sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2011, 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 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37 #include <netinet/sctp_os.h>
  38 #include <sys/proc.h>
  39 #include <netinet/sctp_pcb.h>
  40 #include <netinet/sctp_header.h>
  41 #include <netinet/sctp_var.h>
  42 #if defined(INET6)
  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 = 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 #endif
 219
 220 void
 221 sctp_notify(struct sctp_inpcb *inp,
 222     struct ip *ip,
 223     struct sctphdr *sh,
 224     struct sockaddr *to,
 225     struct sctp_tcb *stcb,
 226     struct sctp_nets *net)
 227 {
 228 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 229         struct socket *so;
 230
 231 #endif
 232         /* protection */
 233         int reason;
 234         struct icmp *icmph;
 235
 236
 237         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 238             (sh == NULL) || (to == NULL)) {
 239                 if (stcb)
 240                         SCTP_TCB_UNLOCK(stcb);
 241                 return;
 242         }
 243         /* First job is to verify the vtag matches what I would send */
 244         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 245                 SCTP_TCB_UNLOCK(stcb);
 246                 return;
 247         }
 248         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 249             sizeof(struct ip)));
 250         if (icmph->icmp_type != ICMP_UNREACH) {
 251                 /* We only care about unreachable */
 252                 SCTP_TCB_UNLOCK(stcb);
 253                 return;
 254         }
 255         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 256             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 257             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 258             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 259             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 260             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 261             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 262             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 263
 264                 /*
 265                  * Hmm reachablity problems we must examine closely. If its
 266                  * not reachable, we may have lost a network. Or if there is
 267                  * NO protocol at the other end named SCTP. well we consider
 268                  * it a OOTB abort.
 269                  */
 270                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 271                         /* Ok that destination is NOT reachable */
 272                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 273                         net->dest_state &= ~SCTP_ADDR_PF;
 274                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 275                             stcb, SCTP_FAILED_THRESHOLD,
 276                             (void *)net, SCTP_SO_NOT_LOCKED);
 277                 }
 278                 SCTP_TCB_UNLOCK(stcb);
 279         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 280             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 281                 /*
 282                  * Here the peer is either playing tricks on us, including
 283                  * an address that belongs to someone who does not support
 284                  * SCTP OR was a userland implementation that shutdown and
 285                  * now is dead. In either case treat it like a OOTB abort
 286                  * with no TCB
 287                  */
 288                 reason = SCTP_PEER_FAULTY;
 289                 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
 290 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 291                 so = SCTP_INP_SO(inp);
 292                 atomic_add_int(&stcb->asoc.refcnt, 1);
 293                 SCTP_TCB_UNLOCK(stcb);
 294                 SCTP_SOCKET_LOCK(so, 1);
 295                 SCTP_TCB_LOCK(stcb);
 296                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 297 #endif
 298                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 299 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 300                 SCTP_SOCKET_UNLOCK(so, 1);
 301                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 302 #endif
 303                 /* no need to unlock here, since the TCB is gone */
 304         } else {
 305                 SCTP_TCB_UNLOCK(stcb);
 306         }
 307 }
 308
 309 #ifdef INET
 310 void
 311 sctp_ctlinput(cmd, sa, vip)
 312         int cmd;
 313         struct sockaddr *sa;
 314         void *vip;
 315 {
 316         struct ip *ip = vip;
 317         struct sctphdr *sh;
 318         uint32_t vrf_id;
 319
 320         /* FIX, for non-bsd is this right? */
 321         vrf_id = SCTP_DEFAULT_VRFID;
 322         if (sa->sa_family != AF_INET ||
 323             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 324                 return;
 325         }
 326         if (PRC_IS_REDIRECT(cmd)) {
 327                 ip = 0;
 328         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 329                 return;
 330         }
 331         if (ip) {
 332                 struct sctp_inpcb *inp = NULL;
 333                 struct sctp_tcb *stcb = NULL;
 334                 struct sctp_nets *net = NULL;
 335                 struct sockaddr_in to, from;
 336
 337                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 338                 bzero(&to, sizeof(to));
 339                 bzero(&from, sizeof(from));
 340                 from.sin_family = to.sin_family = AF_INET;
 341                 from.sin_len = to.sin_len = sizeof(to);
 342                 from.sin_port = sh->src_port;
 343                 from.sin_addr = ip->ip_src;
 344                 to.sin_port = sh->dest_port;
 345                 to.sin_addr = ip->ip_dst;
 346
 347                 /*
 348                  * 'to' holds the dest of the packet that failed to be sent.
 349                  * 'from' holds our local endpoint address. Thus we reverse
 350                  * the to and the from in the lookup.
 351                  */
 352                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
 353                     (struct sockaddr *)&to,
 354                     &inp, &net, 1, vrf_id);
 355                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 356                         if (cmd != PRC_MSGSIZE) {
 357                                 sctp_notify(inp, ip, sh,
 358                                     (struct sockaddr *)&to, stcb,
 359                                     net);
 360                         } else {
 361                                 /* handle possible ICMP size messages */
 362                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 363                         }
 364                 } else {
 365                         if ((stcb == NULL) && (inp != NULL)) {
 366                                 /* reduce ref-count */
 367                                 SCTP_INP_WLOCK(inp);
 368                                 SCTP_INP_DECR_REF(inp);
 369                                 SCTP_INP_WUNLOCK(inp);
 370                         }
 371                         if (stcb) {
 372                                 SCTP_TCB_UNLOCK(stcb);
 373                         }
 374                 }
 375         }
 376         return;
 377 }
 378
 379 #endif
 380
 381 static int
 382 sctp_getcred(SYSCTL_HANDLER_ARGS)
 383 {
 384         struct xucred xuc;
 385         struct sockaddr_in addrs[2];
 386         struct sctp_inpcb *inp;
 387         struct sctp_nets *net;
 388         struct sctp_tcb *stcb;
 389         int error;
 390         uint32_t vrf_id;
 391
 392         /* FIX, for non-bsd is this right? */
 393         vrf_id = SCTP_DEFAULT_VRFID;
 394
 395         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 396
 397         if (error)
 398                 return (error);
 399
 400         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 401         if (error)
 402                 return (error);
 403
 404         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
 405             sintosa(&addrs[1]),
 406             &inp, &net, 1, vrf_id);
 407         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 408                 if ((inp != NULL) && (stcb == NULL)) {
 409                         /* reduce ref-count */
 410                         SCTP_INP_WLOCK(inp);
 411                         SCTP_INP_DECR_REF(inp);
 412                         goto cred_can_cont;
 413                 }
 414                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 415                 error = ENOENT;
 416                 goto out;
 417         }
 418         SCTP_TCB_UNLOCK(stcb);
 419         /*
 420          * We use the write lock here, only since in the error leg we need
 421          * it. If we used RLOCK, then we would have to
 422          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 423          * Better to use higher wlock.
 424          */
 425         SCTP_INP_WLOCK(inp);
 426 cred_can_cont:
 427         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 428         if (error) {
 429                 SCTP_INP_WUNLOCK(inp);
 430                 goto out;
 431         }
 432         cru2x(inp->sctp_socket->so_cred, &xuc);
 433         SCTP_INP_WUNLOCK(inp);
 434         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 435 out:
 436         return (error);
 437 }
 438
 439 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 440     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 441
 442
 443 #ifdef INET
 444 static void
 445 sctp_abort(struct socket *so)
 446 {
 447         struct sctp_inpcb *inp;
 448         uint32_t flags;
 449
 450         inp = (struct sctp_inpcb *)so->so_pcb;
 451         if (inp == NULL) {
 452                 return;
 453         }
 454 sctp_must_try_again:
 455         flags = inp->sctp_flags;
 456 #ifdef SCTP_LOG_CLOSING
 457         sctp_log_closing(inp, NULL, 17);
 458 #endif
 459         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 460             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 461 #ifdef SCTP_LOG_CLOSING
 462                 sctp_log_closing(inp, NULL, 16);
 463 #endif
 464                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 465                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 466                 SOCK_LOCK(so);
 467                 SCTP_SB_CLEAR(so->so_snd);
 468                 /*
 469                  * same for the rcv ones, they are only here for the
 470                  * accounting/select.
 471                  */
 472                 SCTP_SB_CLEAR(so->so_rcv);
 473
 474                 /* Now null out the reference, we are completely detached. */
 475                 so->so_pcb = NULL;
 476                 SOCK_UNLOCK(so);
 477         } else {
 478                 flags = inp->sctp_flags;
 479                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 480                         goto sctp_must_try_again;
 481                 }
 482         }
 483         return;
 484 }
 485
 486 static int
 487 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 488 {
 489         struct sctp_inpcb *inp;
 490         struct inpcb *ip_inp;
 491         int error;
 492         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 493
 494 #ifdef IPSEC
 495         uint32_t flags;
 496
 497 #endif
 498
 499         inp = (struct sctp_inpcb *)so->so_pcb;
 500         if (inp != 0) {
 501                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 502                 return (EINVAL);
 503         }
 504         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 505                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 506                 if (error) {
 507                         return (error);
 508                 }
 509         }
 510         error = sctp_inpcb_alloc(so, vrf_id);
 511         if (error) {
 512                 return (error);
 513         }
 514         inp = (struct sctp_inpcb *)so->so_pcb;
 515         SCTP_INP_WLOCK(inp);
 516         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 517         ip_inp = &inp->ip_inp.inp;
 518         ip_inp->inp_vflag |= INP_IPV4;
 519         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 520 #ifdef IPSEC
 521         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 522 #ifdef SCTP_LOG_CLOSING
 523         sctp_log_closing(inp, NULL, 17);
 524 #endif
 525         if (error != 0) {
 526 try_again:
 527                 flags = inp->sctp_flags;
 528                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 529                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 530 #ifdef SCTP_LOG_CLOSING
 531                         sctp_log_closing(inp, NULL, 15);
 532 #endif
 533                         SCTP_INP_WUNLOCK(inp);
 534                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 535                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 536                 } else {
 537                         flags = inp->sctp_flags;
 538                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 539                                 goto try_again;
 540                         } else {
 541                                 SCTP_INP_WUNLOCK(inp);
 542                         }
 543                 }
 544                 return (error);
 545         }
 546 #endif                          /* IPSEC */
 547         SCTP_INP_WUNLOCK(inp);
 548         return (0);
 549 }
 550
 551 static int
 552 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 553 {
 554         struct sctp_inpcb *inp = NULL;
 555         int error;
 556
 557 #ifdef INET
 558         if (addr && addr->sa_family != AF_INET) {
 559                 /* must be a v4 address! */
 560                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 561                 return (EINVAL);
 562         }
 563 #endif                          /* INET6 */
 564         if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
 565                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 566                 return (EINVAL);
 567         }
 568         inp = (struct sctp_inpcb *)so->so_pcb;
 569         if (inp == NULL) {
 570                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 571                 return (EINVAL);
 572         }
 573         error = sctp_inpcb_bind(so, addr, NULL, p);
 574         return (error);
 575 }
 576
 577 #endif
 578 void
 579 sctp_close(struct socket *so)
 580 {
 581         struct sctp_inpcb *inp;
 582         uint32_t flags;
 583
 584         inp = (struct sctp_inpcb *)so->so_pcb;
 585         if (inp == NULL)
 586                 return;
 587
 588         /*
 589          * Inform all the lower layer assoc that we are done.
 590          */
 591 sctp_must_try_again:
 592         flags = inp->sctp_flags;
 593 #ifdef SCTP_LOG_CLOSING
 594         sctp_log_closing(inp, NULL, 17);
 595 #endif
 596         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 597             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 598                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 599                     (so->so_rcv.sb_cc > 0)) {
 600 #ifdef SCTP_LOG_CLOSING
 601                         sctp_log_closing(inp, NULL, 13);
 602 #endif
 603                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 604                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 605                 } else {
 606 #ifdef SCTP_LOG_CLOSING
 607                         sctp_log_closing(inp, NULL, 14);
 608 #endif
 609                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 610                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 611                 }
 612                 /*
 613                  * The socket is now detached, no matter what the state of
 614                  * the SCTP association.
 615                  */
 616                 SOCK_LOCK(so);
 617                 SCTP_SB_CLEAR(so->so_snd);
 618                 /*
 619                  * same for the rcv ones, they are only here for the
 620                  * accounting/select.
 621                  */
 622                 SCTP_SB_CLEAR(so->so_rcv);
 623
 624                 /* Now null out the reference, we are completely detached. */
 625                 so->so_pcb = NULL;
 626                 SOCK_UNLOCK(so);
 627         } else {
 628                 flags = inp->sctp_flags;
 629                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 630                         goto sctp_must_try_again;
 631                 }
 632         }
 633         return;
 634 }
 635
 636
 637 int
 638 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 639     struct mbuf *control, struct thread *p);
 640
 641
 642 int
 643 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 644     struct mbuf *control, struct thread *p)
 645 {
 646         struct sctp_inpcb *inp;
 647         int error;
 648
 649         inp = (struct sctp_inpcb *)so->so_pcb;
 650         if (inp == NULL) {
 651                 if (control) {
 652                         sctp_m_freem(control);
 653                         control = NULL;
 654                 }
 655                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 656                 sctp_m_freem(m);
 657                 return (EINVAL);
 658         }
 659         /* Got to have an to address if we are NOT a connected socket */
 660         if ((addr == NULL) &&
 661             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 662             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 663                 goto connected_type;
 664         } else if (addr == NULL) {
 665                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 666                 error = EDESTADDRREQ;
 667                 sctp_m_freem(m);
 668                 if (control) {
 669                         sctp_m_freem(control);
 670                         control = NULL;
 671                 }
 672                 return (error);
 673         }
 674 #ifdef INET6
 675         if (addr->sa_family != AF_INET) {
 676                 /* must be a v4 address! */
 677                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 678                 sctp_m_freem(m);
 679                 if (control) {
 680                         sctp_m_freem(control);
 681                         control = NULL;
 682                 }
 683                 error = EDESTADDRREQ;
 684                 return (error);
 685         }
 686 #endif                          /* INET6 */
 687 connected_type:
 688         /* now what about control */
 689         if (control) {
 690                 if (inp->control) {
 691                         SCTP_PRINTF("huh? control set?\n");
 692                         sctp_m_freem(inp->control);
 693                         inp->control = NULL;
 694                 }
 695                 inp->control = control;
 696         }
 697         /* Place the data */
 698         if (inp->pkt) {
 699                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 700                 inp->pkt_last = m;
 701         } else {
 702                 inp->pkt_last = inp->pkt = m;
 703         }
 704         if (
 705         /* FreeBSD uses a flag passed */
 706             ((flags & PRUS_MORETOCOME) == 0)
 707             ) {
 708                 /*
 709                  * note with the current version this code will only be used
 710                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 711                  * re-defining sosend to use the sctp_sosend. One can
 712                  * optionally switch back to this code (by changing back the
 713                  * definitions) but this is not advisable. This code is used
 714                  * by FreeBSD when sending a file with sendfile() though.
 715                  */
 716                 int ret;
 717
 718                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 719                 inp->pkt = NULL;
 720                 inp->control = NULL;
 721                 return (ret);
 722         } else {
 723                 return (0);
 724         }
 725 }
 726
 727 int
 728 sctp_disconnect(struct socket *so)
 729 {
 730         struct sctp_inpcb *inp;
 731
 732         inp = (struct sctp_inpcb *)so->so_pcb;
 733         if (inp == NULL) {
 734                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 735                 return (ENOTCONN);
 736         }
 737         SCTP_INP_RLOCK(inp);
 738         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 739             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 740                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 741                         /* No connection */
 742                         SCTP_INP_RUNLOCK(inp);
 743                         return (0);
 744                 } else {
 745                         struct sctp_association *asoc;
 746                         struct sctp_tcb *stcb;
 747
 748                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 749                         if (stcb == NULL) {
 750                                 SCTP_INP_RUNLOCK(inp);
 751                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 752                                 return (EINVAL);
 753                         }
 754                         SCTP_TCB_LOCK(stcb);
 755                         asoc = &stcb->asoc;
 756                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 757                                 /* We are about to be freed, out of here */
 758                                 SCTP_TCB_UNLOCK(stcb);
 759                                 SCTP_INP_RUNLOCK(inp);
 760                                 return (0);
 761                         }
 762                         if (((so->so_options & SO_LINGER) &&
 763                             (so->so_linger == 0)) ||
 764                             (so->so_rcv.sb_cc > 0)) {
 765                                 if (SCTP_GET_STATE(asoc) !=
 766                                     SCTP_STATE_COOKIE_WAIT) {
 767                                         /* Left with Data unread */
 768                                         struct mbuf *err;
 769
 770                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
 771                                         if (err) {
 772                                                 /*
 773                                                  * Fill in the user
 774                                                  * initiated abort
 775                                                  */
 776                                                 struct sctp_paramhdr *ph;
 777
 778                                                 ph = mtod(err, struct sctp_paramhdr *);
 779                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 780                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 781                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 782                                         }
 783 #if defined(SCTP_PANIC_ON_ABORT)
 784                                         panic("disconnect does an abort");
 785 #endif
 786                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 787                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 788                                 }
 789                                 SCTP_INP_RUNLOCK(inp);
 790                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 791                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 792                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 793                                 }
 794                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 795                                 /* No unlock tcb assoc is gone */
 796                                 return (0);
 797                         }
 798                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 799                             TAILQ_EMPTY(&asoc->sent_queue) &&
 800                             (asoc->stream_queue_cnt == 0)) {
 801                                 /* there is nothing queued to send, so done */
 802                                 if (asoc->locked_on_sending) {
 803                                         goto abort_anyway;
 804                                 }
 805                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 806                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 807                                         /* only send SHUTDOWN 1st time thru */
 808                                         struct sctp_nets *netp;
 809
 810                                         if (stcb->asoc.alternate) {
 811                                                 netp = stcb->asoc.alternate;
 812                                         } else {
 813                                                 netp = stcb->asoc.primary_destination;
 814                                         }
 815                                         sctp_stop_timers_for_shutdown(stcb);
 816                                         sctp_send_shutdown(stcb, netp);
 817                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 818                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 819                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 820                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 821                                         }
 822                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 823                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 824                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 825                                             stcb->sctp_ep, stcb, netp);
 826                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 827                                             stcb->sctp_ep, stcb, netp);
 828
 829                                 }
 830                         } else {
 831                                 /*
 832                                  * we still got (or just got) data to send,
 833                                  * so set SHUTDOWN_PENDING
 834                                  */
 835                                 /*
 836                                  * XXX sockets draft says that SCTP_EOF
 837                                  * should be sent with no data. currently,
 838                                  * we will allow user data to be sent first
 839                                  * and move to SHUTDOWN-PENDING
 840                                  */
 841                                 struct sctp_nets *netp;
 842
 843                                 if (stcb->asoc.alternate) {
 844                                         netp = stcb->asoc.alternate;
 845                                 } else {
 846                                         netp = stcb->asoc.primary_destination;
 847                                 }
 848
 849                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 850                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 851                                     netp);
 852                                 if (asoc->locked_on_sending) {
 853                                         /* Locked to send out the data */
 854                                         struct sctp_stream_queue_pending *sp;
 855
 856                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 857                                         if (sp == NULL) {
 858                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 859                                                     asoc->locked_on_sending->stream_no);
 860                                         } else {
 861                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 862                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 863                                         }
 864                                 }
 865                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 866                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 867                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 868                                         struct mbuf *op_err;
 869
 870                         abort_anyway:
 871                                         op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
 872                                             0, M_DONTWAIT, 1, MT_DATA);
 873                                         if (op_err) {
 874                                                 /*
 875                                                  * Fill in the user
 876                                                  * initiated abort
 877                                                  */
 878                                                 struct sctp_paramhdr *ph;
 879                                                 uint32_t *ippp;
 880
 881                                                 SCTP_BUF_LEN(op_err) =
 882                                                     (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
 883                                                 ph = mtod(op_err,
 884                                                     struct sctp_paramhdr *);
 885                                                 ph->param_type = htons(
 886                                                     SCTP_CAUSE_USER_INITIATED_ABT);
 887                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
 888                                                 ippp = (uint32_t *) (ph + 1);
 889                                                 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
 890                                         }
 891 #if defined(SCTP_PANIC_ON_ABORT)
 892                                         panic("disconnect does an abort");
 893 #endif
 894
 895                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 896                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 897                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 898                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 899                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 900                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 901                                         }
 902                                         SCTP_INP_RUNLOCK(inp);
 903                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 904                                         return (0);
 905                                 } else {
 906                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 907                                 }
 908                         }
 909                         soisdisconnecting(so);
 910                         SCTP_TCB_UNLOCK(stcb);
 911                         SCTP_INP_RUNLOCK(inp);
 912                         return (0);
 913                 }
 914                 /* not reached */
 915         } else {
 916                 /* UDP model does not support this */
 917                 SCTP_INP_RUNLOCK(inp);
 918                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 919                 return (EOPNOTSUPP);
 920         }
 921 }
 922
 923 int
 924 sctp_flush(struct socket *so, int how)
 925 {
 926         /*
 927          * We will just clear out the values and let subsequent close clear
 928          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 929          * they will not be able to read the data, the socket will block
 930          * that from happening.
