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
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  90 #endif
  91
  92
  93 }
  94
  95 void
  96 sctp_finish(void)
  97 {
  98         sctp_pcb_finish();
  99 }
 100
 101
 102
 103 void
 104 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 105 {
 106         struct sctp_tmit_chunk *chk;
 107         uint16_t overhead;
 108
 109         /* Adjust that too */
 110         stcb->asoc.smallest_mtu = nxtsz;
 111         /* now off to subtract IP_DF flag if needed */
 112         overhead = IP_HDR_SIZE;
 113         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 114                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 115         }
 116         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 117                 if ((chk->send_size + overhead) > nxtsz) {
 118                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 119                 }
 120         }
 121         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 122                 if ((chk->send_size + overhead) > nxtsz) {
 123                         /*
 124                          * For this guy we also mark for immediate resend
 125                          * since we sent to big of chunk
 126                          */
 127                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 128                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 129                                 sctp_flight_size_decrease(chk);
 130                                 sctp_total_flight_decrease(stcb, chk);
 131                         }
 132                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 133                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 134                         }
 135                         chk->sent = SCTP_DATAGRAM_RESEND;
 136                         chk->rec.data.doing_fast_retransmit = 0;
 137                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 138                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 139                                     chk->whoTo->flight_size,
 140                                     chk->book_size,
 141                                     (uintptr_t) chk->whoTo,
 142                                     chk->rec.data.TSN_seq);
 143                         }
 144                         /* Clear any time so NO RTT is being done */
 145                         chk->do_rtt = 0;
 146                 }
 147         }
 148 }
 149
 150 #ifdef INET
 151 static void
 152 sctp_notify_mbuf(struct sctp_inpcb *inp,
 153     struct sctp_tcb *stcb,
 154     struct sctp_nets *net,
 155     struct ip *ip,
 156     struct sctphdr *sh)
 157 {
 158         struct icmp *icmph;
 159         int totsz, tmr_stopped = 0;
 160         uint16_t nxtsz;
 161
 162         /* protection */
 163         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 164             (ip == NULL) || (sh == NULL)) {
 165                 if (stcb != NULL) {
 166                         SCTP_TCB_UNLOCK(stcb);
 167                 }
 168                 return;
 169         }
 170         /* First job is to verify the vtag matches what I would send */
 171         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 172                 SCTP_TCB_UNLOCK(stcb);
 173                 return;
 174         }
 175         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 176             sizeof(struct ip)));
 177         if (icmph->icmp_type != ICMP_UNREACH) {
 178                 /* We only care about unreachable */
 179                 SCTP_TCB_UNLOCK(stcb);
 180                 return;
 181         }
 182         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 183                 /* not a unreachable message due to frag. */
 184                 SCTP_TCB_UNLOCK(stcb);
 185                 return;
 186         }
 187         totsz = ip->ip_len;
 188
 189         nxtsz = ntohs(icmph->icmp_nextmtu);
 190         if (nxtsz == 0) {
 191                 /*
 192                  * old type router that does not tell us what the next size
 193                  * mtu is. Rats we will have to guess (in a educated fashion
 194                  * of course)
 195                  */
 196                 nxtsz = sctp_get_prev_mtu(totsz);
 197         }
 198         /* Stop any PMTU timer */
 199         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 200                 tmr_stopped = 1;
 201                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 202                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 203         }
 204         /* Adjust destination size limit */
 205         if (net->mtu > nxtsz) {
 206                 net->mtu = nxtsz;
 207                 if (net->port) {
 208                         net->mtu -= sizeof(struct udphdr);
 209                 }
 210         }
 211         /* now what about the ep? */
 212         if (stcb->asoc.smallest_mtu > nxtsz) {
 213                 sctp_pathmtu_adjustment(stcb, nxtsz);
 214         }
 215         if (tmr_stopped)
 216                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 217
 218         SCTP_TCB_UNLOCK(stcb);
 219 }
 220
 221 #endif
 222
 223 void
 224 sctp_notify(struct sctp_inpcb *inp,
 225     struct ip *ip,
 226     struct sctphdr *sh,
 227     struct sockaddr *to,
 228     struct sctp_tcb *stcb,
 229     struct sctp_nets *net)
 230 {
 231 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 232         struct socket *so;
 233
 234 #endif
 235         /* protection */
 236         int reason;
 237         struct icmp *icmph;
 238
 239
 240         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 241             (sh == NULL) || (to == NULL)) {
 242                 if (stcb)
 243                         SCTP_TCB_UNLOCK(stcb);
 244                 return;
 245         }
 246         /* First job is to verify the vtag matches what I would send */
 247         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 248                 SCTP_TCB_UNLOCK(stcb);
 249                 return;
 250         }
 251         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 252             sizeof(struct ip)));
 253         if (icmph->icmp_type != ICMP_UNREACH) {
 254                 /* We only care about unreachable */
 255                 SCTP_TCB_UNLOCK(stcb);
 256                 return;
 257         }
 258         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 259             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 260             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 261             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 262             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 263             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 264             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 265             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 266
 267                 /*
 268                  * Hmm reachablity problems we must examine closely. If its
 269                  * not reachable, we may have lost a network. Or if there is
 270                  * NO protocol at the other end named SCTP. well we consider
 271                  * it a OOTB abort.
 272                  */
 273                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 274                         /* Ok that destination is NOT reachable */
 275                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 276                         net->dest_state &= ~SCTP_ADDR_PF;
 277                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 278                             stcb, SCTP_FAILED_THRESHOLD,
 279                             (void *)net, SCTP_SO_NOT_LOCKED);
 280                 }
 281                 SCTP_TCB_UNLOCK(stcb);
 282         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 283             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 284                 /*
 285                  * Here the peer is either playing tricks on us, including
 286                  * an address that belongs to someone who does not support
 287                  * SCTP OR was a userland implementation that shutdown and
 288                  * now is dead. In either case treat it like a OOTB abort
 289                  * with no TCB
 290                  */
 291                 reason = SCTP_PEER_FAULTY;
 292                 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
 293 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 294                 so = SCTP_INP_SO(inp);
 295                 atomic_add_int(&stcb->asoc.refcnt, 1);
 296                 SCTP_TCB_UNLOCK(stcb);
 297                 SCTP_SOCKET_LOCK(so, 1);
 298                 SCTP_TCB_LOCK(stcb);
 299                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 300 #endif
 301                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 302 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 303                 SCTP_SOCKET_UNLOCK(so, 1);
 304                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 305 #endif
 306                 /* no need to unlock here, since the TCB is gone */
 307         } else {
 308                 SCTP_TCB_UNLOCK(stcb);
 309         }
 310 }
 311
 312 #ifdef INET
 313 void
 314 sctp_ctlinput(cmd, sa, vip)
 315         int cmd;
 316         struct sockaddr *sa;
 317         void *vip;
 318 {
 319         struct ip *ip = vip;
 320         struct sctphdr *sh;
 321         uint32_t vrf_id;
 322
 323         /* FIX, for non-bsd is this right? */
 324         vrf_id = SCTP_DEFAULT_VRFID;
 325         if (sa->sa_family != AF_INET ||
 326             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 327                 return;
 328         }
 329         if (PRC_IS_REDIRECT(cmd)) {
 330                 ip = 0;
 331         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 332                 return;
 333         }
 334         if (ip) {
 335                 struct sctp_inpcb *inp = NULL;
 336                 struct sctp_tcb *stcb = NULL;
 337                 struct sctp_nets *net = NULL;
 338                 struct sockaddr_in to, from;
 339
 340                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 341                 bzero(&to, sizeof(to));
 342                 bzero(&from, sizeof(from));
 343                 from.sin_family = to.sin_family = AF_INET;
 344                 from.sin_len = to.sin_len = sizeof(to);
 345                 from.sin_port = sh->src_port;
 346                 from.sin_addr = ip->ip_src;
 347                 to.sin_port = sh->dest_port;
 348                 to.sin_addr = ip->ip_dst;
 349
 350                 /*
 351                  * 'to' holds the dest of the packet that failed to be sent.
 352                  * 'from' holds our local endpoint address. Thus we reverse
 353                  * the to and the from in the lookup.
 354                  */
 355                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
 356                     (struct sockaddr *)&to,
 357                     &inp, &net, 1, vrf_id);
 358                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 359                         if (cmd != PRC_MSGSIZE) {
 360                                 sctp_notify(inp, ip, sh,
 361                                     (struct sockaddr *)&to, stcb,
 362                                     net);
 363                         } else {
 364                                 /* handle possible ICMP size messages */
 365                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 366                         }
 367                 } else {
 368                         if ((stcb == NULL) && (inp != NULL)) {
 369                                 /* reduce ref-count */
 370                                 SCTP_INP_WLOCK(inp);
 371                                 SCTP_INP_DECR_REF(inp);
 372                                 SCTP_INP_WUNLOCK(inp);
 373                         }
 374                         if (stcb) {
 375                                 SCTP_TCB_UNLOCK(stcb);
 376                         }
 377                 }
 378         }
 379         return;
 380 }
 381
 382 #endif
 383
 384 static int
 385 sctp_getcred(SYSCTL_HANDLER_ARGS)
 386 {
 387         struct xucred xuc;
 388         struct sockaddr_in addrs[2];
 389         struct sctp_inpcb *inp;
 390         struct sctp_nets *net;
 391         struct sctp_tcb *stcb;
 392         int error;
 393         uint32_t vrf_id;
 394
 395         /* FIX, for non-bsd is this right? */
 396         vrf_id = SCTP_DEFAULT_VRFID;
 397
 398         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 399
 400         if (error)
 401                 return (error);
 402
 403         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 404         if (error)
 405                 return (error);
 406
 407         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
 408             sintosa(&addrs[1]),
 409             &inp, &net, 1, vrf_id);
 410         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 411                 if ((inp != NULL) && (stcb == NULL)) {
 412                         /* reduce ref-count */
 413                         SCTP_INP_WLOCK(inp);
 414                         SCTP_INP_DECR_REF(inp);
 415                         goto cred_can_cont;
 416                 }
 417                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 418                 error = ENOENT;
 419                 goto out;
 420         }
 421         SCTP_TCB_UNLOCK(stcb);
 422         /*
 423          * We use the write lock here, only since in the error leg we need
 424          * it. If we used RLOCK, then we would have to
 425          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 426          * Better to use higher wlock.
 427          */
 428         SCTP_INP_WLOCK(inp);
 429 cred_can_cont:
 430         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 431         if (error) {
 432                 SCTP_INP_WUNLOCK(inp);
 433                 goto out;
 434         }
 435         cru2x(inp->sctp_socket->so_cred, &xuc);
 436         SCTP_INP_WUNLOCK(inp);
 437         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 438 out:
 439         return (error);
 440 }
 441
 442 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 443     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 444
 445
 446 #ifdef INET
 447 static void
 448 sctp_abort(struct socket *so)
 449 {
 450         struct sctp_inpcb *inp;
 451         uint32_t flags;
 452
 453         inp = (struct sctp_inpcb *)so->so_pcb;
 454         if (inp == NULL) {
 455                 return;
 456         }
 457 sctp_must_try_again:
 458         flags = inp->sctp_flags;
 459 #ifdef SCTP_LOG_CLOSING
 460         sctp_log_closing(inp, NULL, 17);
 461 #endif
 462         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 463             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 464 #ifdef SCTP_LOG_CLOSING
 465                 sctp_log_closing(inp, NULL, 16);
 466 #endif
 467                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 468                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 469                 SOCK_LOCK(so);
 470                 SCTP_SB_CLEAR(so->so_snd);
 471                 /*
 472                  * same for the rcv ones, they are only here for the
 473                  * accounting/select.
 474                  */
 475                 SCTP_SB_CLEAR(so->so_rcv);
 476
 477                 /* Now null out the reference, we are completely detached. */
 478                 so->so_pcb = NULL;
 479                 SOCK_UNLOCK(so);
 480         } else {
 481                 flags = inp->sctp_flags;
 482                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 483                         goto sctp_must_try_again;
 484                 }
 485         }
 486         return;
 487 }
 488
 489 static int
 490 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 491 {
 492         struct sctp_inpcb *inp;
 493         struct inpcb *ip_inp;
 494         int error;
 495         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 496
 497 #ifdef IPSEC
 498         uint32_t flags;
 499
 500 #endif
 501
 502         inp = (struct sctp_inpcb *)so->so_pcb;
 503         if (inp != 0) {
 504                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 505                 return (EINVAL);
 506         }
 507         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 508                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 509                 if (error) {
 510                         return (error);
 511                 }
 512         }
 513         error = sctp_inpcb_alloc(so, vrf_id);
 514         if (error) {
 515                 return (error);
 516         }
 517         inp = (struct sctp_inpcb *)so->so_pcb;
 518         SCTP_INP_WLOCK(inp);
 519         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 520         ip_inp = &inp->ip_inp.inp;
 521         ip_inp->inp_vflag |= INP_IPV4;
 522         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 523 #ifdef IPSEC
 524         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 525 #ifdef SCTP_LOG_CLOSING
 526         sctp_log_closing(inp, NULL, 17);
 527 #endif
 528         if (error != 0) {
 529 try_again:
 530                 flags = inp->sctp_flags;
 531                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 532                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 533 #ifdef SCTP_LOG_CLOSING
 534                         sctp_log_closing(inp, NULL, 15);
 535 #endif
 536                         SCTP_INP_WUNLOCK(inp);
 537                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 538                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 539                 } else {
 540                         flags = inp->sctp_flags;
 541                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 542                                 goto try_again;
 543                         } else {
 544                                 SCTP_INP_WUNLOCK(inp);
 545                         }
 546                 }
 547                 return (error);
 548         }
 549 #endif                          /* IPSEC */
 550         SCTP_INP_WUNLOCK(inp);
 551         return (0);
 552 }
 553
 554 static int
 555 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 556 {
 557         struct sctp_inpcb *inp = NULL;
 558         int error;
 559
 560 #ifdef INET
 561         if (addr && addr->sa_family != AF_INET) {
 562                 /* must be a v4 address! */
 563                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 564                 return (EINVAL);
 565         }
 566 #endif                          /* INET6 */
 567         if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
 568                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 569                 return (EINVAL);
 570         }
 571         inp = (struct sctp_inpcb *)so->so_pcb;
 572         if (inp == NULL) {
 573                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 574                 return (EINVAL);
 575         }
 576         error = sctp_inpcb_bind(so, addr, NULL, p);
 577         return (error);
 578 }
 579
 580 #endif
 581 void
 582 sctp_close(struct socket *so)
 583 {
 584         struct sctp_inpcb *inp;
 585         uint32_t flags;
 586
 587         inp = (struct sctp_inpcb *)so->so_pcb;
 588         if (inp == NULL)
 589                 return;
 590
 591         /*
 592          * Inform all the lower layer assoc that we are done.
 593          */
 594 sctp_must_try_again:
 595         flags = inp->sctp_flags;
 596 #ifdef SCTP_LOG_CLOSING
 597         sctp_log_closing(inp, NULL, 17);
 598 #endif
 599         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 600             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 601                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 602                     (so->so_rcv.sb_cc > 0)) {
 603 #ifdef SCTP_LOG_CLOSING
 604                         sctp_log_closing(inp, NULL, 13);
 605 #endif
 606                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 607                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 608                 } else {
 609 #ifdef SCTP_LOG_CLOSING
 610                         sctp_log_closing(inp, NULL, 14);
 611 #endif
 612                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 613                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 614                 }
 615                 /*
 616                  * The socket is now detached, no matter what the state of
 617                  * the SCTP association.
 618                  */
 619                 SOCK_LOCK(so);
 620                 SCTP_SB_CLEAR(so->so_snd);
 621                 /*
 622                  * same for the rcv ones, they are only here for the
 623                  * accounting/select.
 624                  */
 625                 SCTP_SB_CLEAR(so->so_rcv);
 626
 627                 /* Now null out the reference, we are completely detached. */
 628                 so->so_pcb = NULL;
 629                 SOCK_UNLOCK(so);
 630         } else {
 631                 flags = inp->sctp_flags;
 632                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 633                         goto sctp_must_try_again;
 634                 }
 635         }
 636         return;
 637 }
 638
 639
 640 int
 641 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 642     struct mbuf *control, struct thread *p);
 643
 644
 645 int
 646 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 647     struct mbuf *control, struct thread *p)
 648 {
 649         struct sctp_inpcb *inp;
 650         int error;
 651
 652         inp = (struct sctp_inpcb *)so->so_pcb;
 653         if (inp == NULL) {
 654                 if (control) {
 655                         sctp_m_freem(control);
 656                         control = NULL;
 657                 }
 658                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 659                 sctp_m_freem(m);
 660                 return (EINVAL);
 661         }
 662         /* Got to have an to address if we are NOT a connected socket */
 663         if ((addr == NULL) &&
 664             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 665             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 666                 goto connected_type;
 667         } else if (addr == NULL) {
 668                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 669                 error = EDESTADDRREQ;
 670                 sctp_m_freem(m);
 671                 if (control) {
 672                         sctp_m_freem(control);
 673                         control = NULL;
 674                 }
 675                 return (error);
 676         }
 677 #ifdef INET6
 678         if (addr->sa_family != AF_INET) {
 679                 /* must be a v4 address! */
 680                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 681                 sctp_m_freem(m);
 682                 if (control) {
 683                         sctp_m_freem(control);
 684                         control = NULL;
 685                 }
 686                 error = EDESTADDRREQ;
 687                 return (error);
 688         }
 689 #endif                          /* INET6 */
 690 connected_type:
 691         /* now what about control */
 692         if (control) {
 693                 if (inp->control) {
 694                         SCTP_PRINTF("huh? control set?\n");
 695                         sctp_m_freem(inp->control);
 696                         inp->control = NULL;
 697                 }
 698                 inp->control = control;
 699         }
 700         /* Place the data */
 701         if (inp->pkt) {
 702                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 703                 inp->pkt_last = m;
 704         } else {
 705                 inp->pkt_last = inp->pkt = m;
 706         }
 707         if (
 708         /* FreeBSD uses a flag passed */
 709             ((flags & PRUS_MORETOCOME) == 0)
 710             ) {
 711                 /*
 712                  * note with the current version this code will only be used
 713                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 714                  * re-defining sosend to use the sctp_sosend. One can
 715                  * optionally switch back to this code (by changing back the
 716                  * definitions) but this is not advisable. This code is used
 717                  * by FreeBSD when sending a file with sendfile() though.
 718                  */
 719                 int ret;
 720
 721                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 722                 inp->pkt = NULL;
 723                 inp->control = NULL;
 724                 return (ret);
 725         } else {
 726                 return (0);
 727         }
 728 }
 729
 730 int
 731 sctp_disconnect(struct socket *so)
 732 {
 733         struct sctp_inpcb *inp;
 734
 735         inp = (struct sctp_inpcb *)so->so_pcb;
 736         if (inp == NULL) {
 737                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 738                 return (ENOTCONN);
 739         }
 740         SCTP_INP_RLOCK(inp);
 741         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 742             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 743                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 744                         /* No connection */
 745                         SCTP_INP_RUNLOCK(inp);
 746                         return (0);
 747                 } else {
 748                         struct sctp_association *asoc;
 749                         struct sctp_tcb *stcb;
 750
 751                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 752                         if (stcb == NULL) {
 753                                 SCTP_INP_RUNLOCK(inp);
 754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 755                                 return (EINVAL);
 756                         }
 757                         SCTP_TCB_LOCK(stcb);
 758                         asoc = &stcb->asoc;
 759                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 760                                 /* We are about to be freed, out of here */
 761                                 SCTP_TCB_UNLOCK(stcb);
 762                                 SCTP_INP_RUNLOCK(inp);
 763                                 return (0);
 764                         }
 765                         if (((so->so_options & SO_LINGER) &&
 766                             (so->so_linger == 0)) ||
 767                             (so->so_rcv.sb_cc > 0)) {
 768                                 if (SCTP_GET_STATE(asoc) !=
 769                                     SCTP_STATE_COOKIE_WAIT) {
 770                                         /* Left with Data unread */
 771                                         struct mbuf *err;
 772
 773                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
 774                                         if (err) {
 775                                                 /*
 776                                                  * Fill in the user
 777                                                  * initiated abort
 778                                                  */
 779                                                 struct sctp_paramhdr *ph;
 780
 781                                                 ph = mtod(err, struct sctp_paramhdr *);
 782                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 783                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 784                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 785                                         }
 786 #if defined(SCTP_PANIC_ON_ABORT)
 787                                         panic("disconnect does an abort");
 788 #endif
 789                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 790                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 791                                 }
 792                                 SCTP_INP_RUNLOCK(inp);
 793                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 794                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 795                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 796                                 }
 797                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 798                                 /* No unlock tcb assoc is gone */
 799                                 return (0);
 800                         }
 801                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 802                             TAILQ_EMPTY(&asoc->sent_queue) &&
 803                             (asoc->stream_queue_cnt == 0)) {
 804                                 /* there is nothing queued to send, so done */
 805                                 if (asoc->locked_on_sending) {
 806                                         goto abort_anyway;
 807                                 }
 808                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 809                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 810                                         /* only send SHUTDOWN 1st time thru */
 811                                         struct sctp_nets *netp;
 812
 813                                         if (stcb->asoc.alternate) {
 814                                                 netp = stcb->asoc.alternate;
 815                                         } else {
 816                                                 netp = stcb->asoc.primary_destination;
 817                                         }
 818                                         sctp_stop_timers_for_shutdown(stcb);
 819                                         sctp_send_shutdown(stcb, netp);
 820                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 821                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 822                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 823                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 824                                         }
 825                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 826                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 827                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 828                                             stcb->sctp_ep, stcb, netp);
 829                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 830                                             stcb->sctp_ep, stcb, netp);
 831
 832                                 }
 833                         } else {
 834                                 /*
 835                                  * we still got (or just got) data to send,
 836                                  * so set SHUTDOWN_PENDING
 837                                  */
 838                                 /*
 839                                  * XXX sockets draft says that SCTP_EOF
 840                                  * should be sent with no data. currently,
 841                                  * we will allow user data to be sent first
 842                                  * and move to SHUTDOWN-PENDING
 843                                  */
 844                                 struct sctp_nets *netp;
 845
 846                                 if (stcb->asoc.alternate) {
 847                                         netp = stcb->asoc.alternate;
 848                                 } else {
 849                                         netp = stcb->asoc.primary_destination;
 850                                 }
 851
 852                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 853                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 854                                     netp);
 855                                 if (asoc->locked_on_sending) {
 856                                         /* Locked to send out the data */
 857                                         struct sctp_stream_queue_pending *sp;
 858
 859                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 860                                         if (sp == NULL) {
 861                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 862                                                     asoc->locked_on_sending->stream_no);
 863                                         } else {
 864                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 865                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 866                                         }
 867                                 }
 868                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 869                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 870                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 871                                         struct mbuf *op_err;
 872
 873                         abort_anyway:
 874                                         op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
 875                                             0, M_DONTWAIT, 1, MT_DATA);
 876                                         if (op_err) {
 877                                                 /*
 878                                                  * Fill in the user
 879                                                  * initiated abort
 880                                                  */
 881                                                 struct sctp_paramhdr *ph;
 882                                                 uint32_t *ippp;
 883
 884                                                 SCTP_BUF_LEN(op_err) =
 885                                                     (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
 886                                                 ph = mtod(op_err,
 887                                                     struct sctp_paramhdr *);
 888                                                 ph->param_type = htons(
 889                                                     SCTP_CAUSE_USER_INITIATED_ABT);
 890                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
 891                                                 ippp = (uint32_t *) (ph + 1);
 892                                                 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
 893                                         }
 894 #if defined(SCTP_PANIC_ON_ABORT)
 895                                         panic("disconnect does an abort");
 896 #endif
 897
 898                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 899                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 900                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 901                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 902                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 903                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 904                                         }
 905                                         SCTP_INP_RUNLOCK(inp);
 906                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 907                                         return (0);
 908                                 } else {
 909                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 910                                 }
 911                         }
 912                         soisdisconnecting(so);
 913                         SCTP_TCB_UNLOCK(stcb);
 914                         SCTP_INP_RUNLOCK(inp);
 915                         return (0);
 916                 }
 917                 /* not reached */
 918         } else {
 919                 /* UDP model does not support this */
 920                 SCTP_INP_RUNLOCK(inp);
 921                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 922                 return (EOPNOTSUPP);
 923         }
 924 }
 925
 926 int
 927 sctp_flush(struct socket *so, int how)
 928 {
 929         /*
 930          * We will just clear out the values and let subsequent close clear
 931          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 932          * they will not be able to read the data, the socket will block
 933          * that from happening.
