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 == 0) {
 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 == 0) {
 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 == 0)
 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 == 0) {
 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 == 0) {
 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 == 0) {
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                         uint8_t *value;
2073
2074                         SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
2075
2076                         SCTP_INP_RLOCK(inp);
2077                         if (inp->sctp_ep.max_burst < 256) {
2078                                 *value = inp->sctp_ep.max_burst;
2079                         } else {
2080                                 *value = 255;
2081                         }
2082                         SCTP_INP_RUNLOCK(inp);
2083                         *optsize = sizeof(uint8_t);
2084                         break;
2085                 }
2086         case SCTP_MAXSEG:
2087                 {
2088                         struct sctp_assoc_value *av;
2089                         int ovh;
2090
2091                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2092                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2093
2094                         if (stcb) {
2095                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2096                                 SCTP_TCB_UNLOCK(stcb);
2097                         } else {
2098                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2099                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2100                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2101                                         SCTP_INP_RLOCK(inp);
2102                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2103                                                 ovh = SCTP_MED_OVERHEAD;
2104                                         } else {
2105                                                 ovh = SCTP_MED_V4_OVERHEAD;
2106                                         }
2107                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2108                                                 av->assoc_value = 0;
2109                                         else
2110                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2111                                         SCTP_INP_RUNLOCK(inp);
2112                                 } else {
2113                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2114                                         error = EINVAL;
2115                                 }
2116                         }
2117                         if (error == 0) {
2118                                 *optsize = sizeof(struct sctp_assoc_value);
2119                         }
2120                         break;
2121                 }
2122         case SCTP_GET_STAT_LOG:
2123                 error = sctp_fill_stat_log(optval, optsize);
2124                 break;
2125         case SCTP_EVENTS:
2126                 {
2127                         struct sctp_event_subscribe *events;
2128
2129                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2130                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2131                         SCTP_INP_RLOCK(inp);
2132                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2133                                 events->sctp_data_io_event = 1;
2134
2135                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2136                                 events->sctp_association_event = 1;
2137
2138                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2139                                 events->sctp_address_event = 1;
2140
2141                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2142                                 events->sctp_send_failure_event = 1;
2143
2144                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2145                                 events->sctp_peer_error_event = 1;
2146
2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2148                                 events->sctp_shutdown_event = 1;
2149
2150                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2151                                 events->sctp_partial_delivery_event = 1;
2152
2153                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2154                                 events->sctp_adaptation_layer_event = 1;
2155
2156                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2157                                 events->sctp_authentication_event = 1;
2158
2159                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2160                                 events->sctp_sender_dry_event = 1;
2161
2162                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2163                                 events->sctp_stream_reset_event = 1;
2164                         SCTP_INP_RUNLOCK(inp);
2165                         *optsize = sizeof(struct sctp_event_subscribe);
2166                         break;
2167                 }
2168         case SCTP_ADAPTATION_LAYER:
2169                 {
2170                         uint32_t *value;
2171
2172                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2173
2174                         SCTP_INP_RLOCK(inp);
2175                         *value = inp->sctp_ep.adaptation_layer_indicator;
2176                         SCTP_INP_RUNLOCK(inp);
2177                         *optsize = sizeof(uint32_t);
2178                         break;
2179                 }
2180         case SCTP_SET_INITIAL_DBG_SEQ:
2181                 {
2182                         uint32_t *value;
2183
2184                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2185                         SCTP_INP_RLOCK(inp);
2186                         *value = inp->sctp_ep.initial_sequence_debug;
2187                         SCTP_INP_RUNLOCK(inp);
2188                         *optsize = sizeof(uint32_t);
2189                         break;
2190                 }
2191         case SCTP_GET_LOCAL_ADDR_SIZE:
2192                 {
2193                         uint32_t *value;
2194
2195                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2196                         SCTP_INP_RLOCK(inp);
2197                         *value = sctp_count_max_addresses(inp);
2198                         SCTP_INP_RUNLOCK(inp);
2199                         *optsize = sizeof(uint32_t);
2200                         break;
2201                 }
2202         case SCTP_GET_REMOTE_ADDR_SIZE:
2203                 {
2204                         uint32_t *value;
2205                         size_t size;
2206                         struct sctp_nets *net;
2207
2208                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2209                         /* FIXME MT: change to sctp_assoc_value? */
2210                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2211
2212                         if (stcb) {
2213                                 size = 0;
2214                                 /* Count the sizes */
2215                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2216                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2217                                                 size += sizeof(struct sockaddr_in6);
2218                                         } else {
2219                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2220 #ifdef INET
2221                                                 case AF_INET:
2222                                                         size += sizeof(struct sockaddr_in);
2223                                                         break;
2224 #endif
2225 #ifdef INET6
2226                                                 case AF_INET6:
2227                                                         size += sizeof(struct sockaddr_in6);
2228                                                         break;
2229 #endif
2230                                                 default:
2231                                                         break;
2232                                                 }
2233                                         }
2234                                 }
2235                                 SCTP_TCB_UNLOCK(stcb);
2236                                 *value = (uint32_t) size;
2237                                 *optsize = sizeof(uint32_t);
2238                         } else {
2239                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2240                                 error = ENOTCONN;
2241                         }
2242                         break;
2243                 }
2244         case SCTP_GET_PEER_ADDRESSES:
2245                 /*
2246                  * Get the address information, an array is passed in to
2247                  * fill up we pack it.
2248                  */
2249                 {
2250                         size_t cpsz, left;
2251                         struct sockaddr_storage *sas;
2252                         struct sctp_nets *net;
2253                         struct sctp_getaddresses *saddr;
2254
2255                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2256                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2257
2258                         if (stcb) {
2259                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2260                                 *optsize = sizeof(struct sctp_getaddresses);
2261                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2262
2263                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2264                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2265                                                 cpsz = sizeof(struct sockaddr_in6);
2266                                         } else {
2267                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2268 #ifdef INET
2269                                                 case AF_INET:
2270                                                         cpsz = sizeof(struct sockaddr_in);
2271                                                         break;
2272 #endif
2273 #ifdef INET6
2274                                                 case AF_INET6:
2275                                                         cpsz = sizeof(struct sockaddr_in6);
2276                                                         break;
2277 #endif
2278                                                 default:
2279                                                         cpsz = 0;
2280                                                         break;
2281                                                 }
2282                                         }
2283                                         if (cpsz == 0) {
2284                                                 break;
2285                                         }
2286                                         if (left < cpsz) {
2287                                                 /* not enough room. */
2288                                                 break;
2289                                         }
2290 #if defined(INET) && defined(INET6)
2291                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2292                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2293                                                 /* Must map the address */
2294                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2295                                                     (struct sockaddr_in6 *)sas);
2296                                         } else {
2297 #endif
2298                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2299 #if defined(INET) && defined(INET6)
2300                                         }
2301 #endif
2302                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2303
2304                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2305                                         left -= cpsz;
2306                                         *optsize += cpsz;
2307                                 }
2308                                 SCTP_TCB_UNLOCK(stcb);
2309                         } else {
2310                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2311                                 error = ENOENT;
2312                         }
2313                         break;
2314                 }
2315         case SCTP_GET_LOCAL_ADDRESSES:
2316                 {
2317                         size_t limit, actual;
2318                         struct sockaddr_storage *sas;
2319                         struct sctp_getaddresses *saddr;
2320
2321                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2322                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2323
2324                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2325                         limit = *optsize - sizeof(sctp_assoc_t);
2326                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2327                         if (stcb) {
2328                                 SCTP_TCB_UNLOCK(stcb);
2329                         }
2330                         *optsize = sizeof(struct sockaddr_storage) + actual;
2331                         break;
2332                 }
2333         case SCTP_PEER_ADDR_PARAMS:
2334                 {
2335                         struct sctp_paddrparams *paddrp;
2336                         struct sctp_nets *net;
2337
2338                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2339                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2340
2341                         net = NULL;
2342                         if (stcb) {
2343                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2344                         } else {
2345                                 /*
2346                                  * We increment here since
2347                                  * sctp_findassociation_ep_addr() wil do a
2348                                  * decrement if it finds the stcb as long as
2349                                  * the locked tcb (last argument) is NOT a
2350                                  * TCB.. aka NULL.
2351                                  */
2352                                 SCTP_INP_INCR_REF(inp);
2353                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2354                                 if (stcb == NULL) {
2355                                         SCTP_INP_DECR_REF(inp);
2356                                 }
2357                         }
2358                         if (stcb && (net == NULL)) {
2359                                 struct sockaddr *sa;
2360
2361                                 sa = (struct sockaddr *)&paddrp->spp_address;
2362 #ifdef INET
2363                                 if (sa->sa_family == AF_INET) {
2364                                         struct sockaddr_in *sin;
2365
2366                                         sin = (struct sockaddr_in *)sa;
2367                                         if (sin->sin_addr.s_addr) {
2368                                                 error = EINVAL;
2369                                                 SCTP_TCB_UNLOCK(stcb);
2370                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2371                                                 break;
2372                                         }
2373                                 } else
2374 #endif
2375 #ifdef INET6
2376                                 if (sa->sa_family == AF_INET6) {
2377                                         struct sockaddr_in6 *sin6;
2378
2379                                         sin6 = (struct sockaddr_in6 *)sa;
2380                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2381                                                 error = EINVAL;
2382                                                 SCTP_TCB_UNLOCK(stcb);
2383                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2384                                                 break;
2385                                         }
2386                                 } else
2387 #endif
2388                                 {
2389                                         error = EAFNOSUPPORT;
2390                                         SCTP_TCB_UNLOCK(stcb);
2391                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2392                                         break;
2393                                 }
2394                         }
2395                         if (stcb) {
2396                                 /* Applies to the specific association */
2397                                 paddrp->spp_flags = 0;
2398                                 if (net) {
2399                                         int ovh;
2400
2401                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2402                                                 ovh = SCTP_MED_OVERHEAD;
2403                                         } else {
2404                                                 ovh = SCTP_MED_V4_OVERHEAD;
2405                                         }
2406
2407                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2408                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2409                                         paddrp->spp_pathmtu = net->mtu - ovh;
2410                                         /* get flags for HB */
2411                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2412                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2413                                         } else {
2414                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2415                                         }
2416                                         /* get flags for PMTU */
2417                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2418                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2419                                         } else {
2420                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2421                                         }
2422                                         if (net->dscp & 0x01) {
2423                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2424                                                 paddrp->spp_flags |= SPP_DSCP;
2425                                         }
2426 #ifdef INET6
2427                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2428                                             (net->flowlabel & 0x80000000)) {
2429                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2430                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2431                                         }
2432 #endif
2433                                 } else {
2434                                         /*
2435                                          * No destination so return default
2436                                          * value
2437                                          */
2438                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2439                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2440                                         if (stcb->asoc.default_dscp & 0x01) {
2441                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2442                                                 paddrp->spp_flags |= SPP_DSCP;
2443                                         }
2444 #ifdef INET6
2445                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2446                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2447                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2448                                         }
2449 #endif
2450                                         /* default settings should be these */
2451                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2452                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2453                                         } else {
2454                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2455                                         }
2456                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2457                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2458                                         } else {
2459                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2460                                         }
2461                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2462                                 }
2463                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2464                                 SCTP_TCB_UNLOCK(stcb);
2465                         } else {
2466                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2467                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2468                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2469                                         /* Use endpoint defaults */
2470                                         SCTP_INP_RLOCK(inp);
2471                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2472                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2473                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2474                                         /* get inp's default */
2475                                         if (inp->sctp_ep.default_dscp & 0x01) {
2476                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2477                                                 paddrp->spp_flags |= SPP_DSCP;
2478                                         }
2479 #ifdef INET6
2480                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2481                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2482                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2483                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2484                                         }
2485 #endif
2486                                         /* can't return this */
2487                                         paddrp->spp_pathmtu = 0;
2488
2489                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2490                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2491                                         } else {
2492                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2493                                         }
2494                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2495                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2496                                         } else {
2497                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2498                                         }
2499                                         SCTP_INP_RUNLOCK(inp);
2500                                 } else {
2501                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2502                                         error = EINVAL;
2503                                 }
2504                         }
2505                         if (error == 0) {
2506                                 *optsize = sizeof(struct sctp_paddrparams);
2507                         }
2508                         break;
2509                 }
2510         case SCTP_GET_PEER_ADDR_INFO:
2511                 {
2512                         struct sctp_paddrinfo *paddri;
2513                         struct sctp_nets *net;
2514
2515                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2516                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2517
2518                         net = NULL;
2519                         if (stcb) {
2520                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2521                         } else {
2522                                 /*
2523                                  * We increment here since
2524                                  * sctp_findassociation_ep_addr() wil do a
2525                                  * decrement if it finds the stcb as long as
2526                                  * the locked tcb (last argument) is NOT a
2527                                  * TCB.. aka NULL.
2528                                  */
2529                                 SCTP_INP_INCR_REF(inp);
2530                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2531                                 if (stcb == NULL) {
2532                                         SCTP_INP_DECR_REF(inp);
2533                                 }
2534                         }
2535
2536                         if ((stcb) && (net)) {
2537                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2538                                         /* It's unconfirmed */
2539                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2540                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2541                                         /* It's active */
2542                                         paddri->spinfo_state = SCTP_ACTIVE;
2543                                 } else {
2544                                         /* It's inactive */
2545                                         paddri->spinfo_state = SCTP_INACTIVE;
2546                                 }
2547                                 paddri->spinfo_cwnd = net->cwnd;
2548                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2549                                 paddri->spinfo_rto = net->RTO;
2550                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2551                                 paddri->spinfo_mtu = net->mtu;
2552                                 SCTP_TCB_UNLOCK(stcb);
2553                                 *optsize = sizeof(struct sctp_paddrinfo);
2554                         } else {
2555                                 if (stcb) {
2556                                         SCTP_TCB_UNLOCK(stcb);
2557                                 }
2558                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2559                                 error = ENOENT;
2560                         }
2561                         break;
2562                 }
2563         case SCTP_PCB_STATUS:
2564                 {
2565                         struct sctp_pcbinfo *spcb;
2566
2567                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2568                         sctp_fill_pcbinfo(spcb);
2569                         *optsize = sizeof(struct sctp_pcbinfo);
2570                         break;
2571                 }
2572         case SCTP_STATUS:
2573                 {
2574                         struct sctp_nets *net;
2575                         struct sctp_status *sstat;
2576
2577                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2578                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2579
2580                         if (stcb == NULL) {
2581                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2582                                 error = EINVAL;
2583                                 break;
2584                         }
2585                         /*
2586                          * I think passing the state is fine since
2587                          * sctp_constants.h will be available to the user
2588                          * land.
