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4876                                 error = EINVAL;
4877                                 SCTP_TCB_UNLOCK(stcb);
4878                                 break;
4879                         }
4880                         if (stcb->asoc.stream_reset_outstanding) {
4881                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4882                                 error = EALREADY;
4883                                 SCTP_TCB_UNLOCK(stcb);
4884                                 break;
4885                         }
4886                         /*
4887                          * Is there any data pending in the send or sent
4888                          * queues?
4889                          */
4890                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4891                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4892                 busy_out:
4893                                 error = EBUSY;
4894                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4895                                 SCTP_TCB_UNLOCK(stcb);
4896                                 break;
4897                         }
4898                         /* Do any streams have data queued? */
4899                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4900                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4901                                         goto busy_out;
4902                                 }
4903                         }
4904                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4905                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4906                         SCTP_TCB_UNLOCK(stcb);
4907                         break;
4908                 }
4909         case SCTP_CONNECT_X:
4910                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4911                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4912                         error = EINVAL;
4913                         break;
4914                 }
4915                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4916                 break;
4917         case SCTP_CONNECT_X_DELAYED:
4918                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4919                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4920                         error = EINVAL;
4921                         break;
4922                 }
4923                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4924                 break;
4925         case SCTP_CONNECT_X_COMPLETE:
4926                 {
4927                         struct sockaddr *sa;
4928
4929                         /* FIXME MT: check correct? */
4930                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4931
4932                         /* find tcb */
4933                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4934                                 SCTP_INP_RLOCK(inp);
4935                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4936                                 if (stcb) {
4937                                         SCTP_TCB_LOCK(stcb);
4938                                 }
4939                                 SCTP_INP_RUNLOCK(inp);
4940                         } else {
4941                                 /*
4942                                  * We increment here since
4943                                  * sctp_findassociation_ep_addr() wil do a
4944                                  * decrement if it finds the stcb as long as
4945                                  * the locked tcb (last argument) is NOT a
4946                                  * TCB.. aka NULL.
4947                                  */
4948                                 SCTP_INP_INCR_REF(inp);
4949                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4950                                 if (stcb == NULL) {
4951                                         SCTP_INP_DECR_REF(inp);
4952                                 }
4953                         }
4954
4955                         if (stcb == NULL) {
4956                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4957                                 error = ENOENT;
4958                                 break;
4959                         }
4960                         if (stcb->asoc.delayed_connection == 1) {
4961                                 stcb->asoc.delayed_connection = 0;
4962                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4963                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4964                                     stcb->asoc.primary_destination,
4965                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4966                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4967                         } else {
4968                                 /*
4969                                  * already expired or did not use delayed
4970                                  * connectx
4971                                  */
4972                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4973                                 error = EALREADY;
4974                         }
4975                         SCTP_TCB_UNLOCK(stcb);
4976                         break;
4977                 }
4978         case SCTP_MAX_BURST:
4979                 {
4980                         struct sctp_assoc_value *av;
4981
4982                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4983                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4984
4985                         if (stcb) {
4986                                 stcb->asoc.max_burst = av->assoc_value;
4987                                 SCTP_TCB_UNLOCK(stcb);
4988                         } else {
4989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4991                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4992                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4993                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4994                                         SCTP_INP_WLOCK(inp);
4995                                         inp->sctp_ep.max_burst = av->assoc_value;
4996                                         SCTP_INP_WUNLOCK(inp);
4997                                 }
4998                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4999                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
5000                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
5001                                         SCTP_INP_RLOCK(inp);
5002                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5003                                                 SCTP_TCB_LOCK(stcb);
5004                                                 stcb->asoc.max_burst = av->assoc_value;
5005                                                 SCTP_TCB_UNLOCK(stcb);
5006                                         }
5007                                         SCTP_INP_RUNLOCK(inp);
5008                                 }
5009                         }
5010                         break;
5011                 }
5012         case SCTP_MAXSEG:
5013                 {
5014                         struct sctp_assoc_value *av;
5015                         int ovh;
5016
5017                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
5018                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
5019
5020                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5021                                 ovh = SCTP_MED_OVERHEAD;
5022                         } else {
5023                                 ovh = SCTP_MED_V4_OVERHEAD;
5024                         }
5025                         if (stcb) {
5026                                 if (av->assoc_value) {
5027                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
5028                                 } else {
5029                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5030                                 }
5031                                 SCTP_TCB_UNLOCK(stcb);
5032                         } else {
5033                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5034                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5035                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5036                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
5037                                         SCTP_INP_WLOCK(inp);
5038                                         /*
5039                                          * FIXME MT: I think this is not in
5040                                          * tune with the API ID
5041                                          */
5042                                         if (av->assoc_value) {
5043                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
5044                                         } else {
5045                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5046                                         }
5047                                         SCTP_INP_WUNLOCK(inp);
5048                                 } else {
5049                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5050                                         error = EINVAL;
5051                                 }
5052                         }
5053                         break;
5054                 }
5055         case SCTP_EVENTS:
5056                 {
5057                         struct sctp_event_subscribe *events;
5058
5059                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5060
5061                         SCTP_INP_WLOCK(inp);
5062                         if (events->sctp_data_io_event) {
5063                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5064                         } else {
5065                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5066                         }
5067
5068                         if (events->sctp_association_event) {
5069                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5070                         } else {
5071                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5072                         }
5073
5074                         if (events->sctp_address_event) {
5075                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5076                         } else {
5077                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5078                         }
5079
5080                         if (events->sctp_send_failure_event) {
5081                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5082                         } else {
5083                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5084                         }
5085
5086                         if (events->sctp_peer_error_event) {
5087                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5088                         } else {
5089                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5090                         }
5091
5092                         if (events->sctp_shutdown_event) {
5093                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5094                         } else {
5095                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5096                         }
5097
5098                         if (events->sctp_partial_delivery_event) {
5099                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5100                         } else {
5101                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5102                         }
5103
5104                         if (events->sctp_adaptation_layer_event) {
5105                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5106                         } else {
5107                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5108                         }
5109
5110                         if (events->sctp_authentication_event) {
5111                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5112                         } else {
5113                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5114                         }
5115
5116                         if (events->sctp_sender_dry_event) {
5117                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5118                         } else {
5119                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5120                         }
5121
5122                         if (events->sctp_stream_reset_event) {
5123                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5124                         } else {
5125                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5126                         }
5127                         SCTP_INP_WUNLOCK(inp);
5128
5129                         SCTP_INP_RLOCK(inp);
5130                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5131                                 SCTP_TCB_LOCK(stcb);
5132                                 if (events->sctp_association_event) {
5133                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5134                                 } else {
5135                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5136                                 }
5137                                 if (events->sctp_address_event) {
5138                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5139                                 } else {
5140                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5141                                 }
5142                                 if (events->sctp_send_failure_event) {
5143                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5144                                 } else {
5145                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5146                                 }
5147                                 if (events->sctp_peer_error_event) {
5148                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5149                                 } else {
5150                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5151                                 }
5152                                 if (events->sctp_shutdown_event) {
5153                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5154                                 } else {
5155                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5156                                 }
5157                                 if (events->sctp_partial_delivery_event) {
5158                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5159                                 } else {
5160                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5161                                 }
5162                                 if (events->sctp_adaptation_layer_event) {
5163                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5164                                 } else {
5165                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5166                                 }
5167                                 if (events->sctp_authentication_event) {
5168                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5169                                 } else {
5170                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5171                                 }
5172                                 if (events->sctp_sender_dry_event) {
5173                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5174                                 } else {
5175                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5176                                 }
5177                                 if (events->sctp_stream_reset_event) {
5178                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5179                                 } else {
5180                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5181                                 }
5182                                 SCTP_TCB_UNLOCK(stcb);
5183                         }
5184                         /*
5185                          * Send up the sender dry event only for 1-to-1
5186                          * style sockets.
