sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                         }
 129                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 130                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 131                         }
 132                         chk->sent = SCTP_DATAGRAM_RESEND;
 133                         chk->rec.data.doing_fast_retransmit = 0;
 134                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 135                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 136                                     chk->whoTo->flight_size,
 137                                     chk->book_size,
 138                                     (uintptr_t) chk->whoTo,
 139                                     chk->rec.data.TSN_seq);
 140                         }
 141                         /* Clear any time so NO RTT is being done */
 142                         chk->do_rtt = 0;
 143                 }
 144         }
 145 }
 146
 147 #ifdef INET
 148 static void
 149 sctp_notify_mbuf(struct sctp_inpcb *inp,
 150     struct sctp_tcb *stcb,
 151     struct sctp_nets *net,
 152     struct ip *ip,
 153     struct sctphdr *sh)
 154 {
 155         struct icmp *icmph;
 156         int totsz, tmr_stopped = 0;
 157         uint16_t nxtsz;
 158
 159         /* protection */
 160         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 161             (ip == NULL) || (sh == NULL)) {
 162                 if (stcb != NULL) {
 163                         SCTP_TCB_UNLOCK(stcb);
 164                 }
 165                 return;
 166         }
 167         /* First job is to verify the vtag matches what I would send */
 168         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 169                 SCTP_TCB_UNLOCK(stcb);
 170                 return;
 171         }
 172         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 173             sizeof(struct ip)));
 174         if (icmph->icmp_type != ICMP_UNREACH) {
 175                 /* We only care about unreachable */
 176                 SCTP_TCB_UNLOCK(stcb);
 177                 return;
 178         }
 179         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 180                 /* not a unreachable message due to frag. */
 181                 SCTP_TCB_UNLOCK(stcb);
 182                 return;
 183         }
 184         totsz = ntohs(ip->ip_len);
 185
 186         nxtsz = ntohs(icmph->icmp_nextmtu);
 187         if (nxtsz == 0) {
 188                 /*
 189                  * old type router that does not tell us what the next size
 190                  * mtu is. Rats we will have to guess (in a educated fashion
 191                  * of course)
 192                  */
 193                 nxtsz = sctp_get_prev_mtu(totsz);
 194         }
 195         /* Stop any PMTU timer */
 196         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 197                 tmr_stopped = 1;
 198                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 199                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 200         }
 201         /* Adjust destination size limit */
 202         if (net->mtu > nxtsz) {
 203                 net->mtu = nxtsz;
 204                 if (net->port) {
 205                         net->mtu -= sizeof(struct udphdr);
 206                 }
 207         }
 208         /* now what about the ep? */
 209         if (stcb->asoc.smallest_mtu > nxtsz) {
 210                 sctp_pathmtu_adjustment(stcb, nxtsz);
 211         }
 212         if (tmr_stopped)
 213                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 214
 215         SCTP_TCB_UNLOCK(stcb);
 216 }
 217
 218 void
 219 sctp_notify(struct sctp_inpcb *inp,
 220     struct ip *ip,
 221     struct sctphdr *sh,
 222     struct sockaddr *to,
 223     struct sctp_tcb *stcb,
 224     struct sctp_nets *net)
 225 {
 226 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 227         struct socket *so;
 228
 229 #endif
 230         struct icmp *icmph;
 231
 232         /* protection */
 233         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 234             (sh == NULL) || (to == NULL)) {
 235                 if (stcb)
 236                         SCTP_TCB_UNLOCK(stcb);
 237                 return;
 238         }
 239         /* First job is to verify the vtag matches what I would send */
 240         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 241                 SCTP_TCB_UNLOCK(stcb);
 242                 return;
 243         }
 244         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 245             sizeof(struct ip)));
 246         if (icmph->icmp_type != ICMP_UNREACH) {
 247                 /* We only care about unreachable */
 248                 SCTP_TCB_UNLOCK(stcb);
 249                 return;
 250         }
 251         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 252             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 253             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 254             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 255             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 256             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 257             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 258             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 259
 260                 /*
 261                  * Hmm reachablity problems we must examine closely. If its
 262                  * not reachable, we may have lost a network. Or if there is
 263                  * NO protocol at the other end named SCTP. well we consider
 264                  * it a OOTB abort.
 265                  */
 266                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 267                         /* Ok that destination is NOT reachable */
 268                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 269                         net->dest_state &= ~SCTP_ADDR_PF;
 270                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 271                             stcb, 0,
 272                             (void *)net, SCTP_SO_NOT_LOCKED);
 273                 }
 274                 SCTP_TCB_UNLOCK(stcb);
 275         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 276             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 277                 /*
 278                  * Here the peer is either playing tricks on us, including
 279                  * an address that belongs to someone who does not support
 280                  * SCTP OR was a userland implementation that shutdown and
 281                  * now is dead. In either case treat it like a OOTB abort
 282                  * with no TCB
 283                  */
 284                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 285 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 286                 so = SCTP_INP_SO(inp);
 287                 atomic_add_int(&stcb->asoc.refcnt, 1);
 288                 SCTP_TCB_UNLOCK(stcb);
 289                 SCTP_SOCKET_LOCK(so, 1);
 290                 SCTP_TCB_LOCK(stcb);
 291                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 292 #endif
 293                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 294 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 295                 SCTP_SOCKET_UNLOCK(so, 1);
 296                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 297 #endif
 298                 /* no need to unlock here, since the TCB is gone */
 299         } else {
 300                 SCTP_TCB_UNLOCK(stcb);
 301         }
 302 }
 303
 304 #endif
 305
 306 #ifdef INET
 307 void
 308 sctp_ctlinput(cmd, sa, vip)
 309         int cmd;
 310         struct sockaddr *sa;
 311         void *vip;
 312 {
 313         struct ip *ip = vip;
 314         struct sctphdr *sh;
 315         uint32_t vrf_id;
 316
 317         /* FIX, for non-bsd is this right? */
 318         vrf_id = SCTP_DEFAULT_VRFID;
 319         if (sa->sa_family != AF_INET ||
 320             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 321                 return;
 322         }
 323         if (PRC_IS_REDIRECT(cmd)) {
 324                 ip = 0;
 325         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 326                 return;
 327         }
 328         if (ip) {
 329                 struct sctp_inpcb *inp = NULL;
 330                 struct sctp_tcb *stcb = NULL;
 331                 struct sctp_nets *net = NULL;
 332                 struct sockaddr_in to, from;
 333
 334                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 335                 bzero(&to, sizeof(to));
 336                 bzero(&from, sizeof(from));
 337                 from.sin_family = to.sin_family = AF_INET;
 338                 from.sin_len = to.sin_len = sizeof(to);
 339                 from.sin_port = sh->src_port;
 340                 from.sin_addr = ip->ip_src;
 341                 to.sin_port = sh->dest_port;
 342                 to.sin_addr = ip->ip_dst;
 343
 344                 /*
 345                  * 'to' holds the dest of the packet that failed to be sent.
 346                  * 'from' holds our local endpoint address. Thus we reverse
 347                  * the to and the from in the lookup.
 348                  */
 349                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 350                     (struct sockaddr *)&from,
 351                     &inp, &net, 1, vrf_id);
 352                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 353                         if (cmd != PRC_MSGSIZE) {
 354                                 sctp_notify(inp, ip, sh,
 355                                     (struct sockaddr *)&to, stcb,
 356                                     net);
 357                         } else {
 358                                 /* handle possible ICMP size messages */
 359                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 360                         }
 361                 } else {
 362                         if ((stcb == NULL) && (inp != NULL)) {
 363                                 /* reduce ref-count */
 364                                 SCTP_INP_WLOCK(inp);
 365                                 SCTP_INP_DECR_REF(inp);
 366                                 SCTP_INP_WUNLOCK(inp);
 367                         }
 368                         if (stcb) {
 369                                 SCTP_TCB_UNLOCK(stcb);
 370                         }
 371                 }
 372         }
 373         return;
 374 }
 375
 376 #endif
 377
 378 static int
 379 sctp_getcred(SYSCTL_HANDLER_ARGS)
 380 {
 381         struct xucred xuc;
 382         struct sockaddr_in addrs[2];
 383         struct sctp_inpcb *inp;
 384         struct sctp_nets *net;
 385         struct sctp_tcb *stcb;
 386         int error;
 387         uint32_t vrf_id;
 388
 389         /* FIX, for non-bsd is this right? */
 390         vrf_id = SCTP_DEFAULT_VRFID;
 391
 392         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 393
 394         if (error)
 395                 return (error);
 396
 397         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 398         if (error)
 399                 return (error);
 400
 401         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 402             sintosa(&addrs[0]),
 403             &inp, &net, 1, vrf_id);
 404         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 405                 if ((inp != NULL) && (stcb == NULL)) {
 406                         /* reduce ref-count */
 407                         SCTP_INP_WLOCK(inp);
 408                         SCTP_INP_DECR_REF(inp);
 409                         goto cred_can_cont;
 410                 }
 411                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 412                 error = ENOENT;
 413                 goto out;
 414         }
 415         SCTP_TCB_UNLOCK(stcb);
 416         /*
 417          * We use the write lock here, only since in the error leg we need
 418          * it. If we used RLOCK, then we would have to
 419          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 420          * Better to use higher wlock.
 421          */
 422         SCTP_INP_WLOCK(inp);
 423 cred_can_cont:
 424         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 425         if (error) {
 426                 SCTP_INP_WUNLOCK(inp);
 427                 goto out;
 428         }
 429         cru2x(inp->sctp_socket->so_cred, &xuc);
 430         SCTP_INP_WUNLOCK(inp);
 431         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 432 out:
 433         return (error);
 434 }
 435
 436 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 437     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 438
 439
 440 #ifdef INET
 441 static void
 442 sctp_abort(struct socket *so)
 443 {
 444         struct sctp_inpcb *inp;
 445         uint32_t flags;
 446
 447         inp = (struct sctp_inpcb *)so->so_pcb;
 448         if (inp == NULL) {
 449                 return;
 450         }
 451 sctp_must_try_again:
 452         flags = inp->sctp_flags;
 453 #ifdef SCTP_LOG_CLOSING
 454         sctp_log_closing(inp, NULL, 17);
 455 #endif
 456         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 457             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 458 #ifdef SCTP_LOG_CLOSING
 459                 sctp_log_closing(inp, NULL, 16);
 460 #endif
 461                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 462                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 463                 SOCK_LOCK(so);
 464                 SCTP_SB_CLEAR(so->so_snd);
 465                 /*
 466                  * same for the rcv ones, they are only here for the
 467                  * accounting/select.
 468                  */
 469                 SCTP_SB_CLEAR(so->so_rcv);
 470
 471                 /* Now null out the reference, we are completely detached. */
 472                 so->so_pcb = NULL;
 473                 SOCK_UNLOCK(so);
 474         } else {
 475                 flags = inp->sctp_flags;
 476                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 477                         goto sctp_must_try_again;
 478                 }
 479         }
 480         return;
 481 }
 482
 483 static int
 484 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 485 {
 486         struct sctp_inpcb *inp;
 487         struct inpcb *ip_inp;
 488         int error;
 489         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 490
 491 #ifdef IPSEC
 492         uint32_t flags;
 493
 494 #endif
 495
 496         inp = (struct sctp_inpcb *)so->so_pcb;
 497         if (inp != 0) {
 498                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 499                 return (EINVAL);
 500         }
 501         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 502                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 503                 if (error) {
 504                         return (error);
 505                 }
 506         }
 507         error = sctp_inpcb_alloc(so, vrf_id);
 508         if (error) {
 509                 return (error);
 510         }
 511         inp = (struct sctp_inpcb *)so->so_pcb;
 512         SCTP_INP_WLOCK(inp);
 513         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 514         ip_inp = &inp->ip_inp.inp;
 515         ip_inp->inp_vflag |= INP_IPV4;
 516         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 517 #ifdef IPSEC
 518         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 519 #ifdef SCTP_LOG_CLOSING
 520         sctp_log_closing(inp, NULL, 17);
 521 #endif
 522         if (error != 0) {
 523 try_again:
 524                 flags = inp->sctp_flags;
 525                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 526                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 527 #ifdef SCTP_LOG_CLOSING
 528                         sctp_log_closing(inp, NULL, 15);
 529 #endif
 530                         SCTP_INP_WUNLOCK(inp);
 531                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 532                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 533                 } else {
 534                         flags = inp->sctp_flags;
 535                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 536                                 goto try_again;
 537                         } else {
 538                                 SCTP_INP_WUNLOCK(inp);
 539                         }
 540                 }
 541                 return (error);
 542         }
 543 #endif                          /* IPSEC */
 544         SCTP_INP_WUNLOCK(inp);
 545         return (0);
 546 }
 547
 548 static int
 549 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 550 {
 551         struct sctp_inpcb *inp;
 552
 553         inp = (struct sctp_inpcb *)so->so_pcb;
 554         if (inp == NULL) {
 555                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 556                 return (EINVAL);
 557         }
 558         if (addr != NULL) {
 559                 if ((addr->sa_family != AF_INET) ||
 560                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 561                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 562                         return (EINVAL);
 563                 }
 564         }
 565         return (sctp_inpcb_bind(so, addr, NULL, p));
 566 }
 567
 568 #endif
 569 void
 570 sctp_close(struct socket *so)
 571 {
 572         struct sctp_inpcb *inp;
 573         uint32_t flags;
 574
 575         inp = (struct sctp_inpcb *)so->so_pcb;
 576         if (inp == NULL)
 577                 return;
 578
 579         /*
 580          * Inform all the lower layer assoc that we are done.
 581          */
 582 sctp_must_try_again:
 583         flags = inp->sctp_flags;
 584 #ifdef SCTP_LOG_CLOSING
 585         sctp_log_closing(inp, NULL, 17);
 586 #endif
 587         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 588             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 589                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 590                     (so->so_rcv.sb_cc > 0)) {
 591 #ifdef SCTP_LOG_CLOSING
 592                         sctp_log_closing(inp, NULL, 13);
 593 #endif
 594                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 595                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 596                 } else {
 597 #ifdef SCTP_LOG_CLOSING
 598                         sctp_log_closing(inp, NULL, 14);
 599 #endif
 600                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 601                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 602                 }
 603                 /*
 604                  * The socket is now detached, no matter what the state of
 605                  * the SCTP association.
 606                  */
 607                 SOCK_LOCK(so);
 608                 SCTP_SB_CLEAR(so->so_snd);
 609                 /*
 610                  * same for the rcv ones, they are only here for the
 611                  * accounting/select.
 612                  */
 613                 SCTP_SB_CLEAR(so->so_rcv);
 614
 615                 /* Now null out the reference, we are completely detached. */
 616                 so->so_pcb = NULL;
 617                 SOCK_UNLOCK(so);
 618         } else {
 619                 flags = inp->sctp_flags;
 620                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 621                         goto sctp_must_try_again;
 622                 }
 623         }
 624         return;
 625 }
 626
 627
 628 int
 629 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 630     struct mbuf *control, struct thread *p);
 631
 632
 633 int
 634 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 635     struct mbuf *control, struct thread *p)
 636 {
 637         struct sctp_inpcb *inp;
 638         int error;
 639
 640         inp = (struct sctp_inpcb *)so->so_pcb;
 641         if (inp == NULL) {
 642                 if (control) {
 643                         sctp_m_freem(control);
 644                         control = NULL;
 645                 }
 646                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 647                 sctp_m_freem(m);
 648                 return (EINVAL);
 649         }
 650         /* Got to have an to address if we are NOT a connected socket */
 651         if ((addr == NULL) &&
 652             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 653             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 654                 goto connected_type;
 655         } else if (addr == NULL) {
 656                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 657                 error = EDESTADDRREQ;
 658                 sctp_m_freem(m);
 659                 if (control) {
 660                         sctp_m_freem(control);
 661                         control = NULL;
 662                 }
 663                 return (error);
 664         }
 665 #ifdef INET6
 666         if (addr->sa_family != AF_INET) {
 667                 /* must be a v4 address! */
 668                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 669                 sctp_m_freem(m);
 670                 if (control) {
 671                         sctp_m_freem(control);
 672                         control = NULL;
 673                 }
 674                 error = EDESTADDRREQ;
 675                 return (error);
 676         }
 677 #endif                          /* INET6 */
 678 connected_type:
 679         /* now what about control */
 680         if (control) {
 681                 if (inp->control) {
 682                         SCTP_PRINTF("huh? control set?\n");
 683                         sctp_m_freem(inp->control);
 684                         inp->control = NULL;
 685                 }
 686                 inp->control = control;
 687         }
 688         /* Place the data */
 689         if (inp->pkt) {
 690                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 691                 inp->pkt_last = m;
 692         } else {
 693                 inp->pkt_last = inp->pkt = m;
 694         }
 695         if (
 696         /* FreeBSD uses a flag passed */
 697             ((flags & PRUS_MORETOCOME) == 0)
 698             ) {
 699                 /*
 700                  * note with the current version this code will only be used
 701                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 702                  * re-defining sosend to use the sctp_sosend. One can
 703                  * optionally switch back to this code (by changing back the
 704                  * definitions) but this is not advisable. This code is used
 705                  * by FreeBSD when sending a file with sendfile() though.
 706                  */
 707                 int ret;
 708
 709                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 710                 inp->pkt = NULL;
 711                 inp->control = NULL;
 712                 return (ret);
 713         } else {
 714                 return (0);
 715         }
 716 }
 717
 718 int
 719 sctp_disconnect(struct socket *so)
 720 {
 721         struct sctp_inpcb *inp;
 722
 723         inp = (struct sctp_inpcb *)so->so_pcb;
 724         if (inp == NULL) {
 725                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 726                 return (ENOTCONN);
 727         }
 728         SCTP_INP_RLOCK(inp);
 729         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 730             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 731                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 732                         /* No connection */
 733                         SCTP_INP_RUNLOCK(inp);
 734                         return (0);
 735                 } else {
 736                         struct sctp_association *asoc;
 737                         struct sctp_tcb *stcb;
 738
 739                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 740                         if (stcb == NULL) {
 741                                 SCTP_INP_RUNLOCK(inp);
 742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 743                                 return (EINVAL);
 744                         }
 745                         SCTP_TCB_LOCK(stcb);
 746                         asoc = &stcb->asoc;
 747                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 748                                 /* We are about to be freed, out of here */
 749                                 SCTP_TCB_UNLOCK(stcb);
 750                                 SCTP_INP_RUNLOCK(inp);
 751                                 return (0);
 752                         }
 753                         if (((so->so_options & SO_LINGER) &&
 754                             (so->so_linger == 0)) ||
 755                             (so->so_rcv.sb_cc > 0)) {
 756                                 if (SCTP_GET_STATE(asoc) !=
 757                                     SCTP_STATE_COOKIE_WAIT) {
 758                                         /* Left with Data unread */
 759                                         struct mbuf *err;
 760
 761                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 762                                         if (err) {
 763                                                 /*
 764                                                  * Fill in the user
 765                                                  * initiated abort
 766                                                  */
 767                                                 struct sctp_paramhdr *ph;
 768
 769                                                 ph = mtod(err, struct sctp_paramhdr *);
 770                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 771                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 772                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 773                                         }
 774                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 775                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 776                                 }
 777                                 SCTP_INP_RUNLOCK(inp);
 778                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 779                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 780                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 781                                 }
 782                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 783                                 /* No unlock tcb assoc is gone */
 784                                 return (0);
 785                         }
 786                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 787                             TAILQ_EMPTY(&asoc->sent_queue) &&
 788                             (asoc->stream_queue_cnt == 0)) {
 789                                 /* there is nothing queued to send, so done */
 790                                 if (asoc->locked_on_sending) {
 791                                         goto abort_anyway;
 792                                 }
 793                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 794                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 795                                         /* only send SHUTDOWN 1st time thru */
 796                                         struct sctp_nets *netp;
 797
 798                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 799                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 800                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 801                                         }
 802                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 803                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 804                                         sctp_stop_timers_for_shutdown(stcb);
 805                                         if (stcb->asoc.alternate) {
 806                                                 netp = stcb->asoc.alternate;
 807                                         } else {
 808                                                 netp = stcb->asoc.primary_destination;
 809                                         }
 810                                         sctp_send_shutdown(stcb, netp);
 811                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 812                                             stcb->sctp_ep, stcb, netp);
 813                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 814                                             stcb->sctp_ep, stcb, netp);
 815                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 816                                 }
 817                         } else {
 818                                 /*
 819                                  * we still got (or just got) data to send,
 820                                  * so set SHUTDOWN_PENDING
 821                                  */
 822                                 /*
 823                                  * XXX sockets draft says that SCTP_EOF
 824                                  * should be sent with no data. currently,
 825                                  * we will allow user data to be sent first
 826                                  * and move to SHUTDOWN-PENDING
 827                                  */
 828                                 struct sctp_nets *netp;
 829
 830                                 if (stcb->asoc.alternate) {
 831                                         netp = stcb->asoc.alternate;
 832                                 } else {
 833                                         netp = stcb->asoc.primary_destination;
 834                                 }
 835
 836                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 837                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 838                                     netp);
 839                                 if (asoc->locked_on_sending) {
 840                                         /* Locked to send out the data */
 841                                         struct sctp_stream_queue_pending *sp;
 842
 843                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 844                                         if (sp == NULL) {
 845                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 846                                                     asoc->locked_on_sending->stream_no);
 847                                         } else {
 848                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 849                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 850                                         }
 851                                 }
 852                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 853                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 854                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 855                                         struct mbuf *op_err;
 856
 857                         abort_anyway:
 858                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 859                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 860                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 861                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 862                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 863                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 864                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 865                                         }
 866                                         SCTP_INP_RUNLOCK(inp);
 867                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 868                                         return (0);
 869                                 } else {
 870                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 871                                 }
 872                         }
 873                         soisdisconnecting(so);
 874                         SCTP_TCB_UNLOCK(stcb);
 875                         SCTP_INP_RUNLOCK(inp);
 876                         return (0);
 877                 }
 878                 /* not reached */
 879         } else {
 880                 /* UDP model does not support this */
 881                 SCTP_INP_RUNLOCK(inp);
 882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 883                 return (EOPNOTSUPP);
 884         }
 885 }
 886
 887 int
 888 sctp_flush(struct socket *so, int how)
 889 {
 890         /*
 891          * We will just clear out the values and let subsequent close clear
 892          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 893          * they will not be able to read the data, the socket will block
 894          * that from happening.
 895          */
 896         struct sctp_inpcb *inp;
 897
 898         inp = (struct sctp_inpcb *)so->so_pcb;
 899         if (inp == NULL) {
 900                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 901                 return (EINVAL);
 902         }
 903         SCTP_INP_RLOCK(inp);
 904         /* For the 1 to many model this does nothing */
 905         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 906                 SCTP_INP_RUNLOCK(inp);
 907                 return (0);
 908         }
 909         SCTP_INP_RUNLOCK(inp);
 910         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 911                 /*
 912                  * First make sure the sb will be happy, we don't use these
 913                  * except maybe the count
 914                  */
 915                 SCTP_INP_WLOCK(inp);
 916                 SCTP_INP_READ_LOCK(inp);
 917                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 918                 SCTP_INP_READ_UNLOCK(inp);
 919                 SCTP_INP_WUNLOCK(inp);
 920                 so->so_rcv.sb_cc = 0;
 921                 so->so_rcv.sb_mbcnt = 0;
 922                 so->so_rcv.sb_mb = NULL;
 923         }
 924         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 925                 /*
 926                  * First make sure the sb will be happy, we don't use these
 927                  * except maybe the count
 928                  */
 929                 so->so_snd.sb_cc = 0;
 930                 so->so_snd.sb_mbcnt = 0;
 931                 so->so_snd.sb_mb = NULL;
 932
 933         }
 934         return (0);
 935 }
 936
 937 int
 938 sctp_shutdown(struct socket *so)
 939 {
 940         struct sctp_inpcb *inp;
 941
 942         inp = (struct sctp_inpcb *)so->so_pcb;
 943         if (inp == NULL) {
 944                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 945                 return (EINVAL);
 946         }
 947         SCTP_INP_RLOCK(inp);
 948         /* For UDP model this is a invalid call */
 949         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 950             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 951                 /* Restore the flags that the soshutdown took away. */
 952                 SOCKBUF_LOCK(&so->so_rcv);
 953                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 954                 SOCKBUF_UNLOCK(&so->so_rcv);
 955                 /* This proc will wakeup for read and do nothing (I hope) */
 956                 SCTP_INP_RUNLOCK(inp);
 957                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 958                 return (EOPNOTSUPP);
 959         }
 960         /*
 961          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 962          * or SHUT_RDWR. This means we put the shutdown flag against it.