2589                          */
2590                         sstat->sstat_state = stcb->asoc.state;
2591                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2592                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2593                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2594                         /*
2595                          * We can't include chunks that have been passed to
2596                          * the socket layer. Only things in queue.
2597                          */
2598                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2599                             stcb->asoc.cnt_on_all_streams);
2600
2601
2602                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2603                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2604                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2605                         memcpy(&sstat->sstat_primary.spinfo_address,
2606                             &stcb->asoc.primary_destination->ro._l_addr,
2607                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2608                         net = stcb->asoc.primary_destination;
2609                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2610                         /*
2611                          * Again the user can get info from sctp_constants.h
2612                          * for what the state of the network is.
2613                          */
2614                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2615                                 /* It's unconfirmed */
2616                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2617                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2618                                 /* It's active */
2619                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2620                         } else {
2621                                 /* It's inactive */
2622                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2623                         }
2624                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2625                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2626                         sstat->sstat_primary.spinfo_rto = net->RTO;
2627                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2628                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2629                         SCTP_TCB_UNLOCK(stcb);
2630                         *optsize = sizeof(struct sctp_status);
2631                         break;
2632                 }
2633         case SCTP_RTOINFO:
2634                 {
2635                         struct sctp_rtoinfo *srto;
2636
2637                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2638                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2639
2640                         if (stcb) {
2641                                 srto->srto_initial = stcb->asoc.initial_rto;
2642                                 srto->srto_max = stcb->asoc.maxrto;
2643                                 srto->srto_min = stcb->asoc.minrto;
2644                                 SCTP_TCB_UNLOCK(stcb);
2645                         } else {
2646                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2647                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2648                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2649                                         SCTP_INP_RLOCK(inp);
2650                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2651                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2652                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2653                                         SCTP_INP_RUNLOCK(inp);
2654                                 } else {
2655                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2656                                         error = EINVAL;
2657                                 }
2658                         }
2659                         if (error == 0) {
2660                                 *optsize = sizeof(struct sctp_rtoinfo);
2661                         }
2662                         break;
2663                 }
2664         case SCTP_TIMEOUTS:
2665                 {
2666                         struct sctp_timeouts *stimo;
2667
2668                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2669                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2670
2671                         if (stcb) {
2672                                 stimo->stimo_init = stcb->asoc.timoinit;
2673                                 stimo->stimo_data = stcb->asoc.timodata;
2674                                 stimo->stimo_sack = stcb->asoc.timosack;
2675                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2676                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2677                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2678                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2679                                 SCTP_TCB_UNLOCK(stcb);
2680                                 *optsize = sizeof(struct sctp_timeouts);
2681                         } else {
2682                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2683                                 error = EINVAL;
2684                         }
2685                         break;
2686                 }
2687         case SCTP_ASSOCINFO:
2688                 {
2689                         struct sctp_assocparams *sasoc;
2690
2691                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2692                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2693
2694                         if (stcb) {
2695                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2696                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2697                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2698                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2699                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2700                                 SCTP_TCB_UNLOCK(stcb);
2701                         } else {
2702                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2703                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2704                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2705                                         SCTP_INP_RLOCK(inp);
2706                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2707                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2708                                         sasoc->sasoc_number_peer_destinations = 0;
2709                                         sasoc->sasoc_peer_rwnd = 0;
2710                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2711                                         SCTP_INP_RUNLOCK(inp);
2712                                 } else {
2713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2714                                         error = EINVAL;
2715                                 }
2716                         }
2717                         if (error == 0) {
2718                                 *optsize = sizeof(struct sctp_assocparams);
2719                         }
2720                         break;
2721                 }
2722         case SCTP_DEFAULT_SEND_PARAM:
2723                 {
2724                         struct sctp_sndrcvinfo *s_info;
2725
2726                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2727                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2728
2729                         if (stcb) {
2730                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2731                                 SCTP_TCB_UNLOCK(stcb);
2732                         } else {
2733                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2734                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2735                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2736                                         SCTP_INP_RLOCK(inp);
2737                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2738                                         SCTP_INP_RUNLOCK(inp);
2739                                 } else {
2740                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2741                                         error = EINVAL;
2742                                 }
2743                         }
2744                         if (error == 0) {
2745                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2746                         }
2747                         break;
2748                 }
2749         case SCTP_INITMSG:
2750                 {
2751                         struct sctp_initmsg *sinit;
2752
2753                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2754                         SCTP_INP_RLOCK(inp);
2755                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2756                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2757                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2758                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2759                         SCTP_INP_RUNLOCK(inp);
2760                         *optsize = sizeof(struct sctp_initmsg);
2761                         break;
2762                 }
2763         case SCTP_PRIMARY_ADDR:
2764                 /* we allow a "get" operation on this */
2765                 {
2766                         struct sctp_setprim *ssp;
2767
2768                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2769                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2770
2771                         if (stcb) {
2772                                 /* simply copy out the sockaddr_storage... */
2773                                 int len;
2774
2775                                 len = *optsize;
2776                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2777                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2778
2779                                 memcpy(&ssp->ssp_addr,
2780                                     &stcb->asoc.primary_destination->ro._l_addr,
2781                                     len);
2782                                 SCTP_TCB_UNLOCK(stcb);
2783                                 *optsize = sizeof(struct sctp_setprim);
2784                         } else {
2785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2786                                 error = EINVAL;
2787                         }
2788                         break;
2789                 }
2790         case SCTP_HMAC_IDENT:
2791                 {
2792                         struct sctp_hmacalgo *shmac;
2793                         sctp_hmaclist_t *hmaclist;
2794                         uint32_t size;
2795                         int i;
2796
2797                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2798
2799                         SCTP_INP_RLOCK(inp);
2800                         hmaclist = inp->sctp_ep.local_hmacs;
2801                         if (hmaclist == NULL) {
2802                                 /* no HMACs to return */
2803                                 *optsize = sizeof(*shmac);
2804                                 SCTP_INP_RUNLOCK(inp);
2805                                 break;
2806                         }
2807                         /* is there room for all of the hmac ids? */
2808                         size = sizeof(*shmac) + (hmaclist->num_algo *
2809                             sizeof(shmac->shmac_idents[0]));
2810                         if ((size_t)(*optsize) < size) {
2811                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2812                                 error = EINVAL;
2813                                 SCTP_INP_RUNLOCK(inp);
2814                                 break;
2815                         }
2816                         /* copy in the list */
2817                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2818                         for (i = 0; i < hmaclist->num_algo; i++) {
2819                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2820                         }
2821                         SCTP_INP_RUNLOCK(inp);
2822                         *optsize = size;
2823                         break;
2824                 }
2825         case SCTP_AUTH_ACTIVE_KEY:
2826                 {
2827                         struct sctp_authkeyid *scact;
2828
2829                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2830                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2831
2832                         if (stcb) {
2833                                 /* get the active key on the assoc */
2834                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2835                                 SCTP_TCB_UNLOCK(stcb);
2836                         } else {
2837                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2838                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2839                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2840                                         /* get the endpoint active key */
2841                                         SCTP_INP_RLOCK(inp);
2842                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2843                                         SCTP_INP_RUNLOCK(inp);
2844                                 } else {
2845                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2846                                         error = EINVAL;
2847                                 }
2848                         }
2849                         if (error == 0) {
2850                                 *optsize = sizeof(struct sctp_authkeyid);
2851                         }
2852                         break;
2853                 }
2854         case SCTP_LOCAL_AUTH_CHUNKS:
2855                 {
2856                         struct sctp_authchunks *sac;
2857                         sctp_auth_chklist_t *chklist = NULL;
2858                         size_t size = 0;
2859
2860                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2861                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2862
2863                         if (stcb) {
2864                                 /* get off the assoc */
2865                                 chklist = stcb->asoc.local_auth_chunks;
2866                                 /* is there enough space? */
2867                                 size = sctp_auth_get_chklist_size(chklist);
2868                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2869                                         error = EINVAL;
2870                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2871                                 } else {
2872                                         /* copy in the chunks */
2873                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2874                                         *optsize = sizeof(struct sctp_authchunks) + size;
2875                                 }
2876                                 SCTP_TCB_UNLOCK(stcb);
2877                         } else {
2878                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2879                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2880                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2881                                         /* get off the endpoint */
2882                                         SCTP_INP_RLOCK(inp);
2883                                         chklist = inp->sctp_ep.local_auth_chunks;
2884                                         /* is there enough space? */
2885                                         size = sctp_auth_get_chklist_size(chklist);
2886                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2887                                                 error = EINVAL;
2888                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2889                                         } else {
2890                                                 /* copy in the chunks */
2891                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2892                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2893                                         }
2894                                         SCTP_INP_RUNLOCK(inp);
2895                                 } else {
2896                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2897                                         error = EINVAL;
2898                                 }
2899                         }
2900                         break;
2901                 }
2902         case SCTP_PEER_AUTH_CHUNKS:
2903                 {
2904                         struct sctp_authchunks *sac;
2905                         sctp_auth_chklist_t *chklist = NULL;
2906                         size_t size = 0;
2907
2908                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2909                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2910
2911                         if (stcb) {
2912                                 /* get off the assoc */
2913                                 chklist = stcb->asoc.peer_auth_chunks;
2914                                 /* is there enough space? */
2915                                 size = sctp_auth_get_chklist_size(chklist);
2916                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2917                                         error = EINVAL;
2918                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2919                                 } else {
2920                                         /* copy in the chunks */
2921                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2922                                         *optsize = sizeof(struct sctp_authchunks) + size;
2923                                 }
2924                                 SCTP_TCB_UNLOCK(stcb);
2925                         } else {
2926                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2927                                 error = ENOENT;
2928                         }
2929                         break;
2930                 }
2931         case SCTP_EVENT:
2932                 {
2933                         struct sctp_event *event;
2934                         uint32_t event_type;
2935
2936                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2937                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2938
2939                         switch (event->se_type) {
2940                         case SCTP_ASSOC_CHANGE:
2941                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2942                                 break;
2943                         case SCTP_PEER_ADDR_CHANGE:
2944                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2945                                 break;
2946                         case SCTP_REMOTE_ERROR:
2947                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2948                                 break;
2949                         case SCTP_SEND_FAILED:
2950                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2951                                 break;
2952                         case SCTP_SHUTDOWN_EVENT:
2953                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2954                                 break;
2955                         case SCTP_ADAPTATION_INDICATION:
2956                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2957                                 break;
2958                         case SCTP_PARTIAL_DELIVERY_EVENT:
2959                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2960                                 break;
2961                         case SCTP_AUTHENTICATION_EVENT:
2962                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2963                                 break;
2964                         case SCTP_STREAM_RESET_EVENT:
2965                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2966                                 break;
2967                         case SCTP_SENDER_DRY_EVENT:
2968                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2969                                 break;
2970                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2971                                 event_type = 0;
2972                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2973                                 error = ENOTSUP;
2974                                 break;
2975                         default:
2976                                 event_type = 0;
2977                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2978                                 error = EINVAL;
2979                                 break;
2980                         }
2981                         if (event_type > 0) {
2982                                 if (stcb) {
2983                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
2984                                         SCTP_TCB_UNLOCK(stcb);
2985                                 } else {
2986                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2987                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2988                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
2989                                                 SCTP_INP_RLOCK(inp);
2990                                                 event->se_on = sctp_is_feature_on(inp, event_type);
2991                                                 SCTP_INP_RUNLOCK(inp);
2992                                         } else {
2993                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2994                                                 error = EINVAL;
2995                                         }
2996                                 }
2997                         }
2998                         if (error == 0) {
2999                                 *optsize = sizeof(struct sctp_event);
3000                         }
3001                         break;
3002                 }
3003         case SCTP_RECVRCVINFO:
3004                 {
3005                         int onoff;
3006
3007                         if (*optsize < sizeof(int)) {
3008                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3009                                 error = EINVAL;
3010                         } else {
3011                                 SCTP_INP_RLOCK(inp);
3012                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3013                                 SCTP_INP_RUNLOCK(inp);
3014                         }
3015                         if (error == 0) {
3016                                 /* return the option value */
3017                                 *(int *)optval = onoff;
3018                                 *optsize = sizeof(int);
3019                         }
3020                         break;
3021                 }
3022         case SCTP_RECVNXTINFO:
3023                 {
3024                         int onoff;
3025
3026                         if (*optsize < sizeof(int)) {
3027                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3028                                 error = EINVAL;
3029                         } else {
3030                                 SCTP_INP_RLOCK(inp);
3031                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3032                                 SCTP_INP_RUNLOCK(inp);
3033                         }
3034                         if (error == 0) {
3035                                 /* return the option value */
3036                                 *(int *)optval = onoff;
3037                                 *optsize = sizeof(int);
3038                         }
3039                         break;
3040                 }
3041         case SCTP_DEFAULT_SNDINFO:
3042                 {
3043                         struct sctp_sndinfo *info;
3044
3045                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3046                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3047
3048                         if (stcb) {
3049                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3050                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3051                                 info->snd_flags &= 0xfff0;
3052                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3053                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3054                                 SCTP_TCB_UNLOCK(stcb);
3055                         } else {
3056                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3057                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3058                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3059                                         SCTP_INP_RLOCK(inp);
3060                                         info->snd_sid = inp->def_send.sinfo_stream;
3061                                         info->snd_flags = inp->def_send.sinfo_flags;
3062                                         info->snd_flags &= 0xfff0;
3063                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3064                                         info->snd_context = inp->def_send.sinfo_context;
3065                                         SCTP_INP_RUNLOCK(inp);
3066                                 } else {
3067                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3068                                         error = EINVAL;
3069                                 }
3070                         }
3071                         if (error == 0) {
3072                                 *optsize = sizeof(struct sctp_sndinfo);
3073                         }
3074                         break;
3075                 }
3076         case SCTP_DEFAULT_PRINFO:
3077                 {
3078                         struct sctp_default_prinfo *info;
3079
3080                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3081                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3082
3083                         if (stcb) {
3084                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3085                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3086                                 SCTP_TCB_UNLOCK(stcb);
3087                         } else {
3088                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3089                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3090                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3091                                         SCTP_INP_RLOCK(inp);
3092                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3093                                         info->pr_value = inp->def_send.sinfo_timetolive;
3094                                         SCTP_INP_RUNLOCK(inp);
3095                                 } else {
3096                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3097                                         error = EINVAL;
3098                                 }
3099                         }
3100                         if (error == 0) {
3101                                 *optsize = sizeof(struct sctp_default_prinfo);
3102                         }
3103                         break;
3104                 }
3105         case SCTP_PEER_ADDR_THLDS:
3106                 {
3107                         struct sctp_paddrthlds *thlds;
3108                         struct sctp_nets *net;
3109
3110                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3111                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3112
3113                         net = NULL;
3114                         if (stcb) {
3115                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3116                         } else {
3117                                 /*
3118                                  * We increment here since
3119                                  * sctp_findassociation_ep_addr() wil do a
3120                                  * decrement if it finds the stcb as long as
3121                                  * the locked tcb (last argument) is NOT a
3122                                  * TCB.. aka NULL.