 931          */
 932         struct sctp_inpcb *inp;
 933
 934         inp = (struct sctp_inpcb *)so->so_pcb;
 935         if (inp == NULL) {
 936                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 937                 return (EINVAL);
 938         }
 939         SCTP_INP_RLOCK(inp);
 940         /* For the 1 to many model this does nothing */
 941         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 942                 SCTP_INP_RUNLOCK(inp);
 943                 return (0);
 944         }
 945         SCTP_INP_RUNLOCK(inp);
 946         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 947                 /*
 948                  * First make sure the sb will be happy, we don't use these
 949                  * except maybe the count
 950                  */
 951                 SCTP_INP_WLOCK(inp);
 952                 SCTP_INP_READ_LOCK(inp);
 953                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 954                 SCTP_INP_READ_UNLOCK(inp);
 955                 SCTP_INP_WUNLOCK(inp);
 956                 so->so_rcv.sb_cc = 0;
 957                 so->so_rcv.sb_mbcnt = 0;
 958                 so->so_rcv.sb_mb = NULL;
 959         }
 960         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 961                 /*
 962                  * First make sure the sb will be happy, we don't use these
 963                  * except maybe the count
 964                  */
 965                 so->so_snd.sb_cc = 0;
 966                 so->so_snd.sb_mbcnt = 0;
 967                 so->so_snd.sb_mb = NULL;
 968
 969         }
 970         return (0);
 971 }
 972
 973 int
 974 sctp_shutdown(struct socket *so)
 975 {
 976         struct sctp_inpcb *inp;
 977
 978         inp = (struct sctp_inpcb *)so->so_pcb;
 979         if (inp == NULL) {
 980                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 981                 return (EINVAL);
 982         }
 983         SCTP_INP_RLOCK(inp);
 984         /* For UDP model this is a invalid call */
 985         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 986                 /* Restore the flags that the soshutdown took away. */
 987                 SOCKBUF_LOCK(&so->so_rcv);
 988                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 989                 SOCKBUF_UNLOCK(&so->so_rcv);
 990                 /* This proc will wakeup for read and do nothing (I hope) */
 991                 SCTP_INP_RUNLOCK(inp);
 992                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 993                 return (EOPNOTSUPP);
 994         }
 995         /*
 996          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 997          * or SHUT_RDWR. This means we put the shutdown flag against it.
 998          */
 999         {
1000                 struct sctp_tcb *stcb;
1001                 struct sctp_association *asoc;
1002
1003                 if ((so->so_state &
1004                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
1005                         SCTP_INP_RUNLOCK(inp);
1006                         return (ENOTCONN);
1007                 }
1008                 socantsendmore(so);
1009
1010                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1011                 if (stcb == NULL) {
1012                         /*
1013                          * Ok we hit the case that the shutdown call was
1014                          * made after an abort or something. Nothing to do
1015                          * now.
1016                          */
1017                         SCTP_INP_RUNLOCK(inp);
1018                         return (0);
1019                 }
1020                 SCTP_TCB_LOCK(stcb);
1021                 asoc = &stcb->asoc;
1022                 if (TAILQ_EMPTY(&asoc->send_queue) &&
1023                     TAILQ_EMPTY(&asoc->sent_queue) &&
1024                     (asoc->stream_queue_cnt == 0)) {
1025                         if (asoc->locked_on_sending) {
1026                                 goto abort_anyway;
1027                         }
1028                         /* there is nothing queued to send, so I'm done... */
1029                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1030                                 /* only send SHUTDOWN the first time through */
1031                                 struct sctp_nets *netp;
1032
1033                                 if (stcb->asoc.alternate) {
1034                                         netp = stcb->asoc.alternate;
1035                                 } else {
1036                                         netp = stcb->asoc.primary_destination;
1037                                 }
1038                                 sctp_stop_timers_for_shutdown(stcb);
1039                                 sctp_send_shutdown(stcb, netp);
1040                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1041                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1042                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1043                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1044                                 }
1045                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1046                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1047                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1048                                     stcb->sctp_ep, stcb, netp);
1049                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1050                                     stcb->sctp_ep, stcb, netp);
1051                         }
1052                 } else {
1053                         /*
1054                          * we still got (or just got) data to send, so set
1055                          * SHUTDOWN_PENDING
1056                          */
1057                         struct sctp_nets *netp;
1058
1059                         if (stcb->asoc.alternate) {
1060                                 netp = stcb->asoc.alternate;
1061                         } else {
1062                                 netp = stcb->asoc.primary_destination;
1063                         }
1064
1065                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1066                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1067                             netp);
1068
1069                         if (asoc->locked_on_sending) {
1070                                 /* Locked to send out the data */
1071                                 struct sctp_stream_queue_pending *sp;
1072
1073                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1074                                 if (sp == NULL) {
1075                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1076                                             asoc->locked_on_sending->stream_no);
1077                                 } else {
1078                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1079                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1080                                         }
1081                                 }
1082                         }
1083                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1084                             TAILQ_EMPTY(&asoc->sent_queue) &&
1085                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1086                                 struct mbuf *op_err;
1087
1088                 abort_anyway:
1089                                 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1090                                     0, M_DONTWAIT, 1, MT_DATA);
1091                                 if (op_err) {
1092                                         /* Fill in the user initiated abort */
1093                                         struct sctp_paramhdr *ph;
1094                                         uint32_t *ippp;
1095
1096                                         SCTP_BUF_LEN(op_err) =
1097                                             sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1098                                         ph = mtod(op_err,
1099                                             struct sctp_paramhdr *);
1100                                         ph->param_type = htons(
1101                                             SCTP_CAUSE_USER_INITIATED_ABT);
1102                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
1103                                         ippp = (uint32_t *) (ph + 1);
1104                                         *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1105                                 }
1106 #if defined(SCTP_PANIC_ON_ABORT)
1107                                 panic("shutdown does an abort");
1108 #endif
1109                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1110                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1111                                     SCTP_RESPONSE_TO_USER_REQ,
1112                                     op_err, SCTP_SO_LOCKED);
1113                                 goto skip_unlock;
1114                         } else {
1115                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1116                         }
1117                 }
1118                 SCTP_TCB_UNLOCK(stcb);
1119         }
1120 skip_unlock:
1121         SCTP_INP_RUNLOCK(inp);
1122         return (0);
1123 }
1124
1125 /*
1126  * copies a "user" presentable address and removes embedded scope, etc.
1127  * returns 0 on success, 1 on error
1128  */
1129 static uint32_t
1130 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1131 {
1132 #ifdef INET6
1133         struct sockaddr_in6 lsa6;
1134
1135         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1136             &lsa6);
1137 #endif
1138         memcpy(ss, sa, sa->sa_len);
1139         return (0);
1140 }
1141
1142
1143
1144 /*
1145  * NOTE: assumes addr lock is held
1146  */
1147 static size_t
1148 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1149     struct sctp_tcb *stcb,
1150     size_t limit,
1151     struct sockaddr_storage *sas,
1152     uint32_t vrf_id)
1153 {
1154         struct sctp_ifn *sctp_ifn;
1155         struct sctp_ifa *sctp_ifa;
1156         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1157         size_t actual;
1158         int ipv4_addr_legal, ipv6_addr_legal;
1159         struct sctp_vrf *vrf;
1160
1161         actual = 0;
1162         if (limit <= 0)
1163                 return (actual);
1164
1165         if (stcb) {
1166                 /* Turn on all the appropriate scope */
1167                 loopback_scope = stcb->asoc.loopback_scope;
1168                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1169                 local_scope = stcb->asoc.local_scope;
1170                 site_scope = stcb->asoc.site_scope;
1171         } else {
1172                 /* Turn on ALL scope, since we look at the EP */
1173                 loopback_scope = ipv4_local_scope = local_scope =
1174                     site_scope = 1;
1175         }
1176         ipv4_addr_legal = ipv6_addr_legal = 0;
1177         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1178                 ipv6_addr_legal = 1;
1179                 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1180                         ipv4_addr_legal = 1;
1181                 }
1182         } else {
1183                 ipv4_addr_legal = 1;
1184         }
1185         vrf = sctp_find_vrf(vrf_id);
1186         if (vrf == NULL) {
1187                 return (0);
1188         }
1189         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1190                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1191                         if ((loopback_scope == 0) &&
1192                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1193                                 /* Skip loopback if loopback_scope not set */
1194                                 continue;
1195                         }
1196                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1197                                 if (stcb) {
1198                                         /*
1199                                          * For the BOUND-ALL case, the list
1200                                          * associated with a TCB is Always
1201                                          * considered a reverse list.. i.e.
1202                                          * it lists addresses that are NOT
1203                                          * part of the association. If this
1204                                          * is one of those we must skip it.
1205                                          */
1206                                         if (sctp_is_addr_restricted(stcb,
1207                                             sctp_ifa)) {
1208                                                 continue;
1209                                         }
1210                                 }
1211                                 switch (sctp_ifa->address.sa.sa_family) {
1212 #ifdef INET
1213                                 case AF_INET:
1214                                         if (ipv4_addr_legal) {
1215                                                 struct sockaddr_in *sin;
1216
1217                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1218                                                 if (sin->sin_addr.s_addr == 0) {
1219                                                         /*
1220                                                          * we skip
1221                                                          * unspecifed
1222                                                          * addresses
1223                                                          */
1224                                                         continue;
1225                                                 }
1226                                                 if ((ipv4_local_scope == 0) &&
1227                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1228                                                         continue;
1229                                                 }
1230 #ifdef INET6
1231                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1232                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1233                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1234                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1235                                                         actual += sizeof(struct sockaddr_in6);
1236                                                 } else {
1237 #endif
1238                                                         memcpy(sas, sin, sizeof(*sin));
1239                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1240                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1241                                                         actual += sizeof(*sin);
1242 #ifdef INET6
1243                                                 }
1244 #endif
1245                                                 if (actual >= limit) {
1246                                                         return (actual);
1247                                                 }
1248                                         } else {
1249                                                 continue;
1250                                         }
1251                                         break;
1252 #endif
1253 #ifdef INET6
1254                                 case AF_INET6:
1255                                         if (ipv6_addr_legal) {
1256                                                 struct sockaddr_in6 *sin6;
1257
1258                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1259                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1260                                                         /*
1261                                                          * we skip
1262                                                          * unspecifed
1263                                                          * addresses
1264                                                          */
1265                                                         continue;
1266                                                 }
1267                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1268                                                         if (local_scope == 0)
1269                                                                 continue;
1270                                                         if (sin6->sin6_scope_id == 0) {
1271                                                                 if (sa6_recoverscope(sin6) != 0)
1272                                                                         /*
1273                                                                          *
1274                                                                          * bad
1275                                                                          *
1276                                                                          * li
1277                                                                          * nk
1278                                                                          *
1279                                                                          * loc
1280                                                                          * al
1281                                                                          *
1282                                                                          * add
1283                                                                          * re
1284                                                                          * ss
1285                                                                          * */
1286                                                                         continue;
1287                                                         }
1288                                                 }
1289                                                 if ((site_scope == 0) &&
1290                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1291                                                         continue;
1292                                                 }
1293                                                 memcpy(sas, sin6, sizeof(*sin6));
1294                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1295                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1296                                                 actual += sizeof(*sin6);
1297                                                 if (actual >= limit) {
1298                                                         return (actual);
1299                                                 }
1300                                         } else {
1301                                                 continue;
1302                                         }
1303                                         break;
1304 #endif
1305                                 default:
1306                                         /* TSNH */
1307                                         break;
1308                                 }
1309                         }
1310                 }
1311         } else {
1312                 struct sctp_laddr *laddr;
1313
1314                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1315                         if (stcb) {
1316                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1317                                         continue;
1318                                 }
1319                         }
1320                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1321                                 continue;
1322
1323                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1324                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1325                             laddr->ifa->address.sa.sa_len);
1326                         actual += laddr->ifa->address.sa.sa_len;
1327                         if (actual >= limit) {
1328                                 return (actual);
1329                         }
1330                 }
1331         }
1332         return (actual);
1333 }
1334
1335 static size_t
1336 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1337     struct sctp_tcb *stcb,
1338     size_t limit,
1339     struct sockaddr_storage *sas)
1340 {
1341         size_t size = 0;
1342
1343         SCTP_IPI_ADDR_RLOCK();
1344         /* fill up addresses for the endpoint's default vrf */
1345         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1346             inp->def_vrf_id);
1347         SCTP_IPI_ADDR_RUNLOCK();
1348         return (size);
1349 }
1350
1351 /*
1352  * NOTE: assumes addr lock is held
1353  */
1354 static int
1355 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1356 {
1357         int cnt = 0;
1358         struct sctp_vrf *vrf = NULL;
1359
1360         /*
1361          * In both sub-set bound an bound_all cases we return the MAXIMUM
1362          * number of addresses that you COULD get. In reality the sub-set
1363          * bound may have an exclusion list for a given TCB OR in the
1364          * bound-all case a TCB may NOT include the loopback or other
1365          * addresses as well.
1366          */
1367         vrf = sctp_find_vrf(vrf_id);
1368         if (vrf == NULL) {
1369                 return (0);
1370         }
1371         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1372                 struct sctp_ifn *sctp_ifn;
1373                 struct sctp_ifa *sctp_ifa;
1374
1375                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1376                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1377                                 /* Count them if they are the right type */
1378                                 switch (sctp_ifa->address.sa.sa_family) {
1379 #ifdef INET
1380                                 case AF_INET:
1381                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1382                                                 cnt += sizeof(struct sockaddr_in6);
1383                                         else
1384                                                 cnt += sizeof(struct sockaddr_in);
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                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1405                                         cnt += sizeof(struct sockaddr_in6);
1406                                 else
1407                                         cnt += sizeof(struct sockaddr_in);
1408                                 break;
1409 #endif
1410 #ifdef INET6
1411                         case AF_INET6:
1412                                 cnt += sizeof(struct sockaddr_in6);
1413                                 break;
1414 #endif
1415                         default:
1416                                 break;
1417                         }
1418                 }
1419         }
1420         return (cnt);
1421 }
1422
1423 static int
1424 sctp_count_max_addresses(struct sctp_inpcb *inp)
1425 {
1426         int cnt = 0;
1427
1428         SCTP_IPI_ADDR_RLOCK();
1429         /* count addresses for the endpoint's default VRF */
1430         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1431         SCTP_IPI_ADDR_RUNLOCK();
1432         return (cnt);
1433 }
1434
1435 static int
1436 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1437     size_t optsize, void *p, int delay)
1438 {
1439         int error = 0;
1440         int creat_lock_on = 0;
1441         struct sctp_tcb *stcb = NULL;
1442         struct sockaddr *sa;
1443         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1444         uint32_t vrf_id;
1445         int bad_addresses = 0;
1446         sctp_assoc_t *a_id;
1447
1448         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1449
1450         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1451             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1452                 /* We are already connected AND the TCP model */
1453                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1454                 return (EADDRINUSE);
1455         }
1456         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1457             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1458                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1459                 return (EINVAL);
1460         }
1461         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1462                 SCTP_INP_RLOCK(inp);
1463                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1464                 SCTP_INP_RUNLOCK(inp);
1465         }
1466         if (stcb) {
1467                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1468                 return (EALREADY);
1469         }
1470         SCTP_INP_INCR_REF(inp);
1471         SCTP_ASOC_CREATE_LOCK(inp);
1472         creat_lock_on = 1;
1473         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1474             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1475                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1476                 error = EFAULT;
1477                 goto out_now;
1478         }
1479         totaddrp = (int *)optval;
1480         totaddr = *totaddrp;
1481         sa = (struct sockaddr *)(totaddrp + 1);
1482         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1483         if ((stcb != NULL) || bad_addresses) {
1484                 /* Already have or am bring up an association */
1485                 SCTP_ASOC_CREATE_UNLOCK(inp);
1486                 creat_lock_on = 0;
1487                 if (stcb)
1488                         SCTP_TCB_UNLOCK(stcb);
1489                 if (bad_addresses == 0) {
1490                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1491                         error = EALREADY;
1492                 }
1493                 goto out_now;
1494         }
1495 #ifdef INET6
1496         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1497             (num_v6 > 0)) {
1498                 error = EINVAL;
1499                 goto out_now;
1500         }
1501         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1502             (num_v4 > 0)) {
1503                 struct in6pcb *inp6;
1504
1505                 inp6 = (struct in6pcb *)inp;
1506                 if (SCTP_IPV6_V6ONLY(inp6)) {
1507                         /*
1508                          * if IPV6_V6ONLY flag, ignore connections destined
1509                          * to a v4 addr or v4-mapped addr
1510                          */
1511                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1512                         error = EINVAL;
1513                         goto out_now;
1514                 }
1515         }
1516 #endif                          /* INET6 */
1517         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1518             SCTP_PCB_FLAGS_UNBOUND) {
1519                 /* Bind a ephemeral port */
1520                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1521                 if (error) {
1522                         goto out_now;
1523                 }
1524         }
1525         /* FIX ME: do we want to pass in a vrf on the connect call? */
1526         vrf_id = inp->def_vrf_id;
1527
1528
1529         /* We are GOOD to go */
1530         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1531             (struct thread *)p
1532             );
1533         if (stcb == NULL) {
1534                 /* Gak! no memory */
1535                 goto out_now;
1536         }
1537         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1538                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1539                 /* Set the connected flag so we can queue data */
1540                 soisconnecting(so);
1541         }
1542         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1543         /* move to second address */
1544         switch (sa->sa_family) {
1545 #ifdef INET
1546         case AF_INET:
1547                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1548                 break;
1549 #endif
1550 #ifdef INET6
1551         case AF_INET6:
1552                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1553                 break;
1554 #endif
1555         default:
1556                 break;
1557         }
1558
1559         error = 0;
1560         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1561         /* Fill in the return id */
1562         if (error) {
1563                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1564                 goto out_now;
1565         }
1566         a_id = (sctp_assoc_t *) optval;
1567         *a_id = sctp_get_associd(stcb);
1568
1569         /* initialize authentication parameters for the assoc */
1570         sctp_initialize_auth_params(inp, stcb);
1571
1572         if (delay) {
1573                 /* doing delayed connection */
1574                 stcb->asoc.delayed_connection = 1;
1575                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1576         } else {
1577                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1578                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1579         }
1580         SCTP_TCB_UNLOCK(stcb);
1581         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1582                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1583                 /* Set the connected flag so we can queue data */
1584                 soisconnecting(so);
1585         }
1586 out_now:
1587         if (creat_lock_on) {
1588                 SCTP_ASOC_CREATE_UNLOCK(inp);
1589         }
1590         SCTP_INP_DECR_REF(inp);
1591         return (error);
1592 }
1593
1594 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1595         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1596             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1597                 SCTP_INP_RLOCK(inp); \
1598                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1599                 if (stcb) { \
1600                         SCTP_TCB_LOCK(stcb); \
1601                 } \
1602                 SCTP_INP_RUNLOCK(inp); \
1603         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1604                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1605                 if (stcb == NULL) { \
1606                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1607                         error = ENOENT; \
1608                         break; \
1609                 } \
1610         } else { \
1611                 stcb = NULL; \
1612         } \
1613   }
1614
1615
1616 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1617         if (size < sizeof(type)) { \
1618                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1619                 error = EINVAL; \
1620                 break; \
1621         } else { \
1622                 destp = (type *)srcp; \
1623         } \
1624       }
1625
1626 static int
1627 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1628     void *p)
1629 {
1630         struct sctp_inpcb *inp = NULL;
1631         int error, val = 0;
1632         struct sctp_tcb *stcb = NULL;
1633
1634         if (optval == NULL) {
1635                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1636                 return (EINVAL);
1637         }
1638         inp = (struct sctp_inpcb *)so->so_pcb;
1639         if (inp == NULL) {
1640                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1641                 return EINVAL;
1642         }
1643         error = 0;
1644
1645         switch (optname) {
1646         case SCTP_NODELAY:
1647         case SCTP_AUTOCLOSE:
1648         case SCTP_EXPLICIT_EOR:
1649         case SCTP_AUTO_ASCONF:
1650         case SCTP_DISABLE_FRAGMENTS:
1651         case SCTP_I_WANT_MAPPED_V4_ADDR:
1652         case SCTP_USE_EXT_RCVINFO:
1653                 SCTP_INP_RLOCK(inp);
1654                 switch (optname) {
1655                 case SCTP_DISABLE_FRAGMENTS:
1656                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1657                         break;
1658                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1659                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1660                         break;
1661                 case SCTP_AUTO_ASCONF:
1662                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1663                                 /* only valid for bound all sockets */
1664                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1665                         } else {
1666                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1667                                 error = EINVAL;
1668                                 goto flags_out;
1669                         }
1670                         break;
1671                 case SCTP_EXPLICIT_EOR:
1672                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1673                         break;
1674                 case SCTP_NODELAY:
1675                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1676                         break;
1677                 case SCTP_USE_EXT_RCVINFO:
1678                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1679                         break;
1680                 case SCTP_AUTOCLOSE:
1681                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1682                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1683                         else
1684                                 val = 0;
1685                         break;
1686
1687                 default:
1688                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1689                         error = ENOPROTOOPT;
1690                 }               /* end switch (sopt->sopt_name) */
1691                 if (*optsize < sizeof(val)) {
1692                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1693                         error = EINVAL;
1694                 }
1695 flags_out:
1696                 SCTP_INP_RUNLOCK(inp);
1697                 if (error == 0) {
1698                         /* return the option value */
1699                         *(int *)optval = val;
1700                         *optsize = sizeof(val);
1701                 }
1702                 break;
1703         case SCTP_GET_PACKET_LOG:
1704                 {
1705 #ifdef  SCTP_PACKET_LOGGING
1706                         uint8_t *target;
1707                         int ret;
1708
1709                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1710                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1711                         *optsize = ret;
1712 #else
1713                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1714                         error = EOPNOTSUPP;
1715 #endif
1716                         break;
1717                 }
1718         case SCTP_REUSE_PORT:
1719                 {
1720                         uint32_t *value;
1721
1722                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1723                                 /* Can't do this for a 1-m socket */
1724                                 error = EINVAL;
1725                                 break;
1726                         }
1727                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1728                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1729                         *optsize = sizeof(uint32_t);
1730                         break;
1731                 }
1732         case SCTP_PARTIAL_DELIVERY_POINT:
1733                 {
1734                         uint32_t *value;
1735
1736                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1737                         *value = inp->partial_delivery_point;
1738                         *optsize = sizeof(uint32_t);
1739                         break;
1740                 }
1741         case SCTP_FRAGMENT_INTERLEAVE:
1742                 {
1743                         uint32_t *value;
1744
1745                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1746                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1747                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1748                                         *value = SCTP_FRAG_LEVEL_2;
1749                                 } else {
1750                                         *value = SCTP_FRAG_LEVEL_1;
1751                                 }
1752                         } else {
1753                                 *value = SCTP_FRAG_LEVEL_0;
1754                         }
1755                         *optsize = sizeof(uint32_t);
1756                         break;
1757                 }
1758         case SCTP_CMT_ON_OFF:
1759                 {
1760                         struct sctp_assoc_value *av;
1761
1762                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1763                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1764                         if (stcb) {
1765                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1766                                 SCTP_TCB_UNLOCK(stcb);
1767                         } else {
1768                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1769                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1770                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1771                                         SCTP_INP_RLOCK(inp);
1772                                         av->assoc_value = inp->sctp_cmt_on_off;
1773                                         SCTP_INP_RUNLOCK(inp);
1774                                 } else {
1775                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1776                                         error = EINVAL;
1777                                 }
1778                         }
1779                         if (error == 0) {
1780                                 *optsize = sizeof(struct sctp_assoc_value);
1781                         }
1782                         break;
1783                 }
1784         case SCTP_PLUGGABLE_CC:
1785                 {
1786                         struct sctp_assoc_value *av;