 934          */
 935         struct sctp_inpcb *inp;
 936
 937         inp = (struct sctp_inpcb *)so->so_pcb;
 938         if (inp == NULL) {
 939                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 940                 return (EINVAL);
 941         }
 942         SCTP_INP_RLOCK(inp);
 943         /* For the 1 to many model this does nothing */
 944         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 945                 SCTP_INP_RUNLOCK(inp);
 946                 return (0);
 947         }
 948         SCTP_INP_RUNLOCK(inp);
 949         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 950                 /*
 951                  * First make sure the sb will be happy, we don't use these
 952                  * except maybe the count
 953                  */
 954                 SCTP_INP_WLOCK(inp);
 955                 SCTP_INP_READ_LOCK(inp);
 956                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 957                 SCTP_INP_READ_UNLOCK(inp);
 958                 SCTP_INP_WUNLOCK(inp);
 959                 so->so_rcv.sb_cc = 0;
 960                 so->so_rcv.sb_mbcnt = 0;
 961                 so->so_rcv.sb_mb = NULL;
 962         }
 963         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 964                 /*
 965                  * First make sure the sb will be happy, we don't use these
 966                  * except maybe the count
 967                  */
 968                 so->so_snd.sb_cc = 0;
 969                 so->so_snd.sb_mbcnt = 0;
 970                 so->so_snd.sb_mb = NULL;
 971
 972         }
 973         return (0);
 974 }
 975
 976 int
 977 sctp_shutdown(struct socket *so)
 978 {
 979         struct sctp_inpcb *inp;
 980
 981         inp = (struct sctp_inpcb *)so->so_pcb;
 982         if (inp == NULL) {
 983                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 984                 return (EINVAL);
 985         }
 986         SCTP_INP_RLOCK(inp);
 987         /* For UDP model this is a invalid call */
 988         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 989                 /* Restore the flags that the soshutdown took away. */
 990                 SOCKBUF_LOCK(&so->so_rcv);
 991                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 992                 SOCKBUF_UNLOCK(&so->so_rcv);
 993                 /* This proc will wakeup for read and do nothing (I hope) */
 994                 SCTP_INP_RUNLOCK(inp);
 995                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 996                 return (EOPNOTSUPP);
 997         }
 998         /*
 999          * Ok if we reach here its the TCP model and it is either a SHUT_WR
1000          * or SHUT_RDWR. This means we put the shutdown flag against it.
1001          */
1002         {
1003                 struct sctp_tcb *stcb;
1004                 struct sctp_association *asoc;
1005
1006                 if ((so->so_state &
1007                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
1008                         SCTP_INP_RUNLOCK(inp);
1009                         return (ENOTCONN);
1010                 }
1011                 socantsendmore(so);
1012
1013                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1014                 if (stcb == NULL) {
1015                         /*
1016                          * Ok we hit the case that the shutdown call was
1017                          * made after an abort or something. Nothing to do
1018                          * now.
1019                          */
1020                         SCTP_INP_RUNLOCK(inp);
1021                         return (0);
1022                 }
1023                 SCTP_TCB_LOCK(stcb);
1024                 asoc = &stcb->asoc;
1025                 if (TAILQ_EMPTY(&asoc->send_queue) &&
1026                     TAILQ_EMPTY(&asoc->sent_queue) &&
1027                     (asoc->stream_queue_cnt == 0)) {
1028                         if (asoc->locked_on_sending) {
1029                                 goto abort_anyway;
1030                         }
1031                         /* there is nothing queued to send, so I'm done... */
1032                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1033                                 /* only send SHUTDOWN the first time through */
1034                                 struct sctp_nets *netp;
1035
1036                                 if (stcb->asoc.alternate) {
1037                                         netp = stcb->asoc.alternate;
1038                                 } else {
1039                                         netp = stcb->asoc.primary_destination;
1040                                 }
1041                                 sctp_stop_timers_for_shutdown(stcb);
1042                                 sctp_send_shutdown(stcb, netp);
1043                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1044                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1045                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1046                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1047                                 }
1048                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1049                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1050                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1051                                     stcb->sctp_ep, stcb, netp);
1052                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1053                                     stcb->sctp_ep, stcb, netp);
1054                         }
1055                 } else {
1056                         /*
1057                          * we still got (or just got) data to send, so set
1058                          * SHUTDOWN_PENDING
1059                          */
1060                         struct sctp_nets *netp;
1061
1062                         if (stcb->asoc.alternate) {
1063                                 netp = stcb->asoc.alternate;
1064                         } else {
1065                                 netp = stcb->asoc.primary_destination;
1066                         }
1067
1068                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1069                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1070                             netp);
1071
1072                         if (asoc->locked_on_sending) {
1073                                 /* Locked to send out the data */
1074                                 struct sctp_stream_queue_pending *sp;
1075
1076                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1077                                 if (sp == NULL) {
1078                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1079                                             asoc->locked_on_sending->stream_no);
1080                                 } else {
1081                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1082                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1083                                         }
1084                                 }
1085                         }
1086                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1087                             TAILQ_EMPTY(&asoc->sent_queue) &&
1088                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1089                                 struct mbuf *op_err;
1090
1091                 abort_anyway:
1092                                 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1093                                     0, M_DONTWAIT, 1, MT_DATA);
1094                                 if (op_err) {
1095                                         /* Fill in the user initiated abort */
1096                                         struct sctp_paramhdr *ph;
1097                                         uint32_t *ippp;
1098
1099                                         SCTP_BUF_LEN(op_err) =
1100                                             sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1101                                         ph = mtod(op_err,
1102                                             struct sctp_paramhdr *);
1103                                         ph->param_type = htons(
1104                                             SCTP_CAUSE_USER_INITIATED_ABT);
1105                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
1106                                         ippp = (uint32_t *) (ph + 1);
1107                                         *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1108                                 }
1109 #if defined(SCTP_PANIC_ON_ABORT)
1110                                 panic("shutdown does an abort");
1111 #endif
1112                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1113                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1114                                     SCTP_RESPONSE_TO_USER_REQ,
1115                                     op_err, SCTP_SO_LOCKED);
1116                                 goto skip_unlock;
1117                         } else {
1118                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1119                         }
1120                 }
1121                 SCTP_TCB_UNLOCK(stcb);
1122         }
1123 skip_unlock:
1124         SCTP_INP_RUNLOCK(inp);
1125         return (0);
1126 }
1127
1128 /*
1129  * copies a "user" presentable address and removes embedded scope, etc.
1130  * returns 0 on success, 1 on error
1131  */
1132 static uint32_t
1133 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1134 {
1135 #ifdef INET6
1136         struct sockaddr_in6 lsa6;
1137
1138         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1139             &lsa6);
1140 #endif
1141         memcpy(ss, sa, sa->sa_len);
1142         return (0);
1143 }
1144
1145
1146
1147 /*
1148  * NOTE: assumes addr lock is held
1149  */
1150 static size_t
1151 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1152     struct sctp_tcb *stcb,
1153     size_t limit,
1154     struct sockaddr_storage *sas,
1155     uint32_t vrf_id)
1156 {
1157         struct sctp_ifn *sctp_ifn;
1158         struct sctp_ifa *sctp_ifa;
1159         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1160         size_t actual;
1161         int ipv4_addr_legal, ipv6_addr_legal;
1162         struct sctp_vrf *vrf;
1163
1164         actual = 0;
1165         if (limit <= 0)
1166                 return (actual);
1167
1168         if (stcb) {
1169                 /* Turn on all the appropriate scope */
1170                 loopback_scope = stcb->asoc.loopback_scope;
1171                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1172                 local_scope = stcb->asoc.local_scope;
1173                 site_scope = stcb->asoc.site_scope;
1174         } else {
1175                 /* Turn on ALL scope, since we look at the EP */
1176                 loopback_scope = ipv4_local_scope = local_scope =
1177                     site_scope = 1;
1178         }
1179         ipv4_addr_legal = ipv6_addr_legal = 0;
1180         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1181                 ipv6_addr_legal = 1;
1182                 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1183                         ipv4_addr_legal = 1;
1184                 }
1185         } else {
1186                 ipv4_addr_legal = 1;
1187         }
1188         vrf = sctp_find_vrf(vrf_id);
1189         if (vrf == NULL) {
1190                 return (0);
1191         }
1192         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1193                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1194                         if ((loopback_scope == 0) &&
1195                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1196                                 /* Skip loopback if loopback_scope not set */
1197                                 continue;
1198                         }
1199                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1200                                 if (stcb) {
1201                                         /*
1202                                          * For the BOUND-ALL case, the list
1203                                          * associated with a TCB is Always
1204                                          * considered a reverse list.. i.e.
1205                                          * it lists addresses that are NOT
1206                                          * part of the association. If this
1207                                          * is one of those we must skip it.
1208                                          */
1209                                         if (sctp_is_addr_restricted(stcb,
1210                                             sctp_ifa)) {
1211                                                 continue;
1212                                         }
1213                                 }
1214                                 switch (sctp_ifa->address.sa.sa_family) {
1215 #ifdef INET
1216                                 case AF_INET:
1217                                         if (ipv4_addr_legal) {
1218                                                 struct sockaddr_in *sin;
1219
1220                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1221                                                 if (sin->sin_addr.s_addr == 0) {
1222                                                         /*
1223                                                          * we skip
1224                                                          * unspecifed
1225                                                          * addresses
1226                                                          */
1227                                                         continue;
1228                                                 }
1229                                                 if ((ipv4_local_scope == 0) &&
1230                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1231                                                         continue;
1232                                                 }
1233 #ifdef INET6
1234                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1235                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1236                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1237                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1238                                                         actual += sizeof(struct sockaddr_in6);
1239                                                 } else {
1240 #endif
1241                                                         memcpy(sas, sin, sizeof(*sin));
1242                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1243                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1244                                                         actual += sizeof(*sin);
1245 #ifdef INET6
1246                                                 }
1247 #endif
1248                                                 if (actual >= limit) {
1249                                                         return (actual);
1250                                                 }
1251                                         } else {
1252                                                 continue;
1253                                         }
1254                                         break;
1255 #endif
1256 #ifdef INET6
1257                                 case AF_INET6:
1258                                         if (ipv6_addr_legal) {
1259                                                 struct sockaddr_in6 *sin6;
1260
1261                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1262                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1263                                                         /*
1264                                                          * we skip
1265                                                          * unspecifed
1266                                                          * addresses
1267                                                          */
1268                                                         continue;
1269                                                 }
1270                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1271                                                         if (local_scope == 0)
1272                                                                 continue;
1273                                                         if (sin6->sin6_scope_id == 0) {
1274                                                                 if (sa6_recoverscope(sin6) != 0)
1275                                                                         /*
1276                                                                          *
1277                                                                          * bad
1278                                                                          *
1279                                                                          * li
1280                                                                          * nk
1281                                                                          *
1282                                                                          * loc
1283                                                                          * al
1284                                                                          *
1285                                                                          * add
1286                                                                          * re
1287                                                                          * ss
1288                                                                          * */
1289                                                                         continue;
1290                                                         }
1291                                                 }
1292                                                 if ((site_scope == 0) &&
1293                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1294                                                         continue;
1295                                                 }
1296                                                 memcpy(sas, sin6, sizeof(*sin6));
1297                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1298                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1299                                                 actual += sizeof(*sin6);
1300                                                 if (actual >= limit) {
1301                                                         return (actual);
1302                                                 }
1303                                         } else {
1304                                                 continue;
1305                                         }
1306                                         break;
1307 #endif
1308                                 default:
1309                                         /* TSNH */
1310                                         break;
1311                                 }
1312                         }
1313                 }
1314         } else {
1315                 struct sctp_laddr *laddr;
1316
1317                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1318                         if (stcb) {
1319                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1320                                         continue;
1321                                 }
1322                         }
1323                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1324                                 continue;
1325
1326                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1327                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1328                             laddr->ifa->address.sa.sa_len);
1329                         actual += laddr->ifa->address.sa.sa_len;
1330                         if (actual >= limit) {
1331                                 return (actual);
1332                         }
1333                 }
1334         }
1335         return (actual);
1336 }
1337
1338 static size_t
1339 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1340     struct sctp_tcb *stcb,
1341     size_t limit,
1342     struct sockaddr_storage *sas)
1343 {
1344         size_t size = 0;
1345
1346         SCTP_IPI_ADDR_RLOCK();
1347         /* fill up addresses for the endpoint's default vrf */
1348         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1349             inp->def_vrf_id);
1350         SCTP_IPI_ADDR_RUNLOCK();
1351         return (size);
1352 }
1353
1354 /*
1355  * NOTE: assumes addr lock is held
1356  */
1357 static int
1358 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1359 {
1360         int cnt = 0;
1361         struct sctp_vrf *vrf = NULL;
1362
1363         /*
1364          * In both sub-set bound an bound_all cases we return the MAXIMUM
1365          * number of addresses that you COULD get. In reality the sub-set
1366          * bound may have an exclusion list for a given TCB OR in the
1367          * bound-all case a TCB may NOT include the loopback or other
1368          * addresses as well.
1369          */
1370         vrf = sctp_find_vrf(vrf_id);
1371         if (vrf == NULL) {
1372                 return (0);
1373         }
1374         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1375                 struct sctp_ifn *sctp_ifn;
1376                 struct sctp_ifa *sctp_ifa;
1377
1378                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1379                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1380                                 /* Count them if they are the right type */
1381                                 switch (sctp_ifa->address.sa.sa_family) {
1382 #ifdef INET
1383                                 case AF_INET:
1384                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1385                                                 cnt += sizeof(struct sockaddr_in6);
1386                                         else
1387                                                 cnt += sizeof(struct sockaddr_in);
1388                                         break;
1389 #endif
1390 #ifdef INET6
1391                                 case AF_INET6:
1392                                         cnt += sizeof(struct sockaddr_in6);
1393                                         break;
1394 #endif
1395                                 default:
1396                                         break;
1397                                 }
1398                         }
1399                 }
1400         } else {
1401                 struct sctp_laddr *laddr;
1402
1403                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1404                         switch (laddr->ifa->address.sa.sa_family) {
1405 #ifdef INET
1406                         case AF_INET:
1407                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1408                                         cnt += sizeof(struct sockaddr_in6);
1409                                 else
1410                                         cnt += sizeof(struct sockaddr_in);
1411                                 break;
1412 #endif
1413 #ifdef INET6
1414                         case AF_INET6:
1415                                 cnt += sizeof(struct sockaddr_in6);
1416                                 break;
1417 #endif
1418                         default:
1419                                 break;
1420                         }
1421                 }
1422         }
1423         return (cnt);
1424 }
1425
1426 static int
1427 sctp_count_max_addresses(struct sctp_inpcb *inp)
1428 {
1429         int cnt = 0;
1430
1431         SCTP_IPI_ADDR_RLOCK();
1432         /* count addresses for the endpoint's default VRF */
1433         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1434         SCTP_IPI_ADDR_RUNLOCK();
1435         return (cnt);
1436 }
1437
1438 static int
1439 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1440     size_t optsize, void *p, int delay)
1441 {
1442         int error = 0;
1443         int creat_lock_on = 0;
1444         struct sctp_tcb *stcb = NULL;
1445         struct sockaddr *sa;
1446         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1447         uint32_t vrf_id;
1448         int bad_addresses = 0;
1449         sctp_assoc_t *a_id;
1450
1451         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1452
1453         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1454             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1455                 /* We are already connected AND the TCP model */
1456                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1457                 return (EADDRINUSE);
1458         }
1459         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1460             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1461                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1462                 return (EINVAL);
1463         }
1464         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1465                 SCTP_INP_RLOCK(inp);
1466                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1467                 SCTP_INP_RUNLOCK(inp);
1468         }
1469         if (stcb) {
1470                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1471                 return (EALREADY);
1472         }
1473         SCTP_INP_INCR_REF(inp);
1474         SCTP_ASOC_CREATE_LOCK(inp);
1475         creat_lock_on = 1;
1476         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1477             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1478                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1479                 error = EFAULT;
1480                 goto out_now;
1481         }
1482         totaddrp = (int *)optval;
1483         totaddr = *totaddrp;
1484         sa = (struct sockaddr *)(totaddrp + 1);
1485         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1486         if ((stcb != NULL) || bad_addresses) {
1487                 /* Already have or am bring up an association */
1488                 SCTP_ASOC_CREATE_UNLOCK(inp);
1489                 creat_lock_on = 0;
1490                 if (stcb)
1491                         SCTP_TCB_UNLOCK(stcb);
1492                 if (bad_addresses == 0) {
1493                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1494                         error = EALREADY;
1495                 }
1496                 goto out_now;
1497         }
1498 #ifdef INET6
1499         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1500             (num_v6 > 0)) {
1501                 error = EINVAL;
1502                 goto out_now;
1503         }
1504         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1505             (num_v4 > 0)) {
1506                 struct in6pcb *inp6;
1507
1508                 inp6 = (struct in6pcb *)inp;
1509                 if (SCTP_IPV6_V6ONLY(inp6)) {
1510                         /*
1511                          * if IPV6_V6ONLY flag, ignore connections destined
1512                          * to a v4 addr or v4-mapped addr
1513                          */
1514                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1515                         error = EINVAL;
1516                         goto out_now;
1517                 }
1518         }
1519 #endif                          /* INET6 */
1520         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1521             SCTP_PCB_FLAGS_UNBOUND) {
1522                 /* Bind a ephemeral port */
1523                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1524                 if (error) {
1525                         goto out_now;
1526                 }
1527         }
1528         /* FIX ME: do we want to pass in a vrf on the connect call? */
1529         vrf_id = inp->def_vrf_id;
1530
1531
1532         /* We are GOOD to go */
1533         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1534             (struct thread *)p
1535             );
1536         if (stcb == NULL) {
1537                 /* Gak! no memory */
1538                 goto out_now;
1539         }
1540         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1541                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1542                 /* Set the connected flag so we can queue data */
1543                 soisconnecting(so);
1544         }
1545         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1546         /* move to second address */
1547         switch (sa->sa_family) {
1548 #ifdef INET
1549         case AF_INET:
1550                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1551                 break;
1552 #endif
1553 #ifdef INET6
1554         case AF_INET6:
1555                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1556                 break;
1557 #endif
1558         default:
1559                 break;
1560         }
1561
1562         error = 0;
1563         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1564         /* Fill in the return id */
1565         if (error) {
1566                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1567                 goto out_now;
1568         }
1569         a_id = (sctp_assoc_t *) optval;
1570         *a_id = sctp_get_associd(stcb);
1571
1572         /* initialize authentication parameters for the assoc */
1573         sctp_initialize_auth_params(inp, stcb);
1574
1575         if (delay) {
1576                 /* doing delayed connection */
1577                 stcb->asoc.delayed_connection = 1;
1578                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1579         } else {
1580                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1581                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1582         }
1583         SCTP_TCB_UNLOCK(stcb);
1584         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1585                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1586                 /* Set the connected flag so we can queue data */
1587                 soisconnecting(so);
1588         }
1589 out_now:
1590         if (creat_lock_on) {
1591                 SCTP_ASOC_CREATE_UNLOCK(inp);
1592         }
1593         SCTP_INP_DECR_REF(inp);
1594         return (error);
1595 }
1596
1597 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1598         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1599             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1600                 SCTP_INP_RLOCK(inp); \
1601                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1602                 if (stcb) { \
1603                         SCTP_TCB_LOCK(stcb); \
1604                 } \
1605                 SCTP_INP_RUNLOCK(inp); \
1606         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1607                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1608                 if (stcb == NULL) { \
1609                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1610                         error = ENOENT; \
1611                         break; \
1612                 } \
1613         } else { \
1614                 stcb = NULL; \
1615         } \
1616   }
1617
1618
1619 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1620         if (size < sizeof(type)) { \
1621                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1622                 error = EINVAL; \
1623                 break; \
1624         } else { \
1625                 destp = (type *)srcp; \
1626         } \
1627       }
1628
1629 static int
1630 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1631     void *p)
1632 {
1633         struct sctp_inpcb *inp = NULL;
1634         int error, val = 0;
1635         struct sctp_tcb *stcb = NULL;
1636
1637         if (optval == NULL) {
1638                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1639                 return (EINVAL);
1640         }
1641         inp = (struct sctp_inpcb *)so->so_pcb;
1642         if (inp == NULL) {
1643                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1644                 return EINVAL;
1645         }
1646         error = 0;
1647
1648         switch (optname) {
1649         case SCTP_NODELAY:
1650         case SCTP_AUTOCLOSE:
1651         case SCTP_EXPLICIT_EOR:
1652         case SCTP_AUTO_ASCONF:
1653         case SCTP_DISABLE_FRAGMENTS:
1654         case SCTP_I_WANT_MAPPED_V4_ADDR:
1655         case SCTP_USE_EXT_RCVINFO:
1656                 SCTP_INP_RLOCK(inp);
1657                 switch (optname) {
1658                 case SCTP_DISABLE_FRAGMENTS:
1659                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1660                         break;
1661                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1662                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1663                         break;
1664                 case SCTP_AUTO_ASCONF:
1665                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1666                                 /* only valid for bound all sockets */
1667                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1668                         } else {
1669                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1670                                 error = EINVAL;
1671                                 goto flags_out;
1672                         }