3123                                  */
3124                                 SCTP_INP_INCR_REF(inp);
3125                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3126                                 if (stcb == NULL) {
3127                                         SCTP_INP_DECR_REF(inp);
3128                                 }
3129                         }
3130                         if (stcb && (net == NULL)) {
3131                                 struct sockaddr *sa;
3132
3133                                 sa = (struct sockaddr *)&thlds->spt_address;
3134 #ifdef INET
3135                                 if (sa->sa_family == AF_INET) {
3136                                         struct sockaddr_in *sin;
3137
3138                                         sin = (struct sockaddr_in *)sa;
3139                                         if (sin->sin_addr.s_addr) {
3140                                                 error = EINVAL;
3141                                                 SCTP_TCB_UNLOCK(stcb);
3142                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3143                                                 break;
3144                                         }
3145                                 } else
3146 #endif
3147 #ifdef INET6
3148                                 if (sa->sa_family == AF_INET6) {
3149                                         struct sockaddr_in6 *sin6;
3150
3151                                         sin6 = (struct sockaddr_in6 *)sa;
3152                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3153                                                 error = EINVAL;
3154                                                 SCTP_TCB_UNLOCK(stcb);
3155                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3156                                                 break;
3157                                         }
3158                                 } else
3159 #endif
3160                                 {
3161                                         error = EAFNOSUPPORT;
3162                                         SCTP_TCB_UNLOCK(stcb);
3163                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3164                                         break;
3165                                 }
3166                         }
3167                         if (stcb) {
3168                                 if (net) {
3169                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3170                                         thlds->spt_pathpfthld = net->pf_threshold;
3171                                 } else {
3172                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3173                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3174                                 }
3175                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3176                                 SCTP_TCB_UNLOCK(stcb);
3177                         } else {
3178                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3179                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3180                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3181                                         /* Use endpoint defaults */
3182                                         SCTP_INP_RLOCK(inp);
3183                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3184                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3185                                         SCTP_INP_RUNLOCK(inp);
3186                                 } else {
3187                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3188                                         error = EINVAL;
3189                                 }
3190                         }
3191                         if (error == 0) {
3192                                 *optsize = sizeof(struct sctp_paddrthlds);
3193                         }
3194                         break;
3195                 }
3196         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3197                 {
3198                         struct sctp_udpencaps *encaps;
3199                         struct sctp_nets *net;
3200
3201                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3202                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3203
3204                         if (stcb) {
3205                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
3206                         } else {
3207                                 /*
3208                                  * We increment here since
3209                                  * sctp_findassociation_ep_addr() wil do a
3210                                  * decrement if it finds the stcb as long as
3211                                  * the locked tcb (last argument) is NOT a
3212                                  * TCB.. aka NULL.
3213                                  */
3214                                 net = NULL;
3215                                 SCTP_INP_INCR_REF(inp);
3216                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
3217                                 if (stcb == NULL) {
3218                                         SCTP_INP_DECR_REF(inp);
3219                                 }
3220                         }
3221                         if (stcb && (net == NULL)) {
3222                                 struct sockaddr *sa;
3223
3224                                 sa = (struct sockaddr *)&encaps->sue_address;
3225 #ifdef INET
3226                                 if (sa->sa_family == AF_INET) {
3227                                         struct sockaddr_in *sin;
3228
3229                                         sin = (struct sockaddr_in *)sa;
3230                                         if (sin->sin_addr.s_addr) {
3231                                                 error = EINVAL;
3232                                                 SCTP_TCB_UNLOCK(stcb);
3233                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3234                                                 break;
3235                                         }
3236                                 } else
3237 #endif
3238 #ifdef INET6
3239                                 if (sa->sa_family == AF_INET6) {
3240                                         struct sockaddr_in6 *sin6;
3241
3242                                         sin6 = (struct sockaddr_in6 *)sa;
3243                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3244                                                 error = EINVAL;
3245                                                 SCTP_TCB_UNLOCK(stcb);
3246                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3247                                                 break;
3248                                         }
3249                                 } else
3250 #endif
3251                                 {
3252                                         error = EAFNOSUPPORT;
3253                                         SCTP_TCB_UNLOCK(stcb);
3254                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3255                                         break;
3256                                 }
3257                         }
3258                         if (stcb) {
3259                                 if (net) {
3260                                         encaps->sue_port = net->port;
3261                                 } else {
3262                                         encaps->sue_port = stcb->asoc.port;
3263                                 }
3264                                 SCTP_TCB_UNLOCK(stcb);
3265                         } else {
3266                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3267                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3268                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3269                                         SCTP_INP_RLOCK(inp);
3270                                         encaps->sue_port = inp->sctp_ep.port;
3271                                         SCTP_INP_RUNLOCK(inp);
3272                                 } else {
3273                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3274                                         error = EINVAL;
3275                                 }
3276                         }
3277                         if (error == 0) {
3278                                 *optsize = sizeof(struct sctp_paddrparams);
3279                         }
3280                         break;
3281                 }
3282         default:
3283                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3284                 error = ENOPROTOOPT;
3285                 break;
3286         }                       /* end switch (sopt->sopt_name) */
3287         if (error) {
3288                 *optsize = 0;
3289         }
3290         return (error);
3291 }
3292
3293 static int
3294 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3295     void *p)
3296 {
3297         int error, set_opt;
3298         uint32_t *mopt;
3299         struct sctp_tcb *stcb = NULL;
3300         struct sctp_inpcb *inp = NULL;
3301         uint32_t vrf_id;
3302
3303         if (optval == NULL) {
3304                 SCTP_PRINTF("optval is NULL\n");
3305                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3306                 return (EINVAL);
3307         }
3308         inp = (struct sctp_inpcb *)so->so_pcb;
3309         if (inp == 0) {
3310                 SCTP_PRINTF("inp is NULL?\n");
3311                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3312                 return (EINVAL);
3313         }
3314         vrf_id = inp->def_vrf_id;
3315
3316         error = 0;
3317         switch (optname) {
3318         case SCTP_NODELAY:
3319         case SCTP_AUTOCLOSE:
3320         case SCTP_AUTO_ASCONF:
3321         case SCTP_EXPLICIT_EOR:
3322         case SCTP_DISABLE_FRAGMENTS:
3323         case SCTP_USE_EXT_RCVINFO:
3324         case SCTP_I_WANT_MAPPED_V4_ADDR:
3325                 /* copy in the option value */
3326                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3327                 set_opt = 0;
3328                 if (error)
3329                         break;
3330                 switch (optname) {
3331                 case SCTP_DISABLE_FRAGMENTS:
3332                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3333                         break;
3334                 case SCTP_AUTO_ASCONF:
3335                         /*
3336                          * NOTE: we don't really support this flag
3337                          */
3338                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3339                                 /* only valid for bound all sockets */
3340                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3341                                     (*mopt != 0)) {
3342                                         /* forbidden by admin */
3343                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3344                                         return (EPERM);
3345                                 }
3346                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3347                         } else {
3348                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3349                                 return (EINVAL);
3350                         }
3351                         break;
3352                 case SCTP_EXPLICIT_EOR:
3353                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3354                         break;
3355                 case SCTP_USE_EXT_RCVINFO:
3356                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3357                         break;
3358                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3359                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3360                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3361                         } else {
3362                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3363                                 return (EINVAL);
3364                         }
3365                         break;
3366                 case SCTP_NODELAY:
3367                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3368                         break;
3369                 case SCTP_AUTOCLOSE:
3370                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3371                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3372                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3373                                 return (EINVAL);
3374                         }
3375                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3376                         /*
3377                          * The value is in ticks. Note this does not effect
3378                          * old associations, only new ones.
3379                          */
3380                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3381                         break;
3382                 }
3383                 SCTP_INP_WLOCK(inp);
3384                 if (*mopt != 0) {
3385                         sctp_feature_on(inp, set_opt);
3386                 } else {
3387                         sctp_feature_off(inp, set_opt);
3388                 }
3389                 SCTP_INP_WUNLOCK(inp);
3390                 break;
3391         case SCTP_REUSE_PORT:
3392                 {
3393                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3394                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3395                                 /* Can't set it after we are bound */
3396                                 error = EINVAL;
3397                                 break;
3398                         }
3399                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3400                                 /* Can't do this for a 1-m socket */
3401                                 error = EINVAL;
3402                                 break;
3403                         }
3404                         if (optval)
3405                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3406                         else
3407                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3408                         break;
3409                 }
3410         case SCTP_PARTIAL_DELIVERY_POINT:
3411                 {
3412                         uint32_t *value;
3413
3414                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3415                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3416                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3417                                 error = EINVAL;
3418                                 break;
3419                         }
3420                         inp->partial_delivery_point = *value;
3421                         break;
3422                 }
3423         case SCTP_FRAGMENT_INTERLEAVE:
3424                 /* not yet until we re-write sctp_recvmsg() */
3425                 {
3426                         uint32_t *level;
3427
3428                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3429                         if (*level == SCTP_FRAG_LEVEL_2) {
3430                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3431                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3432                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3433                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3434                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3435                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3436                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3437                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3438
3439                         } else {
3440                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3441                                 error = EINVAL;
3442                         }
3443                         break;
3444                 }
3445         case SCTP_CMT_ON_OFF:
3446                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3447                         struct sctp_assoc_value *av;
3448
3449                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3450                         if (av->assoc_value > SCTP_CMT_MAX) {
3451                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3452                                 error = EINVAL;
3453                                 break;
3454                         }
3455                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3456                         if (stcb) {
3457                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3458                                 SCTP_TCB_UNLOCK(stcb);
3459                         } else {
3460                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3461                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3462                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3463                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3464                                         SCTP_INP_WLOCK(inp);
3465                                         inp->sctp_cmt_on_off = av->assoc_value;
3466                                         SCTP_INP_WUNLOCK(inp);
3467                                 }
3468                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3469                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3470                                         SCTP_INP_RLOCK(inp);
3471                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3472                                                 SCTP_TCB_LOCK(stcb);
3473                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3474                                                 SCTP_TCB_UNLOCK(stcb);
3475                                         }
3476                                         SCTP_INP_RUNLOCK(inp);
3477                                 }
3478                         }
3479                 } else {
3480                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3481                         error = ENOPROTOOPT;
3482                 }
3483                 break;
3484         case SCTP_PLUGGABLE_CC:
3485                 {
3486                         struct sctp_assoc_value *av;
3487                         struct sctp_nets *net;
3488
3489                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3490                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3491                             (av->assoc_value != SCTP_CC_HSTCP) &&
3492                             (av->assoc_value != SCTP_CC_HTCP) &&
3493                             (av->assoc_value != SCTP_CC_RTCC)) {
3494                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3495                                 error = EINVAL;
3496                                 break;
3497                         }
3498                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3499                         if (stcb) {
3500                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3501                                 stcb->asoc.congestion_control_module = av->assoc_value;
3502                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3503                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3504                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3505                                         }
3506                                 }
3507                                 SCTP_TCB_UNLOCK(stcb);
3508                         } else {
3509                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3510                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3511                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3512                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3513                                         SCTP_INP_WLOCK(inp);
3514                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3515                                         SCTP_INP_WUNLOCK(inp);
3516                                 }
3517                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3518                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3519                                         SCTP_INP_RLOCK(inp);
3520                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3521                                                 SCTP_TCB_LOCK(stcb);
3522                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3523                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3524                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3525                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3526                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3527                                                         }
3528                                                 }
3529                                                 SCTP_TCB_UNLOCK(stcb);
3530                                         }
3531                                         SCTP_INP_RUNLOCK(inp);
3532                                 }
3533                         }
3534                         break;
3535                 }
3536         case SCTP_CC_OPTION:
3537                 {
3538                         struct sctp_cc_option *cc_opt;
3539
3540                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3541                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3542                         if (stcb == NULL) {
3543                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3544                                         SCTP_INP_RLOCK(inp);
3545                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3546                                                 SCTP_TCB_LOCK(stcb);
3547                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3548                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3549                                                 }
3550                                                 SCTP_TCB_UNLOCK(stcb);
3551                                         }
3552                                         SCTP_INP_RUNLOCK(inp);
3553                                 } else {
3554                                         error = EINVAL;
3555                                 }
3556                         } else {
3557                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3558                                         error = ENOTSUP;
3559                                 } else {
3560                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3561                                             cc_opt);
3562                                 }
3563                                 SCTP_TCB_UNLOCK(stcb);
3564                         }
3565                         break;
3566                 }
3567         case SCTP_PLUGGABLE_SS:
3568                 {
3569                         struct sctp_assoc_value *av;
3570
3571                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3572                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3573                             (av->assoc_value != SCTP_SS_DEFAULT) &&
3574                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3575                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3576                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3577                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3578                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3579                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3580                                 error = EINVAL;
3581                                 break;
3582                         }
3583                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3584                         if (stcb) {
3585                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3586                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3587                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3588                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3589                                 SCTP_TCB_UNLOCK(stcb);
3590                         } else {
3591                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3592                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3593                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3594                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3595                                         SCTP_INP_WLOCK(inp);
3596                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3597                                         SCTP_INP_WUNLOCK(inp);
3598                                 }
3599                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3600                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3601                                         SCTP_INP_RLOCK(inp);
3602                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3603                                                 SCTP_TCB_LOCK(stcb);
3604                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3605                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3606                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3607                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3608                                                 SCTP_TCB_UNLOCK(stcb);
3609                                         }
3610                                         SCTP_INP_RUNLOCK(inp);
3611                                 }
3612                         }
3613                         break;
3614                 }
3615         case SCTP_SS_VALUE:
3616                 {
3617                         struct sctp_stream_value *av;
3618
3619                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3620                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3621                         if (stcb) {
3622                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3623                                     av->stream_value) < 0) {
3624                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3625                                         error = EINVAL;
3626                                 }
3627                                 SCTP_TCB_UNLOCK(stcb);
3628                         } else {
3629                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3630                                         SCTP_INP_RLOCK(inp);
3631                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3632                                                 SCTP_TCB_LOCK(stcb);
3633                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3634                                                     &stcb->asoc,
3635                                                     &stcb->asoc.strmout[av->stream_id],
3636                                                     av->stream_value);
3637                                                 SCTP_TCB_UNLOCK(stcb);
3638                                         }
3639                                         SCTP_INP_RUNLOCK(inp);
3640
3641                                 } else {
3642                                         /*
3643                                          * Can't set stream value without
3644                                          * association
3645                                          */
3646                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3647                                         error = EINVAL;
3648                                 }
3649                         }
3650                         break;
3651                 }
3652         case SCTP_CLR_STAT_LOG:
3653                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3654                 error = EOPNOTSUPP;
3655                 break;
3656         case SCTP_CONTEXT:
3657                 {
3658                         struct sctp_assoc_value *av;
3659
3660                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3661                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3662
3663                         if (stcb) {
3664                                 stcb->asoc.context = av->assoc_value;
3665                                 SCTP_TCB_UNLOCK(stcb);