1787
1788                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1789                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1790                         if (stcb) {
1791                                 av->assoc_value = stcb->asoc.congestion_control_module;
1792                                 SCTP_TCB_UNLOCK(stcb);
1793                         } else {
1794                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1795                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1796                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1797                                         SCTP_INP_RLOCK(inp);
1798                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1799                                         SCTP_INP_RUNLOCK(inp);
1800                                 } else {
1801                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1802                                         error = EINVAL;
1803                                 }
1804                         }
1805                         if (error == 0) {
1806                                 *optsize = sizeof(struct sctp_assoc_value);
1807                         }
1808                         break;
1809                 }
1810         case SCTP_CC_OPTION:
1811                 {
1812                         struct sctp_cc_option *cc_opt;
1813
1814                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1815                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1816                         if (stcb == NULL) {
1817                                 error = EINVAL;
1818                         } else {
1819                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1820                                         error = ENOTSUP;
1821                                 } else {
1822                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1823                                         *optsize = sizeof(struct sctp_cc_option);
1824                                 }
1825                                 SCTP_TCB_UNLOCK(stcb);
1826                         }
1827                         break;
1828                 }
1829         case SCTP_PLUGGABLE_SS:
1830                 {
1831                         struct sctp_assoc_value *av;
1832
1833                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1834                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1835                         if (stcb) {
1836                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1837                                 SCTP_TCB_UNLOCK(stcb);
1838                         } else {
1839                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1840                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1841                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1842                                         SCTP_INP_RLOCK(inp);
1843                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1844                                         SCTP_INP_RUNLOCK(inp);
1845                                 } else {
1846                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1847                                         error = EINVAL;
1848                                 }
1849                         }
1850                         if (error == 0) {
1851                                 *optsize = sizeof(struct sctp_assoc_value);
1852                         }
1853                         break;
1854                 }
1855         case SCTP_SS_VALUE:
1856                 {
1857                         struct sctp_stream_value *av;
1858
1859                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1860                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1861                         if (stcb) {
1862                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1863                                     &av->stream_value) < 0) {
1864                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1865                                         error = EINVAL;
1866                                 } else {
1867                                         *optsize = sizeof(struct sctp_stream_value);
1868                                 }
1869                                 SCTP_TCB_UNLOCK(stcb);
1870                         } else {
1871                                 /*
1872                                  * Can't get stream value without
1873                                  * association
1874                                  */
1875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1876                                 error = EINVAL;
1877                         }
1878                         break;
1879                 }
1880         case SCTP_GET_ADDR_LEN:
1881                 {
1882                         struct sctp_assoc_value *av;
1883
1884                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1885                         error = EINVAL;
1886 #ifdef INET
1887                         if (av->assoc_value == AF_INET) {
1888                                 av->assoc_value = sizeof(struct sockaddr_in);
1889                                 error = 0;
1890                         }
1891 #endif
1892 #ifdef INET6
1893                         if (av->assoc_value == AF_INET6) {
1894                                 av->assoc_value = sizeof(struct sockaddr_in6);
1895                                 error = 0;
1896                         }
1897 #endif
1898                         if (error) {
1899                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1900                         } else {
1901                                 *optsize = sizeof(struct sctp_assoc_value);
1902                         }
1903                         break;
1904                 }
1905         case SCTP_GET_ASSOC_NUMBER:
1906                 {
1907                         uint32_t *value, cnt;
1908
1909                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1910                         cnt = 0;
1911                         SCTP_INP_RLOCK(inp);
1912                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1913                                 cnt++;
1914                         }
1915                         SCTP_INP_RUNLOCK(inp);
1916                         *value = cnt;
1917                         *optsize = sizeof(uint32_t);
1918                         break;
1919                 }
1920         case SCTP_GET_ASSOC_ID_LIST:
1921                 {
1922                         struct sctp_assoc_ids *ids;
1923                         unsigned int at, limit;
1924
1925                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1926                         at = 0;
1927                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1928                         SCTP_INP_RLOCK(inp);
1929                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1930                                 if (at < limit) {
1931                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1932                                 } else {
1933                                         error = EINVAL;
1934                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1935                                         break;
1936                                 }
1937                         }
1938                         SCTP_INP_RUNLOCK(inp);
1939                         if (error == 0) {
1940                                 ids->gaids_number_of_ids = at;
1941                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1942                         }
1943                         break;
1944                 }
1945         case SCTP_CONTEXT:
1946                 {
1947                         struct sctp_assoc_value *av;
1948
1949                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1950                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1951
1952                         if (stcb) {
1953                                 av->assoc_value = stcb->asoc.context;
1954                                 SCTP_TCB_UNLOCK(stcb);
1955                         } else {
1956                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1957                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1958                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1959                                         SCTP_INP_RLOCK(inp);
1960                                         av->assoc_value = inp->sctp_context;
1961                                         SCTP_INP_RUNLOCK(inp);
1962                                 } else {
1963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1964                                         error = EINVAL;
1965                                 }
1966                         }
1967                         if (error == 0) {
1968                                 *optsize = sizeof(struct sctp_assoc_value);
1969                         }
1970                         break;
1971                 }
1972         case SCTP_VRF_ID:
1973                 {
1974                         uint32_t *default_vrfid;
1975
1976                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1977                         *default_vrfid = inp->def_vrf_id;
1978                         *optsize = sizeof(uint32_t);
1979                         break;
1980                 }
1981         case SCTP_GET_ASOC_VRF:
1982                 {
1983                         struct sctp_assoc_value *id;
1984
1985                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1986                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1987                         if (stcb == NULL) {
1988                                 error = EINVAL;
1989                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1990                         } else {
1991                                 id->assoc_value = stcb->asoc.vrf_id;
1992                                 *optsize = sizeof(struct sctp_assoc_value);
1993                         }
1994                         break;
1995                 }
1996         case SCTP_GET_VRF_IDS:
1997                 {
1998                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1999                         error = EOPNOTSUPP;
2000                         break;
2001                 }
2002         case SCTP_GET_NONCE_VALUES:
2003                 {
2004                         struct sctp_get_nonce_values *gnv;
2005
2006                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2007                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2008
2009                         if (stcb) {
2010                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2011                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2012                                 SCTP_TCB_UNLOCK(stcb);
2013                                 *optsize = sizeof(struct sctp_get_nonce_values);
2014                         } else {
2015                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2016                                 error = ENOTCONN;
2017                         }
2018                         break;
2019                 }
2020         case SCTP_DELAYED_SACK:
2021                 {
2022                         struct sctp_sack_info *sack;
2023
2024                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2025                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2026                         if (stcb) {
2027                                 sack->sack_delay = stcb->asoc.delayed_ack;
2028                                 sack->sack_freq = stcb->asoc.sack_freq;
2029                                 SCTP_TCB_UNLOCK(stcb);
2030                         } else {
2031                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2032                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2033                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2034                                         SCTP_INP_RLOCK(inp);
2035                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2036                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2037                                         SCTP_INP_RUNLOCK(inp);
2038                                 } else {
2039                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2040                                         error = EINVAL;
2041                                 }
2042                         }
2043                         if (error == 0) {
2044                                 *optsize = sizeof(struct sctp_sack_info);
2045                         }
2046                         break;
2047                 }
2048         case SCTP_GET_SNDBUF_USE:
2049                 {
2050                         struct sctp_sockstat *ss;
2051
2052                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2053                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2054
2055                         if (stcb) {
2056                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2057                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2058                                     stcb->asoc.size_on_all_streams);
2059                                 SCTP_TCB_UNLOCK(stcb);
2060                                 *optsize = sizeof(struct sctp_sockstat);
2061                         } else {
2062                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2063                                 error = ENOTCONN;
2064                         }
2065                         break;
2066                 }
2067         case SCTP_MAX_BURST:
2068                 {
2069                         struct sctp_assoc_value *av;
2070
2071                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2072                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2073
2074                         if (stcb) {
2075                                 av->assoc_value = stcb->asoc.max_burst;
2076                                 SCTP_TCB_UNLOCK(stcb);
2077                         } else {
2078                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2079                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2080                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2081                                         SCTP_INP_RLOCK(inp);
2082                                         av->assoc_value = inp->sctp_ep.max_burst;
2083                                         SCTP_INP_RUNLOCK(inp);
2084                                 } else {
2085                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2086                                         error = EINVAL;
2087                                 }
2088                         }
2089                         if (error == 0) {
2090                                 *optsize = sizeof(struct sctp_assoc_value);
2091                         }
2092                         break;
2093                 }
2094         case SCTP_MAXSEG:
2095                 {
2096                         struct sctp_assoc_value *av;
2097                         int ovh;
2098
2099                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2100                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2101
2102                         if (stcb) {
2103                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2104                                 SCTP_TCB_UNLOCK(stcb);
2105                         } else {
2106                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2107                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2108                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2109                                         SCTP_INP_RLOCK(inp);
2110                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2111                                                 ovh = SCTP_MED_OVERHEAD;
2112                                         } else {
2113                                                 ovh = SCTP_MED_V4_OVERHEAD;
2114                                         }
2115                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2116                                                 av->assoc_value = 0;
2117                                         else
2118                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2119                                         SCTP_INP_RUNLOCK(inp);
2120                                 } else {
2121                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2122                                         error = EINVAL;
2123                                 }
2124                         }
2125                         if (error == 0) {
2126                                 *optsize = sizeof(struct sctp_assoc_value);
2127                         }
2128                         break;
2129                 }
2130         case SCTP_GET_STAT_LOG:
2131                 error = sctp_fill_stat_log(optval, optsize);
2132                 break;
2133         case SCTP_EVENTS:
2134                 {
2135                         struct sctp_event_subscribe *events;
2136
2137                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2138                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2139                         SCTP_INP_RLOCK(inp);
2140                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2141                                 events->sctp_data_io_event = 1;
2142
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2144                                 events->sctp_association_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2147                                 events->sctp_address_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2150                                 events->sctp_send_failure_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2153                                 events->sctp_peer_error_event = 1;
2154
2155                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2156                                 events->sctp_shutdown_event = 1;
2157
2158                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2159                                 events->sctp_partial_delivery_event = 1;
2160
2161                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2162                                 events->sctp_adaptation_layer_event = 1;
2163
2164                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2165                                 events->sctp_authentication_event = 1;
2166
2167                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2168                                 events->sctp_sender_dry_event = 1;
2169
2170                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2171                                 events->sctp_stream_reset_event = 1;
2172                         SCTP_INP_RUNLOCK(inp);
2173                         *optsize = sizeof(struct sctp_event_subscribe);
2174                         break;
2175                 }
2176         case SCTP_ADAPTATION_LAYER:
2177                 {
2178                         uint32_t *value;
2179
2180                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2181
2182                         SCTP_INP_RLOCK(inp);
2183                         *value = inp->sctp_ep.adaptation_layer_indicator;
2184                         SCTP_INP_RUNLOCK(inp);
2185                         *optsize = sizeof(uint32_t);
2186                         break;
2187                 }
2188         case SCTP_SET_INITIAL_DBG_SEQ:
2189                 {
2190                         uint32_t *value;
2191
2192                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2193                         SCTP_INP_RLOCK(inp);
2194                         *value = inp->sctp_ep.initial_sequence_debug;
2195                         SCTP_INP_RUNLOCK(inp);
2196                         *optsize = sizeof(uint32_t);
2197                         break;
2198                 }
2199         case SCTP_GET_LOCAL_ADDR_SIZE:
2200                 {
2201                         uint32_t *value;
2202
2203                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2204                         SCTP_INP_RLOCK(inp);
2205                         *value = sctp_count_max_addresses(inp);
2206                         SCTP_INP_RUNLOCK(inp);
2207                         *optsize = sizeof(uint32_t);
2208                         break;
2209                 }
2210         case SCTP_GET_REMOTE_ADDR_SIZE:
2211                 {
2212                         uint32_t *value;
2213                         size_t size;
2214                         struct sctp_nets *net;
2215
2216                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2217                         /* FIXME MT: change to sctp_assoc_value? */
2218                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2219
2220                         if (stcb) {
2221                                 size = 0;
2222                                 /* Count the sizes */
2223                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2224                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2225                                                 size += sizeof(struct sockaddr_in6);
2226                                         } else {
2227                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2228 #ifdef INET
2229                                                 case AF_INET:
2230                                                         size += sizeof(struct sockaddr_in);
2231                                                         break;
2232 #endif
2233 #ifdef INET6
2234                                                 case AF_INET6:
2235                                                         size += sizeof(struct sockaddr_in6);
2236                                                         break;
2237 #endif
2238                                                 default:
2239                                                         break;
2240                                                 }
2241                                         }
2242                                 }
2243                                 SCTP_TCB_UNLOCK(stcb);
2244                                 *value = (uint32_t) size;
2245                                 *optsize = sizeof(uint32_t);
2246                         } else {
2247                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2248                                 error = ENOTCONN;
2249                         }
2250                         break;
2251                 }
2252         case SCTP_GET_PEER_ADDRESSES:
2253                 /*
2254                  * Get the address information, an array is passed in to
2255                  * fill up we pack it.
2256                  */
2257                 {
2258                         size_t cpsz, left;
2259                         struct sockaddr_storage *sas;
2260                         struct sctp_nets *net;
2261                         struct sctp_getaddresses *saddr;
2262
2263                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2264                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2265
2266                         if (stcb) {
2267                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2268                                 *optsize = sizeof(struct sctp_getaddresses);
2269                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2270
2271                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2272                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2273                                                 cpsz = sizeof(struct sockaddr_in6);
2274                                         } else {
2275                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2276 #ifdef INET
2277                                                 case AF_INET:
2278                                                         cpsz = sizeof(struct sockaddr_in);
2279                                                         break;
2280 #endif
2281 #ifdef INET6
2282                                                 case AF_INET6:
2283                                                         cpsz = sizeof(struct sockaddr_in6);
2284                                                         break;
2285 #endif
2286                                                 default:
2287                                                         cpsz = 0;
2288                                                         break;
2289                                                 }
2290                                         }
2291                                         if (cpsz == 0) {
2292                                                 break;
2293                                         }
2294                                         if (left < cpsz) {
2295                                                 /* not enough room. */
2296                                                 break;
2297                                         }
2298 #if defined(INET) && defined(INET6)
2299                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2300                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2301                                                 /* Must map the address */
2302                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2303                                                     (struct sockaddr_in6 *)sas);
2304                                         } else {
2305 #endif
2306                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2307 #if defined(INET) && defined(INET6)
2308                                         }
2309 #endif
2310                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2311
2312                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2313                                         left -= cpsz;
2314                                         *optsize += cpsz;
2315                                 }
2316                                 SCTP_TCB_UNLOCK(stcb);
2317                         } else {
2318                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2319                                 error = ENOENT;
2320                         }
2321                         break;
2322                 }
2323         case SCTP_GET_LOCAL_ADDRESSES:
2324                 {
2325                         size_t limit, actual;
2326                         struct sockaddr_storage *sas;
2327                         struct sctp_getaddresses *saddr;
2328
2329                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2330                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2331
2332                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2333                         limit = *optsize - sizeof(sctp_assoc_t);
2334                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2335                         if (stcb) {
2336                                 SCTP_TCB_UNLOCK(stcb);
2337                         }
2338                         *optsize = sizeof(struct sockaddr_storage) + actual;
2339                         break;
2340                 }
2341         case SCTP_PEER_ADDR_PARAMS:
2342                 {
2343                         struct sctp_paddrparams *paddrp;
2344                         struct sctp_nets *net;
2345
2346                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2347                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2348
2349                         net = NULL;
2350                         if (stcb) {
2351                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2352                         } else {
2353                                 /*
2354                                  * We increment here since
2355                                  * sctp_findassociation_ep_addr() wil do a
2356                                  * decrement if it finds the stcb as long as
2357                                  * the locked tcb (last argument) is NOT a
2358                                  * TCB.. aka NULL.
2359                                  */
2360                                 SCTP_INP_INCR_REF(inp);
2361                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2362                                 if (stcb == NULL) {
2363                                         SCTP_INP_DECR_REF(inp);
2364                                 }
2365                         }
2366                         if (stcb && (net == NULL)) {
2367                                 struct sockaddr *sa;
2368
2369                                 sa = (struct sockaddr *)&paddrp->spp_address;
2370 #ifdef INET
2371                                 if (sa->sa_family == AF_INET) {
2372                                         struct sockaddr_in *sin;
2373
2374                                         sin = (struct sockaddr_in *)sa;
2375                                         if (sin->sin_addr.s_addr) {
2376                                                 error = EINVAL;
2377                                                 SCTP_TCB_UNLOCK(stcb);
2378                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2379                                                 break;
2380                                         }
2381                                 } else
2382 #endif
2383 #ifdef INET6
2384                                 if (sa->sa_family == AF_INET6) {
2385                                         struct sockaddr_in6 *sin6;
2386
2387                                         sin6 = (struct sockaddr_in6 *)sa;
2388                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2389                                                 error = EINVAL;
2390                                                 SCTP_TCB_UNLOCK(stcb);
2391                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2392                                                 break;
2393                                         }
2394                                 } else
2395 #endif
2396                                 {
2397                                         error = EAFNOSUPPORT;
2398                                         SCTP_TCB_UNLOCK(stcb);
2399                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2400                                         break;
2401                                 }
2402                         }
2403                         if (stcb) {
2404                                 /* Applies to the specific association */
2405                                 paddrp->spp_flags = 0;
2406                                 if (net) {
2407                                         int ovh;
2408
2409                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2410                                                 ovh = SCTP_MED_OVERHEAD;
2411                                         } else {
2412                                                 ovh = SCTP_MED_V4_OVERHEAD;
2413                                         }
2414
2415                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2416                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2417                                         paddrp->spp_pathmtu = net->mtu - ovh;
2418                                         /* get flags for HB */
2419                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2420                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2421                                         } else {
2422                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2423                                         }
2424                                         /* get flags for PMTU */
2425                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2426                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2427                                         } else {
2428                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2429                                         }
2430                                         if (net->dscp & 0x01) {
2431                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2432                                                 paddrp->spp_flags |= SPP_DSCP;
2433                                         }
2434 #ifdef INET6
2435                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2436                                             (net->flowlabel & 0x80000000)) {
2437                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2438                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2439                                         }
2440 #endif
2441                                 } else {
2442                                         /*
2443                                          * No destination so return default
2444                                          * value
2445                                          */
2446                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2447                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2448                                         if (stcb->asoc.default_dscp & 0x01) {
2449                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2450                                                 paddrp->spp_flags |= SPP_DSCP;
2451                                         }
2452 #ifdef INET6
2453                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2454                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2455                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2456                                         }
2457 #endif
2458                                         /* default settings should be these */
2459                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2460                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2461                                         } else {
2462                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2463                                         }
2464                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2465                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2466                                         } else {
2467                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2468                                         }
2469                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2470                                 }
2471                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2472                                 SCTP_TCB_UNLOCK(stcb);
2473                         } else {
2474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2476                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2477                                         /* Use endpoint defaults */
2478                                         SCTP_INP_RLOCK(inp);
2479                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2480                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2481                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2482                                         /* get inp's default */
2483                                         if (inp->sctp_ep.default_dscp & 0x01) {
2484                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2485                                                 paddrp->spp_flags |= SPP_DSCP;
2486                                         }
2487 #ifdef INET6
2488                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2489                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2490                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2491                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2492                                         }
2493 #endif
2494                                         /* can't return this */
2495                                         paddrp->spp_pathmtu = 0;
2496
2497                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2498                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2499                                         } else {
2500                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2501                                         }
2502                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2503                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2504                                         } else {
2505                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2506                                         }
2507                                         SCTP_INP_RUNLOCK(inp);
2508                                 } else {
2509                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2510                                         error = EINVAL;
2511                                 }
2512                         }
2513                         if (error == 0) {
2514                                 *optsize = sizeof(struct sctp_paddrparams);
2515                         }
2516                         break;
2517                 }
2518         case SCTP_GET_PEER_ADDR_INFO:
2519                 {
2520                         struct sctp_paddrinfo *paddri;
2521                         struct sctp_nets *net;
2522
2523                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2524                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2525
2526                         net = NULL;
2527                         if (stcb) {
2528                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2529                         } else {
2530                                 /*
2531                                  * We increment here since
2532                                  * sctp_findassociation_ep_addr() wil do a
2533                                  * decrement if it finds the stcb as long as
2534                                  * the locked tcb (last argument) is NOT a
2535                                  * TCB.. aka NULL.