5187                          */
5188                         if (events->sctp_sender_dry_event) {
5189                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5190                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5191                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5192                                         if (stcb) {
5193                                                 SCTP_TCB_LOCK(stcb);
5194                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5195                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5196                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5197                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5198                                                 }
5199                                                 SCTP_TCB_UNLOCK(stcb);
5200                                         }
5201                                 }
5202                         }
5203                         SCTP_INP_RUNLOCK(inp);
5204                         break;
5205                 }
5206         case SCTP_ADAPTATION_LAYER:
5207                 {
5208                         struct sctp_setadaptation *adap_bits;
5209
5210                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5211                         SCTP_INP_WLOCK(inp);
5212                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5213                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5214                         SCTP_INP_WUNLOCK(inp);
5215                         break;
5216                 }
5217 #ifdef SCTP_DEBUG
5218         case SCTP_SET_INITIAL_DBG_SEQ:
5219                 {
5220                         uint32_t *vvv;
5221
5222                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5223                         SCTP_INP_WLOCK(inp);
5224                         inp->sctp_ep.initial_sequence_debug = *vvv;
5225                         SCTP_INP_WUNLOCK(inp);
5226                         break;
5227                 }
5228 #endif
5229         case SCTP_DEFAULT_SEND_PARAM:
5230                 {
5231                         struct sctp_sndrcvinfo *s_info;
5232
5233                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5234                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5235
5236                         if (stcb) {
5237                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5238                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5239                                 } else {
5240                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5241                                         error = EINVAL;
5242                                 }
5243                                 SCTP_TCB_UNLOCK(stcb);
5244                         } else {
5245                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5246                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5247                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5248                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5249                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5250                                         SCTP_INP_WLOCK(inp);
5251                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5252                                         SCTP_INP_WUNLOCK(inp);
5253                                 }
5254                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5255                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5256                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5257                                         SCTP_INP_RLOCK(inp);
5258                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5259                                                 SCTP_TCB_LOCK(stcb);
5260                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5261                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5262                                                 }
5263                                                 SCTP_TCB_UNLOCK(stcb);
5264                                         }
5265                                         SCTP_INP_RUNLOCK(inp);
5266                                 }
5267                         }
5268                         break;
5269                 }
5270         case SCTP_PEER_ADDR_PARAMS:
5271                 {
5272                         struct sctp_paddrparams *paddrp;
5273                         struct sctp_nets *net;
5274                         struct sockaddr *addr;
5275 #if defined(INET) && defined(INET6)
5276                         struct sockaddr_in sin_store;
5277 #endif
5278
5279                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5280                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5281
5282 #if defined(INET) && defined(INET6)
5283                         if (paddrp->spp_address.ss_family == AF_INET6) {
5284                                 struct sockaddr_in6 *sin6;
5285
5286                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5287                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5288                                         in6_sin6_2_sin(&sin_store, sin6);
5289                                         addr = (struct sockaddr *)&sin_store;
5290                                 } else {
5291                                         addr = (struct sockaddr *)&paddrp->spp_address;
5292                                 }
5293                         } else {
5294                                 addr = (struct sockaddr *)&paddrp->spp_address;
5295                         }
5296 #else
5297                         addr = (struct sockaddr *)&paddrp->spp_address;
5298 #endif
5299                         if (stcb != NULL) {
5300                                 net = sctp_findnet(stcb, addr);
5301                         } else {
5302                                 /*
5303                                  * We increment here since
5304                                  * sctp_findassociation_ep_addr() wil do a
5305                                  * decrement if it finds the stcb as long as
5306                                  * the locked tcb (last argument) is NOT a
5307                                  * TCB.. aka NULL.
5308                                  */
5309                                 net = NULL;
5310                                 SCTP_INP_INCR_REF(inp);
5311                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5312                                     &net, NULL, NULL);
5313                                 if (stcb == NULL) {
5314                                         SCTP_INP_DECR_REF(inp);
5315                                 }
5316                         }
5317                         if ((stcb != NULL) && (net == NULL)) {
5318 #ifdef INET
5319                                 if (addr->sa_family == AF_INET) {
5320
5321                                         struct sockaddr_in *sin;
5322
5323                                         sin = (struct sockaddr_in *)addr;
5324                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5325                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5326                                                 SCTP_TCB_UNLOCK(stcb);
5327                                                 error = EINVAL;
5328                                                 break;
5329                                         }
5330                                 } else
5331 #endif
5332 #ifdef INET6
5333                                 if (addr->sa_family == AF_INET6) {
5334                                         struct sockaddr_in6 *sin6;
5335
5336                                         sin6 = (struct sockaddr_in6 *)addr;
5337                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5338                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5339                                                 SCTP_TCB_UNLOCK(stcb);
5340                                                 error = EINVAL;
5341                                                 break;
5342                                         }
5343                                 } else
5344 #endif
5345                                 {
5346                                         error = EAFNOSUPPORT;
5347                                         SCTP_TCB_UNLOCK(stcb);
5348                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5349                                         break;
5350                                 }
5351                         }
5352                         /* sanity checks */
5353                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5354                                 if (stcb)
5355                                         SCTP_TCB_UNLOCK(stcb);
5356                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5357                                 return (EINVAL);
5358                         }
5359
5360                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5361                                 if (stcb)
5362                                         SCTP_TCB_UNLOCK(stcb);
5363                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5364                                 return (EINVAL);
5365                         }
5366                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5367                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5368                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5369                                 if (stcb)
5370                                         SCTP_TCB_UNLOCK(stcb);
5371                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5372                                 return (EINVAL);
5373                         }
5374
5375                         if (stcb != NULL) {
5376                                 /************************TCB SPECIFIC SET ******************/
5377                                 if (net != NULL) {
5378                                         /************************NET SPECIFIC SET ******************/
5379                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5380                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5381                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5382                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5383                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5384                                                 }
5385                                                 net->dest_state |= SCTP_ADDR_NOHB;
5386                                         }
5387                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5388                                                 if (paddrp->spp_hbinterval) {
5389                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5390                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5391                                                         net->heart_beat_delay = 0;
5392                                                 }
5393                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5394                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5395                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5396                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5397                                         }
5398                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5399                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5400                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5401                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5402                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5403                                                 }
5404                                         }
5405                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5406                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5407                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5408                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5409                                                 }
5410                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5411                                                 net->mtu = paddrp->spp_pathmtu;
5412                                                 switch (net->ro._l_addr.sa.sa_family) {
5413 #ifdef INET
5414                                                 case AF_INET:
5415                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5416                                                         break;
5417 #endif
5418 #ifdef INET6
5419                                                 case AF_INET6:
5420                                                         net->mtu += SCTP_MIN_OVERHEAD;
5421                                                         break;
5422 #endif
5423                                                 default:
5424                                                         break;
5425                                                 }
5426                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5427                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5428                                                 }
5429                                         }
5430                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5431                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5432                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5433                                                 }
5434                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5435                                         }
5436                                         if (paddrp->spp_pathmaxrxt) {
5437                                                 if (net->dest_state & SCTP_ADDR_PF) {
5438                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5439                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5440                                                         }
5441                                                 } else {
5442                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5443                                                             (net->error_count > net->pf_threshold)) {
5444                                                                 net->dest_state |= SCTP_ADDR_PF;
5445                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5446                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5447                                                                     stcb->sctp_ep, stcb, net,
5448                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5449                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5450                                                         }
5451                                                 }
5452                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5453                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5454                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5455                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5456                                                         }
5457                                                 } else {
5458                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5459                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5460                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5461                                                         }
5462                                                 }
5463                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5464                                         }
5465                                         if (paddrp->spp_flags & SPP_DSCP) {
5466                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5467                                                 net->dscp |= 0x01;
5468                                         }
5469 #ifdef INET6
5470                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5471                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5472                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5473                                                         net->flowlabel |= 0x80000000;
5474                                                 }
5475                                         }
5476 #endif
5477                                 } else {
5478                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5479                                         if (paddrp->spp_pathmaxrxt != 0) {
5480                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5481                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5482                                                         if (net->dest_state & SCTP_ADDR_PF) {
5483                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5484                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5485                                                                 }
5486                                                         } else {
5487                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5488                                                                     (net->error_count > net->pf_threshold)) {
5489                                                                         net->dest_state |= SCTP_ADDR_PF;
5490                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5491                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5492                                                                             stcb->sctp_ep, stcb, net,
5493                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5494                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5495                                                                 }
5496                                                         }
5497                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5498                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5499                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5500                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5501                                                                 }
5502                                                         } else {
5503                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5504                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5505                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5506                                                                 }
5507                                                         }
5508                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5509                                                 }
5510                                         }
5511
5512                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5513                                                 if (paddrp->spp_hbinterval != 0) {
5514                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5515                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5516                                                         stcb->asoc.heart_beat_delay = 0;
5517                                                 }
5518                                                 /* Turn back on the timer */
5519                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5520                                                         if (paddrp->spp_hbinterval != 0) {
5521                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5522                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5523                                                                 net->heart_beat_delay = 0;
5524                                                         }
5525                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5526                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5527                                                         }
5528                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5529                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5530                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5531                                                 }
5532                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5533                                         }
5534                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5535                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5536                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5537                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5538                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5539                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5540                                                                             inp, stcb, net,
5541                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5542                                                                 }
5543                                                         }
5544                                                 }
5545                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5546                                         }
5547                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5548                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5549                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5550                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5551                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5552                                                         }
5553                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5554                                                         net->mtu = paddrp->spp_pathmtu;
5555                                                         switch (net->ro._l_addr.sa.sa_family) {
5556 #ifdef INET
5557                                                         case AF_INET:
5558                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5559                                                                 break;
5560 #endif
5561 #ifdef INET6
5562                                                         case AF_INET6:
5563                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5564                                                                 break;
5565 #endif
5566                                                         default:
5567                                                                 break;
5568                                                         }
5569                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5570                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5571                                                         }
5572                                                 }
5573                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5574                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5575                                         }
5576                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5577                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5578                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5579                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5580                                                         }
5581                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5582                                                 }
5583                                                 stcb->asoc.default_mtu = 0;
5584                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5585                                         }
5586                                         if (paddrp->spp_flags & SPP_DSCP) {
5587                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5588                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5589                                                         net->dscp |= 0x01;
5590                                                 }
5591                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5592                                                 stcb->asoc.default_dscp |= 0x01;
5593                                         }
5594 #ifdef INET6
5595                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5596                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5597                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5598                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5599                                                                 net->flowlabel |= 0x80000000;
5600                                                         }
5601                                                 }
5602                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5603                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5604                                         }
5605 #endif
5606                                 }
5607                                 SCTP_TCB_UNLOCK(stcb);
5608                         } else {
5609                                 /************************NO TCB, SET TO default stuff ******************/
5610                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5611                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5612                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5613                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5614                                         SCTP_INP_WLOCK(inp);
5615                                         /*
5616                                          * For the TOS/FLOWLABEL stuff you
5617                                          * set it with the options on the
5618                                          * socket
5619                                          */
5620                                         if (paddrp->spp_pathmaxrxt != 0) {
5621                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5622                                         }
5623
5624                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5625                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5626                                         else if (paddrp->spp_hbinterval != 0) {
5627                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5628                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5629                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5630                                         }
5631
5632                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5633                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5634                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5635                                                 } else if (paddrp->spp_hbinterval) {
5636                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5637                                                 }
5638                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5639                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5640                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5641                                         }
5642                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5643                                                 inp->sctp_ep.default_mtu = 0;
5644                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5645                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5646                                                 inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5647                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5648                                         }
5649                                         if (paddrp->spp_flags & SPP_DSCP) {
5650                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5651                                                 inp->sctp_ep.default_dscp |= 0x01;
5652                                         }
5653 #ifdef INET6
5654                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5655                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5656                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5657                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5658                                                 }
5659                                         }
5660 #endif
5661                                         SCTP_INP_WUNLOCK(inp);
5662                                 } else {
5663                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5664                                         error = EINVAL;
5665                                 }
5666                         }
5667                         break;
5668                 }
5669         case SCTP_RTOINFO:
5670                 {
5671                         struct sctp_rtoinfo *srto;
5672                         uint32_t new_init, new_min, new_max;
5673
5674                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5675                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5676
5677                         if (stcb) {
5678                                 if (srto->srto_initial)
5679                                         new_init = srto->srto_initial;
5680                                 else
5681                                         new_init = stcb->asoc.initial_rto;
5682                                 if (srto->srto_max)
5683                                         new_max = srto->srto_max;
5684                                 else
5685                                         new_max = stcb->asoc.maxrto;
5686                                 if (srto->srto_min)
5687                                         new_min = srto->srto_min;
5688                                 else
5689                                         new_min = stcb->asoc.minrto;
5690                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5691                                         stcb->asoc.initial_rto = new_init;
5692                                         stcb->asoc.maxrto = new_max;
5693                                         stcb->asoc.minrto = new_min;
5694                                 } else {
5695                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5696                                         error = EINVAL;
5697                                 }
5698                                 SCTP_TCB_UNLOCK(stcb);
5699                         } else {
5700                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5701                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5702                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5703                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5704                                         SCTP_INP_WLOCK(inp);
5705                                         if (srto->srto_initial)
5706                                                 new_init = srto->srto_initial;
5707                                         else
5708                                                 new_init = inp->sctp_ep.initial_rto;
5709                                         if (srto->srto_max)
5710                                                 new_max = srto->srto_max;
5711                                         else
5712                                                 new_max = inp->sctp_ep.sctp_maxrto;
5713                                         if (srto->srto_min)
5714                                                 new_min = srto->srto_min;
5715                                         else
5716                                                 new_min = inp->sctp_ep.sctp_minrto;
5717                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5718                                                 inp->sctp_ep.initial_rto = new_init;
5719                                                 inp->sctp_ep.sctp_maxrto = new_max;
5720                                                 inp->sctp_ep.sctp_minrto = new_min;
5721                                         } else {
5722                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5723                                                 error = EINVAL;
5724                                         }
5725                                         SCTP_INP_WUNLOCK(inp);
5726                                 } else {
5727                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5728                                         error = EINVAL;
5729                                 }
5730                         }
5731                         break;
5732                 }
5733         case SCTP_ASSOCINFO:
5734                 {
5735                         struct sctp_assocparams *sasoc;
5736
5737                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5738                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5739                         if (sasoc->sasoc_cookie_life) {
5740                                 /* boundary check the cookie life */
5741                                 if (sasoc->sasoc_cookie_life < 1000)
5742                                         sasoc->sasoc_cookie_life = 1000;
5743                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5744                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5745                                 }
5746                         }
5747                         if (stcb) {
5748                                 if (sasoc->sasoc_asocmaxrxt)
5749                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5750                                 if (sasoc->sasoc_cookie_life) {
5751                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5752                                 }
5753                                 SCTP_TCB_UNLOCK(stcb);
5754                         } else {
5755                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5756                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5757                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5758                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5759                                         SCTP_INP_WLOCK(inp);
5760                                         if (sasoc->sasoc_asocmaxrxt)
5761                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5762                                         if (sasoc->sasoc_cookie_life) {
5763                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5764                                         }
5765                                         SCTP_INP_WUNLOCK(inp);
5766                                 } else {
5767                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5768                                         error = EINVAL;
5769                                 }
5770                         }
5771                         break;
5772                 }
5773         case SCTP_INITMSG:
5774                 {
5775                         struct sctp_initmsg *sinit;
5776
5777                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5778                         SCTP_INP_WLOCK(inp);
5779                         if (sinit->sinit_num_ostreams)
5780                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5781
5782                         if (sinit->sinit_max_instreams)
5783                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5784
5785                         if (sinit->sinit_max_attempts)
5786                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5787
5788                         if (sinit->sinit_max_init_timeo)
5789                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5790                         SCTP_INP_WUNLOCK(inp);
5791                         break;
5792                 }
5793         case SCTP_PRIMARY_ADDR:
5794                 {
5795                         struct sctp_setprim *spa;
5796                         struct sctp_nets *net;
5797                         struct sockaddr *addr;
5798 #if defined(INET) && defined(INET6)
5799                         struct sockaddr_in sin_store;
5800 #endif
5801
5802                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5803                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5804
5805 #if defined(INET) && defined(INET6)
5806                         if (spa->ssp_addr.ss_family == AF_INET6) {
5807                                 struct sockaddr_in6 *sin6;
5808
5809                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5810                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5811                                         in6_sin6_2_sin(&sin_store, sin6);
5812                                         addr = (struct sockaddr *)&sin_store;
5813                                 } else {
5814                                         addr = (struct sockaddr *)&spa->ssp_addr;
5815                                 }
5816                         } else {
5817                                 addr = (struct sockaddr *)&spa->ssp_addr;
5818                         }
5819 #else
5820                         addr = (struct sockaddr *)&spa->ssp_addr;
5821 #endif
5822                         if (stcb != NULL) {
5823                                 net = sctp_findnet(stcb, addr);
5824                         } else {
5825                                 /*
5826                                  * We increment here since
5827                                  * sctp_findassociation_ep_addr() wil do a
5828                                  * decrement if it finds the stcb as long as
5829                                  * the locked tcb (last argument) is NOT a
5830                                  * TCB.. aka NULL.
5831                                  */
5832                                 net = NULL;
5833                                 SCTP_INP_INCR_REF(inp);
5834                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5835                                     &net, NULL, NULL);
5836                                 if (stcb == NULL) {
5837                                         SCTP_INP_DECR_REF(inp);
5838                                 }
5839                         }
5840
5841                         if ((stcb != NULL) && (net != NULL)) {
5842                                 if (net != stcb->asoc.primary_destination) {
5843                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5844                                                 /* Ok we need to set it */
5845                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5846                                                         if ((stcb->asoc.alternate) &&
5847                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5848                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5849                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5850                                                                 stcb->asoc.alternate = NULL;
5851                                                         }
5852                                                 } else {
5853                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5854                                                         error = EINVAL;
5855                                                 }
5856                                         } else {
5857                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5858                                                 error = EINVAL;
5859                                         }
5860                                 }
5861                         } else {
5862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5863                                 error = EINVAL;
5864                         }
5865                         if (stcb != NULL) {
5866                                 SCTP_TCB_UNLOCK(stcb);
5867                         }
5868                         break;
5869                 }
5870         case SCTP_SET_DYNAMIC_PRIMARY:
5871                 {
5872                         union sctp_sockstore *ss;
5873
5874                         error = priv_check(curthread,
5875                             PRIV_NETINET_RESERVEDPORT);
5876                         if (error)
5877                                 break;
5878
5879                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5880                         /* SUPER USER CHECK? */
5881                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5882                         break;
5883                 }
5884         case SCTP_SET_PEER_PRIMARY_ADDR:
5885                 {
5886                         struct sctp_setpeerprim *sspp;
5887                         struct sockaddr *addr;
5888 #if defined(INET) && defined(INET6)
5889                         struct sockaddr_in sin_store;
5890 #endif
5891
5892                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5893                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5894                         if (stcb != NULL) {
5895                                 struct sctp_ifa *ifa;
5896
5897 #if defined(INET) && defined(INET6)
5898                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5899                                         struct sockaddr_in6 *sin6;
5900
5901                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5902                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5903                                                 in6_sin6_2_sin(&sin_store, sin6);
5904                                                 addr = (struct sockaddr *)&sin_store;
5905                                         } else {
5906                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5907                                         }
5908                                 } else {
5909                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5910                                 }
5911 #else
5912                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5913 #endif
5914                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5915                                 if (ifa == NULL) {
5916                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5917                                         error = EINVAL;
5918                                         goto out_of_it;
5919                                 }
5920                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5921                                         /*
5922                                          * Must validate the ifa found is in
5923                                          * our ep
5924                                          */
5925                                         struct sctp_laddr *laddr;
5926                                         int found = 0;
5927
5928                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5929                                                 if (laddr->ifa == NULL) {
5930                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5931                                                             __func__);
5932                                                         continue;
5933                                                 }
5934                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5935                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5936                                                         continue;
5937                                                 }
5938                                                 if (laddr->ifa == ifa) {
5939                                                         found = 1;
5940                                                         break;
5941                                                 }
5942                                         }
5943                                         if (!found) {
5944                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5945                                                 error = EINVAL;
5946                                                 goto out_of_it;
5947                                         }
5948                                 } else {
5949                                         switch (addr->sa_family) {
5950 #ifdef INET
5951                                         case AF_INET:
5952                                                 {
5953                                                         struct sockaddr_in *sin;
5954
5955                                                         sin = (struct sockaddr_in *)addr;
5956                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5957                                                             &sin->sin_addr) != 0) {
5958                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5959                                                                 error = EINVAL;
5960                                                                 goto out_of_it;
5961                                                         }
5962                                                         break;
5963                                                 }
5964 #endif
5965 #ifdef INET6
5966                                         case AF_INET6:
5967                                                 {
5968                                                         struct sockaddr_in6 *sin6;
5969
5970                                                         sin6 = (struct sockaddr_in6 *)addr;
5971                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5972                                                             &sin6->sin6_addr) != 0) {
5973                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5974                                                                 error = EINVAL;
5975                                                                 goto out_of_it;
5976                                                         }
5977                                                         break;
5978                                                 }
5979 #endif
5980                                         default:
5981                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5982                                                 error = EINVAL;
5983                                                 goto out_of_it;
5984                                         }
5985                                 }
5986                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5987                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5988                                         error = EINVAL;
5989                                 }
5990                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5991                 out_of_it:
5992                                 SCTP_TCB_UNLOCK(stcb);
5993                         } else {
5994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5995                                 error = EINVAL;
5996                         }
5997                         break;
5998                 }
5999         case SCTP_BINDX_ADD_ADDR:
6000                 {
6001                         struct sctp_getaddresses *addrs;
6002                         struct thread *td;
6003
6004                         td = (struct thread *)p;
6005                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
6006                             optsize);
6007 #ifdef INET
6008                         if (addrs->addr->sa_family == AF_INET) {
6009                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
6010                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6011                                         error = EINVAL;
6012                                         break;
6013                                 }
6014                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
6015                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6016                                         break;
6017                                 }
6018                         } else
6019 #endif
6020 #ifdef INET6
6021                         if (addrs->addr->sa_family == AF_INET6) {
6022                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6023                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6024                                         error = EINVAL;
6025                                         break;
6026                                 }
6027                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6028                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6029                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6030                                         break;
6031                                 }
6032                         } else
6033 #endif
6034                         {
6035                                 error = EAFNOSUPPORT;
6036                                 break;
6037                         }
6038                         sctp_bindx_add_address(so, inp, addrs->addr,
6039                             addrs->sget_assoc_id, vrf_id,
6040                             &error, p);
6041                         break;
6042                 }
6043         case SCTP_BINDX_REM_ADDR:
6044                 {
6045                         struct sctp_getaddresses *addrs;
6046                         struct thread *td;
6047
6048                         td = (struct thread *)p;
6049
6050                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
6051 #ifdef INET
6052                         if (addrs->addr->sa_family == AF_INET) {
6053                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
6054                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6055                                         error = EINVAL;
6056                                         break;
6057                                 }
6058                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
6059                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6060                                         break;
6061                                 }
6062                         } else
6063 #endif
6064 #ifdef INET6
6065                         if (addrs->addr->sa_family == AF_INET6) {
6066                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6067                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6068                                         error = EINVAL;
6069                                         break;
6070                                 }
6071                                 if (td != NULL &&
6072                                     (error = prison_local_ip6(td->td_ucred,
6073                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6074                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6075                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6076                                         break;
6077                                 }
6078                         } else
6079 #endif
6080                         {
6081                                 error = EAFNOSUPPORT;
6082                                 break;
6083                         }
6084                         sctp_bindx_delete_address(inp, addrs->addr,
6085                             addrs->sget_assoc_id, vrf_id,
6086                             &error);
6087                         break;
6088                 }
6089         case SCTP_EVENT:
6090                 {
6091                         struct sctp_event *event;
6092                         uint32_t event_type;
6093
6094                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6095                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6096                         switch (event->se_type) {
6097                         case SCTP_ASSOC_CHANGE:
6098                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6099                                 break;
6100                         case SCTP_PEER_ADDR_CHANGE:
6101                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6102                                 break;
6103                         case SCTP_REMOTE_ERROR:
6104                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6105                                 break;
6106                         case SCTP_SEND_FAILED:
6107                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6108                                 break;
6109                         case SCTP_SHUTDOWN_EVENT:
6110                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6111                                 break;
6112                         case SCTP_ADAPTATION_INDICATION:
6113                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6114                                 break;
6115                         case SCTP_PARTIAL_DELIVERY_EVENT:
6116                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6117                                 break;
6118                         case SCTP_AUTHENTICATION_EVENT:
6119                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6120                                 break;
6121                         case SCTP_STREAM_RESET_EVENT:
6122                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6123                                 break;
6124                         case SCTP_SENDER_DRY_EVENT:
6125                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6126                                 break;
6127                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6128                                 event_type = 0;
6129                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6130                                 error = ENOTSUP;
6131                                 break;
6132                         case SCTP_ASSOC_RESET_EVENT:
6133                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6134                                 break;
6135                         case SCTP_STREAM_CHANGE_EVENT:
6136                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6137                                 break;
6138                         case SCTP_SEND_FAILED_EVENT:
6139                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6140                                 break;
6141                         default:
6142                                 event_type = 0;
6143                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6144                                 error = EINVAL;
6145                                 break;
6146                         }
6147                         if (event_type > 0) {
6148                                 if (stcb) {
6149                                         if (event->se_on) {
6150                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6151                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6152                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6153                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6154                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6155                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6156                                                         }
6157                                                 }
6158                                         } else {
6159                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6160                                         }
6161                                         SCTP_TCB_UNLOCK(stcb);
6162                                 } else {
6163                                         /*
6164                                          * We don't want to send up a storm
6165                                          * of events, so return an error for
6166                                          * sender dry events
6167                                          */
6168                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6169                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6170                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6171                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6172                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6173                                                 error = ENOTSUP;
6174                                                 break;
6175                                         }
6176                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6177                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6178                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6179                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6180                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6181                                                 SCTP_INP_WLOCK(inp);
6182                                                 if (event->se_on) {
6183                                                         sctp_feature_on(inp, event_type);
6184                                                 } else {
6185                                                         sctp_feature_off(inp, event_type);
6186                                                 }
6187                                                 SCTP_INP_WUNLOCK(inp);
6188                                         }
6189                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6190                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6191                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6192                                                 SCTP_INP_RLOCK(inp);
6193                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6194                                                         SCTP_TCB_LOCK(stcb);
6195                                                         if (event->se_on) {
6196                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6197                                                         } else {
6198                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6199                                                         }
6200                                                         SCTP_TCB_UNLOCK(stcb);
6201                                                 }
6202                                                 SCTP_INP_RUNLOCK(inp);
6203                                         }
6204                                 }
6205                         } else {
6206                                 if (stcb) {
6207                                         SCTP_TCB_UNLOCK(stcb);
6208                                 }
6209                         }
6210                         break;
6211                 }
6212         case SCTP_RECVRCVINFO:
6213                 {
6214                         int *onoff;
6215
6216                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6217                         SCTP_INP_WLOCK(inp);
6218                         if (*onoff != 0) {
6219                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6220                         } else {
6221                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6222                         }
6223                         SCTP_INP_WUNLOCK(inp);
6224                         break;
6225                 }
6226         case SCTP_RECVNXTINFO:
6227                 {
6228                         int *onoff;
6229
6230                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6231                         SCTP_INP_WLOCK(inp);
6232                         if (*onoff != 0) {
6233                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6234                         } else {
6235                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6236                         }
6237                         SCTP_INP_WUNLOCK(inp);
6238                         break;
6239                 }
6240         case SCTP_DEFAULT_SNDINFO:
6241                 {
6242                         struct sctp_sndinfo *info;
6243                         uint16_t policy;
6244
6245                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6246                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6247
6248                         if (stcb) {
6249                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6250                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6251                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6252                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6253                                         stcb->asoc.def_send.sinfo_flags |= policy;
6254                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6255                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6256                                 } else {
6257                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6258                                         error = EINVAL;
6259                                 }
6260                                 SCTP_TCB_UNLOCK(stcb);
6261                         } else {
6262                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6263                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6264                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6265                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6266                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6267                                         SCTP_INP_WLOCK(inp);
6268                                         inp->def_send.sinfo_stream = info->snd_sid;
6269                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6270                                         inp->def_send.sinfo_flags = info->snd_flags;
6271                                         inp->def_send.sinfo_flags |= policy;
6272                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6273                                         inp->def_send.sinfo_context = info->snd_context;
6274                                         SCTP_INP_WUNLOCK(inp);
6275                                 }
6276                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6277                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6278                                     (info->snd_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                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6283                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6284                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6285                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6286                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6287                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6288                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6289                                                 }
6290                                                 SCTP_TCB_UNLOCK(stcb);
6291                                         }
6292                                         SCTP_INP_RUNLOCK(inp);
6293                                 }
6294                         }
6295                         break;
6296                 }
6297         case SCTP_DEFAULT_PRINFO:
6298                 {
6299                         struct sctp_default_prinfo *info;
6300
6301                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6302                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6303
6304                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6305                                 if (stcb) {
6306                                         SCTP_TCB_UNLOCK(stcb);
6307                                 }
6308                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6309                                 error = EINVAL;
6310                                 break;
6311                         }
6312                         if (stcb) {
6313                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6314                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6315                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6316                                 SCTP_TCB_UNLOCK(stcb);
6317                         } else {
6318                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6319                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6320                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6321                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6322                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6323                                         SCTP_INP_WLOCK(inp);
6324                                         inp->def_send.sinfo_flags &= 0xfff0;
6325                                         inp->def_send.sinfo_flags |= info->pr_policy;
6326                                         inp->def_send.sinfo_timetolive = info->pr_value;
6327                                         SCTP_INP_WUNLOCK(inp);
6328                                 }
6329                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6330                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6331                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6332                                         SCTP_INP_RLOCK(inp);
6333                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6334                                                 SCTP_TCB_LOCK(stcb);
6335                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6336                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6337                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6338                                                 SCTP_TCB_UNLOCK(stcb);
6339                                         }
6340                                         SCTP_INP_RUNLOCK(inp);
6341                                 }
6342                         }
6343                         break;
6344                 }
6345         case SCTP_PEER_ADDR_THLDS:
6346                 /* Applies to the specific association */
6347                 {
6348                         struct sctp_paddrthlds *thlds;
6349                         struct sctp_nets *net;
6350                         struct sockaddr *addr;
6351 #if defined(INET) && defined(INET6)
6352                         struct sockaddr_in sin_store;
6353 #endif
6354
6355                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6356                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6357
6358 #if defined(INET) && defined(INET6)
6359                         if (thlds->spt_address.ss_family == AF_INET6) {
6360                                 struct sockaddr_in6 *sin6;
6361
6362                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6363                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6364                                         in6_sin6_2_sin(&sin_store, sin6);
6365                                         addr = (struct sockaddr *)&sin_store;
6366                                 } else {
6367                                         addr = (struct sockaddr *)&thlds->spt_address;
6368                                 }
6369                         } else {
6370                                 addr = (struct sockaddr *)&thlds->spt_address;
6371                         }
6372 #else
6373                         addr = (struct sockaddr *)&thlds->spt_address;
6374 #endif
6375                         if (stcb != NULL) {
6376                                 net = sctp_findnet(stcb, addr);
6377                         } else {
6378                                 /*
6379                                  * We increment here since
6380                                  * sctp_findassociation_ep_addr() wil do a
6381                                  * decrement if it finds the stcb as long as
6382                                  * the locked tcb (last argument) is NOT a
6383                                  * TCB.. aka NULL.