3666                         } else {
3667                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3668                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3669                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3670                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3671                                         SCTP_INP_WLOCK(inp);
3672                                         inp->sctp_context = av->assoc_value;
3673                                         SCTP_INP_WUNLOCK(inp);
3674                                 }
3675                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3676                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3677                                         SCTP_INP_RLOCK(inp);
3678                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3679                                                 SCTP_TCB_LOCK(stcb);
3680                                                 stcb->asoc.context = av->assoc_value;
3681                                                 SCTP_TCB_UNLOCK(stcb);
3682                                         }
3683                                         SCTP_INP_RUNLOCK(inp);
3684                                 }
3685                         }
3686                         break;
3687                 }
3688         case SCTP_VRF_ID:
3689                 {
3690                         uint32_t *default_vrfid;
3691
3692                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3693                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3694                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3695                                 error = EINVAL;
3696                                 break;
3697                         }
3698                         inp->def_vrf_id = *default_vrfid;
3699                         break;
3700                 }
3701         case SCTP_DEL_VRF_ID:
3702                 {
3703                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3704                         error = EOPNOTSUPP;
3705                         break;
3706                 }
3707         case SCTP_ADD_VRF_ID:
3708                 {
3709                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3710                         error = EOPNOTSUPP;
3711                         break;
3712                 }
3713         case SCTP_DELAYED_SACK:
3714                 {
3715                         struct sctp_sack_info *sack;
3716
3717                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3718                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3719                         if (sack->sack_delay) {
3720                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3721                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3722                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3723                                         sack->sack_delay = TICKS_TO_MSEC(1);
3724                                 }
3725                         }
3726                         if (stcb) {
3727                                 if (sack->sack_delay) {
3728                                         stcb->asoc.delayed_ack = sack->sack_delay;
3729                                 }
3730                                 if (sack->sack_freq) {
3731                                         stcb->asoc.sack_freq = sack->sack_freq;
3732                                 }
3733                                 SCTP_TCB_UNLOCK(stcb);
3734                         } else {
3735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3737                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3738                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3739                                         SCTP_INP_WLOCK(inp);
3740                                         if (sack->sack_delay) {
3741                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3742                                         }
3743                                         if (sack->sack_freq) {
3744                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3745                                         }
3746                                         SCTP_INP_WUNLOCK(inp);
3747                                 }
3748                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3749                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3750                                         SCTP_INP_RLOCK(inp);
3751                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3752                                                 SCTP_TCB_LOCK(stcb);
3753                                                 if (sack->sack_delay) {
3754                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3755                                                 }
3756                                                 if (sack->sack_freq) {
3757                                                         stcb->asoc.sack_freq = sack->sack_freq;
3758                                                 }
3759                                                 SCTP_TCB_UNLOCK(stcb);
3760                                         }
3761                                         SCTP_INP_RUNLOCK(inp);
3762                                 }
3763                         }
3764                         break;
3765                 }
3766         case SCTP_AUTH_CHUNK:
3767                 {
3768                         struct sctp_authchunk *sauth;
3769
3770                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3771
3772                         SCTP_INP_WLOCK(inp);
3773                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3774                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3775                                 error = EINVAL;
3776                         }
3777                         SCTP_INP_WUNLOCK(inp);
3778                         break;
3779                 }
3780         case SCTP_AUTH_KEY:
3781                 {
3782                         struct sctp_authkey *sca;
3783                         struct sctp_keyhead *shared_keys;
3784                         sctp_sharedkey_t *shared_key;
3785                         sctp_key_t *key = NULL;
3786                         size_t size;
3787
3788                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3789                         if (sca->sca_keylength == 0) {
3790                                 size = optsize - sizeof(struct sctp_authkey);
3791                         } else {
3792                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3793                                         size = sca->sca_keylength;
3794                                 } else {
3795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3796                                         error = EINVAL;
3797                                         break;
3798                                 }
3799                         }
3800                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3801
3802                         if (stcb) {
3803                                 shared_keys = &stcb->asoc.shared_keys;
3804                                 /* clear the cached keys for this key id */
3805                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3806                                 /*
3807                                  * create the new shared key and
3808                                  * insert/replace it
3809                                  */
3810                                 if (size > 0) {
3811                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3812                                         if (key == NULL) {
3813                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3814                                                 error = ENOMEM;
3815                                                 SCTP_TCB_UNLOCK(stcb);
3816                                                 break;
3817                                         }
3818                                 }
3819                                 shared_key = sctp_alloc_sharedkey();
3820                                 if (shared_key == NULL) {
3821                                         sctp_free_key(key);
3822                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3823                                         error = ENOMEM;
3824                                         SCTP_TCB_UNLOCK(stcb);
3825                                         break;
3826                                 }
3827                                 shared_key->key = key;
3828                                 shared_key->keyid = sca->sca_keynumber;
3829                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3830                                 SCTP_TCB_UNLOCK(stcb);
3831                         } else {
3832                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3833                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3834                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3835                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3836                                         SCTP_INP_WLOCK(inp);
3837                                         shared_keys = &inp->sctp_ep.shared_keys;
3838                                         /*
3839                                          * clear the cached keys on all
3840                                          * assocs for this key id
3841                                          */
3842                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3843                                         /*
3844                                          * create the new shared key and
3845                                          * insert/replace it
3846                                          */
3847                                         if (size > 0) {
3848                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3849                                                 if (key == NULL) {
3850                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3851                                                         error = ENOMEM;
3852                                                         SCTP_INP_WUNLOCK(inp);
3853                                                         break;
3854                                                 }
3855                                         }
3856                                         shared_key = sctp_alloc_sharedkey();
3857                                         if (shared_key == NULL) {
3858                                                 sctp_free_key(key);
3859                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3860                                                 error = ENOMEM;
3861                                                 SCTP_INP_WUNLOCK(inp);
3862                                                 break;
3863                                         }
3864                                         shared_key->key = key;
3865                                         shared_key->keyid = sca->sca_keynumber;
3866                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3867                                         SCTP_INP_WUNLOCK(inp);
3868                                 }
3869                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3870                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3871                                         SCTP_INP_RLOCK(inp);
3872                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3873                                                 SCTP_TCB_LOCK(stcb);
3874                                                 shared_keys = &stcb->asoc.shared_keys;
3875                                                 /*
3876                                                  * clear the cached keys for
3877                                                  * this key id
3878                                                  */
3879                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3880                                                 /*
3881                                                  * create the new shared key
3882                                                  * and insert/replace it
3883                                                  */
3884                                                 if (size > 0) {
3885                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3886                                                         if (key == NULL) {
3887                                                                 SCTP_TCB_UNLOCK(stcb);
3888                                                                 continue;
3889                                                         }
3890                                                 }
3891                                                 shared_key = sctp_alloc_sharedkey();
3892                                                 if (shared_key == NULL) {
3893                                                         sctp_free_key(key);
3894                                                         SCTP_TCB_UNLOCK(stcb);
3895                                                         continue;
3896                                                 }
3897                                                 shared_key->key = key;
3898                                                 shared_key->keyid = sca->sca_keynumber;
3899                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3900                                                 SCTP_TCB_UNLOCK(stcb);
3901                                         }
3902                                         SCTP_INP_RUNLOCK(inp);
3903                                 }
3904                         }
3905                         break;
3906                 }
3907         case SCTP_HMAC_IDENT:
3908                 {
3909                         struct sctp_hmacalgo *shmac;
3910                         sctp_hmaclist_t *hmaclist;
3911                         uint16_t hmacid;
3912                         uint32_t i;
3913                         size_t found;
3914
3915                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3916                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3917                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3918                                 error = EINVAL;
3919                                 break;
3920                         }
3921                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3922                         if (hmaclist == NULL) {
3923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3924                                 error = ENOMEM;
3925                                 break;
3926                         }
3927                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3928                                 hmacid = shmac->shmac_idents[i];
3929                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3930                                          /* invalid HMACs were found */ ;
3931                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3932                                         error = EINVAL;
3933                                         sctp_free_hmaclist(hmaclist);
3934                                         goto sctp_set_hmac_done;
3935                                 }
3936                         }
3937                         found = 0;
3938                         for (i = 0; i < hmaclist->num_algo; i++) {
3939                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3940                                         /* already in list */
3941                                         found = 1;
3942                                 }
3943                         }
3944                         if (!found) {
3945                                 sctp_free_hmaclist(hmaclist);
3946                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3947                                 error = EINVAL;
3948                                 break;
3949                         }
3950                         /* set it on the endpoint */
3951                         SCTP_INP_WLOCK(inp);
3952                         if (inp->sctp_ep.local_hmacs)
3953                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3954                         inp->sctp_ep.local_hmacs = hmaclist;
3955                         SCTP_INP_WUNLOCK(inp);
3956         sctp_set_hmac_done:
3957                         break;
3958                 }
3959         case SCTP_AUTH_ACTIVE_KEY:
3960                 {
3961                         struct sctp_authkeyid *scact;
3962
3963                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3964                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3965
3966                         /* set the active key on the right place */
3967                         if (stcb) {
3968                                 /* set the active key on the assoc */
3969                                 if (sctp_auth_setactivekey(stcb,
3970                                     scact->scact_keynumber)) {
3971                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3972                                             SCTP_FROM_SCTP_USRREQ,
3973                                             EINVAL);
3974                                         error = EINVAL;
3975                                 }
3976                                 SCTP_TCB_UNLOCK(stcb);
3977                         } else {
3978                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3979                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3980                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3981                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3982                                         SCTP_INP_WLOCK(inp);
3983                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
3984                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3985                                                 error = EINVAL;
3986                                         }
3987                                         SCTP_INP_WUNLOCK(inp);
3988                                 }
3989                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
3990                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3991                                         SCTP_INP_RLOCK(inp);
3992                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3993                                                 SCTP_TCB_LOCK(stcb);
3994                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
3995                                                 SCTP_TCB_UNLOCK(stcb);
3996                                         }
3997                                         SCTP_INP_RUNLOCK(inp);
3998                                 }
3999                         }
4000                         break;
4001                 }
4002         case SCTP_AUTH_DELETE_KEY:
4003                 {
4004                         struct sctp_authkeyid *scdel;
4005
4006                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4007                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4008
4009                         /* delete the key from the right place */
4010                         if (stcb) {
4011                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4012                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4013                                         error = EINVAL;
4014                                 }
4015                                 SCTP_TCB_UNLOCK(stcb);
4016                         } else {
4017                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4018                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4019                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4020                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4021                                         SCTP_INP_WLOCK(inp);
4022                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4023                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4024                                                 error = EINVAL;
4025                                         }
4026                                         SCTP_INP_WUNLOCK(inp);
4027                                 }
4028                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4029                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4030                                         SCTP_INP_RLOCK(inp);
4031                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4032                                                 SCTP_TCB_LOCK(stcb);
4033                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4034                                                 SCTP_TCB_UNLOCK(stcb);
4035                                         }
4036                                         SCTP_INP_RUNLOCK(inp);
4037                                 }
4038                         }
4039                         break;
4040                 }
4041         case SCTP_AUTH_DEACTIVATE_KEY:
4042                 {
4043                         struct sctp_authkeyid *keyid;
4044
4045                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4046                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4047
4048                         /* deactivate the key from the right place */
4049                         if (stcb) {
4050                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4051                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4052                                         error = EINVAL;
4053                                 }
4054                                 SCTP_TCB_UNLOCK(stcb);
4055                         } else {
4056                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4057                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4058                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4059                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4060                                         SCTP_INP_WLOCK(inp);
4061                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4062                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4063                                                 error = EINVAL;
4064                                         }
4065                                         SCTP_INP_WUNLOCK(inp);
4066                                 }
4067                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4068                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4069                                         SCTP_INP_RLOCK(inp);
4070                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4071                                                 SCTP_TCB_LOCK(stcb);
4072                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4073                                                 SCTP_TCB_UNLOCK(stcb);
4074                                         }
4075                                         SCTP_INP_RUNLOCK(inp);
4076                                 }
4077                         }
4078                         break;
4079                 }
4080
4081         case SCTP_RESET_STREAMS:
4082                 {
4083                         struct sctp_stream_reset *strrst;
4084                         uint8_t send_in = 0, send_tsn = 0, send_out = 0,
4085                                 addstream = 0;
4086                         uint16_t addstrmcnt = 0;
4087                         int i;
4088
4089                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
4090                         SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
4091
4092                         if (stcb == NULL) {
4093                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4094                                 error = ENOENT;
4095                                 break;
4096                         }
4097                         if (stcb->asoc.peer_supports_strreset == 0) {
4098                                 /*
4099                                  * Peer does not support it, we return
4100                                  * protocol not supported since this is true
4101                                  * for this feature and this peer, not the
4102                                  * socket request in general.
4103                                  */
4104                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT);
4105                                 error = EPROTONOSUPPORT;
4106                                 SCTP_TCB_UNLOCK(stcb);
4107                                 break;
4108                         }
4109                         if (stcb->asoc.stream_reset_outstanding) {
4110                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4111                                 error = EALREADY;
4112                                 SCTP_TCB_UNLOCK(stcb);
4113                                 break;
4114                         }
4115                         if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
4116                                 send_in = 1;
4117                         } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
4118                                 send_out = 1;
4119                         } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
4120                                 send_in = 1;
4121                                 send_out = 1;
4122                         } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
4123                                 send_tsn = 1;
4124                         } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) {
4125                                 if (send_tsn ||
4126                                     send_in ||
4127                                     send_out) {
4128                                         /* We can't do that and add streams */
4129                                         error = EINVAL;
4130                                         goto skip_stuff;
4131                                 }
4132                                 if (stcb->asoc.stream_reset_outstanding) {
4133                                         error = EBUSY;
4134                                         goto skip_stuff;
4135                                 }
4136                                 addstream = 1;
4137                                 /* We allocate here */
4138                                 addstrmcnt = strrst->strrst_num_streams;
4139                                 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) {
4140                                         /* You can't have more than 64k */
4141                                         error = EINVAL;
4142                                         goto skip_stuff;
4143                                 }
4144                                 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) {
4145                                         /* Need to allocate more */
4146                                         struct sctp_stream_out *oldstream;
4147                                         struct sctp_stream_queue_pending *sp,
4148                                                                  *nsp;
4149
4150                                         oldstream = stcb->asoc.strmout;
4151                                         /* get some more */
4152                                         SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *,
4153                                             ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)),
4154                                             SCTP_M_STRMO);
4155                                         if (stcb->asoc.strmout == NULL) {
4156                                                 stcb->asoc.strmout = oldstream;
4157                                                 error = ENOMEM;
4158                                                 goto skip_stuff;
4159                                         }
4160                                         /*
4161                                          * Ok now we proceed with copying
4162                                          * the old out stuff and
4163                                          * initializing the new stuff.