1673                         break;
1674                 case SCTP_EXPLICIT_EOR:
1675                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1676                         break;
1677                 case SCTP_NODELAY:
1678                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1679                         break;
1680                 case SCTP_USE_EXT_RCVINFO:
1681                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1682                         break;
1683                 case SCTP_AUTOCLOSE:
1684                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1685                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1686                         else
1687                                 val = 0;
1688                         break;
1689
1690                 default:
1691                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1692                         error = ENOPROTOOPT;
1693                 }               /* end switch (sopt->sopt_name) */
1694                 if (*optsize < sizeof(val)) {
1695                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1696                         error = EINVAL;
1697                 }
1698 flags_out:
1699                 SCTP_INP_RUNLOCK(inp);
1700                 if (error == 0) {
1701                         /* return the option value */
1702                         *(int *)optval = val;
1703                         *optsize = sizeof(val);
1704                 }
1705                 break;
1706         case SCTP_GET_PACKET_LOG:
1707                 {
1708 #ifdef  SCTP_PACKET_LOGGING
1709                         uint8_t *target;
1710                         int ret;
1711
1712                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1713                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1714                         *optsize = ret;
1715 #else
1716                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1717                         error = EOPNOTSUPP;
1718 #endif
1719                         break;
1720                 }
1721         case SCTP_REUSE_PORT:
1722                 {
1723                         uint32_t *value;
1724
1725                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1726                                 /* Can't do this for a 1-m socket */
1727                                 error = EINVAL;
1728                                 break;
1729                         }
1730                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1731                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1732                         *optsize = sizeof(uint32_t);
1733                         break;
1734                 }
1735         case SCTP_PARTIAL_DELIVERY_POINT:
1736                 {
1737                         uint32_t *value;
1738
1739                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1740                         *value = inp->partial_delivery_point;
1741                         *optsize = sizeof(uint32_t);
1742                         break;
1743                 }
1744         case SCTP_FRAGMENT_INTERLEAVE:
1745                 {
1746                         uint32_t *value;
1747
1748                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1749                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1750                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1751                                         *value = SCTP_FRAG_LEVEL_2;
1752                                 } else {
1753                                         *value = SCTP_FRAG_LEVEL_1;
1754                                 }
1755                         } else {
1756                                 *value = SCTP_FRAG_LEVEL_0;
1757                         }
1758                         *optsize = sizeof(uint32_t);
1759                         break;
1760                 }
1761         case SCTP_CMT_ON_OFF:
1762                 {
1763                         struct sctp_assoc_value *av;
1764
1765                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1766                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1767                         if (stcb) {
1768                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1769                                 SCTP_TCB_UNLOCK(stcb);
1770                         } else {
1771                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1772                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1773                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1774                                         SCTP_INP_RLOCK(inp);
1775                                         av->assoc_value = inp->sctp_cmt_on_off;
1776                                         SCTP_INP_RUNLOCK(inp);
1777                                 } else {
1778                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1779                                         error = EINVAL;
1780                                 }
1781                         }
1782                         if (error == 0) {
1783                                 *optsize = sizeof(struct sctp_assoc_value);
1784                         }
1785                         break;
1786                 }
1787         case SCTP_PLUGGABLE_CC:
1788                 {
1789                         struct sctp_assoc_value *av;
1790
1791                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1792                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1793                         if (stcb) {
1794                                 av->assoc_value = stcb->asoc.congestion_control_module;
1795                                 SCTP_TCB_UNLOCK(stcb);
1796                         } else {
1797                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1798                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1799                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1800                                         SCTP_INP_RLOCK(inp);
1801                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1802                                         SCTP_INP_RUNLOCK(inp);
1803                                 } else {
1804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1805                                         error = EINVAL;
1806                                 }
1807                         }
1808                         if (error == 0) {
1809                                 *optsize = sizeof(struct sctp_assoc_value);
1810                         }
1811                         break;
1812                 }
1813         case SCTP_CC_OPTION:
1814                 {
1815                         struct sctp_cc_option *cc_opt;
1816
1817                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1818                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1819                         if (stcb == NULL) {
1820                                 error = EINVAL;
1821                         } else {
1822                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1823                                         error = ENOTSUP;
1824                                 } else {
1825                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1826                                         *optsize = sizeof(struct sctp_cc_option);
1827                                 }
1828                                 SCTP_TCB_UNLOCK(stcb);
1829                         }
1830                         break;
1831                 }
1832         case SCTP_PLUGGABLE_SS:
1833                 {
1834                         struct sctp_assoc_value *av;
1835
1836                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1837                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1838                         if (stcb) {
1839                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1840                                 SCTP_TCB_UNLOCK(stcb);
1841                         } else {
1842                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1843                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1844                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1845                                         SCTP_INP_RLOCK(inp);
1846                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1847                                         SCTP_INP_RUNLOCK(inp);
1848                                 } else {
1849                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1850                                         error = EINVAL;
1851                                 }
1852                         }
1853                         if (error == 0) {
1854                                 *optsize = sizeof(struct sctp_assoc_value);
1855                         }
1856                         break;
1857                 }
1858         case SCTP_SS_VALUE:
1859                 {
1860                         struct sctp_stream_value *av;
1861
1862                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1863                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1864                         if (stcb) {
1865                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1866                                     &av->stream_value) < 0) {
1867                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1868                                         error = EINVAL;
1869                                 } else {
1870                                         *optsize = sizeof(struct sctp_stream_value);
1871                                 }
1872                                 SCTP_TCB_UNLOCK(stcb);
1873                         } else {
1874                                 /*
1875                                  * Can't get stream value without
1876                                  * association
1877                                  */
1878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1879                                 error = EINVAL;
1880                         }
1881                         break;
1882                 }
1883         case SCTP_GET_ADDR_LEN:
1884                 {
1885                         struct sctp_assoc_value *av;
1886
1887                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1888                         error = EINVAL;
1889 #ifdef INET
1890                         if (av->assoc_value == AF_INET) {
1891                                 av->assoc_value = sizeof(struct sockaddr_in);
1892                                 error = 0;
1893                         }
1894 #endif
1895 #ifdef INET6
1896                         if (av->assoc_value == AF_INET6) {
1897                                 av->assoc_value = sizeof(struct sockaddr_in6);
1898                                 error = 0;
1899                         }
1900 #endif
1901                         if (error) {
1902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1903                         } else {
1904                                 *optsize = sizeof(struct sctp_assoc_value);
1905                         }
1906                         break;
1907                 }
1908         case SCTP_GET_ASSOC_NUMBER:
1909                 {
1910                         uint32_t *value, cnt;
1911
1912                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1913                         cnt = 0;
1914                         SCTP_INP_RLOCK(inp);
1915                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1916                                 cnt++;
1917                         }
1918                         SCTP_INP_RUNLOCK(inp);
1919                         *value = cnt;
1920                         *optsize = sizeof(uint32_t);
1921                         break;
1922                 }
1923         case SCTP_GET_ASSOC_ID_LIST:
1924                 {
1925                         struct sctp_assoc_ids *ids;
1926                         unsigned int at, limit;
1927
1928                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1929                         at = 0;
1930                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1931                         SCTP_INP_RLOCK(inp);
1932                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1933                                 if (at < limit) {
1934                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1935                                 } else {
1936                                         error = EINVAL;
1937                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1938                                         break;
1939                                 }
1940                         }
1941                         SCTP_INP_RUNLOCK(inp);
1942                         if (error == 0) {
1943                                 ids->gaids_number_of_ids = at;
1944                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1945                         }
1946                         break;
1947                 }
1948         case SCTP_CONTEXT:
1949                 {
1950                         struct sctp_assoc_value *av;
1951
1952                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1953                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1954
1955                         if (stcb) {
1956                                 av->assoc_value = stcb->asoc.context;
1957                                 SCTP_TCB_UNLOCK(stcb);
1958                         } else {
1959                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1960                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1961                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1962                                         SCTP_INP_RLOCK(inp);
1963                                         av->assoc_value = inp->sctp_context;
1964                                         SCTP_INP_RUNLOCK(inp);
1965                                 } else {
1966                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1967                                         error = EINVAL;
1968                                 }
1969                         }
1970                         if (error == 0) {
1971                                 *optsize = sizeof(struct sctp_assoc_value);
1972                         }
1973                         break;
1974                 }
1975         case SCTP_VRF_ID:
1976                 {
1977                         uint32_t *default_vrfid;
1978
1979                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1980                         *default_vrfid = inp->def_vrf_id;
1981                         *optsize = sizeof(uint32_t);
1982                         break;
1983                 }
1984         case SCTP_GET_ASOC_VRF:
1985                 {
1986                         struct sctp_assoc_value *id;
1987
1988                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1989                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1990                         if (stcb == NULL) {
1991                                 error = EINVAL;
1992                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1993                         } else {
1994                                 id->assoc_value = stcb->asoc.vrf_id;
1995                                 *optsize = sizeof(struct sctp_assoc_value);
1996                         }
1997                         break;
1998                 }
1999         case SCTP_GET_VRF_IDS:
2000                 {
2001                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2002                         error = EOPNOTSUPP;
2003                         break;
2004                 }
2005         case SCTP_GET_NONCE_VALUES:
2006                 {
2007                         struct sctp_get_nonce_values *gnv;
2008
2009                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2010                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2011
2012                         if (stcb) {
2013                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2014                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2015                                 SCTP_TCB_UNLOCK(stcb);
2016                                 *optsize = sizeof(struct sctp_get_nonce_values);
2017                         } else {
2018                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2019                                 error = ENOTCONN;
2020                         }
2021                         break;
2022                 }
2023         case SCTP_DELAYED_SACK:
2024                 {
2025                         struct sctp_sack_info *sack;
2026
2027                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2028                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2029                         if (stcb) {
2030                                 sack->sack_delay = stcb->asoc.delayed_ack;
2031                                 sack->sack_freq = stcb->asoc.sack_freq;
2032                                 SCTP_TCB_UNLOCK(stcb);
2033                         } else {
2034                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2035                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2036                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2037                                         SCTP_INP_RLOCK(inp);
2038                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2039                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2040                                         SCTP_INP_RUNLOCK(inp);
2041                                 } else {
2042                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2043                                         error = EINVAL;
2044                                 }
2045                         }
2046                         if (error == 0) {
2047                                 *optsize = sizeof(struct sctp_sack_info);
2048                         }
2049                         break;
2050                 }
2051         case SCTP_GET_SNDBUF_USE:
2052                 {
2053                         struct sctp_sockstat *ss;
2054
2055                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2056                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2057
2058                         if (stcb) {
2059                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2060                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2061                                     stcb->asoc.size_on_all_streams);
2062                                 SCTP_TCB_UNLOCK(stcb);
2063                                 *optsize = sizeof(struct sctp_sockstat);
2064                         } else {
2065                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2066                                 error = ENOTCONN;
2067                         }
2068                         break;
2069                 }
2070         case SCTP_MAX_BURST:
2071                 {
2072                         struct sctp_assoc_value *av;
2073
2074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2076
2077                         if (stcb) {
2078                                 av->assoc_value = stcb->asoc.max_burst;
2079                                 SCTP_TCB_UNLOCK(stcb);
2080                         } else {
2081                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2082                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2083                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2084                                         SCTP_INP_RLOCK(inp);
2085                                         av->assoc_value = inp->sctp_ep.max_burst;
2086                                         SCTP_INP_RUNLOCK(inp);
2087                                 } else {
2088                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2089                                         error = EINVAL;
2090                                 }
2091                         }
2092                         if (error == 0) {
2093                                 *optsize = sizeof(struct sctp_assoc_value);
2094                         }
2095                         break;
2096                 }
2097         case SCTP_MAXSEG:
2098                 {
2099                         struct sctp_assoc_value *av;
2100                         int ovh;
2101
2102                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2103                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2104
2105                         if (stcb) {
2106                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2107                                 SCTP_TCB_UNLOCK(stcb);
2108                         } else {
2109                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2110                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2111                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2112                                         SCTP_INP_RLOCK(inp);
2113                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2114                                                 ovh = SCTP_MED_OVERHEAD;
2115                                         } else {
2116                                                 ovh = SCTP_MED_V4_OVERHEAD;
2117                                         }
2118                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2119                                                 av->assoc_value = 0;
2120                                         else
2121                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2122                                         SCTP_INP_RUNLOCK(inp);
2123                                 } else {
2124                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2125                                         error = EINVAL;
2126                                 }
2127                         }
2128                         if (error == 0) {
2129                                 *optsize = sizeof(struct sctp_assoc_value);
2130                         }
2131                         break;
2132                 }
2133         case SCTP_GET_STAT_LOG:
2134                 error = sctp_fill_stat_log(optval, optsize);
2135                 break;
2136         case SCTP_EVENTS:
2137                 {
2138                         struct sctp_event_subscribe *events;
2139
2140                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2141                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2142                         SCTP_INP_RLOCK(inp);
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2144                                 events->sctp_data_io_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2147                                 events->sctp_association_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2150                                 events->sctp_address_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2153                                 events->sctp_send_failure_event = 1;
2154
2155                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2156                                 events->sctp_peer_error_event = 1;
2157
2158                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2159                                 events->sctp_shutdown_event = 1;
2160
2161                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2162                                 events->sctp_partial_delivery_event = 1;
2163
2164                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2165                                 events->sctp_adaptation_layer_event = 1;
2166
2167                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2168                                 events->sctp_authentication_event = 1;
2169
2170                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2171                                 events->sctp_sender_dry_event = 1;
2172
2173                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2174                                 events->sctp_stream_reset_event = 1;
2175                         SCTP_INP_RUNLOCK(inp);
2176                         *optsize = sizeof(struct sctp_event_subscribe);
2177                         break;
2178                 }
2179         case SCTP_ADAPTATION_LAYER:
2180                 {
2181                         uint32_t *value;
2182
2183                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2184
2185                         SCTP_INP_RLOCK(inp);
2186                         *value = inp->sctp_ep.adaptation_layer_indicator;
2187                         SCTP_INP_RUNLOCK(inp);
2188                         *optsize = sizeof(uint32_t);
2189                         break;
2190                 }
2191         case SCTP_SET_INITIAL_DBG_SEQ:
2192                 {
2193                         uint32_t *value;
2194
2195                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2196                         SCTP_INP_RLOCK(inp);
2197                         *value = inp->sctp_ep.initial_sequence_debug;
2198                         SCTP_INP_RUNLOCK(inp);
2199                         *optsize = sizeof(uint32_t);
2200                         break;
2201                 }
2202         case SCTP_GET_LOCAL_ADDR_SIZE:
2203                 {
2204                         uint32_t *value;
2205
2206                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2207                         SCTP_INP_RLOCK(inp);
2208                         *value = sctp_count_max_addresses(inp);
2209                         SCTP_INP_RUNLOCK(inp);
2210                         *optsize = sizeof(uint32_t);
2211                         break;
2212                 }
2213         case SCTP_GET_REMOTE_ADDR_SIZE:
2214                 {
2215                         uint32_t *value;
2216                         size_t size;
2217                         struct sctp_nets *net;
2218
2219                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2220                         /* FIXME MT: change to sctp_assoc_value? */
2221                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2222
2223                         if (stcb) {
2224                                 size = 0;
2225                                 /* Count the sizes */
2226                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2227                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2228                                                 size += sizeof(struct sockaddr_in6);
2229                                         } else {
2230                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2231 #ifdef INET
2232                                                 case AF_INET:
2233                                                         size += sizeof(struct sockaddr_in);
2234                                                         break;
2235 #endif
2236 #ifdef INET6
2237                                                 case AF_INET6:
2238                                                         size += sizeof(struct sockaddr_in6);
2239                                                         break;
2240 #endif
2241                                                 default:
2242                                                         break;
2243                                                 }
2244                                         }
2245                                 }
2246                                 SCTP_TCB_UNLOCK(stcb);
2247                                 *value = (uint32_t) size;
2248                                 *optsize = sizeof(uint32_t);
2249                         } else {
2250                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2251                                 error = ENOTCONN;
2252                         }
2253                         break;
2254                 }
2255         case SCTP_GET_PEER_ADDRESSES:
2256                 /*
2257                  * Get the address information, an array is passed in to
2258                  * fill up we pack it.
2259                  */
2260                 {
2261                         size_t cpsz, left;
2262                         struct sockaddr_storage *sas;
2263                         struct sctp_nets *net;
2264                         struct sctp_getaddresses *saddr;
2265
2266                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2267                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2268
2269                         if (stcb) {
2270                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2271                                 *optsize = sizeof(struct sctp_getaddresses);
2272                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2273
2274                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2275                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2276                                                 cpsz = sizeof(struct sockaddr_in6);
2277                                         } else {
2278                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2279 #ifdef INET
2280                                                 case AF_INET:
2281                                                         cpsz = sizeof(struct sockaddr_in);
2282                                                         break;
2283 #endif
2284 #ifdef INET6
2285                                                 case AF_INET6:
2286                                                         cpsz = sizeof(struct sockaddr_in6);
2287                                                         break;
2288 #endif
2289                                                 default:
2290                                                         cpsz = 0;
2291                                                         break;
2292                                                 }
2293                                         }
2294                                         if (cpsz == 0) {
2295                                                 break;
2296                                         }
2297                                         if (left < cpsz) {
2298                                                 /* not enough room. */
2299                                                 break;
2300                                         }
2301 #if defined(INET) && defined(INET6)
2302                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2303                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2304                                                 /* Must map the address */
2305                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2306                                                     (struct sockaddr_in6 *)sas);
2307                                         } else {
2308 #endif
2309                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2310 #if defined(INET) && defined(INET6)
2311                                         }
2312 #endif
2313                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2314
2315                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2316                                         left -= cpsz;
2317                                         *optsize += cpsz;
2318                                 }
2319                                 SCTP_TCB_UNLOCK(stcb);
2320                         } else {
2321                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2322                                 error = ENOENT;
2323                         }
2324                         break;
2325                 }
2326         case SCTP_GET_LOCAL_ADDRESSES:
2327                 {
2328                         size_t limit, actual;
2329                         struct sockaddr_storage *sas;
2330                         struct sctp_getaddresses *saddr;
2331
2332                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2333                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2334
2335                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2336                         limit = *optsize - sizeof(sctp_assoc_t);
2337                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2338                         if (stcb) {
2339                                 SCTP_TCB_UNLOCK(stcb);
2340                         }
2341                         *optsize = sizeof(struct sockaddr_storage) + actual;
2342                         break;
2343                 }
2344         case SCTP_PEER_ADDR_PARAMS:
2345                 {
2346                         struct sctp_paddrparams *paddrp;
2347                         struct sctp_nets *net;
2348
2349                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2350                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2351
2352                         net = NULL;
2353                         if (stcb) {
2354                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2355                         } else {
2356                                 /*
2357                                  * We increment here since
2358                                  * sctp_findassociation_ep_addr() wil do a
2359                                  * decrement if it finds the stcb as long as
2360                                  * the locked tcb (last argument) is NOT a
2361                                  * TCB.. aka NULL.