6384                                  */
6385                                 net = NULL;
6386                                 SCTP_INP_INCR_REF(inp);
6387                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6388                                     &net, NULL, NULL);
6389                                 if (stcb == NULL) {
6390                                         SCTP_INP_DECR_REF(inp);
6391                                 }
6392                         }
6393                         if ((stcb != NULL) && (net == NULL)) {
6394 #ifdef INET
6395                                 if (addr->sa_family == AF_INET) {
6396
6397                                         struct sockaddr_in *sin;
6398
6399                                         sin = (struct sockaddr_in *)addr;
6400                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6401                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6402                                                 SCTP_TCB_UNLOCK(stcb);
6403                                                 error = EINVAL;
6404                                                 break;
6405                                         }
6406                                 } else
6407 #endif
6408 #ifdef INET6
6409                                 if (addr->sa_family == AF_INET6) {
6410                                         struct sockaddr_in6 *sin6;
6411
6412                                         sin6 = (struct sockaddr_in6 *)addr;
6413                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6414                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6415                                                 SCTP_TCB_UNLOCK(stcb);
6416                                                 error = EINVAL;
6417                                                 break;
6418                                         }
6419                                 } else
6420 #endif
6421                                 {
6422                                         error = EAFNOSUPPORT;
6423                                         SCTP_TCB_UNLOCK(stcb);
6424                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6425                                         break;
6426                                 }
6427                         }
6428                         if (thlds->spt_pathcpthld != 0xffff) {
6429                                 if (stcb != NULL) {
6430                                         SCTP_TCB_UNLOCK(stcb);
6431                                 }
6432                                 error = EINVAL;
6433                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6434                                 break;
6435                         }
6436                         if (stcb != NULL) {
6437                                 if (net != NULL) {
6438                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6439                                         net->pf_threshold = thlds->spt_pathpfthld;
6440                                         if (net->dest_state & SCTP_ADDR_PF) {
6441                                                 if ((net->error_count > net->failure_threshold) ||
6442                                                     (net->error_count <= net->pf_threshold)) {
6443                                                         net->dest_state &= ~SCTP_ADDR_PF;
6444                                                 }
6445                                         } else {
6446                                                 if ((net->error_count > net->pf_threshold) &&
6447                                                     (net->error_count <= net->failure_threshold)) {
6448                                                         net->dest_state |= SCTP_ADDR_PF;
6449                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6450                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6451                                                             stcb->sctp_ep, stcb, net,
6452                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6453                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6454                                                 }
6455                                         }
6456                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6457                                                 if (net->error_count > net->failure_threshold) {
6458                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6459                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6460                                                 }
6461                                         } else {
6462                                                 if (net->error_count <= net->failure_threshold) {
6463                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6464                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6465                                                 }
6466                                         }
6467                                 } else {
6468                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6469                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6470                                                 net->pf_threshold = thlds->spt_pathpfthld;
6471                                                 if (net->dest_state & SCTP_ADDR_PF) {
6472                                                         if ((net->error_count > net->failure_threshold) ||
6473                                                             (net->error_count <= net->pf_threshold)) {
6474                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6475                                                         }
6476                                                 } else {
6477                                                         if ((net->error_count > net->pf_threshold) &&
6478                                                             (net->error_count <= net->failure_threshold)) {
6479                                                                 net->dest_state |= SCTP_ADDR_PF;
6480                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6481                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6482                                                                     stcb->sctp_ep, stcb, net,
6483                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6484                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6485                                                         }
6486                                                 }
6487                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6488                                                         if (net->error_count > net->failure_threshold) {
6489                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6490                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6491                                                         }
6492                                                 } else {
6493                                                         if (net->error_count <= net->failure_threshold) {
6494                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6495                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6496                                                         }
6497                                                 }
6498                                         }
6499                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6500                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6501                                 }
6502                                 SCTP_TCB_UNLOCK(stcb);
6503                         } else {
6504                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6505                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6506                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6507                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6508                                         SCTP_INP_WLOCK(inp);
6509                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6510                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6511                                         SCTP_INP_WUNLOCK(inp);
6512                                 } else {
6513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6514                                         error = EINVAL;
6515                                 }
6516                         }
6517                         break;
6518                 }
6519         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6520                 {
6521                         struct sctp_udpencaps *encaps;
6522                         struct sctp_nets *net;
6523                         struct sockaddr *addr;
6524 #if defined(INET) && defined(INET6)
6525                         struct sockaddr_in sin_store;
6526 #endif
6527
6528                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6529                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6530
6531 #if defined(INET) && defined(INET6)
6532                         if (encaps->sue_address.ss_family == AF_INET6) {
6533                                 struct sockaddr_in6 *sin6;
6534
6535                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6536                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6537                                         in6_sin6_2_sin(&sin_store, sin6);
6538                                         addr = (struct sockaddr *)&sin_store;
6539                                 } else {
6540                                         addr = (struct sockaddr *)&encaps->sue_address;
6541                                 }
6542                         } else {
6543                                 addr = (struct sockaddr *)&encaps->sue_address;
6544                         }
6545 #else
6546                         addr = (struct sockaddr *)&encaps->sue_address;
6547 #endif
6548                         if (stcb != NULL) {
6549                                 net = sctp_findnet(stcb, addr);
6550                         } else {
6551                                 /*
6552                                  * We increment here since
6553                                  * sctp_findassociation_ep_addr() wil do a
6554                                  * decrement if it finds the stcb as long as
6555                                  * the locked tcb (last argument) is NOT a
6556                                  * TCB.. aka NULL.