4164                                          */
4165                                         SCTP_TCB_SEND_LOCK(stcb);
4166                                         stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0, 1);
4167                                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4168                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
4169                                                 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent;
4170                                                 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete;
4171                                                 stcb->asoc.strmout[i].stream_no = i;
4172                                                 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], &oldstream[i]);
4173                                                 /*
4174                                                  * now anything on those
4175                                                  * queues?
4176                                                  */
4177                                                 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) {
4178                                                         TAILQ_REMOVE(&oldstream[i].outqueue, sp, next);
4179                                                         TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next);
4180                                                 }
4181                                                 /*
4182                                                  * Now move assoc pointers
4183                                                  * too
4184                                                  */
4185                                                 if (stcb->asoc.last_out_stream == &oldstream[i]) {
4186                                                         stcb->asoc.last_out_stream = &stcb->asoc.strmout[i];
4187                                                 }
4188                                                 if (stcb->asoc.locked_on_sending == &oldstream[i]) {
4189                                                         stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i];
4190                                                 }
4191                                         }
4192                                         /* now the new streams */
4193                                         stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4194                                         for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) {
4195                                                 stcb->asoc.strmout[i].next_sequence_sent = 0x0;
4196                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
4197                                                 stcb->asoc.strmout[i].stream_no = i;
4198                                                 stcb->asoc.strmout[i].last_msg_incomplete = 0;
4199                                                 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], NULL);
4200                                         }
4201                                         stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt;
4202                                         SCTP_FREE(oldstream, SCTP_M_STRMO);
4203                                 }
4204                                 SCTP_TCB_SEND_UNLOCK(stcb);
4205                                 goto skip_stuff;
4206                         } else {
4207                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4208                                 error = EINVAL;
4209                                 SCTP_TCB_UNLOCK(stcb);
4210                                 break;
4211                         }
4212                         for (i = 0; i < strrst->strrst_num_streams; i++) {
4213                                 if ((send_in) &&
4214
4215                                     (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
4216                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4217                                         error = EINVAL;
4218                                         goto get_out;
4219                                 }
4220                                 if ((send_out) &&
4221                                     (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
4222                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4223                                         error = EINVAL;
4224                                         goto get_out;
4225                                 }
4226                         }
4227         skip_stuff:
4228                         if (error) {
4229                 get_out:
4230                                 SCTP_TCB_UNLOCK(stcb);
4231                                 break;
4232                         }
4233                         error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
4234                             strrst->strrst_list,
4235                             send_out, (stcb->asoc.str_reset_seq_in - 3),
4236                             send_in, send_tsn, addstream, addstrmcnt);
4237
4238                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4239                         SCTP_TCB_UNLOCK(stcb);
4240                         break;
4241                 }
4242         case SCTP_CONNECT_X:
4243                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4244                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4245                         error = EINVAL;
4246                         break;
4247                 }
4248                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4249                 break;
4250         case SCTP_CONNECT_X_DELAYED:
4251                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4252                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4253                         error = EINVAL;
4254                         break;
4255                 }
4256                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4257                 break;
4258         case SCTP_CONNECT_X_COMPLETE:
4259                 {
4260                         struct sockaddr *sa;
4261                         struct sctp_nets *net;
4262
4263                         /* FIXME MT: check correct? */
4264                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4265
4266                         /* find tcb */
4267                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4268                                 SCTP_INP_RLOCK(inp);
4269                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4270                                 if (stcb) {
4271                                         SCTP_TCB_LOCK(stcb);
4272                                         net = sctp_findnet(stcb, sa);
4273                                 }
4274                                 SCTP_INP_RUNLOCK(inp);
4275                         } else {
4276                                 /*
4277                                  * We increment here since
4278                                  * sctp_findassociation_ep_addr() wil do a
4279                                  * decrement if it finds the stcb as long as
4280                                  * the locked tcb (last argument) is NOT a
4281                                  * TCB.. aka NULL.
4282                                  */
4283                                 SCTP_INP_INCR_REF(inp);
4284                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4285                                 if (stcb == NULL) {
4286                                         SCTP_INP_DECR_REF(inp);
4287                                 }
4288                         }
4289
4290                         if (stcb == NULL) {
4291                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4292                                 error = ENOENT;
4293                                 break;
4294                         }
4295                         if (stcb->asoc.delayed_connection == 1) {
4296                                 stcb->asoc.delayed_connection = 0;
4297                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4298                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4299                                     stcb->asoc.primary_destination,
4300                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4301                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4302                         } else {
4303                                 /*
4304                                  * already expired or did not use delayed
4305                                  * connectx
4306                                  */
4307                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4308                                 error = EALREADY;
4309                         }
4310                         SCTP_TCB_UNLOCK(stcb);
4311                         break;
4312                 }
4313         case SCTP_MAX_BURST:
4314                 {
4315                         uint8_t *burst;
4316
4317                         SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
4318
4319                         SCTP_INP_WLOCK(inp);
4320                         inp->sctp_ep.max_burst = *burst;
4321                         SCTP_INP_WUNLOCK(inp);
4322                         break;
4323                 }
4324         case SCTP_MAXSEG:
4325                 {
4326                         struct sctp_assoc_value *av;
4327                         int ovh;
4328
4329                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4330                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4331
4332                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4333                                 ovh = SCTP_MED_OVERHEAD;
4334                         } else {
4335                                 ovh = SCTP_MED_V4_OVERHEAD;
4336                         }
4337                         if (stcb) {
4338                                 if (av->assoc_value) {
4339                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4340                                 } else {
4341                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4342                                 }
4343                                 SCTP_TCB_UNLOCK(stcb);
4344                         } else {
4345                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4346                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4347                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4348                                         SCTP_INP_WLOCK(inp);
4349                                         /*
4350                                          * FIXME MT: I think this is not in
4351                                          * tune with the API ID
4352                                          */
4353                                         if (av->assoc_value) {
4354                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4355                                         } else {
4356                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4357                                         }
4358                                         SCTP_INP_WUNLOCK(inp);
4359                                 } else {
4360                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4361                                         error = EINVAL;
4362                                 }
4363                         }
4364                         break;
4365                 }
4366         case SCTP_EVENTS:
4367                 {
4368                         struct sctp_event_subscribe *events;
4369
4370                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4371
4372                         SCTP_INP_WLOCK(inp);
4373                         if (events->sctp_data_io_event) {
4374                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4375                         } else {
4376                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4377                         }
4378
4379                         if (events->sctp_association_event) {
4380                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4381                         } else {
4382                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4383                         }
4384
4385                         if (events->sctp_address_event) {
4386                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4387                         } else {
4388                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4389                         }
4390
4391                         if (events->sctp_send_failure_event) {
4392                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4393                         } else {
4394                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4395                         }
4396
4397                         if (events->sctp_peer_error_event) {
4398                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4399                         } else {
4400                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4401                         }
4402
4403                         if (events->sctp_shutdown_event) {
4404                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4405                         } else {
4406                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4407                         }
4408
4409                         if (events->sctp_partial_delivery_event) {
4410                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4411                         } else {
4412                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4413                         }
4414
4415                         if (events->sctp_adaptation_layer_event) {
4416                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4417                         } else {
4418                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4419                         }
4420
4421                         if (events->sctp_authentication_event) {
4422                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4423                         } else {
4424                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4425                         }
4426
4427                         if (events->sctp_sender_dry_event) {
4428                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4429                         } else {
4430                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4431                         }
4432
4433                         if (events->sctp_stream_reset_event) {
4434                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4435                         } else {
4436                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4437                         }
4438                         SCTP_INP_WUNLOCK(inp);
4439
4440                         SCTP_INP_RLOCK(inp);
4441                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4442                                 SCTP_TCB_LOCK(stcb);
4443                                 if (events->sctp_association_event) {
4444                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4445                                 } else {
4446                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4447                                 }
4448                                 if (events->sctp_address_event) {
4449                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4450                                 } else {
4451                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4452                                 }
4453                                 if (events->sctp_send_failure_event) {
4454                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4455                                 } else {
4456                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4457                                 }
4458                                 if (events->sctp_peer_error_event) {
4459                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4460                                 } else {
4461                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4462                                 }
4463                                 if (events->sctp_shutdown_event) {
4464                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4465                                 } else {
4466                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4467                                 }
4468                                 if (events->sctp_partial_delivery_event) {
4469                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4470                                 } else {
4471                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4472                                 }
4473                                 if (events->sctp_adaptation_layer_event) {
4474                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4475                                 } else {
4476                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4477                                 }
4478                                 if (events->sctp_authentication_event) {
4479                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4480                                 } else {
4481                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4482                                 }
4483                                 if (events->sctp_sender_dry_event) {
4484                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4485                                 } else {
4486                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4487                                 }
4488                                 if (events->sctp_stream_reset_event) {
4489                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4490                                 } else {
4491                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4492                                 }
4493                                 SCTP_TCB_UNLOCK(stcb);
4494                         }
4495                         /*
4496                          * Send up the sender dry event only for 1-to-1
4497                          * style sockets.
4498                          */
4499                         if (events->sctp_sender_dry_event) {
4500                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4501                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4502                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4503                                         if (stcb) {
4504                                                 SCTP_TCB_LOCK(stcb);
4505                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4506                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4507                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4508                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4509                                                 }
4510                                                 SCTP_TCB_UNLOCK(stcb);
4511                                         }
4512                                 }
4513                         }
4514                         SCTP_INP_RUNLOCK(inp);
4515                         break;
4516                 }
4517         case SCTP_ADAPTATION_LAYER:
4518                 {
4519                         struct sctp_setadaptation *adap_bits;
4520
4521                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4522                         SCTP_INP_WLOCK(inp);
4523                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4524                         SCTP_INP_WUNLOCK(inp);
4525                         break;
4526                 }
4527 #ifdef SCTP_DEBUG
4528         case SCTP_SET_INITIAL_DBG_SEQ:
4529                 {
4530                         uint32_t *vvv;
4531
4532                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4533                         SCTP_INP_WLOCK(inp);
4534                         inp->sctp_ep.initial_sequence_debug = *vvv;
4535                         SCTP_INP_WUNLOCK(inp);
4536                         break;
4537                 }
4538 #endif
4539         case SCTP_DEFAULT_SEND_PARAM:
4540                 {
4541                         struct sctp_sndrcvinfo *s_info;
4542
4543                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4544                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4545
4546                         if (stcb) {
4547                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4548                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4549                                 } else {
4550                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4551                                         error = EINVAL;
4552                                 }
4553                                 SCTP_TCB_UNLOCK(stcb);
4554                         } else {
4555                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4556                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4557                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4558                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4559                                         SCTP_INP_WLOCK(inp);
4560                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4561                                         SCTP_INP_WUNLOCK(inp);
4562                                 }
4563                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4564                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4565                                         SCTP_INP_RLOCK(inp);
4566                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4567                                                 SCTP_TCB_LOCK(stcb);
4568                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4569                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4570                                                 }
4571                                                 SCTP_TCB_UNLOCK(stcb);
4572                                         }
4573                                         SCTP_INP_RUNLOCK(inp);
4574                                 }
4575                         }
4576                         break;
4577                 }
4578         case SCTP_PEER_ADDR_PARAMS:
4579                 {
4580                         struct sctp_paddrparams *paddrp;
4581                         struct sctp_nets *net;
4582
4583                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4584                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4585                         net = NULL;
4586                         if (stcb) {
4587                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4588                         } else {
4589                                 /*
4590                                  * We increment here since
4591                                  * sctp_findassociation_ep_addr() wil do a
4592                                  * decrement if it finds the stcb as long as
4593                                  * the locked tcb (last argument) is NOT a
4594                                  * TCB.. aka NULL.
4595                                  */
4596                                 SCTP_INP_INCR_REF(inp);
4597                                 stcb = sctp_findassociation_ep_addr(&inp,
4598                                     (struct sockaddr *)&paddrp->spp_address,
4599                                     &net, NULL, NULL);
4600                                 if (stcb == NULL) {
4601                                         SCTP_INP_DECR_REF(inp);
4602                                 }
4603                         }
4604                         if (stcb && (net == NULL)) {
4605                                 struct sockaddr *sa;
4606
4607                                 sa = (struct sockaddr *)&paddrp->spp_address;
4608 #ifdef INET
4609                                 if (sa->sa_family == AF_INET) {
4610
4611                                         struct sockaddr_in *sin;
4612
4613                                         sin = (struct sockaddr_in *)sa;
4614                                         if (sin->sin_addr.s_addr) {
4615                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4616                                                 SCTP_TCB_UNLOCK(stcb);
4617                                                 error = EINVAL;
4618                                                 break;
4619                                         }
4620                                 } else
4621 #endif
4622 #ifdef INET6
4623                                 if (sa->sa_family == AF_INET6) {
4624                                         struct sockaddr_in6 *sin6;
4625
4626                                         sin6 = (struct sockaddr_in6 *)sa;
4627                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4628                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4629                                                 SCTP_TCB_UNLOCK(stcb);
4630                                                 error = EINVAL;
4631                                                 break;
4632                                         }
4633                                 } else
4634 #endif
4635                                 {
4636                                         error = EAFNOSUPPORT;
4637                                         SCTP_TCB_UNLOCK(stcb);
4638                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4639                                         break;
4640                                 }
4641                         }
4642                         /* sanity checks */
4643                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4644                                 if (stcb)
4645                                         SCTP_TCB_UNLOCK(stcb);
4646                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4647                                 return (EINVAL);
4648                         }
4649                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4650                                 if (stcb)
4651                                         SCTP_TCB_UNLOCK(stcb);
4652                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4653                                 return (EINVAL);
4654                         }
4655                         if (stcb) {
4656                                 /************************TCB SPECIFIC SET ******************/
4657                                 /*
4658                                  * do we change the timer for HB, we run
4659                                  * only one?