 963          */
 964         {
 965                 struct sctp_tcb *stcb;
 966                 struct sctp_association *asoc;
 967
 968                 if ((so->so_state &
 969                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 970                         SCTP_INP_RUNLOCK(inp);
 971                         return (ENOTCONN);
 972                 }
 973                 socantsendmore(so);
 974
 975                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 976                 if (stcb == NULL) {
 977                         /*
 978                          * Ok we hit the case that the shutdown call was
 979                          * made after an abort or something. Nothing to do
 980                          * now.
 981                          */
 982                         SCTP_INP_RUNLOCK(inp);
 983                         return (0);
 984                 }
 985                 SCTP_TCB_LOCK(stcb);
 986                 asoc = &stcb->asoc;
 987                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 988                     TAILQ_EMPTY(&asoc->sent_queue) &&
 989                     (asoc->stream_queue_cnt == 0)) {
 990                         if (asoc->locked_on_sending) {
 991                                 goto abort_anyway;
 992                         }
 993                         /* there is nothing queued to send, so I'm done... */
 994                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 995                                 /* only send SHUTDOWN the first time through */
 996                                 struct sctp_nets *netp;
 997
 998                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 999                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1000                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1001                                 }
1002                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1003                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1004                                 sctp_stop_timers_for_shutdown(stcb);
1005                                 if (stcb->asoc.alternate) {
1006                                         netp = stcb->asoc.alternate;
1007                                 } else {
1008                                         netp = stcb->asoc.primary_destination;
1009                                 }
1010                                 sctp_send_shutdown(stcb, netp);
1011                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1012                                     stcb->sctp_ep, stcb, netp);
1013                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1014                                     stcb->sctp_ep, stcb, netp);
1015                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1016                         }
1017                 } else {
1018                         /*
1019                          * we still got (or just got) data to send, so set
1020                          * SHUTDOWN_PENDING
1021                          */
1022                         struct sctp_nets *netp;
1023
1024                         if (stcb->asoc.alternate) {
1025                                 netp = stcb->asoc.alternate;
1026                         } else {
1027                                 netp = stcb->asoc.primary_destination;
1028                         }
1029
1030                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1031                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1032                             netp);
1033
1034                         if (asoc->locked_on_sending) {
1035                                 /* Locked to send out the data */
1036                                 struct sctp_stream_queue_pending *sp;
1037
1038                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1039                                 if (sp == NULL) {
1040                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1041                                             asoc->locked_on_sending->stream_no);
1042                                 } else {
1043                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1044                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1045                                         }
1046                                 }
1047                         }
1048                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1049                             TAILQ_EMPTY(&asoc->sent_queue) &&
1050                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1051                                 struct mbuf *op_err;
1052
1053                 abort_anyway:
1054                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1055                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1056                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1057                                     op_err, SCTP_SO_LOCKED);
1058                                 goto skip_unlock;
1059                         } else {
1060                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1061                         }
1062                 }
1063                 SCTP_TCB_UNLOCK(stcb);
1064         }
1065 skip_unlock:
1066         SCTP_INP_RUNLOCK(inp);
1067         return (0);
1068 }
1069
1070 /*
1071  * copies a "user" presentable address and removes embedded scope, etc.
1072  * returns 0 on success, 1 on error
1073  */
1074 static uint32_t
1075 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1076 {
1077 #ifdef INET6
1078         struct sockaddr_in6 lsa6;
1079
1080         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1081             &lsa6);
1082 #endif
1083         memcpy(ss, sa, sa->sa_len);
1084         return (0);
1085 }
1086
1087
1088
1089 /*
1090  * NOTE: assumes addr lock is held
1091  */
1092 static size_t
1093 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1094     struct sctp_tcb *stcb,
1095     size_t limit,
1096     struct sockaddr_storage *sas,
1097     uint32_t vrf_id)
1098 {
1099         struct sctp_ifn *sctp_ifn;
1100         struct sctp_ifa *sctp_ifa;
1101         size_t actual;
1102         int loopback_scope;
1103
1104 #if defined(INET)
1105         int ipv4_local_scope, ipv4_addr_legal;
1106
1107 #endif
1108 #if defined(INET6)
1109         int local_scope, site_scope, ipv6_addr_legal;
1110
1111 #endif
1112         struct sctp_vrf *vrf;
1113
1114         actual = 0;
1115         if (limit <= 0)
1116                 return (actual);
1117
1118         if (stcb) {
1119                 /* Turn on all the appropriate scope */
1120                 loopback_scope = stcb->asoc.scope.loopback_scope;
1121 #if defined(INET)
1122                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1123                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1124 #endif
1125 #if defined(INET6)
1126                 local_scope = stcb->asoc.scope.local_scope;
1127                 site_scope = stcb->asoc.scope.site_scope;
1128                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1129 #endif
1130         } else {
1131                 /* Use generic values for endpoints. */
1132                 loopback_scope = 1;
1133 #if defined(INET)
1134                 ipv4_local_scope = 1;
1135 #endif
1136 #if defined(INET6)
1137                 local_scope = 1;
1138                 site_scope = 1;
1139 #endif
1140                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1141 #if defined(INET6)
1142                         ipv6_addr_legal = 1;
1143 #endif
1144 #if defined(INET)
1145                         if (SCTP_IPV6_V6ONLY(inp)) {
1146                                 ipv4_addr_legal = 0;
1147                         } else {
1148                                 ipv4_addr_legal = 1;
1149                         }
1150 #endif
1151                 } else {
1152 #if defined(INET6)
1153                         ipv6_addr_legal = 0;
1154 #endif
1155 #if defined(INET)
1156                         ipv4_addr_legal = 1;
1157 #endif
1158                 }
1159         }
1160         vrf = sctp_find_vrf(vrf_id);
1161         if (vrf == NULL) {
1162                 return (0);
1163         }
1164         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1165                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1166                         if ((loopback_scope == 0) &&
1167                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1168                                 /* Skip loopback if loopback_scope not set */
1169                                 continue;
1170                         }
1171                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1172                                 if (stcb) {
1173                                         /*
1174                                          * For the BOUND-ALL case, the list
1175                                          * associated with a TCB is Always
1176                                          * considered a reverse list.. i.e.
1177                                          * it lists addresses that are NOT
1178                                          * part of the association. If this
1179                                          * is one of those we must skip it.
1180                                          */
1181                                         if (sctp_is_addr_restricted(stcb,
1182                                             sctp_ifa)) {
1183                                                 continue;
1184                                         }
1185                                 }
1186                                 switch (sctp_ifa->address.sa.sa_family) {
1187 #ifdef INET
1188                                 case AF_INET:
1189                                         if (ipv4_addr_legal) {
1190                                                 struct sockaddr_in *sin;
1191
1192                                                 sin = &sctp_ifa->address.sin;
1193                                                 if (sin->sin_addr.s_addr == 0) {
1194                                                         /*
1195                                                          * we skip
1196                                                          * unspecifed
1197                                                          * addresses
1198                                                          */
1199                                                         continue;
1200                                                 }
1201                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1202                                                     &sin->sin_addr) != 0) {
1203                                                         continue;
1204                                                 }
1205                                                 if ((ipv4_local_scope == 0) &&
1206                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1207                                                         continue;
1208                                                 }
1209 #ifdef INET6
1210                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1211                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1212                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1213                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1214                                                         actual += sizeof(struct sockaddr_in6);
1215                                                 } else {
1216 #endif
1217                                                         memcpy(sas, sin, sizeof(*sin));
1218                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1219                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1220                                                         actual += sizeof(*sin);
1221 #ifdef INET6
1222                                                 }
1223 #endif
1224                                                 if (actual >= limit) {
1225                                                         return (actual);
1226                                                 }
1227                                         } else {
1228                                                 continue;
1229                                         }
1230                                         break;
1231 #endif
1232 #ifdef INET6
1233                                 case AF_INET6:
1234                                         if (ipv6_addr_legal) {
1235                                                 struct sockaddr_in6 *sin6;
1236
1237                                                 sin6 = &sctp_ifa->address.sin6;
1238                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1239                                                         /*
1240                                                          * we skip
1241                                                          * unspecifed
1242                                                          * addresses
1243                                                          */
1244                                                         continue;
1245                                                 }
1246                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1247                                                     &sin6->sin6_addr) != 0) {
1248                                                         continue;
1249                                                 }
1250                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1251                                                         if (local_scope == 0)
1252                                                                 continue;
1253                                                         if (sin6->sin6_scope_id == 0) {
1254                                                                 if (sa6_recoverscope(sin6) != 0)
1255                                                                         /*
1256                                                                          *
1257                                                                          * bad
1258                                                                          *
1259                                                                          * li
1260                                                                          * nk
1261                                                                          *
1262                                                                          * loc
1263                                                                          * al
1264                                                                          *
1265                                                                          * add
1266                                                                          * re
1267                                                                          * ss
1268                                                                          * */
1269                                                                         continue;
1270                                                         }
1271                                                 }
1272                                                 if ((site_scope == 0) &&
1273                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1274                                                         continue;
1275                                                 }
1276                                                 memcpy(sas, sin6, sizeof(*sin6));
1277                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1278                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1279                                                 actual += sizeof(*sin6);
1280                                                 if (actual >= limit) {
1281                                                         return (actual);
1282                                                 }
1283                                         } else {
1284                                                 continue;
1285                                         }
1286                                         break;
1287 #endif
1288                                 default:
1289                                         /* TSNH */
1290                                         break;
1291                                 }
1292                         }
1293                 }
1294         } else {
1295                 struct sctp_laddr *laddr;
1296
1297                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1298                         if (stcb) {
1299                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1300                                         continue;
1301                                 }
1302                         }
1303                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1304                                 continue;
1305                         switch (laddr->ifa->address.sa.sa_family) {
1306 #ifdef INET
1307                         case AF_INET:
1308                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1309                                 break;
1310 #endif
1311 #ifdef INET6
1312                         case AF_INET6:
1313                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1314                                 break;
1315 #endif
1316                         default:
1317                                 /* TSNH */
1318                                 break;
1319                         }
1320                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1321                             laddr->ifa->address.sa.sa_len);
1322                         actual += laddr->ifa->address.sa.sa_len;
1323                         if (actual >= limit) {
1324                                 return (actual);
1325                         }
1326                 }
1327         }
1328         return (actual);
1329 }
1330
1331 static size_t
1332 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1333     struct sctp_tcb *stcb,
1334     size_t limit,
1335     struct sockaddr_storage *sas)
1336 {
1337         size_t size = 0;
1338
1339         SCTP_IPI_ADDR_RLOCK();
1340         /* fill up addresses for the endpoint's default vrf */
1341         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1342             inp->def_vrf_id);
1343         SCTP_IPI_ADDR_RUNLOCK();
1344         return (size);
1345 }
1346
1347 /*
1348  * NOTE: assumes addr lock is held
1349  */
1350 static int
1351 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1352 {
1353         int cnt = 0;
1354         struct sctp_vrf *vrf = NULL;
1355
1356         /*
1357          * In both sub-set bound an bound_all cases we return the MAXIMUM
1358          * number of addresses that you COULD get. In reality the sub-set
1359          * bound may have an exclusion list for a given TCB OR in the
1360          * bound-all case a TCB may NOT include the loopback or other
1361          * addresses as well.
1362          */
1363         vrf = sctp_find_vrf(vrf_id);
1364         if (vrf == NULL) {
1365                 return (0);
1366         }
1367         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1368                 struct sctp_ifn *sctp_ifn;
1369                 struct sctp_ifa *sctp_ifa;
1370
1371                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1372                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1373                                 /* Count them if they are the right type */
1374                                 switch (sctp_ifa->address.sa.sa_family) {
1375 #ifdef INET
1376                                 case AF_INET:
1377 #ifdef INET6
1378                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1379                                                 cnt += sizeof(struct sockaddr_in6);
1380                                         else
1381                                                 cnt += sizeof(struct sockaddr_in);
1382 #else
1383                                         cnt += sizeof(struct sockaddr_in);
1384 #endif
1385                                         break;
1386 #endif
1387 #ifdef INET6
1388                                 case AF_INET6:
1389                                         cnt += sizeof(struct sockaddr_in6);
1390                                         break;
1391 #endif
1392                                 default:
1393                                         break;
1394                                 }
1395                         }
1396                 }
1397         } else {
1398                 struct sctp_laddr *laddr;
1399
1400                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1401                         switch (laddr->ifa->address.sa.sa_family) {
1402 #ifdef INET
1403                         case AF_INET:
1404 #ifdef INET6
1405                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1406                                         cnt += sizeof(struct sockaddr_in6);
1407                                 else
1408                                         cnt += sizeof(struct sockaddr_in);
1409 #else
1410                                 cnt += sizeof(struct sockaddr_in);
1411 #endif
1412                                 break;
1413 #endif
1414 #ifdef INET6
1415                         case AF_INET6:
1416                                 cnt += sizeof(struct sockaddr_in6);
1417                                 break;
1418 #endif
1419                         default:
1420                                 break;
1421                         }
1422                 }
1423         }
1424         return (cnt);
1425 }
1426
1427 static int
1428 sctp_count_max_addresses(struct sctp_inpcb *inp)
1429 {
1430         int cnt = 0;
1431
1432         SCTP_IPI_ADDR_RLOCK();
1433         /* count addresses for the endpoint's default VRF */
1434         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1435         SCTP_IPI_ADDR_RUNLOCK();
1436         return (cnt);
1437 }
1438
1439 static int
1440 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1441     size_t optsize, void *p, int delay)
1442 {
1443         int error = 0;
1444         int creat_lock_on = 0;
1445         struct sctp_tcb *stcb = NULL;
1446         struct sockaddr *sa;
1447         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1448         uint32_t vrf_id;
1449         int bad_addresses = 0;
1450         sctp_assoc_t *a_id;
1451
1452         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1453
1454         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1455             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1456                 /* We are already connected AND the TCP model */
1457                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1458                 return (EADDRINUSE);
1459         }
1460         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1461             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1462                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1463                 return (EINVAL);
1464         }
1465         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1466                 SCTP_INP_RLOCK(inp);
1467                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1468                 SCTP_INP_RUNLOCK(inp);
1469         }
1470         if (stcb) {
1471                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1472                 return (EALREADY);
1473         }
1474         SCTP_INP_INCR_REF(inp);
1475         SCTP_ASOC_CREATE_LOCK(inp);
1476         creat_lock_on = 1;
1477         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1478             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1479                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1480                 error = EFAULT;
1481                 goto out_now;
1482         }
1483         totaddrp = (int *)optval;
1484         totaddr = *totaddrp;
1485         sa = (struct sockaddr *)(totaddrp + 1);
1486         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1487         if ((stcb != NULL) || bad_addresses) {
1488                 /* Already have or am bring up an association */
1489                 SCTP_ASOC_CREATE_UNLOCK(inp);
1490                 creat_lock_on = 0;
1491                 if (stcb)
1492                         SCTP_TCB_UNLOCK(stcb);
1493                 if (bad_addresses == 0) {
1494                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1495                         error = EALREADY;
1496                 }
1497                 goto out_now;
1498         }
1499 #ifdef INET6
1500         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1501             (num_v6 > 0)) {
1502                 error = EINVAL;
1503                 goto out_now;
1504         }
1505         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1506             (num_v4 > 0)) {
1507                 struct in6pcb *inp6;
1508
1509                 inp6 = (struct in6pcb *)inp;
1510                 if (SCTP_IPV6_V6ONLY(inp6)) {
1511                         /*
1512                          * if IPV6_V6ONLY flag, ignore connections destined
1513                          * to a v4 addr or v4-mapped addr
1514                          */
1515                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1516                         error = EINVAL;
1517                         goto out_now;
1518                 }
1519         }
1520 #endif                          /* INET6 */
1521         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1522             SCTP_PCB_FLAGS_UNBOUND) {
1523                 /* Bind a ephemeral port */
1524                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1525                 if (error) {
1526                         goto out_now;
1527                 }
1528         }
1529         /* FIX ME: do we want to pass in a vrf on the connect call? */
1530         vrf_id = inp->def_vrf_id;
1531
1532
1533         /* We are GOOD to go */
1534         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1535             (struct thread *)p
1536             );
1537         if (stcb == NULL) {
1538                 /* Gak! no memory */
1539                 goto out_now;
1540         }
1541         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1542                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1543                 /* Set the connected flag so we can queue data */
1544                 soisconnecting(so);
1545         }
1546         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1547         /* move to second address */
1548         switch (sa->sa_family) {
1549 #ifdef INET
1550         case AF_INET:
1551                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1552                 break;
1553 #endif
1554 #ifdef INET6
1555         case AF_INET6:
1556                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1557                 break;
1558 #endif
1559         default:
1560                 break;
1561         }
1562
1563         error = 0;
1564         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1565         /* Fill in the return id */
1566         if (error) {
1567                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1568                 goto out_now;
1569         }
1570         a_id = (sctp_assoc_t *) optval;
1571         *a_id = sctp_get_associd(stcb);
1572
1573         /* initialize authentication parameters for the assoc */
1574         sctp_initialize_auth_params(inp, stcb);
1575
1576         if (delay) {
1577                 /* doing delayed connection */
1578                 stcb->asoc.delayed_connection = 1;
1579                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1580         } else {
1581                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1582                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1583         }
1584         SCTP_TCB_UNLOCK(stcb);
1585         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1586                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1587                 /* Set the connected flag so we can queue data */
1588                 soisconnecting(so);
1589         }
1590 out_now:
1591         if (creat_lock_on) {
1592                 SCTP_ASOC_CREATE_UNLOCK(inp);
1593         }
1594         SCTP_INP_DECR_REF(inp);
1595         return (error);
1596 }
1597
1598 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1599         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1600             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1601                 SCTP_INP_RLOCK(inp); \
1602                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1603                 if (stcb) { \
1604                         SCTP_TCB_LOCK(stcb); \
1605                 } \
1606                 SCTP_INP_RUNLOCK(inp); \
1607         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1608                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1609                 if (stcb == NULL) { \
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1611                         error = ENOENT; \
1612                         break; \
1613                 } \
1614         } else { \
1615                 stcb = NULL; \
1616         } \
1617   }
1618
1619
1620 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1621         if (size < sizeof(type)) { \
1622                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1623                 error = EINVAL; \
1624                 break; \
1625         } else { \
1626                 destp = (type *)srcp; \
1627         } \
1628       }
1629
1630 static int
1631 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1632     void *p)
1633 {
1634         struct sctp_inpcb *inp = NULL;
1635         int error, val = 0;
1636         struct sctp_tcb *stcb = NULL;
1637
1638         if (optval == NULL) {
1639                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1640                 return (EINVAL);
1641         }
1642         inp = (struct sctp_inpcb *)so->so_pcb;
1643         if (inp == NULL) {
1644                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1645                 return EINVAL;
1646         }
1647         error = 0;
1648
1649         switch (optname) {
1650         case SCTP_NODELAY:
1651         case SCTP_AUTOCLOSE:
1652         case SCTP_EXPLICIT_EOR:
1653         case SCTP_AUTO_ASCONF:
1654         case SCTP_DISABLE_FRAGMENTS:
1655         case SCTP_I_WANT_MAPPED_V4_ADDR:
1656         case SCTP_USE_EXT_RCVINFO:
1657                 SCTP_INP_RLOCK(inp);
1658                 switch (optname) {
1659                 case SCTP_DISABLE_FRAGMENTS:
1660                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1661                         break;
1662                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1663                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1664                         break;
1665                 case SCTP_AUTO_ASCONF:
1666                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1667                                 /* only valid for bound all sockets */
1668                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1669                         } else {
1670                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1671                                 error = EINVAL;
1672                                 goto flags_out;
1673                         }
1674                         break;
1675                 case SCTP_EXPLICIT_EOR:
1676                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1677                         break;
1678                 case SCTP_NODELAY:
1679                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1680                         break;
1681                 case SCTP_USE_EXT_RCVINFO:
1682                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1683                         break;
1684                 case SCTP_AUTOCLOSE:
1685                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1686                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1687                         else
1688                                 val = 0;
1689                         break;
1690
1691                 default:
1692                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1693                         error = ENOPROTOOPT;
1694                 }               /* end switch (sopt->sopt_name) */
1695                 if (*optsize < sizeof(val)) {
1696                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1697                         error = EINVAL;
1698                 }
1699 flags_out:
1700                 SCTP_INP_RUNLOCK(inp);
1701                 if (error == 0) {
1702                         /* return the option value */
1703                         *(int *)optval = val;
1704                         *optsize = sizeof(val);
1705                 }
1706                 break;
1707         case SCTP_GET_PACKET_LOG:
1708                 {
1709 #ifdef  SCTP_PACKET_LOGGING
1710                         uint8_t *target;
1711                         int ret;
1712
1713                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1714                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1715                         *optsize = ret;
1716 #else
1717                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1718                         error = EOPNOTSUPP;
1719 #endif
1720                         break;
1721                 }
1722         case SCTP_REUSE_PORT:
1723                 {
1724                         uint32_t *value;
1725
1726                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1727                                 /* Can't do this for a 1-m socket */
1728                                 error = EINVAL;
1729                                 break;
1730                         }
1731                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1732                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1733                         *optsize = sizeof(uint32_t);
1734                         break;
1735                 }
1736         case SCTP_PARTIAL_DELIVERY_POINT:
1737                 {
1738                         uint32_t *value;
1739
1740                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1741                         *value = inp->partial_delivery_point;
1742                         *optsize = sizeof(uint32_t);
1743                         break;
1744                 }
1745         case SCTP_FRAGMENT_INTERLEAVE:
1746                 {
1747                         uint32_t *value;
1748
1749                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1750                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1751                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1752                                         *value = SCTP_FRAG_LEVEL_2;
1753                                 } else {
1754                                         *value = SCTP_FRAG_LEVEL_1;
1755                                 }
1756                         } else {
1757                                 *value = SCTP_FRAG_LEVEL_0;
1758                         }
1759                         *optsize = sizeof(uint32_t);
1760                         break;
1761                 }
1762         case SCTP_CMT_ON_OFF:
1763                 {
1764                         struct sctp_assoc_value *av;
1765
1766                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1767                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1768                         if (stcb) {
1769                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1770                                 SCTP_TCB_UNLOCK(stcb);
1771                         } else {
1772                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1773                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1774                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1775                                         SCTP_INP_RLOCK(inp);
1776                                         av->assoc_value = inp->sctp_cmt_on_off;
1777                                         SCTP_INP_RUNLOCK(inp);
1778                                 } else {
1779                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1780                                         error = EINVAL;
1781                                 }
1782                         }
1783                         if (error == 0) {
1784                                 *optsize = sizeof(struct sctp_assoc_value);
1785                         }
1786                         break;
1787                 }
1788         case SCTP_PLUGGABLE_CC:
1789                 {
1790                         struct sctp_assoc_value *av;
1791
1792                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1793                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1794                         if (stcb) {
1795                                 av->assoc_value = stcb->asoc.congestion_control_module;
1796                                 SCTP_TCB_UNLOCK(stcb);
1797                         } else {
1798                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1799                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1800                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1801                                         SCTP_INP_RLOCK(inp);
1802                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1803                                         SCTP_INP_RUNLOCK(inp);
1804                                 } else {
1805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1806                                         error = EINVAL;
1807                                 }
1808                         }
1809                         if (error == 0) {
1810                                 *optsize = sizeof(struct sctp_assoc_value);
1811                         }
1812                         break;
1813                 }
1814         case SCTP_CC_OPTION:
1815                 {
1816                         struct sctp_cc_option *cc_opt;
1817
1818                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1819                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1820                         if (stcb == NULL) {
1821                                 error = EINVAL;
1822                         } else {
1823                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1824                                         error = ENOTSUP;
1825                                 } else {
1826                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1827                                         *optsize = sizeof(struct sctp_cc_option);
1828                                 }
1829                                 SCTP_TCB_UNLOCK(stcb);
1830                         }
1831                         break;
1832                 }
1833         case SCTP_PLUGGABLE_SS:
1834                 {
1835                         struct sctp_assoc_value *av;
1836
1837                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1838                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1839                         if (stcb) {
1840                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1841                                 SCTP_TCB_UNLOCK(stcb);
1842                         } else {
1843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1845                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1846                                         SCTP_INP_RLOCK(inp);
1847                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1848                                         SCTP_INP_RUNLOCK(inp);
1849                                 } else {
1850                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1851                                         error = EINVAL;
1852                                 }
1853                         }
1854                         if (error == 0) {
1855                                 *optsize = sizeof(struct sctp_assoc_value);
1856                         }
1857                         break;
1858                 }
1859         case SCTP_SS_VALUE:
1860                 {
1861                         struct sctp_stream_value *av;
1862
1863                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1864                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1865                         if (stcb) {
1866                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1867                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1868                                     &av->stream_value) < 0)) {
1869                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1870                                         error = EINVAL;
