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,
 425     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 426     0, 0, sctp_getcred, "S,ucred",
 427     "Get the ucred of a SCTP connection");
 428
 429
 430 #ifdef INET
 431 static void
 432 sctp_abort(struct socket *so)
 433 {
 434         struct epoch_tracker et;
 435         struct sctp_inpcb *inp;
 436         uint32_t flags;
 437
 438         inp = (struct sctp_inpcb *)so->so_pcb;
 439         if (inp == NULL) {
 440                 return;
 441         }
 442
 443         NET_EPOCH_ENTER(et);
 444 sctp_must_try_again:
 445         flags = inp->sctp_flags;
 446 #ifdef SCTP_LOG_CLOSING
 447         sctp_log_closing(inp, NULL, 17);
 448 #endif
 449         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 450             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 451 #ifdef SCTP_LOG_CLOSING
 452                 sctp_log_closing(inp, NULL, 16);
 453 #endif
 454                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 455                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 456                 SOCK_LOCK(so);
 457                 SCTP_SB_CLEAR(so->so_snd);
 458                 /*
 459                  * same for the rcv ones, they are only here for the
 460                  * accounting/select.
 461                  */
 462                 SCTP_SB_CLEAR(so->so_rcv);
 463
 464                 /* Now null out the reference, we are completely detached. */
 465                 so->so_pcb = NULL;
 466                 SOCK_UNLOCK(so);
 467         } else {
 468                 flags = inp->sctp_flags;
 469                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 470                         goto sctp_must_try_again;
 471                 }
 472         }
 473         NET_EPOCH_EXIT(et);
 474         return;
 475 }
 476
 477 static int
 478 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 479 {
 480         struct sctp_inpcb *inp;
 481         struct inpcb *ip_inp;
 482         int error;
 483         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 484
 485         inp = (struct sctp_inpcb *)so->so_pcb;
 486         if (inp != NULL) {
 487                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 488                 return (EINVAL);
 489         }
 490         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 491                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 492                 if (error) {
 493                         return (error);
 494                 }
 495         }
 496         error = sctp_inpcb_alloc(so, vrf_id);
 497         if (error) {
 498                 return (error);
 499         }
 500         inp = (struct sctp_inpcb *)so->so_pcb;
 501         SCTP_INP_WLOCK(inp);
 502         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 503         ip_inp = &inp->ip_inp.inp;
 504         ip_inp->inp_vflag |= INP_IPV4;
 505         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 506         SCTP_INP_WUNLOCK(inp);
 507         return (0);
 508 }
 509
 510 static int
 511 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 512 {
 513         struct sctp_inpcb *inp;
 514
 515         inp = (struct sctp_inpcb *)so->so_pcb;
 516         if (inp == NULL) {
 517                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 518                 return (EINVAL);
 519         }
 520         if (addr != NULL) {
 521                 if ((addr->sa_family != AF_INET) ||
 522                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 523                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 524                         return (EINVAL);
 525                 }
 526         }
 527         return (sctp_inpcb_bind(so, addr, NULL, p));
 528 }
 529
 530 #endif
 531 void
 532 sctp_close(struct socket *so)
 533 {
 534         struct epoch_tracker et;
 535         struct sctp_inpcb *inp;
 536         uint32_t flags;
 537
 538         inp = (struct sctp_inpcb *)so->so_pcb;
 539         if (inp == NULL)
 540                 return;
 541
 542         /*
 543          * Inform all the lower layer assoc that we are done.
 544          */
 545         NET_EPOCH_ENTER(et);
 546 sctp_must_try_again:
 547         flags = inp->sctp_flags;
 548 #ifdef SCTP_LOG_CLOSING
 549         sctp_log_closing(inp, NULL, 17);
 550 #endif
 551         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 552             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 553                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 554                     (so->so_rcv.sb_cc > 0)) {
 555 #ifdef SCTP_LOG_CLOSING
 556                         sctp_log_closing(inp, NULL, 13);
 557 #endif
 558                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 559                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 560                 } else {
 561 #ifdef SCTP_LOG_CLOSING
 562                         sctp_log_closing(inp, NULL, 14);
 563 #endif
 564                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 565                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 566                 }
 567                 /*
 568                  * The socket is now detached, no matter what the state of
 569                  * the SCTP association.
 570                  */
 571                 SOCK_LOCK(so);
 572                 SCTP_SB_CLEAR(so->so_snd);
 573                 /*
 574                  * same for the rcv ones, they are only here for the
 575                  * accounting/select.
 576                  */
 577                 SCTP_SB_CLEAR(so->so_rcv);
 578
 579                 /* Now null out the reference, we are completely detached. */
 580                 so->so_pcb = NULL;
 581                 SOCK_UNLOCK(so);
 582         } else {
 583                 flags = inp->sctp_flags;
 584                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 585                         goto sctp_must_try_again;
 586                 }
 587         }
 588         NET_EPOCH_EXIT(et);
 589         return;
 590 }
 591
 592
 593 int
 594 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 595     struct mbuf *control, struct thread *p);
 596
 597
 598 int
 599 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 600     struct mbuf *control, struct thread *p)
 601 {
 602         struct sctp_inpcb *inp;
 603         int error;
 604
 605         inp = (struct sctp_inpcb *)so->so_pcb;
 606         if (inp == NULL) {
 607                 if (control) {
 608                         sctp_m_freem(control);
 609                         control = NULL;
 610                 }
 611                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 612                 sctp_m_freem(m);
 613                 return (EINVAL);
 614         }
 615         /* Got to have an to address if we are NOT a connected socket */
 616         if ((addr == NULL) &&
 617             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 618             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 619                 goto connected_type;
 620         } else if (addr == NULL) {
 621                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 622                 error = EDESTADDRREQ;
 623                 sctp_m_freem(m);
 624                 if (control) {
 625                         sctp_m_freem(control);
 626                         control = NULL;
 627                 }
 628                 return (error);
 629         }
 630 #ifdef INET6
 631         if (addr->sa_family != AF_INET) {
 632                 /* must be a v4 address! */
 633                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 634                 sctp_m_freem(m);
 635                 if (control) {
 636                         sctp_m_freem(control);
 637                         control = NULL;
 638                 }
 639                 error = EDESTADDRREQ;
 640                 return (error);
 641         }
 642 #endif                          /* INET6 */
 643 connected_type:
 644         /* now what about control */
 645         if (control) {
 646                 if (inp->control) {
 647                         sctp_m_freem(inp->control);
 648                         inp->control = NULL;
 649                 }
 650                 inp->control = control;
 651         }
 652         /* Place the data */
 653         if (inp->pkt) {
 654                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 655                 inp->pkt_last = m;
 656         } else {
 657                 inp->pkt_last = inp->pkt = m;
 658         }
 659         if (
 660         /* FreeBSD uses a flag passed */
 661             ((flags & PRUS_MORETOCOME) == 0)
 662             ) {
 663                 /*
 664                  * note with the current version this code will only be used
 665                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 666                  * re-defining sosend to use the sctp_sosend. One can
 667                  * optionally switch back to this code (by changing back the
 668                  * definitions) but this is not advisable. This code is used
 669                  * by FreeBSD when sending a file with sendfile() though.
 670                  */
 671                 struct epoch_tracker et;
 672                 int ret;
 673
 674                 NET_EPOCH_ENTER(et);
 675                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 676                 NET_EPOCH_EXIT(et);
 677                 inp->pkt = NULL;
 678                 inp->control = NULL;
 679                 return (ret);
 680         } else {
 681                 return (0);
 682         }
 683 }
 684
 685 int
 686 sctp_disconnect(struct socket *so)
 687 {
 688         struct sctp_inpcb *inp;
 689
 690         inp = (struct sctp_inpcb *)so->so_pcb;
 691         if (inp == NULL) {
 692                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 693                 return (ENOTCONN);
 694         }
 695         SCTP_INP_RLOCK(inp);
 696         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 697             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 698                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 699                         /* No connection */
 700                         SCTP_INP_RUNLOCK(inp);
 701                         return (0);
 702                 } else {
 703                         struct epoch_tracker et;
 704                         struct sctp_association *asoc;
 705                         struct sctp_tcb *stcb;
 706
 707                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 708                         if (stcb == NULL) {
 709                                 SCTP_INP_RUNLOCK(inp);
 710                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 711                                 return (EINVAL);
 712                         }
 713                         SCTP_TCB_LOCK(stcb);
 714                         asoc = &stcb->asoc;
 715                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 716                                 /* We are about to be freed, out of here */
 717                                 SCTP_TCB_UNLOCK(stcb);
 718                                 SCTP_INP_RUNLOCK(inp);
 719                                 return (0);
 720                         }
 721                         NET_EPOCH_ENTER(et);
 722                         if (((so->so_options & SO_LINGER) &&
 723                             (so->so_linger == 0)) ||
 724                             (so->so_rcv.sb_cc > 0)) {
 725                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 726                                         /* Left with Data unread */
 727                                         struct mbuf *op_err;
 728
 729                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 730                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 731                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 732                                 }
 733                                 SCTP_INP_RUNLOCK(inp);
 734                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 735                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 736                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 737                                 }
 738                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 739                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 740                                 /* No unlock tcb assoc is gone */
 741                                 NET_EPOCH_EXIT(et);
 742                                 return (0);
 743                         }
 744                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 745                             TAILQ_EMPTY(&asoc->sent_queue) &&
 746                             (asoc->stream_queue_cnt == 0)) {
 747                                 /* there is nothing queued to send, so done */
 748                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 749                                         goto abort_anyway;
 750                                 }
 751                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 752                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 753                                         /* only send SHUTDOWN 1st time thru */
 754                                         struct sctp_nets *netp;
 755
 756                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 757                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 758                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 759                                         }
 760                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 761                                         sctp_stop_timers_for_shutdown(stcb);
 762                                         if (stcb->asoc.alternate) {
 763                                                 netp = stcb->asoc.alternate;
 764                                         } else {
 765                                                 netp = stcb->asoc.primary_destination;
 766                                         }
 767                                         sctp_send_shutdown(stcb, netp);
 768                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 769                                             stcb->sctp_ep, stcb, netp);
 770                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 771                                             stcb->sctp_ep, stcb, NULL);
 772                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 773                                 }
 774                         } else {
 775                                 /*
 776                                  * we still got (or just got) data to send,
 777                                  * so set SHUTDOWN_PENDING
 778                                  */
 779                                 /*
 780                                  * XXX sockets draft says that SCTP_EOF
 781                                  * should be sent with no data. currently,
 782                                  * we will allow user data to be sent first
 783                                  * and move to SHUTDOWN-PENDING
 784                                  */
 785                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 786                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 787                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 788                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 789                                 }
 790                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 791                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 792                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 793                                         struct mbuf *op_err;
 794
 795                         abort_anyway:
 796                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 797                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 798                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 799                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 800                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 801                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 802                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 803                                         }
 804                                         SCTP_INP_RUNLOCK(inp);
 805                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 806                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 807                                         NET_EPOCH_EXIT(et);
 808                                         return (0);
 809                                 } else {
 810                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 811                                 }
 812                         }
 813                         soisdisconnecting(so);
 814                         NET_EPOCH_EXIT(et);
 815                         SCTP_TCB_UNLOCK(stcb);
 816                         SCTP_INP_RUNLOCK(inp);
 817                         return (0);
 818                 }
 819                 /* not reached */
 820         } else {
 821                 /* UDP model does not support this */
 822                 SCTP_INP_RUNLOCK(inp);
 823                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 824                 return (EOPNOTSUPP);
 825         }
 826 }
 827
 828 int
 829 sctp_flush(struct socket *so, int how)
 830 {
 831         /*
 832          * We will just clear out the values and let subsequent close clear
 833          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 834          * they will not be able to read the data, the socket will block
 835          * that from happening.
 836          */
 837         struct sctp_inpcb *inp;
 838
 839         inp = (struct sctp_inpcb *)so->so_pcb;
 840         if (inp == NULL) {
 841                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 842                 return (EINVAL);
 843         }
 844         SCTP_INP_RLOCK(inp);
 845         /* For the 1 to many model this does nothing */
 846         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 847                 SCTP_INP_RUNLOCK(inp);
 848                 return (0);
 849         }
 850         SCTP_INP_RUNLOCK(inp);
 851         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 852                 /*
 853                  * First make sure the sb will be happy, we don't use these
 854                  * except maybe the count
 855                  */
 856                 SCTP_INP_WLOCK(inp);
 857                 SCTP_INP_READ_LOCK(inp);
 858                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 859                 SCTP_INP_READ_UNLOCK(inp);
 860                 SCTP_INP_WUNLOCK(inp);
 861                 so->so_rcv.sb_cc = 0;
 862                 so->so_rcv.sb_mbcnt = 0;
 863                 so->so_rcv.sb_mb = NULL;
 864         }
 865         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 866                 /*
 867                  * First make sure the sb will be happy, we don't use these
 868                  * except maybe the count
 869                  */
 870                 so->so_snd.sb_cc = 0;
 871                 so->so_snd.sb_mbcnt = 0;
 872                 so->so_snd.sb_mb = NULL;
 873
 874         }
 875         return (0);
 876 }
 877
 878 int
 879 sctp_shutdown(struct socket *so)
 880 {
 881         struct sctp_inpcb *inp;
 882
 883         inp = (struct sctp_inpcb *)so->so_pcb;
 884         if (inp == NULL) {
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 886                 return (EINVAL);
 887         }
 888         SCTP_INP_RLOCK(inp);
 889         /* For UDP model this is a invalid call */
 890         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 891             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 892                 /* Restore the flags that the soshutdown took away. */
 893                 SOCKBUF_LOCK(&so->so_rcv);
 894                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 895                 SOCKBUF_UNLOCK(&so->so_rcv);
 896                 /* This proc will wakeup for read and do nothing (I hope) */
 897                 SCTP_INP_RUNLOCK(inp);
 898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 899                 return (EOPNOTSUPP);
 900         } else {
 901                 /*
 902                  * Ok, if we reach here its the TCP model and it is either a
 903                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 904                  * against it.
 905                  */
 906                 struct epoch_tracker et;
 907                 struct sctp_tcb *stcb;
 908                 struct sctp_association *asoc;
 909                 struct sctp_nets *netp;
 910
 911                 if ((so->so_state &
 912                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 913                         SCTP_INP_RUNLOCK(inp);
 914                         return (ENOTCONN);
 915                 }
 916                 socantsendmore(so);
 917
 918                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 919                 if (stcb == NULL) {
 920                         /*
 921                          * Ok, we hit the case that the shutdown call was
 922                          * made after an abort or something. Nothing to do
 923                          * now.
 924                          */
 925                         SCTP_INP_RUNLOCK(inp);
 926                         return (0);
 927                 }
 928                 SCTP_TCB_LOCK(stcb);
 929                 asoc = &stcb->asoc;
 930                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 931                         SCTP_TCB_UNLOCK(stcb);
 932                         SCTP_INP_RUNLOCK(inp);
 933                         return (0);
 934                 }
 935                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 936                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 937                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 938                         /*
 939                          * If we are not in or before ESTABLISHED, there is
 940                          * no protocol action required.
 941                          */
 942                         SCTP_TCB_UNLOCK(stcb);
 943                         SCTP_INP_RUNLOCK(inp);
 944                         return (0);
 945                 }
 946                 NET_EPOCH_ENTER(et);
 947                 if (stcb->asoc.alternate) {
 948                         netp = stcb->asoc.alternate;
 949                 } else {
 950                         netp = stcb->asoc.primary_destination;
 951                 }
 952                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 953                     TAILQ_EMPTY(&asoc->send_queue) &&
 954                     TAILQ_EMPTY(&asoc->sent_queue) &&
 955                     (asoc->stream_queue_cnt == 0)) {
 956                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 957                                 goto abort_anyway;
 958                         }
 959                         /* there is nothing queued to send, so I'm done... */
 960                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 961                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 962                         sctp_stop_timers_for_shutdown(stcb);
 963                         sctp_send_shutdown(stcb, netp);
 964                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 965                             stcb->sctp_ep, stcb, netp);
 966                 } else {
 967                         /*
 968                          * We still got (or just got) data to send, so set
 969                          * SHUTDOWN_PENDING.
 970                          */
 971                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 972                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 973                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 974                         }
 975                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 976                             TAILQ_EMPTY(&asoc->sent_queue) &&
 977                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 978                                 struct mbuf *op_err;
 979
 980                 abort_anyway:
 981                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 982                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 983                                 SCTP_INP_RUNLOCK(inp);
 984                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 985                                     op_err, SCTP_SO_LOCKED);
 986                                 NET_EPOCH_EXIT(et);
 987                                 return (0);
 988                         }
 989                 }
 990                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 991                 /*
 992                  * XXX: Why do this in the case where we have still data
 993                  * queued?
 994                  */
 995                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 996                 SCTP_TCB_UNLOCK(stcb);
 997                 SCTP_INP_RUNLOCK(inp);
 998                 NET_EPOCH_EXIT(et);
 999                 return (0);
1000         }
1001 }
1002
1003 /*
1004  * copies a "user" presentable address and removes embedded scope, etc.
1005  * returns 0 on success, 1 on error
1006  */
1007 static uint32_t
1008 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1009 {
1010 #ifdef INET6
1011         struct sockaddr_in6 lsa6;
1012
1013         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1014             &lsa6);
1015 #endif
1016         memcpy(ss, sa, sa->sa_len);
1017         return (0);
1018 }
1019
1020
1021
1022 /*
1023  * NOTE: assumes addr lock is held
1024  */
1025 static size_t
1026 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1027     struct sctp_tcb *stcb,
1028     size_t limit,
1029     struct sockaddr_storage *sas,
1030     uint32_t vrf_id)
1031 {
1032         struct sctp_ifn *sctp_ifn;
1033         struct sctp_ifa *sctp_ifa;
1034         size_t actual;
1035         int loopback_scope;
1036 #if defined(INET)
1037         int ipv4_local_scope, ipv4_addr_legal;
1038 #endif
1039 #if defined(INET6)
1040         int local_scope, site_scope, ipv6_addr_legal;
1041 #endif
1042         struct sctp_vrf *vrf;
1043
1044         actual = 0;
1045         if (limit <= 0)
1046                 return (actual);
1047
1048         if (stcb) {
1049                 /* Turn on all the appropriate scope */
1050                 loopback_scope = stcb->asoc.scope.loopback_scope;
1051 #if defined(INET)
1052                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1053                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1054 #endif
1055 #if defined(INET6)
1056                 local_scope = stcb->asoc.scope.local_scope;
1057                 site_scope = stcb->asoc.scope.site_scope;
1058                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1059 #endif
1060         } else {
1061                 /* Use generic values for endpoints. */
1062                 loopback_scope = 1;
1063 #if defined(INET)
1064                 ipv4_local_scope = 1;
1065 #endif
1066 #if defined(INET6)
1067                 local_scope = 1;
1068                 site_scope = 1;
1069 #endif
1070                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1071 #if defined(INET6)
1072                         ipv6_addr_legal = 1;
1073 #endif
1074 #if defined(INET)
1075                         if (SCTP_IPV6_V6ONLY(inp)) {
1076                                 ipv4_addr_legal = 0;
1077                         } else {
1078                                 ipv4_addr_legal = 1;
1079                         }
1080 #endif
1081                 } else {
1082 #if defined(INET6)
1083                         ipv6_addr_legal = 0;
1084 #endif
1085 #if defined(INET)
1086                         ipv4_addr_legal = 1;
1087 #endif
1088                 }
1089         }
1090         vrf = sctp_find_vrf(vrf_id);
1091         if (vrf == NULL) {
1092                 return (0);
1093         }
1094         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1095                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1096                         if ((loopback_scope == 0) &&
1097                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1098                                 /* Skip loopback if loopback_scope not set */
1099                                 continue;
1100                         }
1101                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1102                                 if (stcb) {
1103                                         /*
1104                                          * For the BOUND-ALL case, the list
1105                                          * associated with a TCB is Always
1106                                          * considered a reverse list.. i.e.
1107                                          * it lists addresses that are NOT
1108                                          * part of the association. If this
1109                                          * is one of those we must skip it.
1110                                          */
1111                                         if (sctp_is_addr_restricted(stcb,
1112                                             sctp_ifa)) {
1113                                                 continue;
1114                                         }
1115                                 }
1116                                 switch (sctp_ifa->address.sa.sa_family) {
1117 #ifdef INET
1118                                 case AF_INET:
1119                                         if (ipv4_addr_legal) {
1120                                                 struct sockaddr_in *sin;
1121
1122                                                 sin = &sctp_ifa->address.sin;
1123                                                 if (sin->sin_addr.s_addr == 0) {
1124                                                         /*
1125                                                          * we skip
1126                                                          * unspecifed
1127                                                          * addresses
1128                                                          */
1129                                                         continue;
1130                                                 }
1131                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1132                                                     &sin->sin_addr) != 0) {
1133                                                         continue;
1134                                                 }
1135                                                 if ((ipv4_local_scope == 0) &&
1136                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1137                                                         continue;
1138                                                 }
1139 #ifdef INET6
1140                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1141                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1142                                                                 return (actual);
1143                                                         }
1144                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1145                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1146                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1147                                                         actual += sizeof(struct sockaddr_in6);
1148                                                 } else {
1149 #endif
1150                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1151                                                                 return (actual);
1152                                                         }
1153                                                         memcpy(sas, sin, sizeof(struct sockaddr_in));
1154                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1155                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in));
1156                                                         actual += sizeof(struct sockaddr_in);
1157 #ifdef INET6
1158                                                 }
1159 #endif
1160                                         } else {
1161                                                 continue;
1162                                         }
1163                                         break;
1164 #endif
1165 #ifdef INET6
1166                                 case AF_INET6:
1167                                         if (ipv6_addr_legal) {
1168                                                 struct sockaddr_in6 *sin6;
1169
1170                                                 sin6 = &sctp_ifa->address.sin6;
1171                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1172                                                         /*
1173                                                          * we skip
1174                                                          * unspecifed
1175                                                          * addresses
1176                                                          */
1177                                                         continue;
1178                                                 }
1179                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1180                                                     &sin6->sin6_addr) != 0) {
1181                                                         continue;
1182                                                 }
1183                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1184                                                         if (local_scope == 0)
1185                                                                 continue;
1186                                                         if (sin6->sin6_scope_id == 0) {
1187                                                                 if (sa6_recoverscope(sin6) != 0)
1188                                                                         /*
1189                                                                          *
1190                                                                          * bad
1191                                                                          * link
1192                                                                          *
1193                                                                          * local
1194                                                                          *
1195                                                                          * address
1196                                                                          */
1197                                                                         continue;
1198                                                         }
1199                                                 }
1200                                                 if ((site_scope == 0) &&
1201                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1202                                                         continue;
1203                                                 }
1204                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1205                                                         return (actual);
1206                                                 }
1207                                                 memcpy(sas, sin6, sizeof(struct sockaddr_in6));
1208                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1209                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1210                                                 actual += sizeof(struct sockaddr_in6);
1211                                         } else {
1212                                                 continue;
1213                                         }
1214                                         break;
1215 #endif
1216                                 default:
1217                                         /* TSNH */
1218                                         break;
1219                                 }
1220                         }
1221                 }
1222         } else {
1223                 struct sctp_laddr *laddr;
1224                 size_t sa_len;
1225
1226                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1227                         if (stcb) {
1228                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1229                                         continue;
1230                                 }
1231                         }
1232                         sa_len = laddr->ifa->address.sa.sa_len;
1233                         if (actual + sa_len > limit) {
1234                                 return (actual);
1235                         }
1236                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1237                                 continue;
1238                         switch (laddr->ifa->address.sa.sa_family) {
1239 #ifdef INET
1240                         case AF_INET:
1241                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1242                                 break;
1243 #endif
1244 #ifdef INET6
1245                         case AF_INET6:
1246                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1247                                 break;
1248 #endif
1249                         default:
1250                                 /* TSNH */
1251                                 break;
1252                         }
1253                         sas = (struct sockaddr_storage *)((caddr_t)sas + sa_len);
1254                         actual += sa_len;
1255                 }
1256         }
1257         return (actual);
1258 }
1259
1260 static size_t
1261 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1262     struct sctp_tcb *stcb,
1263     size_t limit,
1264     struct sockaddr_storage *sas)
1265 {
1266         size_t size = 0;
1267
1268         SCTP_IPI_ADDR_RLOCK();
1269         /* fill up addresses for the endpoint's default vrf */
1270         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1271             inp->def_vrf_id);
1272         SCTP_IPI_ADDR_RUNLOCK();
1273         return (size);
1274 }
1275
1276 /*
1277  * NOTE: assumes addr lock is held
1278  */
1279 static int
1280 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1281 {
1282         int cnt = 0;
1283         struct sctp_vrf *vrf = NULL;
1284
1285         /*
1286          * In both sub-set bound an bound_all cases we return the MAXIMUM
1287          * number of addresses that you COULD get. In reality the sub-set
1288          * bound may have an exclusion list for a given TCB OR in the
1289          * bound-all case a TCB may NOT include the loopback or other
1290          * addresses as well.