2536                                  */
2537                                 SCTP_INP_INCR_REF(inp);
2538                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2539                                 if (stcb == NULL) {
2540                                         SCTP_INP_DECR_REF(inp);
2541                                 }
2542                         }
2543
2544                         if ((stcb) && (net)) {
2545                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2546                                         /* It's unconfirmed */
2547                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2548                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2549                                         /* It's active */
2550                                         paddri->spinfo_state = SCTP_ACTIVE;
2551                                 } else {
2552                                         /* It's inactive */
2553                                         paddri->spinfo_state = SCTP_INACTIVE;
2554                                 }
2555                                 paddri->spinfo_cwnd = net->cwnd;
2556                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2557                                 paddri->spinfo_rto = net->RTO;
2558                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2559                                 paddri->spinfo_mtu = net->mtu;
2560                                 SCTP_TCB_UNLOCK(stcb);
2561                                 *optsize = sizeof(struct sctp_paddrinfo);
2562                         } else {
2563                                 if (stcb) {
2564                                         SCTP_TCB_UNLOCK(stcb);
2565                                 }
2566                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2567                                 error = ENOENT;
2568                         }
2569                         break;
2570                 }
2571         case SCTP_PCB_STATUS:
2572                 {
2573                         struct sctp_pcbinfo *spcb;
2574
2575                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2576                         sctp_fill_pcbinfo(spcb);
2577                         *optsize = sizeof(struct sctp_pcbinfo);
2578                         break;
2579                 }
2580         case SCTP_STATUS:
2581                 {
2582                         struct sctp_nets *net;
2583                         struct sctp_status *sstat;
2584
2585                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2586                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2587
2588                         if (stcb == NULL) {
2589                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2590                                 error = EINVAL;
2591                                 break;
2592                         }
2593                         /*
2594                          * I think passing the state is fine since
2595                          * sctp_constants.h will be available to the user
2596                          * land.
2597                          */
2598                         sstat->sstat_state = stcb->asoc.state;
2599                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2600                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2601                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2602                         /*
2603                          * We can't include chunks that have been passed to
2604                          * the socket layer. Only things in queue.
2605                          */
2606                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2607                             stcb->asoc.cnt_on_all_streams);
2608
2609
2610                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2611                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2612                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2613                         memcpy(&sstat->sstat_primary.spinfo_address,
2614                             &stcb->asoc.primary_destination->ro._l_addr,
2615                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2616                         net = stcb->asoc.primary_destination;
2617                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2618                         /*
2619                          * Again the user can get info from sctp_constants.h
2620                          * for what the state of the network is.
2621                          */
2622                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2623                                 /* It's unconfirmed */
2624                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2625                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2626                                 /* It's active */
2627                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2628                         } else {
2629                                 /* It's inactive */
2630                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2631                         }
2632                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2633                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2634                         sstat->sstat_primary.spinfo_rto = net->RTO;
2635                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2636                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2637                         SCTP_TCB_UNLOCK(stcb);
2638                         *optsize = sizeof(struct sctp_status);
2639                         break;
2640                 }
2641         case SCTP_RTOINFO:
2642                 {
2643                         struct sctp_rtoinfo *srto;
2644
2645                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2646                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2647
2648                         if (stcb) {
2649                                 srto->srto_initial = stcb->asoc.initial_rto;
2650                                 srto->srto_max = stcb->asoc.maxrto;
2651                                 srto->srto_min = stcb->asoc.minrto;
2652                                 SCTP_TCB_UNLOCK(stcb);
2653                         } else {
2654                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2655                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2656                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2657                                         SCTP_INP_RLOCK(inp);
2658                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2659                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2660                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2661                                         SCTP_INP_RUNLOCK(inp);
2662                                 } else {
2663                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2664                                         error = EINVAL;
2665                                 }
2666                         }
2667                         if (error == 0) {
2668                                 *optsize = sizeof(struct sctp_rtoinfo);
2669                         }
2670                         break;
2671                 }
2672         case SCTP_TIMEOUTS:
2673                 {
2674                         struct sctp_timeouts *stimo;
2675
2676                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2677                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2678
2679                         if (stcb) {
2680                                 stimo->stimo_init = stcb->asoc.timoinit;
2681                                 stimo->stimo_data = stcb->asoc.timodata;
2682                                 stimo->stimo_sack = stcb->asoc.timosack;
2683                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2684                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2685                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2686                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2687                                 SCTP_TCB_UNLOCK(stcb);
2688                                 *optsize = sizeof(struct sctp_timeouts);
2689                         } else {
2690                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2691                                 error = EINVAL;
2692                         }
2693                         break;
2694                 }
2695         case SCTP_ASSOCINFO:
2696                 {
2697                         struct sctp_assocparams *sasoc;
2698
2699                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2700                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2701
2702                         if (stcb) {
2703                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2704                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2705                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2706                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2707                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
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                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2713                                         SCTP_INP_RLOCK(inp);
2714                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2715                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2716                                         sasoc->sasoc_number_peer_destinations = 0;
2717                                         sasoc->sasoc_peer_rwnd = 0;
2718                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2719                                         SCTP_INP_RUNLOCK(inp);
2720                                 } else {
2721                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2722                                         error = EINVAL;
2723                                 }
2724                         }
2725                         if (error == 0) {
2726                                 *optsize = sizeof(struct sctp_assocparams);
2727                         }
2728                         break;
2729                 }
2730         case SCTP_DEFAULT_SEND_PARAM:
2731                 {
2732                         struct sctp_sndrcvinfo *s_info;
2733
2734                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2735                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2736
2737                         if (stcb) {
2738                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2739                                 SCTP_TCB_UNLOCK(stcb);
2740                         } else {
2741                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2742                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2743                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2744                                         SCTP_INP_RLOCK(inp);
2745                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2746                                         SCTP_INP_RUNLOCK(inp);
2747                                 } else {
2748                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2749                                         error = EINVAL;
2750                                 }
2751                         }
2752                         if (error == 0) {
2753                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2754                         }
2755                         break;
2756                 }
2757         case SCTP_INITMSG:
2758                 {
2759                         struct sctp_initmsg *sinit;
2760
2761                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2762                         SCTP_INP_RLOCK(inp);
2763                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2764                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2765                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2766                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2767                         SCTP_INP_RUNLOCK(inp);
2768                         *optsize = sizeof(struct sctp_initmsg);
2769                         break;
2770                 }
2771         case SCTP_PRIMARY_ADDR:
2772                 /* we allow a "get" operation on this */
2773                 {
2774                         struct sctp_setprim *ssp;
2775
2776                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2777                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2778
2779                         if (stcb) {
2780                                 /* simply copy out the sockaddr_storage... */
2781                                 int len;
2782
2783                                 len = *optsize;
2784                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2785                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2786
2787                                 memcpy(&ssp->ssp_addr,
2788                                     &stcb->asoc.primary_destination->ro._l_addr,
2789                                     len);
2790                                 SCTP_TCB_UNLOCK(stcb);
2791                                 *optsize = sizeof(struct sctp_setprim);
2792                         } else {
2793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2794                                 error = EINVAL;
2795                         }
2796                         break;
2797                 }
2798         case SCTP_HMAC_IDENT:
2799                 {
2800                         struct sctp_hmacalgo *shmac;
2801                         sctp_hmaclist_t *hmaclist;
2802                         uint32_t size;
2803                         int i;
2804
2805                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2806
2807                         SCTP_INP_RLOCK(inp);
2808                         hmaclist = inp->sctp_ep.local_hmacs;
2809                         if (hmaclist == NULL) {
2810                                 /* no HMACs to return */
2811                                 *optsize = sizeof(*shmac);
2812                                 SCTP_INP_RUNLOCK(inp);
2813                                 break;
2814                         }
2815                         /* is there room for all of the hmac ids? */
2816                         size = sizeof(*shmac) + (hmaclist->num_algo *
2817                             sizeof(shmac->shmac_idents[0]));
2818                         if ((size_t)(*optsize) < size) {
2819                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2820                                 error = EINVAL;
2821                                 SCTP_INP_RUNLOCK(inp);
2822                                 break;
2823                         }
2824                         /* copy in the list */
2825                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2826                         for (i = 0; i < hmaclist->num_algo; i++) {
2827                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2828                         }
2829                         SCTP_INP_RUNLOCK(inp);
2830                         *optsize = size;
2831                         break;
2832                 }
2833         case SCTP_AUTH_ACTIVE_KEY:
2834                 {
2835                         struct sctp_authkeyid *scact;
2836
2837                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2838                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2839
2840                         if (stcb) {
2841                                 /* get the active key on the assoc */
2842                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2843                                 SCTP_TCB_UNLOCK(stcb);
2844                         } else {
2845                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2846                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2847                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2848                                         /* get the endpoint active key */
2849                                         SCTP_INP_RLOCK(inp);
2850                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2851                                         SCTP_INP_RUNLOCK(inp);
2852                                 } else {
2853                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2854                                         error = EINVAL;
2855                                 }
2856                         }
2857                         if (error == 0) {
2858                                 *optsize = sizeof(struct sctp_authkeyid);
2859                         }
2860                         break;
2861                 }
2862         case SCTP_LOCAL_AUTH_CHUNKS:
2863                 {
2864                         struct sctp_authchunks *sac;
2865                         sctp_auth_chklist_t *chklist = NULL;
2866                         size_t size = 0;
2867
2868                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2869                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2870
2871                         if (stcb) {
2872                                 /* get off the assoc */
2873                                 chklist = stcb->asoc.local_auth_chunks;
2874                                 /* is there enough space? */
2875                                 size = sctp_auth_get_chklist_size(chklist);
2876                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2877                                         error = EINVAL;
2878                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2879                                 } else {
2880                                         /* copy in the chunks */
2881                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2882                                         *optsize = sizeof(struct sctp_authchunks) + size;
2883                                 }
2884                                 SCTP_TCB_UNLOCK(stcb);
2885                         } else {
2886                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2887                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2888                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2889                                         /* get off the endpoint */
2890                                         SCTP_INP_RLOCK(inp);
2891                                         chklist = inp->sctp_ep.local_auth_chunks;
2892                                         /* is there enough space? */
2893                                         size = sctp_auth_get_chklist_size(chklist);
2894                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2895                                                 error = EINVAL;
2896                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2897                                         } else {
2898                                                 /* copy in the chunks */
2899                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2900                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2901                                         }
2902                                         SCTP_INP_RUNLOCK(inp);
2903                                 } else {
2904                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2905                                         error = EINVAL;
2906                                 }
2907                         }
2908                         break;
2909                 }
2910         case SCTP_PEER_AUTH_CHUNKS:
2911                 {
2912                         struct sctp_authchunks *sac;
2913                         sctp_auth_chklist_t *chklist = NULL;
2914                         size_t size = 0;
2915
2916                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2917                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2918
2919                         if (stcb) {
2920                                 /* get off the assoc */
2921                                 chklist = stcb->asoc.peer_auth_chunks;
2922                                 /* is there enough space? */
2923                                 size = sctp_auth_get_chklist_size(chklist);
2924                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2925                                         error = EINVAL;
2926                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2927                                 } else {
2928                                         /* copy in the chunks */
2929                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2930                                         *optsize = sizeof(struct sctp_authchunks) + size;
2931                                 }
2932                                 SCTP_TCB_UNLOCK(stcb);
2933                         } else {
2934                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2935                                 error = ENOENT;
2936                         }
2937                         break;
2938                 }
2939         case SCTP_EVENT:
2940                 {
2941                         struct sctp_event *event;
2942                         uint32_t event_type;
2943
2944                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2945                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2946
2947                         switch (event->se_type) {
2948                         case SCTP_ASSOC_CHANGE:
2949                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2950                                 break;
2951                         case SCTP_PEER_ADDR_CHANGE:
2952                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2953                                 break;
2954                         case SCTP_REMOTE_ERROR:
2955                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2956                                 break;
2957                         case SCTP_SEND_FAILED:
2958                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2959                                 break;
2960                         case SCTP_SHUTDOWN_EVENT:
2961                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2962                                 break;
2963                         case SCTP_ADAPTATION_INDICATION:
2964                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2965                                 break;
2966                         case SCTP_PARTIAL_DELIVERY_EVENT:
2967                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2968                                 break;
2969                         case SCTP_AUTHENTICATION_EVENT:
2970                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2971                                 break;
2972                         case SCTP_STREAM_RESET_EVENT:
2973                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2974                                 break;
2975                         case SCTP_SENDER_DRY_EVENT:
2976                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2977                                 break;
2978                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2979                                 event_type = 0;
2980                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2981                                 error = ENOTSUP;
2982                                 break;
2983                         default:
2984                                 event_type = 0;
2985                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2986                                 error = EINVAL;
2987                                 break;
2988                         }
2989                         if (event_type > 0) {
2990                                 if (stcb) {
2991                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
2992                                         SCTP_TCB_UNLOCK(stcb);
2993                                 } else {
2994                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2995                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2996                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
2997                                                 SCTP_INP_RLOCK(inp);
2998                                                 event->se_on = sctp_is_feature_on(inp, event_type);
2999                                                 SCTP_INP_RUNLOCK(inp);
3000                                         } else {
3001                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3002                                                 error = EINVAL;
3003                                         }
3004                                 }
3005                         }
3006                         if (error == 0) {
3007                                 *optsize = sizeof(struct sctp_event);
3008                         }
3009                         break;
3010                 }
3011         case SCTP_RECVRCVINFO:
3012                 {
3013                         int onoff;
3014
3015                         if (*optsize < sizeof(int)) {
3016                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3017                                 error = EINVAL;
3018                         } else {
3019                                 SCTP_INP_RLOCK(inp);
3020                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3021                                 SCTP_INP_RUNLOCK(inp);
3022                         }
3023                         if (error == 0) {
3024                                 /* return the option value */
3025                                 *(int *)optval = onoff;
3026                                 *optsize = sizeof(int);
3027                         }
3028                         break;
3029                 }
3030         case SCTP_RECVNXTINFO:
3031                 {
3032                         int onoff;
3033
3034                         if (*optsize < sizeof(int)) {
3035                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3036                                 error = EINVAL;
3037                         } else {
3038                                 SCTP_INP_RLOCK(inp);
3039                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3040                                 SCTP_INP_RUNLOCK(inp);
3041                         }
3042                         if (error == 0) {
3043                                 /* return the option value */
3044                                 *(int *)optval = onoff;
3045                                 *optsize = sizeof(int);
3046                         }
3047                         break;
3048                 }
3049         case SCTP_DEFAULT_SNDINFO:
3050                 {
3051                         struct sctp_sndinfo *info;
3052
3053                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3054                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3055
3056                         if (stcb) {
3057                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3058                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3059                                 info->snd_flags &= 0xfff0;
3060                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3061                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3062                                 SCTP_TCB_UNLOCK(stcb);
3063                         } else {
3064                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3065                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3066                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3067                                         SCTP_INP_RLOCK(inp);
3068                                         info->snd_sid = inp->def_send.sinfo_stream;
3069                                         info->snd_flags = inp->def_send.sinfo_flags;
3070                                         info->snd_flags &= 0xfff0;
3071                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3072                                         info->snd_context = inp->def_send.sinfo_context;
3073                                         SCTP_INP_RUNLOCK(inp);
3074                                 } else {
3075                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3076                                         error = EINVAL;
3077                                 }
3078                         }
3079                         if (error == 0) {
3080                                 *optsize = sizeof(struct sctp_sndinfo);
3081                         }
3082                         break;
3083                 }
3084         case SCTP_DEFAULT_PRINFO:
3085                 {
3086                         struct sctp_default_prinfo *info;
3087
3088                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3089                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3090
3091                         if (stcb) {
3092                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3093                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3094                                 SCTP_TCB_UNLOCK(stcb);
3095                         } else {
3096                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3097                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3098                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3099                                         SCTP_INP_RLOCK(inp);
3100                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3101                                         info->pr_value = inp->def_send.sinfo_timetolive;
3102                                         SCTP_INP_RUNLOCK(inp);
3103                                 } else {
3104                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3105                                         error = EINVAL;
3106                                 }
3107                         }
3108                         if (error == 0) {
3109                                 *optsize = sizeof(struct sctp_default_prinfo);
3110                         }
3111                         break;
3112                 }
3113         case SCTP_PEER_ADDR_THLDS:
3114                 {
3115                         struct sctp_paddrthlds *thlds;
3116                         struct sctp_nets *net;
3117
3118                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3119                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3120
3121                         net = NULL;
3122                         if (stcb) {
3123                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3124                         } else {
3125                                 /*
3126                                  * We increment here since
3127                                  * sctp_findassociation_ep_addr() wil do a
3128                                  * decrement if it finds the stcb as long as
3129                                  * the locked tcb (last argument) is NOT a
3130                                  * TCB.. aka NULL.
3131                                  */
3132                                 SCTP_INP_INCR_REF(inp);
3133                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3134                                 if (stcb == NULL) {
3135                                         SCTP_INP_DECR_REF(inp);
3136                                 }
3137                         }
3138                         if (stcb && (net == NULL)) {
3139                                 struct sockaddr *sa;
3140
3141                                 sa = (struct sockaddr *)&thlds->spt_address;
3142 #ifdef INET
3143                                 if (sa->sa_family == AF_INET) {
3144                                         struct sockaddr_in *sin;
3145
3146                                         sin = (struct sockaddr_in *)sa;
3147                                         if (sin->sin_addr.s_addr) {
3148                                                 error = EINVAL;
3149                                                 SCTP_TCB_UNLOCK(stcb);
3150                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3151                                                 break;
3152                                         }
3153                                 } else
3154 #endif
3155 #ifdef INET6
3156                                 if (sa->sa_family == AF_INET6) {
3157                                         struct sockaddr_in6 *sin6;
3158
3159                                         sin6 = (struct sockaddr_in6 *)sa;
3160                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3161                                                 error = EINVAL;
3162                                                 SCTP_TCB_UNLOCK(stcb);
3163                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3164                                                 break;
3165                                         }
3166                                 } else
3167 #endif
3168                                 {
3169                                         error = EAFNOSUPPORT;
3170                                         SCTP_TCB_UNLOCK(stcb);
3171                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3172                                         break;
3173                                 }
3174                         }
3175                         if (stcb) {
3176                                 if (net) {
3177                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3178                                         thlds->spt_pathpfthld = net->pf_threshold;
3179                                 } else {
3180                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3181                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3182                                 }
3183                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3184                                 SCTP_TCB_UNLOCK(stcb);
3185                         } else {
3186                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3187                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3188                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3189                                         /* Use endpoint defaults */
3190                                         SCTP_INP_RLOCK(inp);
3191                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3192                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3193                                         SCTP_INP_RUNLOCK(inp);
3194                                 } else {
3195                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3196                                         error = EINVAL;
3197                                 }
3198                         }
3199                         if (error == 0) {
3200                                 *optsize = sizeof(struct sctp_paddrthlds);
3201                         }
3202                         break;
3203                 }
3204         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3205                 {
3206                         struct sctp_udpencaps *encaps;
3207                         struct sctp_nets *net;
3208
3209                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3210                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3211
3212                         if (stcb) {
3213                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
3214                         } else {
3215                                 /*
3216                                  * We increment here since
3217                                  * sctp_findassociation_ep_addr() wil do a
3218                                  * decrement if it finds the stcb as long as
3219                                  * the locked tcb (last argument) is NOT a
3220                                  * TCB.. aka NULL.