1871                                 } else {
1872                                         *optsize = sizeof(struct sctp_stream_value);
1873                                 }
1874                                 SCTP_TCB_UNLOCK(stcb);
1875                         } else {
1876                                 /*
1877                                  * Can't get stream value without
1878                                  * association
1879                                  */
1880                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1881                                 error = EINVAL;
1882                         }
1883                         break;
1884                 }
1885         case SCTP_GET_ADDR_LEN:
1886                 {
1887                         struct sctp_assoc_value *av;
1888
1889                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1890                         error = EINVAL;
1891 #ifdef INET
1892                         if (av->assoc_value == AF_INET) {
1893                                 av->assoc_value = sizeof(struct sockaddr_in);
1894                                 error = 0;
1895                         }
1896 #endif
1897 #ifdef INET6
1898                         if (av->assoc_value == AF_INET6) {
1899                                 av->assoc_value = sizeof(struct sockaddr_in6);
1900                                 error = 0;
1901                         }
1902 #endif
1903                         if (error) {
1904                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1905                         } else {
1906                                 *optsize = sizeof(struct sctp_assoc_value);
1907                         }
1908                         break;
1909                 }
1910         case SCTP_GET_ASSOC_NUMBER:
1911                 {
1912                         uint32_t *value, cnt;
1913
1914                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1915                         cnt = 0;
1916                         SCTP_INP_RLOCK(inp);
1917                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1918                                 cnt++;
1919                         }
1920                         SCTP_INP_RUNLOCK(inp);
1921                         *value = cnt;
1922                         *optsize = sizeof(uint32_t);
1923                         break;
1924                 }
1925         case SCTP_GET_ASSOC_ID_LIST:
1926                 {
1927                         struct sctp_assoc_ids *ids;
1928                         unsigned int at, limit;
1929
1930                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1931                         at = 0;
1932                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1933                         SCTP_INP_RLOCK(inp);
1934                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1935                                 if (at < limit) {
1936                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1937                                 } else {
1938                                         error = EINVAL;
1939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1940                                         break;
1941                                 }
1942                         }
1943                         SCTP_INP_RUNLOCK(inp);
1944                         if (error == 0) {
1945                                 ids->gaids_number_of_ids = at;
1946                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1947                         }
1948                         break;
1949                 }
1950         case SCTP_CONTEXT:
1951                 {
1952                         struct sctp_assoc_value *av;
1953
1954                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1955                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1956
1957                         if (stcb) {
1958                                 av->assoc_value = stcb->asoc.context;
1959                                 SCTP_TCB_UNLOCK(stcb);
1960                         } else {
1961                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1962                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1963                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1964                                         SCTP_INP_RLOCK(inp);
1965                                         av->assoc_value = inp->sctp_context;
1966                                         SCTP_INP_RUNLOCK(inp);
1967                                 } else {
1968                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1969                                         error = EINVAL;
1970                                 }
1971                         }
1972                         if (error == 0) {
1973                                 *optsize = sizeof(struct sctp_assoc_value);
1974                         }
1975                         break;
1976                 }
1977         case SCTP_VRF_ID:
1978                 {
1979                         uint32_t *default_vrfid;
1980
1981                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1982                         *default_vrfid = inp->def_vrf_id;
1983                         *optsize = sizeof(uint32_t);
1984                         break;
1985                 }
1986         case SCTP_GET_ASOC_VRF:
1987                 {
1988                         struct sctp_assoc_value *id;
1989
1990                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1991                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1992                         if (stcb == NULL) {
1993                                 error = EINVAL;
1994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1995                         } else {
1996                                 id->assoc_value = stcb->asoc.vrf_id;
1997                                 *optsize = sizeof(struct sctp_assoc_value);
1998                         }
1999                         break;
2000                 }
2001         case SCTP_GET_VRF_IDS:
2002                 {
2003                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2004                         error = EOPNOTSUPP;
2005                         break;
2006                 }
2007         case SCTP_GET_NONCE_VALUES:
2008                 {
2009                         struct sctp_get_nonce_values *gnv;
2010
2011                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2012                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2013
2014                         if (stcb) {
2015                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2016                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2017                                 SCTP_TCB_UNLOCK(stcb);
2018                                 *optsize = sizeof(struct sctp_get_nonce_values);
2019                         } else {
2020                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2021                                 error = ENOTCONN;
2022                         }
2023                         break;
2024                 }
2025         case SCTP_DELAYED_SACK:
2026                 {
2027                         struct sctp_sack_info *sack;
2028
2029                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2030                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2031                         if (stcb) {
2032                                 sack->sack_delay = stcb->asoc.delayed_ack;
2033                                 sack->sack_freq = stcb->asoc.sack_freq;
2034                                 SCTP_TCB_UNLOCK(stcb);
2035                         } else {
2036                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2037                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2038                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2039                                         SCTP_INP_RLOCK(inp);
2040                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2041                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2042                                         SCTP_INP_RUNLOCK(inp);
2043                                 } else {
2044                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2045                                         error = EINVAL;
2046                                 }
2047                         }
2048                         if (error == 0) {
2049                                 *optsize = sizeof(struct sctp_sack_info);
2050                         }
2051                         break;
2052                 }
2053         case SCTP_GET_SNDBUF_USE:
2054                 {
2055                         struct sctp_sockstat *ss;
2056
2057                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2058                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2059
2060                         if (stcb) {
2061                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2062                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2063                                     stcb->asoc.size_on_all_streams);
2064                                 SCTP_TCB_UNLOCK(stcb);
2065                                 *optsize = sizeof(struct sctp_sockstat);
2066                         } else {
2067                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2068                                 error = ENOTCONN;
2069                         }
2070                         break;
2071                 }
2072         case SCTP_MAX_BURST:
2073                 {
2074                         struct sctp_assoc_value *av;
2075
2076                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2077                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2078
2079                         if (stcb) {
2080                                 av->assoc_value = stcb->asoc.max_burst;
2081                                 SCTP_TCB_UNLOCK(stcb);
2082                         } else {
2083                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2084                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2085                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2086                                         SCTP_INP_RLOCK(inp);
2087                                         av->assoc_value = inp->sctp_ep.max_burst;
2088                                         SCTP_INP_RUNLOCK(inp);
2089                                 } else {
2090                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2091                                         error = EINVAL;
2092                                 }
2093                         }
2094                         if (error == 0) {
2095                                 *optsize = sizeof(struct sctp_assoc_value);
2096                         }
2097                         break;
2098                 }
2099         case SCTP_MAXSEG:
2100                 {
2101                         struct sctp_assoc_value *av;
2102                         int ovh;
2103
2104                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2105                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2106
2107                         if (stcb) {
2108                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2109                                 SCTP_TCB_UNLOCK(stcb);
2110                         } else {
2111                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2112                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2113                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2114                                         SCTP_INP_RLOCK(inp);
2115                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2116                                                 ovh = SCTP_MED_OVERHEAD;
2117                                         } else {
2118                                                 ovh = SCTP_MED_V4_OVERHEAD;
2119                                         }
2120                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2121                                                 av->assoc_value = 0;
2122                                         else
2123                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2124                                         SCTP_INP_RUNLOCK(inp);
2125                                 } else {
2126                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2127                                         error = EINVAL;
2128                                 }
2129                         }
2130                         if (error == 0) {
2131                                 *optsize = sizeof(struct sctp_assoc_value);
2132                         }
2133                         break;
2134                 }
2135         case SCTP_GET_STAT_LOG:
2136                 error = sctp_fill_stat_log(optval, optsize);
2137                 break;
2138         case SCTP_EVENTS:
2139                 {
2140                         struct sctp_event_subscribe *events;
2141
2142                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2143                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2144                         SCTP_INP_RLOCK(inp);
2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2146                                 events->sctp_data_io_event = 1;
2147
2148                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2149                                 events->sctp_association_event = 1;
2150
2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2152                                 events->sctp_address_event = 1;
2153
2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2155                                 events->sctp_send_failure_event = 1;
2156
2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2158                                 events->sctp_peer_error_event = 1;
2159
2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2161                                 events->sctp_shutdown_event = 1;
2162
2163                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2164                                 events->sctp_partial_delivery_event = 1;
2165
2166                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2167                                 events->sctp_adaptation_layer_event = 1;
2168
2169                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2170                                 events->sctp_authentication_event = 1;
2171
2172                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2173                                 events->sctp_sender_dry_event = 1;
2174
2175                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2176                                 events->sctp_stream_reset_event = 1;
2177                         SCTP_INP_RUNLOCK(inp);
2178                         *optsize = sizeof(struct sctp_event_subscribe);
2179                         break;
2180                 }
2181         case SCTP_ADAPTATION_LAYER:
2182                 {
2183                         uint32_t *value;
2184
2185                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2186
2187                         SCTP_INP_RLOCK(inp);
2188                         *value = inp->sctp_ep.adaptation_layer_indicator;
2189                         SCTP_INP_RUNLOCK(inp);
2190                         *optsize = sizeof(uint32_t);
2191                         break;
2192                 }
2193         case SCTP_SET_INITIAL_DBG_SEQ:
2194                 {
2195                         uint32_t *value;
2196
2197                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2198                         SCTP_INP_RLOCK(inp);
2199                         *value = inp->sctp_ep.initial_sequence_debug;
2200                         SCTP_INP_RUNLOCK(inp);
2201                         *optsize = sizeof(uint32_t);
2202                         break;
2203                 }
2204         case SCTP_GET_LOCAL_ADDR_SIZE:
2205                 {
2206                         uint32_t *value;
2207
2208                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2209                         SCTP_INP_RLOCK(inp);
2210                         *value = sctp_count_max_addresses(inp);
2211                         SCTP_INP_RUNLOCK(inp);
2212                         *optsize = sizeof(uint32_t);
2213                         break;
2214                 }
2215         case SCTP_GET_REMOTE_ADDR_SIZE:
2216                 {
2217                         uint32_t *value;
2218                         size_t size;
2219                         struct sctp_nets *net;
2220
2221                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2222                         /* FIXME MT: change to sctp_assoc_value? */
2223                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2224
2225                         if (stcb) {
2226                                 size = 0;
2227                                 /* Count the sizes */
2228                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2229                                         switch (net->ro._l_addr.sa.sa_family) {
2230 #ifdef INET
2231                                         case AF_INET:
2232 #ifdef INET6
2233                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2234                                                         size += sizeof(struct sockaddr_in6);
2235                                                 } else {
2236                                                         size += sizeof(struct sockaddr_in);
2237                                                 }
2238 #else
2239                                                 size += sizeof(struct sockaddr_in);
2240 #endif
2241                                                 break;
2242 #endif
2243 #ifdef INET6
2244                                         case AF_INET6:
2245                                                 size += sizeof(struct sockaddr_in6);
2246                                                 break;
2247 #endif
2248                                         default:
2249                                                 break;
2250                                         }
2251                                 }
2252                                 SCTP_TCB_UNLOCK(stcb);
2253                                 *value = (uint32_t) size;
2254                                 *optsize = sizeof(uint32_t);
2255                         } else {
2256                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2257                                 error = ENOTCONN;
2258                         }
2259                         break;
2260                 }
2261         case SCTP_GET_PEER_ADDRESSES:
2262                 /*
2263                  * Get the address information, an array is passed in to
2264                  * fill up we pack it.
2265                  */
2266                 {
2267                         size_t cpsz, left;
2268                         struct sockaddr_storage *sas;
2269                         struct sctp_nets *net;
2270                         struct sctp_getaddresses *saddr;
2271
2272                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2273                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2274
2275                         if (stcb) {
2276                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2277                                 *optsize = sizeof(struct sctp_getaddresses);
2278                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2279
2280                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2281                                         switch (net->ro._l_addr.sa.sa_family) {
2282 #ifdef INET
2283                                         case AF_INET:
2284 #ifdef INET6
2285                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2286                                                         cpsz = sizeof(struct sockaddr_in6);
2287                                                 } else {
2288                                                         cpsz = sizeof(struct sockaddr_in);
2289                                                 }
2290 #else
2291                                                 cpsz = sizeof(struct sockaddr_in);
2292 #endif
2293                                                 break;
2294 #endif
2295 #ifdef INET6
2296                                         case AF_INET6:
2297                                                 cpsz = sizeof(struct sockaddr_in6);
2298                                                 break;
2299 #endif
2300                                         default:
2301                                                 cpsz = 0;
2302                                                 break;
2303                                         }
2304                                         if (cpsz == 0) {
2305                                                 break;
2306                                         }
2307                                         if (left < cpsz) {
2308                                                 /* not enough room. */
2309                                                 break;
2310                                         }
2311 #if defined(INET) && defined(INET6)
2312                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2313                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2314                                                 /* Must map the address */
2315                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2316                                                     (struct sockaddr_in6 *)sas);
2317                                         } else {
2318                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2319                                         }
2320 #else
2321                                         memcpy(sas, &net->ro._l_addr, cpsz);
2322 #endif
2323                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2324
2325                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2326                                         left -= cpsz;
2327                                         *optsize += cpsz;
2328                                 }
2329                                 SCTP_TCB_UNLOCK(stcb);
2330                         } else {
2331                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2332                                 error = ENOENT;
2333                         }
2334                         break;
2335                 }
2336         case SCTP_GET_LOCAL_ADDRESSES:
2337                 {
2338                         size_t limit, actual;
2339                         struct sockaddr_storage *sas;
2340                         struct sctp_getaddresses *saddr;
2341
2342                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2343                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2344
2345                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2346                         limit = *optsize - sizeof(sctp_assoc_t);
2347                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2348                         if (stcb) {
2349                                 SCTP_TCB_UNLOCK(stcb);
2350                         }
2351                         *optsize = sizeof(struct sockaddr_storage) + actual;
2352                         break;
2353                 }
2354         case SCTP_PEER_ADDR_PARAMS:
2355                 {
2356                         struct sctp_paddrparams *paddrp;
2357                         struct sctp_nets *net;
2358                         struct sockaddr *addr;
2359
2360 #if defined(INET) && defined(INET6)
2361                         struct sockaddr_in sin_store;
2362
2363 #endif
2364
2365                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2366                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2367
2368 #if defined(INET) && defined(INET6)
2369                         if (paddrp->spp_address.ss_family == AF_INET6) {
2370                                 struct sockaddr_in6 *sin6;
2371
2372                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2373                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2374                                         in6_sin6_2_sin(&sin_store, sin6);
2375                                         addr = (struct sockaddr *)&sin_store;
2376                                 } else {
2377                                         addr = (struct sockaddr *)&paddrp->spp_address;
2378                                 }
2379                         } else {
2380                                 addr = (struct sockaddr *)&paddrp->spp_address;
2381                         }
2382 #else
2383                         addr = (struct sockaddr *)&paddrp->spp_address;
2384 #endif
2385                         if (stcb != NULL) {
2386                                 net = sctp_findnet(stcb, addr);
2387                         } else {
2388                                 /*
2389                                  * We increment here since
2390                                  * sctp_findassociation_ep_addr() wil do a
2391                                  * decrement if it finds the stcb as long as
2392                                  * the locked tcb (last argument) is NOT a
2393                                  * TCB.. aka NULL.
2394                                  */
2395                                 net = NULL;
2396                                 SCTP_INP_INCR_REF(inp);
2397                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2398                                 if (stcb == NULL) {
2399                                         SCTP_INP_DECR_REF(inp);
2400                                 }
2401                         }
2402                         if ((stcb != NULL) && (net == NULL)) {
2403 #ifdef INET
2404                                 if (addr->sa_family == AF_INET) {
2405                                         struct sockaddr_in *sin;
2406
2407                                         sin = (struct sockaddr_in *)addr;
2408                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2409                                                 error = EINVAL;
2410                                                 SCTP_TCB_UNLOCK(stcb);
2411                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2412                                                 break;
2413                                         }
2414                                 } else
2415 #endif
2416 #ifdef INET6
2417                                 if (addr->sa_family == AF_INET6) {
2418                                         struct sockaddr_in6 *sin6;
2419
2420                                         sin6 = (struct sockaddr_in6 *)addr;
2421                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2422                                                 error = EINVAL;
2423                                                 SCTP_TCB_UNLOCK(stcb);
2424                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2425                                                 break;
2426                                         }
2427                                 } else
2428 #endif
2429                                 {
2430                                         error = EAFNOSUPPORT;
2431                                         SCTP_TCB_UNLOCK(stcb);
2432                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2433                                         break;
2434                                 }
2435                         }
2436                         if (stcb != NULL) {
2437                                 /* Applies to the specific association */
2438                                 paddrp->spp_flags = 0;
2439                                 if (net != NULL) {
2440                                         int ovh;
2441
2442                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2443                                                 ovh = SCTP_MED_OVERHEAD;
2444                                         } else {
2445                                                 ovh = SCTP_MED_V4_OVERHEAD;
2446                                         }
2447
2448                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2449                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2450                                         paddrp->spp_pathmtu = net->mtu - ovh;
2451                                         /* get flags for HB */
2452                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2453                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2454                                         } else {
2455                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2456                                         }
2457                                         /* get flags for PMTU */
2458                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2459                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2460                                         } else {
2461                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2462                                         }
2463                                         if (net->dscp & 0x01) {
2464                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2465                                                 paddrp->spp_flags |= SPP_DSCP;
2466                                         }
2467 #ifdef INET6
2468                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2469                                             (net->flowlabel & 0x80000000)) {
2470                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2471                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2472                                         }
2473 #endif
2474                                 } else {
2475                                         /*
2476                                          * No destination so return default
2477                                          * value
2478                                          */
2479                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2480                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2481                                         if (stcb->asoc.default_dscp & 0x01) {
2482                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2483                                                 paddrp->spp_flags |= SPP_DSCP;
2484                                         }
2485 #ifdef INET6
2486                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2487                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2488                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2489                                         }
2490 #endif
2491                                         /* default settings should be these */
2492                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2493                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2494                                         } else {
2495                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2496                                         }
2497                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2498                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2499                                         } else {
2500                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2501                                         }
2502                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2503                                 }
2504                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2505                                 SCTP_TCB_UNLOCK(stcb);
2506                         } else {
2507                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2508                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2509                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2510                                         /* Use endpoint defaults */
2511                                         SCTP_INP_RLOCK(inp);
2512                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2513                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2514                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2515                                         /* get inp's default */
2516                                         if (inp->sctp_ep.default_dscp & 0x01) {
2517                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2518                                                 paddrp->spp_flags |= SPP_DSCP;
2519                                         }
2520 #ifdef INET6
2521                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2522                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2523                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2524                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2525                                         }
2526 #endif
2527                                         /* can't return this */
2528                                         paddrp->spp_pathmtu = 0;
2529
2530                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2531                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2532                                         } else {
2533                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2534                                         }
2535                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2536                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2537                                         } else {
2538                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2539                                         }
2540                                         SCTP_INP_RUNLOCK(inp);
2541                                 } else {
2542                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2543                                         error = EINVAL;
2544                                 }
2545                         }
2546                         if (error == 0) {
2547                                 *optsize = sizeof(struct sctp_paddrparams);
2548                         }
2549                         break;
2550                 }
2551         case SCTP_GET_PEER_ADDR_INFO:
2552                 {
2553                         struct sctp_paddrinfo *paddri;
2554                         struct sctp_nets *net;
2555                         struct sockaddr *addr;
2556
2557 #if defined(INET) && defined(INET6)
2558                         struct sockaddr_in sin_store;
2559
2560 #endif
2561
2562                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2563                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2564
2565 #if defined(INET) && defined(INET6)
2566                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2567                                 struct sockaddr_in6 *sin6;
2568
2569                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2570                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2571                                         in6_sin6_2_sin(&sin_store, sin6);
2572                                         addr = (struct sockaddr *)&sin_store;
2573                                 } else {
2574                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2575                                 }
2576                         } else {
2577                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2578                         }
2579 #else
2580                         addr = (struct sockaddr *)&paddri->spinfo_address;
2581 #endif
2582                         if (stcb != NULL) {
2583                                 net = sctp_findnet(stcb, addr);
2584                         } else {
2585                                 /*
2586                                  * We increment here since
2587                                  * sctp_findassociation_ep_addr() wil do a
2588                                  * decrement if it finds the stcb as long as
2589                                  * the locked tcb (last argument) is NOT a
2590                                  * TCB.. aka NULL.
2591                                  */
2592                                 net = NULL;
2593                                 SCTP_INP_INCR_REF(inp);
2594                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2595                                 if (stcb == NULL) {
2596                                         SCTP_INP_DECR_REF(inp);
2597                                 }
2598                         }
2599
2600                         if ((stcb != NULL) && (net != NULL)) {
2601                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2602                                         /* It's unconfirmed */
2603                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2604                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2605                                         /* It's active */
2606                                         paddri->spinfo_state = SCTP_ACTIVE;
2607                                 } else {
2608                                         /* It's inactive */
2609                                         paddri->spinfo_state = SCTP_INACTIVE;
2610                                 }
2611                                 paddri->spinfo_cwnd = net->cwnd;
2612                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2613                                 paddri->spinfo_rto = net->RTO;
2614                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2615                                 paddri->spinfo_mtu = net->mtu;
2616                                 SCTP_TCB_UNLOCK(stcb);
2617                                 *optsize = sizeof(struct sctp_paddrinfo);
2618                         } else {
2619                                 if (stcb != NULL) {
2620                                         SCTP_TCB_UNLOCK(stcb);
2621                                 }
2622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2623                                 error = ENOENT;
2624                         }
2625                         break;
2626                 }
2627         case SCTP_PCB_STATUS:
2628                 {
2629                         struct sctp_pcbinfo *spcb;
2630
2631                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2632                         sctp_fill_pcbinfo(spcb);
2633                         *optsize = sizeof(struct sctp_pcbinfo);
2634                         break;
2635                 }
2636         case SCTP_STATUS:
2637                 {
2638                         struct sctp_nets *net;
2639                         struct sctp_status *sstat;
2640
2641                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2642                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2643
2644                         if (stcb == NULL) {
2645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2646                                 error = EINVAL;
2647                                 break;
2648                         }
2649                         /*
2650                          * I think passing the state is fine since
2651                          * sctp_constants.h will be available to the user
2652                          * land.
2653                          */
2654                         sstat->sstat_state = stcb->asoc.state;
2655                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2656                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2657                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2658                         /*
2659                          * We can't include chunks that have been passed to
2660                          * the socket layer. Only things in queue.
2661                          */
2662                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2663                             stcb->asoc.cnt_on_all_streams);
2664
2665
2666                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2667                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2668                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2669                         memcpy(&sstat->sstat_primary.spinfo_address,
2670                             &stcb->asoc.primary_destination->ro._l_addr,
2671                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2672                         net = stcb->asoc.primary_destination;
2673                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2674                         /*
2675                          * Again the user can get info from sctp_constants.h
2676                          * for what the state of the network is.