1291          */
1292         vrf = sctp_find_vrf(vrf_id);
1293         if (vrf == NULL) {
1294                 return (0);
1295         }
1296         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1297                 struct sctp_ifn *sctp_ifn;
1298                 struct sctp_ifa *sctp_ifa;
1299
1300                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1301                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1302                                 /* Count them if they are the right type */
1303                                 switch (sctp_ifa->address.sa.sa_family) {
1304 #ifdef INET
1305                                 case AF_INET:
1306 #ifdef INET6
1307                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1308                                                 cnt += sizeof(struct sockaddr_in6);
1309                                         else
1310                                                 cnt += sizeof(struct sockaddr_in);
1311 #else
1312                                         cnt += sizeof(struct sockaddr_in);
1313 #endif
1314                                         break;
1315 #endif
1316 #ifdef INET6
1317                                 case AF_INET6:
1318                                         cnt += sizeof(struct sockaddr_in6);
1319                                         break;
1320 #endif
1321                                 default:
1322                                         break;
1323                                 }
1324                         }
1325                 }
1326         } else {
1327                 struct sctp_laddr *laddr;
1328
1329                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1330                         switch (laddr->ifa->address.sa.sa_family) {
1331 #ifdef INET
1332                         case AF_INET:
1333 #ifdef INET6
1334                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1335                                         cnt += sizeof(struct sockaddr_in6);
1336                                 else
1337                                         cnt += sizeof(struct sockaddr_in);
1338 #else
1339                                 cnt += sizeof(struct sockaddr_in);
1340 #endif
1341                                 break;
1342 #endif
1343 #ifdef INET6
1344                         case AF_INET6:
1345                                 cnt += sizeof(struct sockaddr_in6);
1346                                 break;
1347 #endif
1348                         default:
1349                                 break;
1350                         }
1351                 }
1352         }
1353         return (cnt);
1354 }
1355
1356 static int
1357 sctp_count_max_addresses(struct sctp_inpcb *inp)
1358 {
1359         int cnt = 0;
1360
1361         SCTP_IPI_ADDR_RLOCK();
1362         /* count addresses for the endpoint's default VRF */
1363         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1364         SCTP_IPI_ADDR_RUNLOCK();
1365         return (cnt);
1366 }
1367
1368 static int
1369 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1370     size_t optsize, void *p, int delay)
1371 {
1372         int error;
1373         int creat_lock_on = 0;
1374         struct sctp_tcb *stcb = NULL;
1375         struct sockaddr *sa;
1376         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1377         uint32_t vrf_id;
1378         sctp_assoc_t *a_id;
1379
1380         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1381
1382         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1383             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1384                 /* We are already connected AND the TCP model */
1385                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1386                 return (EADDRINUSE);
1387         }
1388
1389         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1390             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1391                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1392                 return (EINVAL);
1393         }
1394
1395         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1396                 SCTP_INP_RLOCK(inp);
1397                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1398                 SCTP_INP_RUNLOCK(inp);
1399         }
1400         if (stcb) {
1401                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1402                 return (EALREADY);
1403         }
1404         SCTP_INP_INCR_REF(inp);
1405         SCTP_ASOC_CREATE_LOCK(inp);
1406         creat_lock_on = 1;
1407         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1408             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1409                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1410                 error = EFAULT;
1411                 goto out_now;
1412         }
1413         totaddrp = (unsigned int *)optval;
1414         totaddr = *totaddrp;
1415         sa = (struct sockaddr *)(totaddrp + 1);
1416         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1417         if (error != 0) {
1418                 /* Already have or am bring up an association */
1419                 SCTP_ASOC_CREATE_UNLOCK(inp);
1420                 creat_lock_on = 0;
1421                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1422                 goto out_now;
1423         }
1424 #ifdef INET6
1425         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1426             (num_v6 > 0)) {
1427                 error = EINVAL;
1428                 goto out_now;
1429         }
1430         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1431             (num_v4 > 0)) {
1432                 if (SCTP_IPV6_V6ONLY(inp)) {
1433                         /*
1434                          * if IPV6_V6ONLY flag, ignore connections destined
1435                          * to a v4 addr or v4-mapped addr
1436                          */
1437                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1438                         error = EINVAL;
1439                         goto out_now;
1440                 }
1441         }
1442 #endif                          /* INET6 */
1443         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1444             SCTP_PCB_FLAGS_UNBOUND) {
1445                 /* Bind a ephemeral port */
1446                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1447                 if (error) {
1448                         goto out_now;
1449                 }
1450         }
1451
1452         /* FIX ME: do we want to pass in a vrf on the connect call? */
1453         vrf_id = inp->def_vrf_id;
1454
1455
1456         /* We are GOOD to go */
1457         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1458             inp->sctp_ep.pre_open_stream_count,
1459             inp->sctp_ep.port,
1460             (struct thread *)p,
1461             SCTP_INITIALIZE_AUTH_PARAMS);
1462         if (stcb == NULL) {
1463                 /* Gak! no memory */
1464                 goto out_now;
1465         }
1466         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1467                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1468                 /* Set the connected flag so we can queue data */
1469                 soisconnecting(so);
1470         }
1471         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1472         /* move to second address */
1473         switch (sa->sa_family) {
1474 #ifdef INET
1475         case AF_INET:
1476                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1477                 break;
1478 #endif
1479 #ifdef INET6
1480         case AF_INET6:
1481                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1482                 break;
1483 #endif
1484         default:
1485                 break;
1486         }
1487
1488         error = 0;
1489         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1490         /* Fill in the return id */
1491         if (error) {
1492                 goto out_now;
1493         }
1494         a_id = (sctp_assoc_t *)optval;
1495         *a_id = sctp_get_associd(stcb);
1496
1497         if (delay) {
1498                 /* doing delayed connection */
1499                 stcb->asoc.delayed_connection = 1;
1500                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1501         } else {
1502                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1503                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1504         }
1505         SCTP_TCB_UNLOCK(stcb);
1506 out_now:
1507         if (creat_lock_on) {
1508                 SCTP_ASOC_CREATE_UNLOCK(inp);
1509         }
1510         SCTP_INP_DECR_REF(inp);
1511         return (error);
1512 }
1513
1514 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1515         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1516             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1517                 SCTP_INP_RLOCK(inp); \
1518                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1519                 if (stcb) { \
1520                         SCTP_TCB_LOCK(stcb); \
1521                 } \
1522                 SCTP_INP_RUNLOCK(inp); \
1523         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1524                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1525                 if (stcb == NULL) { \
1526                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1527                         error = ENOENT; \
1528                         break; \
1529                 } \
1530         } else { \
1531                 stcb = NULL; \
1532         } \
1533 }
1534
1535
1536 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1537         if (size < sizeof(type)) { \
1538                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1539                 error = EINVAL; \
1540                 break; \
1541         } else { \
1542                 destp = (type *)srcp; \
1543         } \
1544 }
1545
1546 static int
1547 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1548     void *p)
1549 {
1550         struct sctp_inpcb *inp = NULL;
1551         int error, val = 0;
1552         struct sctp_tcb *stcb = NULL;
1553
1554         if (optval == NULL) {
1555                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1556                 return (EINVAL);
1557         }
1558
1559         inp = (struct sctp_inpcb *)so->so_pcb;
1560         if (inp == NULL) {
1561                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1562                 return EINVAL;
1563         }
1564         error = 0;
1565
1566         switch (optname) {
1567         case SCTP_NODELAY:
1568         case SCTP_AUTOCLOSE:
1569         case SCTP_EXPLICIT_EOR:
1570         case SCTP_AUTO_ASCONF:
1571         case SCTP_DISABLE_FRAGMENTS:
1572         case SCTP_I_WANT_MAPPED_V4_ADDR:
1573         case SCTP_USE_EXT_RCVINFO:
1574                 SCTP_INP_RLOCK(inp);
1575                 switch (optname) {
1576                 case SCTP_DISABLE_FRAGMENTS:
1577                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1578                         break;
1579                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1580                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1581                         break;
1582                 case SCTP_AUTO_ASCONF:
1583                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1584                                 /* only valid for bound all sockets */
1585                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1586                         } else {
1587                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1588                                 error = EINVAL;
1589                                 goto flags_out;
1590                         }
1591                         break;
1592                 case SCTP_EXPLICIT_EOR:
1593                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1594                         break;
1595                 case SCTP_NODELAY:
1596                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1597                         break;
1598                 case SCTP_USE_EXT_RCVINFO:
1599                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1600                         break;
1601                 case SCTP_AUTOCLOSE:
1602                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1603                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1604                         else
1605                                 val = 0;
1606                         break;
1607
1608                 default:
1609                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1610                         error = ENOPROTOOPT;
1611                 }               /* end switch (sopt->sopt_name) */
1612                 if (*optsize < sizeof(val)) {
1613                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1614                         error = EINVAL;
1615                 }
1616 flags_out:
1617                 SCTP_INP_RUNLOCK(inp);
1618                 if (error == 0) {
1619                         /* return the option value */
1620                         *(int *)optval = val;
1621                         *optsize = sizeof(val);
1622                 }
1623                 break;
1624         case SCTP_GET_PACKET_LOG:
1625                 {
1626 #ifdef  SCTP_PACKET_LOGGING
1627                         uint8_t *target;
1628                         int ret;
1629
1630                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1631                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1632                         *optsize = ret;
1633 #else
1634                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1635                         error = EOPNOTSUPP;
1636 #endif
1637                         break;
1638                 }
1639         case SCTP_REUSE_PORT:
1640                 {
1641                         uint32_t *value;
1642
1643                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1644                                 /* Can't do this for a 1-m socket */
1645                                 error = EINVAL;
1646                                 break;
1647                         }
1648                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1649                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1650                         *optsize = sizeof(uint32_t);
1651                         break;
1652                 }
1653         case SCTP_PARTIAL_DELIVERY_POINT:
1654                 {
1655                         uint32_t *value;
1656
1657                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1658                         *value = inp->partial_delivery_point;
1659                         *optsize = sizeof(uint32_t);
1660                         break;
1661                 }
1662         case SCTP_FRAGMENT_INTERLEAVE:
1663                 {
1664                         uint32_t *value;
1665
1666                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1667                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1668                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1669                                         *value = SCTP_FRAG_LEVEL_2;
1670                                 } else {
1671                                         *value = SCTP_FRAG_LEVEL_1;
1672                                 }
1673                         } else {
1674                                 *value = SCTP_FRAG_LEVEL_0;
1675                         }
1676                         *optsize = sizeof(uint32_t);
1677                         break;
1678                 }
1679         case SCTP_INTERLEAVING_SUPPORTED:
1680                 {
1681                         struct sctp_assoc_value *av;
1682
1683                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1684                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1685
1686                         if (stcb) {
1687                                 av->assoc_value = stcb->asoc.idata_supported;
1688                                 SCTP_TCB_UNLOCK(stcb);
1689                         } else {
1690                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1691                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1692                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1693                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1694                                         SCTP_INP_RLOCK(inp);
1695                                         if (inp->idata_supported) {
1696                                                 av->assoc_value = 1;
1697                                         } else {
1698                                                 av->assoc_value = 0;
1699                                         }
1700                                         SCTP_INP_RUNLOCK(inp);
1701                                 } else {
1702                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1703                                         error = EINVAL;
1704                                 }
1705                         }
1706                         if (error == 0) {
1707                                 *optsize = sizeof(struct sctp_assoc_value);
1708                         }
1709                         break;
1710                 }
1711         case SCTP_CMT_ON_OFF:
1712                 {
1713                         struct sctp_assoc_value *av;
1714
1715                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1716                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1717                         if (stcb) {
1718                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1719                                 SCTP_TCB_UNLOCK(stcb);
1720                         } else {
1721                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1722                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1723                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1724                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1725                                         SCTP_INP_RLOCK(inp);
1726                                         av->assoc_value = inp->sctp_cmt_on_off;
1727                                         SCTP_INP_RUNLOCK(inp);
1728                                 } else {
1729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1730                                         error = EINVAL;
1731                                 }
1732                         }
1733                         if (error == 0) {
1734                                 *optsize = sizeof(struct sctp_assoc_value);
1735                         }
1736                         break;
1737                 }
1738         case SCTP_PLUGGABLE_CC:
1739                 {
1740                         struct sctp_assoc_value *av;
1741
1742                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1743                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1744                         if (stcb) {
1745                                 av->assoc_value = stcb->asoc.congestion_control_module;
1746                                 SCTP_TCB_UNLOCK(stcb);
1747                         } else {
1748                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1749                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1750                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1751                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1752                                         SCTP_INP_RLOCK(inp);
1753                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1754                                         SCTP_INP_RUNLOCK(inp);
1755                                 } else {
1756                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1757                                         error = EINVAL;
1758                                 }
1759                         }
1760                         if (error == 0) {
1761                                 *optsize = sizeof(struct sctp_assoc_value);
1762                         }
1763                         break;
1764                 }
1765         case SCTP_CC_OPTION:
1766                 {
1767                         struct sctp_cc_option *cc_opt;
1768
1769                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1770                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1771                         if (stcb == NULL) {
1772                                 error = EINVAL;
1773                         } else {
1774                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1775                                         error = ENOTSUP;
1776                                 } else {
1777                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1778                                         *optsize = sizeof(struct sctp_cc_option);
1779                                 }
1780                                 SCTP_TCB_UNLOCK(stcb);
1781                         }
1782                         break;
1783                 }
1784         case SCTP_PLUGGABLE_SS:
1785                 {
1786                         struct sctp_assoc_value *av;
1787
1788                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1789                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1790                         if (stcb) {
1791                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1792                                 SCTP_TCB_UNLOCK(stcb);
1793                         } else {
1794                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1795                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1796                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1797                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1798                                         SCTP_INP_RLOCK(inp);
1799                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1800                                         SCTP_INP_RUNLOCK(inp);
1801                                 } else {
1802                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1803                                         error = EINVAL;
1804                                 }
1805                         }
1806                         if (error == 0) {
1807                                 *optsize = sizeof(struct sctp_assoc_value);
1808                         }
1809                         break;
1810                 }
1811         case SCTP_SS_VALUE:
1812                 {
1813                         struct sctp_stream_value *av;
1814
1815                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1816                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1817                         if (stcb) {
1818                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1819                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1820                                     &av->stream_value) < 0)) {
1821                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1822                                         error = EINVAL;
1823                                 } else {
1824                                         *optsize = sizeof(struct sctp_stream_value);
1825                                 }
1826                                 SCTP_TCB_UNLOCK(stcb);
1827                         } else {
1828                                 /*
1829                                  * Can't get stream value without
1830                                  * association
1831                                  */
1832                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1833                                 error = EINVAL;
1834                         }
1835                         break;
1836                 }
1837         case SCTP_GET_ADDR_LEN:
1838                 {
1839                         struct sctp_assoc_value *av;
1840
1841                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1842                         error = EINVAL;
1843 #ifdef INET
1844                         if (av->assoc_value == AF_INET) {
1845                                 av->assoc_value = sizeof(struct sockaddr_in);
1846                                 error = 0;
1847                         }
1848 #endif
1849 #ifdef INET6
1850                         if (av->assoc_value == AF_INET6) {
1851                                 av->assoc_value = sizeof(struct sockaddr_in6);
1852                                 error = 0;
1853                         }
1854 #endif
1855                         if (error) {
1856                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1857                         } else {
1858                                 *optsize = sizeof(struct sctp_assoc_value);
1859                         }
1860                         break;
1861                 }
1862         case SCTP_GET_ASSOC_NUMBER:
1863                 {
1864                         uint32_t *value, cnt;
1865
1866                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1867                         SCTP_INP_RLOCK(inp);
1868                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1869                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1870                                 /* Can't do this for a 1-1 socket */
1871                                 error = EINVAL;
1872                                 SCTP_INP_RUNLOCK(inp);
1873                                 break;
1874                         }
1875                         cnt = 0;
1876                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1877                                 cnt++;
1878                         }
1879                         SCTP_INP_RUNLOCK(inp);
1880                         *value = cnt;
1881                         *optsize = sizeof(uint32_t);
1882                         break;
1883                 }
1884         case SCTP_GET_ASSOC_ID_LIST:
1885                 {
1886                         struct sctp_assoc_ids *ids;
1887                         uint32_t at;
1888                         size_t limit;
1889
1890                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1891                         SCTP_INP_RLOCK(inp);
1892                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1893                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1894                                 /* Can't do this for a 1-1 socket */
1895                                 error = EINVAL;
1896                                 SCTP_INP_RUNLOCK(inp);
1897                                 break;
1898                         }
1899                         at = 0;
1900                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1901                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1902                                 if (at < limit) {
1903                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1904                                         if (at == 0) {
1905                                                 error = EINVAL;
1906                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1907                                                 break;
1908                                         }
1909                                 } else {
1910                                         error = EINVAL;
1911                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1912                                         break;
1913                                 }
1914                         }
1915                         SCTP_INP_RUNLOCK(inp);
1916                         if (error == 0) {
1917                                 ids->gaids_number_of_ids = at;
1918                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1919                         }
1920                         break;
1921                 }
1922         case SCTP_CONTEXT:
1923                 {
1924                         struct sctp_assoc_value *av;
1925
1926                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1927                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1928
1929                         if (stcb) {
1930                                 av->assoc_value = stcb->asoc.context;
1931                                 SCTP_TCB_UNLOCK(stcb);
1932                         } else {
1933                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1934                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1935                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1936                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1937                                         SCTP_INP_RLOCK(inp);
1938                                         av->assoc_value = inp->sctp_context;
1939                                         SCTP_INP_RUNLOCK(inp);
1940                                 } else {
1941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1942                                         error = EINVAL;
1943                                 }
1944                         }
1945                         if (error == 0) {
1946                                 *optsize = sizeof(struct sctp_assoc_value);
1947                         }
1948                         break;
1949                 }
1950         case SCTP_VRF_ID:
1951                 {
1952                         uint32_t *default_vrfid;
1953
1954                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1955                         *default_vrfid = inp->def_vrf_id;
1956                         *optsize = sizeof(uint32_t);
1957                         break;
1958                 }
1959         case SCTP_GET_ASOC_VRF:
1960                 {
1961                         struct sctp_assoc_value *id;
1962
1963                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1964                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1965                         if (stcb == NULL) {
1966                                 error = EINVAL;
1967                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1968                         } else {
1969                                 id->assoc_value = stcb->asoc.vrf_id;
1970                                 SCTP_TCB_UNLOCK(stcb);
1971                                 *optsize = sizeof(struct sctp_assoc_value);
1972                         }
1973                         break;
1974                 }
1975         case SCTP_GET_VRF_IDS:
1976                 {
1977                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1978                         error = EOPNOTSUPP;
1979                         break;
1980                 }
1981         case SCTP_GET_NONCE_VALUES:
1982                 {
1983                         struct sctp_get_nonce_values *gnv;
1984
1985                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1986                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1987
1988                         if (stcb) {
1989                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1990                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1991                                 SCTP_TCB_UNLOCK(stcb);
1992                                 *optsize = sizeof(struct sctp_get_nonce_values);
1993                         } else {
1994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1995                                 error = ENOTCONN;
1996                         }
1997                         break;
1998                 }
1999         case SCTP_DELAYED_SACK:
2000                 {
2001                         struct sctp_sack_info *sack;
2002
2003                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2004                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2005                         if (stcb) {
2006                                 sack->sack_delay = stcb->asoc.delayed_ack;
2007                                 sack->sack_freq = stcb->asoc.sack_freq;
2008                                 SCTP_TCB_UNLOCK(stcb);
2009                         } else {
2010                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2011                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2012                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2013                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
2014                                         SCTP_INP_RLOCK(inp);
2015                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2016                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2017                                         SCTP_INP_RUNLOCK(inp);
2018                                 } else {
2019                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2020                                         error = EINVAL;
2021                                 }
2022                         }
2023                         if (error == 0) {
2024                                 *optsize = sizeof(struct sctp_sack_info);
2025                         }
2026                         break;
2027                 }
2028         case SCTP_GET_SNDBUF_USE:
2029                 {
2030                         struct sctp_sockstat *ss;
2031
2032                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2033                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2034
2035                         if (stcb) {
2036                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2037                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2038                                     stcb->asoc.size_on_all_streams);
2039                                 SCTP_TCB_UNLOCK(stcb);
2040                                 *optsize = sizeof(struct sctp_sockstat);
2041                         } else {
2042                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2043                                 error = ENOTCONN;
2044                         }
2045                         break;
2046                 }
2047         case SCTP_MAX_BURST:
2048                 {
2049                         struct sctp_assoc_value *av;
2050
2051                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2052                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2053
2054                         if (stcb) {
2055                                 av->assoc_value = stcb->asoc.max_burst;
2056                                 SCTP_TCB_UNLOCK(stcb);
2057                         } else {
2058                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2059                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2060                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2061                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2062                                         SCTP_INP_RLOCK(inp);
2063                                         av->assoc_value = inp->sctp_ep.max_burst;
2064                                         SCTP_INP_RUNLOCK(inp);
2065                                 } else {
2066                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2067                                         error = EINVAL;
2068                                 }
2069                         }
2070                         if (error == 0) {
2071                                 *optsize = sizeof(struct sctp_assoc_value);
2072                         }
2073                         break;
2074                 }
2075         case SCTP_MAXSEG:
2076                 {
2077                         struct sctp_assoc_value *av;
2078                         int ovh;
2079
2080                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2081                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2082
2083                         if (stcb) {
2084                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2085                                 SCTP_TCB_UNLOCK(stcb);
2086                         } else {
2087                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2088                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2089                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2090                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2091                                         SCTP_INP_RLOCK(inp);
2092                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2093                                                 ovh = SCTP_MED_OVERHEAD;
2094                                         } else {
2095                                                 ovh = SCTP_MED_V4_OVERHEAD;
2096                                         }
2097                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2098                                                 av->assoc_value = 0;
2099                                         else
2100                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2101                                         SCTP_INP_RUNLOCK(inp);
2102                                 } else {
2103                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2104                                         error = EINVAL;
2105                                 }
2106                         }
2107                         if (error == 0) {
2108                                 *optsize = sizeof(struct sctp_assoc_value);
2109                         }
2110                         break;
2111                 }
2112         case SCTP_GET_STAT_LOG:
2113                 error = sctp_fill_stat_log(optval, optsize);
2114                 break;
2115         case SCTP_EVENTS:
2116                 {
2117                         struct sctp_event_subscribe *events;
2118
2119                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2120                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2121                         SCTP_INP_RLOCK(inp);
2122                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2123                                 events->sctp_data_io_event = 1;
2124
2125                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2126                                 events->sctp_association_event = 1;
2127
2128                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2129                                 events->sctp_address_event = 1;
2130
2131                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2132                                 events->sctp_send_failure_event = 1;
2133
2134                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2135                                 events->sctp_peer_error_event = 1;
2136
2137                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2138                                 events->sctp_shutdown_event = 1;
2139
2140                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2141                                 events->sctp_partial_delivery_event = 1;
2142
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2144                                 events->sctp_adaptation_layer_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2147                                 events->sctp_authentication_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2150                                 events->sctp_sender_dry_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2153                                 events->sctp_stream_reset_event = 1;
2154                         SCTP_INP_RUNLOCK(inp);
2155                         *optsize = sizeof(struct sctp_event_subscribe);
2156                         break;
2157                 }
2158         case SCTP_ADAPTATION_LAYER:
2159                 {
2160                         uint32_t *value;
2161
2162                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2163
2164                         SCTP_INP_RLOCK(inp);
2165                         *value = inp->sctp_ep.adaptation_layer_indicator;
2166                         SCTP_INP_RUNLOCK(inp);
2167                         *optsize = sizeof(uint32_t);
2168                         break;
2169                 }
2170         case SCTP_SET_INITIAL_DBG_SEQ:
2171                 {
2172                         uint32_t *value;
2173
2174                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2175                         SCTP_INP_RLOCK(inp);
2176                         *value = inp->sctp_ep.initial_sequence_debug;
2177                         SCTP_INP_RUNLOCK(inp);
2178                         *optsize = sizeof(uint32_t);
2179                         break;
2180                 }
2181         case SCTP_GET_LOCAL_ADDR_SIZE:
2182                 {
2183                         uint32_t *value;
2184
2185                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2186                         SCTP_INP_RLOCK(inp);
2187                         *value = sctp_count_max_addresses(inp);
2188                         SCTP_INP_RUNLOCK(inp);
2189                         *optsize = sizeof(uint32_t);
2190                         break;
2191                 }
2192         case SCTP_GET_REMOTE_ADDR_SIZE:
2193                 {
2194                         uint32_t *value;
2195                         size_t size;
2196                         struct sctp_nets *net;
2197
2198                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2199                         /* FIXME MT: change to sctp_assoc_value? */
2200                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2201
2202                         if (stcb) {
2203                                 size = 0;
2204                                 /* Count the sizes */
2205                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2206                                         switch (net->ro._l_addr.sa.sa_family) {
2207 #ifdef INET
2208                                         case AF_INET:
2209 #ifdef INET6
2210                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2211                                                         size += sizeof(struct sockaddr_in6);
2212                                                 } else {
2213                                                         size += sizeof(struct sockaddr_in);
2214                                                 }
2215 #else
2216                                                 size += sizeof(struct sockaddr_in);
2217 #endif
2218                                                 break;
2219 #endif
2220 #ifdef INET6
2221                                         case AF_INET6:
2222                                                 size += sizeof(struct sockaddr_in6);
2223                                                 break;
2224 #endif
2225                                         default:
2226                                                 break;
2227                                         }
2228                                 }
2229                                 SCTP_TCB_UNLOCK(stcb);
2230                                 *value = (uint32_t)size;
2231                                 *optsize = sizeof(uint32_t);
2232                         } else {
2233                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2234                                 error = ENOTCONN;
2235                         }
2236                         break;
2237                 }
2238         case SCTP_GET_PEER_ADDRESSES:
2239                 /*
2240                  * Get the address information, an array is passed in to
2241                  * fill up we pack it.