3221                                  */
3222                                 net = NULL;
3223                                 SCTP_INP_INCR_REF(inp);
3224                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
3225                                 if (stcb == NULL) {
3226                                         SCTP_INP_DECR_REF(inp);
3227                                 }
3228                         }
3229                         if (stcb && (net == NULL)) {
3230                                 struct sockaddr *sa;
3231
3232                                 sa = (struct sockaddr *)&encaps->sue_address;
3233 #ifdef INET
3234                                 if (sa->sa_family == AF_INET) {
3235                                         struct sockaddr_in *sin;
3236
3237                                         sin = (struct sockaddr_in *)sa;
3238                                         if (sin->sin_addr.s_addr) {
3239                                                 error = EINVAL;
3240                                                 SCTP_TCB_UNLOCK(stcb);
3241                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3242                                                 break;
3243                                         }
3244                                 } else
3245 #endif
3246 #ifdef INET6
3247                                 if (sa->sa_family == AF_INET6) {
3248                                         struct sockaddr_in6 *sin6;
3249
3250                                         sin6 = (struct sockaddr_in6 *)sa;
3251                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
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                                 {
3260                                         error = EAFNOSUPPORT;
3261                                         SCTP_TCB_UNLOCK(stcb);
3262                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3263                                         break;
3264                                 }
3265                         }
3266                         if (stcb) {
3267                                 if (net) {
3268                                         encaps->sue_port = net->port;
3269                                 } else {
3270                                         encaps->sue_port = stcb->asoc.port;
3271                                 }
3272                                 SCTP_TCB_UNLOCK(stcb);
3273                         } else {
3274                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3275                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3276                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3277                                         SCTP_INP_RLOCK(inp);
3278                                         encaps->sue_port = inp->sctp_ep.port;
3279                                         SCTP_INP_RUNLOCK(inp);
3280                                 } else {
3281                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3282                                         error = EINVAL;
3283                                 }
3284                         }
3285                         if (error == 0) {
3286                                 *optsize = sizeof(struct sctp_paddrparams);
3287                         }
3288                         break;
3289                 }
3290         default:
3291                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3292                 error = ENOPROTOOPT;
3293                 break;
3294         }                       /* end switch (sopt->sopt_name) */
3295         if (error) {
3296                 *optsize = 0;
3297         }
3298         return (error);
3299 }
3300
3301 static int
3302 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3303     void *p)
3304 {
3305         int error, set_opt;
3306         uint32_t *mopt;
3307         struct sctp_tcb *stcb = NULL;
3308         struct sctp_inpcb *inp = NULL;
3309         uint32_t vrf_id;
3310
3311         if (optval == NULL) {
3312                 SCTP_PRINTF("optval is NULL\n");
3313                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3314                 return (EINVAL);
3315         }
3316         inp = (struct sctp_inpcb *)so->so_pcb;
3317         if (inp == NULL) {
3318                 SCTP_PRINTF("inp is NULL?\n");
3319                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3320                 return (EINVAL);
3321         }
3322         vrf_id = inp->def_vrf_id;
3323
3324         error = 0;
3325         switch (optname) {
3326         case SCTP_NODELAY:
3327         case SCTP_AUTOCLOSE:
3328         case SCTP_AUTO_ASCONF:
3329         case SCTP_EXPLICIT_EOR:
3330         case SCTP_DISABLE_FRAGMENTS:
3331         case SCTP_USE_EXT_RCVINFO:
3332         case SCTP_I_WANT_MAPPED_V4_ADDR:
3333                 /* copy in the option value */
3334                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3335                 set_opt = 0;
3336                 if (error)
3337                         break;
3338                 switch (optname) {
3339                 case SCTP_DISABLE_FRAGMENTS:
3340                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3341                         break;
3342                 case SCTP_AUTO_ASCONF:
3343                         /*
3344                          * NOTE: we don't really support this flag
3345                          */
3346                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3347                                 /* only valid for bound all sockets */
3348                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3349                                     (*mopt != 0)) {
3350                                         /* forbidden by admin */
3351                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3352                                         return (EPERM);
3353                                 }
3354                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3355                         } else {
3356                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3357                                 return (EINVAL);
3358                         }
3359                         break;
3360                 case SCTP_EXPLICIT_EOR:
3361                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3362                         break;
3363                 case SCTP_USE_EXT_RCVINFO:
3364                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3365                         break;
3366                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3367                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3368                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3369                         } else {
3370                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3371                                 return (EINVAL);
3372                         }
3373                         break;
3374                 case SCTP_NODELAY:
3375                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3376                         break;
3377                 case SCTP_AUTOCLOSE:
3378                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3379                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3380                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3381                                 return (EINVAL);
3382                         }
3383                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3384                         /*
3385                          * The value is in ticks. Note this does not effect
3386                          * old associations, only new ones.
3387                          */
3388                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3389                         break;
3390                 }
3391                 SCTP_INP_WLOCK(inp);
3392                 if (*mopt != 0) {
3393                         sctp_feature_on(inp, set_opt);
3394                 } else {
3395                         sctp_feature_off(inp, set_opt);
3396                 }
3397                 SCTP_INP_WUNLOCK(inp);
3398                 break;
3399         case SCTP_REUSE_PORT:
3400                 {
3401                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3402                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3403                                 /* Can't set it after we are bound */
3404                                 error = EINVAL;
3405                                 break;
3406                         }
3407                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3408                                 /* Can't do this for a 1-m socket */
3409                                 error = EINVAL;
3410                                 break;
3411                         }
3412                         if (optval)
3413                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3414                         else
3415                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3416                         break;
3417                 }
3418         case SCTP_PARTIAL_DELIVERY_POINT:
3419                 {
3420                         uint32_t *value;
3421
3422                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3423                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3424                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3425                                 error = EINVAL;
3426                                 break;
3427                         }
3428                         inp->partial_delivery_point = *value;
3429                         break;
3430                 }
3431         case SCTP_FRAGMENT_INTERLEAVE:
3432                 /* not yet until we re-write sctp_recvmsg() */
3433                 {
3434                         uint32_t *level;
3435
3436                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3437                         if (*level == SCTP_FRAG_LEVEL_2) {
3438                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3439                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3440                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3441                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3442                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3443                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3444                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3445                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3446
3447                         } else {
3448                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3449                                 error = EINVAL;
3450                         }
3451                         break;
3452                 }
3453         case SCTP_CMT_ON_OFF:
3454                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3455                         struct sctp_assoc_value *av;
3456
3457                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3458                         if (av->assoc_value > SCTP_CMT_MAX) {
3459                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3460                                 error = EINVAL;
3461                                 break;
3462                         }
3463                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3464                         if (stcb) {
3465                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3466                                 SCTP_TCB_UNLOCK(stcb);
3467                         } else {
3468                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3469                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3470                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3471                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3472                                         SCTP_INP_WLOCK(inp);
3473                                         inp->sctp_cmt_on_off = av->assoc_value;
3474                                         SCTP_INP_WUNLOCK(inp);
3475                                 }
3476                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3477                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3478                                         SCTP_INP_RLOCK(inp);
3479                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3480                                                 SCTP_TCB_LOCK(stcb);
3481                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3482                                                 SCTP_TCB_UNLOCK(stcb);
3483                                         }
3484                                         SCTP_INP_RUNLOCK(inp);
3485                                 }
3486                         }
3487                 } else {
3488                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3489                         error = ENOPROTOOPT;
3490                 }
3491                 break;
3492         case SCTP_PLUGGABLE_CC:
3493                 {
3494                         struct sctp_assoc_value *av;
3495                         struct sctp_nets *net;
3496
3497                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3498                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3499                             (av->assoc_value != SCTP_CC_HSTCP) &&
3500                             (av->assoc_value != SCTP_CC_HTCP) &&
3501                             (av->assoc_value != SCTP_CC_RTCC)) {
3502                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3503                                 error = EINVAL;
3504                                 break;
3505                         }
3506                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3507                         if (stcb) {
3508                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3509                                 stcb->asoc.congestion_control_module = av->assoc_value;
3510                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3511                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3512                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3513                                         }
3514                                 }
3515                                 SCTP_TCB_UNLOCK(stcb);
3516                         } else {
3517                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3518                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3519                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3520                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3521                                         SCTP_INP_WLOCK(inp);
3522                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3523                                         SCTP_INP_WUNLOCK(inp);
3524                                 }
3525                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3526                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3527                                         SCTP_INP_RLOCK(inp);
3528                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3529                                                 SCTP_TCB_LOCK(stcb);
3530                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3531                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3532                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3533                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3534                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3535                                                         }
3536                                                 }
3537                                                 SCTP_TCB_UNLOCK(stcb);
3538                                         }
3539                                         SCTP_INP_RUNLOCK(inp);
3540                                 }
3541                         }
3542                         break;
3543                 }
3544         case SCTP_CC_OPTION:
3545                 {
3546                         struct sctp_cc_option *cc_opt;
3547
3548                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3549                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3550                         if (stcb == NULL) {
3551                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3552                                         SCTP_INP_RLOCK(inp);
3553                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3554                                                 SCTP_TCB_LOCK(stcb);
3555                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3556                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3557                                                 }
3558                                                 SCTP_TCB_UNLOCK(stcb);
3559                                         }
3560                                         SCTP_INP_RUNLOCK(inp);
3561                                 } else {
3562                                         error = EINVAL;
3563                                 }
3564                         } else {
3565                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3566                                         error = ENOTSUP;
3567                                 } else {
3568                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3569                                             cc_opt);
3570                                 }
3571                                 SCTP_TCB_UNLOCK(stcb);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_PLUGGABLE_SS:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3580                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3581                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3582                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3583                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3584                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3585                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3586                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3587                                 error = EINVAL;
3588                                 break;
3589                         }
3590                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3591                         if (stcb) {
3592                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3593                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3594                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3595                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3596                                 SCTP_TCB_UNLOCK(stcb);
3597                         } else {
3598                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3599                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3600                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3601                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3602                                         SCTP_INP_WLOCK(inp);
3603                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3604                                         SCTP_INP_WUNLOCK(inp);
3605                                 }
3606                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3607                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3608                                         SCTP_INP_RLOCK(inp);
3609                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3610                                                 SCTP_TCB_LOCK(stcb);
3611                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3612                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3613                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3614                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3615                                                 SCTP_TCB_UNLOCK(stcb);
3616                                         }
3617                                         SCTP_INP_RUNLOCK(inp);
3618                                 }
3619                         }
3620                         break;
3621                 }
3622         case SCTP_SS_VALUE:
3623                 {
3624                         struct sctp_stream_value *av;
3625
3626                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3627                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3628                         if (stcb) {
3629                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3630                                     av->stream_value) < 0) {
3631                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3632                                         error = EINVAL;
3633                                 }
3634                                 SCTP_TCB_UNLOCK(stcb);
3635                         } else {
3636                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3637                                         SCTP_INP_RLOCK(inp);
3638                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3639                                                 SCTP_TCB_LOCK(stcb);
3640                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3641                                                     &stcb->asoc,
3642                                                     &stcb->asoc.strmout[av->stream_id],
3643                                                     av->stream_value);
3644                                                 SCTP_TCB_UNLOCK(stcb);
3645                                         }
3646                                         SCTP_INP_RUNLOCK(inp);
3647
3648                                 } else {
3649                                         /*
3650                                          * Can't set stream value without
3651                                          * association
3652                                          */
3653                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3654                                         error = EINVAL;
3655                                 }
3656                         }
3657                         break;
3658                 }
3659         case SCTP_CLR_STAT_LOG:
3660                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3661                 error = EOPNOTSUPP;
3662                 break;
3663         case SCTP_CONTEXT:
3664                 {
3665                         struct sctp_assoc_value *av;
3666
3667                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3668                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3669
3670                         if (stcb) {
3671                                 stcb->asoc.context = av->assoc_value;
3672                                 SCTP_TCB_UNLOCK(stcb);
3673                         } else {
3674                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3675                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3676                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3677                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3678                                         SCTP_INP_WLOCK(inp);
3679                                         inp->sctp_context = av->assoc_value;
3680                                         SCTP_INP_WUNLOCK(inp);
3681                                 }
3682                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3683                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3684                                         SCTP_INP_RLOCK(inp);
3685                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3686                                                 SCTP_TCB_LOCK(stcb);
3687                                                 stcb->asoc.context = av->assoc_value;
3688                                                 SCTP_TCB_UNLOCK(stcb);
3689                                         }
3690                                         SCTP_INP_RUNLOCK(inp);
3691                                 }
3692                         }
3693                         break;
3694                 }
3695         case SCTP_VRF_ID:
3696                 {
3697                         uint32_t *default_vrfid;
3698
3699                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3700                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3701                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3702                                 error = EINVAL;
3703                                 break;
3704                         }
3705                         inp->def_vrf_id = *default_vrfid;
3706                         break;
3707                 }
3708         case SCTP_DEL_VRF_ID:
3709                 {
3710                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3711                         error = EOPNOTSUPP;
3712                         break;
3713                 }
3714         case SCTP_ADD_VRF_ID:
3715                 {
3716                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3717                         error = EOPNOTSUPP;
3718                         break;
3719                 }
3720         case SCTP_DELAYED_SACK:
3721                 {
3722                         struct sctp_sack_info *sack;
3723
3724                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3725                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3726                         if (sack->sack_delay) {
3727                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3728                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3729                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3730                                         sack->sack_delay = TICKS_TO_MSEC(1);
3731                                 }
3732                         }
3733                         if (stcb) {
3734                                 if (sack->sack_delay) {
3735                                         stcb->asoc.delayed_ack = sack->sack_delay;
3736                                 }
3737                                 if (sack->sack_freq) {
3738                                         stcb->asoc.sack_freq = sack->sack_freq;
3739                                 }
3740                                 SCTP_TCB_UNLOCK(stcb);
3741                         } else {
3742                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3743                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3744                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3745                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3746                                         SCTP_INP_WLOCK(inp);
3747                                         if (sack->sack_delay) {
3748                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3749                                         }
3750                                         if (sack->sack_freq) {
3751                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3752                                         }
3753                                         SCTP_INP_WUNLOCK(inp);
3754                                 }
3755                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3756                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3757                                         SCTP_INP_RLOCK(inp);
3758                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3759                                                 SCTP_TCB_LOCK(stcb);
3760                                                 if (sack->sack_delay) {
3761                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3762                                                 }
3763                                                 if (sack->sack_freq) {
3764                                                         stcb->asoc.sack_freq = sack->sack_freq;
3765                                                 }
3766                                                 SCTP_TCB_UNLOCK(stcb);
3767                                         }
3768                                         SCTP_INP_RUNLOCK(inp);
3769                                 }
3770                         }
3771                         break;
3772                 }
3773         case SCTP_AUTH_CHUNK:
3774                 {
3775                         struct sctp_authchunk *sauth;
3776
3777                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3778
3779                         SCTP_INP_WLOCK(inp);
3780                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3781                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3782                                 error = EINVAL;
3783                         }
3784                         SCTP_INP_WUNLOCK(inp);
3785                         break;
3786                 }
3787         case SCTP_AUTH_KEY:
3788                 {
3789                         struct sctp_authkey *sca;
3790                         struct sctp_keyhead *shared_keys;
3791                         sctp_sharedkey_t *shared_key;
3792                         sctp_key_t *key = NULL;
3793                         size_t size;
3794
3795                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3796                         if (sca->sca_keylength == 0) {
3797                                 size = optsize - sizeof(struct sctp_authkey);
3798                         } else {
3799                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3800                                         size = sca->sca_keylength;
3801                                 } else {
3802                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3803                                         error = EINVAL;
3804                                         break;
3805                                 }
3806                         }
3807                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3808
3809                         if (stcb) {
3810                                 shared_keys = &stcb->asoc.shared_keys;
3811                                 /* clear the cached keys for this key id */
3812                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3813                                 /*
3814                                  * create the new shared key and
3815                                  * insert/replace it
3816                                  */
3817                                 if (size > 0) {
3818                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3819                                         if (key == NULL) {
3820                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3821                                                 error = ENOMEM;
3822                                                 SCTP_TCB_UNLOCK(stcb);
3823                                                 break;
3824                                         }
3825                                 }
3826                                 shared_key = sctp_alloc_sharedkey();
3827                                 if (shared_key == NULL) {
3828                                         sctp_free_key(key);
3829                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3830                                         error = ENOMEM;
3831                                         SCTP_TCB_UNLOCK(stcb);
3832                                         break;
3833                                 }
3834                                 shared_key->key = key;
3835                                 shared_key->keyid = sca->sca_keynumber;
3836                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3837                                 SCTP_TCB_UNLOCK(stcb);
3838                         } else {
3839                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3840                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3841                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3842                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3843                                         SCTP_INP_WLOCK(inp);
3844                                         shared_keys = &inp->sctp_ep.shared_keys;
3845                                         /*
3846                                          * clear the cached keys on all
3847                                          * assocs for this key id
3848                                          */
3849                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3850                                         /*
3851                                          * create the new shared key and
3852                                          * insert/replace it
3853                                          */
3854                                         if (size > 0) {
3855                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3856                                                 if (key == NULL) {
3857                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3858                                                         error = ENOMEM;
3859                                                         SCTP_INP_WUNLOCK(inp);
3860                                                         break;
3861                                                 }
3862                                         }
3863                                         shared_key = sctp_alloc_sharedkey();
3864                                         if (shared_key == NULL) {
3865                                                 sctp_free_key(key);
3866                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3867                                                 error = ENOMEM;
3868                                                 SCTP_INP_WUNLOCK(inp);
3869                                                 break;
3870                                         }
3871                                         shared_key->key = key;
3872                                         shared_key->keyid = sca->sca_keynumber;
3873                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3874                                         SCTP_INP_WUNLOCK(inp);
3875                                 }
3876                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3877                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3878                                         SCTP_INP_RLOCK(inp);
3879                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3880                                                 SCTP_TCB_LOCK(stcb);
3881                                                 shared_keys = &stcb->asoc.shared_keys;
3882                                                 /*
3883                                                  * clear the cached keys for
3884                                                  * this key id
3885                                                  */
3886                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3887                                                 /*
3888                                                  * create the new shared key
3889                                                  * and insert/replace it
3890                                                  */
3891                                                 if (size > 0) {
3892                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3893                                                         if (key == NULL) {
3894                                                                 SCTP_TCB_UNLOCK(stcb);
3895                                                                 continue;
3896                                                         }
3897                                                 }
3898                                                 shared_key = sctp_alloc_sharedkey();
3899                                                 if (shared_key == NULL) {
3900                                                         sctp_free_key(key);
3901                                                         SCTP_TCB_UNLOCK(stcb);
3902                                                         continue;
3903                                                 }
3904                                                 shared_key->key = key;
3905                                                 shared_key->keyid = sca->sca_keynumber;
3906                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3907                                                 SCTP_TCB_UNLOCK(stcb);
3908                                         }
3909                                         SCTP_INP_RUNLOCK(inp);
3910                                 }
3911                         }
3912                         break;
3913                 }
3914         case SCTP_HMAC_IDENT:
3915                 {
3916                         struct sctp_hmacalgo *shmac;
3917                         sctp_hmaclist_t *hmaclist;
3918                         uint16_t hmacid;
3919                         uint32_t i;
3920                         size_t found;
3921
3922                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3923                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3924                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3925                                 error = EINVAL;
3926                                 break;
3927                         }
3928                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3929                         if (hmaclist == NULL) {
3930                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3931                                 error = ENOMEM;
3932                                 break;
3933                         }
3934                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3935                                 hmacid = shmac->shmac_idents[i];
3936                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3937                                          /* invalid HMACs were found */ ;
3938                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3939                                         error = EINVAL;
3940                                         sctp_free_hmaclist(hmaclist);
3941                                         goto sctp_set_hmac_done;
3942                                 }
3943                         }
3944                         found = 0;
3945                         for (i = 0; i < hmaclist->num_algo; i++) {
3946                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3947                                         /* already in list */
3948                                         found = 1;
3949                                 }
3950                         }
3951                         if (!found) {
3952                                 sctp_free_hmaclist(hmaclist);
3953                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3954                                 error = EINVAL;
3955                                 break;
3956                         }
3957                         /* set it on the endpoint */
3958                         SCTP_INP_WLOCK(inp);
3959                         if (inp->sctp_ep.local_hmacs)
3960                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3961                         inp->sctp_ep.local_hmacs = hmaclist;
3962                         SCTP_INP_WUNLOCK(inp);
3963         sctp_set_hmac_done:
3964                         break;
3965                 }
3966         case SCTP_AUTH_ACTIVE_KEY:
3967                 {
3968                         struct sctp_authkeyid *scact;
3969
3970                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3971                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3972
3973                         /* set the active key on the right place */
3974                         if (stcb) {
3975                                 /* set the active key on the assoc */
3976                                 if (sctp_auth_setactivekey(stcb,
3977                                     scact->scact_keynumber)) {
3978                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3979                                             SCTP_FROM_SCTP_USRREQ,
3980                                             EINVAL);
3981                                         error = EINVAL;
3982                                 }
3983                                 SCTP_TCB_UNLOCK(stcb);
3984                         } else {
3985                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3986                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3987                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3988                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3989                                         SCTP_INP_WLOCK(inp);
3990                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
3991                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3992                                                 error = EINVAL;
3993                                         }
3994                                         SCTP_INP_WUNLOCK(inp);
3995                                 }
3996                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
3997                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3998                                         SCTP_INP_RLOCK(inp);
3999                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4000                                                 SCTP_TCB_LOCK(stcb);
4001                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4002                                                 SCTP_TCB_UNLOCK(stcb);
4003                                         }
4004                                         SCTP_INP_RUNLOCK(inp);
4005                                 }
4006                         }
4007                         break;
4008                 }
4009         case SCTP_AUTH_DELETE_KEY:
4010                 {
4011                         struct sctp_authkeyid *scdel;
4012
4013                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4014                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4015
4016                         /* delete the key from the right place */
4017                         if (stcb) {
4018                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4019                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4020                                         error = EINVAL;
4021                                 }
4022                                 SCTP_TCB_UNLOCK(stcb);
4023                         } else {
4024                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4025                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4026                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4027                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4028                                         SCTP_INP_WLOCK(inp);
4029                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4030                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4031                                                 error = EINVAL;
4032                                         }
4033                                         SCTP_INP_WUNLOCK(inp);
4034                                 }
4035                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4036                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4037                                         SCTP_INP_RLOCK(inp);
4038                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4039                                                 SCTP_TCB_LOCK(stcb);
4040                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4041                                                 SCTP_TCB_UNLOCK(stcb);
4042                                         }
4043                                         SCTP_INP_RUNLOCK(inp);
4044                                 }
4045                         }
4046                         break;
4047                 }
4048         case SCTP_AUTH_DEACTIVATE_KEY:
4049                 {
4050                         struct sctp_authkeyid *keyid;
4051
4052                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4053                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4054
4055                         /* deactivate the key from the right place */
4056                         if (stcb) {
4057                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4058                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4059                                         error = EINVAL;
4060                                 }
4061                                 SCTP_TCB_UNLOCK(stcb);
4062                         } else {
4063                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4064                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4065                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4066                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4067                                         SCTP_INP_WLOCK(inp);
4068                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4069                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4070                                                 error = EINVAL;
4071                                         }
4072                                         SCTP_INP_WUNLOCK(inp);
4073                                 }
4074                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4075                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4076                                         SCTP_INP_RLOCK(inp);
4077                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4078                                                 SCTP_TCB_LOCK(stcb);
4079                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4080                                                 SCTP_TCB_UNLOCK(stcb);
4081                                         }
4082                                         SCTP_INP_RUNLOCK(inp);
4083                                 }
4084                         }
4085                         break;
4086                 }
4087         case SCTP_ENABLE_STREAM_RESET:
4088                 {
4089                         struct sctp_assoc_value *av;
4090                         uint8_t set_value = 0;
4091
4092                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4093                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4094                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4095                                 error = EINVAL;
4096                                 break;
4097                         }
4098                         set_value = av->assoc_value & SCTP_ENABLE_VALUE_MASK;
4099                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4100                         if (stcb) {
4101                                 stcb->asoc.local_strreset_support = set_value;
4102                                 SCTP_TCB_UNLOCK(stcb);
4103                         } else {
4104                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4105                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4106                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4107                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4108                                         SCTP_INP_WLOCK(inp);
4109                                         inp->local_strreset_support = set_value;
4110                                         SCTP_INP_WUNLOCK(inp);
4111                                 }
4112                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4113                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4114                                         SCTP_INP_RLOCK(inp);
4115                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4116                                                 SCTP_TCB_LOCK(stcb);
4117                                                 stcb->asoc.local_strreset_support = set_value;
4118                                                 SCTP_TCB_UNLOCK(stcb);
4119                                         }
4120                                         SCTP_INP_RUNLOCK(inp);
4121                                 }
4122                         }
4123                         break;
4124                 }
4125         case SCTP_RESET_STREAMS:
4126                 {
4127                         struct sctp_reset_streams *strrst;
4128                         int i, send_out = 0;
4129                         int send_in = 0;
4130
4131                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4132                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4133
4134                         if (stcb == NULL) {
4135                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4136                                 error = ENOENT;
4137                                 break;
4138                         }
4139                         if (stcb->asoc.peer_supports_strreset == 0) {
4140                                 /*
4141                                  * Peer does not support the chunk type.