6557                                  */
6558                                 net = NULL;
6559                                 SCTP_INP_INCR_REF(inp);
6560                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6561                                 if (stcb == NULL) {
6562                                         SCTP_INP_DECR_REF(inp);
6563                                 }
6564                         }
6565                         if ((stcb != NULL) && (net == NULL)) {
6566 #ifdef INET
6567                                 if (addr->sa_family == AF_INET) {
6568
6569                                         struct sockaddr_in *sin;
6570
6571                                         sin = (struct sockaddr_in *)addr;
6572                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6573                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6574                                                 SCTP_TCB_UNLOCK(stcb);
6575                                                 error = EINVAL;
6576                                                 break;
6577                                         }
6578                                 } else
6579 #endif
6580 #ifdef INET6
6581                                 if (addr->sa_family == AF_INET6) {
6582                                         struct sockaddr_in6 *sin6;
6583
6584                                         sin6 = (struct sockaddr_in6 *)addr;
6585                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6586                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6587                                                 SCTP_TCB_UNLOCK(stcb);
6588                                                 error = EINVAL;
6589                                                 break;
6590                                         }
6591                                 } else
6592 #endif
6593                                 {
6594                                         error = EAFNOSUPPORT;
6595                                         SCTP_TCB_UNLOCK(stcb);
6596                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6597                                         break;
6598                                 }
6599                         }
6600
6601                         if (stcb != NULL) {
6602                                 if (net != NULL) {
6603                                         net->port = encaps->sue_port;
6604                                 } else {
6605                                         stcb->asoc.port = encaps->sue_port;
6606                                 }
6607                                 SCTP_TCB_UNLOCK(stcb);
6608                         } else {
6609                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6610                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6611                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6612                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6613                                         SCTP_INP_WLOCK(inp);
6614                                         inp->sctp_ep.port = encaps->sue_port;
6615                                         SCTP_INP_WUNLOCK(inp);
6616                                 } else {
6617                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6618                                         error = EINVAL;
6619                                 }
6620                         }
6621                         break;
6622                 }
6623         case SCTP_ECN_SUPPORTED:
6624                 {
6625                         struct sctp_assoc_value *av;
6626
6627                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6628                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6629
6630                         if (stcb) {
6631                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6632                                 error = EINVAL;
6633                                 SCTP_TCB_UNLOCK(stcb);
6634                         } else {
6635                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6636                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6637                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6638                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6639                                         SCTP_INP_WLOCK(inp);
6640                                         if (av->assoc_value == 0) {
6641                                                 inp->ecn_supported = 0;
6642                                         } else {
6643                                                 inp->ecn_supported = 1;
6644                                         }
6645                                         SCTP_INP_WUNLOCK(inp);
6646                                 } else {
6647                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6648                                         error = EINVAL;
6649                                 }
6650                         }
6651                         break;
6652                 }
6653         case SCTP_PR_SUPPORTED:
6654                 {
6655                         struct sctp_assoc_value *av;
6656
6657                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6658                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6659
6660                         if (stcb) {
6661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6662                                 error = EINVAL;
6663                                 SCTP_TCB_UNLOCK(stcb);
6664                         } else {
6665                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6666                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6667                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6668                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6669                                         SCTP_INP_WLOCK(inp);
6670                                         if (av->assoc_value == 0) {
6671                                                 inp->prsctp_supported = 0;
6672                                         } else {
6673                                                 inp->prsctp_supported = 1;
6674                                         }
6675                                         SCTP_INP_WUNLOCK(inp);
6676                                 } else {
6677                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6678                                         error = EINVAL;
6679                                 }
6680                         }
6681                         break;
6682                 }
6683         case SCTP_AUTH_SUPPORTED:
6684                 {
6685                         struct sctp_assoc_value *av;
6686
6687                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6688                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6689
6690                         if (stcb) {
6691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6692                                 error = EINVAL;
6693                                 SCTP_TCB_UNLOCK(stcb);
6694                         } else {
6695                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6696                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6697                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6698                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6699                                         if ((av->assoc_value == 0) &&
6700                                             (inp->asconf_supported == 1)) {
6701                                                 /*
6702                                                  * AUTH is required for
6703                                                  * ASCONF
6704                                                  */
6705                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6706                                                 error = EINVAL;
6707                                         } else {
6708                                                 SCTP_INP_WLOCK(inp);
6709                                                 if (av->assoc_value == 0) {
6710                                                         inp->auth_supported = 0;
6711                                                 } else {
6712                                                         inp->auth_supported = 1;
6713                                                 }
6714                                                 SCTP_INP_WUNLOCK(inp);
6715                                         }
6716                                 } else {
6717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6718                                         error = EINVAL;
6719                                 }
6720                         }
6721                         break;
6722                 }
6723         case SCTP_ASCONF_SUPPORTED:
6724                 {
6725                         struct sctp_assoc_value *av;
6726
6727                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6728                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6729
6730                         if (stcb) {
6731                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6732                                 error = EINVAL;
6733                                 SCTP_TCB_UNLOCK(stcb);
6734                         } else {
6735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6737                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6738                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6739                                         if ((av->assoc_value != 0) &&
6740                                             (inp->auth_supported == 0)) {
6741                                                 /*
6742                                                  * AUTH is required for
6743                                                  * ASCONF
6744                                                  */
6745                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6746                                                 error = EINVAL;
6747                                         } else {
6748                                                 SCTP_INP_WLOCK(inp);
6749                                                 if (av->assoc_value == 0) {
6750                                                         inp->asconf_supported = 0;
6751                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6752                                                             inp->sctp_ep.local_auth_chunks);
6753                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6754                                                             inp->sctp_ep.local_auth_chunks);
6755                                                 } else {
6756                                                         inp->asconf_supported = 1;
6757                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6758                                                             inp->sctp_ep.local_auth_chunks);
6759                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6760                                                             inp->sctp_ep.local_auth_chunks);
6761                                                 }
6762                                                 SCTP_INP_WUNLOCK(inp);
6763                                         }
6764                                 } else {
6765                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6766                                         error = EINVAL;
6767                                 }
6768                         }
6769                         break;
6770                 }
6771         case SCTP_RECONFIG_SUPPORTED:
6772                 {
6773                         struct sctp_assoc_value *av;
6774
6775                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6776                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6777
6778                         if (stcb) {
6779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6780                                 error = EINVAL;
6781                                 SCTP_TCB_UNLOCK(stcb);
6782                         } else {
6783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6785                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6786                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6787                                         SCTP_INP_WLOCK(inp);
6788                                         if (av->assoc_value == 0) {
6789                                                 inp->reconfig_supported = 0;
6790                                         } else {
6791                                                 inp->reconfig_supported = 1;
6792                                         }
6793                                         SCTP_INP_WUNLOCK(inp);
6794                                 } else {
6795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6796                                         error = EINVAL;
6797                                 }
6798                         }
6799                         break;
6800                 }
6801         case SCTP_NRSACK_SUPPORTED:
6802                 {
6803                         struct sctp_assoc_value *av;
6804
6805                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6806                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6807
6808                         if (stcb) {
6809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6810                                 error = EINVAL;
6811                                 SCTP_TCB_UNLOCK(stcb);
6812                         } else {
6813                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6814                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6815                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6816                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6817                                         SCTP_INP_WLOCK(inp);
6818                                         if (av->assoc_value == 0) {
6819                                                 inp->nrsack_supported = 0;
6820                                         } else {
6821                                                 inp->nrsack_supported = 1;
6822                                         }
6823                                         SCTP_INP_WUNLOCK(inp);
6824                                 } else {
6825                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6826                                         error = EINVAL;
6827                                 }
6828                         }
6829                         break;
6830                 }
6831         case SCTP_PKTDROP_SUPPORTED:
6832                 {
6833                         struct sctp_assoc_value *av;
6834
6835                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6836                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6837
6838                         if (stcb) {
6839                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6840                                 error = EINVAL;
6841                                 SCTP_TCB_UNLOCK(stcb);
6842                         } else {
6843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6845                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6846                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6847                                         SCTP_INP_WLOCK(inp);
6848                                         if (av->assoc_value == 0) {
6849                                                 inp->pktdrop_supported = 0;
6850                                         } else {
6851                                                 inp->pktdrop_supported = 1;
6852                                         }
6853                                         SCTP_INP_WUNLOCK(inp);
6854                                 } else {
6855                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6856                                         error = EINVAL;
6857                                 }
6858                         }
6859                         break;
6860                 }
6861         case SCTP_MAX_CWND:
6862                 {
6863                         struct sctp_assoc_value *av;
6864                         struct sctp_nets *net;
6865
6866                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6867                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6868
6869                         if (stcb) {
6870                                 stcb->asoc.max_cwnd = av->assoc_value;
6871                                 if (stcb->asoc.max_cwnd > 0) {