2242                  */
2243                 {
2244                         size_t cpsz, left;
2245                         struct sockaddr_storage *sas;
2246                         struct sctp_nets *net;
2247                         struct sctp_getaddresses *saddr;
2248
2249                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2250                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2251
2252                         if (stcb) {
2253                                 left = (*optsize) - sizeof(sctp_assoc_t);
2254                                 *optsize = sizeof(sctp_assoc_t);
2255                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2256
2257                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2258                                         switch (net->ro._l_addr.sa.sa_family) {
2259 #ifdef INET
2260                                         case AF_INET:
2261 #ifdef INET6
2262                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2263                                                         cpsz = sizeof(struct sockaddr_in6);
2264                                                 } else {
2265                                                         cpsz = sizeof(struct sockaddr_in);
2266                                                 }
2267 #else
2268                                                 cpsz = sizeof(struct sockaddr_in);
2269 #endif
2270                                                 break;
2271 #endif
2272 #ifdef INET6
2273                                         case AF_INET6:
2274                                                 cpsz = sizeof(struct sockaddr_in6);
2275                                                 break;
2276 #endif
2277                                         default:
2278                                                 cpsz = 0;
2279                                                 break;
2280                                         }
2281                                         if (cpsz == 0) {
2282                                                 break;
2283                                         }
2284                                         if (left < cpsz) {
2285                                                 /* not enough room. */
2286                                                 break;
2287                                         }
2288 #if defined(INET) && defined(INET6)
2289                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2290                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2291                                                 /* Must map the address */
2292                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2293                                                     (struct sockaddr_in6 *)sas);
2294                                         } else {
2295                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2296                                         }
2297 #else
2298                                         memcpy(sas, &net->ro._l_addr, cpsz);
2299 #endif
2300                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2301
2302                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2303                                         left -= cpsz;
2304                                         *optsize += cpsz;
2305                                 }
2306                                 SCTP_TCB_UNLOCK(stcb);
2307                         } else {
2308                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2309                                 error = ENOENT;
2310                         }
2311                         break;
2312                 }
2313         case SCTP_GET_LOCAL_ADDRESSES:
2314                 {
2315                         size_t limit, actual;
2316                         struct sockaddr_storage *sas;
2317                         struct sctp_getaddresses *saddr;
2318
2319                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2320                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2321
2322                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2323                         limit = *optsize - sizeof(sctp_assoc_t);
2324                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2325                         if (stcb) {
2326                                 SCTP_TCB_UNLOCK(stcb);
2327                         }
2328                         *optsize = sizeof(sctp_assoc_t) + actual;
2329                         break;
2330                 }
2331         case SCTP_PEER_ADDR_PARAMS:
2332                 {
2333                         struct sctp_paddrparams *paddrp;
2334                         struct sctp_nets *net;
2335                         struct sockaddr *addr;
2336 #if defined(INET) && defined(INET6)
2337                         struct sockaddr_in sin_store;
2338 #endif
2339
2340                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2341                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2342
2343 #if defined(INET) && defined(INET6)
2344                         if (paddrp->spp_address.ss_family == AF_INET6) {
2345                                 struct sockaddr_in6 *sin6;
2346
2347                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2348                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2349                                         in6_sin6_2_sin(&sin_store, sin6);
2350                                         addr = (struct sockaddr *)&sin_store;
2351                                 } else {
2352                                         addr = (struct sockaddr *)&paddrp->spp_address;
2353                                 }
2354                         } else {
2355                                 addr = (struct sockaddr *)&paddrp->spp_address;
2356                         }
2357 #else
2358                         addr = (struct sockaddr *)&paddrp->spp_address;
2359 #endif
2360                         if (stcb != NULL) {
2361                                 net = sctp_findnet(stcb, addr);
2362                         } else {
2363                                 /*
2364                                  * We increment here since
2365                                  * sctp_findassociation_ep_addr() wil do a
2366                                  * decrement if it finds the stcb as long as
2367                                  * the locked tcb (last argument) is NOT a
2368                                  * TCB.. aka NULL.
2369                                  */
2370                                 net = NULL;
2371                                 SCTP_INP_INCR_REF(inp);
2372                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2373                                 if (stcb == NULL) {
2374                                         SCTP_INP_DECR_REF(inp);
2375                                 }
2376                         }
2377                         if ((stcb != NULL) && (net == NULL)) {
2378 #ifdef INET
2379                                 if (addr->sa_family == AF_INET) {
2380                                         struct sockaddr_in *sin;
2381
2382                                         sin = (struct sockaddr_in *)addr;
2383                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2384                                                 error = EINVAL;
2385                                                 SCTP_TCB_UNLOCK(stcb);
2386                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2387                                                 break;
2388                                         }
2389                                 } else
2390 #endif
2391 #ifdef INET6
2392                                 if (addr->sa_family == AF_INET6) {
2393                                         struct sockaddr_in6 *sin6;
2394
2395                                         sin6 = (struct sockaddr_in6 *)addr;
2396                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2397                                                 error = EINVAL;
2398                                                 SCTP_TCB_UNLOCK(stcb);
2399                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2400                                                 break;
2401                                         }
2402                                 } else
2403 #endif
2404                                 {
2405                                         error = EAFNOSUPPORT;
2406                                         SCTP_TCB_UNLOCK(stcb);
2407                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2408                                         break;
2409                                 }
2410                         }
2411
2412                         if (stcb != NULL) {
2413                                 /* Applies to the specific association */
2414                                 paddrp->spp_flags = 0;
2415                                 if (net != NULL) {
2416                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2417                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2418                                         paddrp->spp_pathmtu = net->mtu;
2419                                         switch (net->ro._l_addr.sa.sa_family) {
2420 #ifdef INET
2421                                         case AF_INET:
2422                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2423                                                 break;
2424 #endif
2425 #ifdef INET6
2426                                         case AF_INET6:
2427                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2428                                                 break;
2429 #endif
2430                                         default:
2431                                                 break;
2432                                         }
2433                                         /* get flags for HB */
2434                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2435                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2436                                         } else {
2437                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2438                                         }
2439                                         /* get flags for PMTU */
2440                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2441                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2442                                         } else {
2443                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2444                                         }
2445                                         if (net->dscp & 0x01) {
2446                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2447                                                 paddrp->spp_flags |= SPP_DSCP;
2448                                         }
2449 #ifdef INET6
2450                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2451                                             (net->flowlabel & 0x80000000)) {
2452                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2453                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2454                                         }
2455 #endif
2456                                 } else {
2457                                         /*
2458                                          * No destination so return default
2459                                          * value
2460                                          */
2461                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2462                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2463                                         if (stcb->asoc.default_dscp & 0x01) {
2464                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2465                                                 paddrp->spp_flags |= SPP_DSCP;
2466                                         }
2467 #ifdef INET6
2468                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2469                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2470                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2471                                         }
2472 #endif
2473                                         /* default settings should be these */
2474                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2475                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2476                                         } else {
2477                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2478                                         }
2479                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2480                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2481                                         } else {
2482                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2483                                         }
2484                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2485                                 }
2486                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2487                                 SCTP_TCB_UNLOCK(stcb);
2488                         } else {
2489                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2490                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2491                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2492                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2493                                         /* Use endpoint defaults */
2494                                         SCTP_INP_RLOCK(inp);
2495                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2496                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2497                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2498                                         /* get inp's default */
2499                                         if (inp->sctp_ep.default_dscp & 0x01) {
2500                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2501                                                 paddrp->spp_flags |= SPP_DSCP;
2502                                         }
2503 #ifdef INET6
2504                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2505                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2506                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2507                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2508                                         }
2509 #endif
2510                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2511
2512                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2513                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2514                                         } else {
2515                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2516                                         }
2517                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2518                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2519                                         } else {
2520                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2521                                         }
2522                                         SCTP_INP_RUNLOCK(inp);
2523                                 } else {
2524                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2525                                         error = EINVAL;
2526                                 }
2527                         }
2528                         if (error == 0) {
2529                                 *optsize = sizeof(struct sctp_paddrparams);
2530                         }
2531                         break;
2532                 }
2533         case SCTP_GET_PEER_ADDR_INFO:
2534                 {
2535                         struct sctp_paddrinfo *paddri;
2536                         struct sctp_nets *net;
2537                         struct sockaddr *addr;
2538 #if defined(INET) && defined(INET6)
2539                         struct sockaddr_in sin_store;
2540 #endif
2541
2542                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2543                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2544
2545 #if defined(INET) && defined(INET6)
2546                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2547                                 struct sockaddr_in6 *sin6;
2548
2549                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2550                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2551                                         in6_sin6_2_sin(&sin_store, sin6);
2552                                         addr = (struct sockaddr *)&sin_store;
2553                                 } else {
2554                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2555                                 }
2556                         } else {
2557                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2558                         }
2559 #else
2560                         addr = (struct sockaddr *)&paddri->spinfo_address;
2561 #endif
2562                         if (stcb != NULL) {
2563                                 net = sctp_findnet(stcb, addr);
2564                         } else {
2565                                 /*
2566                                  * We increment here since
2567                                  * sctp_findassociation_ep_addr() wil do a
2568                                  * decrement if it finds the stcb as long as
2569                                  * the locked tcb (last argument) is NOT a
2570                                  * TCB.. aka NULL.
2571                                  */
2572                                 net = NULL;
2573                                 SCTP_INP_INCR_REF(inp);
2574                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2575                                 if (stcb == NULL) {
2576                                         SCTP_INP_DECR_REF(inp);
2577                                 }
2578                         }
2579
2580                         if ((stcb != NULL) && (net != NULL)) {
2581                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2582                                         /* It's unconfirmed */
2583                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2584                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2585                                         /* It's active */
2586                                         paddri->spinfo_state = SCTP_ACTIVE;
2587                                 } else {
2588                                         /* It's inactive */
2589                                         paddri->spinfo_state = SCTP_INACTIVE;
2590                                 }
2591                                 paddri->spinfo_cwnd = net->cwnd;
2592                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2593                                 paddri->spinfo_rto = net->RTO;
2594                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2595                                 paddri->spinfo_mtu = net->mtu;
2596                                 switch (addr->sa_family) {
2597 #if defined(INET)
2598                                 case AF_INET:
2599                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2600                                         break;
2601 #endif
2602 #if defined(INET6)
2603                                 case AF_INET6:
2604                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2605                                         break;
2606 #endif
2607                                 default:
2608                                         break;
2609                                 }
2610                                 SCTP_TCB_UNLOCK(stcb);
2611                                 *optsize = sizeof(struct sctp_paddrinfo);
2612                         } else {
2613                                 if (stcb != NULL) {
2614                                         SCTP_TCB_UNLOCK(stcb);
2615                                 }
2616                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2617                                 error = ENOENT;
2618                         }
2619                         break;
2620                 }
2621         case SCTP_PCB_STATUS:
2622                 {
2623                         struct sctp_pcbinfo *spcb;
2624
2625                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2626                         sctp_fill_pcbinfo(spcb);
2627                         *optsize = sizeof(struct sctp_pcbinfo);
2628                         break;
2629                 }
2630         case SCTP_STATUS:
2631                 {
2632                         struct sctp_nets *net;
2633                         struct sctp_status *sstat;
2634
2635                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2636                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2637
2638                         if (stcb == NULL) {
2639                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2640                                 error = EINVAL;
2641                                 break;
2642                         }
2643                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2644                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2645                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2646                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2647                         /*
2648                          * We can't include chunks that have been passed to
2649                          * the socket layer. Only things in queue.
2650                          */
2651                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2652                             stcb->asoc.cnt_on_all_streams);
2653
2654
2655                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2656                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2657                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2658                         net = stcb->asoc.primary_destination;
2659                         if (net != NULL) {
2660                                 memcpy(&sstat->sstat_primary.spinfo_address,
2661                                     &net->ro._l_addr,
2662                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2663                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2664                                 /*
2665                                  * Again the user can get info from
2666                                  * sctp_constants.h for what the state of
2667                                  * the network is.
2668                                  */
2669                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2670                                         /* It's unconfirmed */
2671                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2672                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2673                                         /* It's active */
2674                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2675                                 } else {
2676                                         /* It's inactive */
2677                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2678                                 }
2679                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2680                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2681                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2682                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2683                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2684 #if defined(INET)
2685                                 case AF_INET:
2686                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2687                                         break;
2688 #endif
2689 #if defined(INET6)
2690                                 case AF_INET6:
2691                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2692                                         break;
2693 #endif
2694                                 default:
2695                                         break;
2696                                 }
2697                         } else {
2698                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2699                         }
2700                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2701                         SCTP_TCB_UNLOCK(stcb);
2702                         *optsize = sizeof(struct sctp_status);
2703                         break;
2704                 }
2705         case SCTP_RTOINFO:
2706                 {
2707                         struct sctp_rtoinfo *srto;
2708
2709                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2710                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2711
2712                         if (stcb) {
2713                                 srto->srto_initial = stcb->asoc.initial_rto;
2714                                 srto->srto_max = stcb->asoc.maxrto;
2715                                 srto->srto_min = stcb->asoc.minrto;
2716                                 SCTP_TCB_UNLOCK(stcb);
2717                         } else {
2718                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2719                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2720                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2721                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2722                                         SCTP_INP_RLOCK(inp);
2723                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2724                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2725                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2726                                         SCTP_INP_RUNLOCK(inp);
2727                                 } else {
2728                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2729                                         error = EINVAL;
2730                                 }
2731                         }
2732                         if (error == 0) {
2733                                 *optsize = sizeof(struct sctp_rtoinfo);
2734                         }
2735                         break;
2736                 }
2737         case SCTP_TIMEOUTS:
2738                 {
2739                         struct sctp_timeouts *stimo;
2740
2741                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2742                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2743
2744                         if (stcb) {
2745                                 stimo->stimo_init = stcb->asoc.timoinit;
2746                                 stimo->stimo_data = stcb->asoc.timodata;
2747                                 stimo->stimo_sack = stcb->asoc.timosack;
2748                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2749                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2750                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2751                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2752                                 SCTP_TCB_UNLOCK(stcb);
2753                                 *optsize = sizeof(struct sctp_timeouts);
2754                         } else {
2755                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2756                                 error = EINVAL;
2757                         }
2758                         break;
2759                 }
2760         case SCTP_ASSOCINFO:
2761                 {
2762                         struct sctp_assocparams *sasoc;
2763
2764                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2765                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2766
2767                         if (stcb) {
2768                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2769                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2770                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2771                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2772                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2773                                 SCTP_TCB_UNLOCK(stcb);
2774                         } else {
2775                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2776                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2777                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2778                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2779                                         SCTP_INP_RLOCK(inp);
2780                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2781                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2782                                         sasoc->sasoc_number_peer_destinations = 0;
2783                                         sasoc->sasoc_peer_rwnd = 0;
2784                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2785                                         SCTP_INP_RUNLOCK(inp);
2786                                 } else {
2787                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2788                                         error = EINVAL;
2789                                 }
2790                         }
2791                         if (error == 0) {
2792                                 *optsize = sizeof(struct sctp_assocparams);
2793                         }
2794                         break;
2795                 }
2796         case SCTP_DEFAULT_SEND_PARAM:
2797                 {
2798                         struct sctp_sndrcvinfo *s_info;
2799
2800                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2801                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2802
2803                         if (stcb) {
2804                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2805                                 SCTP_TCB_UNLOCK(stcb);
2806                         } else {
2807                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2808                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2809                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2810                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2811                                         SCTP_INP_RLOCK(inp);
2812                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2813                                         SCTP_INP_RUNLOCK(inp);
2814                                 } else {
2815                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2816                                         error = EINVAL;
2817                                 }
2818                         }
2819                         if (error == 0) {
2820                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2821                         }
2822                         break;
2823                 }
2824         case SCTP_INITMSG:
2825                 {
2826                         struct sctp_initmsg *sinit;
2827
2828                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2829                         SCTP_INP_RLOCK(inp);
2830                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2831                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2832                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2833                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2834                         SCTP_INP_RUNLOCK(inp);
2835                         *optsize = sizeof(struct sctp_initmsg);
2836                         break;
2837                 }
2838         case SCTP_PRIMARY_ADDR:
2839                 /* we allow a "get" operation on this */
2840                 {
2841                         struct sctp_setprim *ssp;
2842
2843                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2844                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2845
2846                         if (stcb) {
2847                                 union sctp_sockstore *addr;
2848
2849                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2850                                 switch (addr->sa.sa_family) {
2851 #ifdef INET
2852                                 case AF_INET:
2853 #ifdef INET6
2854                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2855                                                 in6_sin_2_v4mapsin6(&addr->sin,
2856                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2857                                         } else {
2858                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2859                                         }
2860 #else
2861                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2862 #endif
2863                                         break;
2864 #endif
2865 #ifdef INET6
2866                                 case AF_INET6:
2867                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2868                                         break;
2869 #endif
2870                                 default:
2871                                         break;
2872                                 }
2873                                 SCTP_TCB_UNLOCK(stcb);
2874                                 *optsize = sizeof(struct sctp_setprim);
2875                         } else {
2876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2877                                 error = EINVAL;
2878                         }
2879                         break;
2880                 }
2881         case SCTP_HMAC_IDENT:
2882                 {
2883                         struct sctp_hmacalgo *shmac;
2884                         sctp_hmaclist_t *hmaclist;
2885                         uint32_t size;
2886                         int i;
2887
2888                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2889
2890                         SCTP_INP_RLOCK(inp);
2891                         hmaclist = inp->sctp_ep.local_hmacs;
2892                         if (hmaclist == NULL) {
2893                                 /* no HMACs to return */
2894                                 *optsize = sizeof(*shmac);
2895                                 SCTP_INP_RUNLOCK(inp);
2896                                 break;
2897                         }
2898                         /* is there room for all of the hmac ids? */
2899                         size = sizeof(*shmac) + (hmaclist->num_algo *
2900                             sizeof(shmac->shmac_idents[0]));
2901                         if ((size_t)(*optsize) < size) {
2902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2903                                 error = EINVAL;
2904                                 SCTP_INP_RUNLOCK(inp);
2905                                 break;
2906                         }
2907                         /* copy in the list */
2908                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2909                         for (i = 0; i < hmaclist->num_algo; i++) {
2910                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2911                         }
2912                         SCTP_INP_RUNLOCK(inp);
2913                         *optsize = size;
2914                         break;
2915                 }
2916         case SCTP_AUTH_ACTIVE_KEY:
2917                 {
2918                         struct sctp_authkeyid *scact;
2919
2920                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2921                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2922
2923                         if (stcb) {
2924                                 /* get the active key on the assoc */
2925                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2926                                 SCTP_TCB_UNLOCK(stcb);
2927                         } else {
2928                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2929                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2930                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2931                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2932                                         /* get the endpoint active key */
2933                                         SCTP_INP_RLOCK(inp);
2934                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2935                                         SCTP_INP_RUNLOCK(inp);
2936                                 } else {
2937                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2938                                         error = EINVAL;
2939                                 }
2940                         }
2941                         if (error == 0) {
2942                                 *optsize = sizeof(struct sctp_authkeyid);
2943                         }
2944                         break;
2945                 }
2946         case SCTP_LOCAL_AUTH_CHUNKS:
2947                 {
2948                         struct sctp_authchunks *sac;
2949                         sctp_auth_chklist_t *chklist = NULL;
2950                         size_t size = 0;
2951
2952                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2953                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2954
2955                         if (stcb) {
2956                                 /* get off the assoc */
2957                                 chklist = stcb->asoc.local_auth_chunks;
2958                                 /* is there enough space? */
2959                                 size = sctp_auth_get_chklist_size(chklist);
2960                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2961                                         error = EINVAL;
2962                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2963                                 } else {
2964                                         /* copy in the chunks */
2965                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2966                                         sac->gauth_number_of_chunks = (uint32_t)size;
2967                                         *optsize = sizeof(struct sctp_authchunks) + size;
2968                                 }
2969                                 SCTP_TCB_UNLOCK(stcb);
2970                         } else {
2971                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2972                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2973                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2974                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2975                                         /* get off the endpoint */
2976                                         SCTP_INP_RLOCK(inp);
2977                                         chklist = inp->sctp_ep.local_auth_chunks;
2978                                         /* is there enough space? */
2979                                         size = sctp_auth_get_chklist_size(chklist);
2980                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2981                                                 error = EINVAL;
2982                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2983                                         } else {
2984                                                 /* copy in the chunks */
2985                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2986                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2987                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2988                                         }
2989                                         SCTP_INP_RUNLOCK(inp);
2990                                 } else {
2991                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2992                                         error = EINVAL;
2993                                 }
2994                         }
2995                         break;
2996                 }
2997         case SCTP_PEER_AUTH_CHUNKS:
2998                 {
2999                         struct sctp_authchunks *sac;
3000                         sctp_auth_chklist_t *chklist = NULL;
3001                         size_t size = 0;
3002
3003                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3004                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3005
3006                         if (stcb) {
3007                                 /* get off the assoc */
3008                                 chklist = stcb->asoc.peer_auth_chunks;
3009                                 /* is there enough space? */
3010                                 size = sctp_auth_get_chklist_size(chklist);
3011                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3012                                         error = EINVAL;
3013                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3014                                 } else {
3015                                         /* copy in the chunks */
3016                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3017                                         sac->gauth_number_of_chunks = (uint32_t)size;
3018                                         *optsize = sizeof(struct sctp_authchunks) + size;
3019                                 }
3020                                 SCTP_TCB_UNLOCK(stcb);
3021                         } else {
3022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3023                                 error = ENOENT;
3024                         }
3025                         break;
3026                 }
3027         case SCTP_EVENT:
3028                 {
3029                         struct sctp_event *event;
3030                         uint32_t event_type;
3031
3032                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3033                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3034
3035                         switch (event->se_type) {
3036                         case SCTP_ASSOC_CHANGE:
3037                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3038                                 break;
3039                         case SCTP_PEER_ADDR_CHANGE:
3040                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3041                                 break;
3042                         case SCTP_REMOTE_ERROR:
3043                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3044                                 break;
3045                         case SCTP_SEND_FAILED:
3046                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3047                                 break;
3048                         case SCTP_SHUTDOWN_EVENT:
3049                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3050                                 break;
3051                         case SCTP_ADAPTATION_INDICATION:
3052                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3053                                 break;
3054                         case SCTP_PARTIAL_DELIVERY_EVENT:
3055                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3056                                 break;
3057                         case SCTP_AUTHENTICATION_EVENT:
3058                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3059                                 break;
3060                         case SCTP_STREAM_RESET_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3062                                 break;
3063                         case SCTP_SENDER_DRY_EVENT:
3064                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3065                                 break;
3066                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3067                                 event_type = 0;
3068                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3069                                 error = ENOTSUP;
3070                                 break;
3071                         case SCTP_ASSOC_RESET_EVENT:
3072                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3073                                 break;
3074                         case SCTP_STREAM_CHANGE_EVENT:
3075                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3076                                 break;
3077                         case SCTP_SEND_FAILED_EVENT:
3078                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3079                                 break;
3080                         default:
3081                                 event_type = 0;
3082                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3083                                 error = EINVAL;
3084                                 break;
3085                         }
3086                         if (event_type > 0) {
3087                                 if (stcb) {
3088                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3089                                 } else {
3090                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3091                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3092                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3093                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3094                                                 SCTP_INP_RLOCK(inp);
3095                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3096                                                 SCTP_INP_RUNLOCK(inp);
3097                                         } else {
3098                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                                 error = EINVAL;
3100                                         }
3101                                 }
3102                         }
3103                         if (stcb != NULL) {
3104                                 SCTP_TCB_UNLOCK(stcb);
3105                         }
3106                         if (error == 0) {
3107                                 *optsize = sizeof(struct sctp_event);
3108                         }
3109                         break;
3110                 }
3111         case SCTP_RECVRCVINFO:
3112                 {
3113                         int onoff;
3114
3115                         if (*optsize < sizeof(int)) {
3116                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3117                                 error = EINVAL;
3118                         } else {
3119                                 SCTP_INP_RLOCK(inp);
3120                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3121                                 SCTP_INP_RUNLOCK(inp);
3122                         }
3123                         if (error == 0) {
3124                                 /* return the option value */
3125                                 *(int *)optval = onoff;
3126                                 *optsize = sizeof(int);
3127                         }
3128                         break;
3129                 }
3130         case SCTP_RECVNXTINFO:
3131                 {
3132                         int onoff;
3133
3134                         if (*optsize < sizeof(int)) {
3135                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3136                                 error = EINVAL;
3137                         } else {
3138                                 SCTP_INP_RLOCK(inp);
3139                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3140                                 SCTP_INP_RUNLOCK(inp);
3141                         }
3142                         if (error == 0) {
3143                                 /* return the option value */
3144                                 *(int *)optval = onoff;
3145                                 *optsize = sizeof(int);
3146                         }
3147                         break;
3148                 }
3149         case SCTP_DEFAULT_SNDINFO:
3150                 {
3151                         struct sctp_sndinfo *info;
3152
3153                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3154                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3155
3156                         if (stcb) {
3157                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3158                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3159                                 info->snd_flags &= 0xfff0;
3160                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3161                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3162                                 SCTP_TCB_UNLOCK(stcb);
3163                         } else {
3164                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3165                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3166                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3167                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3168                                         SCTP_INP_RLOCK(inp);
3169                                         info->snd_sid = inp->def_send.sinfo_stream;
3170                                         info->snd_flags = inp->def_send.sinfo_flags;
3171                                         info->snd_flags &= 0xfff0;
3172                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3173                                         info->snd_context = inp->def_send.sinfo_context;
3174                                         SCTP_INP_RUNLOCK(inp);
3175                                 } else {
3176                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3177                                         error = EINVAL;
3178                                 }
3179                         }
3180                         if (error == 0) {
3181                                 *optsize = sizeof(struct sctp_sndinfo);
3182                         }
3183                         break;
3184                 }
3185         case SCTP_DEFAULT_PRINFO:
3186                 {
3187                         struct sctp_default_prinfo *info;
3188
3189                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3190                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3191
3192                         if (stcb) {
3193                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3194                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3195                                 SCTP_TCB_UNLOCK(stcb);
3196                         } else {
3197                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3198                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3199                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3200                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3201                                         SCTP_INP_RLOCK(inp);
3202                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3203                                         info->pr_value = inp->def_send.sinfo_timetolive;
3204                                         SCTP_INP_RUNLOCK(inp);
3205                                 } else {
3206                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3207                                         error = EINVAL;
3208                                 }
3209                         }
3210                         if (error == 0) {
3211                                 *optsize = sizeof(struct sctp_default_prinfo);
3212                         }
3213                         break;
3214                 }
3215         case SCTP_PEER_ADDR_THLDS:
3216                 {
3217                         struct sctp_paddrthlds *thlds;
3218                         struct sctp_nets *net;
3219                         struct sockaddr *addr;
3220 #if defined(INET) && defined(INET6)
3221                         struct sockaddr_in sin_store;
3222 #endif
3223
3224                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3225                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3226
3227 #if defined(INET) && defined(INET6)
3228                         if (thlds->spt_address.ss_family == AF_INET6) {
3229                                 struct sockaddr_in6 *sin6;
3230
3231                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3232                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3233                                         in6_sin6_2_sin(&sin_store, sin6);
3234                                         addr = (struct sockaddr *)&sin_store;
3235                                 } else {
3236                                         addr = (struct sockaddr *)&thlds->spt_address;
3237                                 }
3238                         } else {
3239                                 addr = (struct sockaddr *)&thlds->spt_address;
3240                         }
3241 #else
3242                         addr = (struct sockaddr *)&thlds->spt_address;
3243 #endif
3244                         if (stcb != NULL) {
3245                                 net = sctp_findnet(stcb, addr);
3246                         } else {
3247                                 /*
3248                                  * We increment here since
3249                                  * sctp_findassociation_ep_addr() wil do a
3250                                  * decrement if it finds the stcb as long as
3251                                  * the locked tcb (last argument) is NOT a
3252                                  * TCB.. aka NULL.