2677                          */
2678                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2679                                 /* It's unconfirmed */
2680                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2681                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2682                                 /* It's active */
2683                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2684                         } else {
2685                                 /* It's inactive */
2686                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2687                         }
2688                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2689                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2690                         sstat->sstat_primary.spinfo_rto = net->RTO;
2691                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2692                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2693                         SCTP_TCB_UNLOCK(stcb);
2694                         *optsize = sizeof(struct sctp_status);
2695                         break;
2696                 }
2697         case SCTP_RTOINFO:
2698                 {
2699                         struct sctp_rtoinfo *srto;
2700
2701                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2702                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2703
2704                         if (stcb) {
2705                                 srto->srto_initial = stcb->asoc.initial_rto;
2706                                 srto->srto_max = stcb->asoc.maxrto;
2707                                 srto->srto_min = stcb->asoc.minrto;
2708                                 SCTP_TCB_UNLOCK(stcb);
2709                         } else {
2710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2712                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2713                                         SCTP_INP_RLOCK(inp);
2714                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2715                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2716                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2717                                         SCTP_INP_RUNLOCK(inp);
2718                                 } else {
2719                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2720                                         error = EINVAL;
2721                                 }
2722                         }
2723                         if (error == 0) {
2724                                 *optsize = sizeof(struct sctp_rtoinfo);
2725                         }
2726                         break;
2727                 }
2728         case SCTP_TIMEOUTS:
2729                 {
2730                         struct sctp_timeouts *stimo;
2731
2732                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2733                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2734
2735                         if (stcb) {
2736                                 stimo->stimo_init = stcb->asoc.timoinit;
2737                                 stimo->stimo_data = stcb->asoc.timodata;
2738                                 stimo->stimo_sack = stcb->asoc.timosack;
2739                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2740                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2741                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2742                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2743                                 SCTP_TCB_UNLOCK(stcb);
2744                                 *optsize = sizeof(struct sctp_timeouts);
2745                         } else {
2746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2747                                 error = EINVAL;
2748                         }
2749                         break;
2750                 }
2751         case SCTP_ASSOCINFO:
2752                 {
2753                         struct sctp_assocparams *sasoc;
2754
2755                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2756                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2757
2758                         if (stcb) {
2759                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2760                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2761                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2762                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2763                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2764                                 SCTP_TCB_UNLOCK(stcb);
2765                         } else {
2766                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2767                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2768                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2769                                         SCTP_INP_RLOCK(inp);
2770                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2771                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2772                                         sasoc->sasoc_number_peer_destinations = 0;
2773                                         sasoc->sasoc_peer_rwnd = 0;
2774                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2775                                         SCTP_INP_RUNLOCK(inp);
2776                                 } else {
2777                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2778                                         error = EINVAL;
2779                                 }
2780                         }
2781                         if (error == 0) {
2782                                 *optsize = sizeof(struct sctp_assocparams);
2783                         }
2784                         break;
2785                 }
2786         case SCTP_DEFAULT_SEND_PARAM:
2787                 {
2788                         struct sctp_sndrcvinfo *s_info;
2789
2790                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2791                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2792
2793                         if (stcb) {
2794                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2795                                 SCTP_TCB_UNLOCK(stcb);
2796                         } else {
2797                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2798                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2799                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2800                                         SCTP_INP_RLOCK(inp);
2801                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2802                                         SCTP_INP_RUNLOCK(inp);
2803                                 } else {
2804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2805                                         error = EINVAL;
2806                                 }
2807                         }
2808                         if (error == 0) {
2809                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2810                         }
2811                         break;
2812                 }
2813         case SCTP_INITMSG:
2814                 {
2815                         struct sctp_initmsg *sinit;
2816
2817                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2818                         SCTP_INP_RLOCK(inp);
2819                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2820                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2821                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2822                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2823                         SCTP_INP_RUNLOCK(inp);
2824                         *optsize = sizeof(struct sctp_initmsg);
2825                         break;
2826                 }
2827         case SCTP_PRIMARY_ADDR:
2828                 /* we allow a "get" operation on this */
2829                 {
2830                         struct sctp_setprim *ssp;
2831
2832                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2833                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2834
2835                         if (stcb) {
2836                                 union sctp_sockstore *addr;
2837
2838                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2839                                 switch (addr->sa.sa_family) {
2840 #ifdef INET
2841                                 case AF_INET:
2842 #ifdef INET6
2843                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2844                                                 in6_sin_2_v4mapsin6(&addr->sin,
2845                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2846                                         } else {
2847                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2848                                         }
2849 #else
2850                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2851 #endif
2852                                         break;
2853 #endif
2854 #ifdef INET6
2855                                 case AF_INET6:
2856                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2857                                         break;
2858 #endif
2859                                 default:
2860                                         break;
2861                                 }
2862                                 SCTP_TCB_UNLOCK(stcb);
2863                                 *optsize = sizeof(struct sctp_setprim);
2864                         } else {
2865                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2866                                 error = EINVAL;
2867                         }
2868                         break;
2869                 }
2870         case SCTP_HMAC_IDENT:
2871                 {
2872                         struct sctp_hmacalgo *shmac;
2873                         sctp_hmaclist_t *hmaclist;
2874                         uint32_t size;
2875                         int i;
2876
2877                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2878
2879                         SCTP_INP_RLOCK(inp);
2880                         hmaclist = inp->sctp_ep.local_hmacs;
2881                         if (hmaclist == NULL) {
2882                                 /* no HMACs to return */
2883                                 *optsize = sizeof(*shmac);
2884                                 SCTP_INP_RUNLOCK(inp);
2885                                 break;
2886                         }
2887                         /* is there room for all of the hmac ids? */
2888                         size = sizeof(*shmac) + (hmaclist->num_algo *
2889                             sizeof(shmac->shmac_idents[0]));
2890                         if ((size_t)(*optsize) < size) {
2891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2892                                 error = EINVAL;
2893                                 SCTP_INP_RUNLOCK(inp);
2894                                 break;
2895                         }
2896                         /* copy in the list */
2897                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2898                         for (i = 0; i < hmaclist->num_algo; i++) {
2899                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2900                         }
2901                         SCTP_INP_RUNLOCK(inp);
2902                         *optsize = size;
2903                         break;
2904                 }
2905         case SCTP_AUTH_ACTIVE_KEY:
2906                 {
2907                         struct sctp_authkeyid *scact;
2908
2909                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2910                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2911
2912                         if (stcb) {
2913                                 /* get the active key on the assoc */
2914                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2915                                 SCTP_TCB_UNLOCK(stcb);
2916                         } else {
2917                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2918                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2919                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2920                                         /* get the endpoint active key */
2921                                         SCTP_INP_RLOCK(inp);
2922                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2923                                         SCTP_INP_RUNLOCK(inp);
2924                                 } else {
2925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2926                                         error = EINVAL;
2927                                 }
2928                         }
2929                         if (error == 0) {
2930                                 *optsize = sizeof(struct sctp_authkeyid);
2931                         }
2932                         break;
2933                 }
2934         case SCTP_LOCAL_AUTH_CHUNKS:
2935                 {
2936                         struct sctp_authchunks *sac;
2937                         sctp_auth_chklist_t *chklist = NULL;
2938                         size_t size = 0;
2939
2940                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2941                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2942
2943                         if (stcb) {
2944                                 /* get off the assoc */
2945                                 chklist = stcb->asoc.local_auth_chunks;
2946                                 /* is there enough space? */
2947                                 size = sctp_auth_get_chklist_size(chklist);
2948                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2949                                         error = EINVAL;
2950                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2951                                 } else {
2952                                         /* copy in the chunks */
2953                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2954                                         sac->gauth_number_of_chunks = (uint32_t) size;
2955                                         *optsize = sizeof(struct sctp_authchunks) + size;
2956                                 }
2957                                 SCTP_TCB_UNLOCK(stcb);
2958                         } else {
2959                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2960                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2961                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2962                                         /* get off the endpoint */
2963                                         SCTP_INP_RLOCK(inp);
2964                                         chklist = inp->sctp_ep.local_auth_chunks;
2965                                         /* is there enough space? */
2966                                         size = sctp_auth_get_chklist_size(chklist);
2967                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2968                                                 error = EINVAL;
2969                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2970                                         } else {
2971                                                 /* copy in the chunks */
2972                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2973                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2974                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2975                                         }
2976                                         SCTP_INP_RUNLOCK(inp);
2977                                 } else {
2978                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2979                                         error = EINVAL;
2980                                 }
2981                         }
2982                         break;
2983                 }
2984         case SCTP_PEER_AUTH_CHUNKS:
2985                 {
2986                         struct sctp_authchunks *sac;
2987                         sctp_auth_chklist_t *chklist = NULL;
2988                         size_t size = 0;
2989
2990                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2991                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2992
2993                         if (stcb) {
2994                                 /* get off the assoc */
2995                                 chklist = stcb->asoc.peer_auth_chunks;
2996                                 /* is there enough space? */
2997                                 size = sctp_auth_get_chklist_size(chklist);
2998                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2999                                         error = EINVAL;
3000                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3001                                 } else {
3002                                         /* copy in the chunks */
3003                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3004                                         sac->gauth_number_of_chunks = (uint32_t) size;
3005                                         *optsize = sizeof(struct sctp_authchunks) + size;
3006                                 }
3007                                 SCTP_TCB_UNLOCK(stcb);
3008                         } else {
3009                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3010                                 error = ENOENT;
3011                         }
3012                         break;
3013                 }
3014         case SCTP_EVENT:
3015                 {
3016                         struct sctp_event *event;
3017                         uint32_t event_type;
3018
3019                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3020                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3021
3022                         switch (event->se_type) {
3023                         case SCTP_ASSOC_CHANGE:
3024                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3025                                 break;
3026                         case SCTP_PEER_ADDR_CHANGE:
3027                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3028                                 break;
3029                         case SCTP_REMOTE_ERROR:
3030                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3031                                 break;
3032                         case SCTP_SEND_FAILED:
3033                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3034                                 break;
3035                         case SCTP_SHUTDOWN_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3037                                 break;
3038                         case SCTP_ADAPTATION_INDICATION:
3039                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3040                                 break;
3041                         case SCTP_PARTIAL_DELIVERY_EVENT:
3042                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3043                                 break;
3044                         case SCTP_AUTHENTICATION_EVENT:
3045                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3046                                 break;
3047                         case SCTP_STREAM_RESET_EVENT:
3048                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3049                                 break;
3050                         case SCTP_SENDER_DRY_EVENT:
3051                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3052                                 break;
3053                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3054                                 event_type = 0;
3055                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3056                                 error = ENOTSUP;
3057                                 break;
3058                         case SCTP_ASSOC_RESET_EVENT:
3059                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3060                                 break;
3061                         case SCTP_STREAM_CHANGE_EVENT:
3062                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3063                                 break;
3064                         case SCTP_SEND_FAILED_EVENT:
3065                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3066                                 break;
3067                         default:
3068                                 event_type = 0;
3069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3070                                 error = EINVAL;
3071                                 break;
3072                         }
3073                         if (event_type > 0) {
3074                                 if (stcb) {
3075                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3076                                         SCTP_TCB_UNLOCK(stcb);
3077                                 } else {
3078                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3079                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3080                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3081                                                 SCTP_INP_RLOCK(inp);
3082                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3083                                                 SCTP_INP_RUNLOCK(inp);
3084                                         } else {
3085                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3086                                                 error = EINVAL;
3087                                         }
3088                                 }
3089                         }
3090                         if (error == 0) {
3091                                 *optsize = sizeof(struct sctp_event);
3092                         }
3093                         break;
3094                 }
3095         case SCTP_RECVRCVINFO:
3096                 {
3097                         int onoff;
3098
3099                         if (*optsize < sizeof(int)) {
3100                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3101                                 error = EINVAL;
3102                         } else {
3103                                 SCTP_INP_RLOCK(inp);
3104                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3105                                 SCTP_INP_RUNLOCK(inp);
3106                         }
3107                         if (error == 0) {
3108                                 /* return the option value */
3109                                 *(int *)optval = onoff;
3110                                 *optsize = sizeof(int);
3111                         }
3112                         break;
3113                 }
3114         case SCTP_RECVNXTINFO:
3115                 {
3116                         int onoff;
3117
3118                         if (*optsize < sizeof(int)) {
3119                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3120                                 error = EINVAL;
3121                         } else {
3122                                 SCTP_INP_RLOCK(inp);
3123                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3124                                 SCTP_INP_RUNLOCK(inp);
3125                         }
3126                         if (error == 0) {
3127                                 /* return the option value */
3128                                 *(int *)optval = onoff;
3129                                 *optsize = sizeof(int);
3130                         }
3131                         break;
3132                 }
3133         case SCTP_DEFAULT_SNDINFO:
3134                 {
3135                         struct sctp_sndinfo *info;
3136
3137                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3138                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3139
3140                         if (stcb) {
3141                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3142                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3143                                 info->snd_flags &= 0xfff0;
3144                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3145                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3146                                 SCTP_TCB_UNLOCK(stcb);
3147                         } else {
3148                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3149                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3150                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3151                                         SCTP_INP_RLOCK(inp);
3152                                         info->snd_sid = inp->def_send.sinfo_stream;
3153                                         info->snd_flags = inp->def_send.sinfo_flags;
3154                                         info->snd_flags &= 0xfff0;
3155                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3156                                         info->snd_context = inp->def_send.sinfo_context;
3157                                         SCTP_INP_RUNLOCK(inp);
3158                                 } else {
3159                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3160                                         error = EINVAL;
3161                                 }
3162                         }
3163                         if (error == 0) {
3164                                 *optsize = sizeof(struct sctp_sndinfo);
3165                         }
3166                         break;
3167                 }
3168         case SCTP_DEFAULT_PRINFO:
3169                 {
3170                         struct sctp_default_prinfo *info;
3171
3172                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3173                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3174
3175                         if (stcb) {
3176                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3177                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3178                                 SCTP_TCB_UNLOCK(stcb);
3179                         } else {
3180                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3181                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3182                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3183                                         SCTP_INP_RLOCK(inp);
3184                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3185                                         info->pr_value = inp->def_send.sinfo_timetolive;
3186                                         SCTP_INP_RUNLOCK(inp);
3187                                 } else {
3188                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3189                                         error = EINVAL;
3190                                 }
3191                         }
3192                         if (error == 0) {
3193                                 *optsize = sizeof(struct sctp_default_prinfo);
3194                         }
3195                         break;
3196                 }
3197         case SCTP_PEER_ADDR_THLDS:
3198                 {
3199                         struct sctp_paddrthlds *thlds;
3200                         struct sctp_nets *net;
3201                         struct sockaddr *addr;
3202
3203 #if defined(INET) && defined(INET6)
3204                         struct sockaddr_in sin_store;
3205
3206 #endif
3207
3208                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3209                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3210
3211 #if defined(INET) && defined(INET6)
3212                         if (thlds->spt_address.ss_family == AF_INET6) {
3213                                 struct sockaddr_in6 *sin6;
3214
3215                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3216                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3217                                         in6_sin6_2_sin(&sin_store, sin6);
3218                                         addr = (struct sockaddr *)&sin_store;
3219                                 } else {
3220                                         addr = (struct sockaddr *)&thlds->spt_address;
3221                                 }
3222                         } else {
3223                                 addr = (struct sockaddr *)&thlds->spt_address;
3224                         }
3225 #else
3226                         addr = (struct sockaddr *)&thlds->spt_address;
3227 #endif
3228                         if (stcb != NULL) {
3229                                 net = sctp_findnet(stcb, addr);
3230                         } else {
3231                                 /*
3232                                  * We increment here since
3233                                  * sctp_findassociation_ep_addr() wil do a
3234                                  * decrement if it finds the stcb as long as
3235                                  * the locked tcb (last argument) is NOT a
3236                                  * TCB.. aka NULL.
3237                                  */
3238                                 net = NULL;
3239                                 SCTP_INP_INCR_REF(inp);
3240                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3241                                 if (stcb == NULL) {
3242                                         SCTP_INP_DECR_REF(inp);
3243                                 }
3244                         }
3245                         if ((stcb != NULL) && (net == NULL)) {
3246 #ifdef INET
3247                                 if (addr->sa_family == AF_INET) {
3248                                         struct sockaddr_in *sin;
3249
3250                                         sin = (struct sockaddr_in *)addr;
3251                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3252                                                 error = EINVAL;
3253                                                 SCTP_TCB_UNLOCK(stcb);
3254                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3255                                                 break;
3256                                         }
3257                                 } else
3258 #endif
3259 #ifdef INET6
3260                                 if (addr->sa_family == AF_INET6) {
3261                                         struct sockaddr_in6 *sin6;
3262
3263                                         sin6 = (struct sockaddr_in6 *)addr;
3264                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3265                                                 error = EINVAL;
3266                                                 SCTP_TCB_UNLOCK(stcb);
3267                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3268                                                 break;
3269                                         }
3270                                 } else
3271 #endif
3272                                 {
3273                                         error = EAFNOSUPPORT;
3274                                         SCTP_TCB_UNLOCK(stcb);
3275                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3276                                         break;
3277                                 }
3278                         }
3279                         if (stcb != NULL) {
3280                                 if (net != NULL) {
3281                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3282                                         thlds->spt_pathpfthld = net->pf_threshold;
3283                                 } else {
3284                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3285                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3286                                 }
3287                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3288                                 SCTP_TCB_UNLOCK(stcb);
3289                         } else {
3290                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3291                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3292                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3293                                         /* Use endpoint defaults */
3294                                         SCTP_INP_RLOCK(inp);
3295                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3296                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3297                                         SCTP_INP_RUNLOCK(inp);
3298                                 } else {
3299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3300                                         error = EINVAL;
3301                                 }
3302                         }
3303                         if (error == 0) {
3304                                 *optsize = sizeof(struct sctp_paddrthlds);
3305                         }
3306                         break;
3307                 }
3308         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3309                 {
3310                         struct sctp_udpencaps *encaps;
3311                         struct sctp_nets *net;
3312                         struct sockaddr *addr;
3313
3314 #if defined(INET) && defined(INET6)
3315                         struct sockaddr_in sin_store;
3316
3317 #endif
3318
3319                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3320                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3321
3322 #if defined(INET) && defined(INET6)
3323                         if (encaps->sue_address.ss_family == AF_INET6) {
3324                                 struct sockaddr_in6 *sin6;
3325
3326                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3327                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3328                                         in6_sin6_2_sin(&sin_store, sin6);
3329                                         addr = (struct sockaddr *)&sin_store;
3330                                 } else {
3331                                         addr = (struct sockaddr *)&encaps->sue_address;
3332                                 }
3333                         } else {
3334                                 addr = (struct sockaddr *)&encaps->sue_address;
3335                         }
3336 #else
3337                         addr = (struct sockaddr *)&encaps->sue_address;
3338 #endif
3339                         if (stcb) {
3340                                 net = sctp_findnet(stcb, addr);
3341                         } else {
3342                                 /*
3343                                  * We increment here since
3344                                  * sctp_findassociation_ep_addr() wil do a
3345                                  * decrement if it finds the stcb as long as
3346                                  * the locked tcb (last argument) is NOT a
3347                                  * TCB.. aka NULL.
3348                                  */
3349                                 net = NULL;
3350                                 SCTP_INP_INCR_REF(inp);
3351                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3352                                 if (stcb == NULL) {
3353                                         SCTP_INP_DECR_REF(inp);
3354                                 }
3355                         }
3356                         if ((stcb != NULL) && (net == NULL)) {
3357 #ifdef INET
3358                                 if (addr->sa_family == AF_INET) {
3359                                         struct sockaddr_in *sin;
3360
3361                                         sin = (struct sockaddr_in *)addr;
3362                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3363                                                 error = EINVAL;
3364                                                 SCTP_TCB_UNLOCK(stcb);
3365                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3366                                                 break;
3367                                         }
3368                                 } else
3369 #endif
3370 #ifdef INET6
3371                                 if (addr->sa_family == AF_INET6) {
3372                                         struct sockaddr_in6 *sin6;
3373
3374                                         sin6 = (struct sockaddr_in6 *)addr;
3375                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3376                                                 error = EINVAL;
3377                                                 SCTP_TCB_UNLOCK(stcb);
3378                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3379                                                 break;
3380                                         }
3381                                 } else
3382 #endif
3383                                 {
3384                                         error = EAFNOSUPPORT;
3385                                         SCTP_TCB_UNLOCK(stcb);
3386                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3387                                         break;
3388                                 }
3389                         }
3390                         if (stcb != NULL) {
3391                                 if (net) {
3392                                         encaps->sue_port = net->port;
3393                                 } else {
3394                                         encaps->sue_port = stcb->asoc.port;
3395                                 }
3396                                 SCTP_TCB_UNLOCK(stcb);
3397                         } else {
3398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3399                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3400                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3401                                         SCTP_INP_RLOCK(inp);
3402                                         encaps->sue_port = inp->sctp_ep.port;
3403                                         SCTP_INP_RUNLOCK(inp);
3404                                 } else {
3405                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3406                                         error = EINVAL;
3407                                 }
3408                         }
3409                         if (error == 0) {
3410                                 *optsize = sizeof(struct sctp_udpencaps);
3411                         }
3412                         break;
3413                 }
3414         case SCTP_ECN_SUPPORTED:
3415                 {
3416                         struct sctp_assoc_value *av;
3417
3418                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3419                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3420
3421                         if (stcb) {
3422                                 av->assoc_value = stcb->asoc.ecn_supported;
3423                                 SCTP_TCB_UNLOCK(stcb);
3424                         } else {
3425                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3426                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3427                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3428                                         SCTP_INP_RLOCK(inp);
3429                                         av->assoc_value = inp->ecn_supported;
3430                                         SCTP_INP_RUNLOCK(inp);
3431                                 } else {
3432                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3433                                         error = EINVAL;
3434                                 }
3435                         }
3436                         if (error == 0) {
3437                                 *optsize = sizeof(struct sctp_assoc_value);
3438                         }
3439                         break;
3440                 }
3441         case SCTP_PR_SUPPORTED:
3442                 {
3443                         struct sctp_assoc_value *av;
3444
3445                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3446                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3447
3448                         if (stcb) {
3449                                 av->assoc_value = stcb->asoc.prsctp_supported;
3450                                 SCTP_TCB_UNLOCK(stcb);
3451                         } else {
3452                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3453                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3454                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3455                                         SCTP_INP_RLOCK(inp);
3456                                         av->assoc_value = inp->prsctp_supported;
3457                                         SCTP_INP_RUNLOCK(inp);
3458                                 } else {
3459                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3460                                         error = EINVAL;
3461                                 }
3462                         }
3463                         if (error == 0) {
3464                                 *optsize = sizeof(struct sctp_assoc_value);
3465                         }
3466                         break;
3467                 }
3468         case SCTP_AUTH_SUPPORTED:
3469                 {
3470                         struct sctp_assoc_value *av;
3471
3472                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3473                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3474
3475                         if (stcb) {
3476                                 av->assoc_value = stcb->asoc.auth_supported;
3477                                 SCTP_TCB_UNLOCK(stcb);
3478                         } else {
3479                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3480                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3481                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3482                                         SCTP_INP_RLOCK(inp);
3483                                         av->assoc_value = inp->auth_supported;
3484                                         SCTP_INP_RUNLOCK(inp);
3485                                 } else {
3486                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3487                                         error = EINVAL;
3488                                 }
3489                         }
3490                         if (error == 0) {
3491                                 *optsize = sizeof(struct sctp_assoc_value);
3492                         }
3493                         break;
3494                 }
3495         case SCTP_ASCONF_SUPPORTED:
3496                 {
3497                         struct sctp_assoc_value *av;
3498
3499                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3500                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3501
3502                         if (stcb) {
3503                                 av->assoc_value = stcb->asoc.asconf_supported;
3504                                 SCTP_TCB_UNLOCK(stcb);
3505                         } else {
3506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3508                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3509                                         SCTP_INP_RLOCK(inp);
3510                                         av->assoc_value = inp->asconf_supported;
3511                                         SCTP_INP_RUNLOCK(inp);
3512                                 } else {
3513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3514                                         error = EINVAL;
3515                                 }
3516                         }
3517                         if (error == 0) {
3518                                 *optsize = sizeof(struct sctp_assoc_value);
3519                         }
3520                         break;
3521                 }
3522         case SCTP_RECONFIG_SUPPORTED:
3523                 {
3524                         struct sctp_assoc_value *av;
3525
3526                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3527                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3528
3529                         if (stcb) {
3530                                 av->assoc_value = stcb->asoc.reconfig_supported;
3531                                 SCTP_TCB_UNLOCK(stcb);
3532                         } else {
3533                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3534                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3535                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3536                                         SCTP_INP_RLOCK(inp);
3537                                         av->assoc_value = inp->reconfig_supported;
3538                                         SCTP_INP_RUNLOCK(inp);
3539                                 } else {
3540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3541                                         error = EINVAL;
3542                                 }
3543                         }
3544                         if (error == 0) {
3545                                 *optsize = sizeof(struct sctp_assoc_value);
3546                         }
3547                         break;
3548                 }
3549         case SCTP_NRSACK_SUPPORTED:
3550                 {
3551                         struct sctp_assoc_value *av;
3552
3553                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3554                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3555
3556                         if (stcb) {
3557                                 av->assoc_value = stcb->asoc.nrsack_supported;
3558                                 SCTP_TCB_UNLOCK(stcb);
3559                         } else {
3560                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3561                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3562                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3563                                         SCTP_INP_RLOCK(inp);
3564                                         av->assoc_value = inp->nrsack_supported;
3565                                         SCTP_INP_RUNLOCK(inp);
3566                                 } else {
3567                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3568                                         error = EINVAL;
3569                                 }
3570                         }
3571                         if (error == 0) {
3572                                 *optsize = sizeof(struct sctp_assoc_value);
3573                         }
3574                         break;
3575                 }
3576         case SCTP_PKTDROP_SUPPORTED:
3577                 {
3578                         struct sctp_assoc_value *av;
3579
3580                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3581                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3582
3583                         if (stcb) {
3584                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3585                                 SCTP_TCB_UNLOCK(stcb);
3586                         } else {
3587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3590                                         SCTP_INP_RLOCK(inp);
3591                                         av->assoc_value = inp->pktdrop_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_ENABLE_STREAM_RESET:
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 = (uint32_t) stcb->asoc.local_strreset_support;
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                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3617                                         SCTP_INP_RLOCK(inp);
3618                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3619                                         SCTP_INP_RUNLOCK(inp);
3620                                 } else {
3621                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3622                                         error = EINVAL;
3623                                 }
3624                         }
3625                         if (error == 0) {
3626                                 *optsize = sizeof(struct sctp_assoc_value);
3627                         }
3628                         break;
3629                 }
3630         case SCTP_PR_STREAM_STATUS:
3631                 {
3632                         struct sctp_prstatus *sprstat;
3633                         uint16_t sid;
3634                         uint16_t policy;
3635
3636                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3637                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3638
3639                         sid = sprstat->sprstat_sid;
3640                         policy = sprstat->sprstat_policy;
3641 #if defined(SCTP_DETAILED_STR_STATS)
3642                         if ((stcb != NULL) &&
3643                             (sid < stcb->asoc.streamoutcnt) &&
3644                             (policy != SCTP_PR_SCTP_NONE) &&
3645                             ((policy <= SCTP_PR_SCTP_MAX) ||
3646                             (policy == SCTP_PR_SCTP_ALL))) {
3647                                 if (policy == SCTP_PR_SCTP_ALL) {
3648                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3649                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3650                                 } else {
3651                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3652                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3653                                 }
3654 #else
3655                         if ((stcb != NULL) &&
3656                             (sid < stcb->asoc.streamoutcnt) &&
3657                             (policy == SCTP_PR_SCTP_ALL)) {
3658                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3659                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3660 #endif
3661                                 SCTP_TCB_UNLOCK(stcb);
3662                                 *optsize = sizeof(struct sctp_prstatus);
3663                         } else {
3664                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3665                                 error = EINVAL;
3666                         }
3667                         break;
3668                 }
3669         case SCTP_PR_ASSOC_STATUS:
3670                 {
3671                         struct sctp_prstatus *sprstat;
3672                         uint16_t policy;
3673
3674                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3675                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3676
3677                         policy = sprstat->sprstat_policy;
3678                         if ((stcb != NULL) &&
3679                             (policy != SCTP_PR_SCTP_NONE) &&
3680                             ((policy <= SCTP_PR_SCTP_MAX) ||
3681                             (policy == SCTP_PR_SCTP_ALL))) {
3682                                 if (policy == SCTP_PR_SCTP_ALL) {
3683                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3684                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3685                                 } else {
3686                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3687                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3688                                 }
3689                                 SCTP_TCB_UNLOCK(stcb);
3690                                 *optsize = sizeof(struct sctp_prstatus);
3691                         } else {
3692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3693                                 error = EINVAL;
3694                         }
3695                         break;
3696                 }
3697         default:
3698                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3699                 error = ENOPROTOOPT;
3700                 break;
3701         }                       /* end switch (sopt->sopt_name) */
3702         if (error) {
3703                 *optsize = 0;
3704         }
3705         return (error);
3706 }
3707
3708 static int
3709 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3710     void *p)
3711 {
3712         int error, set_opt;
3713         uint32_t *mopt;
3714         struct sctp_tcb *stcb = NULL;
3715         struct sctp_inpcb *inp = NULL;
3716         uint32_t vrf_id;
3717
3718         if (optval == NULL) {
3719                 SCTP_PRINTF("optval is NULL\n");
3720                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3721                 return (EINVAL);
3722         }
3723         inp = (struct sctp_inpcb *)so->so_pcb;
3724         if (inp == NULL) {
3725                 SCTP_PRINTF("inp is NULL?\n");
3726                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3727                 return (EINVAL);
3728         }
3729         vrf_id = inp->def_vrf_id;
3730
3731         error = 0;
3732         switch (optname) {
3733         case SCTP_NODELAY:
3734         case SCTP_AUTOCLOSE:
3735         case SCTP_AUTO_ASCONF:
3736         case SCTP_EXPLICIT_EOR:
3737         case SCTP_DISABLE_FRAGMENTS:
3738         case SCTP_USE_EXT_RCVINFO:
3739         case SCTP_I_WANT_MAPPED_V4_ADDR:
3740                 /* copy in the option value */
3741                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3742                 set_opt = 0;
3743                 if (error)
3744                         break;
3745                 switch (optname) {
3746                 case SCTP_DISABLE_FRAGMENTS:
3747                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3748                         break;
3749                 case SCTP_AUTO_ASCONF:
3750                         /*
3751                          * NOTE: we don't really support this flag
3752                          */
3753                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3754                                 /* only valid for bound all sockets */
3755                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3756                                     (*mopt != 0)) {
3757                                         /* forbidden by admin */
3758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3759                                         return (EPERM);
3760                                 }
3761                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3762                         } else {
3763                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3764                                 return (EINVAL);
3765                         }
3766                         break;
3767                 case SCTP_EXPLICIT_EOR:
3768                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3769                         break;
3770                 case SCTP_USE_EXT_RCVINFO:
3771                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3772                         break;
3773                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3774                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3775                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3776                         } else {
3777                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3778                                 return (EINVAL);
3779                         }
3780                         break;
3781                 case SCTP_NODELAY:
3782                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3783                         break;
3784                 case SCTP_AUTOCLOSE:
3785                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3786                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3787                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3788                                 return (EINVAL);
3789                         }
3790                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3791                         /*
3792                          * The value is in ticks. Note this does not effect
3793                          * old associations, only new ones.