4660                                  */
4661                                 int ovh = 0;
4662
4663                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4664                                         ovh = SCTP_MED_OVERHEAD;
4665                                 } else {
4666                                         ovh = SCTP_MED_V4_OVERHEAD;
4667                                 }
4668
4669                                 /* network sets ? */
4670                                 if (net) {
4671                                         /************************NET SPECIFIC SET ******************/
4672                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4673                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4674                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4675                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4676                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4677                                                 }
4678                                                 net->dest_state |= SCTP_ADDR_NOHB;
4679                                         }
4680                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4681                                                 if (paddrp->spp_hbinterval) {
4682                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4683                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4684                                                         net->heart_beat_delay = 0;
4685                                                 }
4686                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4687                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4688                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4689                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4690                                         }
4691                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4692                                                 /* on demand HB */
4693                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4694                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
4695                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4696                                         }
4697                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4698                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4699                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4700                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4701                                                 }
4702                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
4703                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4704                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4705                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4706                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
4707                                                         }
4708                                                 }
4709                                         }
4710                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4711                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4712                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4713                                                 }
4714                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4715                                         }
4716                                         if (paddrp->spp_pathmaxrxt) {
4717                                                 if (net->dest_state & SCTP_ADDR_PF) {
4718                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4719                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4720                                                         }
4721                                                 } else {
4722                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4723                                                             (net->error_count > net->pf_threshold)) {
4724                                                                 net->dest_state |= SCTP_ADDR_PF;
4725                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4726                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4727                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4728                                                         }
4729                                                 }
4730                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4731                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4732                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4733                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4734                                                         }
4735                                                 } else {
4736                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4737                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4738                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4739                                                         }
4740                                                 }
4741                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4742                                         }
4743                                         if (paddrp->spp_flags & SPP_DSCP) {
4744                                                 net->dscp = paddrp->spp_dscp & 0xfc;
4745                                                 net->dscp |= 0x01;
4746                                         }
4747 #ifdef INET6
4748                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4749                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4750                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4751                                                         net->flowlabel |= 0x80000000;
4752                                                 }
4753                                         }
4754 #endif
4755                                 } else {
4756                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4757                                         if (paddrp->spp_pathmaxrxt) {
4758                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4759                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4760                                                         if (net->dest_state & SCTP_ADDR_PF) {
4761                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4762                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4763                                                                 }
4764                                                         } else {
4765                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4766                                                                     (net->error_count > net->pf_threshold)) {
4767                                                                         net->dest_state |= SCTP_ADDR_PF;
4768                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4769                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4770                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4771                                                                 }
4772                                                         }
4773                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4774                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4775                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4776                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4777                                                                 }
4778                                                         } else {
4779                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4780                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4781                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4782                                                                 }
4783                                                         }
4784                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4785                                                 }
4786                                         }
4787                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4788                                                 if (paddrp->spp_hbinterval) {
4789                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4790                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4791                                                         stcb->asoc.heart_beat_delay = 0;
4792                                                 }
4793                                                 /* Turn back on the timer */
4794                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4795                                                         if (paddrp->spp_hbinterval) {
4796                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4797                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4798                                                                 net->heart_beat_delay = 0;
4799                                                         }
4800                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4801                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4802                                                         }
4803                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4804                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4805                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4806                                                 }
4807                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4808                                         }
4809                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4810                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4811                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4812                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4813                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4814                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4815                                                                 }
4816                                                         }
4817                                                 }
4818                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4819                                         }
4820                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4821                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4822                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4823                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4824                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4825                                                         }
4826                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
4827                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4828                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4829                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4830                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
4831                                                                 }
4832                                                         }
4833                                                 }
4834                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4835                                         }
4836                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4837                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4838                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4839                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4840                                                         }
4841                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4842                                                 }
4843                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4844                                         }
4845                                         if (paddrp->spp_flags & SPP_DSCP) {
4846                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4847                                                         net->dscp = paddrp->spp_dscp & 0xfc;
4848                                                         net->dscp |= 0x01;
4849                                                 }
4850                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
4851                                                 stcb->asoc.default_dscp |= 0x01;
4852                                         }
4853 #ifdef INET6
4854                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4855                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4856                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4857                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4858                                                                 net->flowlabel |= 0x80000000;
4859                                                         }
4860                                                 }
4861                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4862                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4863                                         }
4864 #endif
4865                                 }
4866                                 SCTP_TCB_UNLOCK(stcb);
4867                         } else {
4868                                 /************************NO TCB, SET TO default stuff ******************/
4869                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4870                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4871                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4872                                         SCTP_INP_WLOCK(inp);
4873                                         /*
4874                                          * For the TOS/FLOWLABEL stuff you
4875                                          * set it with the options on the
4876                                          * socket
4877                                          */
4878                                         if (paddrp->spp_pathmaxrxt) {
4879                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
4880                                         }
4881                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
4882                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4883                                         else if (paddrp->spp_hbinterval) {
4884                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
4885                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
4886                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4887                                         }
4888                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4889                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4890                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4891                                                 } else if (paddrp->spp_hbinterval) {
4892                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4893                                                 }
4894                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4895                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
4896                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4897                                         }
4898                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4899                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4900                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
4901                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4902                                         }
4903                                         if (paddrp->spp_flags & SPP_DSCP) {
4904                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
4905                                                 inp->sctp_ep.default_dscp |= 0x01;
4906                                         }
4907 #ifdef INET6
4908                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4909                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4910                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4911                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
4912                                                 }
4913                                         }
4914 #endif
4915                                         SCTP_INP_WUNLOCK(inp);
4916                                 } else {
4917                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4918                                         error = EINVAL;
4919                                 }
4920                         }
4921                         break;
4922                 }
4923         case SCTP_RTOINFO:
4924                 {
4925                         struct sctp_rtoinfo *srto;
4926                         uint32_t new_init, new_min, new_max;
4927
4928                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
4929                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
4930
4931                         if (stcb) {
4932                                 if (srto->srto_initial)
4933                                         new_init = srto->srto_initial;
4934                                 else
4935                                         new_init = stcb->asoc.initial_rto;
4936                                 if (srto->srto_max)
4937                                         new_max = srto->srto_max;
4938                                 else
4939                                         new_max = stcb->asoc.maxrto;
4940                                 if (srto->srto_min)
4941                                         new_min = srto->srto_min;
4942                                 else
4943                                         new_min = stcb->asoc.minrto;
4944                                 if ((new_min <= new_init) && (new_init <= new_max)) {
4945                                         stcb->asoc.initial_rto = new_init;
4946                                         stcb->asoc.maxrto = new_max;
4947                                         stcb->asoc.minrto = new_min;
4948                                 } else {
4949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4950                                         error = EINVAL;
4951                                 }
4952                                 SCTP_TCB_UNLOCK(stcb);
4953                         } else {
4954                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4955                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4956                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
4957                                         SCTP_INP_WLOCK(inp);
4958                                         if (srto->srto_initial)
4959                                                 new_init = srto->srto_initial;
4960                                         else
4961                                                 new_init = inp->sctp_ep.initial_rto;
4962                                         if (srto->srto_max)
4963                                                 new_max = srto->srto_max;
4964                                         else
4965                                                 new_max = inp->sctp_ep.sctp_maxrto;
4966                                         if (srto->srto_min)
4967                                                 new_min = srto->srto_min;
4968                                         else
4969                                                 new_min = inp->sctp_ep.sctp_minrto;
4970                                         if ((new_min <= new_init) && (new_init <= new_max)) {
4971                                                 inp->sctp_ep.initial_rto = new_init;
4972                                                 inp->sctp_ep.sctp_maxrto = new_max;
4973                                                 inp->sctp_ep.sctp_minrto = new_min;
4974                                         } else {
4975                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4976                                                 error = EINVAL;
4977                                         }
4978                                         SCTP_INP_WUNLOCK(inp);
4979                                 } else {
4980                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4981                                         error = EINVAL;
4982                                 }
4983                         }
4984                         break;
4985                 }
4986         case SCTP_ASSOCINFO:
4987                 {
4988                         struct sctp_assocparams *sasoc;
4989
4990                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
4991                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
4992                         if (sasoc->sasoc_cookie_life) {
4993                                 /* boundary check the cookie life */
4994                                 if (sasoc->sasoc_cookie_life < 1000)
4995                                         sasoc->sasoc_cookie_life = 1000;
4996                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
4997                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
4998                                 }
4999                         }
5000                         if (stcb) {
5001                                 if (sasoc->sasoc_asocmaxrxt)
5002                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5003                                 if (sasoc->sasoc_cookie_life) {
5004                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5005                                 }
5006                                 SCTP_TCB_UNLOCK(stcb);
5007                         } else {
5008                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5009                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5010                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5011                                         SCTP_INP_WLOCK(inp);
5012                                         if (sasoc->sasoc_asocmaxrxt)
5013                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5014                                         if (sasoc->sasoc_cookie_life) {
5015                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5016                                         }
5017                                         SCTP_INP_WUNLOCK(inp);
5018                                 } else {
5019                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5020                                         error = EINVAL;
5021                                 }
5022                         }
5023                         break;
5024                 }
5025         case SCTP_INITMSG:
5026                 {
5027                         struct sctp_initmsg *sinit;
5028
5029                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5030                         SCTP_INP_WLOCK(inp);
5031                         if (sinit->sinit_num_ostreams)
5032                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5033
5034                         if (sinit->sinit_max_instreams)
5035                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5036
5037                         if (sinit->sinit_max_attempts)
5038                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5039
5040                         if (sinit->sinit_max_init_timeo)
5041                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5042                         SCTP_INP_WUNLOCK(inp);
5043                         break;
5044                 }
5045         case SCTP_PRIMARY_ADDR:
5046                 {
5047                         struct sctp_setprim *spa;
5048                         struct sctp_nets *net;
5049
5050                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5051                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5052
5053                         net = NULL;
5054                         if (stcb) {
5055                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
5056                         } else {
5057                                 /*
5058                                  * We increment here since
5059                                  * sctp_findassociation_ep_addr() wil do a
5060                                  * decrement if it finds the stcb as long as
5061                                  * the locked tcb (last argument) is NOT a
5062                                  * TCB.. aka NULL.