2362                                  */
2363                                 SCTP_INP_INCR_REF(inp);
2364                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2365                                 if (stcb == NULL) {
2366                                         SCTP_INP_DECR_REF(inp);
2367                                 }
2368                         }
2369                         if (stcb && (net == NULL)) {
2370                                 struct sockaddr *sa;
2371
2372                                 sa = (struct sockaddr *)&paddrp->spp_address;
2373 #ifdef INET
2374                                 if (sa->sa_family == AF_INET) {
2375                                         struct sockaddr_in *sin;
2376
2377                                         sin = (struct sockaddr_in *)sa;
2378                                         if (sin->sin_addr.s_addr) {
2379                                                 error = EINVAL;
2380                                                 SCTP_TCB_UNLOCK(stcb);
2381                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2382                                                 break;
2383                                         }
2384                                 } else
2385 #endif
2386 #ifdef INET6
2387                                 if (sa->sa_family == AF_INET6) {
2388                                         struct sockaddr_in6 *sin6;
2389
2390                                         sin6 = (struct sockaddr_in6 *)sa;
2391                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2392                                                 error = EINVAL;
2393                                                 SCTP_TCB_UNLOCK(stcb);
2394                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2395                                                 break;
2396                                         }
2397                                 } else
2398 #endif
2399                                 {
2400                                         error = EAFNOSUPPORT;
2401                                         SCTP_TCB_UNLOCK(stcb);
2402                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2403                                         break;
2404                                 }
2405                         }
2406                         if (stcb) {
2407                                 /* Applies to the specific association */
2408                                 paddrp->spp_flags = 0;
2409                                 if (net) {
2410                                         int ovh;
2411
2412                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2413                                                 ovh = SCTP_MED_OVERHEAD;
2414                                         } else {
2415                                                 ovh = SCTP_MED_V4_OVERHEAD;
2416                                         }
2417
2418                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2419                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2420                                         paddrp->spp_pathmtu = net->mtu - ovh;
2421                                         /* get flags for HB */
2422                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2423                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2424                                         } else {
2425                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2426                                         }
2427                                         /* get flags for PMTU */
2428                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2429                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2430                                         } else {
2431                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2432                                         }
2433                                         if (net->dscp & 0x01) {
2434                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2435                                                 paddrp->spp_flags |= SPP_DSCP;
2436                                         }
2437 #ifdef INET6
2438                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2439                                             (net->flowlabel & 0x80000000)) {
2440                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2441                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2442                                         }
2443 #endif
2444                                 } else {
2445                                         /*
2446                                          * No destination so return default
2447                                          * value
2448                                          */
2449                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2450                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2451                                         if (stcb->asoc.default_dscp & 0x01) {
2452                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2453                                                 paddrp->spp_flags |= SPP_DSCP;
2454                                         }
2455 #ifdef INET6
2456                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2457                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2458                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2459                                         }
2460 #endif
2461                                         /* default settings should be these */
2462                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2463                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2464                                         } else {
2465                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2466                                         }
2467                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2468                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2469                                         } else {
2470                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2471                                         }
2472                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2473                                 }
2474                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2475                                 SCTP_TCB_UNLOCK(stcb);
2476                         } else {
2477                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2478                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2479                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2480                                         /* Use endpoint defaults */
2481                                         SCTP_INP_RLOCK(inp);
2482                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2483                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2484                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2485                                         /* get inp's default */
2486                                         if (inp->sctp_ep.default_dscp & 0x01) {
2487                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2488                                                 paddrp->spp_flags |= SPP_DSCP;
2489                                         }
2490 #ifdef INET6
2491                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2492                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2493                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2494                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2495                                         }
2496 #endif
2497                                         /* can't return this */
2498                                         paddrp->spp_pathmtu = 0;
2499
2500                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2504                                         }
2505                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2509                                         }
2510                                         SCTP_INP_RUNLOCK(inp);
2511                                 } else {
2512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2513                                         error = EINVAL;
2514                                 }
2515                         }
2516                         if (error == 0) {
2517                                 *optsize = sizeof(struct sctp_paddrparams);
2518                         }
2519                         break;
2520                 }
2521         case SCTP_GET_PEER_ADDR_INFO:
2522                 {
2523                         struct sctp_paddrinfo *paddri;
2524                         struct sctp_nets *net;
2525
2526                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2527                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2528
2529                         net = NULL;
2530                         if (stcb) {
2531                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2532                         } else {
2533                                 /*
2534                                  * We increment here since
2535                                  * sctp_findassociation_ep_addr() wil do a
2536                                  * decrement if it finds the stcb as long as
2537                                  * the locked tcb (last argument) is NOT a
2538                                  * TCB.. aka NULL.
2539                                  */
2540                                 SCTP_INP_INCR_REF(inp);
2541                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2542                                 if (stcb == NULL) {
2543                                         SCTP_INP_DECR_REF(inp);
2544                                 }
2545                         }
2546
2547                         if ((stcb) && (net)) {
2548                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2549                                         /* It's unconfirmed */
2550                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2551                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2552                                         /* It's active */
2553                                         paddri->spinfo_state = SCTP_ACTIVE;
2554                                 } else {
2555                                         /* It's inactive */
2556                                         paddri->spinfo_state = SCTP_INACTIVE;
2557                                 }
2558                                 paddri->spinfo_cwnd = net->cwnd;
2559                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2560                                 paddri->spinfo_rto = net->RTO;
2561                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2562                                 paddri->spinfo_mtu = net->mtu;
2563                                 SCTP_TCB_UNLOCK(stcb);
2564                                 *optsize = sizeof(struct sctp_paddrinfo);
2565                         } else {
2566                                 if (stcb) {
2567                                         SCTP_TCB_UNLOCK(stcb);
2568                                 }
2569                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2570                                 error = ENOENT;
2571                         }
2572                         break;
2573                 }
2574         case SCTP_PCB_STATUS:
2575                 {
2576                         struct sctp_pcbinfo *spcb;
2577
2578                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2579                         sctp_fill_pcbinfo(spcb);
2580                         *optsize = sizeof(struct sctp_pcbinfo);
2581                         break;
2582                 }
2583         case SCTP_STATUS:
2584                 {
2585                         struct sctp_nets *net;
2586                         struct sctp_status *sstat;
2587
2588                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2589                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2590
2591                         if (stcb == NULL) {
2592                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2593                                 error = EINVAL;
2594                                 break;
2595                         }
2596                         /*
2597                          * I think passing the state is fine since
2598                          * sctp_constants.h will be available to the user
2599                          * land.
2600                          */
2601                         sstat->sstat_state = stcb->asoc.state;
2602                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2603                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2604                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2605                         /*
2606                          * We can't include chunks that have been passed to
2607                          * the socket layer. Only things in queue.
2608                          */
2609                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2610                             stcb->asoc.cnt_on_all_streams);
2611
2612
2613                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2614                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2615                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2616                         memcpy(&sstat->sstat_primary.spinfo_address,
2617                             &stcb->asoc.primary_destination->ro._l_addr,
2618                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2619                         net = stcb->asoc.primary_destination;
2620                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2621                         /*
2622                          * Again the user can get info from sctp_constants.h
2623                          * for what the state of the network is.
2624                          */
2625                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2626                                 /* It's unconfirmed */
2627                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2628                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2629                                 /* It's active */
2630                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2631                         } else {
2632                                 /* It's inactive */
2633                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2634                         }
2635                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2636                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2637                         sstat->sstat_primary.spinfo_rto = net->RTO;
2638                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2639                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2640                         SCTP_TCB_UNLOCK(stcb);
2641                         *optsize = sizeof(struct sctp_status);
2642                         break;
2643                 }
2644         case SCTP_RTOINFO:
2645                 {
2646                         struct sctp_rtoinfo *srto;
2647
2648                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2649                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2650
2651                         if (stcb) {
2652                                 srto->srto_initial = stcb->asoc.initial_rto;
2653                                 srto->srto_max = stcb->asoc.maxrto;
2654                                 srto->srto_min = stcb->asoc.minrto;
2655                                 SCTP_TCB_UNLOCK(stcb);
2656                         } else {
2657                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2658                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2659                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2660                                         SCTP_INP_RLOCK(inp);
2661                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2662                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2663                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2664                                         SCTP_INP_RUNLOCK(inp);
2665                                 } else {
2666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2667                                         error = EINVAL;
2668                                 }
2669                         }
2670                         if (error == 0) {
2671                                 *optsize = sizeof(struct sctp_rtoinfo);
2672                         }
2673                         break;
2674                 }
2675         case SCTP_TIMEOUTS:
2676                 {
2677                         struct sctp_timeouts *stimo;
2678
2679                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2680                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2681
2682                         if (stcb) {
2683                                 stimo->stimo_init = stcb->asoc.timoinit;
2684                                 stimo->stimo_data = stcb->asoc.timodata;
2685                                 stimo->stimo_sack = stcb->asoc.timosack;
2686                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2687                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2688                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2689                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2690                                 SCTP_TCB_UNLOCK(stcb);
2691                                 *optsize = sizeof(struct sctp_timeouts);
2692                         } else {
2693                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2694                                 error = EINVAL;
2695                         }
2696                         break;
2697                 }
2698         case SCTP_ASSOCINFO:
2699                 {
2700                         struct sctp_assocparams *sasoc;
2701
2702                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2703                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2704
2705                         if (stcb) {
2706                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2707                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2708                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2709                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2710                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2711                                 SCTP_TCB_UNLOCK(stcb);
2712                         } else {
2713                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2714                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2715                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2716                                         SCTP_INP_RLOCK(inp);
2717                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2718                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2719                                         sasoc->sasoc_number_peer_destinations = 0;
2720                                         sasoc->sasoc_peer_rwnd = 0;
2721                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2722                                         SCTP_INP_RUNLOCK(inp);
2723                                 } else {
2724                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2725                                         error = EINVAL;
2726                                 }
2727                         }
2728                         if (error == 0) {
2729                                 *optsize = sizeof(struct sctp_assocparams);
2730                         }
2731                         break;
2732                 }
2733         case SCTP_DEFAULT_SEND_PARAM:
2734                 {
2735                         struct sctp_sndrcvinfo *s_info;
2736
2737                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2738                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2739
2740                         if (stcb) {
2741                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2742                                 SCTP_TCB_UNLOCK(stcb);
2743                         } else {
2744                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2745                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2746                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2747                                         SCTP_INP_RLOCK(inp);
2748                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2749                                         SCTP_INP_RUNLOCK(inp);
2750                                 } else {
2751                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2752                                         error = EINVAL;
2753                                 }
2754                         }
2755                         if (error == 0) {
2756                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2757                         }
2758                         break;
2759                 }
2760         case SCTP_INITMSG:
2761                 {
2762                         struct sctp_initmsg *sinit;
2763
2764                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2765                         SCTP_INP_RLOCK(inp);
2766                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2767                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2768                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2769                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2770                         SCTP_INP_RUNLOCK(inp);
2771                         *optsize = sizeof(struct sctp_initmsg);
2772                         break;
2773                 }
2774         case SCTP_PRIMARY_ADDR:
2775                 /* we allow a "get" operation on this */
2776                 {
2777                         struct sctp_setprim *ssp;
2778
2779                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2780                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2781
2782                         if (stcb) {
2783                                 /* simply copy out the sockaddr_storage... */
2784                                 int len;
2785
2786                                 len = *optsize;
2787                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2788                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2789
2790                                 memcpy(&ssp->ssp_addr,
2791                                     &stcb->asoc.primary_destination->ro._l_addr,
2792                                     len);
2793                                 SCTP_TCB_UNLOCK(stcb);
2794                                 *optsize = sizeof(struct sctp_setprim);
2795                         } else {
2796                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2797                                 error = EINVAL;
2798                         }
2799                         break;
2800                 }
2801         case SCTP_HMAC_IDENT:
2802                 {
2803                         struct sctp_hmacalgo *shmac;
2804                         sctp_hmaclist_t *hmaclist;
2805                         uint32_t size;
2806                         int i;
2807
2808                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2809
2810                         SCTP_INP_RLOCK(inp);
2811                         hmaclist = inp->sctp_ep.local_hmacs;
2812                         if (hmaclist == NULL) {
2813                                 /* no HMACs to return */
2814                                 *optsize = sizeof(*shmac);
2815                                 SCTP_INP_RUNLOCK(inp);
2816                                 break;
2817                         }
2818                         /* is there room for all of the hmac ids? */
2819                         size = sizeof(*shmac) + (hmaclist->num_algo *
2820                             sizeof(shmac->shmac_idents[0]));
2821                         if ((size_t)(*optsize) < size) {
2822                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2823                                 error = EINVAL;
2824                                 SCTP_INP_RUNLOCK(inp);
2825                                 break;
2826                         }
2827                         /* copy in the list */
2828                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2829                         for (i = 0; i < hmaclist->num_algo; i++) {
2830                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2831                         }
2832                         SCTP_INP_RUNLOCK(inp);
2833                         *optsize = size;
2834                         break;
2835                 }
2836         case SCTP_AUTH_ACTIVE_KEY:
2837                 {
2838                         struct sctp_authkeyid *scact;
2839
2840                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2841                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2842
2843                         if (stcb) {
2844                                 /* get the active key on the assoc */
2845                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2846                                 SCTP_TCB_UNLOCK(stcb);
2847                         } else {
2848                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2849                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2850                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2851                                         /* get the endpoint active key */
2852                                         SCTP_INP_RLOCK(inp);
2853                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2854                                         SCTP_INP_RUNLOCK(inp);
2855                                 } else {
2856                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2857                                         error = EINVAL;
2858                                 }
2859                         }
2860                         if (error == 0) {
2861                                 *optsize = sizeof(struct sctp_authkeyid);
2862                         }
2863                         break;
2864                 }
2865         case SCTP_LOCAL_AUTH_CHUNKS:
2866                 {
2867                         struct sctp_authchunks *sac;
2868                         sctp_auth_chklist_t *chklist = NULL;
2869                         size_t size = 0;
2870
2871                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2872                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2873
2874                         if (stcb) {
2875                                 /* get off the assoc */
2876                                 chklist = stcb->asoc.local_auth_chunks;
2877                                 /* is there enough space? */
2878                                 size = sctp_auth_get_chklist_size(chklist);
2879                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2880                                         error = EINVAL;
2881                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2882                                 } else {
2883                                         /* copy in the chunks */
2884                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2885                                         *optsize = sizeof(struct sctp_authchunks) + size;
2886                                 }
2887                                 SCTP_TCB_UNLOCK(stcb);
2888                         } else {
2889                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2890                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2891                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2892                                         /* get off the endpoint */
2893                                         SCTP_INP_RLOCK(inp);
2894                                         chklist = inp->sctp_ep.local_auth_chunks;
2895                                         /* is there enough space? */
2896                                         size = sctp_auth_get_chklist_size(chklist);
2897                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2898                                                 error = EINVAL;
2899                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2900                                         } else {
2901                                                 /* copy in the chunks */
2902                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2903                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2904                                         }
2905                                         SCTP_INP_RUNLOCK(inp);
2906                                 } else {
2907                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2908                                         error = EINVAL;
2909                                 }
2910                         }
2911                         break;
2912                 }
2913         case SCTP_PEER_AUTH_CHUNKS:
2914                 {
2915                         struct sctp_authchunks *sac;
2916                         sctp_auth_chklist_t *chklist = NULL;
2917                         size_t size = 0;
2918
2919                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2920                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2921
2922                         if (stcb) {
2923                                 /* get off the assoc */
2924                                 chklist = stcb->asoc.peer_auth_chunks;
2925                                 /* is there enough space? */
2926                                 size = sctp_auth_get_chklist_size(chklist);
2927                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2928                                         error = EINVAL;
2929                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2930                                 } else {
2931                                         /* copy in the chunks */
2932                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2933                                         *optsize = sizeof(struct sctp_authchunks) + size;
2934                                 }
2935                                 SCTP_TCB_UNLOCK(stcb);
2936                         } else {
2937                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2938                                 error = ENOENT;
2939                         }
2940                         break;
2941                 }
2942         case SCTP_EVENT:
2943                 {
2944                         struct sctp_event *event;
2945                         uint32_t event_type;
2946
2947                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2948                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2949
2950                         switch (event->se_type) {
2951                         case SCTP_ASSOC_CHANGE:
2952                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2953                                 break;
2954                         case SCTP_PEER_ADDR_CHANGE:
2955                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2956                                 break;
2957                         case SCTP_REMOTE_ERROR:
2958                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2959                                 break;
2960                         case SCTP_SEND_FAILED:
2961                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2962                                 break;
2963                         case SCTP_SHUTDOWN_EVENT:
2964                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2965                                 break;
2966                         case SCTP_ADAPTATION_INDICATION:
2967                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2968                                 break;
2969                         case SCTP_PARTIAL_DELIVERY_EVENT:
2970                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2971                                 break;
2972                         case SCTP_AUTHENTICATION_EVENT:
2973                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2974                                 break;
2975                         case SCTP_STREAM_RESET_EVENT:
2976                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2977                                 break;
2978                         case SCTP_SENDER_DRY_EVENT:
2979                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2980                                 break;
2981                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2982                                 event_type = 0;
2983                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2984                                 error = ENOTSUP;
2985                                 break;
2986                         default:
2987                                 event_type = 0;
2988                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2989                                 error = EINVAL;
2990                                 break;
2991                         }
2992                         if (event_type > 0) {
2993                                 if (stcb) {
2994                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
2995                                         SCTP_TCB_UNLOCK(stcb);
2996                                 } else {
2997                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2998                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2999                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3000                                                 SCTP_INP_RLOCK(inp);
3001                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3002                                                 SCTP_INP_RUNLOCK(inp);
3003                                         } else {
3004                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3005                                                 error = EINVAL;
3006                                         }
3007                                 }
3008                         }
3009                         if (error == 0) {
3010                                 *optsize = sizeof(struct sctp_event);
3011                         }
3012                         break;
3013                 }
3014         case SCTP_RECVRCVINFO:
3015                 {
3016                         int onoff;
3017
3018                         if (*optsize < sizeof(int)) {
3019                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3020                                 error = EINVAL;
3021                         } else {
3022                                 SCTP_INP_RLOCK(inp);
3023                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3024                                 SCTP_INP_RUNLOCK(inp);
3025                         }
3026                         if (error == 0) {
3027                                 /* return the option value */
3028                                 *(int *)optval = onoff;
3029                                 *optsize = sizeof(int);
3030                         }
3031                         break;
3032                 }
3033         case SCTP_RECVNXTINFO:
3034                 {
3035                         int onoff;
3036
3037                         if (*optsize < sizeof(int)) {
3038                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3039                                 error = EINVAL;
3040                         } else {
3041                                 SCTP_INP_RLOCK(inp);
3042                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3043                                 SCTP_INP_RUNLOCK(inp);
3044                         }
3045                         if (error == 0) {
3046                                 /* return the option value */
3047                                 *(int *)optval = onoff;
3048                                 *optsize = sizeof(int);
3049                         }
3050                         break;
3051                 }
3052         case SCTP_DEFAULT_SNDINFO:
3053                 {
3054                         struct sctp_sndinfo *info;
3055
3056                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3057                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3058
3059                         if (stcb) {
3060                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3061                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3062                                 info->snd_flags &= 0xfff0;
3063                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3064                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3065                                 SCTP_TCB_UNLOCK(stcb);
3066                         } else {
3067                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3068                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3069                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3070                                         SCTP_INP_RLOCK(inp);
3071                                         info->snd_sid = inp->def_send.sinfo_stream;
3072                                         info->snd_flags = inp->def_send.sinfo_flags;
3073                                         info->snd_flags &= 0xfff0;
3074                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3075                                         info->snd_context = inp->def_send.sinfo_context;
3076                                         SCTP_INP_RUNLOCK(inp);
3077                                 } else {
3078                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3079                                         error = EINVAL;
3080                                 }
3081                         }
3082                         if (error == 0) {
3083                                 *optsize = sizeof(struct sctp_sndinfo);
3084                         }
3085                         break;
3086                 }
3087         case SCTP_DEFAULT_PRINFO:
3088                 {
3089                         struct sctp_default_prinfo *info;
3090
3091                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3092                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3093
3094                         if (stcb) {
3095                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3096                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3097                                 SCTP_TCB_UNLOCK(stcb);
3098                         } else {
3099                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3100                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3101                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3102                                         SCTP_INP_RLOCK(inp);
3103                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3104                                         info->pr_value = inp->def_send.sinfo_timetolive;
3105                                         SCTP_INP_RUNLOCK(inp);
3106                                 } else {
3107                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3108                                         error = EINVAL;
3109                                 }
3110                         }
3111                         if (error == 0) {
3112                                 *optsize = sizeof(struct sctp_default_prinfo);
3113                         }
3114                         break;
3115                 }
3116         case SCTP_PEER_ADDR_THLDS:
3117                 {
3118                         struct sctp_paddrthlds *thlds;
3119                         struct sctp_nets *net;
3120
3121                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3122                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3123
3124                         net = NULL;
3125                         if (stcb) {
3126                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3127                         } else {
3128                                 /*
3129                                  * We increment here since
3130                                  * sctp_findassociation_ep_addr() wil do a
3131                                  * decrement if it finds the stcb as long as
3132                                  * the locked tcb (last argument) is NOT a
3133                                  * TCB.. aka NULL.
3134                                  */
3135                                 SCTP_INP_INCR_REF(inp);
3136                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3137                                 if (stcb == NULL) {
3138                                         SCTP_INP_DECR_REF(inp);
3139                                 }
3140                         }
3141                         if (stcb && (net == NULL)) {
3142                                 struct sockaddr *sa;
3143
3144                                 sa = (struct sockaddr *)&thlds->spt_address;
3145 #ifdef INET
3146                                 if (sa->sa_family == AF_INET) {
3147                                         struct sockaddr_in *sin;
3148
3149                                         sin = (struct sockaddr_in *)sa;
3150                                         if (sin->sin_addr.s_addr) {
3151                                                 error = EINVAL;
3152                                                 SCTP_TCB_UNLOCK(stcb);
3153                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3154                                                 break;
3155                                         }
3156                                 } else
3157 #endif
3158 #ifdef INET6
3159                                 if (sa->sa_family == AF_INET6) {
3160                                         struct sockaddr_in6 *sin6;
3161
3162                                         sin6 = (struct sockaddr_in6 *)sa;
3163                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3164                                                 error = EINVAL;
3165                                                 SCTP_TCB_UNLOCK(stcb);
3166                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3167                                                 break;
3168                                         }
3169                                 } else
3170 #endif
3171                                 {
3172                                         error = EAFNOSUPPORT;
3173                                         SCTP_TCB_UNLOCK(stcb);
3174                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3175                                         break;
3176                                 }
3177                         }
3178                         if (stcb) {
3179                                 if (net) {
3180                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3181                                         thlds->spt_pathpfthld = net->pf_threshold;
3182                                 } else {
3183                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3184                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3185                                 }
3186                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3187                                 SCTP_TCB_UNLOCK(stcb);
3188                         } else {
3189                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3190                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3191                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3192                                         /* Use endpoint defaults */
3193                                         SCTP_INP_RLOCK(inp);
3194                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3195                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3196                                         SCTP_INP_RUNLOCK(inp);
3197                                 } else {
3198                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3199                                         error = EINVAL;
3200                                 }
3201                         }
3202                         if (error == 0) {
3203                                 *optsize = sizeof(struct sctp_paddrthlds);
3204                         }
3205                         break;
3206                 }
3207         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3208                 {
3209                         struct sctp_udpencaps *encaps;
3210                         struct sctp_nets *net;
3211
3212                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3213                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3214
3215                         if (stcb) {
3216                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
3217                         } else {
3218                                 /*
3219                                  * We increment here since
3220                                  * sctp_findassociation_ep_addr() wil do a
3221                                  * decrement if it finds the stcb as long as
3222                                  * the locked tcb (last argument) is NOT a
3223                                  * TCB.. aka NULL.