3794                          */
3795                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3796                         break;
3797                 }
3798                 SCTP_INP_WLOCK(inp);
3799                 if (*mopt != 0) {
3800                         sctp_feature_on(inp, set_opt);
3801                 } else {
3802                         sctp_feature_off(inp, set_opt);
3803                 }
3804                 SCTP_INP_WUNLOCK(inp);
3805                 break;
3806         case SCTP_REUSE_PORT:
3807                 {
3808                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3809                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3810                                 /* Can't set it after we are bound */
3811                                 error = EINVAL;
3812                                 break;
3813                         }
3814                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3815                                 /* Can't do this for a 1-m socket */
3816                                 error = EINVAL;
3817                                 break;
3818                         }
3819                         if (optval)
3820                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3821                         else
3822                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3823                         break;
3824                 }
3825         case SCTP_PARTIAL_DELIVERY_POINT:
3826                 {
3827                         uint32_t *value;
3828
3829                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3830                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3832                                 error = EINVAL;
3833                                 break;
3834                         }
3835                         inp->partial_delivery_point = *value;
3836                         break;
3837                 }
3838         case SCTP_FRAGMENT_INTERLEAVE:
3839                 /* not yet until we re-write sctp_recvmsg() */
3840                 {
3841                         uint32_t *level;
3842
3843                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3844                         if (*level == SCTP_FRAG_LEVEL_2) {
3845                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3846                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3847                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3848                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3849                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3850                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3851                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3852                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3853
3854                         } else {
3855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3856                                 error = EINVAL;
3857                         }
3858                         break;
3859                 }
3860         case SCTP_CMT_ON_OFF:
3861                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3862                         struct sctp_assoc_value *av;
3863
3864                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3865                         if (av->assoc_value > SCTP_CMT_MAX) {
3866                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3867                                 error = EINVAL;
3868                                 break;
3869                         }
3870                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3871                         if (stcb) {
3872                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3873                                 SCTP_TCB_UNLOCK(stcb);
3874                         } else {
3875                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3876                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3877                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3878                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3879                                         SCTP_INP_WLOCK(inp);
3880                                         inp->sctp_cmt_on_off = av->assoc_value;
3881                                         SCTP_INP_WUNLOCK(inp);
3882                                 }
3883                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3884                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3885                                         SCTP_INP_RLOCK(inp);
3886                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3887                                                 SCTP_TCB_LOCK(stcb);
3888                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3889                                                 SCTP_TCB_UNLOCK(stcb);
3890                                         }
3891                                         SCTP_INP_RUNLOCK(inp);
3892                                 }
3893                         }
3894                 } else {
3895                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3896                         error = ENOPROTOOPT;
3897                 }
3898                 break;
3899         case SCTP_PLUGGABLE_CC:
3900                 {
3901                         struct sctp_assoc_value *av;
3902                         struct sctp_nets *net;
3903
3904                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3905                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3906                             (av->assoc_value != SCTP_CC_HSTCP) &&
3907                             (av->assoc_value != SCTP_CC_HTCP) &&
3908                             (av->assoc_value != SCTP_CC_RTCC)) {
3909                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3910                                 error = EINVAL;
3911                                 break;
3912                         }
3913                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3914                         if (stcb) {
3915                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3916                                 stcb->asoc.congestion_control_module = av->assoc_value;
3917                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3918                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3919                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3920                                         }
3921                                 }
3922                                 SCTP_TCB_UNLOCK(stcb);
3923                         } else {
3924                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3925                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3926                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3927                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3928                                         SCTP_INP_WLOCK(inp);
3929                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3930                                         SCTP_INP_WUNLOCK(inp);
3931                                 }
3932                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3933                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3934                                         SCTP_INP_RLOCK(inp);
3935                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3936                                                 SCTP_TCB_LOCK(stcb);
3937                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3938                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3939                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3940                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3941                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3942                                                         }
3943                                                 }
3944                                                 SCTP_TCB_UNLOCK(stcb);
3945                                         }
3946                                         SCTP_INP_RUNLOCK(inp);
3947                                 }
3948                         }
3949                         break;
3950                 }
3951         case SCTP_CC_OPTION:
3952                 {
3953                         struct sctp_cc_option *cc_opt;
3954
3955                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3956                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3957                         if (stcb == NULL) {
3958                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3959                                         SCTP_INP_RLOCK(inp);
3960                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3961                                                 SCTP_TCB_LOCK(stcb);
3962                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3963                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3964                                                 }
3965                                                 SCTP_TCB_UNLOCK(stcb);
3966                                         }
3967                                         SCTP_INP_RUNLOCK(inp);
3968                                 } else {
3969                                         error = EINVAL;
3970                                 }
3971                         } else {
3972                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3973                                         error = ENOTSUP;
3974                                 } else {
3975                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3976                                             cc_opt);
3977                                 }
3978                                 SCTP_TCB_UNLOCK(stcb);
3979                         }
3980                         break;
3981                 }
3982         case SCTP_PLUGGABLE_SS:
3983                 {
3984                         struct sctp_assoc_value *av;
3985
3986                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3987                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3988                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3989                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3990                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3991                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3992                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3993                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3994                                 error = EINVAL;
3995                                 break;
3996                         }
3997                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3998                         if (stcb) {
3999                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4000                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4001                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4002                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4003                                 SCTP_TCB_UNLOCK(stcb);
4004                         } else {
4005                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4006                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4007                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4008                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4009                                         SCTP_INP_WLOCK(inp);
4010                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4011                                         SCTP_INP_WUNLOCK(inp);
4012                                 }
4013                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4014                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4015                                         SCTP_INP_RLOCK(inp);
4016                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4017                                                 SCTP_TCB_LOCK(stcb);
4018                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4019                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4020                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4021                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4022                                                 SCTP_TCB_UNLOCK(stcb);
4023                                         }
4024                                         SCTP_INP_RUNLOCK(inp);
4025                                 }
4026                         }
4027                         break;
4028                 }
4029         case SCTP_SS_VALUE:
4030                 {
4031                         struct sctp_stream_value *av;
4032
4033                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4034                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4035                         if (stcb) {
4036                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4037                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4038                                     av->stream_value) < 0)) {
4039                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4040                                         error = EINVAL;
4041                                 }
4042                                 SCTP_TCB_UNLOCK(stcb);
4043                         } else {
4044                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4045                                         SCTP_INP_RLOCK(inp);
4046                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4047                                                 SCTP_TCB_LOCK(stcb);
4048                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4049                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4050                                                             &stcb->asoc,
4051                                                             &stcb->asoc.strmout[av->stream_id],
4052                                                             av->stream_value);
4053                                                 }
4054                                                 SCTP_TCB_UNLOCK(stcb);
4055                                         }
4056                                         SCTP_INP_RUNLOCK(inp);
4057                                 } else {
4058                                         /*
4059                                          * Can't set stream value without
4060                                          * association
4061                                          */
4062                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4063                                         error = EINVAL;
4064                                 }
4065                         }
4066                         break;
4067                 }
4068         case SCTP_CLR_STAT_LOG:
4069                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4070                 error = EOPNOTSUPP;
4071                 break;
4072         case SCTP_CONTEXT:
4073                 {
4074                         struct sctp_assoc_value *av;
4075
4076                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4077                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4078
4079                         if (stcb) {
4080                                 stcb->asoc.context = av->assoc_value;
4081                                 SCTP_TCB_UNLOCK(stcb);
4082                         } else {
4083                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4084                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4085                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4086                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4087                                         SCTP_INP_WLOCK(inp);
4088                                         inp->sctp_context = av->assoc_value;
4089                                         SCTP_INP_WUNLOCK(inp);
4090                                 }
4091                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4092                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4093                                         SCTP_INP_RLOCK(inp);
4094                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4095                                                 SCTP_TCB_LOCK(stcb);
4096                                                 stcb->asoc.context = av->assoc_value;
4097                                                 SCTP_TCB_UNLOCK(stcb);
4098                                         }
4099                                         SCTP_INP_RUNLOCK(inp);
4100                                 }
4101                         }
4102                         break;
4103                 }
4104         case SCTP_VRF_ID:
4105                 {
4106                         uint32_t *default_vrfid;
4107
4108                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4109                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4110                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4111                                 error = EINVAL;
4112                                 break;
4113                         }
4114                         inp->def_vrf_id = *default_vrfid;
4115                         break;
4116                 }
4117         case SCTP_DEL_VRF_ID:
4118                 {
4119                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4120                         error = EOPNOTSUPP;
4121                         break;
4122                 }
4123         case SCTP_ADD_VRF_ID:
4124                 {
4125                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4126                         error = EOPNOTSUPP;
4127                         break;
4128                 }
4129         case SCTP_DELAYED_SACK:
4130                 {
4131                         struct sctp_sack_info *sack;
4132
4133                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4134                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4135                         if (sack->sack_delay) {
4136                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4137                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4138                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4139                                         sack->sack_delay = TICKS_TO_MSEC(1);
4140                                 }
4141                         }
4142                         if (stcb) {
4143                                 if (sack->sack_delay) {
4144                                         stcb->asoc.delayed_ack = sack->sack_delay;
4145                                 }
4146                                 if (sack->sack_freq) {
4147                                         stcb->asoc.sack_freq = sack->sack_freq;
4148                                 }
4149                                 SCTP_TCB_UNLOCK(stcb);
4150                         } else {
4151                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4152                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4153                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4154                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4155                                         SCTP_INP_WLOCK(inp);
4156                                         if (sack->sack_delay) {
4157                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4158                                         }
4159                                         if (sack->sack_freq) {
4160                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4161                                         }
4162                                         SCTP_INP_WUNLOCK(inp);
4163                                 }
4164                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4165                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4166                                         SCTP_INP_RLOCK(inp);
4167                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4168                                                 SCTP_TCB_LOCK(stcb);
4169                                                 if (sack->sack_delay) {
4170                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4171                                                 }
4172                                                 if (sack->sack_freq) {
4173                                                         stcb->asoc.sack_freq = sack->sack_freq;
4174                                                 }
4175                                                 SCTP_TCB_UNLOCK(stcb);
4176                                         }
4177                                         SCTP_INP_RUNLOCK(inp);
4178                                 }
4179                         }
4180                         break;
4181                 }
4182         case SCTP_AUTH_CHUNK:
4183                 {
4184                         struct sctp_authchunk *sauth;
4185
4186                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4187
4188                         SCTP_INP_WLOCK(inp);
4189                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4190                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4191                                 error = EINVAL;
4192                         }
4193                         SCTP_INP_WUNLOCK(inp);
4194                         break;
4195                 }
4196         case SCTP_AUTH_KEY:
4197                 {
4198                         struct sctp_authkey *sca;
4199                         struct sctp_keyhead *shared_keys;
4200                         sctp_sharedkey_t *shared_key;
4201                         sctp_key_t *key = NULL;
4202                         size_t size;
4203
4204                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4205                         if (sca->sca_keylength == 0) {
4206                                 size = optsize - sizeof(struct sctp_authkey);
4207                         } else {
4208                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4209                                         size = sca->sca_keylength;
4210                                 } else {
4211                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4212                                         error = EINVAL;
4213                                         break;
4214                                 }
4215                         }
4216                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4217
4218                         if (stcb) {
4219                                 shared_keys = &stcb->asoc.shared_keys;
4220                                 /* clear the cached keys for this key id */
4221                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4222                                 /*
4223                                  * create the new shared key and
4224                                  * insert/replace it
4225                                  */
4226                                 if (size > 0) {
4227                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4228                                         if (key == NULL) {
4229                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4230                                                 error = ENOMEM;
4231                                                 SCTP_TCB_UNLOCK(stcb);
4232                                                 break;
4233                                         }
4234                                 }
4235                                 shared_key = sctp_alloc_sharedkey();
4236                                 if (shared_key == NULL) {
4237                                         sctp_free_key(key);
4238                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4239                                         error = ENOMEM;
4240                                         SCTP_TCB_UNLOCK(stcb);
4241                                         break;
4242                                 }
4243                                 shared_key->key = key;
4244                                 shared_key->keyid = sca->sca_keynumber;
4245                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4246                                 SCTP_TCB_UNLOCK(stcb);
4247                         } else {
4248                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4249                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4250                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4251                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4252                                         SCTP_INP_WLOCK(inp);
4253                                         shared_keys = &inp->sctp_ep.shared_keys;
4254                                         /*
4255                                          * clear the cached keys on all
4256                                          * assocs for this key id
4257                                          */
4258                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4259                                         /*
4260                                          * create the new shared key and
4261                                          * insert/replace it
4262                                          */
4263                                         if (size > 0) {
4264                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4265                                                 if (key == NULL) {
4266                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4267                                                         error = ENOMEM;
4268                                                         SCTP_INP_WUNLOCK(inp);
4269                                                         break;
4270                                                 }
4271                                         }
4272                                         shared_key = sctp_alloc_sharedkey();
4273                                         if (shared_key == NULL) {
4274                                                 sctp_free_key(key);
4275                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4276                                                 error = ENOMEM;
4277                                                 SCTP_INP_WUNLOCK(inp);
4278                                                 break;
4279                                         }
4280                                         shared_key->key = key;
4281                                         shared_key->keyid = sca->sca_keynumber;
4282                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4283                                         SCTP_INP_WUNLOCK(inp);
4284                                 }
4285                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4286                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4287                                         SCTP_INP_RLOCK(inp);
4288                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4289                                                 SCTP_TCB_LOCK(stcb);
4290                                                 shared_keys = &stcb->asoc.shared_keys;
4291                                                 /*
4292                                                  * clear the cached keys for
4293                                                  * this key id
4294                                                  */
4295                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4296                                                 /*
4297                                                  * create the new shared key
4298                                                  * and insert/replace it
4299                                                  */
4300                                                 if (size > 0) {
4301                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4302                                                         if (key == NULL) {
4303                                                                 SCTP_TCB_UNLOCK(stcb);
4304                                                                 continue;
4305                                                         }
4306                                                 }
4307                                                 shared_key = sctp_alloc_sharedkey();
4308                                                 if (shared_key == NULL) {
4309                                                         sctp_free_key(key);
4310                                                         SCTP_TCB_UNLOCK(stcb);
4311                                                         continue;
4312                                                 }
4313                                                 shared_key->key = key;
4314                                                 shared_key->keyid = sca->sca_keynumber;
4315                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4316                                                 SCTP_TCB_UNLOCK(stcb);
4317                                         }
4318                                         SCTP_INP_RUNLOCK(inp);
4319                                 }
4320                         }
4321                         break;
4322                 }
4323         case SCTP_HMAC_IDENT:
4324                 {
4325                         struct sctp_hmacalgo *shmac;
4326                         sctp_hmaclist_t *hmaclist;
4327                         uint16_t hmacid;
4328                         uint32_t i;
4329
4330                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4331                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4332                             (shmac->shmac_number_of_idents > 0xffff)) {
4333                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4334                                 error = EINVAL;
4335                                 break;
4336                         }
4337                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4338                         if (hmaclist == NULL) {
4339                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4340                                 error = ENOMEM;
4341                                 break;
4342                         }
4343                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4344                                 hmacid = shmac->shmac_idents[i];
4345                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4346                                          /* invalid HMACs were found */ ;
4347                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4348                                         error = EINVAL;
4349                                         sctp_free_hmaclist(hmaclist);
4350                                         goto sctp_set_hmac_done;
4351                                 }
4352                         }
4353                         for (i = 0; i < hmaclist->num_algo; i++) {
4354                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4355                                         /* already in list */
4356                                         break;
4357                                 }
4358                         }
4359                         if (i == hmaclist->num_algo) {
4360                                 /* not found in list */
4361                                 sctp_free_hmaclist(hmaclist);
4362                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4363                                 error = EINVAL;
4364                                 break;
4365                         }
4366                         /* set it on the endpoint */
4367                         SCTP_INP_WLOCK(inp);
4368                         if (inp->sctp_ep.local_hmacs)
4369                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4370                         inp->sctp_ep.local_hmacs = hmaclist;
4371                         SCTP_INP_WUNLOCK(inp);
4372         sctp_set_hmac_done:
4373                         break;
4374                 }
4375         case SCTP_AUTH_ACTIVE_KEY:
4376                 {
4377                         struct sctp_authkeyid *scact;
4378
4379                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4380                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4381
4382                         /* set the active key on the right place */
4383                         if (stcb) {
4384                                 /* set the active key on the assoc */
4385                                 if (sctp_auth_setactivekey(stcb,
4386                                     scact->scact_keynumber)) {
4387                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4388                                             SCTP_FROM_SCTP_USRREQ,
4389                                             EINVAL);
4390                                         error = EINVAL;
4391                                 }
4392                                 SCTP_TCB_UNLOCK(stcb);
4393                         } else {
4394                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4395                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4396                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4397                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4398                                         SCTP_INP_WLOCK(inp);
4399                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4400                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4401                                                 error = EINVAL;
4402                                         }
4403                                         SCTP_INP_WUNLOCK(inp);
4404                                 }
4405                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4406                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4407                                         SCTP_INP_RLOCK(inp);
4408                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4409                                                 SCTP_TCB_LOCK(stcb);
4410                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4411                                                 SCTP_TCB_UNLOCK(stcb);
4412                                         }
4413                                         SCTP_INP_RUNLOCK(inp);
4414                                 }
4415                         }
4416                         break;
4417                 }
4418         case SCTP_AUTH_DELETE_KEY:
4419                 {
4420                         struct sctp_authkeyid *scdel;
4421
4422                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4423                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4424
4425                         /* delete the key from the right place */
4426                         if (stcb) {
4427                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4428                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4429                                         error = EINVAL;
4430                                 }
4431                                 SCTP_TCB_UNLOCK(stcb);
4432                         } else {
4433                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4434                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4435                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4436                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4437                                         SCTP_INP_WLOCK(inp);
4438                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4439                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4440                                                 error = EINVAL;
4441                                         }
4442                                         SCTP_INP_WUNLOCK(inp);
4443                                 }
4444                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4445                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4446                                         SCTP_INP_RLOCK(inp);
4447                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4448                                                 SCTP_TCB_LOCK(stcb);
4449                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4450                                                 SCTP_TCB_UNLOCK(stcb);
4451                                         }
4452                                         SCTP_INP_RUNLOCK(inp);
4453                                 }
4454                         }
4455                         break;
4456                 }
4457         case SCTP_AUTH_DEACTIVATE_KEY:
4458                 {
4459                         struct sctp_authkeyid *keyid;
4460
4461                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4462                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4463
4464                         /* deactivate the key from the right place */
4465                         if (stcb) {
4466                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4467                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4468                                         error = EINVAL;
4469                                 }
4470                                 SCTP_TCB_UNLOCK(stcb);
4471                         } else {
4472                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4473                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4474                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4475                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4476                                         SCTP_INP_WLOCK(inp);
4477                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4478                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4479                                                 error = EINVAL;
4480                                         }
4481                                         SCTP_INP_WUNLOCK(inp);
4482                                 }
4483                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4484                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4485                                         SCTP_INP_RLOCK(inp);
4486                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4487                                                 SCTP_TCB_LOCK(stcb);
4488                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4489                                                 SCTP_TCB_UNLOCK(stcb);
4490                                         }
4491                                         SCTP_INP_RUNLOCK(inp);
4492                                 }
4493                         }
4494                         break;
4495                 }
4496         case SCTP_ENABLE_STREAM_RESET:
4497                 {
4498                         struct sctp_assoc_value *av;
4499
4500                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4501                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4502                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4503                                 error = EINVAL;
4504                                 break;
4505                         }
4506                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4507                         if (stcb) {
4508                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4509                                 SCTP_TCB_UNLOCK(stcb);
4510                         } else {
4511                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4512                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4513                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4514                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4515                                         SCTP_INP_WLOCK(inp);
4516                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4517                                         SCTP_INP_WUNLOCK(inp);
4518                                 }
4519                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4520                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4521                                         SCTP_INP_RLOCK(inp);
4522                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4523                                                 SCTP_TCB_LOCK(stcb);
4524                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4525                                                 SCTP_TCB_UNLOCK(stcb);
4526                                         }
4527                                         SCTP_INP_RUNLOCK(inp);
4528                                 }
4529                         }
4530                         break;
4531                 }
4532         case SCTP_RESET_STREAMS:
4533                 {
4534                         struct sctp_reset_streams *strrst;
4535                         int i, send_out = 0;
4536                         int send_in = 0;
4537
4538                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4539                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4540                         if (stcb == NULL) {
4541                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4542                                 error = ENOENT;
4543                                 break;
4544                         }
4545                         if (stcb->asoc.reconfig_supported == 0) {
4546                                 /*
4547                                  * Peer does not support the chunk type.