3253                                  */
3254                                 net = NULL;
3255                                 SCTP_INP_INCR_REF(inp);
3256                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3257                                 if (stcb == NULL) {
3258                                         SCTP_INP_DECR_REF(inp);
3259                                 }
3260                         }
3261                         if ((stcb != NULL) && (net == NULL)) {
3262 #ifdef INET
3263                                 if (addr->sa_family == AF_INET) {
3264                                         struct sockaddr_in *sin;
3265
3266                                         sin = (struct sockaddr_in *)addr;
3267                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3268                                                 error = EINVAL;
3269                                                 SCTP_TCB_UNLOCK(stcb);
3270                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3271                                                 break;
3272                                         }
3273                                 } else
3274 #endif
3275 #ifdef INET6
3276                                 if (addr->sa_family == AF_INET6) {
3277                                         struct sockaddr_in6 *sin6;
3278
3279                                         sin6 = (struct sockaddr_in6 *)addr;
3280                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3281                                                 error = EINVAL;
3282                                                 SCTP_TCB_UNLOCK(stcb);
3283                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3284                                                 break;
3285                                         }
3286                                 } else
3287 #endif
3288                                 {
3289                                         error = EAFNOSUPPORT;
3290                                         SCTP_TCB_UNLOCK(stcb);
3291                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3292                                         break;
3293                                 }
3294                         }
3295
3296                         if (stcb != NULL) {
3297                                 if (net != NULL) {
3298                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3299                                         thlds->spt_pathpfthld = net->pf_threshold;
3300                                         thlds->spt_pathcpthld = 0xffff;
3301                                 } else {
3302                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3303                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3304                                         thlds->spt_pathcpthld = 0xffff;
3305                                 }
3306                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3307                                 SCTP_TCB_UNLOCK(stcb);
3308                         } else {
3309                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3310                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3311                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3312                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3313                                         /* Use endpoint defaults */
3314                                         SCTP_INP_RLOCK(inp);
3315                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3316                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3317                                         thlds->spt_pathcpthld = 0xffff;
3318                                         SCTP_INP_RUNLOCK(inp);
3319                                 } else {
3320                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3321                                         error = EINVAL;
3322                                 }
3323                         }
3324                         if (error == 0) {
3325                                 *optsize = sizeof(struct sctp_paddrthlds);
3326                         }
3327                         break;
3328                 }
3329         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3330                 {
3331                         struct sctp_udpencaps *encaps;
3332                         struct sctp_nets *net;
3333                         struct sockaddr *addr;
3334 #if defined(INET) && defined(INET6)
3335                         struct sockaddr_in sin_store;
3336 #endif
3337
3338                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3339                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3340
3341 #if defined(INET) && defined(INET6)
3342                         if (encaps->sue_address.ss_family == AF_INET6) {
3343                                 struct sockaddr_in6 *sin6;
3344
3345                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3346                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3347                                         in6_sin6_2_sin(&sin_store, sin6);
3348                                         addr = (struct sockaddr *)&sin_store;
3349                                 } else {
3350                                         addr = (struct sockaddr *)&encaps->sue_address;
3351                                 }
3352                         } else {
3353                                 addr = (struct sockaddr *)&encaps->sue_address;
3354                         }
3355 #else
3356                         addr = (struct sockaddr *)&encaps->sue_address;
3357 #endif
3358                         if (stcb) {
3359                                 net = sctp_findnet(stcb, addr);
3360                         } else {
3361                                 /*
3362                                  * We increment here since
3363                                  * sctp_findassociation_ep_addr() wil do a
3364                                  * decrement if it finds the stcb as long as
3365                                  * the locked tcb (last argument) is NOT a
3366                                  * TCB.. aka NULL.
3367                                  */
3368                                 net = NULL;
3369                                 SCTP_INP_INCR_REF(inp);
3370                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3371                                 if (stcb == NULL) {
3372                                         SCTP_INP_DECR_REF(inp);
3373                                 }
3374                         }
3375                         if ((stcb != NULL) && (net == NULL)) {
3376 #ifdef INET
3377                                 if (addr->sa_family == AF_INET) {
3378                                         struct sockaddr_in *sin;
3379
3380                                         sin = (struct sockaddr_in *)addr;
3381                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3382                                                 error = EINVAL;
3383                                                 SCTP_TCB_UNLOCK(stcb);
3384                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3385                                                 break;
3386                                         }
3387                                 } else
3388 #endif
3389 #ifdef INET6
3390                                 if (addr->sa_family == AF_INET6) {
3391                                         struct sockaddr_in6 *sin6;
3392
3393                                         sin6 = (struct sockaddr_in6 *)addr;
3394                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3395                                                 error = EINVAL;
3396                                                 SCTP_TCB_UNLOCK(stcb);
3397                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3398                                                 break;
3399                                         }
3400                                 } else
3401 #endif
3402                                 {
3403                                         error = EAFNOSUPPORT;
3404                                         SCTP_TCB_UNLOCK(stcb);
3405                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3406                                         break;
3407                                 }
3408                         }
3409
3410                         if (stcb != NULL) {
3411                                 if (net) {
3412                                         encaps->sue_port = net->port;
3413                                 } else {
3414                                         encaps->sue_port = stcb->asoc.port;
3415                                 }
3416                                 SCTP_TCB_UNLOCK(stcb);
3417                         } else {
3418                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3419                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3420                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3421                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3422                                         SCTP_INP_RLOCK(inp);
3423                                         encaps->sue_port = inp->sctp_ep.port;
3424                                         SCTP_INP_RUNLOCK(inp);
3425                                 } else {
3426                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3427                                         error = EINVAL;
3428                                 }
3429                         }
3430                         if (error == 0) {
3431                                 *optsize = sizeof(struct sctp_udpencaps);
3432                         }
3433                         break;
3434                 }
3435         case SCTP_ECN_SUPPORTED:
3436                 {
3437                         struct sctp_assoc_value *av;
3438
3439                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3440                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3441
3442                         if (stcb) {
3443                                 av->assoc_value = stcb->asoc.ecn_supported;
3444                                 SCTP_TCB_UNLOCK(stcb);
3445                         } else {
3446                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3447                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3448                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3449                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3450                                         SCTP_INP_RLOCK(inp);
3451                                         av->assoc_value = inp->ecn_supported;
3452                                         SCTP_INP_RUNLOCK(inp);
3453                                 } else {
3454                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3455                                         error = EINVAL;
3456                                 }
3457                         }
3458                         if (error == 0) {
3459                                 *optsize = sizeof(struct sctp_assoc_value);
3460                         }
3461                         break;
3462                 }
3463         case SCTP_PR_SUPPORTED:
3464                 {
3465                         struct sctp_assoc_value *av;
3466
3467                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3468                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3469
3470                         if (stcb) {
3471                                 av->assoc_value = stcb->asoc.prsctp_supported;
3472                                 SCTP_TCB_UNLOCK(stcb);
3473                         } else {
3474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3476                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3477                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3478                                         SCTP_INP_RLOCK(inp);
3479                                         av->assoc_value = inp->prsctp_supported;
3480                                         SCTP_INP_RUNLOCK(inp);
3481                                 } else {
3482                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3483                                         error = EINVAL;
3484                                 }
3485                         }
3486                         if (error == 0) {
3487                                 *optsize = sizeof(struct sctp_assoc_value);
3488                         }
3489                         break;
3490                 }
3491         case SCTP_AUTH_SUPPORTED:
3492                 {
3493                         struct sctp_assoc_value *av;
3494
3495                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3496                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3497
3498                         if (stcb) {
3499                                 av->assoc_value = stcb->asoc.auth_supported;
3500                                 SCTP_TCB_UNLOCK(stcb);
3501                         } else {
3502                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3503                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3504                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3505                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3506                                         SCTP_INP_RLOCK(inp);
3507                                         av->assoc_value = inp->auth_supported;
3508                                         SCTP_INP_RUNLOCK(inp);
3509                                 } else {
3510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3511                                         error = EINVAL;
3512                                 }
3513                         }
3514                         if (error == 0) {
3515                                 *optsize = sizeof(struct sctp_assoc_value);
3516                         }
3517                         break;
3518                 }
3519         case SCTP_ASCONF_SUPPORTED:
3520                 {
3521                         struct sctp_assoc_value *av;
3522
3523                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3524                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3525
3526                         if (stcb) {
3527                                 av->assoc_value = stcb->asoc.asconf_supported;
3528                                 SCTP_TCB_UNLOCK(stcb);
3529                         } else {
3530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3532                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3533                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3534                                         SCTP_INP_RLOCK(inp);
3535                                         av->assoc_value = inp->asconf_supported;
3536                                         SCTP_INP_RUNLOCK(inp);
3537                                 } else {
3538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3539                                         error = EINVAL;
3540                                 }
3541                         }
3542                         if (error == 0) {
3543                                 *optsize = sizeof(struct sctp_assoc_value);
3544                         }
3545                         break;
3546                 }
3547         case SCTP_RECONFIG_SUPPORTED:
3548                 {
3549                         struct sctp_assoc_value *av;
3550
3551                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3552                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3553
3554                         if (stcb) {
3555                                 av->assoc_value = stcb->asoc.reconfig_supported;
3556                                 SCTP_TCB_UNLOCK(stcb);
3557                         } else {
3558                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3559                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3560                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3561                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3562                                         SCTP_INP_RLOCK(inp);
3563                                         av->assoc_value = inp->reconfig_supported;
3564                                         SCTP_INP_RUNLOCK(inp);
3565                                 } else {
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         if (error == 0) {
3571                                 *optsize = sizeof(struct sctp_assoc_value);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_NRSACK_SUPPORTED:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3581
3582                         if (stcb) {
3583                                 av->assoc_value = stcb->asoc.nrsack_supported;
3584                                 SCTP_TCB_UNLOCK(stcb);
3585                         } else {
3586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3588                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3590                                         SCTP_INP_RLOCK(inp);
3591                                         av->assoc_value = inp->nrsack_supported;
3592                                         SCTP_INP_RUNLOCK(inp);
3593                                 } else {
3594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3595                                         error = EINVAL;
3596                                 }
3597                         }
3598                         if (error == 0) {
3599                                 *optsize = sizeof(struct sctp_assoc_value);
3600                         }
3601                         break;
3602                 }
3603         case SCTP_PKTDROP_SUPPORTED:
3604                 {
3605                         struct sctp_assoc_value *av;
3606
3607                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3608                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3609
3610                         if (stcb) {
3611                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3612                                 SCTP_TCB_UNLOCK(stcb);
3613                         } else {
3614                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3615                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3616                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3617                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3618                                         SCTP_INP_RLOCK(inp);
3619                                         av->assoc_value = inp->pktdrop_supported;
3620                                         SCTP_INP_RUNLOCK(inp);
3621                                 } else {
3622                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3623                                         error = EINVAL;
3624                                 }
3625                         }
3626                         if (error == 0) {
3627                                 *optsize = sizeof(struct sctp_assoc_value);
3628                         }
3629                         break;
3630                 }
3631         case SCTP_ENABLE_STREAM_RESET:
3632                 {
3633                         struct sctp_assoc_value *av;
3634
3635                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3636                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3637
3638                         if (stcb) {
3639                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3640                                 SCTP_TCB_UNLOCK(stcb);
3641                         } else {
3642                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3643                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3644                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3645                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3646                                         SCTP_INP_RLOCK(inp);
3647                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3648                                         SCTP_INP_RUNLOCK(inp);
3649                                 } else {
3650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3651                                         error = EINVAL;
3652                                 }
3653                         }
3654                         if (error == 0) {
3655                                 *optsize = sizeof(struct sctp_assoc_value);
3656                         }
3657                         break;
3658                 }
3659         case SCTP_PR_STREAM_STATUS:
3660                 {
3661                         struct sctp_prstatus *sprstat;
3662                         uint16_t sid;
3663                         uint16_t policy;
3664
3665                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3666                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3667
3668                         sid = sprstat->sprstat_sid;
3669                         policy = sprstat->sprstat_policy;
3670 #if defined(SCTP_DETAILED_STR_STATS)
3671                         if ((stcb != NULL) &&
3672                             (sid < stcb->asoc.streamoutcnt) &&
3673                             (policy != SCTP_PR_SCTP_NONE) &&
3674                             ((policy <= SCTP_PR_SCTP_MAX) ||
3675                             (policy == SCTP_PR_SCTP_ALL))) {
3676                                 if (policy == SCTP_PR_SCTP_ALL) {
3677                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3678                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3679                                 } else {
3680                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3681                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3682                                 }
3683 #else
3684                         if ((stcb != NULL) &&
3685                             (sid < stcb->asoc.streamoutcnt) &&
3686                             (policy == SCTP_PR_SCTP_ALL)) {
3687                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3688                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3689 #endif
3690                         } else {
3691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3692                                 error = EINVAL;
3693                         }
3694                         if (stcb != NULL) {
3695                                 SCTP_TCB_UNLOCK(stcb);
3696                         }
3697                         if (error == 0) {
3698                                 *optsize = sizeof(struct sctp_prstatus);
3699                         }
3700                         break;
3701                 }
3702         case SCTP_PR_ASSOC_STATUS:
3703                 {
3704                         struct sctp_prstatus *sprstat;
3705                         uint16_t policy;
3706
3707                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3708                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3709
3710                         policy = sprstat->sprstat_policy;
3711                         if ((stcb != NULL) &&
3712                             (policy != SCTP_PR_SCTP_NONE) &&
3713                             ((policy <= SCTP_PR_SCTP_MAX) ||
3714                             (policy == SCTP_PR_SCTP_ALL))) {
3715                                 if (policy == SCTP_PR_SCTP_ALL) {
3716                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3717                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3718                                 } else {
3719                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3720                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3721                                 }
3722                         } else {
3723                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3724                                 error = EINVAL;
3725                         }
3726                         if (stcb != NULL) {
3727                                 SCTP_TCB_UNLOCK(stcb);
3728                         }
3729                         if (error == 0) {
3730                                 *optsize = sizeof(struct sctp_prstatus);
3731                         }
3732                         break;
3733                 }
3734         case SCTP_MAX_CWND:
3735                 {
3736                         struct sctp_assoc_value *av;
3737
3738                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3739                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3740
3741                         if (stcb) {
3742                                 av->assoc_value = stcb->asoc.max_cwnd;
3743                                 SCTP_TCB_UNLOCK(stcb);
3744                         } else {
3745                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3746                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3747                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3748                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3749                                         SCTP_INP_RLOCK(inp);
3750                                         av->assoc_value = inp->max_cwnd;
3751                                         SCTP_INP_RUNLOCK(inp);
3752                                 } else {
3753                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3754                                         error = EINVAL;
3755                                 }
3756                         }
3757                         if (error == 0) {
3758                                 *optsize = sizeof(struct sctp_assoc_value);
3759                         }
3760                         break;
3761                 }
3762         default:
3763                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3764                 error = ENOPROTOOPT;
3765                 break;
3766         }                       /* end switch (sopt->sopt_name) */
3767         if (error) {
3768                 *optsize = 0;
3769         }
3770         return (error);
3771 }
3772
3773 static int
3774 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3775     void *p)
3776 {
3777         int error, set_opt;
3778         uint32_t *mopt;
3779         struct sctp_tcb *stcb = NULL;
3780         struct sctp_inpcb *inp = NULL;
3781         uint32_t vrf_id;
3782
3783         if (optval == NULL) {
3784                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3785                 return (EINVAL);
3786         }
3787         inp = (struct sctp_inpcb *)so->so_pcb;
3788         if (inp == NULL) {
3789                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3790                 return (EINVAL);
3791         }
3792         vrf_id = inp->def_vrf_id;
3793
3794         error = 0;
3795         switch (optname) {
3796         case SCTP_NODELAY:
3797         case SCTP_AUTOCLOSE:
3798         case SCTP_AUTO_ASCONF:
3799         case SCTP_EXPLICIT_EOR:
3800         case SCTP_DISABLE_FRAGMENTS:
3801         case SCTP_USE_EXT_RCVINFO:
3802         case SCTP_I_WANT_MAPPED_V4_ADDR:
3803                 /* copy in the option value */
3804                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3805                 set_opt = 0;
3806                 if (error)
3807                         break;
3808                 switch (optname) {
3809                 case SCTP_DISABLE_FRAGMENTS:
3810                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3811                         break;
3812                 case SCTP_AUTO_ASCONF:
3813                         /*
3814                          * NOTE: we don't really support this flag
3815                          */
3816                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3817                                 /* only valid for bound all sockets */
3818                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3819                                     (*mopt != 0)) {
3820                                         /* forbidden by admin */
3821                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3822                                         return (EPERM);
3823                                 }
3824                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3825                         } else {
3826                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3827                                 return (EINVAL);
3828                         }
3829                         break;
3830                 case SCTP_EXPLICIT_EOR:
3831                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3832                         break;
3833                 case SCTP_USE_EXT_RCVINFO:
3834                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3835                         break;
3836                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3837                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3838                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3839                         } else {
3840                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3841                                 return (EINVAL);
3842                         }
3843                         break;
3844                 case SCTP_NODELAY:
3845                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3846                         break;
3847                 case SCTP_AUTOCLOSE:
3848                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3849                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3850                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3851                                 return (EINVAL);
3852                         }
3853                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3854                         /*
3855                          * The value is in ticks. Note this does not effect
3856                          * old associations, only new ones.