3224                                  */
3225                                 net = NULL;
3226                                 SCTP_INP_INCR_REF(inp);
3227                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
3228                                 if (stcb == NULL) {
3229                                         SCTP_INP_DECR_REF(inp);
3230                                 }
3231                         }
3232                         if (stcb && (net == NULL)) {
3233                                 struct sockaddr *sa;
3234
3235                                 sa = (struct sockaddr *)&encaps->sue_address;
3236 #ifdef INET
3237                                 if (sa->sa_family == AF_INET) {
3238                                         struct sockaddr_in *sin;
3239
3240                                         sin = (struct sockaddr_in *)sa;
3241                                         if (sin->sin_addr.s_addr) {
3242                                                 error = EINVAL;
3243                                                 SCTP_TCB_UNLOCK(stcb);
3244                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3245                                                 break;
3246                                         }
3247                                 } else
3248 #endif
3249 #ifdef INET6
3250                                 if (sa->sa_family == AF_INET6) {
3251                                         struct sockaddr_in6 *sin6;
3252
3253                                         sin6 = (struct sockaddr_in6 *)sa;
3254                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3255                                                 error = EINVAL;
3256                                                 SCTP_TCB_UNLOCK(stcb);
3257                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3258                                                 break;
3259                                         }
3260                                 } else
3261 #endif
3262                                 {
3263                                         error = EAFNOSUPPORT;
3264                                         SCTP_TCB_UNLOCK(stcb);
3265                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3266                                         break;
3267                                 }
3268                         }
3269                         if (stcb) {
3270                                 if (net) {
3271                                         encaps->sue_port = net->port;
3272                                 } else {
3273                                         encaps->sue_port = stcb->asoc.port;
3274                                 }
3275                                 SCTP_TCB_UNLOCK(stcb);
3276                         } else {
3277                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3278                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3279                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3280                                         SCTP_INP_RLOCK(inp);
3281                                         encaps->sue_port = inp->sctp_ep.port;
3282                                         SCTP_INP_RUNLOCK(inp);
3283                                 } else {
3284                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3285                                         error = EINVAL;
3286                                 }
3287                         }
3288                         if (error == 0) {
3289                                 *optsize = sizeof(struct sctp_paddrparams);
3290                         }
3291                         break;
3292                 }
3293         default:
3294                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3295                 error = ENOPROTOOPT;
3296                 break;
3297         }                       /* end switch (sopt->sopt_name) */
3298         if (error) {
3299                 *optsize = 0;
3300         }
3301         return (error);
3302 }
3303
3304 static int
3305 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3306     void *p)
3307 {
3308         int error, set_opt;
3309         uint32_t *mopt;
3310         struct sctp_tcb *stcb = NULL;
3311         struct sctp_inpcb *inp = NULL;
3312         uint32_t vrf_id;
3313
3314         if (optval == NULL) {
3315                 SCTP_PRINTF("optval is NULL\n");
3316                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3317                 return (EINVAL);
3318         }
3319         inp = (struct sctp_inpcb *)so->so_pcb;
3320         if (inp == NULL) {
3321                 SCTP_PRINTF("inp is NULL?\n");
3322                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3323                 return (EINVAL);
3324         }
3325         vrf_id = inp->def_vrf_id;
3326
3327         error = 0;
3328         switch (optname) {
3329         case SCTP_NODELAY:
3330         case SCTP_AUTOCLOSE:
3331         case SCTP_AUTO_ASCONF:
3332         case SCTP_EXPLICIT_EOR:
3333         case SCTP_DISABLE_FRAGMENTS:
3334         case SCTP_USE_EXT_RCVINFO:
3335         case SCTP_I_WANT_MAPPED_V4_ADDR:
3336                 /* copy in the option value */
3337                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3338                 set_opt = 0;
3339                 if (error)
3340                         break;
3341                 switch (optname) {
3342                 case SCTP_DISABLE_FRAGMENTS:
3343                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3344                         break;
3345                 case SCTP_AUTO_ASCONF:
3346                         /*
3347                          * NOTE: we don't really support this flag
3348                          */
3349                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3350                                 /* only valid for bound all sockets */
3351                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3352                                     (*mopt != 0)) {
3353                                         /* forbidden by admin */
3354                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3355                                         return (EPERM);
3356                                 }
3357                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3358                         } else {
3359                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3360                                 return (EINVAL);
3361                         }
3362                         break;
3363                 case SCTP_EXPLICIT_EOR:
3364                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3365                         break;
3366                 case SCTP_USE_EXT_RCVINFO:
3367                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3368                         break;
3369                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3370                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3371                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3372                         } else {
3373                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3374                                 return (EINVAL);
3375                         }
3376                         break;
3377                 case SCTP_NODELAY:
3378                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3379                         break;
3380                 case SCTP_AUTOCLOSE:
3381                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3382                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3383                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3384                                 return (EINVAL);
3385                         }
3386                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3387                         /*
3388                          * The value is in ticks. Note this does not effect
3389                          * old associations, only new ones.
3390                          */
3391                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3392                         break;
3393                 }
3394                 SCTP_INP_WLOCK(inp);
3395                 if (*mopt != 0) {
3396                         sctp_feature_on(inp, set_opt);
3397                 } else {
3398                         sctp_feature_off(inp, set_opt);
3399                 }
3400                 SCTP_INP_WUNLOCK(inp);
3401                 break;
3402         case SCTP_REUSE_PORT:
3403                 {
3404                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3405                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3406                                 /* Can't set it after we are bound */
3407                                 error = EINVAL;
3408                                 break;
3409                         }
3410                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3411                                 /* Can't do this for a 1-m socket */
3412                                 error = EINVAL;
3413                                 break;
3414                         }
3415                         if (optval)
3416                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3417                         else
3418                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3419                         break;
3420                 }
3421         case SCTP_PARTIAL_DELIVERY_POINT:
3422                 {
3423                         uint32_t *value;
3424
3425                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3426                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3428                                 error = EINVAL;
3429                                 break;
3430                         }
3431                         inp->partial_delivery_point = *value;
3432                         break;
3433                 }
3434         case SCTP_FRAGMENT_INTERLEAVE:
3435                 /* not yet until we re-write sctp_recvmsg() */
3436                 {
3437                         uint32_t *level;
3438
3439                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3440                         if (*level == SCTP_FRAG_LEVEL_2) {
3441                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3442                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3443                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3444                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3445                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3446                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3447                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3448                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3449
3450                         } else {
3451                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3452                                 error = EINVAL;
3453                         }
3454                         break;
3455                 }
3456         case SCTP_CMT_ON_OFF:
3457                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3458                         struct sctp_assoc_value *av;
3459
3460                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3461                         if (av->assoc_value > SCTP_CMT_MAX) {
3462                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3463                                 error = EINVAL;
3464                                 break;
3465                         }
3466                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3467                         if (stcb) {
3468                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3469                                 SCTP_TCB_UNLOCK(stcb);
3470                         } else {
3471                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3472                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3473                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3474                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3475                                         SCTP_INP_WLOCK(inp);
3476                                         inp->sctp_cmt_on_off = av->assoc_value;
3477                                         SCTP_INP_WUNLOCK(inp);
3478                                 }
3479                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3480                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3481                                         SCTP_INP_RLOCK(inp);
3482                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3483                                                 SCTP_TCB_LOCK(stcb);
3484                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3485                                                 SCTP_TCB_UNLOCK(stcb);
3486                                         }
3487                                         SCTP_INP_RUNLOCK(inp);
3488                                 }
3489                         }
3490                 } else {
3491                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3492                         error = ENOPROTOOPT;
3493                 }
3494                 break;
3495         case SCTP_PLUGGABLE_CC:
3496                 {
3497                         struct sctp_assoc_value *av;
3498                         struct sctp_nets *net;
3499
3500                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3501                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3502                             (av->assoc_value != SCTP_CC_HSTCP) &&
3503                             (av->assoc_value != SCTP_CC_HTCP) &&
3504                             (av->assoc_value != SCTP_CC_RTCC)) {
3505                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3506                                 error = EINVAL;
3507                                 break;
3508                         }
3509                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3510                         if (stcb) {
3511                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3512                                 stcb->asoc.congestion_control_module = av->assoc_value;
3513                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3514                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3515                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3516                                         }
3517                                 }
3518                                 SCTP_TCB_UNLOCK(stcb);
3519                         } else {
3520                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3521                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3522                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3523                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3524                                         SCTP_INP_WLOCK(inp);
3525                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3526                                         SCTP_INP_WUNLOCK(inp);
3527                                 }
3528                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3529                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3530                                         SCTP_INP_RLOCK(inp);
3531                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3532                                                 SCTP_TCB_LOCK(stcb);
3533                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3534                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3535                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3536                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3537                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3538                                                         }
3539                                                 }
3540                                                 SCTP_TCB_UNLOCK(stcb);
3541                                         }
3542                                         SCTP_INP_RUNLOCK(inp);
3543                                 }
3544                         }
3545                         break;
3546                 }
3547         case SCTP_CC_OPTION:
3548                 {
3549                         struct sctp_cc_option *cc_opt;
3550
3551                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3552                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3553                         if (stcb == NULL) {
3554                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3555                                         SCTP_INP_RLOCK(inp);
3556                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3557                                                 SCTP_TCB_LOCK(stcb);
3558                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3559                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3560                                                 }
3561                                                 SCTP_TCB_UNLOCK(stcb);
3562                                         }
3563                                         SCTP_INP_RUNLOCK(inp);
3564                                 } else {
3565                                         error = EINVAL;
3566                                 }
3567                         } else {
3568                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3569                                         error = ENOTSUP;
3570                                 } else {
3571                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3572                                             cc_opt);
3573                                 }
3574                                 SCTP_TCB_UNLOCK(stcb);
3575                         }
3576                         break;
3577                 }
3578         case SCTP_PLUGGABLE_SS:
3579                 {
3580                         struct sctp_assoc_value *av;
3581
3582                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3583                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3584                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3585                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3586                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3587                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3588                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3589                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3590                                 error = EINVAL;
3591                                 break;
3592                         }
3593                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3594                         if (stcb) {
3595                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3596                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3597                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3598                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3599                                 SCTP_TCB_UNLOCK(stcb);
3600                         } else {
3601                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3602                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3603                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3604                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3605                                         SCTP_INP_WLOCK(inp);
3606                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3607                                         SCTP_INP_WUNLOCK(inp);
3608                                 }
3609                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3610                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3611                                         SCTP_INP_RLOCK(inp);
3612                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3613                                                 SCTP_TCB_LOCK(stcb);
3614                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3615                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3616                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3617                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3618                                                 SCTP_TCB_UNLOCK(stcb);
3619                                         }
3620                                         SCTP_INP_RUNLOCK(inp);
3621                                 }
3622                         }
3623                         break;
3624                 }
3625         case SCTP_SS_VALUE:
3626                 {
3627                         struct sctp_stream_value *av;
3628
3629                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3630                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3631                         if (stcb) {
3632                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3633                                     av->stream_value) < 0) {
3634                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3635                                         error = EINVAL;
3636                                 }
3637                                 SCTP_TCB_UNLOCK(stcb);
3638                         } else {
3639                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3640                                         SCTP_INP_RLOCK(inp);
3641                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3642                                                 SCTP_TCB_LOCK(stcb);
3643                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3644                                                     &stcb->asoc,
3645                                                     &stcb->asoc.strmout[av->stream_id],
3646                                                     av->stream_value);
3647                                                 SCTP_TCB_UNLOCK(stcb);
3648                                         }
3649                                         SCTP_INP_RUNLOCK(inp);
3650
3651                                 } else {
3652                                         /*
3653                                          * Can't set stream value without
3654                                          * association
3655                                          */
3656                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3657                                         error = EINVAL;
3658                                 }
3659                         }
3660                         break;
3661                 }
3662         case SCTP_CLR_STAT_LOG:
3663                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3664                 error = EOPNOTSUPP;
3665                 break;
3666         case SCTP_CONTEXT:
3667                 {
3668                         struct sctp_assoc_value *av;
3669
3670                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3671                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3672
3673                         if (stcb) {
3674                                 stcb->asoc.context = av->assoc_value;
3675                                 SCTP_TCB_UNLOCK(stcb);
3676                         } else {
3677                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3678                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3679                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3680                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3681                                         SCTP_INP_WLOCK(inp);
3682                                         inp->sctp_context = av->assoc_value;
3683                                         SCTP_INP_WUNLOCK(inp);
3684                                 }
3685                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3686                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3687                                         SCTP_INP_RLOCK(inp);
3688                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3689                                                 SCTP_TCB_LOCK(stcb);
3690                                                 stcb->asoc.context = av->assoc_value;
3691                                                 SCTP_TCB_UNLOCK(stcb);
3692                                         }
3693                                         SCTP_INP_RUNLOCK(inp);
3694                                 }
3695                         }
3696                         break;
3697                 }
3698         case SCTP_VRF_ID:
3699                 {
3700                         uint32_t *default_vrfid;
3701
3702                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3703                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3705                                 error = EINVAL;
3706                                 break;
3707                         }
3708                         inp->def_vrf_id = *default_vrfid;
3709                         break;
3710                 }
3711         case SCTP_DEL_VRF_ID:
3712                 {
3713                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3714                         error = EOPNOTSUPP;
3715                         break;
3716                 }
3717         case SCTP_ADD_VRF_ID:
3718                 {
3719                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3720                         error = EOPNOTSUPP;
3721                         break;
3722                 }
3723         case SCTP_DELAYED_SACK:
3724                 {
3725                         struct sctp_sack_info *sack;
3726
3727                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3728                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3729                         if (sack->sack_delay) {
3730                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3731                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3732                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3733                                         sack->sack_delay = TICKS_TO_MSEC(1);
3734                                 }
3735                         }
3736                         if (stcb) {
3737                                 if (sack->sack_delay) {
3738                                         stcb->asoc.delayed_ack = sack->sack_delay;
3739                                 }
3740                                 if (sack->sack_freq) {
3741                                         stcb->asoc.sack_freq = sack->sack_freq;
3742                                 }
3743                                 SCTP_TCB_UNLOCK(stcb);
3744                         } else {
3745                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3746                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3747                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3748                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3749                                         SCTP_INP_WLOCK(inp);
3750                                         if (sack->sack_delay) {
3751                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3752                                         }
3753                                         if (sack->sack_freq) {
3754                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3755                                         }
3756                                         SCTP_INP_WUNLOCK(inp);
3757                                 }
3758                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3759                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3760                                         SCTP_INP_RLOCK(inp);
3761                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3762                                                 SCTP_TCB_LOCK(stcb);
3763                                                 if (sack->sack_delay) {
3764                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3765                                                 }
3766                                                 if (sack->sack_freq) {
3767                                                         stcb->asoc.sack_freq = sack->sack_freq;
3768                                                 }
3769                                                 SCTP_TCB_UNLOCK(stcb);
3770                                         }
3771                                         SCTP_INP_RUNLOCK(inp);
3772                                 }
3773                         }
3774                         break;
3775                 }
3776         case SCTP_AUTH_CHUNK:
3777                 {
3778                         struct sctp_authchunk *sauth;
3779
3780                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3781
3782                         SCTP_INP_WLOCK(inp);
3783                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3784                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3785                                 error = EINVAL;
3786                         }
3787                         SCTP_INP_WUNLOCK(inp);
3788                         break;
3789                 }
3790         case SCTP_AUTH_KEY:
3791                 {
3792                         struct sctp_authkey *sca;
3793                         struct sctp_keyhead *shared_keys;
3794                         sctp_sharedkey_t *shared_key;
3795                         sctp_key_t *key = NULL;
3796                         size_t size;
3797
3798                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3799                         if (sca->sca_keylength == 0) {
3800                                 size = optsize - sizeof(struct sctp_authkey);
3801                         } else {
3802                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3803                                         size = sca->sca_keylength;
3804                                 } else {
3805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3806                                         error = EINVAL;
3807                                         break;
3808                                 }
3809                         }
3810                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3811
3812                         if (stcb) {
3813                                 shared_keys = &stcb->asoc.shared_keys;
3814                                 /* clear the cached keys for this key id */
3815                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3816                                 /*
3817                                  * create the new shared key and
3818                                  * insert/replace it
3819                                  */
3820                                 if (size > 0) {
3821                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3822                                         if (key == NULL) {
3823                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3824                                                 error = ENOMEM;
3825                                                 SCTP_TCB_UNLOCK(stcb);
3826                                                 break;
3827                                         }
3828                                 }
3829                                 shared_key = sctp_alloc_sharedkey();
3830                                 if (shared_key == NULL) {
3831                                         sctp_free_key(key);
3832                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3833                                         error = ENOMEM;
3834                                         SCTP_TCB_UNLOCK(stcb);
3835                                         break;
3836                                 }
3837                                 shared_key->key = key;
3838                                 shared_key->keyid = sca->sca_keynumber;
3839                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3840                                 SCTP_TCB_UNLOCK(stcb);
3841                         } else {
3842                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3843                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3844                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3845                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3846                                         SCTP_INP_WLOCK(inp);
3847                                         shared_keys = &inp->sctp_ep.shared_keys;
3848                                         /*
3849                                          * clear the cached keys on all
3850                                          * assocs for this key id
3851                                          */
3852                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3853                                         /*
3854                                          * create the new shared key and
3855                                          * insert/replace it
3856                                          */
3857                                         if (size > 0) {
3858                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3859                                                 if (key == NULL) {
3860                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3861                                                         error = ENOMEM;
3862                                                         SCTP_INP_WUNLOCK(inp);
3863                                                         break;
3864                                                 }
3865                                         }
3866                                         shared_key = sctp_alloc_sharedkey();
3867                                         if (shared_key == NULL) {
3868                                                 sctp_free_key(key);
3869                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3870                                                 error = ENOMEM;
3871                                                 SCTP_INP_WUNLOCK(inp);
3872                                                 break;
3873                                         }
3874                                         shared_key->key = key;
3875                                         shared_key->keyid = sca->sca_keynumber;
3876                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3877                                         SCTP_INP_WUNLOCK(inp);
3878                                 }
3879                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3880                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3881                                         SCTP_INP_RLOCK(inp);
3882                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3883                                                 SCTP_TCB_LOCK(stcb);
3884                                                 shared_keys = &stcb->asoc.shared_keys;
3885                                                 /*
3886                                                  * clear the cached keys for
3887                                                  * this key id
3888                                                  */
3889                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3890                                                 /*
3891                                                  * create the new shared key
3892                                                  * and insert/replace it
3893                                                  */
3894                                                 if (size > 0) {
3895                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3896                                                         if (key == NULL) {
3897                                                                 SCTP_TCB_UNLOCK(stcb);
3898                                                                 continue;
3899                                                         }
3900                                                 }
3901                                                 shared_key = sctp_alloc_sharedkey();
3902                                                 if (shared_key == NULL) {
3903                                                         sctp_free_key(key);
3904                                                         SCTP_TCB_UNLOCK(stcb);
3905                                                         continue;
3906                                                 }
3907                                                 shared_key->key = key;
3908                                                 shared_key->keyid = sca->sca_keynumber;
3909                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3910                                                 SCTP_TCB_UNLOCK(stcb);
3911                                         }
3912                                         SCTP_INP_RUNLOCK(inp);
3913                                 }
3914                         }
3915                         break;
3916                 }
3917         case SCTP_HMAC_IDENT:
3918                 {
3919                         struct sctp_hmacalgo *shmac;
3920                         sctp_hmaclist_t *hmaclist;
3921                         uint16_t hmacid;
3922                         uint32_t i;
3923                         size_t found;
3924
3925                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3926                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3927                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3928                                 error = EINVAL;
3929                                 break;
3930                         }
3931                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3932                         if (hmaclist == NULL) {
3933                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3934                                 error = ENOMEM;
3935                                 break;
3936                         }
3937                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3938                                 hmacid = shmac->shmac_idents[i];
3939                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3940                                          /* invalid HMACs were found */ ;
3941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3942                                         error = EINVAL;
3943                                         sctp_free_hmaclist(hmaclist);
3944                                         goto sctp_set_hmac_done;
3945                                 }
3946                         }
3947                         found = 0;
3948                         for (i = 0; i < hmaclist->num_algo; i++) {
3949                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3950                                         /* already in list */
3951                                         found = 1;
3952                                 }
3953                         }
3954                         if (!found) {
3955                                 sctp_free_hmaclist(hmaclist);
3956                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3957                                 error = EINVAL;
3958                                 break;
3959                         }
3960                         /* set it on the endpoint */
3961                         SCTP_INP_WLOCK(inp);
3962                         if (inp->sctp_ep.local_hmacs)
3963                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3964                         inp->sctp_ep.local_hmacs = hmaclist;
3965                         SCTP_INP_WUNLOCK(inp);
3966         sctp_set_hmac_done:
3967                         break;
3968                 }
3969         case SCTP_AUTH_ACTIVE_KEY:
3970                 {
3971                         struct sctp_authkeyid *scact;
3972
3973                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3974                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3975
3976                         /* set the active key on the right place */
3977                         if (stcb) {
3978                                 /* set the active key on the assoc */
3979                                 if (sctp_auth_setactivekey(stcb,
3980                                     scact->scact_keynumber)) {
3981                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3982                                             SCTP_FROM_SCTP_USRREQ,
3983                                             EINVAL);
3984                                         error = EINVAL;
3985                                 }
3986                                 SCTP_TCB_UNLOCK(stcb);
3987                         } else {
3988                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3989                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3990                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3991                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3992                                         SCTP_INP_WLOCK(inp);
3993                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
3994                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3995                                                 error = EINVAL;
3996                                         }
3997                                         SCTP_INP_WUNLOCK(inp);
3998                                 }
3999                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4000                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4001                                         SCTP_INP_RLOCK(inp);
4002                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4003                                                 SCTP_TCB_LOCK(stcb);
4004                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4005                                                 SCTP_TCB_UNLOCK(stcb);
4006                                         }
4007                                         SCTP_INP_RUNLOCK(inp);
4008                                 }
4009                         }
4010                         break;
4011                 }
4012         case SCTP_AUTH_DELETE_KEY:
4013                 {
4014                         struct sctp_authkeyid *scdel;
4015
4016                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4017                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4018
4019                         /* delete the key from the right place */
4020                         if (stcb) {
4021                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4022                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4023                                         error = EINVAL;
4024                                 }
4025                                 SCTP_TCB_UNLOCK(stcb);
4026                         } else {
4027                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4028                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4029                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4030                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4031                                         SCTP_INP_WLOCK(inp);
4032                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4033                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4034                                                 error = EINVAL;
4035                                         }
4036                                         SCTP_INP_WUNLOCK(inp);
4037                                 }
4038                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4039                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4040                                         SCTP_INP_RLOCK(inp);
4041                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4042                                                 SCTP_TCB_LOCK(stcb);
4043                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4044                                                 SCTP_TCB_UNLOCK(stcb);
4045                                         }
4046                                         SCTP_INP_RUNLOCK(inp);
4047                                 }
4048                         }
4049                         break;
4050                 }
4051         case SCTP_AUTH_DEACTIVATE_KEY:
4052                 {
4053                         struct sctp_authkeyid *keyid;
4054
4055                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4056                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4057
4058                         /* deactivate the key from the right place */
4059                         if (stcb) {
4060                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4061                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4062                                         error = EINVAL;
4063                                 }
4064                                 SCTP_TCB_UNLOCK(stcb);
4065                         } else {
4066                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4067                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4068                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4069                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4070                                         SCTP_INP_WLOCK(inp);
4071                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4072                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4073                                                 error = EINVAL;
4074                                         }
4075                                         SCTP_INP_WUNLOCK(inp);
4076                                 }
4077                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4078                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4079                                         SCTP_INP_RLOCK(inp);
4080                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4081                                                 SCTP_TCB_LOCK(stcb);
4082                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4083                                                 SCTP_TCB_UNLOCK(stcb);
4084                                         }
4085                                         SCTP_INP_RUNLOCK(inp);
4086                                 }
4087                         }
4088                         break;
4089                 }
4090         case SCTP_ENABLE_STREAM_RESET:
4091                 {
4092                         struct sctp_assoc_value *av;
4093                         uint8_t set_value = 0;
4094
4095                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4096                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4097                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4098                                 error = EINVAL;
4099                                 break;
4100                         }
4101                         set_value = av->assoc_value & SCTP_ENABLE_VALUE_MASK;
4102                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4103                         if (stcb) {
4104                                 stcb->asoc.local_strreset_support = set_value;
4105                                 SCTP_TCB_UNLOCK(stcb);
4106                         } else {
4107                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4108                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4109                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4110                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4111                                         SCTP_INP_WLOCK(inp);
4112                                         inp->local_strreset_support = set_value;
4113                                         SCTP_INP_WUNLOCK(inp);
4114                                 }
4115                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4116                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4117                                         SCTP_INP_RLOCK(inp);
4118                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4119                                                 SCTP_TCB_LOCK(stcb);
4120                                                 stcb->asoc.local_strreset_support = set_value;
4121                                                 SCTP_TCB_UNLOCK(stcb);
4122                                         }
4123                                         SCTP_INP_RUNLOCK(inp);
4124                                 }
4125                         }
4126                         break;
4127                 }
4128         case SCTP_RESET_STREAMS:
4129                 {
4130                         struct sctp_reset_streams *strrst;
4131                         int i, send_out = 0;
4132                         int send_in = 0;
4133
4134                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4135                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4136
4137                         if (stcb == NULL) {
4138                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4139                                 error = ENOENT;
4140                                 break;
4141                         }
4142                         if (stcb->asoc.peer_supports_strreset == 0) {
4143                                 /*
4144                                  * Peer does not support the chunk type.