4548                                  */
4549                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4550                                 error = EOPNOTSUPP;
4551                                 SCTP_TCB_UNLOCK(stcb);
4552                                 break;
4553                         }
4554                         if (sizeof(struct sctp_reset_streams) +
4555                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4556                                 error = EINVAL;
4557                                 SCTP_TCB_UNLOCK(stcb);
4558                                 break;
4559                         }
4560                         if (stcb->asoc.stream_reset_outstanding) {
4561                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4562                                 error = EALREADY;
4563                                 SCTP_TCB_UNLOCK(stcb);
4564                                 break;
4565                         }
4566                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4567                                 send_in = 1;
4568                         }
4569                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4570                                 send_out = 1;
4571                         }
4572                         if ((send_in == 0) && (send_out == 0)) {
4573                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4574                                 error = EINVAL;
4575                                 SCTP_TCB_UNLOCK(stcb);
4576                                 break;
4577                         }
4578                         for (i = 0; i < strrst->srs_number_streams; i++) {
4579                                 if ((send_in) &&
4580                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4581                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4582                                         error = EINVAL;
4583                                         break;
4584                                 }
4585                                 if ((send_out) &&
4586                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4587                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4588                                         error = EINVAL;
4589                                         break;
4590                                 }
4591                         }
4592                         if (error) {
4593                                 SCTP_TCB_UNLOCK(stcb);
4594                                 break;
4595                         }
4596                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4597                             strrst->srs_stream_list,
4598                             send_out, send_in, 0, 0, 0, 0, 0);
4599
4600                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4601                         SCTP_TCB_UNLOCK(stcb);
4602                         break;
4603                 }
4604         case SCTP_ADD_STREAMS:
4605                 {
4606                         struct sctp_add_streams *stradd;
4607                         uint8_t addstream = 0;
4608                         uint16_t add_o_strmcnt = 0;
4609                         uint16_t add_i_strmcnt = 0;
4610
4611                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4612                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4613                         if (stcb == NULL) {
4614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4615                                 error = ENOENT;
4616                                 break;
4617                         }
4618                         if (stcb->asoc.reconfig_supported == 0) {
4619                                 /*
4620                                  * Peer does not support the chunk type.
4621                                  */
4622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4623                                 error = EOPNOTSUPP;
4624                                 SCTP_TCB_UNLOCK(stcb);
4625                                 break;
4626                         }
4627                         if (stcb->asoc.stream_reset_outstanding) {
4628                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4629                                 error = EALREADY;
4630                                 SCTP_TCB_UNLOCK(stcb);
4631                                 break;
4632                         }
4633                         if ((stradd->sas_outstrms == 0) &&
4634                             (stradd->sas_instrms == 0)) {
4635                                 error = EINVAL;
4636                                 goto skip_stuff;
4637                         }
4638                         if (stradd->sas_outstrms) {
4639                                 addstream = 1;
4640                                 /* We allocate here */
4641                                 add_o_strmcnt = stradd->sas_outstrms;
4642                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4643                                         /* You can't have more than 64k */
4644                                         error = EINVAL;
4645                                         goto skip_stuff;
4646                                 }
4647                         }
4648                         if (stradd->sas_instrms) {
4649                                 int cnt;
4650
4651                                 addstream |= 2;
4652                                 /*
4653                                  * We allocate inside
4654                                  * sctp_send_str_reset_req()
4655                                  */
4656                                 add_i_strmcnt = stradd->sas_instrms;
4657                                 cnt = add_i_strmcnt;
4658                                 cnt += stcb->asoc.streamincnt;
4659                                 if (cnt > 0x0000ffff) {
4660                                         /* You can't have more than 64k */
4661                                         error = EINVAL;
4662                                         goto skip_stuff;
4663                                 }
4664                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4665                                         /* More than you are allowed */
4666                                         error = EINVAL;
4667                                         goto skip_stuff;
4668                                 }
4669                         }
4670                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4671                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4672         skip_stuff:
4673                         SCTP_TCB_UNLOCK(stcb);
4674                         break;
4675                 }
4676         case SCTP_RESET_ASSOC:
4677                 {
4678                         uint32_t *value;
4679
4680                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4681                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4682                         if (stcb == NULL) {
4683                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4684                                 error = ENOENT;
4685                                 break;
4686                         }
4687                         if (stcb->asoc.reconfig_supported == 0) {
4688                                 /*
4689                                  * Peer does not support the chunk type.
4690                                  */
4691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4692                                 error = EOPNOTSUPP;
4693                                 SCTP_TCB_UNLOCK(stcb);
4694                                 break;
4695                         }
4696                         if (stcb->asoc.stream_reset_outstanding) {
4697                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4698                                 error = EALREADY;
4699                                 SCTP_TCB_UNLOCK(stcb);
4700                                 break;
4701                         }
4702                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4703                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4704                         SCTP_TCB_UNLOCK(stcb);
4705                         break;
4706                 }
4707         case SCTP_CONNECT_X:
4708                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4709                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4710                         error = EINVAL;
4711                         break;
4712                 }
4713                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4714                 break;
4715         case SCTP_CONNECT_X_DELAYED:
4716                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4717                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4718                         error = EINVAL;
4719                         break;
4720                 }
4721                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4722                 break;
4723         case SCTP_CONNECT_X_COMPLETE:
4724                 {
4725                         struct sockaddr *sa;
4726
4727                         /* FIXME MT: check correct? */
4728                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4729
4730                         /* find tcb */
4731                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4732                                 SCTP_INP_RLOCK(inp);
4733                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4734                                 if (stcb) {
4735                                         SCTP_TCB_LOCK(stcb);
4736                                 }
4737                                 SCTP_INP_RUNLOCK(inp);
4738                         } else {
4739                                 /*
4740                                  * We increment here since
4741                                  * sctp_findassociation_ep_addr() wil do a
4742                                  * decrement if it finds the stcb as long as
4743                                  * the locked tcb (last argument) is NOT a
4744                                  * TCB.. aka NULL.
4745                                  */
4746                                 SCTP_INP_INCR_REF(inp);
4747                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4748                                 if (stcb == NULL) {
4749                                         SCTP_INP_DECR_REF(inp);
4750                                 }
4751                         }
4752
4753                         if (stcb == NULL) {
4754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4755                                 error = ENOENT;
4756                                 break;
4757                         }
4758                         if (stcb->asoc.delayed_connection == 1) {
4759                                 stcb->asoc.delayed_connection = 0;
4760                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4761                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4762                                     stcb->asoc.primary_destination,
4763                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4764                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4765                         } else {
4766                                 /*
4767                                  * already expired or did not use delayed
4768                                  * connectx
4769                                  */
4770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4771                                 error = EALREADY;
4772                         }
4773                         SCTP_TCB_UNLOCK(stcb);
4774                         break;
4775                 }
4776         case SCTP_MAX_BURST:
4777                 {
4778                         struct sctp_assoc_value *av;
4779
4780                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4781                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4782
4783                         if (stcb) {
4784                                 stcb->asoc.max_burst = av->assoc_value;
4785                                 SCTP_TCB_UNLOCK(stcb);
4786                         } else {
4787                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4788                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4789                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4790                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4791                                         SCTP_INP_WLOCK(inp);
4792                                         inp->sctp_ep.max_burst = av->assoc_value;
4793                                         SCTP_INP_WUNLOCK(inp);
4794                                 }
4795                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4796                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4797                                         SCTP_INP_RLOCK(inp);
4798                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4799                                                 SCTP_TCB_LOCK(stcb);
4800                                                 stcb->asoc.max_burst = av->assoc_value;
4801                                                 SCTP_TCB_UNLOCK(stcb);
4802                                         }
4803                                         SCTP_INP_RUNLOCK(inp);
4804                                 }
4805                         }
4806                         break;
4807                 }
4808         case SCTP_MAXSEG:
4809                 {
4810                         struct sctp_assoc_value *av;
4811                         int ovh;
4812
4813                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4814                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4815
4816                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4817                                 ovh = SCTP_MED_OVERHEAD;
4818                         } else {
4819                                 ovh = SCTP_MED_V4_OVERHEAD;
4820                         }
4821                         if (stcb) {
4822                                 if (av->assoc_value) {
4823                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4824                                 } else {
4825                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4826                                 }
4827                                 SCTP_TCB_UNLOCK(stcb);
4828                         } else {
4829                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4830                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4831                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4832                                         SCTP_INP_WLOCK(inp);
4833                                         /*
4834                                          * FIXME MT: I think this is not in
4835                                          * tune with the API ID
4836                                          */
4837                                         if (av->assoc_value) {
4838                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4839                                         } else {
4840                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4841                                         }
4842                                         SCTP_INP_WUNLOCK(inp);
4843                                 } else {
4844                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4845                                         error = EINVAL;
4846                                 }
4847                         }
4848                         break;
4849                 }
4850         case SCTP_EVENTS:
4851                 {
4852                         struct sctp_event_subscribe *events;
4853
4854                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4855
4856                         SCTP_INP_WLOCK(inp);
4857                         if (events->sctp_data_io_event) {
4858                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4859                         } else {
4860                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4861                         }
4862
4863                         if (events->sctp_association_event) {
4864                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4865                         } else {
4866                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4867                         }
4868
4869                         if (events->sctp_address_event) {
4870                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4871                         } else {
4872                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4873                         }
4874
4875                         if (events->sctp_send_failure_event) {
4876                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4877                         } else {
4878                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4879                         }
4880
4881                         if (events->sctp_peer_error_event) {
4882                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4883                         } else {
4884                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4885                         }
4886
4887                         if (events->sctp_shutdown_event) {
4888                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4889                         } else {
4890                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4891                         }
4892
4893                         if (events->sctp_partial_delivery_event) {
4894                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4895                         } else {
4896                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4897                         }
4898
4899                         if (events->sctp_adaptation_layer_event) {
4900                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4901                         } else {
4902                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4903                         }
4904
4905                         if (events->sctp_authentication_event) {
4906                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4907                         } else {
4908                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4909                         }
4910
4911                         if (events->sctp_sender_dry_event) {
4912                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4913                         } else {
4914                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4915                         }
4916
4917                         if (events->sctp_stream_reset_event) {
4918                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4919                         } else {
4920                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4921                         }
4922                         SCTP_INP_WUNLOCK(inp);
4923
4924                         SCTP_INP_RLOCK(inp);
4925                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4926                                 SCTP_TCB_LOCK(stcb);
4927                                 if (events->sctp_association_event) {
4928                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4929                                 } else {
4930                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4931                                 }
4932                                 if (events->sctp_address_event) {
4933                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4934                                 } else {
4935                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4936                                 }
4937                                 if (events->sctp_send_failure_event) {
4938                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4939                                 } else {
4940                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4941                                 }
4942                                 if (events->sctp_peer_error_event) {
4943                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4944                                 } else {
4945                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4946                                 }
4947                                 if (events->sctp_shutdown_event) {
4948                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4949                                 } else {
4950                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4951                                 }
4952                                 if (events->sctp_partial_delivery_event) {
4953                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4954                                 } else {
4955                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4956                                 }
4957                                 if (events->sctp_adaptation_layer_event) {
4958                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4959                                 } else {
4960                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4961                                 }
4962                                 if (events->sctp_authentication_event) {
4963                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4964                                 } else {
4965                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4966                                 }
4967                                 if (events->sctp_sender_dry_event) {
4968                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4969                                 } else {
4970                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4971                                 }
4972                                 if (events->sctp_stream_reset_event) {
4973                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4974                                 } else {
4975                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4976                                 }
4977                                 SCTP_TCB_UNLOCK(stcb);
4978                         }
4979                         /*
4980                          * Send up the sender dry event only for 1-to-1
4981                          * style sockets.
4982                          */
4983                         if (events->sctp_sender_dry_event) {
4984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4985                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4986                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4987                                         if (stcb) {
4988                                                 SCTP_TCB_LOCK(stcb);
4989                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4990                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4991                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4992                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4993                                                 }
4994                                                 SCTP_TCB_UNLOCK(stcb);
4995                                         }
4996                                 }
4997                         }
4998                         SCTP_INP_RUNLOCK(inp);
4999                         break;
5000                 }
5001         case SCTP_ADAPTATION_LAYER:
5002                 {
5003                         struct sctp_setadaptation *adap_bits;
5004
5005                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5006                         SCTP_INP_WLOCK(inp);
5007                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5008                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5009                         SCTP_INP_WUNLOCK(inp);
5010                         break;
5011                 }
5012 #ifdef SCTP_DEBUG
5013         case SCTP_SET_INITIAL_DBG_SEQ:
5014                 {
5015                         uint32_t *vvv;
5016
5017                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5018                         SCTP_INP_WLOCK(inp);
5019                         inp->sctp_ep.initial_sequence_debug = *vvv;
5020                         SCTP_INP_WUNLOCK(inp);
5021                         break;
5022                 }
5023 #endif
5024         case SCTP_DEFAULT_SEND_PARAM:
5025                 {
5026                         struct sctp_sndrcvinfo *s_info;
5027
5028                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5029                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5030
5031                         if (stcb) {
5032                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5033                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5034                                 } else {
5035                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5036                                         error = EINVAL;
5037                                 }
5038                                 SCTP_TCB_UNLOCK(stcb);
5039                         } else {
5040                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5041                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5042                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5043                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5044                                         SCTP_INP_WLOCK(inp);
5045                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5046                                         SCTP_INP_WUNLOCK(inp);
5047                                 }
5048                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5049                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5050                                         SCTP_INP_RLOCK(inp);
5051                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5052                                                 SCTP_TCB_LOCK(stcb);
5053                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5054                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5055                                                 }
5056                                                 SCTP_TCB_UNLOCK(stcb);
5057                                         }
5058                                         SCTP_INP_RUNLOCK(inp);
5059                                 }
5060                         }
5061                         break;
5062                 }
5063         case SCTP_PEER_ADDR_PARAMS:
5064                 {
5065                         struct sctp_paddrparams *paddrp;
5066                         struct sctp_nets *net;
5067                         struct sockaddr *addr;
5068
5069 #if defined(INET) && defined(INET6)
5070                         struct sockaddr_in sin_store;
5071
5072 #endif
5073
5074                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5075                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5076
5077 #if defined(INET) && defined(INET6)
5078                         if (paddrp->spp_address.ss_family == AF_INET6) {
5079                                 struct sockaddr_in6 *sin6;
5080
5081                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5082                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5083                                         in6_sin6_2_sin(&sin_store, sin6);
5084                                         addr = (struct sockaddr *)&sin_store;
5085                                 } else {
5086                                         addr = (struct sockaddr *)&paddrp->spp_address;
5087                                 }
5088                         } else {
5089                                 addr = (struct sockaddr *)&paddrp->spp_address;
5090                         }
5091 #else
5092                         addr = (struct sockaddr *)&paddrp->spp_address;
5093 #endif
5094                         if (stcb != NULL) {
5095                                 net = sctp_findnet(stcb, addr);
5096                         } else {
5097                                 /*
5098                                  * We increment here since
5099                                  * sctp_findassociation_ep_addr() wil do a
5100                                  * decrement if it finds the stcb as long as
5101                                  * the locked tcb (last argument) is NOT a
5102                                  * TCB.. aka NULL.
5103                                  */
5104                                 net = NULL;
5105                                 SCTP_INP_INCR_REF(inp);
5106                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5107                                     &net, NULL, NULL);
5108                                 if (stcb == NULL) {
5109                                         SCTP_INP_DECR_REF(inp);
5110                                 }
5111                         }
5112                         if ((stcb != NULL) && (net == NULL)) {
5113 #ifdef INET
5114                                 if (addr->sa_family == AF_INET) {
5115
5116                                         struct sockaddr_in *sin;
5117
5118                                         sin = (struct sockaddr_in *)addr;
5119                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5120                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5121                                                 SCTP_TCB_UNLOCK(stcb);
5122                                                 error = EINVAL;
5123                                                 break;
5124                                         }
5125                                 } else
5126 #endif
5127 #ifdef INET6
5128                                 if (addr->sa_family == AF_INET6) {
5129                                         struct sockaddr_in6 *sin6;
5130
5131                                         sin6 = (struct sockaddr_in6 *)addr;
5132                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5133                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5134                                                 SCTP_TCB_UNLOCK(stcb);
5135                                                 error = EINVAL;
5136                                                 break;
5137                                         }
5138                                 } else
5139 #endif
5140                                 {
5141                                         error = EAFNOSUPPORT;
5142                                         SCTP_TCB_UNLOCK(stcb);
5143                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5144                                         break;
5145                                 }
5146                         }
5147                         /* sanity checks */
5148                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5149                                 if (stcb)
5150                                         SCTP_TCB_UNLOCK(stcb);
5151                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5152                                 return (EINVAL);
5153                         }
5154                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5155                                 if (stcb)
5156                                         SCTP_TCB_UNLOCK(stcb);
5157                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5158                                 return (EINVAL);
5159                         }
5160                         if (stcb != NULL) {
5161                                 /************************TCB SPECIFIC SET ******************/
5162                                 /*
5163                                  * do we change the timer for HB, we run
5164                                  * only one?
5165                                  */
5166                                 int ovh = 0;
5167
5168                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5169                                         ovh = SCTP_MED_OVERHEAD;
5170                                 } else {
5171                                         ovh = SCTP_MED_V4_OVERHEAD;
5172                                 }
5173
5174                                 /* network sets ? */
5175                                 if (net != NULL) {
5176                                         /************************NET SPECIFIC SET ******************/
5177                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5178                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5179                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5180                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5181                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5182                                                 }
5183                                                 net->dest_state |= SCTP_ADDR_NOHB;
5184                                         }
5185                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5186                                                 if (paddrp->spp_hbinterval) {
5187                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5188                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5189                                                         net->heart_beat_delay = 0;
5190                                                 }
5191                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5192                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5193                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5194                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5195                                         }
5196                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5197                                                 /* on demand HB */
5198                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5199                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5200                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5201                                         }
5202                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5203                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5204                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5205                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5206                                                 }
5207                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5208                                                 net->mtu = paddrp->spp_pathmtu + ovh;
5209                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5210                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5211                                                 }
5212                                         }
5213                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5214                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5215                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5216                                                 }
5217                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5218                                         }
5219                                         if (paddrp->spp_pathmaxrxt) {
5220                                                 if (net->dest_state & SCTP_ADDR_PF) {
5221                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5222                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5223                                                         }
5224                                                 } else {
5225                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5226                                                             (net->error_count > net->pf_threshold)) {
5227                                                                 net->dest_state |= SCTP_ADDR_PF;
5228                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5229                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5230                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5231                                                         }
5232                                                 }
5233                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5234                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5235                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5236                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5237                                                         }
5238                                                 } else {
5239                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5240                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5241                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5242                                                         }
5243                                                 }
5244                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5245                                         }
5246                                         if (paddrp->spp_flags & SPP_DSCP) {
5247                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5248                                                 net->dscp |= 0x01;
5249                                         }
5250 #ifdef INET6
5251                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5252                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5253                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5254                                                         net->flowlabel |= 0x80000000;
5255                                                 }
5256                                         }
5257 #endif
5258                                 } else {
5259                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5260                                         if (paddrp->spp_pathmaxrxt != 0) {
5261                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5262                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5263                                                         if (net->dest_state & SCTP_ADDR_PF) {
5264                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5265                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5266                                                                 }
5267                                                         } else {
5268                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5269                                                                     (net->error_count > net->pf_threshold)) {
5270                                                                         net->dest_state |= SCTP_ADDR_PF;
5271                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5272                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5273                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5274                                                                 }
5275                                                         }
5276                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5277                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5278                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5279                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5280                                                                 }
5281                                                         } else {
5282                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5283                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5284                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5285                                                                 }
5286                                                         }
5287                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5288                                                 }
5289                                         }
5290                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5291                                                 if (paddrp->spp_hbinterval != 0) {
5292                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5293                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5294                                                         stcb->asoc.heart_beat_delay = 0;
5295                                                 }
5296                                                 /* Turn back on the timer */
5297                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5298                                                         if (paddrp->spp_hbinterval != 0) {
5299                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5300                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5301                                                                 net->heart_beat_delay = 0;
5302                                                         }
5303                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5304                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5305                                                         }
5306                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5307                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5308                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5309                                                 }
5310                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5311                                         }
5312                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5313                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5314                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5315                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5316                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5317                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5318                                                                 }
5319                                                         }
5320                                                 }
5321                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5322                                         }
5323                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5324                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5325                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5326                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5327                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5328                                                         }
5329                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5330                                                         net->mtu = paddrp->spp_pathmtu + ovh;
5331                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5332                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5333                                                         }
5334                                                 }
5335                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5336                                         }
5337                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5338                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5339                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5340                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5341                                                         }
5342                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5343                                                 }
5344                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5345                                         }
5346                                         if (paddrp->spp_flags & SPP_DSCP) {
5347                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5348                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5349                                                         net->dscp |= 0x01;
5350                                                 }
5351                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5352                                                 stcb->asoc.default_dscp |= 0x01;
5353                                         }
5354 #ifdef INET6
5355                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5356                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5357                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5358                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5359                                                                 net->flowlabel |= 0x80000000;
5360                                                         }
5361                                                 }
5362                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5363                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5364                                         }
5365 #endif
5366                                 }
5367                                 SCTP_TCB_UNLOCK(stcb);
5368                         } else {
5369                                 /************************NO TCB, SET TO default stuff ******************/
5370                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5371                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5372                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5373                                         SCTP_INP_WLOCK(inp);
5374                                         /*
5375                                          * For the TOS/FLOWLABEL stuff you
5376                                          * set it with the options on the
5377                                          * socket
5378                                          */
5379                                         if (paddrp->spp_pathmaxrxt != 0) {
5380                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5381                                         }
5382                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5383                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5384                                         else if (paddrp->spp_hbinterval != 0) {
5385                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5386                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5387                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5388                                         }
5389                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5390                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5391                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5392                                                 } else if (paddrp->spp_hbinterval) {
5393                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5394                                                 }
5395                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5396                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5397                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5398                                         }
5399                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5400                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5401                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5402                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5403                                         }
5404                                         if (paddrp->spp_flags & SPP_DSCP) {
5405                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5406                                                 inp->sctp_ep.default_dscp |= 0x01;
5407                                         }
5408 #ifdef INET6
5409                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5410                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5411                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5412                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5413                                                 }
5414                                         }
5415 #endif
5416                                         SCTP_INP_WUNLOCK(inp);
5417                                 } else {
5418                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5419                                         error = EINVAL;
5420                                 }
5421                         }
5422                         break;
5423                 }
5424         case SCTP_RTOINFO:
5425                 {
5426                         struct sctp_rtoinfo *srto;
5427                         uint32_t new_init, new_min, new_max;
5428
5429                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5430                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5431
5432                         if (stcb) {
5433                                 if (srto->srto_initial)
5434                                         new_init = srto->srto_initial;
5435                                 else
5436                                         new_init = stcb->asoc.initial_rto;
5437                                 if (srto->srto_max)
5438                                         new_max = srto->srto_max;
5439                                 else
5440                                         new_max = stcb->asoc.maxrto;
5441                                 if (srto->srto_min)
5442                                         new_min = srto->srto_min;
5443                                 else
5444                                         new_min = stcb->asoc.minrto;
5445                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5446                                         stcb->asoc.initial_rto = new_init;
5447                                         stcb->asoc.maxrto = new_max;
5448                                         stcb->asoc.minrto = new_min;
5449                                 } else {
5450                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5451                                         error = EINVAL;
5452                                 }
5453                                 SCTP_TCB_UNLOCK(stcb);
5454                         } else {
5455                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5456                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5457                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5458                                         SCTP_INP_WLOCK(inp);
5459                                         if (srto->srto_initial)
5460                                                 new_init = srto->srto_initial;
5461                                         else
5462                                                 new_init = inp->sctp_ep.initial_rto;
5463                                         if (srto->srto_max)
5464                                                 new_max = srto->srto_max;
5465                                         else
5466                                                 new_max = inp->sctp_ep.sctp_maxrto;
5467                                         if (srto->srto_min)
5468                                                 new_min = srto->srto_min;
5469                                         else
5470                                                 new_min = inp->sctp_ep.sctp_minrto;
5471                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5472                                                 inp->sctp_ep.initial_rto = new_init;
5473                                                 inp->sctp_ep.sctp_maxrto = new_max;
5474                                                 inp->sctp_ep.sctp_minrto = new_min;
5475                                         } else {
5476                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5477                                                 error = EINVAL;
5478                                         }
5479                                         SCTP_INP_WUNLOCK(inp);
5480                                 } else {
5481                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5482                                         error = EINVAL;
5483                                 }
5484                         }
5485                         break;
5486                 }
5487         case SCTP_ASSOCINFO:
5488                 {
5489                         struct sctp_assocparams *sasoc;
5490
5491                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5492                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5493                         if (sasoc->sasoc_cookie_life) {
5494                                 /* boundary check the cookie life */
5495                                 if (sasoc->sasoc_cookie_life < 1000)
5496                                         sasoc->sasoc_cookie_life = 1000;
5497                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5498                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5499                                 }
5500                         }
5501                         if (stcb) {
5502                                 if (sasoc->sasoc_asocmaxrxt)
5503                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5504                                 if (sasoc->sasoc_cookie_life) {
5505                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5506                                 }
5507                                 SCTP_TCB_UNLOCK(stcb);
5508                         } else {
5509                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5510                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5511                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5512                                         SCTP_INP_WLOCK(inp);
5513                                         if (sasoc->sasoc_asocmaxrxt)
5514                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5515                                         if (sasoc->sasoc_cookie_life) {
5516                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5517                                         }
5518                                         SCTP_INP_WUNLOCK(inp);
5519                                 } else {
5520                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5521                                         error = EINVAL;
5522                                 }
5523                         }
5524                         break;
5525                 }
5526         case SCTP_INITMSG:
5527                 {
5528                         struct sctp_initmsg *sinit;
5529
5530                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5531                         SCTP_INP_WLOCK(inp);
5532                         if (sinit->sinit_num_ostreams)
5533                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5534
5535                         if (sinit->sinit_max_instreams)
5536                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5537
5538                         if (sinit->sinit_max_attempts)
5539                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5540
5541                         if (sinit->sinit_max_init_timeo)
5542                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5543                         SCTP_INP_WUNLOCK(inp);
5544                         break;
5545                 }
5546         case SCTP_PRIMARY_ADDR:
5547                 {
5548                         struct sctp_setprim *spa;
5549                         struct sctp_nets *net;
5550                         struct sockaddr *addr;
5551
5552 #if defined(INET) && defined(INET6)
5553                         struct sockaddr_in sin_store;
5554
5555 #endif
5556
5557                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5558                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5559
5560 #if defined(INET) && defined(INET6)
5561                         if (spa->ssp_addr.ss_family == AF_INET6) {
5562                                 struct sockaddr_in6 *sin6;
5563
5564                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5565                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5566                                         in6_sin6_2_sin(&sin_store, sin6);
5567                                         addr = (struct sockaddr *)&sin_store;
5568                                 } else {
5569                                         addr = (struct sockaddr *)&spa->ssp_addr;
5570                                 }
5571                         } else {
5572                                 addr = (struct sockaddr *)&spa->ssp_addr;
5573                         }
5574 #else
5575                         addr = (struct sockaddr *)&spa->ssp_addr;
5576 #endif
5577                         if (stcb != NULL) {
5578                                 net = sctp_findnet(stcb, addr);
5579                         } else {
5580                                 /*
5581                                  * We increment here since
5582                                  * sctp_findassociation_ep_addr() wil do a
5583                                  * decrement if it finds the stcb as long as
5584                                  * the locked tcb (last argument) is NOT a
5585                                  * TCB.. aka NULL.