4142                                  */
4143                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4144                                 error = EOPNOTSUPP;
4145                                 SCTP_TCB_UNLOCK(stcb);
4146                                 break;
4147                         }
4148                         if (!(stcb->asoc.local_strreset_support & SCTP_ENABLE_RESET_STREAM_REQ)) {
4149                                 /*
4150                                  * User did not enable the operation.
4151                                  */
4152                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
4153                                 error = EPERM;
4154                                 SCTP_TCB_UNLOCK(stcb);
4155                                 break;
4156                         }
4157                         if (stcb->asoc.stream_reset_outstanding) {
4158                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4159                                 error = EALREADY;
4160                                 SCTP_TCB_UNLOCK(stcb);
4161                                 break;
4162                         }
4163                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4164                                 send_in = 1;
4165                         }
4166                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4167                                 send_out = 1;
4168                         }
4169                         if ((send_in == 0) && (send_out == 0)) {
4170                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4171                                 error = EINVAL;
4172                                 SCTP_TCB_UNLOCK(stcb);
4173                                 break;
4174                         }
4175                         for (i = 0; i < strrst->srs_number_streams; i++) {
4176                                 if ((send_in) &&
4177                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4178                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4179                                         error = EINVAL;
4180                                         break;
4181                                 }
4182                                 if ((send_out) &&
4183                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4184                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4185                                         error = EINVAL;
4186                                         break;
4187                                 }
4188                         }
4189                         if (error) {
4190                                 SCTP_TCB_UNLOCK(stcb);
4191                                 break;
4192                         }
4193                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4194                             strrst->srs_stream_list,
4195                             send_out, send_in, 0, 0, 0, 0, 0);
4196
4197                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4198                         SCTP_TCB_UNLOCK(stcb);
4199                         break;
4200                 }
4201         case SCTP_ADD_STREAMS:
4202                 {
4203                         struct sctp_add_streams *stradd;
4204                         uint8_t addstream = 0;
4205                         uint16_t add_o_strmcnt = 0;
4206                         uint16_t add_i_strmcnt = 0;
4207
4208                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4209                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4210                         if (stcb == NULL) {
4211                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4212                                 error = ENOENT;
4213                                 break;
4214                         }
4215                         if ((stradd->sas_outstrms == 0) &&
4216                             (stradd->sas_instrms == 0)) {
4217                                 error = EINVAL;
4218                                 goto skip_stuff;
4219                         }
4220                         if (stradd->sas_outstrms) {
4221                                 addstream = 1;
4222                                 /* We allocate here */
4223                                 add_o_strmcnt = stradd->sas_outstrms;
4224                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4225                                         /* You can't have more than 64k */
4226                                         error = EINVAL;
4227                                         goto skip_stuff;
4228                                 }
4229                         }
4230                         if (stradd->sas_instrms) {
4231                                 int cnt;
4232
4233                                 addstream |= 2;
4234                                 /*
4235                                  * We allocate inside
4236                                  * sctp_send_str_reset_req()
4237                                  */
4238                                 add_i_strmcnt = stradd->sas_instrms;
4239                                 cnt = add_i_strmcnt;
4240                                 cnt += stcb->asoc.streamincnt;
4241                                 if (cnt > 0x0000ffff) {
4242                                         /* You can't have more than 64k */
4243                                         error = EINVAL;
4244                                         goto skip_stuff;
4245                                 }
4246                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4247                                         /* More than you are allowed */
4248                                         error = EINVAL;
4249                                         goto skip_stuff;
4250                                 }
4251                         }
4252                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4253                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4254         skip_stuff:
4255                         SCTP_TCB_UNLOCK(stcb);
4256                         break;
4257                 }
4258         case SCTP_RESET_ASSOC:
4259                 {
4260                         uint32_t *value;
4261
4262                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4263                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4264                         if (stcb == NULL) {
4265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4266                                 error = ENOENT;
4267                                 break;
4268                         }
4269                         if (stcb->asoc.peer_supports_strreset == 0) {
4270                                 /*
4271                                  * Peer does not support the chunk type.
4272                                  */
4273                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4274                                 error = EOPNOTSUPP;
4275                                 SCTP_TCB_UNLOCK(stcb);
4276                                 break;
4277                         }
4278                         if (!(stcb->asoc.local_strreset_support & SCTP_ENABLE_RESET_ASSOC_REQ)) {
4279                                 /*
4280                                  * User did not enable the operation.
4281                                  */
4282                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
4283                                 error = EPERM;
4284                                 SCTP_TCB_UNLOCK(stcb);
4285                                 break;
4286                         }
4287                         if (stcb->asoc.stream_reset_outstanding) {
4288                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4289                                 error = EALREADY;
4290                                 SCTP_TCB_UNLOCK(stcb);
4291                                 break;
4292                         }
4293                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4294                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4295                         SCTP_TCB_UNLOCK(stcb);
4296                         break;
4297                 }
4298         case SCTP_CONNECT_X:
4299                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4300                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4301                         error = EINVAL;
4302                         break;
4303                 }
4304                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4305                 break;
4306         case SCTP_CONNECT_X_DELAYED:
4307                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4308                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4309                         error = EINVAL;
4310                         break;
4311                 }
4312                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4313                 break;
4314         case SCTP_CONNECT_X_COMPLETE:
4315                 {
4316                         struct sockaddr *sa;
4317                         struct sctp_nets *net;
4318
4319                         /* FIXME MT: check correct? */
4320                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4321
4322                         /* find tcb */
4323                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4324                                 SCTP_INP_RLOCK(inp);
4325                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4326                                 if (stcb) {
4327                                         SCTP_TCB_LOCK(stcb);
4328                                         net = sctp_findnet(stcb, sa);
4329                                 }
4330                                 SCTP_INP_RUNLOCK(inp);
4331                         } else {
4332                                 /*
4333                                  * We increment here since
4334                                  * sctp_findassociation_ep_addr() wil do a
4335                                  * decrement if it finds the stcb as long as
4336                                  * the locked tcb (last argument) is NOT a
4337                                  * TCB.. aka NULL.
4338                                  */
4339                                 SCTP_INP_INCR_REF(inp);
4340                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4341                                 if (stcb == NULL) {
4342                                         SCTP_INP_DECR_REF(inp);
4343                                 }
4344                         }
4345
4346                         if (stcb == NULL) {
4347                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4348                                 error = ENOENT;
4349                                 break;
4350                         }
4351                         if (stcb->asoc.delayed_connection == 1) {
4352                                 stcb->asoc.delayed_connection = 0;
4353                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4354                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4355                                     stcb->asoc.primary_destination,
4356                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4357                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4358                         } else {
4359                                 /*
4360                                  * already expired or did not use delayed
4361                                  * connectx
4362                                  */
4363                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4364                                 error = EALREADY;
4365                         }
4366                         SCTP_TCB_UNLOCK(stcb);
4367                         break;
4368                 }
4369         case SCTP_MAX_BURST:
4370                 {
4371                         struct sctp_assoc_value *av;
4372
4373                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4374                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4375
4376                         if (stcb) {
4377                                 stcb->asoc.max_burst = av->assoc_value;
4378                                 SCTP_TCB_UNLOCK(stcb);
4379                         } else {
4380                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4381                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4382                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4383                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4384                                         SCTP_INP_WLOCK(inp);
4385                                         inp->sctp_ep.max_burst = av->assoc_value;
4386                                         SCTP_INP_WUNLOCK(inp);
4387                                 }
4388                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4389                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4390                                         SCTP_INP_RLOCK(inp);
4391                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4392                                                 SCTP_TCB_LOCK(stcb);
4393                                                 stcb->asoc.max_burst = av->assoc_value;
4394                                                 SCTP_TCB_UNLOCK(stcb);
4395                                         }
4396                                         SCTP_INP_RUNLOCK(inp);
4397                                 }
4398                         }
4399                         break;
4400                 }
4401         case SCTP_MAXSEG:
4402                 {
4403                         struct sctp_assoc_value *av;
4404                         int ovh;
4405
4406                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4407                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4408
4409                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4410                                 ovh = SCTP_MED_OVERHEAD;
4411                         } else {
4412                                 ovh = SCTP_MED_V4_OVERHEAD;
4413                         }
4414                         if (stcb) {
4415                                 if (av->assoc_value) {
4416                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4417                                 } else {
4418                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4419                                 }
4420                                 SCTP_TCB_UNLOCK(stcb);
4421                         } else {
4422                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4423                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4424                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4425                                         SCTP_INP_WLOCK(inp);
4426                                         /*
4427                                          * FIXME MT: I think this is not in
4428                                          * tune with the API ID
4429                                          */
4430                                         if (av->assoc_value) {
4431                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4432                                         } else {
4433                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4434                                         }
4435                                         SCTP_INP_WUNLOCK(inp);
4436                                 } else {
4437                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4438                                         error = EINVAL;
4439                                 }
4440                         }
4441                         break;
4442                 }
4443         case SCTP_EVENTS:
4444                 {
4445                         struct sctp_event_subscribe *events;
4446
4447                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4448
4449                         SCTP_INP_WLOCK(inp);
4450                         if (events->sctp_data_io_event) {
4451                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4452                         } else {
4453                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4454                         }
4455
4456                         if (events->sctp_association_event) {
4457                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4458                         } else {
4459                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4460                         }
4461
4462                         if (events->sctp_address_event) {
4463                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4464                         } else {
4465                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4466                         }
4467
4468                         if (events->sctp_send_failure_event) {
4469                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4470                         } else {
4471                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4472                         }
4473
4474                         if (events->sctp_peer_error_event) {
4475                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4476                         } else {
4477                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4478                         }
4479
4480                         if (events->sctp_shutdown_event) {
4481                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4482                         } else {
4483                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4484                         }
4485
4486                         if (events->sctp_partial_delivery_event) {
4487                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4488                         } else {
4489                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4490                         }
4491
4492                         if (events->sctp_adaptation_layer_event) {
4493                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4494                         } else {
4495                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4496                         }
4497
4498                         if (events->sctp_authentication_event) {
4499                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4500                         } else {
4501                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4502                         }
4503
4504                         if (events->sctp_sender_dry_event) {
4505                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4506                         } else {
4507                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4508                         }
4509
4510                         if (events->sctp_stream_reset_event) {
4511                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4512                         } else {
4513                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4514                         }
4515                         SCTP_INP_WUNLOCK(inp);
4516
4517                         SCTP_INP_RLOCK(inp);
4518                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4519                                 SCTP_TCB_LOCK(stcb);
4520                                 if (events->sctp_association_event) {
4521                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4522                                 } else {
4523                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4524                                 }
4525                                 if (events->sctp_address_event) {
4526                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4527                                 } else {
4528                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4529                                 }
4530                                 if (events->sctp_send_failure_event) {
4531                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4532                                 } else {
4533                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4534                                 }
4535                                 if (events->sctp_peer_error_event) {
4536                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4537                                 } else {
4538                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4539                                 }
4540                                 if (events->sctp_shutdown_event) {
4541                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4542                                 } else {
4543                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4544                                 }
4545                                 if (events->sctp_partial_delivery_event) {
4546                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4547                                 } else {
4548                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4549                                 }
4550                                 if (events->sctp_adaptation_layer_event) {
4551                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4552                                 } else {
4553                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4554                                 }
4555                                 if (events->sctp_authentication_event) {
4556                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4557                                 } else {
4558                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4559                                 }
4560                                 if (events->sctp_sender_dry_event) {
4561                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4562                                 } else {
4563                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4564                                 }
4565                                 if (events->sctp_stream_reset_event) {
4566                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4567                                 } else {
4568                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4569                                 }
4570                                 SCTP_TCB_UNLOCK(stcb);
4571                         }
4572                         /*
4573                          * Send up the sender dry event only for 1-to-1
4574                          * style sockets.
4575                          */
4576                         if (events->sctp_sender_dry_event) {
4577                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4578                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4579                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4580                                         if (stcb) {
4581                                                 SCTP_TCB_LOCK(stcb);
4582                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4583                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4584                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4585                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4586                                                 }
4587                                                 SCTP_TCB_UNLOCK(stcb);
4588                                         }
4589                                 }
4590                         }
4591                         SCTP_INP_RUNLOCK(inp);
4592                         break;
4593                 }
4594         case SCTP_ADAPTATION_LAYER:
4595                 {
4596                         struct sctp_setadaptation *adap_bits;
4597
4598                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4599                         SCTP_INP_WLOCK(inp);
4600                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4601                         SCTP_INP_WUNLOCK(inp);
4602                         break;
4603                 }
4604 #ifdef SCTP_DEBUG
4605         case SCTP_SET_INITIAL_DBG_SEQ:
4606                 {
4607                         uint32_t *vvv;
4608
4609                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4610                         SCTP_INP_WLOCK(inp);
4611                         inp->sctp_ep.initial_sequence_debug = *vvv;
4612                         SCTP_INP_WUNLOCK(inp);
4613                         break;
4614                 }
4615 #endif
4616         case SCTP_DEFAULT_SEND_PARAM:
4617                 {
4618                         struct sctp_sndrcvinfo *s_info;
4619
4620                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4621                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4622
4623                         if (stcb) {
4624                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4625                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4626                                 } else {
4627                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4628                                         error = EINVAL;
4629                                 }
4630                                 SCTP_TCB_UNLOCK(stcb);
4631                         } else {
4632                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4633                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4634                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4635                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4636                                         SCTP_INP_WLOCK(inp);
4637                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4638                                         SCTP_INP_WUNLOCK(inp);
4639                                 }
4640                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4641                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4642                                         SCTP_INP_RLOCK(inp);
4643                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4644                                                 SCTP_TCB_LOCK(stcb);
4645                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4646                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4647                                                 }
4648                                                 SCTP_TCB_UNLOCK(stcb);
4649                                         }
4650                                         SCTP_INP_RUNLOCK(inp);
4651                                 }
4652                         }
4653                         break;
4654                 }
4655         case SCTP_PEER_ADDR_PARAMS:
4656                 {
4657                         struct sctp_paddrparams *paddrp;
4658                         struct sctp_nets *net;
4659
4660                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4661                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4662                         net = NULL;
4663                         if (stcb) {
4664                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4665                         } else {
4666                                 /*
4667                                  * We increment here since
4668                                  * sctp_findassociation_ep_addr() wil do a
4669                                  * decrement if it finds the stcb as long as
4670                                  * the locked tcb (last argument) is NOT a
4671                                  * TCB.. aka NULL.
4672                                  */
4673                                 SCTP_INP_INCR_REF(inp);
4674                                 stcb = sctp_findassociation_ep_addr(&inp,
4675                                     (struct sockaddr *)&paddrp->spp_address,
4676                                     &net, NULL, NULL);
4677                                 if (stcb == NULL) {
4678                                         SCTP_INP_DECR_REF(inp);
4679                                 }
4680                         }
4681                         if (stcb && (net == NULL)) {
4682                                 struct sockaddr *sa;
4683
4684                                 sa = (struct sockaddr *)&paddrp->spp_address;
4685 #ifdef INET
4686                                 if (sa->sa_family == AF_INET) {
4687
4688                                         struct sockaddr_in *sin;
4689
4690                                         sin = (struct sockaddr_in *)sa;
4691                                         if (sin->sin_addr.s_addr) {
4692                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4693                                                 SCTP_TCB_UNLOCK(stcb);
4694                                                 error = EINVAL;
4695                                                 break;
4696                                         }
4697                                 } else
4698 #endif
4699 #ifdef INET6
4700                                 if (sa->sa_family == AF_INET6) {
4701                                         struct sockaddr_in6 *sin6;
4702
4703                                         sin6 = (struct sockaddr_in6 *)sa;
4704                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4705                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4706                                                 SCTP_TCB_UNLOCK(stcb);
4707                                                 error = EINVAL;
4708                                                 break;
4709                                         }
4710                                 } else
4711 #endif
4712                                 {
4713                                         error = EAFNOSUPPORT;
4714                                         SCTP_TCB_UNLOCK(stcb);
4715                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4716                                         break;
4717                                 }
4718                         }
4719                         /* sanity checks */
4720                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4721                                 if (stcb)
4722                                         SCTP_TCB_UNLOCK(stcb);
4723                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4724                                 return (EINVAL);
4725                         }
4726                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4727                                 if (stcb)
4728                                         SCTP_TCB_UNLOCK(stcb);
4729                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4730                                 return (EINVAL);
4731                         }
4732                         if (stcb) {
4733                                 /************************TCB SPECIFIC SET ******************/
4734                                 /*
4735                                  * do we change the timer for HB, we run
4736                                  * only one?