4145                                  */
4146                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4147                                 error = EOPNOTSUPP;
4148                                 SCTP_TCB_UNLOCK(stcb);
4149                                 break;
4150                         }
4151                         if (!(stcb->asoc.local_strreset_support & SCTP_ENABLE_RESET_STREAM_REQ)) {
4152                                 /*
4153                                  * User did not enable the operation.
4154                                  */
4155                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
4156                                 error = EPERM;
4157                                 SCTP_TCB_UNLOCK(stcb);
4158                                 break;
4159                         }
4160                         if (stcb->asoc.stream_reset_outstanding) {
4161                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4162                                 error = EALREADY;
4163                                 SCTP_TCB_UNLOCK(stcb);
4164                                 break;
4165                         }
4166                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4167                                 send_in = 1;
4168                         }
4169                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4170                                 send_out = 1;
4171                         }
4172                         if ((send_in == 0) && (send_out == 0)) {
4173                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4174                                 error = EINVAL;
4175                                 SCTP_TCB_UNLOCK(stcb);
4176                                 break;
4177                         }
4178                         for (i = 0; i < strrst->srs_number_streams; i++) {
4179                                 if ((send_in) &&
4180                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4181                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4182                                         error = EINVAL;
4183                                         break;
4184                                 }
4185                                 if ((send_out) &&
4186                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4187                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4188                                         error = EINVAL;
4189                                         break;
4190                                 }
4191                         }
4192                         if (error) {
4193                                 SCTP_TCB_UNLOCK(stcb);
4194                                 break;
4195                         }
4196                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4197                             strrst->srs_stream_list,
4198                             send_out, send_in, 0, 0, 0, 0, 0);
4199
4200                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4201                         SCTP_TCB_UNLOCK(stcb);
4202                         break;
4203                 }
4204         case SCTP_ADD_STREAMS:
4205                 {
4206                         struct sctp_add_streams *stradd;
4207                         uint8_t addstream = 0;
4208                         uint16_t add_o_strmcnt = 0;
4209                         uint16_t add_i_strmcnt = 0;
4210
4211                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4212                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4213                         if (stcb == NULL) {
4214                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4215                                 error = ENOENT;
4216                                 break;
4217                         }
4218                         if ((stradd->sas_outstrms == 0) &&
4219                             (stradd->sas_instrms == 0)) {
4220                                 error = EINVAL;
4221                                 goto skip_stuff;
4222                         }
4223                         if (stradd->sas_outstrms) {
4224                                 addstream = 1;
4225                                 /* We allocate here */
4226                                 add_o_strmcnt = stradd->sas_outstrms;
4227                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4228                                         /* You can't have more than 64k */
4229                                         error = EINVAL;
4230                                         goto skip_stuff;
4231                                 }
4232                         }
4233                         if (stradd->sas_instrms) {
4234                                 int cnt;
4235
4236                                 addstream |= 2;
4237                                 /*
4238                                  * We allocate inside
4239                                  * sctp_send_str_reset_req()
4240                                  */
4241                                 add_i_strmcnt = stradd->sas_instrms;
4242                                 cnt = add_i_strmcnt;
4243                                 cnt += stcb->asoc.streamincnt;
4244                                 if (cnt > 0x0000ffff) {
4245                                         /* You can't have more than 64k */
4246                                         error = EINVAL;
4247                                         goto skip_stuff;
4248                                 }
4249                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4250                                         /* More than you are allowed */
4251                                         error = EINVAL;
4252                                         goto skip_stuff;
4253                                 }
4254                         }
4255                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4256                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4257         skip_stuff:
4258                         SCTP_TCB_UNLOCK(stcb);
4259                         break;
4260                 }
4261         case SCTP_RESET_ASSOC:
4262                 {
4263                         uint32_t *value;
4264
4265                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4266                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4267                         if (stcb == NULL) {
4268                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4269                                 error = ENOENT;
4270                                 break;
4271                         }
4272                         if (stcb->asoc.peer_supports_strreset == 0) {
4273                                 /*
4274                                  * Peer does not support the chunk type.
4275                                  */
4276                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4277                                 error = EOPNOTSUPP;
4278                                 SCTP_TCB_UNLOCK(stcb);
4279                                 break;
4280                         }
4281                         if (!(stcb->asoc.local_strreset_support & SCTP_ENABLE_RESET_ASSOC_REQ)) {
4282                                 /*
4283                                  * User did not enable the operation.
4284                                  */
4285                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
4286                                 error = EPERM;
4287                                 SCTP_TCB_UNLOCK(stcb);
4288                                 break;
4289                         }
4290                         if (stcb->asoc.stream_reset_outstanding) {
4291                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4292                                 error = EALREADY;
4293                                 SCTP_TCB_UNLOCK(stcb);
4294                                 break;
4295                         }
4296                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4297                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4298                         SCTP_TCB_UNLOCK(stcb);
4299                         break;
4300                 }
4301         case SCTP_CONNECT_X:
4302                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4303                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4304                         error = EINVAL;
4305                         break;
4306                 }
4307                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4308                 break;
4309         case SCTP_CONNECT_X_DELAYED:
4310                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4311                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4312                         error = EINVAL;
4313                         break;
4314                 }
4315                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4316                 break;
4317         case SCTP_CONNECT_X_COMPLETE:
4318                 {
4319                         struct sockaddr *sa;
4320                         struct sctp_nets *net;
4321
4322                         /* FIXME MT: check correct? */
4323                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4324
4325                         /* find tcb */
4326                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4327                                 SCTP_INP_RLOCK(inp);
4328                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4329                                 if (stcb) {
4330                                         SCTP_TCB_LOCK(stcb);
4331                                         net = sctp_findnet(stcb, sa);
4332                                 }
4333                                 SCTP_INP_RUNLOCK(inp);
4334                         } else {
4335                                 /*
4336                                  * We increment here since
4337                                  * sctp_findassociation_ep_addr() wil do a
4338                                  * decrement if it finds the stcb as long as
4339                                  * the locked tcb (last argument) is NOT a
4340                                  * TCB.. aka NULL.
4341                                  */
4342                                 SCTP_INP_INCR_REF(inp);
4343                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4344                                 if (stcb == NULL) {
4345                                         SCTP_INP_DECR_REF(inp);
4346                                 }
4347                         }
4348
4349                         if (stcb == NULL) {
4350                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4351                                 error = ENOENT;
4352                                 break;
4353                         }
4354                         if (stcb->asoc.delayed_connection == 1) {
4355                                 stcb->asoc.delayed_connection = 0;
4356                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4357                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4358                                     stcb->asoc.primary_destination,
4359                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4360                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4361                         } else {
4362                                 /*
4363                                  * already expired or did not use delayed
4364                                  * connectx
4365                                  */
4366                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4367                                 error = EALREADY;
4368                         }
4369                         SCTP_TCB_UNLOCK(stcb);
4370                         break;
4371                 }
4372         case SCTP_MAX_BURST:
4373                 {
4374                         struct sctp_assoc_value *av;
4375
4376                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4377                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4378
4379                         if (stcb) {
4380                                 stcb->asoc.max_burst = av->assoc_value;
4381                                 SCTP_TCB_UNLOCK(stcb);
4382                         } else {
4383                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4384                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4385                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4386                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4387                                         SCTP_INP_WLOCK(inp);
4388                                         inp->sctp_ep.max_burst = av->assoc_value;
4389                                         SCTP_INP_WUNLOCK(inp);
4390                                 }
4391                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4392                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4393                                         SCTP_INP_RLOCK(inp);
4394                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4395                                                 SCTP_TCB_LOCK(stcb);
4396                                                 stcb->asoc.max_burst = av->assoc_value;
4397                                                 SCTP_TCB_UNLOCK(stcb);
4398                                         }
4399                                         SCTP_INP_RUNLOCK(inp);
4400                                 }
4401                         }
4402                         break;
4403                 }
4404         case SCTP_MAXSEG:
4405                 {
4406                         struct sctp_assoc_value *av;
4407                         int ovh;
4408
4409                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4410                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4411
4412                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4413                                 ovh = SCTP_MED_OVERHEAD;
4414                         } else {
4415                                 ovh = SCTP_MED_V4_OVERHEAD;
4416                         }
4417                         if (stcb) {
4418                                 if (av->assoc_value) {
4419                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4420                                 } else {
4421                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4422                                 }
4423                                 SCTP_TCB_UNLOCK(stcb);
4424                         } else {
4425                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4426                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4427                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4428                                         SCTP_INP_WLOCK(inp);
4429                                         /*
4430                                          * FIXME MT: I think this is not in
4431                                          * tune with the API ID
4432                                          */
4433                                         if (av->assoc_value) {
4434                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4435                                         } else {
4436                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4437                                         }
4438                                         SCTP_INP_WUNLOCK(inp);
4439                                 } else {
4440                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4441                                         error = EINVAL;
4442                                 }
4443                         }
4444                         break;
4445                 }
4446         case SCTP_EVENTS:
4447                 {
4448                         struct sctp_event_subscribe *events;
4449
4450                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4451
4452                         SCTP_INP_WLOCK(inp);
4453                         if (events->sctp_data_io_event) {
4454                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4455                         } else {
4456                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4457                         }
4458
4459                         if (events->sctp_association_event) {
4460                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4461                         } else {
4462                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4463                         }
4464
4465                         if (events->sctp_address_event) {
4466                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4467                         } else {
4468                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4469                         }
4470
4471                         if (events->sctp_send_failure_event) {
4472                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4473                         } else {
4474                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4475                         }
4476
4477                         if (events->sctp_peer_error_event) {
4478                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4479                         } else {
4480                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4481                         }
4482
4483                         if (events->sctp_shutdown_event) {
4484                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4485                         } else {
4486                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4487                         }
4488
4489                         if (events->sctp_partial_delivery_event) {
4490                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4491                         } else {
4492                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4493                         }
4494
4495                         if (events->sctp_adaptation_layer_event) {
4496                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4497                         } else {
4498                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4499                         }
4500
4501                         if (events->sctp_authentication_event) {
4502                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4503                         } else {
4504                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4505                         }
4506
4507                         if (events->sctp_sender_dry_event) {
4508                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4509                         } else {
4510                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4511                         }
4512
4513                         if (events->sctp_stream_reset_event) {
4514                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4515                         } else {
4516                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4517                         }
4518                         SCTP_INP_WUNLOCK(inp);
4519
4520                         SCTP_INP_RLOCK(inp);
4521                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4522                                 SCTP_TCB_LOCK(stcb);
4523                                 if (events->sctp_association_event) {
4524                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4525                                 } else {
4526                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4527                                 }
4528                                 if (events->sctp_address_event) {
4529                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4530                                 } else {
4531                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4532                                 }
4533                                 if (events->sctp_send_failure_event) {
4534                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4535                                 } else {
4536                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4537                                 }
4538                                 if (events->sctp_peer_error_event) {
4539                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4540                                 } else {
4541                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4542                                 }
4543                                 if (events->sctp_shutdown_event) {
4544                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4545                                 } else {
4546                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4547                                 }
4548                                 if (events->sctp_partial_delivery_event) {
4549                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4550                                 } else {
4551                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4552                                 }
4553                                 if (events->sctp_adaptation_layer_event) {
4554                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4555                                 } else {
4556                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4557                                 }
4558                                 if (events->sctp_authentication_event) {
4559                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4560                                 } else {
4561                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4562                                 }
4563                                 if (events->sctp_sender_dry_event) {
4564                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4565                                 } else {
4566                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4567                                 }
4568                                 if (events->sctp_stream_reset_event) {
4569                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4570                                 } else {
4571                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4572                                 }
4573                                 SCTP_TCB_UNLOCK(stcb);
4574                         }
4575                         /*
4576                          * Send up the sender dry event only for 1-to-1
4577                          * style sockets.
4578                          */
4579                         if (events->sctp_sender_dry_event) {
4580                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4581                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4582                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4583                                         if (stcb) {
4584                                                 SCTP_TCB_LOCK(stcb);
4585                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4586                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4587                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4588                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4589                                                 }
4590                                                 SCTP_TCB_UNLOCK(stcb);
4591                                         }
4592                                 }
4593                         }
4594                         SCTP_INP_RUNLOCK(inp);
4595                         break;
4596                 }
4597         case SCTP_ADAPTATION_LAYER:
4598                 {
4599                         struct sctp_setadaptation *adap_bits;
4600
4601                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4602                         SCTP_INP_WLOCK(inp);
4603                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4604                         SCTP_INP_WUNLOCK(inp);
4605                         break;
4606                 }
4607 #ifdef SCTP_DEBUG
4608         case SCTP_SET_INITIAL_DBG_SEQ:
4609                 {
4610                         uint32_t *vvv;
4611
4612                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4613                         SCTP_INP_WLOCK(inp);
4614                         inp->sctp_ep.initial_sequence_debug = *vvv;
4615                         SCTP_INP_WUNLOCK(inp);
4616                         break;
4617                 }
4618 #endif
4619         case SCTP_DEFAULT_SEND_PARAM:
4620                 {
4621                         struct sctp_sndrcvinfo *s_info;
4622
4623                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4624                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4625
4626                         if (stcb) {
4627                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4628                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4629                                 } else {
4630                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4631                                         error = EINVAL;
4632                                 }
4633                                 SCTP_TCB_UNLOCK(stcb);
4634                         } else {
4635                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4636                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4637                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4638                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4639                                         SCTP_INP_WLOCK(inp);
4640                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4641                                         SCTP_INP_WUNLOCK(inp);
4642                                 }
4643                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4644                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4645                                         SCTP_INP_RLOCK(inp);
4646                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4647                                                 SCTP_TCB_LOCK(stcb);
4648                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4649                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4650                                                 }
4651                                                 SCTP_TCB_UNLOCK(stcb);
4652                                         }
4653                                         SCTP_INP_RUNLOCK(inp);
4654                                 }
4655                         }
4656                         break;
4657                 }
4658         case SCTP_PEER_ADDR_PARAMS:
4659                 {
4660                         struct sctp_paddrparams *paddrp;
4661                         struct sctp_nets *net;
4662
4663                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4664                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4665                         net = NULL;
4666                         if (stcb) {
4667                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4668                         } else {
4669                                 /*
4670                                  * We increment here since
4671                                  * sctp_findassociation_ep_addr() wil do a
4672                                  * decrement if it finds the stcb as long as
4673                                  * the locked tcb (last argument) is NOT a
4674                                  * TCB.. aka NULL.
4675                                  */
4676                                 SCTP_INP_INCR_REF(inp);
4677                                 stcb = sctp_findassociation_ep_addr(&inp,
4678                                     (struct sockaddr *)&paddrp->spp_address,
4679                                     &net, NULL, NULL);
4680                                 if (stcb == NULL) {
4681                                         SCTP_INP_DECR_REF(inp);
4682                                 }
4683                         }
4684                         if (stcb && (net == NULL)) {
4685                                 struct sockaddr *sa;
4686
4687                                 sa = (struct sockaddr *)&paddrp->spp_address;
4688 #ifdef INET
4689                                 if (sa->sa_family == AF_INET) {
4690
4691                                         struct sockaddr_in *sin;
4692
4693                                         sin = (struct sockaddr_in *)sa;
4694                                         if (sin->sin_addr.s_addr) {
4695                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4696                                                 SCTP_TCB_UNLOCK(stcb);
4697                                                 error = EINVAL;
4698                                                 break;
4699                                         }
4700                                 } else
4701 #endif
4702 #ifdef INET6
4703                                 if (sa->sa_family == AF_INET6) {
4704                                         struct sockaddr_in6 *sin6;
4705
4706                                         sin6 = (struct sockaddr_in6 *)sa;
4707                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4708                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4709                                                 SCTP_TCB_UNLOCK(stcb);
4710                                                 error = EINVAL;
4711                                                 break;
4712                                         }
4713                                 } else
4714 #endif
4715                                 {
4716                                         error = EAFNOSUPPORT;
4717                                         SCTP_TCB_UNLOCK(stcb);
4718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4719                                         break;
4720                                 }
4721                         }
4722                         /* sanity checks */
4723                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4724                                 if (stcb)
4725                                         SCTP_TCB_UNLOCK(stcb);
4726                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4727                                 return (EINVAL);
4728                         }
4729                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4730                                 if (stcb)
4731                                         SCTP_TCB_UNLOCK(stcb);
4732                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4733                                 return (EINVAL);
4734                         }
4735                         if (stcb) {
4736                                 /************************TCB SPECIFIC SET ******************/
4737                                 /*
4738                                  * do we change the timer for HB, we run
4739                                  * only one?