3857                          */
3858                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3859                         break;
3860                 }
3861                 SCTP_INP_WLOCK(inp);
3862                 if (*mopt != 0) {
3863                         sctp_feature_on(inp, set_opt);
3864                 } else {
3865                         sctp_feature_off(inp, set_opt);
3866                 }
3867                 SCTP_INP_WUNLOCK(inp);
3868                 break;
3869         case SCTP_REUSE_PORT:
3870                 {
3871                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3872                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3873                                 /* Can't set it after we are bound */
3874                                 error = EINVAL;
3875                                 break;
3876                         }
3877                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3878                                 /* Can't do this for a 1-m socket */
3879                                 error = EINVAL;
3880                                 break;
3881                         }
3882                         if (optval)
3883                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3884                         else
3885                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3886                         break;
3887                 }
3888         case SCTP_PARTIAL_DELIVERY_POINT:
3889                 {
3890                         uint32_t *value;
3891
3892                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3893                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3894                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3895                                 error = EINVAL;
3896                                 break;
3897                         }
3898                         inp->partial_delivery_point = *value;
3899                         break;
3900                 }
3901         case SCTP_FRAGMENT_INTERLEAVE:
3902                 /* not yet until we re-write sctp_recvmsg() */
3903                 {
3904                         uint32_t *level;
3905
3906                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3907                         if (*level == SCTP_FRAG_LEVEL_2) {
3908                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3909                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3910                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3911                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3912                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3913                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3914                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3915                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3916
3917                         } else {
3918                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3919                                 error = EINVAL;
3920                         }
3921                         break;
3922                 }
3923         case SCTP_INTERLEAVING_SUPPORTED:
3924                 {
3925                         struct sctp_assoc_value *av;
3926
3927                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3928                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3929
3930                         if (stcb) {
3931                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3932                                 error = EINVAL;
3933                                 SCTP_TCB_UNLOCK(stcb);
3934                         } else {
3935                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3936                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3937                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3938                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3939                                         SCTP_INP_WLOCK(inp);
3940                                         if (av->assoc_value == 0) {
3941                                                 inp->idata_supported = 0;
3942                                         } else {
3943                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3944                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3945                                                         inp->idata_supported = 1;
3946                                                 } else {
3947                                                         /*
3948                                                          * Must have Frag
3949                                                          * interleave and
3950                                                          * stream interleave
3951                                                          * on
3952                                                          */
3953                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3954                                                         error = EINVAL;
3955                                                 }
3956                                         }
3957                                         SCTP_INP_WUNLOCK(inp);
3958                                 } else {
3959                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3960                                         error = EINVAL;
3961                                 }
3962                         }
3963                         break;
3964                 }
3965         case SCTP_CMT_ON_OFF:
3966                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3967                         struct sctp_assoc_value *av;
3968
3969                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3970                         if (av->assoc_value > SCTP_CMT_MAX) {
3971                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3972                                 error = EINVAL;
3973                                 break;
3974                         }
3975                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3976                         if (stcb) {
3977                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3978                                 SCTP_TCB_UNLOCK(stcb);
3979                         } else {
3980                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3981                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3982                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3983                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3984                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3985                                         SCTP_INP_WLOCK(inp);
3986                                         inp->sctp_cmt_on_off = av->assoc_value;
3987                                         SCTP_INP_WUNLOCK(inp);
3988                                 }
3989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3990                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3991                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3992                                         SCTP_INP_RLOCK(inp);
3993                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3994                                                 SCTP_TCB_LOCK(stcb);
3995                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3996                                                 SCTP_TCB_UNLOCK(stcb);
3997                                         }
3998                                         SCTP_INP_RUNLOCK(inp);
3999                                 }
4000                         }
4001                 } else {
4002                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
4003                         error = ENOPROTOOPT;
4004                 }
4005                 break;
4006         case SCTP_PLUGGABLE_CC:
4007                 {
4008                         struct sctp_assoc_value *av;
4009                         struct sctp_nets *net;
4010
4011                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4012                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
4013                             (av->assoc_value != SCTP_CC_HSTCP) &&
4014                             (av->assoc_value != SCTP_CC_HTCP) &&
4015                             (av->assoc_value != SCTP_CC_RTCC)) {
4016                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4017                                 error = EINVAL;
4018                                 break;
4019                         }
4020                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4021                         if (stcb) {
4022                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4023                                 stcb->asoc.congestion_control_module = av->assoc_value;
4024                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4025                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4026                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4027                                         }
4028                                 }
4029                                 SCTP_TCB_UNLOCK(stcb);
4030                         } else {
4031                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4032                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4033                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4034                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4035                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4036                                         SCTP_INP_WLOCK(inp);
4037                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4038                                         SCTP_INP_WUNLOCK(inp);
4039                                 }
4040                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4041                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4042                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4043                                         SCTP_INP_RLOCK(inp);
4044                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4045                                                 SCTP_TCB_LOCK(stcb);
4046                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4047                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4048                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4049                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4050                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4051                                                         }
4052                                                 }
4053                                                 SCTP_TCB_UNLOCK(stcb);
4054                                         }
4055                                         SCTP_INP_RUNLOCK(inp);
4056                                 }
4057                         }
4058                         break;
4059                 }
4060         case SCTP_CC_OPTION:
4061                 {
4062                         struct sctp_cc_option *cc_opt;
4063
4064                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4065                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4066                         if (stcb == NULL) {
4067                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4068                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4069                                         SCTP_INP_RLOCK(inp);
4070                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4071                                                 SCTP_TCB_LOCK(stcb);
4072                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4073                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4074                                                 }
4075                                                 SCTP_TCB_UNLOCK(stcb);
4076                                         }
4077                                         SCTP_INP_RUNLOCK(inp);
4078                                 } else {
4079                                         error = EINVAL;
4080                                 }
4081                         } else {
4082                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4083                                         error = ENOTSUP;
4084                                 } else {
4085                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4086                                             cc_opt);
4087                                 }
4088                                 SCTP_TCB_UNLOCK(stcb);
4089                         }
4090                         break;
4091                 }
4092         case SCTP_PLUGGABLE_SS:
4093                 {
4094                         struct sctp_assoc_value *av;
4095
4096                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4097                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4098                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4099                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4100                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4101                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4102                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4103                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4104                                 error = EINVAL;
4105                                 break;
4106                         }
4107                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4108                         if (stcb) {
4109                                 SCTP_TCB_SEND_LOCK(stcb);
4110                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4111                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4112                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4113                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4114                                 SCTP_TCB_SEND_UNLOCK(stcb);
4115                                 SCTP_TCB_UNLOCK(stcb);
4116                         } else {
4117                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4118                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4119                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4120                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4121                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4122                                         SCTP_INP_WLOCK(inp);
4123                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4124                                         SCTP_INP_WUNLOCK(inp);
4125                                 }
4126                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4127                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4128                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4129                                         SCTP_INP_RLOCK(inp);
4130                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4131                                                 SCTP_TCB_LOCK(stcb);
4132                                                 SCTP_TCB_SEND_LOCK(stcb);
4133                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4134                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4135                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4136                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4137                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4138                                                 SCTP_TCB_UNLOCK(stcb);
4139                                         }
4140                                         SCTP_INP_RUNLOCK(inp);
4141                                 }
4142                         }
4143                         break;
4144                 }
4145         case SCTP_SS_VALUE:
4146                 {
4147                         struct sctp_stream_value *av;
4148
4149                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4150                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4151                         if (stcb) {
4152                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4153                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4154                                     av->stream_value) < 0)) {
4155                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4156                                         error = EINVAL;
4157                                 }
4158                                 SCTP_TCB_UNLOCK(stcb);
4159                         } else {
4160                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4161                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4162                                         SCTP_INP_RLOCK(inp);
4163                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4164                                                 SCTP_TCB_LOCK(stcb);
4165                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4166                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4167                                                             &stcb->asoc,
4168                                                             &stcb->asoc.strmout[av->stream_id],
4169                                                             av->stream_value);
4170                                                 }
4171                                                 SCTP_TCB_UNLOCK(stcb);
4172                                         }
4173                                         SCTP_INP_RUNLOCK(inp);
4174                                 } else {
4175                                         /*
4176                                          * Can't set stream value without
4177                                          * association
4178                                          */
4179                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4180                                         error = EINVAL;
4181                                 }
4182                         }
4183                         break;
4184                 }
4185         case SCTP_CLR_STAT_LOG:
4186                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4187                 error = EOPNOTSUPP;
4188                 break;
4189         case SCTP_CONTEXT:
4190                 {
4191                         struct sctp_assoc_value *av;
4192
4193                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4194                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4195
4196                         if (stcb) {
4197                                 stcb->asoc.context = av->assoc_value;
4198                                 SCTP_TCB_UNLOCK(stcb);
4199                         } else {
4200                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4201                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4202                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4203                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4204                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4205                                         SCTP_INP_WLOCK(inp);
4206                                         inp->sctp_context = av->assoc_value;
4207                                         SCTP_INP_WUNLOCK(inp);
4208                                 }
4209                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4210                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4211                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4212                                         SCTP_INP_RLOCK(inp);
4213                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4214                                                 SCTP_TCB_LOCK(stcb);
4215                                                 stcb->asoc.context = av->assoc_value;
4216                                                 SCTP_TCB_UNLOCK(stcb);
4217                                         }
4218                                         SCTP_INP_RUNLOCK(inp);
4219                                 }
4220                         }
4221                         break;
4222                 }
4223         case SCTP_VRF_ID:
4224                 {
4225                         uint32_t *default_vrfid;
4226
4227                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4228                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4229                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4230                                 error = EINVAL;
4231                                 break;
4232                         }
4233                         inp->def_vrf_id = *default_vrfid;
4234                         break;
4235                 }
4236         case SCTP_DEL_VRF_ID:
4237                 {
4238                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4239                         error = EOPNOTSUPP;
4240                         break;
4241                 }
4242         case SCTP_ADD_VRF_ID:
4243                 {
4244                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4245                         error = EOPNOTSUPP;
4246                         break;
4247                 }
4248         case SCTP_DELAYED_SACK:
4249                 {
4250                         struct sctp_sack_info *sack;
4251
4252                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4253                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4254                         if (sack->sack_delay) {
4255                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4256                                         error = EINVAL;
4257                                         if (stcb != NULL) {
4258                                                 SCTP_TCB_UNLOCK(stcb);
4259                                         }
4260                                         break;
4261                                 }
4262                         }
4263                         if (stcb) {
4264                                 if (sack->sack_delay) {
4265                                         stcb->asoc.delayed_ack = sack->sack_delay;
4266                                 }
4267                                 if (sack->sack_freq) {
4268                                         stcb->asoc.sack_freq = sack->sack_freq;
4269                                 }
4270                                 SCTP_TCB_UNLOCK(stcb);
4271                         } else {
4272                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4273                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4274                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4275                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4276                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4277                                         SCTP_INP_WLOCK(inp);
4278                                         if (sack->sack_delay) {
4279                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4280                                         }
4281                                         if (sack->sack_freq) {
4282                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4283                                         }
4284                                         SCTP_INP_WUNLOCK(inp);
4285                                 }
4286                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4287                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4288                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4289                                         SCTP_INP_RLOCK(inp);
4290                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4291                                                 SCTP_TCB_LOCK(stcb);
4292                                                 if (sack->sack_delay) {
4293                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4294                                                 }
4295                                                 if (sack->sack_freq) {
4296                                                         stcb->asoc.sack_freq = sack->sack_freq;
4297                                                 }
4298                                                 SCTP_TCB_UNLOCK(stcb);
4299                                         }
4300                                         SCTP_INP_RUNLOCK(inp);
4301                                 }
4302                         }
4303                         break;
4304                 }
4305         case SCTP_AUTH_CHUNK:
4306                 {
4307                         struct sctp_authchunk *sauth;
4308
4309                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4310
4311                         SCTP_INP_WLOCK(inp);
4312                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4313                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4314                                 error = EINVAL;
4315                         } else {
4316                                 inp->auth_supported = 1;
4317                         }
4318                         SCTP_INP_WUNLOCK(inp);
4319                         break;
4320                 }
4321         case SCTP_AUTH_KEY:
4322                 {
4323                         struct sctp_authkey *sca;
4324                         struct sctp_keyhead *shared_keys;
4325                         sctp_sharedkey_t *shared_key;
4326                         sctp_key_t *key = NULL;
4327                         size_t size;
4328
4329                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4330                         if (sca->sca_keylength == 0) {
4331                                 size = optsize - sizeof(struct sctp_authkey);
4332                         } else {
4333                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4334                                         size = sca->sca_keylength;
4335                                 } else {
4336                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4337                                         error = EINVAL;
4338                                         break;
4339                                 }
4340                         }
4341                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4342
4343                         if (stcb) {
4344                                 shared_keys = &stcb->asoc.shared_keys;
4345                                 /* clear the cached keys for this key id */
4346                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4347                                 /*
4348                                  * create the new shared key and
4349                                  * insert/replace it
4350                                  */
4351                                 if (size > 0) {
4352                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4353                                         if (key == NULL) {
4354                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4355                                                 error = ENOMEM;
4356                                                 SCTP_TCB_UNLOCK(stcb);
4357                                                 break;
4358                                         }
4359                                 }
4360                                 shared_key = sctp_alloc_sharedkey();
4361                                 if (shared_key == NULL) {
4362                                         sctp_free_key(key);
4363                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4364                                         error = ENOMEM;
4365                                         SCTP_TCB_UNLOCK(stcb);
4366                                         break;
4367                                 }
4368                                 shared_key->key = key;
4369                                 shared_key->keyid = sca->sca_keynumber;
4370                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4371                                 SCTP_TCB_UNLOCK(stcb);
4372                         } else {
4373                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4374                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4375                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4376                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4377                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4378                                         SCTP_INP_WLOCK(inp);
4379                                         shared_keys = &inp->sctp_ep.shared_keys;
4380                                         /*
4381                                          * clear the cached keys on all
4382                                          * assocs for this key id
4383                                          */
4384                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4385                                         /*
4386                                          * create the new shared key and
4387                                          * insert/replace it
4388                                          */
4389                                         if (size > 0) {
4390                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4391                                                 if (key == NULL) {
4392                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4393                                                         error = ENOMEM;
4394                                                         SCTP_INP_WUNLOCK(inp);
4395                                                         break;
4396                                                 }
4397                                         }
4398                                         shared_key = sctp_alloc_sharedkey();
4399                                         if (shared_key == NULL) {
4400                                                 sctp_free_key(key);
4401                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4402                                                 error = ENOMEM;
4403                                                 SCTP_INP_WUNLOCK(inp);
4404                                                 break;
4405                                         }
4406                                         shared_key->key = key;
4407                                         shared_key->keyid = sca->sca_keynumber;
4408                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4409                                         SCTP_INP_WUNLOCK(inp);
4410                                 }
4411                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4412                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4413                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4414                                         SCTP_INP_RLOCK(inp);
4415                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4416                                                 SCTP_TCB_LOCK(stcb);
4417                                                 shared_keys = &stcb->asoc.shared_keys;
4418                                                 /*
4419                                                  * clear the cached keys for
4420                                                  * this key id
4421                                                  */
4422                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4423                                                 /*
4424                                                  * create the new shared key
4425                                                  * and insert/replace it
4426                                                  */
4427                                                 if (size > 0) {
4428                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4429                                                         if (key == NULL) {
4430                                                                 SCTP_TCB_UNLOCK(stcb);
4431                                                                 continue;
4432                                                         }
4433                                                 }
4434                                                 shared_key = sctp_alloc_sharedkey();
4435                                                 if (shared_key == NULL) {
4436                                                         sctp_free_key(key);
4437                                                         SCTP_TCB_UNLOCK(stcb);
4438                                                         continue;
4439                                                 }
4440                                                 shared_key->key = key;
4441                                                 shared_key->keyid = sca->sca_keynumber;
4442                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4443                                                 SCTP_TCB_UNLOCK(stcb);
4444                                         }
4445                                         SCTP_INP_RUNLOCK(inp);
4446                                 }
4447                         }
4448                         break;
4449                 }
4450         case SCTP_HMAC_IDENT:
4451                 {
4452                         struct sctp_hmacalgo *shmac;
4453                         sctp_hmaclist_t *hmaclist;
4454                         uint16_t hmacid;
4455                         uint32_t i;
4456
4457                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4458                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4459                             (shmac->shmac_number_of_idents > 0xffff)) {
4460                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4461                                 error = EINVAL;
4462                                 break;
4463                         }
4464
4465                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4466                         if (hmaclist == NULL) {
4467                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4468                                 error = ENOMEM;
4469                                 break;
4470                         }
4471                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4472                                 hmacid = shmac->shmac_idents[i];
4473                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4474                                          /* invalid HMACs were found */ ;
4475                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4476                                         error = EINVAL;
4477                                         sctp_free_hmaclist(hmaclist);
4478                                         goto sctp_set_hmac_done;
4479                                 }
4480                         }
4481                         for (i = 0; i < hmaclist->num_algo; i++) {
4482                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4483                                         /* already in list */
4484                                         break;
4485                                 }
4486                         }
4487                         if (i == hmaclist->num_algo) {
4488                                 /* not found in list */
4489                                 sctp_free_hmaclist(hmaclist);
4490                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4491                                 error = EINVAL;
4492                                 break;
4493                         }
4494                         /* set it on the endpoint */
4495                         SCTP_INP_WLOCK(inp);
4496                         if (inp->sctp_ep.local_hmacs)
4497                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4498                         inp->sctp_ep.local_hmacs = hmaclist;
4499                         SCTP_INP_WUNLOCK(inp);
4500         sctp_set_hmac_done:
4501                         break;
4502                 }
4503         case SCTP_AUTH_ACTIVE_KEY:
4504                 {
4505                         struct sctp_authkeyid *scact;
4506
4507                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4508                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4509
4510                         /* set the active key on the right place */
4511                         if (stcb) {
4512                                 /* set the active key on the assoc */
4513                                 if (sctp_auth_setactivekey(stcb,
4514                                     scact->scact_keynumber)) {
4515                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4516                                             SCTP_FROM_SCTP_USRREQ,
4517                                             EINVAL);
4518                                         error = EINVAL;
4519                                 }
4520                                 SCTP_TCB_UNLOCK(stcb);
4521                         } else {
4522                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4523                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4524                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4525                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4526                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4527                                         SCTP_INP_WLOCK(inp);
4528                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4529                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4530                                                 error = EINVAL;
4531                                         }
4532                                         SCTP_INP_WUNLOCK(inp);
4533                                 }
4534                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4535                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4536                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4537                                         SCTP_INP_RLOCK(inp);
4538                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4539                                                 SCTP_TCB_LOCK(stcb);
4540                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4541                                                 SCTP_TCB_UNLOCK(stcb);
4542                                         }
4543                                         SCTP_INP_RUNLOCK(inp);
4544                                 }
4545                         }
4546                         break;
4547                 }
4548         case SCTP_AUTH_DELETE_KEY:
4549                 {
4550                         struct sctp_authkeyid *scdel;
4551
4552                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4553                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4554
4555                         /* delete the key from the right place */
4556                         if (stcb) {
4557                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4558                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4559                                         error = EINVAL;
4560                                 }
4561                                 SCTP_TCB_UNLOCK(stcb);
4562                         } else {
4563                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4564                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4565                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4566                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4567                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4568                                         SCTP_INP_WLOCK(inp);
4569                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4570                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4571                                                 error = EINVAL;
4572                                         }
4573                                         SCTP_INP_WUNLOCK(inp);
4574                                 }
4575                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4576                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4577                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4578                                         SCTP_INP_RLOCK(inp);
4579                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4580                                                 SCTP_TCB_LOCK(stcb);
4581                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4582                                                 SCTP_TCB_UNLOCK(stcb);
4583                                         }
4584                                         SCTP_INP_RUNLOCK(inp);
4585                                 }
4586                         }
4587                         break;
4588                 }
4589         case SCTP_AUTH_DEACTIVATE_KEY:
4590                 {
4591                         struct sctp_authkeyid *keyid;
4592
4593                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4594                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4595
4596                         /* deactivate the key from the right place */
4597                         if (stcb) {
4598                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4599                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4600                                         error = EINVAL;
4601                                 }
4602                                 SCTP_TCB_UNLOCK(stcb);
4603                         } else {
4604                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4605                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4606                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4607                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4608                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4609                                         SCTP_INP_WLOCK(inp);
4610                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4611                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4612                                                 error = EINVAL;
4613                                         }
4614                                         SCTP_INP_WUNLOCK(inp);
4615                                 }
4616                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4617                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4618                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4619                                         SCTP_INP_RLOCK(inp);
4620                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4621                                                 SCTP_TCB_LOCK(stcb);
4622                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4623                                                 SCTP_TCB_UNLOCK(stcb);
4624                                         }
4625                                         SCTP_INP_RUNLOCK(inp);
4626                                 }
4627                         }
4628                         break;
4629                 }
4630         case SCTP_ENABLE_STREAM_RESET:
4631                 {
4632                         struct sctp_assoc_value *av;
4633
4634                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4635                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4637                                 error = EINVAL;
4638                                 break;
4639                         }
4640                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4641                         if (stcb) {
4642                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4643                                 SCTP_TCB_UNLOCK(stcb);
4644                         } else {
4645                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4646                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4647                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4648                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4649                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4650                                         SCTP_INP_WLOCK(inp);
4651                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4652                                         SCTP_INP_WUNLOCK(inp);
4653                                 }
4654                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4655                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4656                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4657                                         SCTP_INP_RLOCK(inp);
4658                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4659                                                 SCTP_TCB_LOCK(stcb);
4660                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4661                                                 SCTP_TCB_UNLOCK(stcb);
4662                                         }
4663                                         SCTP_INP_RUNLOCK(inp);
4664                                 }
4665
4666                         }
4667                         break;
4668                 }
4669         case SCTP_RESET_STREAMS:
4670                 {
4671                         struct sctp_reset_streams *strrst;
4672                         int i, send_out = 0;
4673                         int send_in = 0;
4674
4675                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4676                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4677                         if (stcb == NULL) {
4678                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4679                                 error = ENOENT;
4680                                 break;
4681                         }
4682                         if (stcb->asoc.reconfig_supported == 0) {
4683                                 /*
4684                                  * Peer does not support the chunk type.
4685                                  */
4686                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4687                                 error = EOPNOTSUPP;
4688                                 SCTP_TCB_UNLOCK(stcb);
4689                                 break;
4690                         }
4691                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4693                                 error = EINVAL;
4694                                 SCTP_TCB_UNLOCK(stcb);
4695                                 break;
4696                         }
4697                         if (sizeof(struct sctp_reset_streams) +
4698                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4699                                 error = EINVAL;
4700                                 SCTP_TCB_UNLOCK(stcb);
4701                                 break;
4702                         }
4703                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4704                                 send_in = 1;
4705                                 if (stcb->asoc.stream_reset_outstanding) {
4706                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4707                                         error = EALREADY;
4708                                         SCTP_TCB_UNLOCK(stcb);
4709                                         break;
4710                                 }
4711                         }
4712                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4713                                 send_out = 1;
4714                         }
4715                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4716                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4717                                 error = ENOMEM;
4718                                 SCTP_TCB_UNLOCK(stcb);
4719                                 break;
4720                         }
4721                         if ((send_in == 0) && (send_out == 0)) {
4722                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4723                                 error = EINVAL;
4724                                 SCTP_TCB_UNLOCK(stcb);
4725                                 break;
4726                         }
4727                         for (i = 0; i < strrst->srs_number_streams; i++) {
4728                                 if ((send_in) &&
4729                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4730                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4731                                         error = EINVAL;
4732                                         break;
4733                                 }
4734                                 if ((send_out) &&
4735                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4736                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4737                                         error = EINVAL;
4738                                         break;
4739                                 }
4740                         }
4741                         if (error) {
4742                                 SCTP_TCB_UNLOCK(stcb);
4743                                 break;
4744                         }
4745                         if (send_out) {
4746                                 int cnt;
4747                                 uint16_t strm;
4748
4749                                 if (strrst->srs_number_streams) {
4750                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4751                                                 strm = strrst->srs_stream_list[i];
4752                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4753                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4754                                                         cnt++;
4755                                                 }
4756                                         }
4757                                 } else {
4758                                         /* Its all */
4759                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4760                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4761                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4762                                                         cnt++;
4763                                                 }
4764                                         }
4765                                 }
4766                         }
4767                         if (send_in) {
4768                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4769                                     strrst->srs_stream_list,
4770                                     send_in, 0, 0, 0, 0, 0);
4771                         } else {
4772                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4773                         }
4774                         if (error == 0) {
4775                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4776                         } else {
4777                                 /*
4778                                  * For outgoing streams don't report any
4779                                  * problems in sending the request to the
4780                                  * application. XXX: Double check resetting
4781                                  * incoming streams.
4782                                  */
4783                                 error = 0;
4784                         }
4785                         SCTP_TCB_UNLOCK(stcb);
4786                         break;
4787                 }
4788         case SCTP_ADD_STREAMS:
4789                 {
4790                         struct sctp_add_streams *stradd;
4791                         uint8_t addstream = 0;
4792                         uint16_t add_o_strmcnt = 0;
4793                         uint16_t add_i_strmcnt = 0;
4794
4795                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4796                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4797                         if (stcb == NULL) {
4798                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4799                                 error = ENOENT;
4800                                 break;
4801                         }
4802                         if (stcb->asoc.reconfig_supported == 0) {
4803                                 /*
4804                                  * Peer does not support the chunk type.
4805                                  */
4806                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4807                                 error = EOPNOTSUPP;
4808                                 SCTP_TCB_UNLOCK(stcb);
4809                                 break;
4810                         }
4811                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4812                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4813                                 error = EINVAL;
4814                                 SCTP_TCB_UNLOCK(stcb);
4815                                 break;
4816                         }
4817                         if (stcb->asoc.stream_reset_outstanding) {
4818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4819                                 error = EALREADY;
4820                                 SCTP_TCB_UNLOCK(stcb);
4821                                 break;
4822                         }
4823                         if ((stradd->sas_outstrms == 0) &&
4824                             (stradd->sas_instrms == 0)) {
4825                                 error = EINVAL;
4826                                 goto skip_stuff;
4827                         }
4828                         if (stradd->sas_outstrms) {
4829                                 addstream = 1;
4830                                 /* We allocate here */
4831                                 add_o_strmcnt = stradd->sas_outstrms;
4832                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4833                                         /* You can't have more than 64k */
4834                                         error = EINVAL;
4835                                         goto skip_stuff;
4836                                 }
4837                         }
4838                         if (stradd->sas_instrms) {
4839                                 int cnt;
4840
4841                                 addstream |= 2;
4842                                 /*
4843                                  * We allocate inside
4844                                  * sctp_send_str_reset_req()
4845                                  */
4846                                 add_i_strmcnt = stradd->sas_instrms;
4847                                 cnt = add_i_strmcnt;
4848                                 cnt += stcb->asoc.streamincnt;
4849                                 if (cnt > 0x0000ffff) {
4850                                         /* You can't have more than 64k */
4851                                         error = EINVAL;
4852                                         goto skip_stuff;
4853                                 }
4854                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4855                                         /* More than you are allowed */
4856                                         error = EINVAL;
4857                                         goto skip_stuff;
4858                                 }
4859                         }
4860                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4861                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4862         skip_stuff:
4863                         SCTP_TCB_UNLOCK(stcb);
4864                         break;
4865                 }
4866         case SCTP_RESET_ASSOC:
4867                 {
4868                         int i;
4869                         uint32_t *value;
4870
4871                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4872                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4873                         if (stcb == NULL) {
4874                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4875                                 error = ENOENT;
4876                                 break;
4877                         }
4878                         if (stcb->asoc.reconfig_supported == 0) {
4879                                 /*
4880                                  * Peer does not support the chunk type.