6872                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6873                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6874                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6875                                                         net->cwnd = stcb->asoc.max_cwnd;
6876                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6877                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6878                                                         }
6879                                                 }
6880                                         }
6881                                 }
6882                                 SCTP_TCB_UNLOCK(stcb);
6883                         } else {
6884                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6885                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6886                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6887                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6888                                         SCTP_INP_WLOCK(inp);
6889                                         inp->max_cwnd = av->assoc_value;
6890                                         SCTP_INP_WUNLOCK(inp);
6891                                 } else {
6892                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6893                                         error = EINVAL;
6894                                 }
6895                         }
6896                         break;
6897                 }
6898         default:
6899                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6900                 error = ENOPROTOOPT;
6901                 break;
6902         }                       /* end switch (opt) */
6903         return (error);
6904 }
6905
6906 int
6907 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6908 {
6909         void *optval = NULL;
6910         size_t optsize = 0;
6911         void *p;
6912         int error = 0;
6913         struct sctp_inpcb *inp;
6914
6915         if ((sopt->sopt_level == SOL_SOCKET) &&
6916             (sopt->sopt_name == SO_SETFIB)) {
6917                 inp = (struct sctp_inpcb *)so->so_pcb;
6918                 if (inp == NULL) {
6919                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6920                         return (EINVAL);
6921                 }
6922                 SCTP_INP_WLOCK(inp);
6923                 inp->fibnum = so->so_fibnum;
6924                 SCTP_INP_WUNLOCK(inp);
6925                 return (0);
6926         }
6927         if (sopt->sopt_level != IPPROTO_SCTP) {
6928                 /* wrong proto level... send back up to IP */
6929 #ifdef INET6
6930                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6931                         error = ip6_ctloutput(so, sopt);
6932 #endif                          /* INET6 */
6933 #if defined(INET) && defined(INET6)
6934                 else
6935 #endif
6936 #ifdef INET
6937                         error = ip_ctloutput(so, sopt);
6938 #endif
6939                 return (error);
6940         }
6941         optsize = sopt->sopt_valsize;
6942         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6943                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6944                 return (ENOBUFS);
6945         }
6946         if (optsize) {
6947                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6948                 if (optval == NULL) {
6949                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6950                         return (ENOBUFS);
6951                 }
6952                 error = sooptcopyin(sopt, optval, optsize, optsize);
6953                 if (error) {
6954                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6955                         goto out;
6956                 }
6957         }
6958         p = (void *)sopt->sopt_td;
6959         if (sopt->sopt_dir == SOPT_SET) {
6960                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6961         } else if (sopt->sopt_dir == SOPT_GET) {
6962                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6963         } else {
6964                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6965                 error = EINVAL;
6966         }
6967         if ((error == 0) && (optval != NULL)) {
6968                 error = sooptcopyout(sopt, optval, optsize);
6969                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6970         } else if (optval != NULL) {
6971                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6972         }
6973 out:
6974         return (error);
6975 }
6976
6977 #ifdef INET
6978 static int
6979 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6980 {
6981         int error = 0;
6982         int create_lock_on = 0;
6983         uint32_t vrf_id;
6984         struct sctp_inpcb *inp;
6985         struct sctp_tcb *stcb = NULL;
6986
6987         inp = (struct sctp_inpcb *)so->so_pcb;
6988         if (inp == NULL) {
6989                 /* I made the same as TCP since we are not setup? */
6990                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6991                 return (ECONNRESET);
6992         }
6993         if (addr == NULL) {
6994                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6995                 return EINVAL;
6996         }
6997
6998         switch (addr->sa_family) {
6999 #ifdef INET6
7000         case AF_INET6:
7001                 {
7002                         struct sockaddr_in6 *sin6;
7003
7004                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
7005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7006                                 return (EINVAL);
7007                         }
7008                         sin6 = (struct sockaddr_in6 *)addr;
7009                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
7010                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7011                                 return (error);
7012                         }
7013                         break;
7014                 }
7015 #endif
7016 #ifdef INET
7017         case AF_INET:
7018                 {
7019                         struct sockaddr_in *sin;
7020
7021                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
7022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7023                                 return (EINVAL);
7024                         }
7025                         sin = (struct sockaddr_in *)addr;
7026                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
7027                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7028                                 return (error);
7029                         }
7030                         break;
7031                 }
7032 #endif
7033         default:
7034                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
7035                 return (EAFNOSUPPORT);
7036         }
7037         SCTP_INP_INCR_REF(inp);
7038         SCTP_ASOC_CREATE_LOCK(inp);
7039         create_lock_on = 1;
7040
7041
7042         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7043             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7044                 /* Should I really unlock ? */
7045                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7046                 error = EFAULT;
7047                 goto out_now;
7048         }
7049 #ifdef INET6
7050         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7051             (addr->sa_family == AF_INET6)) {
7052                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7053                 error = EINVAL;
7054                 goto out_now;
7055         }
7056 #endif
7057         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7058             SCTP_PCB_FLAGS_UNBOUND) {
7059                 /* Bind a ephemeral port */
7060                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7061                 if (error) {
7062                         goto out_now;
7063                 }
7064         }
7065         /* Now do we connect? */
7066         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7067             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7068                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7069                 error = EINVAL;
7070                 goto out_now;
7071         }
7072         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7073             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7074                 /* We are already connected AND the TCP model */
7075                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7076                 error = EADDRINUSE;
7077                 goto out_now;
7078         }
7079         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7080                 SCTP_INP_RLOCK(inp);
7081                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7082                 SCTP_INP_RUNLOCK(inp);
7083         } else {
7084                 /*
7085                  * We increment here since sctp_findassociation_ep_addr()
7086                  * will do a decrement if it finds the stcb as long as the
7087                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7088                  */
7089                 SCTP_INP_INCR_REF(inp);
7090                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7091                 if (stcb == NULL) {
7092                         SCTP_INP_DECR_REF(inp);
7093                 } else {
7094                         SCTP_TCB_UNLOCK(stcb);
7095                 }
7096         }
7097         if (stcb != NULL) {
7098                 /* Already have or am bring up an association */
7099                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7100                 error = EALREADY;
7101                 goto out_now;
7102         }
7103
7104         vrf_id = inp->def_vrf_id;
7105         /* We are GOOD to go */
7106         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7107             inp->sctp_ep.pre_open_stream_count,
7108             inp->sctp_ep.port, p,
7109             SCTP_INITIALIZE_AUTH_PARAMS);
7110         if (stcb == NULL) {
7111                 /* Gak! no memory */
7112                 goto out_now;
7113         }
7114         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7115                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7116                 /* Set the connected flag so we can queue data */
7117                 soisconnecting(so);
7118         }
7119         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7120         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7121
7122         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7123         SCTP_TCB_UNLOCK(stcb);
7124 out_now:
7125         if (create_lock_on) {
7126                 SCTP_ASOC_CREATE_UNLOCK(inp);
7127         }
7128
7129         SCTP_INP_DECR_REF(inp);
7130         return (error);
7131 }
7132 #endif
7133
7134 int
7135 sctp_listen(struct socket *so, int backlog, struct thread *p)
7136 {
7137         /*
7138          * Note this module depends on the protocol processing being called
7139          * AFTER any socket level flags and backlog are applied to the
7140          * socket. The traditional way that the socket flags are applied is
7141          * AFTER protocol processing. We have made a change to the
7142          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7143          * place if the socket API for SCTP is to work properly.
7144          */
7145
7146         int error = 0;
7147         struct sctp_inpcb *inp;
7148
7149         inp = (struct sctp_inpcb *)so->so_pcb;
7150         if (inp == NULL) {
7151                 /* I made the same as TCP since we are not setup? */
7152                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7153                 return (ECONNRESET);
7154         }
7155         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7156                 /* See if we have a listener */
7157                 struct sctp_inpcb *tinp;
7158                 union sctp_sockstore store;
7159
7160                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7161                         /* not bound all */
7162                         struct sctp_laddr *laddr;
7163
7164                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7165                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7166                                 switch (store.sa.sa_family) {
7167 #ifdef INET
7168                                 case AF_INET:
7169                                         store.sin.sin_port = inp->sctp_lport;
7170                                         break;
7171 #endif
7172 #ifdef INET6
7173                                 case AF_INET6:
7174                                         store.sin6.sin6_port = inp->sctp_lport;
7175                                         break;
7176 #endif
7177                                 default:
7178                                         break;
7179                                 }
7180                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7181                                 if (tinp && (tinp != inp) &&
7182                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7183                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7184                                     (SCTP_IS_LISTENING(tinp))) {
7185                                         /*
7186                                          * we have a listener already and
7187                                          * its not this inp.
7188                                          */
7189                                         SCTP_INP_DECR_REF(tinp);
7190                                         return (EADDRINUSE);
7191                                 } else if (tinp) {
7192                                         SCTP_INP_DECR_REF(tinp);
7193                                 }
7194                         }
7195                 } else {
7196                         /* Setup a local addr bound all */
7197                         memset(&store, 0, sizeof(store));
7198 #ifdef INET6
7199                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7200                                 store.sa.sa_family = AF_INET6;
7201                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7202                         }
7203 #endif
7204 #ifdef INET
7205                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7206                                 store.sa.sa_family = AF_INET;
7207                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7208                         }
7209 #endif
7210                         switch (store.sa.sa_family) {
7211 #ifdef INET
7212                         case AF_INET:
7213                                 store.sin.sin_port = inp->sctp_lport;
7214                                 break;
7215 #endif
7216 #ifdef INET6
7217                         case AF_INET6:
7218                                 store.sin6.sin6_port = inp->sctp_lport;
7219                                 break;
7220 #endif
7221                         default:
7222                                 break;
7223                         }
7224                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7225                         if (tinp && (tinp != inp) &&
7226                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7227                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7228                             (SCTP_IS_LISTENING(tinp))) {
7229                                 /*
7230                                  * we have a listener already and its not
7231                                  * this inp.
7232                                  */
7233                                 SCTP_INP_DECR_REF(tinp);
7234                                 return (EADDRINUSE);
7235                         } else if (tinp) {
7236                                 SCTP_INP_DECR_REF(tinp);
7237                         }
7238                 }
7239         }
7240         SCTP_INP_RLOCK(inp);
7241 #ifdef SCTP_LOCK_LOGGING
7242         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7243                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7244         }
7245 #endif
7246         SOCK_LOCK(so);
7247         error = solisten_proto_check(so);
7248         SOCK_UNLOCK(so);
7249         if (error) {
7250                 SCTP_INP_RUNLOCK(inp);
7251                 return (error);
7252         }
7253         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7254             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7255                 /*
7256                  * The unlucky case - We are in the tcp pool with this guy.
7257                  * - Someone else is in the main inp slot. - We must move
7258                  * this guy (the listener) to the main slot - We must then
7259                  * move the guy that was listener to the TCP Pool.