4740                                  */
4741                                 int ovh = 0;
4742
4743                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4744                                         ovh = SCTP_MED_OVERHEAD;
4745                                 } else {
4746                                         ovh = SCTP_MED_V4_OVERHEAD;
4747                                 }
4748
4749                                 /* network sets ? */
4750                                 if (net) {
4751                                         /************************NET SPECIFIC SET ******************/
4752                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4753                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4754                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4755                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4756                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4757                                                 }
4758                                                 net->dest_state |= SCTP_ADDR_NOHB;
4759                                         }
4760                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4761                                                 if (paddrp->spp_hbinterval) {
4762                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4763                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4764                                                         net->heart_beat_delay = 0;
4765                                                 }
4766                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4767                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4768                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4769                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4770                                         }
4771                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4772                                                 /* on demand HB */
4773                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4774                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
4775                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4776                                         }
4777                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4778                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4779                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4780                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4781                                                 }
4782                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
4783                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4784                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4785                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4786                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
4787                                                         }
4788                                                 }
4789                                         }
4790                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4791                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4792                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4793                                                 }
4794                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4795                                         }
4796                                         if (paddrp->spp_pathmaxrxt) {
4797                                                 if (net->dest_state & SCTP_ADDR_PF) {
4798                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4799                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4800                                                         }
4801                                                 } else {
4802                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4803                                                             (net->error_count > net->pf_threshold)) {
4804                                                                 net->dest_state |= SCTP_ADDR_PF;
4805                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4806                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4807                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4808                                                         }
4809                                                 }
4810                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4811                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4812                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4813                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4814                                                         }
4815                                                 } else {
4816                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4817                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4818                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4819                                                         }
4820                                                 }
4821                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4822                                         }
4823                                         if (paddrp->spp_flags & SPP_DSCP) {
4824                                                 net->dscp = paddrp->spp_dscp & 0xfc;
4825                                                 net->dscp |= 0x01;
4826                                         }
4827 #ifdef INET6
4828                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4829                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4830                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4831                                                         net->flowlabel |= 0x80000000;
4832                                                 }
4833                                         }
4834 #endif
4835                                 } else {
4836                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4837                                         if (paddrp->spp_pathmaxrxt) {
4838                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4839                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4840                                                         if (net->dest_state & SCTP_ADDR_PF) {
4841                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4842                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4843                                                                 }
4844                                                         } else {
4845                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4846                                                                     (net->error_count > net->pf_threshold)) {
4847                                                                         net->dest_state |= SCTP_ADDR_PF;
4848                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4849                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4850                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4851                                                                 }
4852                                                         }
4853                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4854                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4855                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4856                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4857                                                                 }
4858                                                         } else {
4859                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4860                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4861                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4862                                                                 }
4863                                                         }
4864                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4865                                                 }
4866                                         }
4867                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4868                                                 if (paddrp->spp_hbinterval) {
4869                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4870                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4871                                                         stcb->asoc.heart_beat_delay = 0;
4872                                                 }
4873                                                 /* Turn back on the timer */
4874                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4875                                                         if (paddrp->spp_hbinterval) {
4876                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4877                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4878                                                                 net->heart_beat_delay = 0;
4879                                                         }
4880                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4881                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4882                                                         }
4883                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4884                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4885                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4886                                                 }
4887                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4888                                         }
4889                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4890                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4891                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4892                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4893                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4894                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4895                                                                 }
4896                                                         }
4897                                                 }
4898                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4899                                         }
4900                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4901                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4902                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4903                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4904                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4905                                                         }
4906                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
4907                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4908                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4909                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4910                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
4911                                                                 }
4912                                                         }
4913                                                 }
4914                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4915                                         }
4916                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4917                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4918                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4919                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4920                                                         }
4921                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4922                                                 }
4923                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4924                                         }
4925                                         if (paddrp->spp_flags & SPP_DSCP) {
4926                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4927                                                         net->dscp = paddrp->spp_dscp & 0xfc;
4928                                                         net->dscp |= 0x01;
4929                                                 }
4930                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
4931                                                 stcb->asoc.default_dscp |= 0x01;
4932                                         }
4933 #ifdef INET6
4934                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4935                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4936                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4937                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4938                                                                 net->flowlabel |= 0x80000000;
4939                                                         }
4940                                                 }
4941                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4942                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4943                                         }
4944 #endif
4945                                 }
4946                                 SCTP_TCB_UNLOCK(stcb);
4947                         } else {
4948                                 /************************NO TCB, SET TO default stuff ******************/
4949                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4950                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4951                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4952                                         SCTP_INP_WLOCK(inp);
4953                                         /*
4954                                          * For the TOS/FLOWLABEL stuff you
4955                                          * set it with the options on the
4956                                          * socket
4957                                          */
4958                                         if (paddrp->spp_pathmaxrxt) {
4959                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
4960                                         }
4961                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
4962                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4963                                         else if (paddrp->spp_hbinterval) {
4964                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
4965                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
4966                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4967                                         }
4968                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4969                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4970                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4971                                                 } else if (paddrp->spp_hbinterval) {
4972                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4973                                                 }
4974                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4975                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
4976                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4977                                         }
4978                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4979                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4980                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
4981                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4982                                         }
4983                                         if (paddrp->spp_flags & SPP_DSCP) {
4984                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
4985                                                 inp->sctp_ep.default_dscp |= 0x01;
4986                                         }
4987 #ifdef INET6
4988                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4989                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4990                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4991                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
4992                                                 }
4993                                         }
4994 #endif
4995                                         SCTP_INP_WUNLOCK(inp);
4996                                 } else {
4997                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4998                                         error = EINVAL;
4999                                 }
5000                         }
5001                         break;
5002                 }
5003         case SCTP_RTOINFO:
5004                 {
5005                         struct sctp_rtoinfo *srto;
5006                         uint32_t new_init, new_min, new_max;
5007
5008                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5009                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5010
5011                         if (stcb) {
5012                                 if (srto->srto_initial)
5013                                         new_init = srto->srto_initial;
5014                                 else
5015                                         new_init = stcb->asoc.initial_rto;
5016                                 if (srto->srto_max)
5017                                         new_max = srto->srto_max;
5018                                 else
5019                                         new_max = stcb->asoc.maxrto;
5020                                 if (srto->srto_min)
5021                                         new_min = srto->srto_min;
5022                                 else
5023                                         new_min = stcb->asoc.minrto;
5024                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5025                                         stcb->asoc.initial_rto = new_init;
5026                                         stcb->asoc.maxrto = new_max;
5027                                         stcb->asoc.minrto = new_min;
5028                                 } else {
5029                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5030                                         error = EINVAL;
5031                                 }
5032                                 SCTP_TCB_UNLOCK(stcb);
5033                         } else {
5034                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5035                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5036                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5037                                         SCTP_INP_WLOCK(inp);
5038                                         if (srto->srto_initial)
5039                                                 new_init = srto->srto_initial;
5040                                         else
5041                                                 new_init = inp->sctp_ep.initial_rto;
5042                                         if (srto->srto_max)
5043                                                 new_max = srto->srto_max;
5044                                         else
5045                                                 new_max = inp->sctp_ep.sctp_maxrto;
5046                                         if (srto->srto_min)
5047                                                 new_min = srto->srto_min;
5048                                         else
5049                                                 new_min = inp->sctp_ep.sctp_minrto;
5050                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5051                                                 inp->sctp_ep.initial_rto = new_init;
5052                                                 inp->sctp_ep.sctp_maxrto = new_max;
5053                                                 inp->sctp_ep.sctp_minrto = new_min;
5054                                         } else {
5055                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5056                                                 error = EINVAL;
5057                                         }
5058                                         SCTP_INP_WUNLOCK(inp);
5059                                 } else {
5060                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5061                                         error = EINVAL;
5062                                 }
5063                         }
5064                         break;
5065                 }
5066         case SCTP_ASSOCINFO:
5067                 {
5068                         struct sctp_assocparams *sasoc;
5069
5070                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5071                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5072                         if (sasoc->sasoc_cookie_life) {
5073                                 /* boundary check the cookie life */
5074                                 if (sasoc->sasoc_cookie_life < 1000)
5075                                         sasoc->sasoc_cookie_life = 1000;
5076                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5077                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5078                                 }
5079                         }
5080                         if (stcb) {
5081                                 if (sasoc->sasoc_asocmaxrxt)
5082                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5083                                 if (sasoc->sasoc_cookie_life) {
5084                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5085                                 }
5086                                 SCTP_TCB_UNLOCK(stcb);
5087                         } else {
5088                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5089                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5090                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5091                                         SCTP_INP_WLOCK(inp);
5092                                         if (sasoc->sasoc_asocmaxrxt)
5093                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5094                                         if (sasoc->sasoc_cookie_life) {
5095                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5096                                         }
5097                                         SCTP_INP_WUNLOCK(inp);
5098                                 } else {
5099                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5100                                         error = EINVAL;
5101                                 }
5102                         }
5103                         break;
5104                 }
5105         case SCTP_INITMSG:
5106                 {
5107                         struct sctp_initmsg *sinit;
5108
5109                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5110                         SCTP_INP_WLOCK(inp);
5111                         if (sinit->sinit_num_ostreams)
5112                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5113
5114                         if (sinit->sinit_max_instreams)
5115                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5116
5117                         if (sinit->sinit_max_attempts)
5118                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5119
5120                         if (sinit->sinit_max_init_timeo)
5121                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5122                         SCTP_INP_WUNLOCK(inp);
5123                         break;
5124                 }
5125         case SCTP_PRIMARY_ADDR:
5126                 {
5127                         struct sctp_setprim *spa;
5128                         struct sctp_nets *net;
5129
5130                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5131                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5132
5133                         net = NULL;
5134                         if (stcb) {
5135                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
5136                         } else {
5137                                 /*
5138                                  * We increment here since
5139                                  * sctp_findassociation_ep_addr() wil do a
5140                                  * decrement if it finds the stcb as long as
5141                                  * the locked tcb (last argument) is NOT a
5142                                  * TCB.. aka NULL.
5143                                  */
5144                                 SCTP_INP_INCR_REF(inp);
5145                                 stcb = sctp_findassociation_ep_addr(&inp,
5146                                     (struct sockaddr *)&spa->ssp_addr,
5147                                     &net, NULL, NULL);
5148                                 if (stcb == NULL) {
5149                                         SCTP_INP_DECR_REF(inp);
5150                                 }
5151                         }
5152
5153                         if ((stcb) && (net)) {
5154                                 if ((net != stcb->asoc.primary_destination) &&
5155                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5156                                         /* Ok we need to set it */
5157                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5158                                                 if ((stcb->asoc.alternate) &&
5159                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5160                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5161                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5162                                                         stcb->asoc.alternate = NULL;
5163                                                 }
5164                                         }
5165                                 }
5166                         } else {
5167                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5168                                 error = EINVAL;
5169                         }
5170                         if (stcb) {
5171                                 SCTP_TCB_UNLOCK(stcb);
5172                         }
5173                         break;
5174                 }
5175         case SCTP_SET_DYNAMIC_PRIMARY:
5176                 {
5177                         union sctp_sockstore *ss;
5178
5179                         error = priv_check(curthread,
5180                             PRIV_NETINET_RESERVEDPORT);
5181                         if (error)
5182                                 break;
5183
5184                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5185                         /* SUPER USER CHECK? */
5186                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5187                         break;
5188                 }
5189         case SCTP_SET_PEER_PRIMARY_ADDR:
5190                 {
5191                         struct sctp_setpeerprim *sspp;
5192
5193                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5194                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5195                         if (stcb != NULL) {
5196                                 struct sctp_ifa *ifa;
5197
5198                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5199                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5200                                 if (ifa == NULL) {
5201                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5202                                         error = EINVAL;
5203                                         goto out_of_it;
5204                                 }
5205                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5206                                         /*
5207                                          * Must validate the ifa found is in
5208                                          * our ep
5209                                          */
5210                                         struct sctp_laddr *laddr;
5211                                         int found = 0;
5212
5213                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5214                                                 if (laddr->ifa == NULL) {
5215                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5216                                                             __FUNCTION__);
5217                                                         continue;
5218                                                 }
5219                                                 if (laddr->ifa == ifa) {
5220                                                         found = 1;
5221                                                         break;
5222                                                 }
5223                                         }
5224                                         if (!found) {
5225                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5226                                                 error = EINVAL;
5227                                                 goto out_of_it;
5228                                         }
5229                                 }
5230                                 if (sctp_set_primary_ip_address_sa(stcb,
5231                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5232                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5233                                         error = EINVAL;
5234                                 }
5235                 out_of_it:
5236                                 SCTP_TCB_UNLOCK(stcb);
5237                         } else {
5238                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5239                                 error = EINVAL;
5240                         }
5241                         break;
5242                 }
5243         case SCTP_BINDX_ADD_ADDR:
5244                 {
5245                         struct sctp_getaddresses *addrs;
5246                         size_t sz;
5247                         struct thread *td;
5248
5249                         td = (struct thread *)p;
5250                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5251                             optsize);
5252 #ifdef INET
5253                         if (addrs->addr->sa_family == AF_INET) {
5254                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5255                                 if (optsize < sz) {
5256                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5257                                         error = EINVAL;
5258                                         break;
5259                                 }
5260                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5261                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5262                                         break;
5263                                 }
5264                         } else
5265 #endif
5266 #ifdef INET6
5267                         if (addrs->addr->sa_family == AF_INET6) {
5268                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5269                                 if (optsize < sz) {
5270                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5271                                         error = EINVAL;
5272                                         break;
5273                                 }
5274                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5275                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5276                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5277                                         break;
5278                                 }
5279                         } else
5280 #endif
5281                         {
5282                                 error = EAFNOSUPPORT;
5283                                 break;
5284                         }
5285                         sctp_bindx_add_address(so, inp, addrs->addr,
5286                             addrs->sget_assoc_id, vrf_id,
5287                             &error, p);
5288                         break;
5289                 }
5290         case SCTP_BINDX_REM_ADDR:
5291                 {
5292                         struct sctp_getaddresses *addrs;
5293                         size_t sz;
5294                         struct thread *td;
5295
5296                         td = (struct thread *)p;
5297
5298                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5299 #ifdef INET
5300                         if (addrs->addr->sa_family == AF_INET) {
5301                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5302                                 if (optsize < sz) {
5303                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5304                                         error = EINVAL;
5305                                         break;
5306                                 }
5307                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5308                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5309                                         break;
5310                                 }
5311                         } else
5312 #endif
5313 #ifdef INET6
5314                         if (addrs->addr->sa_family == AF_INET6) {
5315                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5316                                 if (optsize < sz) {
5317                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5318                                         error = EINVAL;
5319                                         break;
5320                                 }
5321                                 if (td != NULL &&
5322                                     (error = prison_local_ip6(td->td_ucred,
5323                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5324                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5325                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5326                                         break;
5327                                 }
5328                         } else
5329 #endif
5330                         {
5331                                 error = EAFNOSUPPORT;
5332                                 break;
5333                         }
5334                         sctp_bindx_delete_address(inp, addrs->addr,
5335                             addrs->sget_assoc_id, vrf_id,
5336                             &error);
5337                         break;
5338                 }
5339         case SCTP_EVENT:
5340                 {
5341                         struct sctp_event *event;
5342                         uint32_t event_type;
5343
5344                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5345                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5346                         switch (event->se_type) {
5347                         case SCTP_ASSOC_CHANGE:
5348                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5349                                 break;
5350                         case SCTP_PEER_ADDR_CHANGE:
5351                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5352                                 break;
5353                         case SCTP_REMOTE_ERROR:
5354                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5355                                 break;
5356                         case SCTP_SEND_FAILED:
5357                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5358                                 break;
5359                         case SCTP_SHUTDOWN_EVENT:
5360                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5361                                 break;
5362                         case SCTP_ADAPTATION_INDICATION:
5363                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5364                                 break;
5365                         case SCTP_PARTIAL_DELIVERY_EVENT:
5366                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5367                                 break;
5368                         case SCTP_AUTHENTICATION_EVENT:
5369                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5370                                 break;
5371                         case SCTP_STREAM_RESET_EVENT:
5372                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5373                                 break;
5374                         case SCTP_SENDER_DRY_EVENT:
5375                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5376                                 break;
5377                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5378                                 event_type = 0;
5379                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5380                                 error = ENOTSUP;
5381                                 break;
5382                         default:
5383                                 event_type = 0;
5384                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5385                                 error = EINVAL;
5386                                 break;
5387                         }
5388                         if (event_type > 0) {
5389                                 if (stcb) {
5390                                         if (event->se_on) {
5391                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5392                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5393                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5394                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5395                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5396                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5397                                                         }
5398                                                 }
5399                                         } else {
5400                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5401                                         }
5402                                         SCTP_TCB_UNLOCK(stcb);
5403                                 } else {
5404                                         /*
5405                                          * We don't want to send up a storm
5406                                          * of events, so return an error for
5407                                          * sender dry events
5408                                          */
5409                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5410                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5411                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5412                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5413                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5414                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5415                                                 error = ENOTSUP;
5416                                                 break;
5417                                         }
5418                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5419                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5420                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5421                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5422                                                 SCTP_INP_WLOCK(inp);
5423                                                 if (event->se_on) {
5424                                                         sctp_feature_on(inp, event_type);
5425                                                 } else {
5426                                                         sctp_feature_off(inp, event_type);
5427                                                 }
5428                                                 SCTP_INP_WUNLOCK(inp);
5429                                         }
5430                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5431                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5432                                                 SCTP_INP_RLOCK(inp);
5433                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5434                                                         SCTP_TCB_LOCK(stcb);
5435                                                         if (event->se_on) {
5436                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5437                                                         } else {
5438                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5439                                                         }
5440                                                         SCTP_TCB_UNLOCK(stcb);
5441                                                 }
5442                                                 SCTP_INP_RUNLOCK(inp);
5443                                         }
5444                                 }
5445                         }
5446                         break;
5447                 }
5448         case SCTP_RECVRCVINFO:
5449                 {
5450                         int *onoff;
5451
5452                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5453                         SCTP_INP_WLOCK(inp);
5454                         if (*onoff != 0) {
5455                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5456                         } else {
5457                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5458                         }
5459                         SCTP_INP_WUNLOCK(inp);
5460                         break;
5461                 }
5462         case SCTP_RECVNXTINFO:
5463                 {
5464                         int *onoff;
5465
5466                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5467                         SCTP_INP_WLOCK(inp);
5468                         if (*onoff != 0) {
5469                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5470                         } else {
5471                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5472                         }
5473                         SCTP_INP_WUNLOCK(inp);
5474                         break;
5475                 }
5476         case SCTP_DEFAULT_SNDINFO:
5477                 {
5478                         struct sctp_sndinfo *info;
5479                         uint16_t policy;
5480
5481                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5482                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5483
5484                         if (stcb) {
5485                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5486                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5487                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5488                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5489                                         stcb->asoc.def_send.sinfo_flags |= policy;
5490                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5491                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5492                                 } else {
5493                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5494                                         error = EINVAL;
5495                                 }
5496                                 SCTP_TCB_UNLOCK(stcb);
5497                         } else {
5498                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5499                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5500                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5501                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5502                                         SCTP_INP_WLOCK(inp);
5503                                         inp->def_send.sinfo_stream = info->snd_sid;
5504                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5505                                         inp->def_send.sinfo_flags = info->snd_flags;
5506                                         inp->def_send.sinfo_flags |= policy;
5507                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5508                                         inp->def_send.sinfo_context = info->snd_context;
5509                                         SCTP_INP_WUNLOCK(inp);
5510                                 }
5511                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5512                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5513                                         SCTP_INP_RLOCK(inp);
5514                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5515                                                 SCTP_TCB_LOCK(stcb);
5516                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5517                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5518                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5519                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5520                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5521                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5522                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5523                                                 }
5524                                                 SCTP_TCB_UNLOCK(stcb);
5525                                         }
5526                                         SCTP_INP_RUNLOCK(inp);
5527                                 }
5528                         }
5529                         break;
5530                 }
5531         case SCTP_DEFAULT_PRINFO:
5532                 {
5533                         struct sctp_default_prinfo *info;
5534
5535                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5536                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5537
5538                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5539                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5540                                 error = EINVAL;
5541                                 break;
5542                         }
5543                         if (stcb) {
5544                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5545                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5546                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5547                                 SCTP_TCB_UNLOCK(stcb);
5548                         } else {
5549                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5550                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5551                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5552                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5553                                         SCTP_INP_WLOCK(inp);
5554                                         inp->def_send.sinfo_flags &= 0xfff0;
5555                                         inp->def_send.sinfo_flags |= info->pr_policy;
5556                                         inp->def_send.sinfo_timetolive = info->pr_value;
5557                                         SCTP_INP_WUNLOCK(inp);
5558                                 }
5559                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5560                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5561                                         SCTP_INP_RLOCK(inp);
5562                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5563                                                 SCTP_TCB_LOCK(stcb);
5564                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5565                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5566                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5567                                                 SCTP_TCB_UNLOCK(stcb);
5568                                         }
5569                                         SCTP_INP_RUNLOCK(inp);
5570                                 }
5571                         }
5572                         break;
5573                 }
5574         case SCTP_PEER_ADDR_THLDS:
5575                 /* Applies to the specific association */
5576                 {
5577                         struct sctp_paddrthlds *thlds;
5578                         struct sctp_nets *net;
5579
5580                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5581                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5582                         net = NULL;
5583                         if (stcb) {
5584                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5585                         } else {
5586                                 /*
5587                                  * We increment here since
5588                                  * sctp_findassociation_ep_addr() wil do a
5589                                  * decrement if it finds the stcb as long as
5590                                  * the locked tcb (last argument) is NOT a
5591                                  * TCB.. aka NULL.
5592                                  */
5593                                 SCTP_INP_INCR_REF(inp);
5594                                 stcb = sctp_findassociation_ep_addr(&inp,
5595                                     (struct sockaddr *)&thlds->spt_assoc_id,
5596                                     &net, NULL, NULL);
5597                                 if (stcb == NULL) {
5598                                         SCTP_INP_DECR_REF(inp);
5599                                 }
5600                         }
5601                         if (stcb && (net == NULL)) {
5602                                 struct sockaddr *sa;
5603
5604                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5605 #ifdef INET
5606                                 if (sa->sa_family == AF_INET) {
5607
5608                                         struct sockaddr_in *sin;
5609
5610                                         sin = (struct sockaddr_in *)sa;
5611                                         if (sin->sin_addr.s_addr) {
5612                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5613                                                 SCTP_TCB_UNLOCK(stcb);
5614                                                 error = EINVAL;
5615                                                 break;
5616                                         }
5617                                 } else
5618 #endif
5619 #ifdef INET6
5620                                 if (sa->sa_family == AF_INET6) {
5621                                         struct sockaddr_in6 *sin6;
5622
5623                                         sin6 = (struct sockaddr_in6 *)sa;
5624                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5625                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5626                                                 SCTP_TCB_UNLOCK(stcb);
5627                                                 error = EINVAL;
5628                                                 break;
5629                                         }
5630                                 } else
5631 #endif
5632                                 {
5633                                         error = EAFNOSUPPORT;
5634                                         SCTP_TCB_UNLOCK(stcb);
5635                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5636                                         break;
5637                                 }
5638                         }
5639                         if (stcb) {
5640                                 if (net) {
5641                                         if (net->dest_state & SCTP_ADDR_PF) {
5642                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5643                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5644                                                         net->dest_state &= ~SCTP_ADDR_PF;
5645                                                 }
5646                                         } else {
5647                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5648                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5649                                                         net->dest_state |= SCTP_ADDR_PF;
5650                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5651                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5652                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5653                                                 }
5654                                         }
5655                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5656                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5657                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5658                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5659                                                 }
5660                                         } else {
5661                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5662                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5663                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5664                                                 }
5665                                         }
5666                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5667                                         net->pf_threshold = thlds->spt_pathpfthld;
5668                                 } else {
5669                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5670                                                 if (net->dest_state & SCTP_ADDR_PF) {
5671                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5672                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5673                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5674                                                         }
5675                                                 } else {
5676                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5677                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5678                                                                 net->dest_state |= SCTP_ADDR_PF;
5679                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5680                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5681                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5682                                                         }
5683                                                 }
5684                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5685                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5686                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5687                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5688                                                         }
5689                                                 } else {
5690                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5691                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5692                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5693                                                         }
5694                                                 }
5695                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5696                                                 net->pf_threshold = thlds->spt_pathpfthld;
5697                                         }
5698                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5699                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5700                                 }
5701                         } else {
5702                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5703                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5704                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5705                                         SCTP_INP_WLOCK(inp);
5706                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5707                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5708                                         SCTP_INP_WUNLOCK(inp);
5709                                 } else {
5710                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5711                                         error = EINVAL;
5712                                 }
5713                         }
5714                         break;
5715                 }
5716         case SCTP_REMOTE_UDP_ENCAPS_PORT:
5717                 {
5718                         struct sctp_udpencaps *encaps;
5719                         struct sctp_nets *net;
5720
5721                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
5722                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
5723                         if (stcb) {
5724                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
5725                         } else {
5726                                 /*
5727                                  * We increment here since
5728                                  * sctp_findassociation_ep_addr() wil do a
5729                                  * decrement if it finds the stcb as long as
5730                                  * the locked tcb (last argument) is NOT a
5731                                  * TCB.. aka NULL.