5063                                  */
5064                                 SCTP_INP_INCR_REF(inp);
5065                                 stcb = sctp_findassociation_ep_addr(&inp,
5066                                     (struct sockaddr *)&spa->ssp_addr,
5067                                     &net, NULL, NULL);
5068                                 if (stcb == NULL) {
5069                                         SCTP_INP_DECR_REF(inp);
5070                                 }
5071                         }
5072
5073                         if ((stcb) && (net)) {
5074                                 if ((net != stcb->asoc.primary_destination) &&
5075                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5076                                         /* Ok we need to set it */
5077                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5078                                                 if ((stcb->asoc.alternate) &&
5079                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5080                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5081                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5082                                                         stcb->asoc.alternate = NULL;
5083                                                 }
5084                                         }
5085                                 }
5086                         } else {
5087                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5088                                 error = EINVAL;
5089                         }
5090                         if (stcb) {
5091                                 SCTP_TCB_UNLOCK(stcb);
5092                         }
5093                         break;
5094                 }
5095         case SCTP_SET_DYNAMIC_PRIMARY:
5096                 {
5097                         union sctp_sockstore *ss;
5098
5099                         error = priv_check(curthread,
5100                             PRIV_NETINET_RESERVEDPORT);
5101                         if (error)
5102                                 break;
5103
5104                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5105                         /* SUPER USER CHECK? */
5106                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5107                         break;
5108                 }
5109         case SCTP_SET_PEER_PRIMARY_ADDR:
5110                 {
5111                         struct sctp_setpeerprim *sspp;
5112
5113                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5114                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5115                         if (stcb != NULL) {
5116                                 struct sctp_ifa *ifa;
5117
5118                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5119                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5120                                 if (ifa == NULL) {
5121                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5122                                         error = EINVAL;
5123                                         goto out_of_it;
5124                                 }
5125                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5126                                         /*
5127                                          * Must validate the ifa found is in
5128                                          * our ep
5129                                          */
5130                                         struct sctp_laddr *laddr;
5131                                         int found = 0;
5132
5133                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5134                                                 if (laddr->ifa == NULL) {
5135                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5136                                                             __FUNCTION__);
5137                                                         continue;
5138                                                 }
5139                                                 if (laddr->ifa == ifa) {
5140                                                         found = 1;
5141                                                         break;
5142                                                 }
5143                                         }
5144                                         if (!found) {
5145                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5146                                                 error = EINVAL;
5147                                                 goto out_of_it;
5148                                         }
5149                                 }
5150                                 if (sctp_set_primary_ip_address_sa(stcb,
5151                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5152                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5153                                         error = EINVAL;
5154                                 }
5155                 out_of_it:
5156                                 SCTP_TCB_UNLOCK(stcb);
5157                         } else {
5158                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5159                                 error = EINVAL;
5160                         }
5161                         break;
5162                 }
5163         case SCTP_BINDX_ADD_ADDR:
5164                 {
5165                         struct sctp_getaddresses *addrs;
5166                         size_t sz;
5167                         struct thread *td;
5168
5169                         td = (struct thread *)p;
5170                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5171                             optsize);
5172 #ifdef INET
5173                         if (addrs->addr->sa_family == AF_INET) {
5174                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5175                                 if (optsize < sz) {
5176                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5177                                         error = EINVAL;
5178                                         break;
5179                                 }
5180                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5181                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5182                                         break;
5183                                 }
5184                         } else
5185 #endif
5186 #ifdef INET6
5187                         if (addrs->addr->sa_family == AF_INET6) {
5188                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5189                                 if (optsize < sz) {
5190                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5191                                         error = EINVAL;
5192                                         break;
5193                                 }
5194                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5195                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5196                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5197                                         break;
5198                                 }
5199                         } else
5200 #endif
5201                         {
5202                                 error = EAFNOSUPPORT;
5203                                 break;
5204                         }
5205                         sctp_bindx_add_address(so, inp, addrs->addr,
5206                             addrs->sget_assoc_id, vrf_id,
5207                             &error, p);
5208                         break;
5209                 }
5210         case SCTP_BINDX_REM_ADDR:
5211                 {
5212                         struct sctp_getaddresses *addrs;
5213                         size_t sz;
5214                         struct thread *td;
5215
5216                         td = (struct thread *)p;
5217
5218                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5219 #ifdef INET
5220                         if (addrs->addr->sa_family == AF_INET) {
5221                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5222                                 if (optsize < sz) {
5223                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5224                                         error = EINVAL;
5225                                         break;
5226                                 }
5227                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5228                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5229                                         break;
5230                                 }
5231                         } else
5232 #endif
5233 #ifdef INET6
5234                         if (addrs->addr->sa_family == AF_INET6) {
5235                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5236                                 if (optsize < sz) {
5237                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5238                                         error = EINVAL;
5239                                         break;
5240                                 }
5241                                 if (td != NULL &&
5242                                     (error = prison_local_ip6(td->td_ucred,
5243                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5244                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5245                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5246                                         break;
5247                                 }
5248                         } else
5249 #endif
5250                         {
5251                                 error = EAFNOSUPPORT;
5252                                 break;
5253                         }
5254                         sctp_bindx_delete_address(inp, addrs->addr,
5255                             addrs->sget_assoc_id, vrf_id,
5256                             &error);
5257                         break;
5258                 }
5259         case SCTP_EVENT:
5260                 {
5261                         struct sctp_event *event;
5262                         uint32_t event_type;
5263
5264                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5265                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5266                         switch (event->se_type) {
5267                         case SCTP_ASSOC_CHANGE:
5268                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5269                                 break;
5270                         case SCTP_PEER_ADDR_CHANGE:
5271                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5272                                 break;
5273                         case SCTP_REMOTE_ERROR:
5274                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5275                                 break;
5276                         case SCTP_SEND_FAILED:
5277                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5278                                 break;
5279                         case SCTP_SHUTDOWN_EVENT:
5280                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5281                                 break;
5282                         case SCTP_ADAPTATION_INDICATION:
5283                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5284                                 break;
5285                         case SCTP_PARTIAL_DELIVERY_EVENT:
5286                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5287                                 break;
5288                         case SCTP_AUTHENTICATION_EVENT:
5289                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5290                                 break;
5291                         case SCTP_STREAM_RESET_EVENT:
5292                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5293                                 break;
5294                         case SCTP_SENDER_DRY_EVENT:
5295                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5296                                 break;
5297                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5298                                 event_type = 0;
5299                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5300                                 error = ENOTSUP;
5301                                 break;
5302                         default:
5303                                 event_type = 0;
5304                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5305                                 error = EINVAL;
5306                                 break;
5307                         }
5308                         if (event_type > 0) {
5309                                 if (stcb) {
5310                                         if (event->se_on) {
5311                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5312                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5313                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5314                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5315                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5316                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5317                                                         }
5318                                                 }
5319                                         } else {
5320                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5321                                         }
5322                                         SCTP_TCB_UNLOCK(stcb);
5323                                 } else {
5324                                         /*
5325                                          * We don't want to send up a storm
5326                                          * of events, so return an error for
5327                                          * sender dry events
5328                                          */
5329                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5330                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5331                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5332                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5333                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5334                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5335                                                 error = ENOTSUP;
5336                                                 break;
5337                                         }
5338                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5339                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5340                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5341                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5342                                                 SCTP_INP_WLOCK(inp);
5343                                                 if (event->se_on) {
5344                                                         sctp_feature_on(inp, event_type);
5345                                                 } else {
5346                                                         sctp_feature_off(inp, event_type);
5347                                                 }
5348                                                 SCTP_INP_WUNLOCK(inp);
5349                                         }
5350                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5351                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5352                                                 SCTP_INP_RLOCK(inp);
5353                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5354                                                         SCTP_TCB_LOCK(stcb);
5355                                                         if (event->se_on) {
5356                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5357                                                         } else {
5358                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5359                                                         }
5360                                                         SCTP_TCB_UNLOCK(stcb);
5361                                                 }
5362                                                 SCTP_INP_RUNLOCK(inp);
5363                                         }
5364                                 }
5365                         }
5366                         break;
5367                 }
5368         case SCTP_RECVRCVINFO:
5369                 {
5370                         int *onoff;
5371
5372                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5373                         SCTP_INP_WLOCK(inp);
5374                         if (*onoff != 0) {
5375                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5376                         } else {
5377                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5378                         }
5379                         SCTP_INP_WUNLOCK(inp);
5380                         break;
5381                 }
5382         case SCTP_RECVNXTINFO:
5383                 {
5384                         int *onoff;
5385
5386                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5387                         SCTP_INP_WLOCK(inp);
5388                         if (*onoff != 0) {
5389                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5390                         } else {
5391                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5392                         }
5393                         SCTP_INP_WUNLOCK(inp);
5394                         break;
5395                 }
5396         case SCTP_DEFAULT_SNDINFO:
5397                 {
5398                         struct sctp_sndinfo *info;
5399                         uint16_t policy;
5400
5401                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5402                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5403
5404                         if (stcb) {
5405                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5406                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5407                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5408                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5409                                         stcb->asoc.def_send.sinfo_flags |= policy;
5410                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5411                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5412                                 } else {
5413                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5414                                         error = EINVAL;
5415                                 }
5416                                 SCTP_TCB_UNLOCK(stcb);
5417                         } else {
5418                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5419                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5420                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5421                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5422                                         SCTP_INP_WLOCK(inp);
5423                                         inp->def_send.sinfo_stream = info->snd_sid;
5424                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5425                                         inp->def_send.sinfo_flags = info->snd_flags;
5426                                         inp->def_send.sinfo_flags |= policy;
5427                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5428                                         inp->def_send.sinfo_context = info->snd_context;
5429                                         SCTP_INP_WUNLOCK(inp);
5430                                 }
5431                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5432                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5433                                         SCTP_INP_RLOCK(inp);
5434                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5435                                                 SCTP_TCB_LOCK(stcb);
5436                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5437                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5438                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5439                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5440                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5441                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5442                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5443                                                 }
5444                                                 SCTP_TCB_UNLOCK(stcb);
5445                                         }
5446                                         SCTP_INP_RUNLOCK(inp);
5447                                 }
5448                         }
5449                         break;
5450                 }
5451         case SCTP_DEFAULT_PRINFO:
5452                 {
5453                         struct sctp_default_prinfo *info;
5454
5455                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5456                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5457
5458                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5459                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5460                                 error = EINVAL;
5461                                 break;
5462                         }
5463                         if (stcb) {
5464                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5465                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5466                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5467                                 SCTP_TCB_UNLOCK(stcb);
5468                         } else {
5469                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5470                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5471                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5472                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5473                                         SCTP_INP_WLOCK(inp);
5474                                         inp->def_send.sinfo_flags &= 0xfff0;
5475                                         inp->def_send.sinfo_flags |= info->pr_policy;
5476                                         inp->def_send.sinfo_timetolive = info->pr_value;
5477                                         SCTP_INP_WUNLOCK(inp);
5478                                 }
5479                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5480                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5481                                         SCTP_INP_RLOCK(inp);
5482                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5483                                                 SCTP_TCB_LOCK(stcb);
5484                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5485                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5486                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5487                                                 SCTP_TCB_UNLOCK(stcb);
5488                                         }
5489                                         SCTP_INP_RUNLOCK(inp);
5490                                 }
5491                         }
5492                         break;
5493                 }
5494         case SCTP_PEER_ADDR_THLDS:
5495                 /* Applies to the specific association */
5496                 {
5497                         struct sctp_paddrthlds *thlds;
5498                         struct sctp_nets *net;
5499
5500                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5501                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5502                         net = NULL;
5503                         if (stcb) {
5504                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5505                         } else {
5506                                 /*
5507                                  * We increment here since
5508                                  * sctp_findassociation_ep_addr() wil do a
5509                                  * decrement if it finds the stcb as long as
5510                                  * the locked tcb (last argument) is NOT a
5511                                  * TCB.. aka NULL.
5512                                  */
5513                                 SCTP_INP_INCR_REF(inp);
5514                                 stcb = sctp_findassociation_ep_addr(&inp,
5515                                     (struct sockaddr *)&thlds->spt_assoc_id,
5516                                     &net, NULL, NULL);
5517                                 if (stcb == NULL) {
5518                                         SCTP_INP_DECR_REF(inp);
5519                                 }
5520                         }
5521                         if (stcb && (net == NULL)) {
5522                                 struct sockaddr *sa;
5523
5524                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5525 #ifdef INET
5526                                 if (sa->sa_family == AF_INET) {
5527
5528                                         struct sockaddr_in *sin;
5529
5530                                         sin = (struct sockaddr_in *)sa;
5531                                         if (sin->sin_addr.s_addr) {
5532                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5533                                                 SCTP_TCB_UNLOCK(stcb);
5534                                                 error = EINVAL;
5535                                                 break;
5536                                         }
5537                                 } else
5538 #endif
5539 #ifdef INET6
5540                                 if (sa->sa_family == AF_INET6) {
5541                                         struct sockaddr_in6 *sin6;
5542
5543                                         sin6 = (struct sockaddr_in6 *)sa;
5544                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5545                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5546                                                 SCTP_TCB_UNLOCK(stcb);
5547                                                 error = EINVAL;
5548                                                 break;
5549                                         }
5550                                 } else
5551 #endif
5552                                 {
5553                                         error = EAFNOSUPPORT;
5554                                         SCTP_TCB_UNLOCK(stcb);
5555                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5556                                         break;
5557                                 }
5558                         }
5559                         if (stcb) {
5560                                 if (net) {
5561                                         if (net->dest_state & SCTP_ADDR_PF) {
5562                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5563                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5564                                                         net->dest_state &= ~SCTP_ADDR_PF;
5565                                                 }
5566                                         } else {
5567                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5568                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5569                                                         net->dest_state |= SCTP_ADDR_PF;
5570                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5571                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5572                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5573                                                 }
5574                                         }
5575                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5576                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5577                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5578                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5579                                                 }
5580                                         } else {
5581                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5582                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5583                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5584                                                 }
5585                                         }
5586                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5587                                         net->pf_threshold = thlds->spt_pathpfthld;
5588                                 } else {
5589                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5590                                                 if (net->dest_state & SCTP_ADDR_PF) {
5591                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5592                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5593                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5594                                                         }
5595                                                 } else {
5596                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5597                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5598                                                                 net->dest_state |= SCTP_ADDR_PF;
5599                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5600                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5601                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5602                                                         }
5603                                                 }
5604                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5605                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5606                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5607                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5608                                                         }
5609                                                 } else {
5610                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5611                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5612                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5613                                                         }
5614                                                 }
5615                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5616                                                 net->pf_threshold = thlds->spt_pathpfthld;
5617                                         }
5618                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5619                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5620                                 }
5621                         } else {
5622                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5623                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5624                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5625                                         SCTP_INP_WLOCK(inp);
5626                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5627                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5628                                         SCTP_INP_WUNLOCK(inp);
5629                                 } else {
5630                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5631                                         error = EINVAL;
5632                                 }
5633                         }
5634                         break;
5635                 }
5636         case SCTP_REMOTE_UDP_ENCAPS_PORT:
5637                 {
5638                         struct sctp_udpencaps *encaps;
5639                         struct sctp_nets *net;
5640
5641                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
5642                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
5643                         if (stcb) {
5644                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
5645                         } else {
5646                                 /*
5647                                  * We increment here since
5648                                  * sctp_findassociation_ep_addr() wil do a
5649                                  * decrement if it finds the stcb as long as
5650                                  * the locked tcb (last argument) is NOT a
5651                                  * TCB.. aka NULL.