7260                  */
7261                 if (sctp_swap_inpcb_for_listen(inp)) {
7262                         SCTP_INP_RUNLOCK(inp);
7263                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7264                         return (EADDRINUSE);
7265                 }
7266         }
7267
7268         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7269             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7270                 /* We are already connected AND the TCP model */
7271                 SCTP_INP_RUNLOCK(inp);
7272                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7273                 return (EADDRINUSE);
7274         }
7275         SCTP_INP_RUNLOCK(inp);
7276         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7277                 /* We must do a bind. */
7278                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7279                         /* bind error, probably perm */
7280                         return (error);
7281                 }
7282         }
7283         SCTP_INP_WLOCK(inp);
7284         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7285                 SOCK_LOCK(so);
7286                 solisten_proto(so, backlog);
7287                 SOCK_UNLOCK(so);
7288         }
7289         if (backlog > 0) {
7290                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7291         } else {
7292                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7293         }
7294         SCTP_INP_WUNLOCK(inp);
7295         return (error);
7296 }
7297
7298 static int sctp_defered_wakeup_cnt = 0;
7299
7300 int
7301 sctp_accept(struct socket *so, struct sockaddr **addr)
7302 {
7303         struct sctp_tcb *stcb;
7304         struct sctp_inpcb *inp;
7305         union sctp_sockstore store;
7306 #ifdef INET6
7307         int error;
7308 #endif
7309         inp = (struct sctp_inpcb *)so->so_pcb;
7310
7311         if (inp == NULL) {
7312                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7313                 return (ECONNRESET);
7314         }
7315         SCTP_INP_WLOCK(inp);
7316         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7317                 SCTP_INP_WUNLOCK(inp);
7318                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7319                 return (EOPNOTSUPP);
7320         }
7321         if (so->so_state & SS_ISDISCONNECTED) {
7322                 SCTP_INP_WUNLOCK(inp);
7323                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7324                 return (ECONNABORTED);
7325         }
7326         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7327         if (stcb == NULL) {
7328                 SCTP_INP_WUNLOCK(inp);
7329                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7330                 return (ECONNRESET);
7331         }
7332         SCTP_TCB_LOCK(stcb);
7333         store = stcb->asoc.primary_destination->ro._l_addr;
7334         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7335         /* Wake any delayed sleep action */
7336         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7337                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7338                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7339                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7340                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7341                         if (sowriteable(inp->sctp_socket)) {
7342                                 sowwakeup_locked(inp->sctp_socket);
7343                         } else {
7344                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7345                         }
7346                 }
7347                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7348                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7349                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7350                         if (soreadable(inp->sctp_socket)) {
7351                                 sctp_defered_wakeup_cnt++;
7352                                 sorwakeup_locked(inp->sctp_socket);
7353                         } else {
7354                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7355                         }
7356                 }
7357         }
7358         SCTP_INP_WUNLOCK(inp);
7359         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7360                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7361                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7362         } else {
7363                 SCTP_TCB_UNLOCK(stcb);
7364         }
7365         switch (store.sa.sa_family) {
7366 #ifdef INET
7367         case AF_INET:
7368                 {
7369                         struct sockaddr_in *sin;
7370
7371                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7372                         if (sin == NULL)
7373                                 return (ENOMEM);
7374                         sin->sin_family = AF_INET;
7375                         sin->sin_len = sizeof(*sin);
7376                         sin->sin_port = store.sin.sin_port;
7377                         sin->sin_addr = store.sin.sin_addr;
7378                         *addr = (struct sockaddr *)sin;
7379                         break;
7380                 }
7381 #endif
7382 #ifdef INET6
7383         case AF_INET6:
7384                 {
7385                         struct sockaddr_in6 *sin6;
7386
7387                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7388                         if (sin6 == NULL)
7389                                 return (ENOMEM);
7390                         sin6->sin6_family = AF_INET6;
7391                         sin6->sin6_len = sizeof(*sin6);
7392                         sin6->sin6_port = store.sin6.sin6_port;
7393                         sin6->sin6_addr = store.sin6.sin6_addr;
7394                         if ((error = sa6_recoverscope(sin6)) != 0) {
7395                                 SCTP_FREE_SONAME(sin6);
7396                                 return (error);
7397                         }
7398                         *addr = (struct sockaddr *)sin6;
7399                         break;
7400                 }
7401 #endif
7402         default:
7403                 /* TSNH */
7404                 break;
7405         }
7406         return (0);
7407 }
7408
7409 #ifdef INET
7410 int
7411 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7412 {
7413         struct sockaddr_in *sin;
7414         uint32_t vrf_id;
7415         struct sctp_inpcb *inp;
7416         struct sctp_ifa *sctp_ifa;
7417
7418         /*
7419          * Do the malloc first in case it blocks.
7420          */
7421         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7422         if (sin == NULL)
7423                 return (ENOMEM);
7424         sin->sin_family = AF_INET;
7425         sin->sin_len = sizeof(*sin);
7426         inp = (struct sctp_inpcb *)so->so_pcb;
7427         if (!inp) {
7428                 SCTP_FREE_SONAME(sin);
7429                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7430                 return (ECONNRESET);
7431         }
7432         SCTP_INP_RLOCK(inp);
7433         sin->sin_port = inp->sctp_lport;
7434         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7435                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7436                         struct sctp_tcb *stcb;
7437                         struct sockaddr_in *sin_a;
7438                         struct sctp_nets *net;
7439                         int fnd;
7440
7441                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7442                         if (stcb == NULL) {
7443                                 goto notConn;
7444                         }
7445                         fnd = 0;
7446                         sin_a = NULL;
7447                         SCTP_TCB_LOCK(stcb);
7448                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7449                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7450                                 if (sin_a == NULL)
7451                                         /* this will make coverity happy */
7452                                         continue;
7453
7454                                 if (sin_a->sin_family == AF_INET) {
7455                                         fnd = 1;
7456                                         break;
7457                                 }
7458                         }
7459                         if ((!fnd) || (sin_a == NULL)) {
7460                                 /* punt */
7461                                 SCTP_TCB_UNLOCK(stcb);
7462                                 goto notConn;
7463                         }
7464
7465                         vrf_id = inp->def_vrf_id;
7466                         sctp_ifa = sctp_source_address_selection(inp,
7467                             stcb,
7468                             (sctp_route_t *)&net->ro,
7469                             net, 0, vrf_id);
7470                         if (sctp_ifa) {
7471                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7472                                 sctp_free_ifa(sctp_ifa);
7473                         }
7474                         SCTP_TCB_UNLOCK(stcb);
7475                 } else {
7476                         /* For the bound all case you get back 0 */
7477         notConn:
7478                         sin->sin_addr.s_addr = 0;
7479                 }
7480
7481         } else {
7482                 /* Take the first IPv4 address in the list */
7483                 struct sctp_laddr *laddr;
7484                 int fnd = 0;
7485
7486                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7487                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7488                                 struct sockaddr_in *sin_a;
7489
7490                                 sin_a = &laddr->ifa->address.sin;
7491                                 sin->sin_addr = sin_a->sin_addr;
7492                                 fnd = 1;
7493                                 break;
7494                         }
7495                 }
7496                 if (!fnd) {
7497                         SCTP_FREE_SONAME(sin);
7498                         SCTP_INP_RUNLOCK(inp);
7499                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7500                         return (ENOENT);
7501                 }
7502         }
7503         SCTP_INP_RUNLOCK(inp);
7504         (*addr) = (struct sockaddr *)sin;
7505         return (0);
7506 }
7507
7508 int
7509 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7510 {
7511         struct sockaddr_in *sin;
7512         int fnd;
7513         struct sockaddr_in *sin_a;
7514         struct sctp_inpcb *inp;
7515         struct sctp_tcb *stcb;
7516         struct sctp_nets *net;
7517
7518         /* Do the malloc first in case it blocks. */
7519         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7520         if (sin == NULL)
7521                 return (ENOMEM);
7522         sin->sin_family = AF_INET;
7523         sin->sin_len = sizeof(*sin);
7524
7525         inp = (struct sctp_inpcb *)so->so_pcb;
7526         if ((inp == NULL) ||
7527             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7528                 /* UDP type and listeners will drop out here */
7529                 SCTP_FREE_SONAME(sin);
7530                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7531                 return (ENOTCONN);
7532         }
7533         SCTP_INP_RLOCK(inp);
7534         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7535         if (stcb) {
7536                 SCTP_TCB_LOCK(stcb);
7537         }
7538         SCTP_INP_RUNLOCK(inp);
7539         if (stcb == NULL) {
7540                 SCTP_FREE_SONAME(sin);
7541                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7542                 return (ECONNRESET);
7543         }
7544         fnd = 0;
7545         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7546                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7547                 if (sin_a->sin_family == AF_INET) {
7548                         fnd = 1;
7549                         sin->sin_port = stcb->rport;
7550                         sin->sin_addr = sin_a->sin_addr;
7551                         break;
7552                 }
7553         }
7554         SCTP_TCB_UNLOCK(stcb);
7555         if (!fnd) {
7556                 /* No IPv4 address */
7557                 SCTP_FREE_SONAME(sin);
7558                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7559                 return (ENOENT);
7560         }
7561         (*addr) = (struct sockaddr *)sin;
7562         return (0);
7563 }
7564
7565 struct pr_usrreqs sctp_usrreqs = {
7566         .pru_abort = sctp_abort,
7567         .pru_accept = sctp_accept,
7568         .pru_attach = sctp_attach,
7569         .pru_bind = sctp_bind,
7570         .pru_connect = sctp_connect,
7571         .pru_control = in_control,
7572         .pru_close = sctp_close,
7573         .pru_detach = sctp_close,
7574         .pru_sopoll = sopoll_generic,
7575         .pru_flush = sctp_flush,
7576         .pru_disconnect = sctp_disconnect,
7577         .pru_listen = sctp_listen,
7578         .pru_peeraddr = sctp_peeraddr,
7579         .pru_send = sctp_sendm,
7580         .pru_shutdown = sctp_shutdown,
7581         .pru_sockaddr = sctp_ingetaddr,
7582         .pru_sosend = sctp_sosend,
7583         .pru_soreceive = sctp_soreceive
7584 };
7585 #endif