4737                                  */
4738                                 int ovh = 0;
4739
4740                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4741                                         ovh = SCTP_MED_OVERHEAD;
4742                                 } else {
4743                                         ovh = SCTP_MED_V4_OVERHEAD;
4744                                 }
4745
4746                                 /* network sets ? */
4747                                 if (net) {
4748                                         /************************NET SPECIFIC SET ******************/
4749                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4750                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4751                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4752                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4753                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4754                                                 }
4755                                                 net->dest_state |= SCTP_ADDR_NOHB;
4756                                         }
4757                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4758                                                 if (paddrp->spp_hbinterval) {
4759                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4760                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4761                                                         net->heart_beat_delay = 0;
4762                                                 }
4763                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4764                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4765                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4766                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4767                                         }
4768                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4769                                                 /* on demand HB */
4770                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4771                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
4772                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4773                                         }
4774                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4775                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4776                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4777                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4778                                                 }
4779                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
4780                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4781                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4782                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4783                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
4784                                                         }
4785                                                 }
4786                                         }
4787                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4788                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4789                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4790                                                 }
4791                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4792                                         }
4793                                         if (paddrp->spp_pathmaxrxt) {
4794                                                 if (net->dest_state & SCTP_ADDR_PF) {
4795                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4796                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4797                                                         }
4798                                                 } else {
4799                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4800                                                             (net->error_count > net->pf_threshold)) {
4801                                                                 net->dest_state |= SCTP_ADDR_PF;
4802                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4803                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4804                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4805                                                         }
4806                                                 }
4807                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4808                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4809                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4810                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4811                                                         }
4812                                                 } else {
4813                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4814                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4815                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4816                                                         }
4817                                                 }
4818                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4819                                         }
4820                                         if (paddrp->spp_flags & SPP_DSCP) {
4821                                                 net->dscp = paddrp->spp_dscp & 0xfc;
4822                                                 net->dscp |= 0x01;
4823                                         }
4824 #ifdef INET6
4825                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4826                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4827                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4828                                                         net->flowlabel |= 0x80000000;
4829                                                 }
4830                                         }
4831 #endif
4832                                 } else {
4833                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4834                                         if (paddrp->spp_pathmaxrxt) {
4835                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4836                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4837                                                         if (net->dest_state & SCTP_ADDR_PF) {
4838                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4839                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4840                                                                 }
4841                                                         } else {
4842                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4843                                                                     (net->error_count > net->pf_threshold)) {
4844                                                                         net->dest_state |= SCTP_ADDR_PF;
4845                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4846                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4847                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4848                                                                 }
4849                                                         }
4850                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4851                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4852                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4853                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4854                                                                 }
4855                                                         } else {
4856                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4857                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4858                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4859                                                                 }
4860                                                         }
4861                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4862                                                 }
4863                                         }
4864                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4865                                                 if (paddrp->spp_hbinterval) {
4866                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4867                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4868                                                         stcb->asoc.heart_beat_delay = 0;
4869                                                 }
4870                                                 /* Turn back on the timer */
4871                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4872                                                         if (paddrp->spp_hbinterval) {
4873                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4874                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4875                                                                 net->heart_beat_delay = 0;
4876                                                         }
4877                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4878                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4879                                                         }
4880                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4881                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4882                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4883                                                 }
4884                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4885                                         }
4886                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4887                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4888                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4889                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4890                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4891                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4892                                                                 }
4893                                                         }
4894                                                 }
4895                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4896                                         }
4897                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4898                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4899                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4900                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4901                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4902                                                         }
4903                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
4904                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4905                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4906                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4907                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
4908                                                                 }
4909                                                         }
4910                                                 }
4911                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4912                                         }
4913                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4914                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4915                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4916                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4917                                                         }
4918                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4919                                                 }
4920                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4921                                         }
4922                                         if (paddrp->spp_flags & SPP_DSCP) {
4923                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4924                                                         net->dscp = paddrp->spp_dscp & 0xfc;
4925                                                         net->dscp |= 0x01;
4926                                                 }
4927                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
4928                                                 stcb->asoc.default_dscp |= 0x01;
4929                                         }
4930 #ifdef INET6
4931                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4932                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4933                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4934                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4935                                                                 net->flowlabel |= 0x80000000;
4936                                                         }
4937                                                 }
4938                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4939                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4940                                         }
4941 #endif
4942                                 }
4943                                 SCTP_TCB_UNLOCK(stcb);
4944                         } else {
4945                                 /************************NO TCB, SET TO default stuff ******************/
4946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4948                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4949                                         SCTP_INP_WLOCK(inp);
4950                                         /*
4951                                          * For the TOS/FLOWLABEL stuff you
4952                                          * set it with the options on the
4953                                          * socket
4954                                          */
4955                                         if (paddrp->spp_pathmaxrxt) {
4956                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
4957                                         }
4958                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
4959                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4960                                         else if (paddrp->spp_hbinterval) {
4961                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
4962                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
4963                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4964                                         }
4965                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4966                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4967                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4968                                                 } else if (paddrp->spp_hbinterval) {
4969                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4970                                                 }
4971                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4972                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
4973                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4974                                         }
4975                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4976                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4977                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
4978                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4979                                         }
4980                                         if (paddrp->spp_flags & SPP_DSCP) {
4981                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
4982                                                 inp->sctp_ep.default_dscp |= 0x01;
4983                                         }
4984 #ifdef INET6
4985                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4986                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4987                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4988                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
4989                                                 }
4990                                         }
4991 #endif
4992                                         SCTP_INP_WUNLOCK(inp);
4993                                 } else {
4994                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4995                                         error = EINVAL;
4996                                 }
4997                         }
4998                         break;
4999                 }
5000         case SCTP_RTOINFO:
5001                 {
5002                         struct sctp_rtoinfo *srto;
5003                         uint32_t new_init, new_min, new_max;
5004
5005                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5006                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5007
5008                         if (stcb) {
5009                                 if (srto->srto_initial)
5010                                         new_init = srto->srto_initial;
5011                                 else
5012                                         new_init = stcb->asoc.initial_rto;
5013                                 if (srto->srto_max)
5014                                         new_max = srto->srto_max;
5015                                 else
5016                                         new_max = stcb->asoc.maxrto;
5017                                 if (srto->srto_min)
5018                                         new_min = srto->srto_min;
5019                                 else
5020                                         new_min = stcb->asoc.minrto;
5021                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5022                                         stcb->asoc.initial_rto = new_init;
5023                                         stcb->asoc.maxrto = new_max;
5024                                         stcb->asoc.minrto = new_min;
5025                                 } else {
5026                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5027                                         error = EINVAL;
5028                                 }
5029                                 SCTP_TCB_UNLOCK(stcb);
5030                         } else {
5031                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5032                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5033                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5034                                         SCTP_INP_WLOCK(inp);
5035                                         if (srto->srto_initial)
5036                                                 new_init = srto->srto_initial;
5037                                         else
5038                                                 new_init = inp->sctp_ep.initial_rto;
5039                                         if (srto->srto_max)
5040                                                 new_max = srto->srto_max;
5041                                         else
5042                                                 new_max = inp->sctp_ep.sctp_maxrto;
5043                                         if (srto->srto_min)
5044                                                 new_min = srto->srto_min;
5045                                         else
5046                                                 new_min = inp->sctp_ep.sctp_minrto;
5047                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5048                                                 inp->sctp_ep.initial_rto = new_init;
5049                                                 inp->sctp_ep.sctp_maxrto = new_max;
5050                                                 inp->sctp_ep.sctp_minrto = new_min;
5051                                         } else {
5052                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5053                                                 error = EINVAL;
5054                                         }
5055                                         SCTP_INP_WUNLOCK(inp);
5056                                 } else {
5057                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5058                                         error = EINVAL;
5059                                 }
5060                         }
5061                         break;
5062                 }
5063         case SCTP_ASSOCINFO:
5064                 {
5065                         struct sctp_assocparams *sasoc;
5066
5067                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5068                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5069                         if (sasoc->sasoc_cookie_life) {
5070                                 /* boundary check the cookie life */
5071                                 if (sasoc->sasoc_cookie_life < 1000)
5072                                         sasoc->sasoc_cookie_life = 1000;
5073                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5074                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5075                                 }
5076                         }
5077                         if (stcb) {
5078                                 if (sasoc->sasoc_asocmaxrxt)
5079                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5080                                 if (sasoc->sasoc_cookie_life) {
5081                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5082                                 }
5083                                 SCTP_TCB_UNLOCK(stcb);
5084                         } else {
5085                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5086                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5087                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5088                                         SCTP_INP_WLOCK(inp);
5089                                         if (sasoc->sasoc_asocmaxrxt)
5090                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5091                                         if (sasoc->sasoc_cookie_life) {
5092                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5093                                         }
5094                                         SCTP_INP_WUNLOCK(inp);
5095                                 } else {
5096                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5097                                         error = EINVAL;
5098                                 }
5099                         }
5100                         break;
5101                 }
5102         case SCTP_INITMSG:
5103                 {
5104                         struct sctp_initmsg *sinit;
5105
5106                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5107                         SCTP_INP_WLOCK(inp);
5108                         if (sinit->sinit_num_ostreams)
5109                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5110
5111                         if (sinit->sinit_max_instreams)
5112                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5113
5114                         if (sinit->sinit_max_attempts)
5115                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5116
5117                         if (sinit->sinit_max_init_timeo)
5118                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5119                         SCTP_INP_WUNLOCK(inp);
5120                         break;
5121                 }
5122         case SCTP_PRIMARY_ADDR:
5123                 {
5124                         struct sctp_setprim *spa;
5125                         struct sctp_nets *net;
5126
5127                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5128                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5129
5130                         net = NULL;
5131                         if (stcb) {
5132                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
5133                         } else {
5134                                 /*
5135                                  * We increment here since
5136                                  * sctp_findassociation_ep_addr() wil do a
5137                                  * decrement if it finds the stcb as long as
5138                                  * the locked tcb (last argument) is NOT a
5139                                  * TCB.. aka NULL.
5140                                  */
5141                                 SCTP_INP_INCR_REF(inp);
5142                                 stcb = sctp_findassociation_ep_addr(&inp,
5143                                     (struct sockaddr *)&spa->ssp_addr,
5144                                     &net, NULL, NULL);
5145                                 if (stcb == NULL) {
5146                                         SCTP_INP_DECR_REF(inp);
5147                                 }
5148                         }
5149
5150                         if ((stcb) && (net)) {
5151                                 if ((net != stcb->asoc.primary_destination) &&
5152                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5153                                         /* Ok we need to set it */
5154                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5155                                                 if ((stcb->asoc.alternate) &&
5156                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5157                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5158                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5159                                                         stcb->asoc.alternate = NULL;
5160                                                 }
5161                                         }
5162                                 }
5163                         } else {
5164                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5165                                 error = EINVAL;
5166                         }
5167                         if (stcb) {
5168                                 SCTP_TCB_UNLOCK(stcb);
5169                         }
5170                         break;
5171                 }
5172         case SCTP_SET_DYNAMIC_PRIMARY:
5173                 {
5174                         union sctp_sockstore *ss;
5175
5176                         error = priv_check(curthread,
5177                             PRIV_NETINET_RESERVEDPORT);
5178                         if (error)
5179                                 break;
5180
5181                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5182                         /* SUPER USER CHECK? */
5183                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5184                         break;
5185                 }
5186         case SCTP_SET_PEER_PRIMARY_ADDR:
5187                 {
5188                         struct sctp_setpeerprim *sspp;
5189
5190                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5191                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5192                         if (stcb != NULL) {
5193                                 struct sctp_ifa *ifa;
5194
5195                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5196                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5197                                 if (ifa == NULL) {
5198                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5199                                         error = EINVAL;
5200                                         goto out_of_it;
5201                                 }
5202                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5203                                         /*
5204                                          * Must validate the ifa found is in
5205                                          * our ep
5206                                          */
5207                                         struct sctp_laddr *laddr;
5208                                         int found = 0;
5209
5210                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5211                                                 if (laddr->ifa == NULL) {
5212                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5213                                                             __FUNCTION__);
5214                                                         continue;
5215                                                 }
5216                                                 if (laddr->ifa == ifa) {
5217                                                         found = 1;
5218                                                         break;
5219                                                 }
5220                                         }
5221                                         if (!found) {
5222                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5223                                                 error = EINVAL;
5224                                                 goto out_of_it;
5225                                         }
5226                                 }
5227                                 if (sctp_set_primary_ip_address_sa(stcb,
5228                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5229                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5230                                         error = EINVAL;
5231                                 }
5232                 out_of_it:
5233                                 SCTP_TCB_UNLOCK(stcb);
5234                         } else {
5235                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5236                                 error = EINVAL;
5237                         }
5238                         break;
5239                 }
5240         case SCTP_BINDX_ADD_ADDR:
5241                 {
5242                         struct sctp_getaddresses *addrs;
5243                         size_t sz;
5244                         struct thread *td;
5245
5246                         td = (struct thread *)p;
5247                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5248                             optsize);
5249 #ifdef INET
5250                         if (addrs->addr->sa_family == AF_INET) {
5251                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5252                                 if (optsize < sz) {
5253                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5254                                         error = EINVAL;
5255                                         break;
5256                                 }
5257                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5258                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5259                                         break;
5260                                 }
5261                         } else
5262 #endif
5263 #ifdef INET6
5264                         if (addrs->addr->sa_family == AF_INET6) {
5265                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5266                                 if (optsize < sz) {
5267                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5268                                         error = EINVAL;
5269                                         break;
5270                                 }
5271                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5272                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5273                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5274                                         break;
5275                                 }
5276                         } else
5277 #endif
5278                         {
5279                                 error = EAFNOSUPPORT;
5280                                 break;
5281                         }
5282                         sctp_bindx_add_address(so, inp, addrs->addr,
5283                             addrs->sget_assoc_id, vrf_id,
5284                             &error, p);
5285                         break;
5286                 }
5287         case SCTP_BINDX_REM_ADDR:
5288                 {
5289                         struct sctp_getaddresses *addrs;
5290                         size_t sz;
5291                         struct thread *td;
5292
5293                         td = (struct thread *)p;
5294
5295                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5296 #ifdef INET
5297                         if (addrs->addr->sa_family == AF_INET) {
5298                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5299                                 if (optsize < sz) {
5300                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5301                                         error = EINVAL;
5302                                         break;
5303                                 }
5304                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5305                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5306                                         break;
5307                                 }
5308                         } else
5309 #endif
5310 #ifdef INET6
5311                         if (addrs->addr->sa_family == AF_INET6) {
5312                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5313                                 if (optsize < sz) {
5314                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5315                                         error = EINVAL;
5316                                         break;
5317                                 }
5318                                 if (td != NULL &&
5319                                     (error = prison_local_ip6(td->td_ucred,
5320                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5321                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5322                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5323                                         break;
5324                                 }
5325                         } else
5326 #endif
5327                         {
5328                                 error = EAFNOSUPPORT;
5329                                 break;
5330                         }
5331                         sctp_bindx_delete_address(inp, addrs->addr,
5332                             addrs->sget_assoc_id, vrf_id,
5333                             &error);
5334                         break;
5335                 }
5336         case SCTP_EVENT:
5337                 {
5338                         struct sctp_event *event;
5339                         uint32_t event_type;
5340
5341                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5342                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5343                         switch (event->se_type) {
5344                         case SCTP_ASSOC_CHANGE:
5345                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5346                                 break;
5347                         case SCTP_PEER_ADDR_CHANGE:
5348                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5349                                 break;
5350                         case SCTP_REMOTE_ERROR:
5351                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5352                                 break;
5353                         case SCTP_SEND_FAILED:
5354                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5355                                 break;
5356                         case SCTP_SHUTDOWN_EVENT:
5357                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5358                                 break;
5359                         case SCTP_ADAPTATION_INDICATION:
5360                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5361                                 break;
5362                         case SCTP_PARTIAL_DELIVERY_EVENT:
5363                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5364                                 break;
5365                         case SCTP_AUTHENTICATION_EVENT:
5366                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5367                                 break;
5368                         case SCTP_STREAM_RESET_EVENT:
5369                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5370                                 break;
5371                         case SCTP_SENDER_DRY_EVENT:
5372                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5373                                 break;
5374                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5375                                 event_type = 0;
5376                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5377                                 error = ENOTSUP;
5378                                 break;
5379                         default:
5380                                 event_type = 0;
5381                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5382                                 error = EINVAL;
5383                                 break;
5384                         }
5385                         if (event_type > 0) {
5386                                 if (stcb) {
5387                                         if (event->se_on) {
5388                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5389                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5390                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5391                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5392                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5393                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5394                                                         }
5395                                                 }
5396                                         } else {
5397                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5398                                         }
5399                                         SCTP_TCB_UNLOCK(stcb);
5400                                 } else {
5401                                         /*
5402                                          * We don't want to send up a storm
5403                                          * of events, so return an error for
5404                                          * sender dry events
5405                                          */
5406                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5407                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5408                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5409                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5410                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5411                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5412                                                 error = ENOTSUP;
5413                                                 break;
5414                                         }
5415                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5416                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5417                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5418                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5419                                                 SCTP_INP_WLOCK(inp);
5420                                                 if (event->se_on) {
5421                                                         sctp_feature_on(inp, event_type);
5422                                                 } else {
5423                                                         sctp_feature_off(inp, event_type);
5424                                                 }
5425                                                 SCTP_INP_WUNLOCK(inp);
5426                                         }
5427                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5428                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5429                                                 SCTP_INP_RLOCK(inp);
5430                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5431                                                         SCTP_TCB_LOCK(stcb);
5432                                                         if (event->se_on) {
5433                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5434                                                         } else {
5435                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5436                                                         }
5437                                                         SCTP_TCB_UNLOCK(stcb);
5438                                                 }
5439                                                 SCTP_INP_RUNLOCK(inp);
5440                                         }
5441                                 }
5442                         }
5443                         break;
5444                 }
5445         case SCTP_RECVRCVINFO:
5446                 {
5447                         int *onoff;
5448
5449                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5450                         SCTP_INP_WLOCK(inp);
5451                         if (*onoff != 0) {
5452                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5453                         } else {
5454                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5455                         }
5456                         SCTP_INP_WUNLOCK(inp);
5457                         break;
5458                 }
5459         case SCTP_RECVNXTINFO:
5460                 {
5461                         int *onoff;
5462
5463                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5464                         SCTP_INP_WLOCK(inp);
5465                         if (*onoff != 0) {
5466                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5467                         } else {
5468                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5469                         }
5470                         SCTP_INP_WUNLOCK(inp);
5471                         break;
5472                 }
5473         case SCTP_DEFAULT_SNDINFO:
5474                 {
5475                         struct sctp_sndinfo *info;
5476                         uint16_t policy;
5477
5478                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5479                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5480
5481                         if (stcb) {
5482                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5483                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5484                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5485                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5486                                         stcb->asoc.def_send.sinfo_flags |= policy;
5487                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5488                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5489                                 } else {
5490                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5491                                         error = EINVAL;
5492                                 }
5493                                 SCTP_TCB_UNLOCK(stcb);
5494                         } else {
5495                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5496                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5497                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5498                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5499                                         SCTP_INP_WLOCK(inp);
5500                                         inp->def_send.sinfo_stream = info->snd_sid;
5501                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5502                                         inp->def_send.sinfo_flags = info->snd_flags;
5503                                         inp->def_send.sinfo_flags |= policy;
5504                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5505                                         inp->def_send.sinfo_context = info->snd_context;
5506                                         SCTP_INP_WUNLOCK(inp);
5507                                 }
5508                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5509                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5510                                         SCTP_INP_RLOCK(inp);
5511                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5512                                                 SCTP_TCB_LOCK(stcb);
5513                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5514                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5515                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5516                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5517                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5518                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5519                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5520                                                 }
5521                                                 SCTP_TCB_UNLOCK(stcb);
5522                                         }
5523                                         SCTP_INP_RUNLOCK(inp);
5524                                 }
5525                         }
5526                         break;
5527                 }
5528         case SCTP_DEFAULT_PRINFO:
5529                 {
5530                         struct sctp_default_prinfo *info;
5531
5532                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5533                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5534
5535                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5536                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5537                                 error = EINVAL;
5538                                 break;
5539                         }
5540                         if (stcb) {
5541                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5542                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5543                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5544                                 SCTP_TCB_UNLOCK(stcb);
5545                         } else {
5546                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5547                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5548                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5549                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5550                                         SCTP_INP_WLOCK(inp);
5551                                         inp->def_send.sinfo_flags &= 0xfff0;
5552                                         inp->def_send.sinfo_flags |= info->pr_policy;
5553                                         inp->def_send.sinfo_timetolive = info->pr_value;
5554                                         SCTP_INP_WUNLOCK(inp);
5555                                 }
5556                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5557                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5558                                         SCTP_INP_RLOCK(inp);
5559                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5560                                                 SCTP_TCB_LOCK(stcb);
5561                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5562                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5563                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5564                                                 SCTP_TCB_UNLOCK(stcb);
5565                                         }
5566                                         SCTP_INP_RUNLOCK(inp);
5567                                 }
5568                         }
5569                         break;
5570                 }
5571         case SCTP_PEER_ADDR_THLDS:
5572                 /* Applies to the specific association */
5573                 {
5574                         struct sctp_paddrthlds *thlds;
5575                         struct sctp_nets *net;
5576
5577                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5578                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5579                         net = NULL;
5580                         if (stcb) {
5581                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5582                         } else {
5583                                 /*
5584                                  * We increment here since
5585                                  * sctp_findassociation_ep_addr() wil do a
5586                                  * decrement if it finds the stcb as long as
5587                                  * the locked tcb (last argument) is NOT a
5588                                  * TCB.. aka NULL.
5589                                  */
5590                                 SCTP_INP_INCR_REF(inp);
5591                                 stcb = sctp_findassociation_ep_addr(&inp,
5592                                     (struct sockaddr *)&thlds->spt_assoc_id,
5593                                     &net, NULL, NULL);
5594                                 if (stcb == NULL) {
5595                                         SCTP_INP_DECR_REF(inp);
5596                                 }
5597                         }
5598                         if (stcb && (net == NULL)) {
5599                                 struct sockaddr *sa;
5600
5601                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5602 #ifdef INET
5603                                 if (sa->sa_family == AF_INET) {
5604
5605                                         struct sockaddr_in *sin;
5606
5607                                         sin = (struct sockaddr_in *)sa;
5608                                         if (sin->sin_addr.s_addr) {
5609                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5610                                                 SCTP_TCB_UNLOCK(stcb);
5611                                                 error = EINVAL;
5612                                                 break;
5613                                         }
5614                                 } else
5615 #endif
5616 #ifdef INET6
5617                                 if (sa->sa_family == AF_INET6) {
5618                                         struct sockaddr_in6 *sin6;
5619
5620                                         sin6 = (struct sockaddr_in6 *)sa;
5621                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5622                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5623                                                 SCTP_TCB_UNLOCK(stcb);
5624                                                 error = EINVAL;
5625                                                 break;
5626                                         }
5627                                 } else
5628 #endif
5629                                 {
5630                                         error = EAFNOSUPPORT;
5631                                         SCTP_TCB_UNLOCK(stcb);
5632                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5633                                         break;
5634                                 }
5635                         }
5636                         if (stcb) {
5637                                 if (net) {
5638                                         if (net->dest_state & SCTP_ADDR_PF) {
5639                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5640                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5641                                                         net->dest_state &= ~SCTP_ADDR_PF;
5642                                                 }
5643                                         } else {
5644                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5645                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5646                                                         net->dest_state |= SCTP_ADDR_PF;
5647                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5648                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5649                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5650                                                 }
5651                                         }
5652                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5653                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5654                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5655                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5656                                                 }
5657                                         } else {
5658                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5659                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5660                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5661                                                 }
5662                                         }
5663                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5664                                         net->pf_threshold = thlds->spt_pathpfthld;
5665                                 } else {
5666                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5667                                                 if (net->dest_state & SCTP_ADDR_PF) {
5668                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5669                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5670                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5671                                                         }
5672                                                 } else {
5673                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5674                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5675                                                                 net->dest_state |= SCTP_ADDR_PF;
5676                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5677                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5678                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5679                                                         }
5680                                                 }
5681                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5682                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5683                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5684                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5685                                                         }
5686                                                 } else {
5687                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5688                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5689                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5690                                                         }
5691                                                 }
5692                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5693                                                 net->pf_threshold = thlds->spt_pathpfthld;
5694                                         }
5695                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5696                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5697                                 }
5698                         } else {
5699                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5700                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5701                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5702                                         SCTP_INP_WLOCK(inp);
5703                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5704                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5705                                         SCTP_INP_WUNLOCK(inp);
5706                                 } else {
5707                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5708                                         error = EINVAL;
5709                                 }
5710                         }
5711                         break;
5712                 }
5713         case SCTP_REMOTE_UDP_ENCAPS_PORT:
5714                 {
5715                         struct sctp_udpencaps *encaps;
5716                         struct sctp_nets *net;
5717
5718                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
5719                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
5720                         if (stcb) {
5721                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
5722                         } else {
5723                                 /*
5724                                  * We increment here since
5725                                  * sctp_findassociation_ep_addr() wil do a
5726                                  * decrement if it finds the stcb as long as
5727                                  * the locked tcb (last argument) is NOT a
5728                                  * TCB.. aka NULL.