5586                                  */
5587                                 net = NULL;
5588                                 SCTP_INP_INCR_REF(inp);
5589                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5590                                     &net, NULL, NULL);
5591                                 if (stcb == NULL) {
5592                                         SCTP_INP_DECR_REF(inp);
5593                                 }
5594                         }
5595
5596                         if ((stcb != NULL) && (net != NULL)) {
5597                                 if ((net != stcb->asoc.primary_destination) &&
5598                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5599                                         /* Ok we need to set it */
5600                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5601                                                 if ((stcb->asoc.alternate) &&
5602                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5603                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5604                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5605                                                         stcb->asoc.alternate = NULL;
5606                                                 }
5607                                         }
5608                                 }
5609                         } else {
5610                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5611                                 error = EINVAL;
5612                         }
5613                         if (stcb != NULL) {
5614                                 SCTP_TCB_UNLOCK(stcb);
5615                         }
5616                         break;
5617                 }
5618         case SCTP_SET_DYNAMIC_PRIMARY:
5619                 {
5620                         union sctp_sockstore *ss;
5621
5622                         error = priv_check(curthread,
5623                             PRIV_NETINET_RESERVEDPORT);
5624                         if (error)
5625                                 break;
5626
5627                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5628                         /* SUPER USER CHECK? */
5629                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5630                         break;
5631                 }
5632         case SCTP_SET_PEER_PRIMARY_ADDR:
5633                 {
5634                         struct sctp_setpeerprim *sspp;
5635                         struct sockaddr *addr;
5636
5637 #if defined(INET) && defined(INET6)
5638                         struct sockaddr_in sin_store;
5639
5640 #endif
5641
5642                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5643                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5644                         if (stcb != NULL) {
5645                                 struct sctp_ifa *ifa;
5646
5647 #if defined(INET) && defined(INET6)
5648                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5649                                         struct sockaddr_in6 *sin6;
5650
5651                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5652                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5653                                                 in6_sin6_2_sin(&sin_store, sin6);
5654                                                 addr = (struct sockaddr *)&sin_store;
5655                                         } else {
5656                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5657                                         }
5658                                 } else {
5659                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5660                                 }
5661 #else
5662                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5663 #endif
5664                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5665                                 if (ifa == NULL) {
5666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5667                                         error = EINVAL;
5668                                         goto out_of_it;
5669                                 }
5670                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5671                                         /*
5672                                          * Must validate the ifa found is in
5673                                          * our ep
5674                                          */
5675                                         struct sctp_laddr *laddr;
5676                                         int found = 0;
5677
5678                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5679                                                 if (laddr->ifa == NULL) {
5680                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5681                                                             __FUNCTION__);
5682                                                         continue;
5683                                                 }
5684                                                 if (laddr->ifa == ifa) {
5685                                                         found = 1;
5686                                                         break;
5687                                                 }
5688                                         }
5689                                         if (!found) {
5690                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5691                                                 error = EINVAL;
5692                                                 goto out_of_it;
5693                                         }
5694                                 } else {
5695                                         switch (addr->sa_family) {
5696 #ifdef INET
5697                                         case AF_INET:
5698                                                 {
5699                                                         struct sockaddr_in *sin;
5700
5701                                                         sin = (struct sockaddr_in *)addr;
5702                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5703                                                             &sin->sin_addr) != 0) {
5704                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5705                                                                 error = EINVAL;
5706                                                                 goto out_of_it;
5707                                                         }
5708                                                         break;
5709                                                 }
5710 #endif
5711 #ifdef INET6
5712                                         case AF_INET6:
5713                                                 {
5714                                                         struct sockaddr_in6 *sin6;
5715
5716                                                         sin6 = (struct sockaddr_in6 *)addr;
5717                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5718                                                             &sin6->sin6_addr) != 0) {
5719                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5720                                                                 error = EINVAL;
5721                                                                 goto out_of_it;
5722                                                         }
5723                                                         break;
5724                                                 }
5725 #endif
5726                                         default:
5727                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5728                                                 error = EINVAL;
5729                                                 goto out_of_it;
5730                                         }
5731                                 }
5732                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5733                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5734                                         error = EINVAL;
5735                                 }
5736                 out_of_it:
5737                                 SCTP_TCB_UNLOCK(stcb);
5738                         } else {
5739                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5740                                 error = EINVAL;
5741                         }
5742                         break;
5743                 }
5744         case SCTP_BINDX_ADD_ADDR:
5745                 {
5746                         struct sctp_getaddresses *addrs;
5747                         struct thread *td;
5748
5749                         td = (struct thread *)p;
5750                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5751                             optsize);
5752 #ifdef INET
5753                         if (addrs->addr->sa_family == AF_INET) {
5754                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5755                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5756                                         error = EINVAL;
5757                                         break;
5758                                 }
5759                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5760                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5761                                         break;
5762                                 }
5763                         } else
5764 #endif
5765 #ifdef INET6
5766                         if (addrs->addr->sa_family == AF_INET6) {
5767                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5768                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5769                                         error = EINVAL;
5770                                         break;
5771                                 }
5772                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5773                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5774                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5775                                         break;
5776                                 }
5777                         } else
5778 #endif
5779                         {
5780                                 error = EAFNOSUPPORT;
5781                                 break;
5782                         }
5783                         sctp_bindx_add_address(so, inp, addrs->addr,
5784                             addrs->sget_assoc_id, vrf_id,
5785                             &error, p);
5786                         break;
5787                 }
5788         case SCTP_BINDX_REM_ADDR:
5789                 {
5790                         struct sctp_getaddresses *addrs;
5791                         struct thread *td;
5792
5793                         td = (struct thread *)p;
5794
5795                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5796 #ifdef INET
5797                         if (addrs->addr->sa_family == AF_INET) {
5798                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5799                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5800                                         error = EINVAL;
5801                                         break;
5802                                 }
5803                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5804                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5805                                         break;
5806                                 }
5807                         } else
5808 #endif
5809 #ifdef INET6
5810                         if (addrs->addr->sa_family == AF_INET6) {
5811                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5812                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5813                                         error = EINVAL;
5814                                         break;
5815                                 }
5816                                 if (td != NULL &&
5817                                     (error = prison_local_ip6(td->td_ucred,
5818                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5819                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5820                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5821                                         break;
5822                                 }
5823                         } else
5824 #endif
5825                         {
5826                                 error = EAFNOSUPPORT;
5827                                 break;
5828                         }
5829                         sctp_bindx_delete_address(inp, addrs->addr,
5830                             addrs->sget_assoc_id, vrf_id,
5831                             &error);
5832                         break;
5833                 }
5834         case SCTP_EVENT:
5835                 {
5836                         struct sctp_event *event;
5837                         uint32_t event_type;
5838
5839                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5840                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5841                         switch (event->se_type) {
5842                         case SCTP_ASSOC_CHANGE:
5843                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5844                                 break;
5845                         case SCTP_PEER_ADDR_CHANGE:
5846                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5847                                 break;
5848                         case SCTP_REMOTE_ERROR:
5849                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5850                                 break;
5851                         case SCTP_SEND_FAILED:
5852                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5853                                 break;
5854                         case SCTP_SHUTDOWN_EVENT:
5855                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5856                                 break;
5857                         case SCTP_ADAPTATION_INDICATION:
5858                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5859                                 break;
5860                         case SCTP_PARTIAL_DELIVERY_EVENT:
5861                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5862                                 break;
5863                         case SCTP_AUTHENTICATION_EVENT:
5864                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5865                                 break;
5866                         case SCTP_STREAM_RESET_EVENT:
5867                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5868                                 break;
5869                         case SCTP_SENDER_DRY_EVENT:
5870                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5871                                 break;
5872                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5873                                 event_type = 0;
5874                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5875                                 error = ENOTSUP;
5876                                 break;
5877                         case SCTP_ASSOC_RESET_EVENT:
5878                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5879                                 break;
5880                         case SCTP_STREAM_CHANGE_EVENT:
5881                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5882                                 break;
5883                         case SCTP_SEND_FAILED_EVENT:
5884                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5885                                 break;
5886                         default:
5887                                 event_type = 0;
5888                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5889                                 error = EINVAL;
5890                                 break;
5891                         }
5892                         if (event_type > 0) {
5893                                 if (stcb) {
5894                                         if (event->se_on) {
5895                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5896                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5897                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5898                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5899                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5900                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5901                                                         }
5902                                                 }
5903                                         } else {
5904                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5905                                         }
5906                                         SCTP_TCB_UNLOCK(stcb);
5907                                 } else {
5908                                         /*
5909                                          * We don't want to send up a storm
5910                                          * of events, so return an error for
5911                                          * sender dry events
5912                                          */
5913                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5914                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5915                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5916                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5917                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5918                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5919                                                 error = ENOTSUP;
5920                                                 break;
5921                                         }
5922                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5923                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5924                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5925                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5926                                                 SCTP_INP_WLOCK(inp);
5927                                                 if (event->se_on) {
5928                                                         sctp_feature_on(inp, event_type);
5929                                                 } else {
5930                                                         sctp_feature_off(inp, event_type);
5931                                                 }
5932                                                 SCTP_INP_WUNLOCK(inp);
5933                                         }
5934                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5935                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5936                                                 SCTP_INP_RLOCK(inp);
5937                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5938                                                         SCTP_TCB_LOCK(stcb);
5939                                                         if (event->se_on) {
5940                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5941                                                         } else {
5942                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5943                                                         }
5944                                                         SCTP_TCB_UNLOCK(stcb);
5945                                                 }
5946                                                 SCTP_INP_RUNLOCK(inp);
5947                                         }
5948                                 }
5949                         }
5950                         break;
5951                 }
5952         case SCTP_RECVRCVINFO:
5953                 {
5954                         int *onoff;
5955
5956                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5957                         SCTP_INP_WLOCK(inp);
5958                         if (*onoff != 0) {
5959                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5960                         } else {
5961                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5962                         }
5963                         SCTP_INP_WUNLOCK(inp);
5964                         break;
5965                 }
5966         case SCTP_RECVNXTINFO:
5967                 {
5968                         int *onoff;
5969
5970                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5971                         SCTP_INP_WLOCK(inp);
5972                         if (*onoff != 0) {
5973                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5974                         } else {
5975                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5976                         }
5977                         SCTP_INP_WUNLOCK(inp);
5978                         break;
5979                 }
5980         case SCTP_DEFAULT_SNDINFO:
5981                 {
5982                         struct sctp_sndinfo *info;
5983                         uint16_t policy;
5984
5985                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5986                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5987
5988                         if (stcb) {
5989                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5990                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5991                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5992                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5993                                         stcb->asoc.def_send.sinfo_flags |= policy;
5994                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5995                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5996                                 } else {
5997                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5998                                         error = EINVAL;
5999                                 }
6000                                 SCTP_TCB_UNLOCK(stcb);
6001                         } else {
6002                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6003                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6004                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6005                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6006                                         SCTP_INP_WLOCK(inp);
6007                                         inp->def_send.sinfo_stream = info->snd_sid;
6008                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6009                                         inp->def_send.sinfo_flags = info->snd_flags;
6010                                         inp->def_send.sinfo_flags |= policy;
6011                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6012                                         inp->def_send.sinfo_context = info->snd_context;
6013                                         SCTP_INP_WUNLOCK(inp);
6014                                 }
6015                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6016                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6017                                         SCTP_INP_RLOCK(inp);
6018                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6019                                                 SCTP_TCB_LOCK(stcb);
6020                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6021                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6022                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6023                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6024                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6025                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6026                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6027                                                 }
6028                                                 SCTP_TCB_UNLOCK(stcb);
6029                                         }
6030                                         SCTP_INP_RUNLOCK(inp);
6031                                 }
6032                         }
6033                         break;
6034                 }
6035         case SCTP_DEFAULT_PRINFO:
6036                 {
6037                         struct sctp_default_prinfo *info;
6038
6039                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6040                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6041
6042                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6043                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6044                                 error = EINVAL;
6045                                 break;
6046                         }
6047                         if (stcb) {
6048                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6049                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6050                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6051                                 SCTP_TCB_UNLOCK(stcb);
6052                         } else {
6053                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6054                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6055                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6056                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6057                                         SCTP_INP_WLOCK(inp);
6058                                         inp->def_send.sinfo_flags &= 0xfff0;
6059                                         inp->def_send.sinfo_flags |= info->pr_policy;
6060                                         inp->def_send.sinfo_timetolive = info->pr_value;
6061                                         SCTP_INP_WUNLOCK(inp);
6062                                 }
6063                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6064                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6065                                         SCTP_INP_RLOCK(inp);
6066                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6067                                                 SCTP_TCB_LOCK(stcb);
6068                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6069                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6070                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6071                                                 SCTP_TCB_UNLOCK(stcb);
6072                                         }
6073                                         SCTP_INP_RUNLOCK(inp);
6074                                 }
6075                         }
6076                         break;
6077                 }
6078         case SCTP_PEER_ADDR_THLDS:
6079                 /* Applies to the specific association */
6080                 {
6081                         struct sctp_paddrthlds *thlds;
6082                         struct sctp_nets *net;
6083                         struct sockaddr *addr;
6084
6085 #if defined(INET) && defined(INET6)
6086                         struct sockaddr_in sin_store;
6087
6088 #endif
6089
6090                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6091                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6092
6093 #if defined(INET) && defined(INET6)
6094                         if (thlds->spt_address.ss_family == AF_INET6) {
6095                                 struct sockaddr_in6 *sin6;
6096
6097                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6098                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6099                                         in6_sin6_2_sin(&sin_store, sin6);
6100                                         addr = (struct sockaddr *)&sin_store;
6101                                 } else {
6102                                         addr = (struct sockaddr *)&thlds->spt_address;
6103                                 }
6104                         } else {
6105                                 addr = (struct sockaddr *)&thlds->spt_address;
6106                         }
6107 #else
6108                         addr = (struct sockaddr *)&thlds->spt_address;
6109 #endif
6110                         if (stcb != NULL) {
6111                                 net = sctp_findnet(stcb, addr);
6112                         } else {
6113                                 /*
6114                                  * We increment here since
6115                                  * sctp_findassociation_ep_addr() wil do a
6116                                  * decrement if it finds the stcb as long as
6117                                  * the locked tcb (last argument) is NOT a
6118                                  * TCB.. aka NULL.
6119                                  */
6120                                 net = NULL;
6121                                 SCTP_INP_INCR_REF(inp);
6122                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6123                                     &net, NULL, NULL);
6124                                 if (stcb == NULL) {
6125                                         SCTP_INP_DECR_REF(inp);
6126                                 }
6127                         }
6128                         if ((stcb != NULL) && (net == NULL)) {
6129 #ifdef INET
6130                                 if (addr->sa_family == AF_INET) {
6131
6132                                         struct sockaddr_in *sin;
6133
6134                                         sin = (struct sockaddr_in *)addr;
6135                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6136                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6137                                                 SCTP_TCB_UNLOCK(stcb);
6138                                                 error = EINVAL;
6139                                                 break;
6140                                         }
6141                                 } else
6142 #endif
6143 #ifdef INET6
6144                                 if (addr->sa_family == AF_INET6) {
6145                                         struct sockaddr_in6 *sin6;
6146
6147                                         sin6 = (struct sockaddr_in6 *)addr;
6148                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6149                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6150                                                 SCTP_TCB_UNLOCK(stcb);
6151                                                 error = EINVAL;
6152                                                 break;
6153                                         }
6154                                 } else
6155 #endif
6156                                 {
6157                                         error = EAFNOSUPPORT;
6158                                         SCTP_TCB_UNLOCK(stcb);
6159                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6160                                         break;
6161                                 }
6162                         }
6163                         if (stcb != NULL) {
6164                                 if (net != NULL) {
6165                                         if (net->dest_state & SCTP_ADDR_PF) {
6166                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
6167                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
6168                                                         net->dest_state &= ~SCTP_ADDR_PF;
6169                                                 }
6170                                         } else {
6171                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
6172                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
6173                                                         net->dest_state |= SCTP_ADDR_PF;
6174                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6175                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6176                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6177                                                 }
6178                                         }
6179                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6180                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
6181                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6182                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6183                                                 }
6184                                         } else {
6185                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
6186                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6187                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6188                                                 }
6189                                         }
6190                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6191                                         net->pf_threshold = thlds->spt_pathpfthld;
6192                                 } else {
6193                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6194                                                 if (net->dest_state & SCTP_ADDR_PF) {
6195                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
6196                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
6197                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6198                                                         }
6199                                                 } else {
6200                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
6201                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
6202                                                                 net->dest_state |= SCTP_ADDR_PF;
6203                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6204                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6205                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6206                                                         }
6207                                                 }
6208                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6209                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
6210                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6211                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6212                                                         }
6213                                                 } else {
6214                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
6215                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6216                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6217                                                         }
6218                                                 }
6219                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6220                                                 net->pf_threshold = thlds->spt_pathpfthld;
6221                                         }
6222                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6223                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6224                                 }
6225                         } else {
6226                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6227                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6228                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6229                                         SCTP_INP_WLOCK(inp);
6230                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6231                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6232                                         SCTP_INP_WUNLOCK(inp);
6233                                 } else {
6234                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6235                                         error = EINVAL;
6236                                 }
6237                         }
6238                         break;
6239                 }
6240         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6241                 {
6242                         struct sctp_udpencaps *encaps;
6243                         struct sctp_nets *net;
6244                         struct sockaddr *addr;
6245
6246 #if defined(INET) && defined(INET6)
6247                         struct sockaddr_in sin_store;
6248
6249 #endif
6250
6251                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6252                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6253
6254 #if defined(INET) && defined(INET6)
6255                         if (encaps->sue_address.ss_family == AF_INET6) {
6256                                 struct sockaddr_in6 *sin6;
6257
6258                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6259                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6260                                         in6_sin6_2_sin(&sin_store, sin6);
6261                                         addr = (struct sockaddr *)&sin_store;
6262                                 } else {
6263                                         addr = (struct sockaddr *)&encaps->sue_address;
6264                                 }
6265                         } else {
6266                                 addr = (struct sockaddr *)&encaps->sue_address;
6267                         }
6268 #else
6269                         addr = (struct sockaddr *)&encaps->sue_address;
6270 #endif
6271                         if (stcb != NULL) {
6272                                 net = sctp_findnet(stcb, addr);
6273                         } else {
6274                                 /*
6275                                  * We increment here since
6276                                  * sctp_findassociation_ep_addr() wil do a
6277                                  * decrement if it finds the stcb as long as
6278                                  * the locked tcb (last argument) is NOT a
6279                                  * TCB.. aka NULL.