4881                                  */
4882                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4883                                 error = EOPNOTSUPP;
4884                                 SCTP_TCB_UNLOCK(stcb);
4885                                 break;
4886                         }
4887                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4888                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4889                                 error = EINVAL;
4890                                 SCTP_TCB_UNLOCK(stcb);
4891                                 break;
4892                         }
4893                         if (stcb->asoc.stream_reset_outstanding) {
4894                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4895                                 error = EALREADY;
4896                                 SCTP_TCB_UNLOCK(stcb);
4897                                 break;
4898                         }
4899                         /*
4900                          * Is there any data pending in the send or sent
4901                          * queues?
4902                          */
4903                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4904                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4905                 busy_out:
4906                                 error = EBUSY;
4907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4908                                 SCTP_TCB_UNLOCK(stcb);
4909                                 break;
4910                         }
4911                         /* Do any streams have data queued? */
4912                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4913                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4914                                         goto busy_out;
4915                                 }
4916                         }
4917                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4918                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4919                         SCTP_TCB_UNLOCK(stcb);
4920                         break;
4921                 }
4922         case SCTP_CONNECT_X:
4923                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4924                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4925                         error = EINVAL;
4926                         break;
4927                 }
4928                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4929                 break;
4930         case SCTP_CONNECT_X_DELAYED:
4931                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4932                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4933                         error = EINVAL;
4934                         break;
4935                 }
4936                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4937                 break;
4938         case SCTP_CONNECT_X_COMPLETE:
4939                 {
4940                         struct sockaddr *sa;
4941
4942                         /* FIXME MT: check correct? */
4943                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4944
4945                         /* find tcb */
4946                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4947                                 SCTP_INP_RLOCK(inp);
4948                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4949                                 if (stcb) {
4950                                         SCTP_TCB_LOCK(stcb);
4951                                 }
4952                                 SCTP_INP_RUNLOCK(inp);
4953                         } else {
4954                                 /*
4955                                  * We increment here since
4956                                  * sctp_findassociation_ep_addr() wil do a
4957                                  * decrement if it finds the stcb as long as
4958                                  * the locked tcb (last argument) is NOT a
4959                                  * TCB.. aka NULL.
4960                                  */
4961                                 SCTP_INP_INCR_REF(inp);
4962                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4963                                 if (stcb == NULL) {
4964                                         SCTP_INP_DECR_REF(inp);
4965                                 }
4966                         }
4967
4968                         if (stcb == NULL) {
4969                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4970                                 error = ENOENT;
4971                                 break;
4972                         }
4973                         if (stcb->asoc.delayed_connection == 1) {
4974                                 stcb->asoc.delayed_connection = 0;
4975                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4976                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4977                                     stcb->asoc.primary_destination,
4978                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4979                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4980                         } else {
4981                                 /*
4982                                  * already expired or did not use delayed
4983                                  * connectx
4984                                  */
4985                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4986                                 error = EALREADY;
4987                         }
4988                         SCTP_TCB_UNLOCK(stcb);
4989                         break;
4990                 }
4991         case SCTP_MAX_BURST:
4992                 {
4993                         struct sctp_assoc_value *av;
4994
4995                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4996                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4997
4998                         if (stcb) {
4999                                 stcb->asoc.max_burst = av->assoc_value;
5000                                 SCTP_TCB_UNLOCK(stcb);
5001                         } else {
5002                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5003                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5004                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5005                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
5006                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
5007                                         SCTP_INP_WLOCK(inp);
5008                                         inp->sctp_ep.max_burst = av->assoc_value;
5009                                         SCTP_INP_WUNLOCK(inp);
5010                                 }
5011                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5012                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
5013                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
5014                                         SCTP_INP_RLOCK(inp);
5015                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5016                                                 SCTP_TCB_LOCK(stcb);
5017                                                 stcb->asoc.max_burst = av->assoc_value;
5018                                                 SCTP_TCB_UNLOCK(stcb);
5019                                         }
5020                                         SCTP_INP_RUNLOCK(inp);
5021                                 }
5022                         }
5023                         break;
5024                 }
5025         case SCTP_MAXSEG:
5026                 {
5027                         struct sctp_assoc_value *av;
5028                         int ovh;
5029
5030                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
5031                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
5032
5033                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5034                                 ovh = SCTP_MED_OVERHEAD;
5035                         } else {
5036                                 ovh = SCTP_MED_V4_OVERHEAD;
5037                         }
5038                         if (stcb) {
5039                                 if (av->assoc_value) {
5040                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
5041                                 } else {
5042                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5043                                 }
5044                                 SCTP_TCB_UNLOCK(stcb);
5045                         } else {
5046                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5047                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5048                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5049                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
5050                                         SCTP_INP_WLOCK(inp);
5051                                         /*
5052                                          * FIXME MT: I think this is not in
5053                                          * tune with the API ID
5054                                          */
5055                                         if (av->assoc_value) {
5056                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
5057                                         } else {
5058                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5059                                         }
5060                                         SCTP_INP_WUNLOCK(inp);
5061                                 } else {
5062                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5063                                         error = EINVAL;
5064                                 }
5065                         }
5066                         break;
5067                 }
5068         case SCTP_EVENTS:
5069                 {
5070                         struct sctp_event_subscribe *events;
5071
5072                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5073
5074                         SCTP_INP_WLOCK(inp);
5075                         if (events->sctp_data_io_event) {
5076                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5077                         } else {
5078                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5079                         }
5080
5081                         if (events->sctp_association_event) {
5082                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5083                         } else {
5084                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5085                         }
5086
5087                         if (events->sctp_address_event) {
5088                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5089                         } else {
5090                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5091                         }
5092
5093                         if (events->sctp_send_failure_event) {
5094                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5095                         } else {
5096                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5097                         }
5098
5099                         if (events->sctp_peer_error_event) {
5100                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5101                         } else {
5102                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5103                         }
5104
5105                         if (events->sctp_shutdown_event) {
5106                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5107                         } else {
5108                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5109                         }
5110
5111                         if (events->sctp_partial_delivery_event) {
5112                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5113                         } else {
5114                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5115                         }
5116
5117                         if (events->sctp_adaptation_layer_event) {
5118                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5119                         } else {
5120                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5121                         }
5122
5123                         if (events->sctp_authentication_event) {
5124                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5125                         } else {
5126                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5127                         }
5128
5129                         if (events->sctp_sender_dry_event) {
5130                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5131                         } else {
5132                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5133                         }
5134
5135                         if (events->sctp_stream_reset_event) {
5136                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5137                         } else {
5138                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5139                         }
5140                         SCTP_INP_WUNLOCK(inp);
5141
5142                         SCTP_INP_RLOCK(inp);
5143                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5144                                 SCTP_TCB_LOCK(stcb);
5145                                 if (events->sctp_association_event) {
5146                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5147                                 } else {
5148                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5149                                 }
5150                                 if (events->sctp_address_event) {
5151                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5152                                 } else {
5153                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5154                                 }
5155                                 if (events->sctp_send_failure_event) {
5156                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5157                                 } else {
5158                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5159                                 }
5160                                 if (events->sctp_peer_error_event) {
5161                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5162                                 } else {
5163                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5164                                 }
5165                                 if (events->sctp_shutdown_event) {
5166                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5167                                 } else {
5168                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5169                                 }
5170                                 if (events->sctp_partial_delivery_event) {
5171                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5172                                 } else {
5173                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5174                                 }
5175                                 if (events->sctp_adaptation_layer_event) {
5176                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5177                                 } else {
5178                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5179                                 }
5180                                 if (events->sctp_authentication_event) {
5181                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5182                                 } else {
5183                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5184                                 }
5185                                 if (events->sctp_sender_dry_event) {
5186                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5187                                 } else {
5188                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5189                                 }
5190                                 if (events->sctp_stream_reset_event) {
5191                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5192                                 } else {
5193                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5194                                 }
5195                                 SCTP_TCB_UNLOCK(stcb);
5196                         }
5197                         /*
5198                          * Send up the sender dry event only for 1-to-1
5199                          * style sockets.
5200                          */
5201                         if (events->sctp_sender_dry_event) {
5202                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5203                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5204                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5205                                         if (stcb) {
5206                                                 SCTP_TCB_LOCK(stcb);
5207                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5208                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5209                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5210                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5211                                                 }
5212                                                 SCTP_TCB_UNLOCK(stcb);
5213                                         }
5214                                 }
5215                         }
5216                         SCTP_INP_RUNLOCK(inp);
5217                         break;
5218                 }
5219         case SCTP_ADAPTATION_LAYER:
5220                 {
5221                         struct sctp_setadaptation *adap_bits;
5222
5223                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5224                         SCTP_INP_WLOCK(inp);
5225                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5226                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5227                         SCTP_INP_WUNLOCK(inp);
5228                         break;
5229                 }
5230 #ifdef SCTP_DEBUG
5231         case SCTP_SET_INITIAL_DBG_SEQ:
5232                 {
5233                         uint32_t *vvv;
5234
5235                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5236                         SCTP_INP_WLOCK(inp);
5237                         inp->sctp_ep.initial_sequence_debug = *vvv;
5238                         SCTP_INP_WUNLOCK(inp);
5239                         break;
5240                 }
5241 #endif
5242         case SCTP_DEFAULT_SEND_PARAM:
5243                 {
5244                         struct sctp_sndrcvinfo *s_info;
5245
5246                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5247                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5248
5249                         if (stcb) {
5250                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5251                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5252                                 } else {
5253                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5254                                         error = EINVAL;
5255                                 }
5256                                 SCTP_TCB_UNLOCK(stcb);
5257                         } else {
5258                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5259                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5260                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5261                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5262                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5263                                         SCTP_INP_WLOCK(inp);
5264                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5265                                         SCTP_INP_WUNLOCK(inp);
5266                                 }
5267                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5268                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5269                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5270                                         SCTP_INP_RLOCK(inp);
5271                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5272                                                 SCTP_TCB_LOCK(stcb);
5273                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5274                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5275                                                 }
5276                                                 SCTP_TCB_UNLOCK(stcb);
5277                                         }
5278                                         SCTP_INP_RUNLOCK(inp);
5279                                 }
5280                         }
5281                         break;
5282                 }
5283         case SCTP_PEER_ADDR_PARAMS:
5284                 {
5285                         struct sctp_paddrparams *paddrp;
5286                         struct sctp_nets *net;
5287                         struct sockaddr *addr;
5288 #if defined(INET) && defined(INET6)
5289                         struct sockaddr_in sin_store;
5290 #endif
5291
5292                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5293                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5294
5295 #if defined(INET) && defined(INET6)
5296                         if (paddrp->spp_address.ss_family == AF_INET6) {
5297                                 struct sockaddr_in6 *sin6;
5298
5299                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5300                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5301                                         in6_sin6_2_sin(&sin_store, sin6);
5302                                         addr = (struct sockaddr *)&sin_store;
5303                                 } else {
5304                                         addr = (struct sockaddr *)&paddrp->spp_address;
5305                                 }
5306                         } else {
5307                                 addr = (struct sockaddr *)&paddrp->spp_address;
5308                         }
5309 #else
5310                         addr = (struct sockaddr *)&paddrp->spp_address;
5311 #endif
5312                         if (stcb != NULL) {
5313                                 net = sctp_findnet(stcb, addr);
5314                         } else {
5315                                 /*
5316                                  * We increment here since
5317                                  * sctp_findassociation_ep_addr() wil do a
5318                                  * decrement if it finds the stcb as long as
5319                                  * the locked tcb (last argument) is NOT a
5320                                  * TCB.. aka NULL.
5321                                  */
5322                                 net = NULL;
5323                                 SCTP_INP_INCR_REF(inp);
5324                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5325                                     &net, NULL, NULL);
5326                                 if (stcb == NULL) {
5327                                         SCTP_INP_DECR_REF(inp);
5328                                 }
5329                         }
5330                         if ((stcb != NULL) && (net == NULL)) {
5331 #ifdef INET
5332                                 if (addr->sa_family == AF_INET) {
5333
5334                                         struct sockaddr_in *sin;
5335
5336                                         sin = (struct sockaddr_in *)addr;
5337                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
5346                                 if (addr->sa_family == AF_INET6) {
5347                                         struct sockaddr_in6 *sin6;
5348
5349                                         sin6 = (struct sockaddr_in6 *)addr;
5350                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5351                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5352                                                 SCTP_TCB_UNLOCK(stcb);
5353                                                 error = EINVAL;
5354                                                 break;
5355                                         }
5356                                 } else
5357 #endif
5358                                 {
5359                                         error = EAFNOSUPPORT;
5360                                         SCTP_TCB_UNLOCK(stcb);
5361                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5362                                         break;
5363                                 }
5364                         }
5365                         /* sanity checks */
5366                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5367                                 if (stcb)
5368                                         SCTP_TCB_UNLOCK(stcb);
5369                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5370                                 return (EINVAL);
5371                         }
5372
5373                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5374                                 if (stcb)
5375                                         SCTP_TCB_UNLOCK(stcb);
5376                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5377                                 return (EINVAL);
5378                         }
5379                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5380                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5381                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5382                                 if (stcb)
5383                                         SCTP_TCB_UNLOCK(stcb);
5384                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5385                                 return (EINVAL);
5386                         }
5387
5388                         if (stcb != NULL) {
5389                                 /************************TCB SPECIFIC SET ******************/
5390                                 if (net != NULL) {
5391                                         /************************NET SPECIFIC SET ******************/
5392                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5393                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5394                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5395                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5396                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5397                                                 }
5398                                                 net->dest_state |= SCTP_ADDR_NOHB;
5399                                         }
5400                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5401                                                 if (paddrp->spp_hbinterval) {
5402                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5403                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5404                                                         net->heart_beat_delay = 0;
5405                                                 }
5406                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5407                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5408                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5409                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5410                                         }
5411                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5412                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5413                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5414                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5415                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5416                                                 }
5417                                         }
5418                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5419                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5420                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5421                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5422                                                 }
5423                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5424                                                 net->mtu = paddrp->spp_pathmtu;
5425                                                 switch (net->ro._l_addr.sa.sa_family) {
5426 #ifdef INET
5427                                                 case AF_INET:
5428                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5429                                                         break;
5430 #endif
5431 #ifdef INET6
5432                                                 case AF_INET6:
5433                                                         net->mtu += SCTP_MIN_OVERHEAD;
5434                                                         break;
5435 #endif
5436                                                 default:
5437                                                         break;
5438                                                 }
5439                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5440                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5441                                                 }
5442                                         }
5443                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5444                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5445                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5446                                                 }
5447                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5448                                         }
5449                                         if (paddrp->spp_pathmaxrxt) {
5450                                                 if (net->dest_state & SCTP_ADDR_PF) {
5451                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5452                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5453                                                         }
5454                                                 } else {
5455                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5456                                                             (net->error_count > net->pf_threshold)) {
5457                                                                 net->dest_state |= SCTP_ADDR_PF;
5458                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5459                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5460                                                                     stcb->sctp_ep, stcb, net,
5461                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5462                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5463                                                         }
5464                                                 }
5465                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5466                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5467                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5468                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5469                                                         }
5470                                                 } else {
5471                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5472                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5473                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5474                                                         }
5475                                                 }
5476                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5477                                         }
5478                                         if (paddrp->spp_flags & SPP_DSCP) {
5479                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5480                                                 net->dscp |= 0x01;
5481                                         }
5482 #ifdef INET6
5483                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5484                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5485                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5486                                                         net->flowlabel |= 0x80000000;
5487                                                 }
5488                                         }
5489 #endif
5490                                 } else {
5491                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5492                                         if (paddrp->spp_pathmaxrxt != 0) {
5493                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5494                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5495                                                         if (net->dest_state & SCTP_ADDR_PF) {
5496                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5497                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5498                                                                 }
5499                                                         } else {
5500                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5501                                                                     (net->error_count > net->pf_threshold)) {
5502                                                                         net->dest_state |= SCTP_ADDR_PF;
5503                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5504                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5505                                                                             stcb->sctp_ep, stcb, net,
5506                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5507                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5508                                                                 }
5509                                                         }
5510                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5511                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5512                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5513                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5514                                                                 }
5515                                                         } else {
5516                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5517                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5518                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5519                                                                 }
5520                                                         }
5521                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5522                                                 }
5523                                         }
5524
5525                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5526                                                 if (paddrp->spp_hbinterval != 0) {
5527                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5528                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5529                                                         stcb->asoc.heart_beat_delay = 0;
5530                                                 }
5531                                                 /* Turn back on the timer */
5532                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5533                                                         if (paddrp->spp_hbinterval != 0) {
5534                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5535                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5536                                                                 net->heart_beat_delay = 0;
5537                                                         }
5538                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5539                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5540                                                         }
5541                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5542                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5543                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5544                                                 }
5545                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5546                                         }
5547                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5548                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5549                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5550                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5551                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5552                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5553                                                                             inp, stcb, net,
5554                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5555                                                                 }
5556                                                         }
5557                                                 }
5558                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5559                                         }
5560                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5561                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5562                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5563                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5564                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5565                                                         }
5566                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5567                                                         net->mtu = paddrp->spp_pathmtu;
5568                                                         switch (net->ro._l_addr.sa.sa_family) {
5569 #ifdef INET
5570                                                         case AF_INET:
5571                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5572                                                                 break;
5573 #endif
5574 #ifdef INET6
5575                                                         case AF_INET6:
5576                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5577                                                                 break;
5578 #endif
5579                                                         default:
5580                                                                 break;
5581                                                         }
5582                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5583                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5584                                                         }
5585                                                 }
5586                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5587                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5588                                         }
5589                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5590                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5591                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5592                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5593                                                         }
5594                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5595                                                 }
5596                                                 stcb->asoc.default_mtu = 0;
5597                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5598                                         }
5599                                         if (paddrp->spp_flags & SPP_DSCP) {
5600                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5601                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5602                                                         net->dscp |= 0x01;
5603                                                 }
5604                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5605                                                 stcb->asoc.default_dscp |= 0x01;
5606                                         }
5607 #ifdef INET6
5608                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5609                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5610                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5611                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5612                                                                 net->flowlabel |= 0x80000000;
5613                                                         }
5614                                                 }
5615                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5616                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5617                                         }
5618 #endif
5619                                 }
5620                                 SCTP_TCB_UNLOCK(stcb);
5621                         } else {
5622                                 /************************NO TCB, SET TO default stuff ******************/
5623                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5624                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5625                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5626                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5627                                         SCTP_INP_WLOCK(inp);
5628                                         /*
5629                                          * For the TOS/FLOWLABEL stuff you
5630                                          * set it with the options on the
5631                                          * socket
5632                                          */
5633                                         if (paddrp->spp_pathmaxrxt != 0) {
5634                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5635                                         }
5636
5637                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5638                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5639                                         else if (paddrp->spp_hbinterval != 0) {
5640                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5641                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5642                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5643                                         }
5644
5645                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5646                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5647                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5648                                                 } else if (paddrp->spp_hbinterval) {
5649                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5650                                                 }
5651                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5652                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5653                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5654                                         }
5655                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5656                                                 inp->sctp_ep.default_mtu = 0;
5657                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5658                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5659                                                 inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5660                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5661                                         }
5662                                         if (paddrp->spp_flags & SPP_DSCP) {
5663                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5664                                                 inp->sctp_ep.default_dscp |= 0x01;
5665                                         }
5666 #ifdef INET6
5667                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5668                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5669                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5670                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5671                                                 }
5672                                         }
5673 #endif
5674                                         SCTP_INP_WUNLOCK(inp);
5675                                 } else {
5676                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5677                                         error = EINVAL;
5678                                 }
5679                         }
5680                         break;
5681                 }
5682         case SCTP_RTOINFO:
5683                 {
5684                         struct sctp_rtoinfo *srto;
5685                         uint32_t new_init, new_min, new_max;
5686
5687                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5688                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5689
5690                         if (stcb) {
5691                                 if (srto->srto_initial)
5692                                         new_init = srto->srto_initial;
5693                                 else
5694                                         new_init = stcb->asoc.initial_rto;
5695                                 if (srto->srto_max)
5696                                         new_max = srto->srto_max;
5697                                 else
5698                                         new_max = stcb->asoc.maxrto;
5699                                 if (srto->srto_min)
5700                                         new_min = srto->srto_min;
5701                                 else
5702                                         new_min = stcb->asoc.minrto;
5703                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5704                                         stcb->asoc.initial_rto = new_init;
5705                                         stcb->asoc.maxrto = new_max;
5706                                         stcb->asoc.minrto = new_min;
5707                                 } else {
5708                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5709                                         error = EINVAL;
5710                                 }
5711                                 SCTP_TCB_UNLOCK(stcb);
5712                         } else {
5713                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5714                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5715                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5716                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5717                                         SCTP_INP_WLOCK(inp);
5718                                         if (srto->srto_initial)
5719                                                 new_init = srto->srto_initial;
5720                                         else
5721                                                 new_init = inp->sctp_ep.initial_rto;
5722                                         if (srto->srto_max)
5723                                                 new_max = srto->srto_max;
5724                                         else
5725                                                 new_max = inp->sctp_ep.sctp_maxrto;
5726                                         if (srto->srto_min)
5727                                                 new_min = srto->srto_min;
5728                                         else
5729                                                 new_min = inp->sctp_ep.sctp_minrto;
5730                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5731                                                 inp->sctp_ep.initial_rto = new_init;
5732                                                 inp->sctp_ep.sctp_maxrto = new_max;
5733                                                 inp->sctp_ep.sctp_minrto = new_min;
5734                                         } else {
5735                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5736                                                 error = EINVAL;
5737                                         }
5738                                         SCTP_INP_WUNLOCK(inp);
5739                                 } else {
5740                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5741                                         error = EINVAL;
5742                                 }
5743                         }
5744                         break;
5745                 }
5746         case SCTP_ASSOCINFO:
5747                 {
5748                         struct sctp_assocparams *sasoc;
5749
5750                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5751                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5752                         if (sasoc->sasoc_cookie_life) {
5753                                 /* boundary check the cookie life */
5754                                 if (sasoc->sasoc_cookie_life < 1000)
5755                                         sasoc->sasoc_cookie_life = 1000;
5756                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5757                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5758                                 }
5759                         }
5760                         if (stcb) {
5761                                 if (sasoc->sasoc_asocmaxrxt)
5762                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5763                                 if (sasoc->sasoc_cookie_life) {
5764                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5765                                 }
5766                                 SCTP_TCB_UNLOCK(stcb);
5767                         } else {
5768                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5769                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5770                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5771                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5772                                         SCTP_INP_WLOCK(inp);
5773                                         if (sasoc->sasoc_asocmaxrxt)
5774                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5775                                         if (sasoc->sasoc_cookie_life) {
5776                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5777                                         }
5778                                         SCTP_INP_WUNLOCK(inp);
5779                                 } else {
5780                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5781                                         error = EINVAL;
5782                                 }
5783                         }
5784                         break;
5785                 }
5786         case SCTP_INITMSG:
5787                 {
5788                         struct sctp_initmsg *sinit;
5789
5790                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5791                         SCTP_INP_WLOCK(inp);
5792                         if (sinit->sinit_num_ostreams)
5793                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5794
5795                         if (sinit->sinit_max_instreams)
5796                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5797
5798                         if (sinit->sinit_max_attempts)
5799                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5800
5801                         if (sinit->sinit_max_init_timeo)
5802                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5803                         SCTP_INP_WUNLOCK(inp);
5804                         break;
5805                 }
5806         case SCTP_PRIMARY_ADDR:
5807                 {
5808                         struct sctp_setprim *spa;
5809                         struct sctp_nets *net;
5810                         struct sockaddr *addr;
5811 #if defined(INET) && defined(INET6)
5812                         struct sockaddr_in sin_store;
5813 #endif
5814
5815                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5816                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5817
5818 #if defined(INET) && defined(INET6)
5819                         if (spa->ssp_addr.ss_family == AF_INET6) {
5820                                 struct sockaddr_in6 *sin6;
5821
5822                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5823                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5824                                         in6_sin6_2_sin(&sin_store, sin6);
5825                                         addr = (struct sockaddr *)&sin_store;
5826                                 } else {
5827                                         addr = (struct sockaddr *)&spa->ssp_addr;
5828                                 }
5829                         } else {
5830                                 addr = (struct sockaddr *)&spa->ssp_addr;
5831                         }
5832 #else
5833                         addr = (struct sockaddr *)&spa->ssp_addr;
5834 #endif
5835                         if (stcb != NULL) {
5836                                 net = sctp_findnet(stcb, addr);
5837                         } else {
5838                                 /*
5839                                  * We increment here since
5840                                  * sctp_findassociation_ep_addr() wil do a
5841                                  * decrement if it finds the stcb as long as
5842                                  * the locked tcb (last argument) is NOT a
5843                                  * TCB.. aka NULL.