5729                                  */
5730                                 net = NULL;
5731                                 SCTP_INP_INCR_REF(inp);
5732                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
5733                                 if (stcb == NULL) {
5734                                         SCTP_INP_DECR_REF(inp);
5735                                 }
5736                         }
5737                         if (stcb && (net == NULL)) {
5738                                 struct sockaddr *sa;
5739
5740                                 sa = (struct sockaddr *)&encaps->sue_address;
5741 #ifdef INET
5742                                 if (sa->sa_family == AF_INET) {
5743
5744                                         struct sockaddr_in *sin;
5745
5746                                         sin = (struct sockaddr_in *)sa;
5747                                         if (sin->sin_addr.s_addr) {
5748                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5749                                                 SCTP_TCB_UNLOCK(stcb);
5750                                                 error = EINVAL;
5751                                                 break;
5752                                         }
5753                                 } else
5754 #endif
5755 #ifdef INET6
5756                                 if (sa->sa_family == AF_INET6) {
5757                                         struct sockaddr_in6 *sin6;
5758
5759                                         sin6 = (struct sockaddr_in6 *)sa;
5760                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5761                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5762                                                 SCTP_TCB_UNLOCK(stcb);
5763                                                 error = EINVAL;
5764                                                 break;
5765                                         }
5766                                 } else
5767 #endif
5768                                 {
5769                                         error = EAFNOSUPPORT;
5770                                         SCTP_TCB_UNLOCK(stcb);
5771                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5772                                         break;
5773                                 }
5774                         }
5775                         if (stcb) {
5776                                 if (net) {
5777                                         net->port = encaps->sue_port;
5778                                 } else {
5779                                         stcb->asoc.port = encaps->sue_port;
5780                                 }
5781                                 SCTP_TCB_UNLOCK(stcb);
5782                         } else {
5783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5785                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
5786                                         SCTP_INP_WLOCK(inp);
5787                                         inp->sctp_ep.port = encaps->sue_port;
5788                                         SCTP_INP_WUNLOCK(inp);
5789                                 } else {
5790                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5791                                         error = EINVAL;
5792                                 }
5793                         }
5794                         break;
5795                 }
5796         default:
5797                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5798                 error = ENOPROTOOPT;
5799                 break;
5800         }                       /* end switch (opt) */
5801         return (error);
5802 }
5803
5804 int
5805 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5806 {
5807         void *optval = NULL;
5808         size_t optsize = 0;
5809         struct sctp_inpcb *inp;
5810         void *p;
5811         int error = 0;
5812
5813         if (sopt->sopt_level != IPPROTO_SCTP) {
5814                 /* wrong proto level... send back up to IP */
5815 #ifdef INET6
5816                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5817                         error = ip6_ctloutput(so, sopt);
5818 #endif                          /* INET6 */
5819 #if defined(INET) && defined (INET6)
5820                 else
5821 #endif
5822 #ifdef INET
5823                         error = ip_ctloutput(so, sopt);
5824 #endif
5825                 return (error);
5826         }
5827         inp = (struct sctp_inpcb *)so->so_pcb;
5828         optsize = sopt->sopt_valsize;
5829         if (optsize) {
5830                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5831                 if (optval == NULL) {
5832                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5833                         return (ENOBUFS);
5834                 }
5835                 error = sooptcopyin(sopt, optval, optsize, optsize);
5836                 if (error) {
5837                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5838                         goto out;
5839                 }
5840         }
5841         p = (void *)sopt->sopt_td;
5842         if (sopt->sopt_dir == SOPT_SET) {
5843                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5844         } else if (sopt->sopt_dir == SOPT_GET) {
5845                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5846         } else {
5847                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5848                 error = EINVAL;
5849         }
5850         if ((error == 0) && (optval != NULL)) {
5851                 error = sooptcopyout(sopt, optval, optsize);
5852                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5853         } else if (optval != NULL) {
5854                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5855         }
5856 out:
5857         return (error);
5858 }
5859
5860 #ifdef INET
5861 static int
5862 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5863 {
5864         int error = 0;
5865         int create_lock_on = 0;
5866         uint32_t vrf_id;
5867         struct sctp_inpcb *inp;
5868         struct sctp_tcb *stcb = NULL;
5869
5870         inp = (struct sctp_inpcb *)so->so_pcb;
5871         if (inp == NULL) {
5872                 /* I made the same as TCP since we are not setup? */
5873                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5874                 return (ECONNRESET);
5875         }
5876         if (addr == NULL) {
5877                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5878                 return EINVAL;
5879         }
5880         switch (addr->sa_family) {
5881 #ifdef INET6
5882         case AF_INET6:
5883                 {
5884                         struct sockaddr_in6 *sin6p;
5885
5886                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5888                                 return (EINVAL);
5889                         }
5890                         sin6p = (struct sockaddr_in6 *)addr;
5891                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5892                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5893                                 return (error);
5894                         }
5895                         break;
5896                 }
5897 #endif
5898 #ifdef INET
5899         case AF_INET:
5900                 {
5901                         struct sockaddr_in *sinp;
5902
5903                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5904                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5905                                 return (EINVAL);
5906                         }
5907                         sinp = (struct sockaddr_in *)addr;
5908                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5909                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5910                                 return (error);
5911                         }
5912                         break;
5913                 }
5914 #endif
5915         default:
5916                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5917                 return (EAFNOSUPPORT);
5918         }
5919         SCTP_INP_INCR_REF(inp);
5920         SCTP_ASOC_CREATE_LOCK(inp);
5921         create_lock_on = 1;
5922
5923
5924         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5925             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5926                 /* Should I really unlock ? */
5927                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5928                 error = EFAULT;
5929                 goto out_now;
5930         }
5931 #ifdef INET6
5932         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5933             (addr->sa_family == AF_INET6)) {
5934                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5935                 error = EINVAL;
5936                 goto out_now;
5937         }
5938 #endif                          /* INET6 */
5939         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5940             SCTP_PCB_FLAGS_UNBOUND) {
5941                 /* Bind a ephemeral port */
5942                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5943                 if (error) {
5944                         goto out_now;
5945                 }
5946         }
5947         /* Now do we connect? */
5948         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5949             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5950                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5951                 error = EINVAL;
5952                 goto out_now;
5953         }
5954         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5955             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5956                 /* We are already connected AND the TCP model */
5957                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5958                 error = EADDRINUSE;
5959                 goto out_now;
5960         }
5961         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
5962                 SCTP_INP_RLOCK(inp);
5963                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
5964                 SCTP_INP_RUNLOCK(inp);
5965         } else {
5966                 /*
5967                  * We increment here since sctp_findassociation_ep_addr()
5968                  * will do a decrement if it finds the stcb as long as the
5969                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
5970                  */
5971                 SCTP_INP_INCR_REF(inp);
5972                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
5973                 if (stcb == NULL) {
5974                         SCTP_INP_DECR_REF(inp);
5975                 } else {
5976                         SCTP_TCB_UNLOCK(stcb);
5977                 }
5978         }
5979         if (stcb != NULL) {
5980                 /* Already have or am bring up an association */
5981                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
5982                 error = EALREADY;
5983                 goto out_now;
5984         }
5985         vrf_id = inp->def_vrf_id;
5986         /* We are GOOD to go */
5987         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
5988         if (stcb == NULL) {
5989                 /* Gak! no memory */
5990                 goto out_now;
5991         }
5992         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
5993                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
5994                 /* Set the connected flag so we can queue data */
5995                 soisconnecting(so);
5996         }
5997         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
5998         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
5999
6000         /* initialize authentication parameters for the assoc */
6001         sctp_initialize_auth_params(inp, stcb);
6002
6003         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6004         SCTP_TCB_UNLOCK(stcb);
6005 out_now:
6006         if (create_lock_on) {
6007                 SCTP_ASOC_CREATE_UNLOCK(inp);
6008         }
6009         SCTP_INP_DECR_REF(inp);
6010         return (error);
6011 }
6012
6013 #endif
6014
6015 int
6016 sctp_listen(struct socket *so, int backlog, struct thread *p)
6017 {
6018         /*
6019          * Note this module depends on the protocol processing being called
6020          * AFTER any socket level flags and backlog are applied to the
6021          * socket. The traditional way that the socket flags are applied is
6022          * AFTER protocol processing. We have made a change to the
6023          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6024          * place if the socket API for SCTP is to work properly.
6025          */
6026
6027         int error = 0;
6028         struct sctp_inpcb *inp;
6029
6030         inp = (struct sctp_inpcb *)so->so_pcb;
6031         if (inp == NULL) {
6032                 /* I made the same as TCP since we are not setup? */
6033                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6034                 return (ECONNRESET);
6035         }
6036         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6037                 /* See if we have a listener */
6038                 struct sctp_inpcb *tinp;
6039                 union sctp_sockstore store, *sp;
6040
6041                 sp = &store;
6042                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6043                         /* not bound all */
6044                         struct sctp_laddr *laddr;
6045
6046                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6047                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6048                                 switch (sp->sa.sa_family) {
6049 #ifdef INET
6050                                 case AF_INET:
6051                                         sp->sin.sin_port = inp->sctp_lport;
6052                                         break;
6053 #endif
6054 #ifdef INET6
6055                                 case AF_INET6:
6056                                         sp->sin6.sin6_port = inp->sctp_lport;
6057                                         break;
6058 #endif
6059                                 default:
6060                                         break;
6061                                 }
6062                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6063                                 if (tinp && (tinp != inp) &&
6064                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6065                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6066                                     (tinp->sctp_socket->so_qlimit)) {
6067                                         /*
6068                                          * we have a listener already and
6069                                          * its not this inp.
6070                                          */
6071                                         SCTP_INP_DECR_REF(tinp);
6072                                         return (EADDRINUSE);
6073                                 } else if (tinp) {
6074                                         SCTP_INP_DECR_REF(tinp);
6075                                 }
6076                         }
6077                 } else {
6078                         /* Setup a local addr bound all */
6079                         memset(&store, 0, sizeof(store));
6080                         switch (sp->sa.sa_family) {
6081 #ifdef INET
6082                         case AF_INET:
6083                                 store.sin.sin_port = inp->sctp_lport;
6084                                 break;
6085 #endif
6086 #ifdef INET6
6087                         case AF_INET6:
6088                                 sp->sin6.sin6_port = inp->sctp_lport;
6089                                 break;
6090 #endif
6091                         default:
6092                                 break;
6093                         }
6094 #ifdef INET6
6095                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6096                                 store.sa.sa_family = AF_INET6;
6097                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6098                         }
6099 #endif
6100 #ifdef INET
6101                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6102                                 store.sa.sa_family = AF_INET;
6103                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6104                         }
6105 #endif
6106                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6107                         if (tinp && (tinp != inp) &&
6108                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6109                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6110                             (tinp->sctp_socket->so_qlimit)) {
6111                                 /*
6112                                  * we have a listener already and its not
6113                                  * this inp.
6114                                  */
6115                                 SCTP_INP_DECR_REF(tinp);
6116                                 return (EADDRINUSE);
6117                         } else if (tinp) {
6118                                 SCTP_INP_DECR_REF(inp);
6119                         }
6120                 }
6121         }
6122         SCTP_INP_RLOCK(inp);
6123 #ifdef SCTP_LOCK_LOGGING
6124         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6125                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6126         }
6127 #endif
6128         SOCK_LOCK(so);
6129         error = solisten_proto_check(so);
6130         if (error) {
6131                 SOCK_UNLOCK(so);
6132                 SCTP_INP_RUNLOCK(inp);
6133                 return (error);
6134         }
6135         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6136             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6137                 /*
6138                  * The unlucky case - We are in the tcp pool with this guy.
6139                  * - Someone else is in the main inp slot. - We must move
6140                  * this guy (the listener) to the main slot - We must then
6141                  * move the guy that was listener to the TCP Pool.
6142                  */
6143                 if (sctp_swap_inpcb_for_listen(inp)) {
6144                         goto in_use;
6145                 }
6146         }
6147         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6148             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6149                 /* We are already connected AND the TCP model */
6150 in_use:
6151                 SCTP_INP_RUNLOCK(inp);
6152                 SOCK_UNLOCK(so);
6153                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6154                 return (EADDRINUSE);
6155         }
6156         SCTP_INP_RUNLOCK(inp);
6157         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6158                 /* We must do a bind. */
6159                 SOCK_UNLOCK(so);
6160                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6161                         /* bind error, probably perm */
6162                         return (error);
6163                 }
6164                 SOCK_LOCK(so);
6165         }
6166         /* It appears for 7.0 and on, we must always call this. */
6167         solisten_proto(so, backlog);
6168         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6169                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6170                 so->so_options &= ~SO_ACCEPTCONN;
6171         }
6172         if (backlog == 0) {
6173                 /* turning off listen */
6174                 so->so_options &= ~SO_ACCEPTCONN;
6175         }
6176         SOCK_UNLOCK(so);
6177         return (error);
6178 }
6179
6180 static int sctp_defered_wakeup_cnt = 0;
6181
6182 int
6183 sctp_accept(struct socket *so, struct sockaddr **addr)
6184 {
6185         struct sctp_tcb *stcb;
6186         struct sctp_inpcb *inp;
6187         union sctp_sockstore store;
6188
6189 #ifdef INET6
6190         int error;
6191
6192 #endif
6193         inp = (struct sctp_inpcb *)so->so_pcb;
6194
6195         if (inp == NULL) {
6196                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6197                 return (ECONNRESET);
6198         }
6199         SCTP_INP_RLOCK(inp);
6200         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6201                 SCTP_INP_RUNLOCK(inp);
6202                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6203                 return (EOPNOTSUPP);
6204         }
6205         if (so->so_state & SS_ISDISCONNECTED) {
6206                 SCTP_INP_RUNLOCK(inp);
6207                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6208                 return (ECONNABORTED);
6209         }
6210         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6211         if (stcb == NULL) {
6212                 SCTP_INP_RUNLOCK(inp);
6213                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6214                 return (ECONNRESET);
6215         }
6216         SCTP_TCB_LOCK(stcb);
6217         SCTP_INP_RUNLOCK(inp);
6218         store = stcb->asoc.primary_destination->ro._l_addr;
6219         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6220         SCTP_TCB_UNLOCK(stcb);
6221         switch (store.sa.sa_family) {
6222 #ifdef INET
6223         case AF_INET:
6224                 {
6225                         struct sockaddr_in *sin;
6226
6227                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6228                         if (sin == NULL)
6229                                 return (ENOMEM);
6230                         sin->sin_family = AF_INET;
6231                         sin->sin_len = sizeof(*sin);
6232                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
6233                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
6234                         *addr = (struct sockaddr *)sin;
6235                         break;
6236                 }
6237 #endif
6238 #ifdef INET6
6239         case AF_INET6:
6240                 {
6241                         struct sockaddr_in6 *sin6;
6242
6243                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
6244                         if (sin6 == NULL)
6245                                 return (ENOMEM);
6246                         sin6->sin6_family = AF_INET6;
6247                         sin6->sin6_len = sizeof(*sin6);
6248                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
6249
6250                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
6251                         if ((error = sa6_recoverscope(sin6)) != 0) {
6252                                 SCTP_FREE_SONAME(sin6);
6253                                 return (error);
6254                         }
6255                         *addr = (struct sockaddr *)sin6;
6256                         break;
6257                 }
6258 #endif
6259         default:
6260                 /* TSNH */
6261                 break;
6262         }
6263         /* Wake any delayed sleep action */
6264         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6265                 SCTP_INP_WLOCK(inp);
6266                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6267                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6268                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6269                         SCTP_INP_WUNLOCK(inp);
6270                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6271                         if (sowriteable(inp->sctp_socket)) {
6272                                 sowwakeup_locked(inp->sctp_socket);
6273                         } else {
6274                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6275                         }
6276                         SCTP_INP_WLOCK(inp);
6277                 }
6278                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6279                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6280                         SCTP_INP_WUNLOCK(inp);
6281                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6282                         if (soreadable(inp->sctp_socket)) {
6283                                 sctp_defered_wakeup_cnt++;
6284                                 sorwakeup_locked(inp->sctp_socket);
6285                         } else {
6286                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6287                         }
6288                         SCTP_INP_WLOCK(inp);
6289                 }
6290                 SCTP_INP_WUNLOCK(inp);
6291         }
6292         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6293                 SCTP_TCB_LOCK(stcb);
6294                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6295         }
6296         return (0);
6297 }
6298
6299 #ifdef INET
6300 int
6301 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6302 {
6303         struct sockaddr_in *sin;
6304         uint32_t vrf_id;
6305         struct sctp_inpcb *inp;
6306         struct sctp_ifa *sctp_ifa;
6307
6308         /*
6309          * Do the malloc first in case it blocks.
6310          */
6311         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6312         if (sin == NULL)
6313                 return (ENOMEM);
6314         sin->sin_family = AF_INET;
6315         sin->sin_len = sizeof(*sin);
6316         inp = (struct sctp_inpcb *)so->so_pcb;
6317         if (!inp) {
6318                 SCTP_FREE_SONAME(sin);
6319                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6320                 return (ECONNRESET);
6321         }
6322         SCTP_INP_RLOCK(inp);
6323         sin->sin_port = inp->sctp_lport;
6324         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6325                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6326                         struct sctp_tcb *stcb;
6327                         struct sockaddr_in *sin_a;
6328                         struct sctp_nets *net;
6329                         int fnd;
6330
6331                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6332                         if (stcb == NULL) {
6333                                 goto notConn;
6334                         }
6335                         fnd = 0;
6336                         sin_a = NULL;
6337                         SCTP_TCB_LOCK(stcb);
6338                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6339                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6340                                 if (sin_a == NULL)
6341                                         /* this will make coverity happy */
6342                                         continue;
6343
6344                                 if (sin_a->sin_family == AF_INET) {
6345                                         fnd = 1;
6346                                         break;
6347                                 }
6348                         }
6349                         if ((!fnd) || (sin_a == NULL)) {
6350                                 /* punt */
6351                                 SCTP_TCB_UNLOCK(stcb);
6352                                 goto notConn;
6353                         }
6354                         vrf_id = inp->def_vrf_id;
6355                         sctp_ifa = sctp_source_address_selection(inp,
6356                             stcb,
6357                             (sctp_route_t *) & net->ro,
6358                             net, 0, vrf_id);
6359                         if (sctp_ifa) {
6360                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6361                                 sctp_free_ifa(sctp_ifa);
6362                         }
6363                         SCTP_TCB_UNLOCK(stcb);
6364                 } else {
6365                         /* For the bound all case you get back 0 */
6366         notConn:
6367                         sin->sin_addr.s_addr = 0;
6368                 }
6369
6370         } else {
6371                 /* Take the first IPv4 address in the list */
6372                 struct sctp_laddr *laddr;
6373                 int fnd = 0;
6374
6375                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6376                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6377                                 struct sockaddr_in *sin_a;
6378
6379                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6380                                 sin->sin_addr = sin_a->sin_addr;
6381                                 fnd = 1;
6382                                 break;
6383                         }
6384                 }
6385                 if (!fnd) {
6386                         SCTP_FREE_SONAME(sin);
6387                         SCTP_INP_RUNLOCK(inp);
6388                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6389                         return (ENOENT);
6390                 }
6391         }
6392         SCTP_INP_RUNLOCK(inp);
6393         (*addr) = (struct sockaddr *)sin;
6394         return (0);
6395 }
6396
6397 int
6398 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6399 {
6400         struct sockaddr_in *sin;
6401         int fnd;
6402         struct sockaddr_in *sin_a;
6403         struct sctp_inpcb *inp;
6404         struct sctp_tcb *stcb;
6405         struct sctp_nets *net;
6406
6407         /* Do the malloc first in case it blocks. */
6408         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6409         if (sin == NULL)
6410                 return (ENOMEM);
6411         sin->sin_family = AF_INET;
6412         sin->sin_len = sizeof(*sin);
6413
6414         inp = (struct sctp_inpcb *)so->so_pcb;
6415         if ((inp == NULL) ||
6416             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6417                 /* UDP type and listeners will drop out here */
6418                 SCTP_FREE_SONAME(sin);
6419                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6420                 return (ENOTCONN);
6421         }
6422         SCTP_INP_RLOCK(inp);
6423         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6424         if (stcb) {
6425                 SCTP_TCB_LOCK(stcb);
6426         }
6427         SCTP_INP_RUNLOCK(inp);
6428         if (stcb == NULL) {
6429                 SCTP_FREE_SONAME(sin);
6430                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6431                 return (ECONNRESET);
6432         }
6433         fnd = 0;
6434         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6435                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6436                 if (sin_a->sin_family == AF_INET) {
6437                         fnd = 1;
6438                         sin->sin_port = stcb->rport;
6439                         sin->sin_addr = sin_a->sin_addr;
6440                         break;
6441                 }
6442         }
6443         SCTP_TCB_UNLOCK(stcb);
6444         if (!fnd) {
6445                 /* No IPv4 address */
6446                 SCTP_FREE_SONAME(sin);
6447                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6448                 return (ENOENT);
6449         }
6450         (*addr) = (struct sockaddr *)sin;
6451         return (0);
6452 }
6453
6454 #ifdef INET
6455 struct pr_usrreqs sctp_usrreqs = {
6456         .pru_abort = sctp_abort,
6457         .pru_accept = sctp_accept,
6458         .pru_attach = sctp_attach,
6459         .pru_bind = sctp_bind,
6460         .pru_connect = sctp_connect,
6461         .pru_control = in_control,
6462         .pru_close = sctp_close,
6463         .pru_detach = sctp_close,
6464         .pru_sopoll = sopoll_generic,
6465         .pru_flush = sctp_flush,
6466         .pru_disconnect = sctp_disconnect,
6467         .pru_listen = sctp_listen,
6468         .pru_peeraddr = sctp_peeraddr,
6469         .pru_send = sctp_sendm,
6470         .pru_shutdown = sctp_shutdown,
6471         .pru_sockaddr = sctp_ingetaddr,
6472         .pru_sosend = sctp_sosend,
6473         .pru_soreceive = sctp_soreceive
6474 };
6475
6476 #endif
6477 #endif