6280                                  */
6281                                 net = NULL;
6282                                 SCTP_INP_INCR_REF(inp);
6283                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6284                                 if (stcb == NULL) {
6285                                         SCTP_INP_DECR_REF(inp);
6286                                 }
6287                         }
6288                         if ((stcb != NULL) && (net == NULL)) {
6289 #ifdef INET
6290                                 if (addr->sa_family == AF_INET) {
6291
6292                                         struct sockaddr_in *sin;
6293
6294                                         sin = (struct sockaddr_in *)addr;
6295                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6296                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6297                                                 SCTP_TCB_UNLOCK(stcb);
6298                                                 error = EINVAL;
6299                                                 break;
6300                                         }
6301                                 } else
6302 #endif
6303 #ifdef INET6
6304                                 if (addr->sa_family == AF_INET6) {
6305                                         struct sockaddr_in6 *sin6;
6306
6307                                         sin6 = (struct sockaddr_in6 *)addr;
6308                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6309                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6310                                                 SCTP_TCB_UNLOCK(stcb);
6311                                                 error = EINVAL;
6312                                                 break;
6313                                         }
6314                                 } else
6315 #endif
6316                                 {
6317                                         error = EAFNOSUPPORT;
6318                                         SCTP_TCB_UNLOCK(stcb);
6319                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6320                                         break;
6321                                 }
6322                         }
6323                         if (stcb != NULL) {
6324                                 if (net != NULL) {
6325                                         net->port = encaps->sue_port;
6326                                 } else {
6327                                         stcb->asoc.port = encaps->sue_port;
6328                                 }
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                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6334                                         SCTP_INP_WLOCK(inp);
6335                                         inp->sctp_ep.port = encaps->sue_port;
6336                                         SCTP_INP_WUNLOCK(inp);
6337                                 } else {
6338                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6339                                         error = EINVAL;
6340                                 }
6341                         }
6342                         break;
6343                 }
6344         case SCTP_ECN_SUPPORTED:
6345                 {
6346                         struct sctp_assoc_value *av;
6347
6348                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6349                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6350
6351                         if (stcb) {
6352                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6353                                 error = EINVAL;
6354                                 SCTP_TCB_UNLOCK(stcb);
6355                         } else {
6356                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6357                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6358                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6359                                         SCTP_INP_WLOCK(inp);
6360                                         if (av->assoc_value == 0) {
6361                                                 inp->ecn_supported = 0;
6362                                         } else {
6363                                                 inp->ecn_supported = 1;
6364                                         }
6365                                         SCTP_INP_WUNLOCK(inp);
6366                                 } else {
6367                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6368                                         error = EINVAL;
6369                                 }
6370                         }
6371                         break;
6372                 }
6373         case SCTP_PR_SUPPORTED:
6374                 {
6375                         struct sctp_assoc_value *av;
6376
6377                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6378                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6379
6380                         if (stcb) {
6381                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6382                                 error = EINVAL;
6383                                 SCTP_TCB_UNLOCK(stcb);
6384                         } else {
6385                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6386                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6387                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6388                                         SCTP_INP_WLOCK(inp);
6389                                         if (av->assoc_value == 0) {
6390                                                 inp->prsctp_supported = 0;
6391                                         } else {
6392                                                 inp->prsctp_supported = 1;
6393                                         }
6394                                         SCTP_INP_WUNLOCK(inp);
6395                                 } else {
6396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6397                                         error = EINVAL;
6398                                 }
6399                         }
6400                         break;
6401                 }
6402         case SCTP_AUTH_SUPPORTED:
6403                 {
6404                         struct sctp_assoc_value *av;
6405
6406                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6407                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6408
6409                         if (stcb) {
6410                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6411                                 error = EINVAL;
6412                                 SCTP_TCB_UNLOCK(stcb);
6413                         } else {
6414                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6415                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6416                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6417                                         if ((av->assoc_value == 0) &&
6418                                             (inp->asconf_supported == 1)) {
6419                                                 /*
6420                                                  * AUTH is required for
6421                                                  * ASCONF
6422                                                  */
6423                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6424                                                 error = EINVAL;
6425                                         } else {
6426                                                 SCTP_INP_WLOCK(inp);
6427                                                 if (av->assoc_value == 0) {
6428                                                         inp->auth_supported = 0;
6429                                                 } else {
6430                                                         inp->auth_supported = 1;
6431                                                 }
6432                                                 SCTP_INP_WUNLOCK(inp);
6433                                         }
6434                                 } else {
6435                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6436                                         error = EINVAL;
6437                                 }
6438                         }
6439                         break;
6440                 }
6441         case SCTP_ASCONF_SUPPORTED:
6442                 {
6443                         struct sctp_assoc_value *av;
6444
6445                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6446                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6447
6448                         if (stcb) {
6449                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6450                                 error = EINVAL;
6451                                 SCTP_TCB_UNLOCK(stcb);
6452                         } else {
6453                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6454                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6455                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6456                                         if ((av->assoc_value != 0) &&
6457                                             (inp->auth_supported == 0)) {
6458                                                 /*
6459                                                  * AUTH is required for
6460                                                  * ASCONF
6461                                                  */
6462                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6463                                                 error = EINVAL;
6464                                         } else {
6465                                                 SCTP_INP_WLOCK(inp);
6466                                                 if (av->assoc_value == 0) {
6467                                                         inp->asconf_supported = 0;
6468                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6469                                                             inp->sctp_ep.local_auth_chunks);
6470                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6471                                                             inp->sctp_ep.local_auth_chunks);
6472                                                 } else {
6473                                                         inp->asconf_supported = 1;
6474                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6475                                                             inp->sctp_ep.local_auth_chunks);
6476                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6477                                                             inp->sctp_ep.local_auth_chunks);
6478                                                 }
6479                                                 SCTP_INP_WUNLOCK(inp);
6480                                         }
6481                                 } else {
6482                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6483                                         error = EINVAL;
6484                                 }
6485                         }
6486                         break;
6487                 }
6488         case SCTP_RECONFIG_SUPPORTED:
6489                 {
6490                         struct sctp_assoc_value *av;
6491
6492                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6493                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6494
6495                         if (stcb) {
6496                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6497                                 error = EINVAL;
6498                                 SCTP_TCB_UNLOCK(stcb);
6499                         } else {
6500                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6501                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6502                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6503                                         SCTP_INP_WLOCK(inp);
6504                                         if (av->assoc_value == 0) {
6505                                                 inp->reconfig_supported = 0;
6506                                         } else {
6507                                                 inp->reconfig_supported = 1;
6508                                         }
6509                                         SCTP_INP_WUNLOCK(inp);
6510                                 } else {
6511                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6512                                         error = EINVAL;
6513                                 }
6514                         }
6515                         break;
6516                 }
6517         case SCTP_NRSACK_SUPPORTED:
6518                 {
6519                         struct sctp_assoc_value *av;
6520
6521                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6522                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6523
6524                         if (stcb) {
6525                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6526                                 error = EINVAL;
6527                                 SCTP_TCB_UNLOCK(stcb);
6528                         } else {
6529                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6530                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6531                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6532                                         SCTP_INP_WLOCK(inp);
6533                                         if (av->assoc_value == 0) {
6534                                                 inp->nrsack_supported = 0;
6535                                         } else {
6536                                                 inp->nrsack_supported = 1;
6537                                         }
6538                                         SCTP_INP_WUNLOCK(inp);
6539                                 } else {
6540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6541                                         error = EINVAL;
6542                                 }
6543                         }
6544                         break;
6545                 }
6546         case SCTP_PKTDROP_SUPPORTED:
6547                 {
6548                         struct sctp_assoc_value *av;
6549
6550                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6551                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6552
6553                         if (stcb) {
6554                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6555                                 error = EINVAL;
6556                                 SCTP_TCB_UNLOCK(stcb);
6557                         } else {
6558                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6559                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6560                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6561                                         SCTP_INP_WLOCK(inp);
6562                                         if (av->assoc_value == 0) {
6563                                                 inp->pktdrop_supported = 0;
6564                                         } else {
6565                                                 inp->pktdrop_supported = 1;
6566                                         }
6567                                         SCTP_INP_WUNLOCK(inp);
6568                                 } else {
6569                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6570                                         error = EINVAL;
6571                                 }
6572                         }
6573                         break;
6574                 }
6575         default:
6576                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6577                 error = ENOPROTOOPT;
6578                 break;
6579         }                       /* end switch (opt) */
6580         return (error);
6581 }
6582
6583 int
6584 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6585 {
6586         void *optval = NULL;
6587         size_t optsize = 0;
6588         void *p;
6589         int error = 0;
6590
6591         if (sopt->sopt_level != IPPROTO_SCTP) {
6592                 /* wrong proto level... send back up to IP */
6593 #ifdef INET6
6594                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6595                         error = ip6_ctloutput(so, sopt);
6596 #endif                          /* INET6 */
6597 #if defined(INET) && defined(INET6)
6598                 else
6599 #endif
6600 #ifdef INET
6601                         error = ip_ctloutput(so, sopt);
6602 #endif
6603                 return (error);
6604         }
6605         optsize = sopt->sopt_valsize;
6606         if (optsize) {
6607                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6608                 if (optval == NULL) {
6609                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6610                         return (ENOBUFS);
6611                 }
6612                 error = sooptcopyin(sopt, optval, optsize, optsize);
6613                 if (error) {
6614                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6615                         goto out;
6616                 }
6617         }
6618         p = (void *)sopt->sopt_td;
6619         if (sopt->sopt_dir == SOPT_SET) {
6620                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6621         } else if (sopt->sopt_dir == SOPT_GET) {
6622                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6623         } else {
6624                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6625                 error = EINVAL;
6626         }
6627         if ((error == 0) && (optval != NULL)) {
6628                 error = sooptcopyout(sopt, optval, optsize);
6629                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6630         } else if (optval != NULL) {
6631                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6632         }
6633 out:
6634         return (error);
6635 }
6636
6637 #ifdef INET
6638 static int
6639 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6640 {
6641         int error = 0;
6642         int create_lock_on = 0;
6643         uint32_t vrf_id;
6644         struct sctp_inpcb *inp;
6645         struct sctp_tcb *stcb = NULL;
6646
6647         inp = (struct sctp_inpcb *)so->so_pcb;
6648         if (inp == NULL) {
6649                 /* I made the same as TCP since we are not setup? */
6650                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6651                 return (ECONNRESET);
6652         }
6653         if (addr == NULL) {
6654                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6655                 return EINVAL;
6656         }
6657         switch (addr->sa_family) {
6658 #ifdef INET6
6659         case AF_INET6:
6660                 {
6661                         struct sockaddr_in6 *sin6p;
6662
6663                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6664                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6665                                 return (EINVAL);
6666                         }
6667                         sin6p = (struct sockaddr_in6 *)addr;
6668                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6669                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6670                                 return (error);
6671                         }
6672                         break;
6673                 }
6674 #endif
6675 #ifdef INET
6676         case AF_INET:
6677                 {
6678                         struct sockaddr_in *sinp;
6679
6680                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6681                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6682                                 return (EINVAL);
6683                         }
6684                         sinp = (struct sockaddr_in *)addr;
6685                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6686                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6687                                 return (error);
6688                         }
6689                         break;
6690                 }
6691 #endif
6692         default:
6693                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6694                 return (EAFNOSUPPORT);
6695         }
6696         SCTP_INP_INCR_REF(inp);
6697         SCTP_ASOC_CREATE_LOCK(inp);
6698         create_lock_on = 1;
6699
6700
6701         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6702             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6703                 /* Should I really unlock ? */
6704                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6705                 error = EFAULT;
6706                 goto out_now;
6707         }
6708 #ifdef INET6
6709         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6710             (addr->sa_family == AF_INET6)) {
6711                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6712                 error = EINVAL;
6713                 goto out_now;
6714         }
6715 #endif
6716         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6717             SCTP_PCB_FLAGS_UNBOUND) {
6718                 /* Bind a ephemeral port */
6719                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6720                 if (error) {
6721                         goto out_now;
6722                 }
6723         }
6724         /* Now do we connect? */
6725         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6726             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6727                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6728                 error = EINVAL;
6729                 goto out_now;
6730         }
6731         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6732             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6733                 /* We are already connected AND the TCP model */
6734                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6735                 error = EADDRINUSE;
6736                 goto out_now;
6737         }
6738         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6739                 SCTP_INP_RLOCK(inp);
6740                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6741                 SCTP_INP_RUNLOCK(inp);
6742         } else {
6743                 /*
6744                  * We increment here since sctp_findassociation_ep_addr()
6745                  * will do a decrement if it finds the stcb as long as the
6746                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6747                  */
6748                 SCTP_INP_INCR_REF(inp);
6749                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6750                 if (stcb == NULL) {
6751                         SCTP_INP_DECR_REF(inp);
6752                 } else {
6753                         SCTP_TCB_UNLOCK(stcb);
6754                 }
6755         }
6756         if (stcb != NULL) {
6757                 /* Already have or am bring up an association */
6758                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6759                 error = EALREADY;
6760                 goto out_now;
6761         }
6762         vrf_id = inp->def_vrf_id;
6763         /* We are GOOD to go */
6764         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6765         if (stcb == NULL) {
6766                 /* Gak! no memory */
6767                 goto out_now;
6768         }
6769         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6770                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6771                 /* Set the connected flag so we can queue data */
6772                 soisconnecting(so);
6773         }
6774         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6775         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6776
6777         /* initialize authentication parameters for the assoc */
6778         sctp_initialize_auth_params(inp, stcb);
6779
6780         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6781         SCTP_TCB_UNLOCK(stcb);
6782 out_now:
6783         if (create_lock_on) {
6784                 SCTP_ASOC_CREATE_UNLOCK(inp);
6785         }
6786         SCTP_INP_DECR_REF(inp);
6787         return (error);
6788 }
6789
6790 #endif
6791
6792 int
6793 sctp_listen(struct socket *so, int backlog, struct thread *p)
6794 {
6795         /*
6796          * Note this module depends on the protocol processing being called
6797          * AFTER any socket level flags and backlog are applied to the
6798          * socket. The traditional way that the socket flags are applied is
6799          * AFTER protocol processing. We have made a change to the
6800          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6801          * place if the socket API for SCTP is to work properly.
6802          */
6803
6804         int error = 0;
6805         struct sctp_inpcb *inp;
6806
6807         inp = (struct sctp_inpcb *)so->so_pcb;
6808         if (inp == NULL) {
6809                 /* I made the same as TCP since we are not setup? */
6810                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6811                 return (ECONNRESET);
6812         }
6813         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6814                 /* See if we have a listener */
6815                 struct sctp_inpcb *tinp;
6816                 union sctp_sockstore store;
6817
6818                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6819                         /* not bound all */
6820                         struct sctp_laddr *laddr;
6821
6822                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6823                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6824                                 switch (store.sa.sa_family) {
6825 #ifdef INET
6826                                 case AF_INET:
6827                                         store.sin.sin_port = inp->sctp_lport;
6828                                         break;
6829 #endif
6830 #ifdef INET6
6831                                 case AF_INET6:
6832                                         store.sin6.sin6_port = inp->sctp_lport;
6833                                         break;
6834 #endif
6835                                 default:
6836                                         break;
6837                                 }
6838                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6839                                 if (tinp && (tinp != inp) &&
6840                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6841                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6842                                     (tinp->sctp_socket->so_qlimit)) {
6843                                         /*
6844                                          * we have a listener already and
6845                                          * its not this inp.
6846                                          */
6847                                         SCTP_INP_DECR_REF(tinp);
6848                                         return (EADDRINUSE);
6849                                 } else if (tinp) {
6850                                         SCTP_INP_DECR_REF(tinp);
6851                                 }
6852                         }
6853                 } else {
6854                         /* Setup a local addr bound all */
6855                         memset(&store, 0, sizeof(store));
6856 #ifdef INET6
6857                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6858                                 store.sa.sa_family = AF_INET6;
6859                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6860                         }
6861 #endif
6862 #ifdef INET
6863                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6864                                 store.sa.sa_family = AF_INET;
6865                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6866                         }
6867 #endif
6868                         switch (store.sa.sa_family) {
6869 #ifdef INET
6870                         case AF_INET:
6871                                 store.sin.sin_port = inp->sctp_lport;
6872                                 break;
6873 #endif
6874 #ifdef INET6
6875                         case AF_INET6:
6876                                 store.sin6.sin6_port = inp->sctp_lport;
6877                                 break;
6878 #endif
6879                         default:
6880                                 break;
6881                         }
6882                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6883                         if (tinp && (tinp != inp) &&
6884                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6885                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6886                             (tinp->sctp_socket->so_qlimit)) {
6887                                 /*
6888                                  * we have a listener already and its not
6889                                  * this inp.
6890                                  */
6891                                 SCTP_INP_DECR_REF(tinp);
6892                                 return (EADDRINUSE);
6893                         } else if (tinp) {
6894                                 SCTP_INP_DECR_REF(inp);
6895                         }
6896                 }
6897         }
6898         SCTP_INP_RLOCK(inp);
6899 #ifdef SCTP_LOCK_LOGGING
6900         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6901                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6902         }
6903 #endif
6904         SOCK_LOCK(so);
6905         error = solisten_proto_check(so);
6906         if (error) {
6907                 SOCK_UNLOCK(so);
6908                 SCTP_INP_RUNLOCK(inp);
6909                 return (error);
6910         }
6911         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6912             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6913                 /*
6914                  * The unlucky case - We are in the tcp pool with this guy.
6915                  * - Someone else is in the main inp slot. - We must move
6916                  * this guy (the listener) to the main slot - We must then
6917                  * move the guy that was listener to the TCP Pool.
6918                  */
6919                 if (sctp_swap_inpcb_for_listen(inp)) {
6920                         goto in_use;
6921                 }
6922         }
6923         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6924             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6925                 /* We are already connected AND the TCP model */
6926 in_use:
6927                 SCTP_INP_RUNLOCK(inp);
6928                 SOCK_UNLOCK(so);
6929                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6930                 return (EADDRINUSE);
6931         }
6932         SCTP_INP_RUNLOCK(inp);
6933         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6934                 /* We must do a bind. */
6935                 SOCK_UNLOCK(so);
6936                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6937                         /* bind error, probably perm */
6938                         return (error);
6939                 }
6940                 SOCK_LOCK(so);
6941         }
6942         /* It appears for 7.0 and on, we must always call this. */
6943         solisten_proto(so, backlog);
6944         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6945                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6946                 so->so_options &= ~SO_ACCEPTCONN;
6947         }
6948         if (backlog == 0) {
6949                 /* turning off listen */
6950                 so->so_options &= ~SO_ACCEPTCONN;
6951         }
6952         SOCK_UNLOCK(so);
6953         return (error);
6954 }
6955
6956 static int sctp_defered_wakeup_cnt = 0;
6957
6958 int
6959 sctp_accept(struct socket *so, struct sockaddr **addr)
6960 {
6961         struct sctp_tcb *stcb;
6962         struct sctp_inpcb *inp;
6963         union sctp_sockstore store;
6964
6965 #ifdef INET6
6966         int error;
6967
6968 #endif
6969         inp = (struct sctp_inpcb *)so->so_pcb;
6970
6971         if (inp == NULL) {
6972                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6973                 return (ECONNRESET);
6974         }
6975         SCTP_INP_RLOCK(inp);
6976         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6977                 SCTP_INP_RUNLOCK(inp);
6978                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6979                 return (EOPNOTSUPP);
6980         }
6981         if (so->so_state & SS_ISDISCONNECTED) {
6982                 SCTP_INP_RUNLOCK(inp);
6983                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6984                 return (ECONNABORTED);
6985         }
6986         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6987         if (stcb == NULL) {
6988                 SCTP_INP_RUNLOCK(inp);
6989                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6990                 return (ECONNRESET);
6991         }
6992         SCTP_TCB_LOCK(stcb);
6993         SCTP_INP_RUNLOCK(inp);
6994         store = stcb->asoc.primary_destination->ro._l_addr;
6995         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6996         SCTP_TCB_UNLOCK(stcb);
6997         switch (store.sa.sa_family) {
6998 #ifdef INET
6999         case AF_INET:
7000                 {
7001                         struct sockaddr_in *sin;
7002
7003                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7004                         if (sin == NULL)
7005                                 return (ENOMEM);
7006                         sin->sin_family = AF_INET;
7007                         sin->sin_len = sizeof(*sin);
7008                         sin->sin_port = store.sin.sin_port;
7009                         sin->sin_addr = store.sin.sin_addr;
7010                         *addr = (struct sockaddr *)sin;
7011                         break;
7012                 }
7013 #endif
7014 #ifdef INET6
7015         case AF_INET6:
7016                 {
7017                         struct sockaddr_in6 *sin6;
7018
7019                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7020                         if (sin6 == NULL)
7021                                 return (ENOMEM);
7022                         sin6->sin6_family = AF_INET6;
7023                         sin6->sin6_len = sizeof(*sin6);
7024                         sin6->sin6_port = store.sin6.sin6_port;
7025                         sin6->sin6_addr = store.sin6.sin6_addr;
7026                         if ((error = sa6_recoverscope(sin6)) != 0) {
7027                                 SCTP_FREE_SONAME(sin6);
7028                                 return (error);
7029                         }
7030                         *addr = (struct sockaddr *)sin6;
7031                         break;
7032                 }
7033 #endif
7034         default:
7035                 /* TSNH */
7036                 break;
7037         }
7038         /* Wake any delayed sleep action */
7039         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7040                 SCTP_INP_WLOCK(inp);
7041                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7042                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7043                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7044                         SCTP_INP_WUNLOCK(inp);
7045                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7046                         if (sowriteable(inp->sctp_socket)) {
7047                                 sowwakeup_locked(inp->sctp_socket);
7048                         } else {
7049                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7050                         }
7051                         SCTP_INP_WLOCK(inp);
7052                 }
7053                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7054                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7055                         SCTP_INP_WUNLOCK(inp);
7056                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7057                         if (soreadable(inp->sctp_socket)) {
7058                                 sctp_defered_wakeup_cnt++;
7059                                 sorwakeup_locked(inp->sctp_socket);
7060                         } else {
7061                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7062                         }
7063                         SCTP_INP_WLOCK(inp);
7064                 }
7065                 SCTP_INP_WUNLOCK(inp);
7066         }
7067         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7068                 SCTP_TCB_LOCK(stcb);
7069                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
7070         }
7071         return (0);
7072 }
7073
7074 #ifdef INET
7075 int
7076 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7077 {
7078         struct sockaddr_in *sin;
7079         uint32_t vrf_id;
7080         struct sctp_inpcb *inp;
7081         struct sctp_ifa *sctp_ifa;
7082
7083         /*
7084          * Do the malloc first in case it blocks.
7085          */
7086         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7087         if (sin == NULL)
7088                 return (ENOMEM);
7089         sin->sin_family = AF_INET;
7090         sin->sin_len = sizeof(*sin);
7091         inp = (struct sctp_inpcb *)so->so_pcb;
7092         if (!inp) {
7093                 SCTP_FREE_SONAME(sin);
7094                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7095                 return (ECONNRESET);
7096         }
7097         SCTP_INP_RLOCK(inp);
7098         sin->sin_port = inp->sctp_lport;
7099         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7100                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7101                         struct sctp_tcb *stcb;
7102                         struct sockaddr_in *sin_a;
7103                         struct sctp_nets *net;
7104                         int fnd;
7105
7106                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7107                         if (stcb == NULL) {
7108                                 goto notConn;
7109                         }
7110                         fnd = 0;
7111                         sin_a = NULL;
7112                         SCTP_TCB_LOCK(stcb);
7113                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7114                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7115                                 if (sin_a == NULL)
7116                                         /* this will make coverity happy */
7117                                         continue;
7118
7119                                 if (sin_a->sin_family == AF_INET) {
7120                                         fnd = 1;
7121                                         break;
7122                                 }
7123                         }
7124                         if ((!fnd) || (sin_a == NULL)) {
7125                                 /* punt */
7126                                 SCTP_TCB_UNLOCK(stcb);
7127                                 goto notConn;
7128                         }
7129                         vrf_id = inp->def_vrf_id;
7130                         sctp_ifa = sctp_source_address_selection(inp,
7131                             stcb,
7132                             (sctp_route_t *) & net->ro,
7133                             net, 0, vrf_id);
7134                         if (sctp_ifa) {
7135                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7136                                 sctp_free_ifa(sctp_ifa);
7137                         }
7138                         SCTP_TCB_UNLOCK(stcb);
7139                 } else {
7140                         /* For the bound all case you get back 0 */
7141         notConn:
7142                         sin->sin_addr.s_addr = 0;
7143                 }
7144
7145         } else {
7146                 /* Take the first IPv4 address in the list */
7147                 struct sctp_laddr *laddr;
7148                 int fnd = 0;
7149
7150                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7151                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7152                                 struct sockaddr_in *sin_a;
7153
7154                                 sin_a = &laddr->ifa->address.sin;
7155                                 sin->sin_addr = sin_a->sin_addr;
7156                                 fnd = 1;
7157                                 break;
7158                         }
7159                 }
7160                 if (!fnd) {
7161                         SCTP_FREE_SONAME(sin);
7162                         SCTP_INP_RUNLOCK(inp);
7163                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7164                         return (ENOENT);
7165                 }
7166         }
7167         SCTP_INP_RUNLOCK(inp);
7168         (*addr) = (struct sockaddr *)sin;
7169         return (0);
7170 }
7171
7172 int
7173 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7174 {
7175         struct sockaddr_in *sin;
7176         int fnd;
7177         struct sockaddr_in *sin_a;
7178         struct sctp_inpcb *inp;
7179         struct sctp_tcb *stcb;
7180         struct sctp_nets *net;
7181
7182         /* Do the malloc first in case it blocks. */
7183         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7184         if (sin == NULL)
7185                 return (ENOMEM);
7186         sin->sin_family = AF_INET;
7187         sin->sin_len = sizeof(*sin);
7188
7189         inp = (struct sctp_inpcb *)so->so_pcb;
7190         if ((inp == NULL) ||
7191             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7192                 /* UDP type and listeners will drop out here */
7193                 SCTP_FREE_SONAME(sin);
7194                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7195                 return (ENOTCONN);
7196         }
7197         SCTP_INP_RLOCK(inp);
7198         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7199         if (stcb) {
7200                 SCTP_TCB_LOCK(stcb);
7201         }
7202         SCTP_INP_RUNLOCK(inp);
7203         if (stcb == NULL) {
7204                 SCTP_FREE_SONAME(sin);
7205                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7206                 return (ECONNRESET);
7207         }
7208         fnd = 0;
7209         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7210                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7211                 if (sin_a->sin_family == AF_INET) {
7212                         fnd = 1;
7213                         sin->sin_port = stcb->rport;
7214                         sin->sin_addr = sin_a->sin_addr;
7215                         break;
7216                 }
7217         }
7218         SCTP_TCB_UNLOCK(stcb);
7219         if (!fnd) {
7220                 /* No IPv4 address */
7221                 SCTP_FREE_SONAME(sin);
7222                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7223                 return (ENOENT);
7224         }
7225         (*addr) = (struct sockaddr *)sin;
7226         return (0);
7227 }
7228
7229 struct pr_usrreqs sctp_usrreqs = {
7230         .pru_abort = sctp_abort,
7231         .pru_accept = sctp_accept,
7232         .pru_attach = sctp_attach,
7233         .pru_bind = sctp_bind,
7234         .pru_connect = sctp_connect,
7235         .pru_control = in_control,
7236         .pru_close = sctp_close,
7237         .pru_detach = sctp_close,
7238         .pru_sopoll = sopoll_generic,
7239         .pru_flush = sctp_flush,
7240         .pru_disconnect = sctp_disconnect,
7241         .pru_listen = sctp_listen,
7242         .pru_peeraddr = sctp_peeraddr,
7243         .pru_send = sctp_sendm,
7244         .pru_shutdown = sctp_shutdown,
7245         .pru_sockaddr = sctp_ingetaddr,
7246         .pru_sosend = sctp_sosend,
7247         .pru_soreceive = sctp_soreceive
7248 };
7249
7250 #endif