5844                                  */
5845                                 net = NULL;
5846                                 SCTP_INP_INCR_REF(inp);
5847                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5848                                     &net, NULL, NULL);
5849                                 if (stcb == NULL) {
5850                                         SCTP_INP_DECR_REF(inp);
5851                                 }
5852                         }
5853
5854                         if ((stcb != NULL) && (net != NULL)) {
5855                                 if (net != stcb->asoc.primary_destination) {
5856                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5857                                                 /* Ok we need to set it */
5858                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5859                                                         if ((stcb->asoc.alternate) &&
5860                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5861                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5862                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5863                                                                 stcb->asoc.alternate = NULL;
5864                                                         }
5865                                                 } else {
5866                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5867                                                         error = EINVAL;
5868                                                 }
5869                                         } else {
5870                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5871                                                 error = EINVAL;
5872                                         }
5873                                 }
5874                         } else {
5875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5876                                 error = EINVAL;
5877                         }
5878                         if (stcb != NULL) {
5879                                 SCTP_TCB_UNLOCK(stcb);
5880                         }
5881                         break;
5882                 }
5883         case SCTP_SET_DYNAMIC_PRIMARY:
5884                 {
5885                         union sctp_sockstore *ss;
5886
5887                         error = priv_check(curthread,
5888                             PRIV_NETINET_RESERVEDPORT);
5889                         if (error)
5890                                 break;
5891
5892                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5893                         /* SUPER USER CHECK? */
5894                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5895                         break;
5896                 }
5897         case SCTP_SET_PEER_PRIMARY_ADDR:
5898                 {
5899                         struct sctp_setpeerprim *sspp;
5900                         struct sockaddr *addr;
5901 #if defined(INET) && defined(INET6)
5902                         struct sockaddr_in sin_store;
5903 #endif
5904
5905                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5906                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5907                         if (stcb != NULL) {
5908                                 struct sctp_ifa *ifa;
5909
5910 #if defined(INET) && defined(INET6)
5911                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5912                                         struct sockaddr_in6 *sin6;
5913
5914                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5915                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5916                                                 in6_sin6_2_sin(&sin_store, sin6);
5917                                                 addr = (struct sockaddr *)&sin_store;
5918                                         } else {
5919                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5920                                         }
5921                                 } else {
5922                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5923                                 }
5924 #else
5925                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5926 #endif
5927                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5928                                 if (ifa == NULL) {
5929                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5930                                         error = EINVAL;
5931                                         goto out_of_it;
5932                                 }
5933                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5934                                         /*
5935                                          * Must validate the ifa found is in
5936                                          * our ep
5937                                          */
5938                                         struct sctp_laddr *laddr;
5939                                         int found = 0;
5940
5941                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5942                                                 if (laddr->ifa == NULL) {
5943                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5944                                                             __func__);
5945                                                         continue;
5946                                                 }
5947                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5948                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5949                                                         continue;
5950                                                 }
5951                                                 if (laddr->ifa == ifa) {
5952                                                         found = 1;
5953                                                         break;
5954                                                 }
5955                                         }
5956                                         if (!found) {
5957                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5958                                                 error = EINVAL;
5959                                                 goto out_of_it;
5960                                         }
5961                                 } else {
5962                                         switch (addr->sa_family) {
5963 #ifdef INET
5964                                         case AF_INET:
5965                                                 {
5966                                                         struct sockaddr_in *sin;
5967
5968                                                         sin = (struct sockaddr_in *)addr;
5969                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5970                                                             &sin->sin_addr) != 0) {
5971                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5972                                                                 error = EINVAL;
5973                                                                 goto out_of_it;
5974                                                         }
5975                                                         break;
5976                                                 }
5977 #endif
5978 #ifdef INET6
5979                                         case AF_INET6:
5980                                                 {
5981                                                         struct sockaddr_in6 *sin6;
5982
5983                                                         sin6 = (struct sockaddr_in6 *)addr;
5984                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5985                                                             &sin6->sin6_addr) != 0) {
5986                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5987                                                                 error = EINVAL;
5988                                                                 goto out_of_it;
5989                                                         }
5990                                                         break;
5991                                                 }
5992 #endif
5993                                         default:
5994                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5995                                                 error = EINVAL;
5996                                                 goto out_of_it;
5997                                         }
5998                                 }
5999                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
6000                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6001                                         error = EINVAL;
6002                                 }
6003                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
6004                 out_of_it:
6005                                 SCTP_TCB_UNLOCK(stcb);
6006                         } else {
6007                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6008                                 error = EINVAL;
6009                         }
6010                         break;
6011                 }
6012         case SCTP_BINDX_ADD_ADDR:
6013                 {
6014                         struct sctp_getaddresses *addrs;
6015                         struct thread *td;
6016
6017                         td = (struct thread *)p;
6018                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
6019                             optsize);
6020 #ifdef INET
6021                         if (addrs->addr->sa_family == AF_INET) {
6022                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
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_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
6028                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6029                                         break;
6030                                 }
6031                         } else
6032 #endif
6033 #ifdef INET6
6034                         if (addrs->addr->sa_family == AF_INET6) {
6035                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6036                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6037                                         error = EINVAL;
6038                                         break;
6039                                 }
6040                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6041                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6042                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6043                                         break;
6044                                 }
6045                         } else
6046 #endif
6047                         {
6048                                 error = EAFNOSUPPORT;
6049                                 break;
6050                         }
6051                         sctp_bindx_add_address(so, inp, addrs->addr,
6052                             addrs->sget_assoc_id, vrf_id,
6053                             &error, p);
6054                         break;
6055                 }
6056         case SCTP_BINDX_REM_ADDR:
6057                 {
6058                         struct sctp_getaddresses *addrs;
6059                         struct thread *td;
6060
6061                         td = (struct thread *)p;
6062
6063                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
6064 #ifdef INET
6065                         if (addrs->addr->sa_family == AF_INET) {
6066                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
6067                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6068                                         error = EINVAL;
6069                                         break;
6070                                 }
6071                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
6072                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6073                                         break;
6074                                 }
6075                         } else
6076 #endif
6077 #ifdef INET6
6078                         if (addrs->addr->sa_family == AF_INET6) {
6079                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6080                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6081                                         error = EINVAL;
6082                                         break;
6083                                 }
6084                                 if (td != NULL &&
6085                                     (error = prison_local_ip6(td->td_ucred,
6086                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6087                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6088                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6089                                         break;
6090                                 }
6091                         } else
6092 #endif
6093                         {
6094                                 error = EAFNOSUPPORT;
6095                                 break;
6096                         }
6097                         sctp_bindx_delete_address(inp, addrs->addr,
6098                             addrs->sget_assoc_id, vrf_id,
6099                             &error);
6100                         break;
6101                 }
6102         case SCTP_EVENT:
6103                 {
6104                         struct sctp_event *event;
6105                         uint32_t event_type;
6106
6107                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6108                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6109                         switch (event->se_type) {
6110                         case SCTP_ASSOC_CHANGE:
6111                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6112                                 break;
6113                         case SCTP_PEER_ADDR_CHANGE:
6114                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6115                                 break;
6116                         case SCTP_REMOTE_ERROR:
6117                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6118                                 break;
6119                         case SCTP_SEND_FAILED:
6120                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6121                                 break;
6122                         case SCTP_SHUTDOWN_EVENT:
6123                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6124                                 break;
6125                         case SCTP_ADAPTATION_INDICATION:
6126                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6127                                 break;
6128                         case SCTP_PARTIAL_DELIVERY_EVENT:
6129                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6130                                 break;
6131                         case SCTP_AUTHENTICATION_EVENT:
6132                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6133                                 break;
6134                         case SCTP_STREAM_RESET_EVENT:
6135                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6136                                 break;
6137                         case SCTP_SENDER_DRY_EVENT:
6138                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6139                                 break;
6140                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6141                                 event_type = 0;
6142                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6143                                 error = ENOTSUP;
6144                                 break;
6145                         case SCTP_ASSOC_RESET_EVENT:
6146                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6147                                 break;
6148                         case SCTP_STREAM_CHANGE_EVENT:
6149                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6150                                 break;
6151                         case SCTP_SEND_FAILED_EVENT:
6152                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6153                                 break;
6154                         default:
6155                                 event_type = 0;
6156                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6157                                 error = EINVAL;
6158                                 break;
6159                         }
6160                         if (event_type > 0) {
6161                                 if (stcb) {
6162                                         if (event->se_on) {
6163                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6164                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6165                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6166                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6167                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6168                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6169                                                         }
6170                                                 }
6171                                         } else {
6172                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6173                                         }
6174                                         SCTP_TCB_UNLOCK(stcb);
6175                                 } else {
6176                                         /*
6177                                          * We don't want to send up a storm
6178                                          * of events, so return an error for
6179                                          * sender dry events
6180                                          */
6181                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6182                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6183                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6184                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6185                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6186                                                 error = ENOTSUP;
6187                                                 break;
6188                                         }
6189                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6190                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6191                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6192                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6193                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6194                                                 SCTP_INP_WLOCK(inp);
6195                                                 if (event->se_on) {
6196                                                         sctp_feature_on(inp, event_type);
6197                                                 } else {
6198                                                         sctp_feature_off(inp, event_type);
6199                                                 }
6200                                                 SCTP_INP_WUNLOCK(inp);
6201                                         }
6202                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6203                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6204                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6205                                                 SCTP_INP_RLOCK(inp);
6206                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6207                                                         SCTP_TCB_LOCK(stcb);
6208                                                         if (event->se_on) {
6209                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6210                                                         } else {
6211                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6212                                                         }
6213                                                         SCTP_TCB_UNLOCK(stcb);
6214                                                 }
6215                                                 SCTP_INP_RUNLOCK(inp);
6216                                         }
6217                                 }
6218                         } else {
6219                                 if (stcb) {
6220                                         SCTP_TCB_UNLOCK(stcb);
6221                                 }
6222                         }
6223                         break;
6224                 }
6225         case SCTP_RECVRCVINFO:
6226                 {
6227                         int *onoff;
6228
6229                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6230                         SCTP_INP_WLOCK(inp);
6231                         if (*onoff != 0) {
6232                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6233                         } else {
6234                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6235                         }
6236                         SCTP_INP_WUNLOCK(inp);
6237                         break;
6238                 }
6239         case SCTP_RECVNXTINFO:
6240                 {
6241                         int *onoff;
6242
6243                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6244                         SCTP_INP_WLOCK(inp);
6245                         if (*onoff != 0) {
6246                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6247                         } else {
6248                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6249                         }
6250                         SCTP_INP_WUNLOCK(inp);
6251                         break;
6252                 }
6253         case SCTP_DEFAULT_SNDINFO:
6254                 {
6255                         struct sctp_sndinfo *info;
6256                         uint16_t policy;
6257
6258                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6259                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6260
6261                         if (stcb) {
6262                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6263                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6264                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6265                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6266                                         stcb->asoc.def_send.sinfo_flags |= policy;
6267                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6268                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6269                                 } else {
6270                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6271                                         error = EINVAL;
6272                                 }
6273                                 SCTP_TCB_UNLOCK(stcb);
6274                         } else {
6275                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6276                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6277                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6278                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6279                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6280                                         SCTP_INP_WLOCK(inp);
6281                                         inp->def_send.sinfo_stream = info->snd_sid;
6282                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6283                                         inp->def_send.sinfo_flags = info->snd_flags;
6284                                         inp->def_send.sinfo_flags |= policy;
6285                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6286                                         inp->def_send.sinfo_context = info->snd_context;
6287                                         SCTP_INP_WUNLOCK(inp);
6288                                 }
6289                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6290                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6291                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6292                                         SCTP_INP_RLOCK(inp);
6293                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6294                                                 SCTP_TCB_LOCK(stcb);
6295                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6296                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6297                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6298                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6299                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6300                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6301                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6302                                                 }
6303                                                 SCTP_TCB_UNLOCK(stcb);
6304                                         }
6305                                         SCTP_INP_RUNLOCK(inp);
6306                                 }
6307                         }
6308                         break;
6309                 }
6310         case SCTP_DEFAULT_PRINFO:
6311                 {
6312                         struct sctp_default_prinfo *info;
6313
6314                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6315                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6316
6317                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6318                                 if (stcb) {
6319                                         SCTP_TCB_UNLOCK(stcb);
6320                                 }
6321                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6322                                 error = EINVAL;
6323                                 break;
6324                         }
6325                         if (stcb) {
6326                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6327                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6328                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6329                                 SCTP_TCB_UNLOCK(stcb);
6330                         } else {
6331                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6332                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6333                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6334                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6335                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6336                                         SCTP_INP_WLOCK(inp);
6337                                         inp->def_send.sinfo_flags &= 0xfff0;
6338                                         inp->def_send.sinfo_flags |= info->pr_policy;
6339                                         inp->def_send.sinfo_timetolive = info->pr_value;
6340                                         SCTP_INP_WUNLOCK(inp);
6341                                 }
6342                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6343                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6344                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6345                                         SCTP_INP_RLOCK(inp);
6346                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6347                                                 SCTP_TCB_LOCK(stcb);
6348                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6349                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6350                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6351                                                 SCTP_TCB_UNLOCK(stcb);
6352                                         }
6353                                         SCTP_INP_RUNLOCK(inp);
6354                                 }
6355                         }
6356                         break;
6357                 }
6358         case SCTP_PEER_ADDR_THLDS:
6359                 /* Applies to the specific association */
6360                 {
6361                         struct sctp_paddrthlds *thlds;
6362                         struct sctp_nets *net;
6363                         struct sockaddr *addr;
6364 #if defined(INET) && defined(INET6)
6365                         struct sockaddr_in sin_store;
6366 #endif
6367
6368                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6369                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6370
6371 #if defined(INET) && defined(INET6)
6372                         if (thlds->spt_address.ss_family == AF_INET6) {
6373                                 struct sockaddr_in6 *sin6;
6374
6375                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6376                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6377                                         in6_sin6_2_sin(&sin_store, sin6);
6378                                         addr = (struct sockaddr *)&sin_store;
6379                                 } else {
6380                                         addr = (struct sockaddr *)&thlds->spt_address;
6381                                 }
6382                         } else {
6383                                 addr = (struct sockaddr *)&thlds->spt_address;
6384                         }
6385 #else
6386                         addr = (struct sockaddr *)&thlds->spt_address;
6387 #endif
6388                         if (stcb != NULL) {
6389                                 net = sctp_findnet(stcb, addr);
6390                         } else {
6391                                 /*
6392                                  * We increment here since
6393                                  * sctp_findassociation_ep_addr() wil do a
6394                                  * decrement if it finds the stcb as long as
6395                                  * the locked tcb (last argument) is NOT a
6396                                  * TCB.. aka NULL.
6397                                  */
6398                                 net = NULL;
6399                                 SCTP_INP_INCR_REF(inp);
6400                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6401                                     &net, NULL, NULL);
6402                                 if (stcb == NULL) {
6403                                         SCTP_INP_DECR_REF(inp);
6404                                 }
6405                         }
6406                         if ((stcb != NULL) && (net == NULL)) {
6407 #ifdef INET
6408                                 if (addr->sa_family == AF_INET) {
6409
6410                                         struct sockaddr_in *sin;
6411
6412                                         sin = (struct sockaddr_in *)addr;
6413                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
6422                                 if (addr->sa_family == AF_INET6) {
6423                                         struct sockaddr_in6 *sin6;
6424
6425                                         sin6 = (struct sockaddr_in6 *)addr;
6426                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6427                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6428                                                 SCTP_TCB_UNLOCK(stcb);
6429                                                 error = EINVAL;
6430                                                 break;
6431                                         }
6432                                 } else
6433 #endif
6434                                 {
6435                                         error = EAFNOSUPPORT;
6436                                         SCTP_TCB_UNLOCK(stcb);
6437                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6438                                         break;
6439                                 }
6440                         }
6441                         if (thlds->spt_pathcpthld != 0xffff) {
6442                                 if (stcb != NULL) {
6443                                         SCTP_TCB_UNLOCK(stcb);
6444                                 }
6445                                 error = EINVAL;
6446                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6447                                 break;
6448                         }
6449                         if (stcb != NULL) {
6450                                 if (net != NULL) {
6451                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6452                                         net->pf_threshold = thlds->spt_pathpfthld;
6453                                         if (net->dest_state & SCTP_ADDR_PF) {
6454                                                 if ((net->error_count > net->failure_threshold) ||
6455                                                     (net->error_count <= net->pf_threshold)) {
6456                                                         net->dest_state &= ~SCTP_ADDR_PF;
6457                                                 }
6458                                         } else {
6459                                                 if ((net->error_count > net->pf_threshold) &&
6460                                                     (net->error_count <= net->failure_threshold)) {
6461                                                         net->dest_state |= SCTP_ADDR_PF;
6462                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6463                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6464                                                             stcb->sctp_ep, stcb, net,
6465                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6466                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6467                                                 }
6468                                         }
6469                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6470                                                 if (net->error_count > net->failure_threshold) {
6471                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6472                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6473                                                 }
6474                                         } else {
6475                                                 if (net->error_count <= net->failure_threshold) {
6476                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6477                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6478                                                 }
6479                                         }
6480                                 } else {
6481                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6482                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6483                                                 net->pf_threshold = thlds->spt_pathpfthld;
6484                                                 if (net->dest_state & SCTP_ADDR_PF) {
6485                                                         if ((net->error_count > net->failure_threshold) ||
6486                                                             (net->error_count <= net->pf_threshold)) {
6487                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6488                                                         }
6489                                                 } else {
6490                                                         if ((net->error_count > net->pf_threshold) &&
6491                                                             (net->error_count <= net->failure_threshold)) {
6492                                                                 net->dest_state |= SCTP_ADDR_PF;
6493                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6494                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6495                                                                     stcb->sctp_ep, stcb, net,
6496                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6497                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6498                                                         }
6499                                                 }
6500                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6501                                                         if (net->error_count > net->failure_threshold) {
6502                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6503                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6504                                                         }
6505                                                 } else {
6506                                                         if (net->error_count <= net->failure_threshold) {
6507                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6508                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6509                                                         }
6510                                                 }
6511                                         }
6512                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6513                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6514                                 }
6515                                 SCTP_TCB_UNLOCK(stcb);
6516                         } else {
6517                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6518                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6519                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6520                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6521                                         SCTP_INP_WLOCK(inp);
6522                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6523                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6524                                         SCTP_INP_WUNLOCK(inp);
6525                                 } else {
6526                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6527                                         error = EINVAL;
6528                                 }
6529                         }
6530                         break;
6531                 }
6532         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6533                 {
6534                         struct sctp_udpencaps *encaps;
6535                         struct sctp_nets *net;
6536                         struct sockaddr *addr;
6537 #if defined(INET) && defined(INET6)
6538                         struct sockaddr_in sin_store;
6539 #endif
6540
6541                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6542                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6543
6544 #if defined(INET) && defined(INET6)
6545                         if (encaps->sue_address.ss_family == AF_INET6) {
6546                                 struct sockaddr_in6 *sin6;
6547
6548                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6549                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6550                                         in6_sin6_2_sin(&sin_store, sin6);
6551                                         addr = (struct sockaddr *)&sin_store;
6552                                 } else {
6553                                         addr = (struct sockaddr *)&encaps->sue_address;
6554                                 }
6555                         } else {
6556                                 addr = (struct sockaddr *)&encaps->sue_address;
6557                         }
6558 #else
6559                         addr = (struct sockaddr *)&encaps->sue_address;
6560 #endif
6561                         if (stcb != NULL) {
6562                                 net = sctp_findnet(stcb, addr);
6563                         } else {
6564                                 /*
6565                                  * We increment here since
6566                                  * sctp_findassociation_ep_addr() wil do a
6567                                  * decrement if it finds the stcb as long as
6568                                  * the locked tcb (last argument) is NOT a
6569                                  * TCB.. aka NULL.