5732                                  */
5733                                 net = NULL;
5734                                 SCTP_INP_INCR_REF(inp);
5735                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
5736                                 if (stcb == NULL) {
5737                                         SCTP_INP_DECR_REF(inp);
5738                                 }
5739                         }
5740                         if (stcb && (net == NULL)) {
5741                                 struct sockaddr *sa;
5742
5743                                 sa = (struct sockaddr *)&encaps->sue_address;
5744 #ifdef INET
5745                                 if (sa->sa_family == AF_INET) {
5746
5747                                         struct sockaddr_in *sin;
5748
5749                                         sin = (struct sockaddr_in *)sa;
5750                                         if (sin->sin_addr.s_addr) {
5751                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5752                                                 SCTP_TCB_UNLOCK(stcb);
5753                                                 error = EINVAL;
5754                                                 break;
5755                                         }
5756                                 } else
5757 #endif
5758 #ifdef INET6
5759                                 if (sa->sa_family == AF_INET6) {
5760                                         struct sockaddr_in6 *sin6;
5761
5762                                         sin6 = (struct sockaddr_in6 *)sa;
5763                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5764                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5765                                                 SCTP_TCB_UNLOCK(stcb);
5766                                                 error = EINVAL;
5767                                                 break;
5768                                         }
5769                                 } else
5770 #endif
5771                                 {
5772                                         error = EAFNOSUPPORT;
5773                                         SCTP_TCB_UNLOCK(stcb);
5774                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5775                                         break;
5776                                 }
5777                         }
5778                         if (stcb) {
5779                                 if (net) {
5780                                         net->port = encaps->sue_port;
5781                                 } else {
5782                                         stcb->asoc.port = encaps->sue_port;
5783                                 }
5784                                 SCTP_TCB_UNLOCK(stcb);
5785                         } else {
5786                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5787                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5788                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
5789                                         SCTP_INP_WLOCK(inp);
5790                                         inp->sctp_ep.port = encaps->sue_port;
5791                                         SCTP_INP_WUNLOCK(inp);
5792                                 } else {
5793                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5794                                         error = EINVAL;
5795                                 }
5796                         }
5797                         break;
5798                 }
5799         default:
5800                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5801                 error = ENOPROTOOPT;
5802                 break;
5803         }                       /* end switch (opt) */
5804         return (error);
5805 }
5806
5807 int
5808 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5809 {
5810         void *optval = NULL;
5811         size_t optsize = 0;
5812         struct sctp_inpcb *inp;
5813         void *p;
5814         int error = 0;
5815
5816         if (sopt->sopt_level != IPPROTO_SCTP) {
5817                 /* wrong proto level... send back up to IP */
5818 #ifdef INET6
5819                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5820                         error = ip6_ctloutput(so, sopt);
5821 #endif                          /* INET6 */
5822 #if defined(INET) && defined (INET6)
5823                 else
5824 #endif
5825 #ifdef INET
5826                         error = ip_ctloutput(so, sopt);
5827 #endif
5828                 return (error);
5829         }
5830         inp = (struct sctp_inpcb *)so->so_pcb;
5831         optsize = sopt->sopt_valsize;
5832         if (optsize) {
5833                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5834                 if (optval == NULL) {
5835                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5836                         return (ENOBUFS);
5837                 }
5838                 error = sooptcopyin(sopt, optval, optsize, optsize);
5839                 if (error) {
5840                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5841                         goto out;
5842                 }
5843         }
5844         p = (void *)sopt->sopt_td;
5845         if (sopt->sopt_dir == SOPT_SET) {
5846                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5847         } else if (sopt->sopt_dir == SOPT_GET) {
5848                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5849         } else {
5850                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5851                 error = EINVAL;
5852         }
5853         if ((error == 0) && (optval != NULL)) {
5854                 error = sooptcopyout(sopt, optval, optsize);
5855                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5856         } else if (optval != NULL) {
5857                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5858         }
5859 out:
5860         return (error);
5861 }
5862
5863 #ifdef INET
5864 static int
5865 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5866 {
5867         int error = 0;
5868         int create_lock_on = 0;
5869         uint32_t vrf_id;
5870         struct sctp_inpcb *inp;
5871         struct sctp_tcb *stcb = NULL;
5872
5873         inp = (struct sctp_inpcb *)so->so_pcb;
5874         if (inp == NULL) {
5875                 /* I made the same as TCP since we are not setup? */
5876                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5877                 return (ECONNRESET);
5878         }
5879         if (addr == NULL) {
5880                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5881                 return EINVAL;
5882         }
5883         switch (addr->sa_family) {
5884 #ifdef INET6
5885         case AF_INET6:
5886                 {
5887                         struct sockaddr_in6 *sin6p;
5888
5889                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5890                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5891                                 return (EINVAL);
5892                         }
5893                         sin6p = (struct sockaddr_in6 *)addr;
5894                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5895                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5896                                 return (error);
5897                         }
5898                         break;
5899                 }
5900 #endif
5901 #ifdef INET
5902         case AF_INET:
5903                 {
5904                         struct sockaddr_in *sinp;
5905
5906                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5908                                 return (EINVAL);
5909                         }
5910                         sinp = (struct sockaddr_in *)addr;
5911                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5912                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5913                                 return (error);
5914                         }
5915                         break;
5916                 }
5917 #endif
5918         default:
5919                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5920                 return (EAFNOSUPPORT);
5921         }
5922         SCTP_INP_INCR_REF(inp);
5923         SCTP_ASOC_CREATE_LOCK(inp);
5924         create_lock_on = 1;
5925
5926
5927         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5928             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5929                 /* Should I really unlock ? */
5930                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5931                 error = EFAULT;
5932                 goto out_now;
5933         }
5934 #ifdef INET6
5935         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5936             (addr->sa_family == AF_INET6)) {
5937                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5938                 error = EINVAL;
5939                 goto out_now;
5940         }
5941 #endif                          /* INET6 */
5942         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5943             SCTP_PCB_FLAGS_UNBOUND) {
5944                 /* Bind a ephemeral port */
5945                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5946                 if (error) {
5947                         goto out_now;
5948                 }
5949         }
5950         /* Now do we connect? */
5951         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5952             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5953                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5954                 error = EINVAL;
5955                 goto out_now;
5956         }
5957         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5958             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5959                 /* We are already connected AND the TCP model */
5960                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5961                 error = EADDRINUSE;
5962                 goto out_now;
5963         }
5964         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
5965                 SCTP_INP_RLOCK(inp);
5966                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
5967                 SCTP_INP_RUNLOCK(inp);
5968         } else {
5969                 /*
5970                  * We increment here since sctp_findassociation_ep_addr()
5971                  * will do a decrement if it finds the stcb as long as the
5972                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
5973                  */
5974                 SCTP_INP_INCR_REF(inp);
5975                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
5976                 if (stcb == NULL) {
5977                         SCTP_INP_DECR_REF(inp);
5978                 } else {
5979                         SCTP_TCB_UNLOCK(stcb);
5980                 }
5981         }
5982         if (stcb != NULL) {
5983                 /* Already have or am bring up an association */
5984                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
5985                 error = EALREADY;
5986                 goto out_now;
5987         }
5988         vrf_id = inp->def_vrf_id;
5989         /* We are GOOD to go */
5990         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
5991         if (stcb == NULL) {
5992                 /* Gak! no memory */
5993                 goto out_now;
5994         }
5995         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
5996                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
5997                 /* Set the connected flag so we can queue data */
5998                 soisconnecting(so);
5999         }
6000         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6001         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6002
6003         /* initialize authentication parameters for the assoc */
6004         sctp_initialize_auth_params(inp, stcb);
6005
6006         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6007         SCTP_TCB_UNLOCK(stcb);
6008 out_now:
6009         if (create_lock_on) {
6010                 SCTP_ASOC_CREATE_UNLOCK(inp);
6011         }
6012         SCTP_INP_DECR_REF(inp);
6013         return (error);
6014 }
6015
6016 #endif
6017
6018 int
6019 sctp_listen(struct socket *so, int backlog, struct thread *p)
6020 {
6021         /*
6022          * Note this module depends on the protocol processing being called
6023          * AFTER any socket level flags and backlog are applied to the
6024          * socket. The traditional way that the socket flags are applied is
6025          * AFTER protocol processing. We have made a change to the
6026          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6027          * place if the socket API for SCTP is to work properly.
6028          */
6029
6030         int error = 0;
6031         struct sctp_inpcb *inp;
6032
6033         inp = (struct sctp_inpcb *)so->so_pcb;
6034         if (inp == NULL) {
6035                 /* I made the same as TCP since we are not setup? */
6036                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6037                 return (ECONNRESET);
6038         }
6039         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6040                 /* See if we have a listener */
6041                 struct sctp_inpcb *tinp;
6042                 union sctp_sockstore store, *sp;
6043
6044                 sp = &store;
6045                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6046                         /* not bound all */
6047                         struct sctp_laddr *laddr;
6048
6049                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6050                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6051                                 switch (sp->sa.sa_family) {
6052 #ifdef INET
6053                                 case AF_INET:
6054                                         sp->sin.sin_port = inp->sctp_lport;
6055                                         break;
6056 #endif
6057 #ifdef INET6
6058                                 case AF_INET6:
6059                                         sp->sin6.sin6_port = inp->sctp_lport;
6060                                         break;
6061 #endif
6062                                 default:
6063                                         break;
6064                                 }
6065                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6066                                 if (tinp && (tinp != inp) &&
6067                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6068                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6069                                     (tinp->sctp_socket->so_qlimit)) {
6070                                         /*
6071                                          * we have a listener already and
6072                                          * its not this inp.
6073                                          */
6074                                         SCTP_INP_DECR_REF(tinp);
6075                                         return (EADDRINUSE);
6076                                 } else if (tinp) {
6077                                         SCTP_INP_DECR_REF(tinp);
6078                                 }
6079                         }
6080                 } else {
6081                         /* Setup a local addr bound all */
6082                         memset(&store, 0, sizeof(store));
6083                         switch (sp->sa.sa_family) {
6084 #ifdef INET
6085                         case AF_INET:
6086                                 store.sin.sin_port = inp->sctp_lport;
6087                                 break;
6088 #endif
6089 #ifdef INET6
6090                         case AF_INET6:
6091                                 sp->sin6.sin6_port = inp->sctp_lport;
6092                                 break;
6093 #endif
6094                         default:
6095                                 break;
6096                         }
6097 #ifdef INET6
6098                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6099                                 store.sa.sa_family = AF_INET6;
6100                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6101                         }
6102 #endif
6103 #ifdef INET
6104                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6105                                 store.sa.sa_family = AF_INET;
6106                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6107                         }
6108 #endif
6109                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6110                         if (tinp && (tinp != inp) &&
6111                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6112                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6113                             (tinp->sctp_socket->so_qlimit)) {
6114                                 /*
6115                                  * we have a listener already and its not
6116                                  * this inp.
6117                                  */
6118                                 SCTP_INP_DECR_REF(tinp);
6119                                 return (EADDRINUSE);
6120                         } else if (tinp) {
6121                                 SCTP_INP_DECR_REF(inp);
6122                         }
6123                 }
6124         }
6125         SCTP_INP_RLOCK(inp);
6126 #ifdef SCTP_LOCK_LOGGING
6127         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6128                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6129         }
6130 #endif
6131         SOCK_LOCK(so);
6132         error = solisten_proto_check(so);
6133         if (error) {
6134                 SOCK_UNLOCK(so);
6135                 SCTP_INP_RUNLOCK(inp);
6136                 return (error);
6137         }
6138         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6139             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6140                 /*
6141                  * The unlucky case - We are in the tcp pool with this guy.
6142                  * - Someone else is in the main inp slot. - We must move
6143                  * this guy (the listener) to the main slot - We must then
6144                  * move the guy that was listener to the TCP Pool.
6145                  */
6146                 if (sctp_swap_inpcb_for_listen(inp)) {
6147                         goto in_use;
6148                 }
6149         }
6150         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6151             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6152                 /* We are already connected AND the TCP model */
6153 in_use:
6154                 SCTP_INP_RUNLOCK(inp);
6155                 SOCK_UNLOCK(so);
6156                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6157                 return (EADDRINUSE);
6158         }
6159         SCTP_INP_RUNLOCK(inp);
6160         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6161                 /* We must do a bind. */
6162                 SOCK_UNLOCK(so);
6163                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6164                         /* bind error, probably perm */
6165                         return (error);
6166                 }
6167                 SOCK_LOCK(so);
6168         }
6169         /* It appears for 7.0 and on, we must always call this. */
6170         solisten_proto(so, backlog);
6171         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6172                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6173                 so->so_options &= ~SO_ACCEPTCONN;
6174         }
6175         if (backlog == 0) {
6176                 /* turning off listen */
6177                 so->so_options &= ~SO_ACCEPTCONN;
6178         }
6179         SOCK_UNLOCK(so);
6180         return (error);
6181 }
6182
6183 static int sctp_defered_wakeup_cnt = 0;
6184
6185 int
6186 sctp_accept(struct socket *so, struct sockaddr **addr)
6187 {
6188         struct sctp_tcb *stcb;
6189         struct sctp_inpcb *inp;
6190         union sctp_sockstore store;
6191
6192 #ifdef INET6
6193         int error;
6194
6195 #endif
6196         inp = (struct sctp_inpcb *)so->so_pcb;
6197
6198         if (inp == NULL) {
6199                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6200                 return (ECONNRESET);
6201         }
6202         SCTP_INP_RLOCK(inp);
6203         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6204                 SCTP_INP_RUNLOCK(inp);
6205                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6206                 return (EOPNOTSUPP);
6207         }
6208         if (so->so_state & SS_ISDISCONNECTED) {
6209                 SCTP_INP_RUNLOCK(inp);
6210                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6211                 return (ECONNABORTED);
6212         }
6213         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6214         if (stcb == NULL) {
6215                 SCTP_INP_RUNLOCK(inp);
6216                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6217                 return (ECONNRESET);
6218         }
6219         SCTP_TCB_LOCK(stcb);
6220         SCTP_INP_RUNLOCK(inp);
6221         store = stcb->asoc.primary_destination->ro._l_addr;
6222         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6223         SCTP_TCB_UNLOCK(stcb);
6224         switch (store.sa.sa_family) {
6225 #ifdef INET
6226         case AF_INET:
6227                 {
6228                         struct sockaddr_in *sin;
6229
6230                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6231                         if (sin == NULL)
6232                                 return (ENOMEM);
6233                         sin->sin_family = AF_INET;
6234                         sin->sin_len = sizeof(*sin);
6235                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
6236                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
6237                         *addr = (struct sockaddr *)sin;
6238                         break;
6239                 }
6240 #endif
6241 #ifdef INET6
6242         case AF_INET6:
6243                 {
6244                         struct sockaddr_in6 *sin6;
6245
6246                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
6247                         if (sin6 == NULL)
6248                                 return (ENOMEM);
6249                         sin6->sin6_family = AF_INET6;
6250                         sin6->sin6_len = sizeof(*sin6);
6251                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
6252
6253                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
6254                         if ((error = sa6_recoverscope(sin6)) != 0) {
6255                                 SCTP_FREE_SONAME(sin6);
6256                                 return (error);
6257                         }
6258                         *addr = (struct sockaddr *)sin6;
6259                         break;
6260                 }
6261 #endif
6262         default:
6263                 /* TSNH */
6264                 break;
6265         }
6266         /* Wake any delayed sleep action */
6267         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6268                 SCTP_INP_WLOCK(inp);
6269                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6270                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6271                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6272                         SCTP_INP_WUNLOCK(inp);
6273                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6274                         if (sowriteable(inp->sctp_socket)) {
6275                                 sowwakeup_locked(inp->sctp_socket);
6276                         } else {
6277                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6278                         }
6279                         SCTP_INP_WLOCK(inp);
6280                 }
6281                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6282                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6283                         SCTP_INP_WUNLOCK(inp);
6284                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6285                         if (soreadable(inp->sctp_socket)) {
6286                                 sctp_defered_wakeup_cnt++;
6287                                 sorwakeup_locked(inp->sctp_socket);
6288                         } else {
6289                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6290                         }
6291                         SCTP_INP_WLOCK(inp);
6292                 }
6293                 SCTP_INP_WUNLOCK(inp);
6294         }
6295         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6296                 SCTP_TCB_LOCK(stcb);
6297                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6298         }
6299         return (0);
6300 }
6301
6302 #ifdef INET
6303 int
6304 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6305 {
6306         struct sockaddr_in *sin;
6307         uint32_t vrf_id;
6308         struct sctp_inpcb *inp;
6309         struct sctp_ifa *sctp_ifa;
6310
6311         /*
6312          * Do the malloc first in case it blocks.
6313          */
6314         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6315         if (sin == NULL)
6316                 return (ENOMEM);
6317         sin->sin_family = AF_INET;
6318         sin->sin_len = sizeof(*sin);
6319         inp = (struct sctp_inpcb *)so->so_pcb;
6320         if (!inp) {
6321                 SCTP_FREE_SONAME(sin);
6322                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6323                 return (ECONNRESET);
6324         }
6325         SCTP_INP_RLOCK(inp);
6326         sin->sin_port = inp->sctp_lport;
6327         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6328                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6329                         struct sctp_tcb *stcb;
6330                         struct sockaddr_in *sin_a;
6331                         struct sctp_nets *net;
6332                         int fnd;
6333
6334                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6335                         if (stcb == NULL) {
6336                                 goto notConn;
6337                         }
6338                         fnd = 0;
6339                         sin_a = NULL;
6340                         SCTP_TCB_LOCK(stcb);
6341                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6342                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6343                                 if (sin_a == NULL)
6344                                         /* this will make coverity happy */
6345                                         continue;
6346
6347                                 if (sin_a->sin_family == AF_INET) {
6348                                         fnd = 1;
6349                                         break;
6350                                 }
6351                         }
6352                         if ((!fnd) || (sin_a == NULL)) {
6353                                 /* punt */
6354                                 SCTP_TCB_UNLOCK(stcb);
6355                                 goto notConn;
6356                         }
6357                         vrf_id = inp->def_vrf_id;
6358                         sctp_ifa = sctp_source_address_selection(inp,
6359                             stcb,
6360                             (sctp_route_t *) & net->ro,
6361                             net, 0, vrf_id);
6362                         if (sctp_ifa) {
6363                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6364                                 sctp_free_ifa(sctp_ifa);
6365                         }
6366                         SCTP_TCB_UNLOCK(stcb);
6367                 } else {
6368                         /* For the bound all case you get back 0 */
6369         notConn:
6370                         sin->sin_addr.s_addr = 0;
6371                 }
6372
6373         } else {
6374                 /* Take the first IPv4 address in the list */
6375                 struct sctp_laddr *laddr;
6376                 int fnd = 0;
6377
6378                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6379                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6380                                 struct sockaddr_in *sin_a;
6381
6382                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6383                                 sin->sin_addr = sin_a->sin_addr;
6384                                 fnd = 1;
6385                                 break;
6386                         }
6387                 }
6388                 if (!fnd) {
6389                         SCTP_FREE_SONAME(sin);
6390                         SCTP_INP_RUNLOCK(inp);
6391                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6392                         return (ENOENT);
6393                 }
6394         }
6395         SCTP_INP_RUNLOCK(inp);
6396         (*addr) = (struct sockaddr *)sin;
6397         return (0);
6398 }
6399
6400 int
6401 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6402 {
6403         struct sockaddr_in *sin;
6404         int fnd;
6405         struct sockaddr_in *sin_a;
6406         struct sctp_inpcb *inp;
6407         struct sctp_tcb *stcb;
6408         struct sctp_nets *net;
6409
6410         /* Do the malloc first in case it blocks. */
6411         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6412         if (sin == NULL)
6413                 return (ENOMEM);
6414         sin->sin_family = AF_INET;
6415         sin->sin_len = sizeof(*sin);
6416
6417         inp = (struct sctp_inpcb *)so->so_pcb;
6418         if ((inp == NULL) ||
6419             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6420                 /* UDP type and listeners will drop out here */
6421                 SCTP_FREE_SONAME(sin);
6422                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6423                 return (ENOTCONN);
6424         }
6425         SCTP_INP_RLOCK(inp);
6426         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6427         if (stcb) {
6428                 SCTP_TCB_LOCK(stcb);
6429         }
6430         SCTP_INP_RUNLOCK(inp);
6431         if (stcb == NULL) {
6432                 SCTP_FREE_SONAME(sin);
6433                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6434                 return (ECONNRESET);
6435         }
6436         fnd = 0;
6437         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6438                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6439                 if (sin_a->sin_family == AF_INET) {
6440                         fnd = 1;
6441                         sin->sin_port = stcb->rport;
6442                         sin->sin_addr = sin_a->sin_addr;
6443                         break;
6444                 }
6445         }
6446         SCTP_TCB_UNLOCK(stcb);
6447         if (!fnd) {
6448                 /* No IPv4 address */
6449                 SCTP_FREE_SONAME(sin);
6450                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6451                 return (ENOENT);
6452         }
6453         (*addr) = (struct sockaddr *)sin;
6454         return (0);
6455 }
6456
6457 #ifdef INET
6458 struct pr_usrreqs sctp_usrreqs = {
6459         .pru_abort = sctp_abort,
6460         .pru_accept = sctp_accept,
6461         .pru_attach = sctp_attach,
6462         .pru_bind = sctp_bind,
6463         .pru_connect = sctp_connect,
6464         .pru_control = in_control,
6465         .pru_close = sctp_close,
6466         .pru_detach = sctp_close,
6467         .pru_sopoll = sopoll_generic,
6468         .pru_flush = sctp_flush,
6469         .pru_disconnect = sctp_disconnect,
6470         .pru_listen = sctp_listen,
6471         .pru_peeraddr = sctp_peeraddr,
6472         .pru_send = sctp_sendm,
6473         .pru_shutdown = sctp_shutdown,
6474         .pru_sockaddr = sctp_ingetaddr,
6475         .pru_sosend = sctp_sosend,
6476         .pru_soreceive = sctp_soreceive
6477 };
6478
6479 #endif
6480 #endif