6570                                  */
6571                                 net = NULL;
6572                                 SCTP_INP_INCR_REF(inp);
6573                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6574                                 if (stcb == NULL) {
6575                                         SCTP_INP_DECR_REF(inp);
6576                                 }
6577                         }
6578                         if ((stcb != NULL) && (net == NULL)) {
6579 #ifdef INET
6580                                 if (addr->sa_family == AF_INET) {
6581
6582                                         struct sockaddr_in *sin;
6583
6584                                         sin = (struct sockaddr_in *)addr;
6585                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
6594                                 if (addr->sa_family == AF_INET6) {
6595                                         struct sockaddr_in6 *sin6;
6596
6597                                         sin6 = (struct sockaddr_in6 *)addr;
6598                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6599                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6600                                                 SCTP_TCB_UNLOCK(stcb);
6601                                                 error = EINVAL;
6602                                                 break;
6603                                         }
6604                                 } else
6605 #endif
6606                                 {
6607                                         error = EAFNOSUPPORT;
6608                                         SCTP_TCB_UNLOCK(stcb);
6609                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6610                                         break;
6611                                 }
6612                         }
6613
6614                         if (stcb != NULL) {
6615                                 if (net != NULL) {
6616                                         net->port = encaps->sue_port;
6617                                 } else {
6618                                         stcb->asoc.port = encaps->sue_port;
6619                                 }
6620                                 SCTP_TCB_UNLOCK(stcb);
6621                         } else {
6622                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6623                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6624                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6625                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6626                                         SCTP_INP_WLOCK(inp);
6627                                         inp->sctp_ep.port = encaps->sue_port;
6628                                         SCTP_INP_WUNLOCK(inp);
6629                                 } else {
6630                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6631                                         error = EINVAL;
6632                                 }
6633                         }
6634                         break;
6635                 }
6636         case SCTP_ECN_SUPPORTED:
6637                 {
6638                         struct sctp_assoc_value *av;
6639
6640                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6641                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6642
6643                         if (stcb) {
6644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6645                                 error = EINVAL;
6646                                 SCTP_TCB_UNLOCK(stcb);
6647                         } else {
6648                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6649                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6650                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6651                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6652                                         SCTP_INP_WLOCK(inp);
6653                                         if (av->assoc_value == 0) {
6654                                                 inp->ecn_supported = 0;
6655                                         } else {
6656                                                 inp->ecn_supported = 1;
6657                                         }
6658                                         SCTP_INP_WUNLOCK(inp);
6659                                 } else {
6660                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6661                                         error = EINVAL;
6662                                 }
6663                         }
6664                         break;
6665                 }
6666         case SCTP_PR_SUPPORTED:
6667                 {
6668                         struct sctp_assoc_value *av;
6669
6670                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6671                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6672
6673                         if (stcb) {
6674                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6675                                 error = EINVAL;
6676                                 SCTP_TCB_UNLOCK(stcb);
6677                         } else {
6678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6680                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6681                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6682                                         SCTP_INP_WLOCK(inp);
6683                                         if (av->assoc_value == 0) {
6684                                                 inp->prsctp_supported = 0;
6685                                         } else {
6686                                                 inp->prsctp_supported = 1;
6687                                         }
6688                                         SCTP_INP_WUNLOCK(inp);
6689                                 } else {
6690                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6691                                         error = EINVAL;
6692                                 }
6693                         }
6694                         break;
6695                 }
6696         case SCTP_AUTH_SUPPORTED:
6697                 {
6698                         struct sctp_assoc_value *av;
6699
6700                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6701                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6702
6703                         if (stcb) {
6704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6705                                 error = EINVAL;
6706                                 SCTP_TCB_UNLOCK(stcb);
6707                         } else {
6708                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6709                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6710                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6711                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6712                                         if ((av->assoc_value == 0) &&
6713                                             (inp->asconf_supported == 1)) {
6714                                                 /*
6715                                                  * AUTH is required for
6716                                                  * ASCONF
6717                                                  */
6718                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6719                                                 error = EINVAL;
6720                                         } else {
6721                                                 SCTP_INP_WLOCK(inp);
6722                                                 if (av->assoc_value == 0) {
6723                                                         inp->auth_supported = 0;
6724                                                 } else {
6725                                                         inp->auth_supported = 1;
6726                                                 }
6727                                                 SCTP_INP_WUNLOCK(inp);
6728                                         }
6729                                 } else {
6730                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6731                                         error = EINVAL;
6732                                 }
6733                         }
6734                         break;
6735                 }
6736         case SCTP_ASCONF_SUPPORTED:
6737                 {
6738                         struct sctp_assoc_value *av;
6739
6740                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6741                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6742
6743                         if (stcb) {
6744                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6745                                 error = EINVAL;
6746                                 SCTP_TCB_UNLOCK(stcb);
6747                         } else {
6748                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6749                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6750                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6751                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6752                                         if ((av->assoc_value != 0) &&
6753                                             (inp->auth_supported == 0)) {
6754                                                 /*
6755                                                  * AUTH is required for
6756                                                  * ASCONF
6757                                                  */
6758                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6759                                                 error = EINVAL;
6760                                         } else {
6761                                                 SCTP_INP_WLOCK(inp);
6762                                                 if (av->assoc_value == 0) {
6763                                                         inp->asconf_supported = 0;
6764                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6765                                                             inp->sctp_ep.local_auth_chunks);
6766                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6767                                                             inp->sctp_ep.local_auth_chunks);
6768                                                 } else {
6769                                                         inp->asconf_supported = 1;
6770                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6771                                                             inp->sctp_ep.local_auth_chunks);
6772                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6773                                                             inp->sctp_ep.local_auth_chunks);
6774                                                 }
6775                                                 SCTP_INP_WUNLOCK(inp);
6776                                         }
6777                                 } else {
6778                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6779                                         error = EINVAL;
6780                                 }
6781                         }
6782                         break;
6783                 }
6784         case SCTP_RECONFIG_SUPPORTED:
6785                 {
6786                         struct sctp_assoc_value *av;
6787
6788                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6789                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6790
6791                         if (stcb) {
6792                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6793                                 error = EINVAL;
6794                                 SCTP_TCB_UNLOCK(stcb);
6795                         } else {
6796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6798                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6799                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6800                                         SCTP_INP_WLOCK(inp);
6801                                         if (av->assoc_value == 0) {
6802                                                 inp->reconfig_supported = 0;
6803                                         } else {
6804                                                 inp->reconfig_supported = 1;
6805                                         }
6806                                         SCTP_INP_WUNLOCK(inp);
6807                                 } else {
6808                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6809                                         error = EINVAL;
6810                                 }
6811                         }
6812                         break;
6813                 }
6814         case SCTP_NRSACK_SUPPORTED:
6815                 {
6816                         struct sctp_assoc_value *av;
6817
6818                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6819                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6820
6821                         if (stcb) {
6822                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6823                                 error = EINVAL;
6824                                 SCTP_TCB_UNLOCK(stcb);
6825                         } else {
6826                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6827                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6828                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6829                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6830                                         SCTP_INP_WLOCK(inp);
6831                                         if (av->assoc_value == 0) {
6832                                                 inp->nrsack_supported = 0;
6833                                         } else {
6834                                                 inp->nrsack_supported = 1;
6835                                         }
6836                                         SCTP_INP_WUNLOCK(inp);
6837                                 } else {
6838                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6839                                         error = EINVAL;
6840                                 }
6841                         }
6842                         break;
6843                 }
6844         case SCTP_PKTDROP_SUPPORTED:
6845                 {
6846                         struct sctp_assoc_value *av;
6847
6848                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6849                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6850
6851                         if (stcb) {
6852                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6853                                 error = EINVAL;
6854                                 SCTP_TCB_UNLOCK(stcb);
6855                         } else {
6856                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6857                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6858                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6859                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6860                                         SCTP_INP_WLOCK(inp);
6861                                         if (av->assoc_value == 0) {
6862                                                 inp->pktdrop_supported = 0;
6863                                         } else {
6864                                                 inp->pktdrop_supported = 1;
6865                                         }
6866                                         SCTP_INP_WUNLOCK(inp);
6867                                 } else {
6868                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6869                                         error = EINVAL;
6870                                 }
6871                         }
6872                         break;
6873                 }
6874         case SCTP_MAX_CWND:
6875                 {
6876                         struct sctp_assoc_value *av;
6877                         struct sctp_nets *net;
6878
6879                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6880                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6881
6882                         if (stcb) {
6883                                 stcb->asoc.max_cwnd = av->assoc_value;
6884                                 if (stcb->asoc.max_cwnd > 0) {
6885                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6886                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6887                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6888                                                         net->cwnd = stcb->asoc.max_cwnd;
6889                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6890                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6891                                                         }
6892                                                 }
6893                                         }
6894                                 }
6895                                 SCTP_TCB_UNLOCK(stcb);
6896                         } else {
6897                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6898                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6899                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6900                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6901                                         SCTP_INP_WLOCK(inp);
6902                                         inp->max_cwnd = av->assoc_value;
6903                                         SCTP_INP_WUNLOCK(inp);
6904                                 } else {
6905                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6906                                         error = EINVAL;
6907                                 }
6908                         }
6909                         break;
6910                 }
6911         default:
6912                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6913                 error = ENOPROTOOPT;
6914                 break;
6915         }                       /* end switch (opt) */
6916         return (error);
6917 }
6918
6919 int
6920 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6921 {
6922         struct epoch_tracker et;
6923         struct sctp_inpcb *inp;
6924         void *optval = NULL;
6925         void *p;
6926         size_t optsize = 0;
6927         int error = 0;
6928
6929         if ((sopt->sopt_level == SOL_SOCKET) &&
6930             (sopt->sopt_name == SO_SETFIB)) {
6931                 inp = (struct sctp_inpcb *)so->so_pcb;
6932                 if (inp == NULL) {
6933                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6934                         return (EINVAL);
6935                 }
6936                 SCTP_INP_WLOCK(inp);
6937                 inp->fibnum = so->so_fibnum;
6938                 SCTP_INP_WUNLOCK(inp);
6939                 return (0);
6940         }
6941         if (sopt->sopt_level != IPPROTO_SCTP) {
6942                 /* wrong proto level... send back up to IP */
6943 #ifdef INET6
6944                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6945                         error = ip6_ctloutput(so, sopt);
6946 #endif                          /* INET6 */
6947 #if defined(INET) && defined(INET6)
6948                 else
6949 #endif
6950 #ifdef INET
6951                         error = ip_ctloutput(so, sopt);
6952 #endif
6953                 return (error);
6954         }
6955         optsize = sopt->sopt_valsize;
6956         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6957                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6958                 return (ENOBUFS);
6959         }
6960         if (optsize) {
6961                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6962                 if (optval == NULL) {
6963                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6964                         return (ENOBUFS);
6965                 }
6966                 error = sooptcopyin(sopt, optval, optsize, optsize);
6967                 if (error) {
6968                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6969                         goto out;
6970                 }
6971         }
6972         p = (void *)sopt->sopt_td;
6973         if (sopt->sopt_dir == SOPT_SET) {
6974                 NET_EPOCH_ENTER(et);
6975                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6976                 NET_EPOCH_EXIT(et);
6977         } else if (sopt->sopt_dir == SOPT_GET) {
6978                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6979         } else {
6980                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6981                 error = EINVAL;
6982         }
6983         if ((error == 0) && (optval != NULL)) {
6984                 error = sooptcopyout(sopt, optval, optsize);
6985                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6986         } else if (optval != NULL) {
6987                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6988         }
6989 out:
6990         return (error);
6991 }
6992
6993 #ifdef INET
6994 static int
6995 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6996 {
6997         struct epoch_tracker et;
6998         int error = 0;
6999         int create_lock_on = 0;
7000         uint32_t vrf_id;
7001         struct sctp_inpcb *inp;
7002         struct sctp_tcb *stcb = NULL;
7003
7004         inp = (struct sctp_inpcb *)so->so_pcb;
7005         if (inp == NULL) {
7006                 /* I made the same as TCP since we are not setup? */
7007                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7008                 return (ECONNRESET);
7009         }
7010         if (addr == NULL) {
7011                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7012                 return EINVAL;
7013         }
7014
7015         switch (addr->sa_family) {
7016 #ifdef INET6
7017         case AF_INET6:
7018                 {
7019                         struct sockaddr_in6 *sin6;
7020
7021                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
7022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7023                                 return (EINVAL);
7024                         }
7025                         sin6 = (struct sockaddr_in6 *)addr;
7026                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_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 #ifdef INET
7034         case AF_INET:
7035                 {
7036                         struct sockaddr_in *sin;
7037
7038                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
7039                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7040                                 return (EINVAL);
7041                         }
7042                         sin = (struct sockaddr_in *)addr;
7043                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
7044                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7045                                 return (error);
7046                         }
7047                         break;
7048                 }
7049 #endif
7050         default:
7051                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
7052                 return (EAFNOSUPPORT);
7053         }
7054         SCTP_INP_INCR_REF(inp);
7055         SCTP_ASOC_CREATE_LOCK(inp);
7056         create_lock_on = 1;
7057         NET_EPOCH_ENTER(et);
7058
7059         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7060             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7061                 /* Should I really unlock ? */
7062                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7063                 error = EFAULT;
7064                 goto out_now;
7065         }
7066 #ifdef INET6
7067         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7068             (addr->sa_family == AF_INET6)) {
7069                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7070                 error = EINVAL;
7071                 goto out_now;
7072         }
7073 #endif
7074         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7075             SCTP_PCB_FLAGS_UNBOUND) {
7076                 /* Bind a ephemeral port */
7077                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7078                 if (error) {
7079                         goto out_now;
7080                 }
7081         }
7082         /* Now do we connect? */
7083         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7084             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7085                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7086                 error = EINVAL;
7087                 goto out_now;
7088         }
7089         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7090             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7091                 /* We are already connected AND the TCP model */
7092                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7093                 error = EADDRINUSE;
7094                 goto out_now;
7095         }
7096         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7097                 SCTP_INP_RLOCK(inp);
7098                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7099                 SCTP_INP_RUNLOCK(inp);
7100         } else {
7101                 /*
7102                  * We increment here since sctp_findassociation_ep_addr()
7103                  * will do a decrement if it finds the stcb as long as the
7104                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7105                  */
7106                 SCTP_INP_INCR_REF(inp);
7107                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7108                 if (stcb == NULL) {
7109                         SCTP_INP_DECR_REF(inp);
7110                 } else {
7111                         SCTP_TCB_UNLOCK(stcb);
7112                 }
7113         }
7114         if (stcb != NULL) {
7115                 /* Already have or am bring up an association */
7116                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7117                 error = EALREADY;
7118                 goto out_now;
7119         }
7120
7121         vrf_id = inp->def_vrf_id;
7122         /* We are GOOD to go */
7123         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7124             inp->sctp_ep.pre_open_stream_count,
7125             inp->sctp_ep.port, p,
7126             SCTP_INITIALIZE_AUTH_PARAMS);
7127         if (stcb == NULL) {
7128                 /* Gak! no memory */
7129                 goto out_now;
7130         }
7131         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7132                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7133                 /* Set the connected flag so we can queue data */
7134                 soisconnecting(so);
7135         }
7136         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7137         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7138
7139         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7140         SCTP_TCB_UNLOCK(stcb);
7141 out_now:
7142         NET_EPOCH_EXIT(et);
7143         if (create_lock_on) {
7144                 SCTP_ASOC_CREATE_UNLOCK(inp);
7145         }
7146         SCTP_INP_DECR_REF(inp);
7147         return (error);
7148 }
7149 #endif
7150
7151 int
7152 sctp_listen(struct socket *so, int backlog, struct thread *p)
7153 {
7154         /*
7155          * Note this module depends on the protocol processing being called
7156          * AFTER any socket level flags and backlog are applied to the
7157          * socket. The traditional way that the socket flags are applied is
7158          * AFTER protocol processing. We have made a change to the
7159          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7160          * place if the socket API for SCTP is to work properly.
7161          */
7162
7163         int error = 0;
7164         struct sctp_inpcb *inp;
7165
7166         inp = (struct sctp_inpcb *)so->so_pcb;
7167         if (inp == NULL) {
7168                 /* I made the same as TCP since we are not setup? */
7169                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7170                 return (ECONNRESET);
7171         }
7172         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7173                 /* See if we have a listener */
7174                 struct sctp_inpcb *tinp;
7175                 union sctp_sockstore store;
7176
7177                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7178                         /* not bound all */
7179                         struct sctp_laddr *laddr;
7180
7181                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7182                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7183                                 switch (store.sa.sa_family) {
7184 #ifdef INET
7185                                 case AF_INET:
7186                                         store.sin.sin_port = inp->sctp_lport;
7187                                         break;
7188 #endif
7189 #ifdef INET6
7190                                 case AF_INET6:
7191                                         store.sin6.sin6_port = inp->sctp_lport;
7192                                         break;
7193 #endif
7194                                 default:
7195                                         break;
7196                                 }
7197                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7198                                 if (tinp && (tinp != inp) &&
7199                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7200                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7201                                     (SCTP_IS_LISTENING(tinp))) {
7202                                         /*
7203                                          * we have a listener already and
7204                                          * its not this inp.
7205                                          */
7206                                         SCTP_INP_DECR_REF(tinp);
7207                                         return (EADDRINUSE);
7208                                 } else if (tinp) {
7209                                         SCTP_INP_DECR_REF(tinp);
7210                                 }
7211                         }
7212                 } else {
7213                         /* Setup a local addr bound all */
7214                         memset(&store, 0, sizeof(store));
7215 #ifdef INET6
7216                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7217                                 store.sa.sa_family = AF_INET6;
7218                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7219                         }
7220 #endif
7221 #ifdef INET
7222                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7223                                 store.sa.sa_family = AF_INET;
7224                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7225                         }
7226 #endif
7227                         switch (store.sa.sa_family) {
7228 #ifdef INET
7229                         case AF_INET:
7230                                 store.sin.sin_port = inp->sctp_lport;
7231                                 break;
7232 #endif
7233 #ifdef INET6
7234                         case AF_INET6:
7235                                 store.sin6.sin6_port = inp->sctp_lport;
7236                                 break;
7237 #endif
7238                         default:
7239                                 break;
7240                         }
7241                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7242                         if (tinp && (tinp != inp) &&
7243                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7244                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7245                             (SCTP_IS_LISTENING(tinp))) {
7246                                 /*
7247                                  * we have a listener already and its not
7248                                  * this inp.
7249                                  */
7250                                 SCTP_INP_DECR_REF(tinp);
7251                                 return (EADDRINUSE);
7252                         } else if (tinp) {
7253                                 SCTP_INP_DECR_REF(tinp);
7254                         }
7255                 }
7256         }
7257         SCTP_INP_RLOCK(inp);
7258 #ifdef SCTP_LOCK_LOGGING
7259         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7260                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7261         }
7262 #endif
7263         SOCK_LOCK(so);
7264         error = solisten_proto_check(so);
7265         SOCK_UNLOCK(so);
7266         if (error) {
7267                 SCTP_INP_RUNLOCK(inp);
7268                 return (error);
7269         }
7270         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7271             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7272                 /*
7273                  * The unlucky case - We are in the tcp pool with this guy.
7274                  * - Someone else is in the main inp slot. - We must move
7275                  * this guy (the listener) to the main slot - We must then
7276                  * move the guy that was listener to the TCP Pool.
7277                  */
7278                 if (sctp_swap_inpcb_for_listen(inp)) {
7279                         SCTP_INP_RUNLOCK(inp);
7280                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7281                         return (EADDRINUSE);
7282                 }
7283         }
7284
7285         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7286             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7287                 /* We are already connected AND the TCP model */
7288                 SCTP_INP_RUNLOCK(inp);
7289                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7290                 return (EADDRINUSE);
7291         }
7292         SCTP_INP_RUNLOCK(inp);
7293         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7294                 /* We must do a bind. */
7295                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7296                         /* bind error, probably perm */
7297                         return (error);
7298                 }
7299         }
7300         SCTP_INP_WLOCK(inp);
7301         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7302                 SOCK_LOCK(so);
7303                 solisten_proto(so, backlog);
7304                 SOCK_UNLOCK(so);
7305         }
7306         if (backlog > 0) {
7307                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7308         } else {
7309                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7310         }
7311         SCTP_INP_WUNLOCK(inp);
7312         return (error);
7313 }
7314
7315 static int sctp_defered_wakeup_cnt = 0;
7316
7317 int
7318 sctp_accept(struct socket *so, struct sockaddr **addr)
7319 {
7320         struct sctp_tcb *stcb;
7321         struct sctp_inpcb *inp;
7322         union sctp_sockstore store;
7323 #ifdef INET6
7324         int error;
7325 #endif
7326         inp = (struct sctp_inpcb *)so->so_pcb;
7327
7328         if (inp == NULL) {
7329                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7330                 return (ECONNRESET);
7331         }
7332         SCTP_INP_WLOCK(inp);
7333         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7334                 SCTP_INP_WUNLOCK(inp);
7335                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7336                 return (EOPNOTSUPP);
7337         }
7338         if (so->so_state & SS_ISDISCONNECTED) {
7339                 SCTP_INP_WUNLOCK(inp);
7340                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7341                 return (ECONNABORTED);
7342         }
7343         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7344         if (stcb == NULL) {
7345                 SCTP_INP_WUNLOCK(inp);
7346                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7347                 return (ECONNRESET);
7348         }
7349         SCTP_TCB_LOCK(stcb);
7350         store = stcb->asoc.primary_destination->ro._l_addr;
7351         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7352         /* Wake any delayed sleep action */
7353         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7354                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7355                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7356                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7357                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7358                         if (sowriteable(inp->sctp_socket)) {
7359                                 sowwakeup_locked(inp->sctp_socket);
7360                         } else {
7361                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7362                         }
7363                 }
7364                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7365                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7366                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7367                         if (soreadable(inp->sctp_socket)) {
7368                                 sctp_defered_wakeup_cnt++;
7369                                 sorwakeup_locked(inp->sctp_socket);
7370                         } else {
7371                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7372                         }
7373                 }
7374         }
7375         SCTP_INP_WUNLOCK(inp);
7376         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7377                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7378                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7379         } else {
7380                 SCTP_TCB_UNLOCK(stcb);
7381         }
7382         switch (store.sa.sa_family) {
7383 #ifdef INET
7384         case AF_INET:
7385                 {
7386                         struct sockaddr_in *sin;
7387
7388                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7389                         if (sin == NULL)
7390                                 return (ENOMEM);
7391                         sin->sin_family = AF_INET;
7392                         sin->sin_len = sizeof(*sin);
7393                         sin->sin_port = store.sin.sin_port;
7394                         sin->sin_addr = store.sin.sin_addr;
7395                         *addr = (struct sockaddr *)sin;
7396                         break;
7397                 }
7398 #endif
7399 #ifdef INET6
7400         case AF_INET6:
7401                 {
7402                         struct sockaddr_in6 *sin6;
7403
7404                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7405                         if (sin6 == NULL)
7406                                 return (ENOMEM);
7407                         sin6->sin6_family = AF_INET6;
7408                         sin6->sin6_len = sizeof(*sin6);
7409                         sin6->sin6_port = store.sin6.sin6_port;
7410                         sin6->sin6_addr = store.sin6.sin6_addr;
7411                         if ((error = sa6_recoverscope(sin6)) != 0) {
7412                                 SCTP_FREE_SONAME(sin6);
7413                                 return (error);
7414                         }
7415                         *addr = (struct sockaddr *)sin6;
7416                         break;
7417                 }
7418 #endif
7419         default:
7420                 /* TSNH */
7421                 break;
7422         }
7423         return (0);
7424 }
7425
7426 #ifdef INET
7427 int
7428 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7429 {
7430         struct sockaddr_in *sin;
7431         uint32_t vrf_id;
7432         struct sctp_inpcb *inp;
7433         struct sctp_ifa *sctp_ifa;
7434
7435         /*
7436          * Do the malloc first in case it blocks.
7437          */
7438         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7439         if (sin == NULL)
7440                 return (ENOMEM);
7441         sin->sin_family = AF_INET;
7442         sin->sin_len = sizeof(*sin);
7443         inp = (struct sctp_inpcb *)so->so_pcb;
7444         if (!inp) {
7445                 SCTP_FREE_SONAME(sin);
7446                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7447                 return (ECONNRESET);
7448         }
7449         SCTP_INP_RLOCK(inp);
7450         sin->sin_port = inp->sctp_lport;
7451         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7452                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7453                         struct sctp_tcb *stcb;
7454                         struct sockaddr_in *sin_a;
7455                         struct sctp_nets *net;
7456                         int fnd;
7457
7458                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7459                         if (stcb == NULL) {
7460                                 goto notConn;
7461                         }
7462                         fnd = 0;
7463                         sin_a = NULL;
7464                         SCTP_TCB_LOCK(stcb);
7465                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7466                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7467                                 if (sin_a == NULL)
7468                                         /* this will make coverity happy */
7469                                         continue;
7470
7471                                 if (sin_a->sin_family == AF_INET) {
7472                                         fnd = 1;
7473                                         break;
7474                                 }
7475                         }
7476                         if ((!fnd) || (sin_a == NULL)) {
7477                                 /* punt */
7478                                 SCTP_TCB_UNLOCK(stcb);
7479                                 goto notConn;
7480                         }
7481
7482                         vrf_id = inp->def_vrf_id;
7483                         sctp_ifa = sctp_source_address_selection(inp,
7484                             stcb,
7485                             (sctp_route_t *)&net->ro,
7486                             net, 0, vrf_id);
7487                         if (sctp_ifa) {
7488                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7489                                 sctp_free_ifa(sctp_ifa);
7490                         }
7491                         SCTP_TCB_UNLOCK(stcb);
7492                 } else {
7493                         /* For the bound all case you get back 0 */
7494         notConn:
7495                         sin->sin_addr.s_addr = 0;
7496                 }
7497
7498         } else {
7499                 /* Take the first IPv4 address in the list */
7500                 struct sctp_laddr *laddr;
7501                 int fnd = 0;
7502
7503                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7504                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7505                                 struct sockaddr_in *sin_a;
7506
7507                                 sin_a = &laddr->ifa->address.sin;
7508                                 sin->sin_addr = sin_a->sin_addr;
7509                                 fnd = 1;
7510                                 break;
7511                         }
7512                 }
7513                 if (!fnd) {
7514                         SCTP_FREE_SONAME(sin);
7515                         SCTP_INP_RUNLOCK(inp);
7516                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7517                         return (ENOENT);
7518                 }
7519         }
7520         SCTP_INP_RUNLOCK(inp);
7521         (*addr) = (struct sockaddr *)sin;
7522         return (0);
7523 }
7524
7525 int
7526 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7527 {
7528         struct sockaddr_in *sin;
7529         int fnd;
7530         struct sockaddr_in *sin_a;
7531         struct sctp_inpcb *inp;
7532         struct sctp_tcb *stcb;
7533         struct sctp_nets *net;
7534
7535         /* Do the malloc first in case it blocks. */
7536         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7537         if (sin == NULL)
7538                 return (ENOMEM);
7539         sin->sin_family = AF_INET;
7540         sin->sin_len = sizeof(*sin);
7541
7542         inp = (struct sctp_inpcb *)so->so_pcb;
7543         if ((inp == NULL) ||
7544             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7545                 /* UDP type and listeners will drop out here */
7546                 SCTP_FREE_SONAME(sin);
7547                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7548                 return (ENOTCONN);
7549         }
7550         SCTP_INP_RLOCK(inp);
7551         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7552         if (stcb) {
7553                 SCTP_TCB_LOCK(stcb);
7554         }
7555         SCTP_INP_RUNLOCK(inp);
7556         if (stcb == NULL) {
7557                 SCTP_FREE_SONAME(sin);
7558                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7559                 return (ECONNRESET);
7560         }
7561         fnd = 0;
7562         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7563                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7564                 if (sin_a->sin_family == AF_INET) {
7565                         fnd = 1;
7566                         sin->sin_port = stcb->rport;
7567                         sin->sin_addr = sin_a->sin_addr;
7568                         break;
7569                 }
7570         }
7571         SCTP_TCB_UNLOCK(stcb);
7572         if (!fnd) {
7573                 /* No IPv4 address */
7574                 SCTP_FREE_SONAME(sin);
7575                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7576                 return (ENOENT);
7577         }
7578         (*addr) = (struct sockaddr *)sin;
7579         return (0);
7580 }
7581
7582 struct pr_usrreqs sctp_usrreqs = {
7583         .pru_abort = sctp_abort,
7584         .pru_accept = sctp_accept,
7585         .pru_attach = sctp_attach,
7586         .pru_bind = sctp_bind,
7587         .pru_connect = sctp_connect,
7588         .pru_control = in_control,
7589         .pru_close = sctp_close,
7590         .pru_detach = sctp_close,
7591         .pru_sopoll = sopoll_generic,
7592         .pru_flush = sctp_flush,
7593         .pru_disconnect = sctp_disconnect,
7594         .pru_listen = sctp_listen,
7595         .pru_peeraddr = sctp_peeraddr,
7596         .pru_send = sctp_sendm,
7597         .pru_shutdown = sctp_shutdown,
7598         .pru_sockaddr = sctp_ingetaddr,
7599         .pru_sosend = sctp_sosend,
7600         .pru_soreceive = sctp_soreceive
7601 };
7602 #endif