5652                                  */
5653                                 net = NULL;
5654                                 SCTP_INP_INCR_REF(inp);
5655                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
5656                                 if (stcb == NULL) {
5657                                         SCTP_INP_DECR_REF(inp);
5658                                 }
5659                         }
5660                         if (stcb && (net == NULL)) {
5661                                 struct sockaddr *sa;
5662
5663                                 sa = (struct sockaddr *)&encaps->sue_address;
5664 #ifdef INET
5665                                 if (sa->sa_family == AF_INET) {
5666
5667                                         struct sockaddr_in *sin;
5668
5669                                         sin = (struct sockaddr_in *)sa;
5670                                         if (sin->sin_addr.s_addr) {
5671                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5672                                                 SCTP_TCB_UNLOCK(stcb);
5673                                                 error = EINVAL;
5674                                                 break;
5675                                         }
5676                                 } else
5677 #endif
5678 #ifdef INET6
5679                                 if (sa->sa_family == AF_INET6) {
5680                                         struct sockaddr_in6 *sin6;
5681
5682                                         sin6 = (struct sockaddr_in6 *)sa;
5683                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5684                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5685                                                 SCTP_TCB_UNLOCK(stcb);
5686                                                 error = EINVAL;
5687                                                 break;
5688                                         }
5689                                 } else
5690 #endif
5691                                 {
5692                                         error = EAFNOSUPPORT;
5693                                         SCTP_TCB_UNLOCK(stcb);
5694                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5695                                         break;
5696                                 }
5697                         }
5698                         if (stcb) {
5699                                 if (net) {
5700                                         net->port = encaps->sue_port;
5701                                 } else {
5702                                         stcb->asoc.port = encaps->sue_port;
5703                                 }
5704                                 SCTP_TCB_UNLOCK(stcb);
5705                         } else {
5706                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5707                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5708                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
5709                                         SCTP_INP_WLOCK(inp);
5710                                         inp->sctp_ep.port = encaps->sue_port;
5711                                         SCTP_INP_WUNLOCK(inp);
5712                                 } else {
5713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5714                                         error = EINVAL;
5715                                 }
5716                         }
5717                         break;
5718                 }
5719         default:
5720                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5721                 error = ENOPROTOOPT;
5722                 break;
5723         }                       /* end switch (opt) */
5724         return (error);
5725 }
5726
5727 int
5728 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5729 {
5730         void *optval = NULL;
5731         size_t optsize = 0;
5732         struct sctp_inpcb *inp;
5733         void *p;
5734         int error = 0;
5735
5736         inp = (struct sctp_inpcb *)so->so_pcb;
5737         if (inp == 0) {
5738                 /* I made the same as TCP since we are not setup? */
5739                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5740                 return (ECONNRESET);
5741         }
5742         if (sopt->sopt_level != IPPROTO_SCTP) {
5743                 /* wrong proto level... send back up to IP */
5744 #ifdef INET6
5745                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5746                         error = ip6_ctloutput(so, sopt);
5747 #endif                          /* INET6 */
5748 #if defined(INET) && defined (INET6)
5749                 else
5750 #endif
5751 #ifdef INET
5752                         error = ip_ctloutput(so, sopt);
5753 #endif
5754                 return (error);
5755         }
5756         optsize = sopt->sopt_valsize;
5757         if (optsize) {
5758                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5759                 if (optval == NULL) {
5760                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5761                         return (ENOBUFS);
5762                 }
5763                 error = sooptcopyin(sopt, optval, optsize, optsize);
5764                 if (error) {
5765                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5766                         goto out;
5767                 }
5768         }
5769         p = (void *)sopt->sopt_td;
5770         if (sopt->sopt_dir == SOPT_SET) {
5771                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5772         } else if (sopt->sopt_dir == SOPT_GET) {
5773                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5774         } else {
5775                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5776                 error = EINVAL;
5777         }
5778         if ((error == 0) && (optval != NULL)) {
5779                 error = sooptcopyout(sopt, optval, optsize);
5780                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5781         } else if (optval != NULL) {
5782                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5783         }
5784 out:
5785         return (error);
5786 }
5787
5788 #ifdef INET
5789 static int
5790 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5791 {
5792         int error = 0;
5793         int create_lock_on = 0;
5794         uint32_t vrf_id;
5795         struct sctp_inpcb *inp;
5796         struct sctp_tcb *stcb = NULL;
5797
5798         inp = (struct sctp_inpcb *)so->so_pcb;
5799         if (inp == 0) {
5800                 /* I made the same as TCP since we are not setup? */
5801                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5802                 return (ECONNRESET);
5803         }
5804         if (addr == NULL) {
5805                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5806                 return EINVAL;
5807         }
5808         switch (addr->sa_family) {
5809 #ifdef INET6
5810         case AF_INET6:
5811                 {
5812                         struct sockaddr_in6 *sin6p;
5813
5814                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5815                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5816                                 return (EINVAL);
5817                         }
5818                         sin6p = (struct sockaddr_in6 *)addr;
5819                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5820                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5821                                 return (error);
5822                         }
5823                         break;
5824                 }
5825 #endif
5826 #ifdef INET
5827         case AF_INET:
5828                 {
5829                         struct sockaddr_in *sinp;
5830
5831                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5832                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5833                                 return (EINVAL);
5834                         }
5835                         sinp = (struct sockaddr_in *)addr;
5836                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5837                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5838                                 return (error);
5839                         }
5840                         break;
5841                 }
5842 #endif
5843         default:
5844                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5845                 return (EAFNOSUPPORT);
5846         }
5847         SCTP_INP_INCR_REF(inp);
5848         SCTP_ASOC_CREATE_LOCK(inp);
5849         create_lock_on = 1;
5850
5851
5852         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5853             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5854                 /* Should I really unlock ? */
5855                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5856                 error = EFAULT;
5857                 goto out_now;
5858         }
5859 #ifdef INET6
5860         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5861             (addr->sa_family == AF_INET6)) {
5862                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5863                 error = EINVAL;
5864                 goto out_now;
5865         }
5866 #endif                          /* INET6 */
5867         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5868             SCTP_PCB_FLAGS_UNBOUND) {
5869                 /* Bind a ephemeral port */
5870                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5871                 if (error) {
5872                         goto out_now;
5873                 }
5874         }
5875         /* Now do we connect? */
5876         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5877             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5878                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5879                 error = EINVAL;
5880                 goto out_now;
5881         }
5882         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5883             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5884                 /* We are already connected AND the TCP model */
5885                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5886                 error = EADDRINUSE;
5887                 goto out_now;
5888         }
5889         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
5890                 SCTP_INP_RLOCK(inp);
5891                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
5892                 SCTP_INP_RUNLOCK(inp);
5893         } else {
5894                 /*
5895                  * We increment here since sctp_findassociation_ep_addr()
5896                  * will do a decrement if it finds the stcb as long as the
5897                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
5898                  */
5899                 SCTP_INP_INCR_REF(inp);
5900                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
5901                 if (stcb == NULL) {
5902                         SCTP_INP_DECR_REF(inp);
5903                 } else {
5904                         SCTP_TCB_UNLOCK(stcb);
5905                 }
5906         }
5907         if (stcb != NULL) {
5908                 /* Already have or am bring up an association */
5909                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
5910                 error = EALREADY;
5911                 goto out_now;
5912         }
5913         vrf_id = inp->def_vrf_id;
5914         /* We are GOOD to go */
5915         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
5916         if (stcb == NULL) {
5917                 /* Gak! no memory */
5918                 goto out_now;
5919         }
5920         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
5921                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
5922                 /* Set the connected flag so we can queue data */
5923                 soisconnecting(so);
5924         }
5925         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
5926         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
5927
5928         /* initialize authentication parameters for the assoc */
5929         sctp_initialize_auth_params(inp, stcb);
5930
5931         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
5932         SCTP_TCB_UNLOCK(stcb);
5933 out_now:
5934         if (create_lock_on) {
5935                 SCTP_ASOC_CREATE_UNLOCK(inp);
5936         }
5937         SCTP_INP_DECR_REF(inp);
5938         return (error);
5939 }
5940
5941 #endif
5942
5943 int
5944 sctp_listen(struct socket *so, int backlog, struct thread *p)
5945 {
5946         /*
5947          * Note this module depends on the protocol processing being called
5948          * AFTER any socket level flags and backlog are applied to the
5949          * socket. The traditional way that the socket flags are applied is
5950          * AFTER protocol processing. We have made a change to the
5951          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
5952          * place if the socket API for SCTP is to work properly.
5953          */
5954
5955         int error = 0;
5956         struct sctp_inpcb *inp;
5957
5958         inp = (struct sctp_inpcb *)so->so_pcb;
5959         if (inp == 0) {
5960                 /* I made the same as TCP since we are not setup? */
5961                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5962                 return (ECONNRESET);
5963         }
5964         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
5965                 /* See if we have a listener */
5966                 struct sctp_inpcb *tinp;
5967                 union sctp_sockstore store, *sp;
5968
5969                 sp = &store;
5970                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5971                         /* not bound all */
5972                         struct sctp_laddr *laddr;
5973
5974                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5975                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
5976                                 switch (sp->sa.sa_family) {
5977 #ifdef INET
5978                                 case AF_INET:
5979                                         sp->sin.sin_port = inp->sctp_lport;
5980                                         break;
5981 #endif
5982 #ifdef INET6
5983                                 case AF_INET6:
5984                                         sp->sin6.sin6_port = inp->sctp_lport;
5985                                         break;
5986 #endif
5987                                 default:
5988                                         break;
5989                                 }
5990                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
5991                                 if (tinp && (tinp != inp) &&
5992                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
5993                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
5994                                     (tinp->sctp_socket->so_qlimit)) {
5995                                         /*
5996                                          * we have a listener already and
5997                                          * its not this inp.
5998                                          */
5999                                         SCTP_INP_DECR_REF(tinp);
6000                                         return (EADDRINUSE);
6001                                 } else if (tinp) {
6002                                         SCTP_INP_DECR_REF(tinp);
6003                                 }
6004                         }
6005                 } else {
6006                         /* Setup a local addr bound all */
6007                         memset(&store, 0, sizeof(store));
6008                         switch (sp->sa.sa_family) {
6009 #ifdef INET
6010                         case AF_INET:
6011                                 store.sin.sin_port = inp->sctp_lport;
6012                                 break;
6013 #endif
6014 #ifdef INET6
6015                         case AF_INET6:
6016                                 sp->sin6.sin6_port = inp->sctp_lport;
6017                                 break;
6018 #endif
6019                         default:
6020                                 break;
6021                         }
6022 #ifdef INET6
6023                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6024                                 store.sa.sa_family = AF_INET6;
6025                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6026                         }
6027 #endif
6028 #ifdef INET
6029                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6030                                 store.sa.sa_family = AF_INET;
6031                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6032                         }
6033 #endif
6034                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6035                         if (tinp && (tinp != inp) &&
6036                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6037                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6038                             (tinp->sctp_socket->so_qlimit)) {
6039                                 /*
6040                                  * we have a listener already and its not
6041                                  * this inp.
6042                                  */
6043                                 SCTP_INP_DECR_REF(tinp);
6044                                 return (EADDRINUSE);
6045                         } else if (tinp) {
6046                                 SCTP_INP_DECR_REF(inp);
6047                         }
6048                 }
6049         }
6050         SCTP_INP_RLOCK(inp);
6051 #ifdef SCTP_LOCK_LOGGING
6052         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6053                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6054         }
6055 #endif
6056         SOCK_LOCK(so);
6057         error = solisten_proto_check(so);
6058         if (error) {
6059                 SOCK_UNLOCK(so);
6060                 SCTP_INP_RUNLOCK(inp);
6061                 return (error);
6062         }
6063         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6064             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6065                 /*
6066                  * The unlucky case - We are in the tcp pool with this guy.
6067                  * - Someone else is in the main inp slot. - We must move
6068                  * this guy (the listener) to the main slot - We must then
6069                  * move the guy that was listener to the TCP Pool.
6070                  */
6071                 if (sctp_swap_inpcb_for_listen(inp)) {
6072                         goto in_use;
6073                 }
6074         }
6075         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6076             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6077                 /* We are already connected AND the TCP model */
6078 in_use:
6079                 SCTP_INP_RUNLOCK(inp);
6080                 SOCK_UNLOCK(so);
6081                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6082                 return (EADDRINUSE);
6083         }
6084         SCTP_INP_RUNLOCK(inp);
6085         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6086                 /* We must do a bind. */
6087                 SOCK_UNLOCK(so);
6088                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6089                         /* bind error, probably perm */
6090                         return (error);
6091                 }
6092                 SOCK_LOCK(so);
6093         }
6094         /* It appears for 7.0 and on, we must always call this. */
6095         solisten_proto(so, backlog);
6096         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6097                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6098                 so->so_options &= ~SO_ACCEPTCONN;
6099         }
6100         if (backlog == 0) {
6101                 /* turning off listen */
6102                 so->so_options &= ~SO_ACCEPTCONN;
6103         }
6104         SOCK_UNLOCK(so);
6105         return (error);
6106 }
6107
6108 static int sctp_defered_wakeup_cnt = 0;
6109
6110 int
6111 sctp_accept(struct socket *so, struct sockaddr **addr)
6112 {
6113         struct sctp_tcb *stcb;
6114         struct sctp_inpcb *inp;
6115         union sctp_sockstore store;
6116
6117 #ifdef INET6
6118         int error;
6119
6120 #endif
6121         inp = (struct sctp_inpcb *)so->so_pcb;
6122
6123         if (inp == 0) {
6124                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6125                 return (ECONNRESET);
6126         }
6127         SCTP_INP_RLOCK(inp);
6128         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6129                 SCTP_INP_RUNLOCK(inp);
6130                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6131                 return (EOPNOTSUPP);
6132         }
6133         if (so->so_state & SS_ISDISCONNECTED) {
6134                 SCTP_INP_RUNLOCK(inp);
6135                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6136                 return (ECONNABORTED);
6137         }
6138         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6139         if (stcb == NULL) {
6140                 SCTP_INP_RUNLOCK(inp);
6141                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6142                 return (ECONNRESET);
6143         }
6144         SCTP_TCB_LOCK(stcb);
6145         SCTP_INP_RUNLOCK(inp);
6146         store = stcb->asoc.primary_destination->ro._l_addr;
6147         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6148         SCTP_TCB_UNLOCK(stcb);
6149         switch (store.sa.sa_family) {
6150 #ifdef INET
6151         case AF_INET:
6152                 {
6153                         struct sockaddr_in *sin;
6154
6155                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6156                         if (sin == NULL)
6157                                 return (ENOMEM);
6158                         sin->sin_family = AF_INET;
6159                         sin->sin_len = sizeof(*sin);
6160                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
6161                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
6162                         *addr = (struct sockaddr *)sin;
6163                         break;
6164                 }
6165 #endif
6166 #ifdef INET6
6167         case AF_INET6:
6168                 {
6169                         struct sockaddr_in6 *sin6;
6170
6171                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
6172                         if (sin6 == NULL)
6173                                 return (ENOMEM);
6174                         sin6->sin6_family = AF_INET6;
6175                         sin6->sin6_len = sizeof(*sin6);
6176                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
6177
6178                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
6179                         if ((error = sa6_recoverscope(sin6)) != 0) {
6180                                 SCTP_FREE_SONAME(sin6);
6181                                 return (error);
6182                         }
6183                         *addr = (struct sockaddr *)sin6;
6184                         break;
6185                 }
6186 #endif
6187         default:
6188                 /* TSNH */
6189                 break;
6190         }
6191         /* Wake any delayed sleep action */
6192         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6193                 SCTP_INP_WLOCK(inp);
6194                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6195                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6196                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6197                         SCTP_INP_WUNLOCK(inp);
6198                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6199                         if (sowriteable(inp->sctp_socket)) {
6200                                 sowwakeup_locked(inp->sctp_socket);
6201                         } else {
6202                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6203                         }
6204                         SCTP_INP_WLOCK(inp);
6205                 }
6206                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6207                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6208                         SCTP_INP_WUNLOCK(inp);
6209                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6210                         if (soreadable(inp->sctp_socket)) {
6211                                 sctp_defered_wakeup_cnt++;
6212                                 sorwakeup_locked(inp->sctp_socket);
6213                         } else {
6214                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6215                         }
6216                         SCTP_INP_WLOCK(inp);
6217                 }
6218                 SCTP_INP_WUNLOCK(inp);
6219         }
6220         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6221                 SCTP_TCB_LOCK(stcb);
6222                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6223         }
6224         return (0);
6225 }
6226
6227 #ifdef INET
6228 int
6229 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6230 {
6231         struct sockaddr_in *sin;
6232         uint32_t vrf_id;
6233         struct sctp_inpcb *inp;
6234         struct sctp_ifa *sctp_ifa;
6235
6236         /*
6237          * Do the malloc first in case it blocks.
6238          */
6239         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6240         if (sin == NULL)
6241                 return (ENOMEM);
6242         sin->sin_family = AF_INET;
6243         sin->sin_len = sizeof(*sin);
6244         inp = (struct sctp_inpcb *)so->so_pcb;
6245         if (!inp) {
6246                 SCTP_FREE_SONAME(sin);
6247                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6248                 return (ECONNRESET);
6249         }
6250         SCTP_INP_RLOCK(inp);
6251         sin->sin_port = inp->sctp_lport;
6252         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6253                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6254                         struct sctp_tcb *stcb;
6255                         struct sockaddr_in *sin_a;
6256                         struct sctp_nets *net;
6257                         int fnd;
6258
6259                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6260                         if (stcb == NULL) {
6261                                 goto notConn;
6262                         }
6263                         fnd = 0;
6264                         sin_a = NULL;
6265                         SCTP_TCB_LOCK(stcb);
6266                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6267                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6268                                 if (sin_a == NULL)
6269                                         /* this will make coverity happy */
6270                                         continue;
6271
6272                                 if (sin_a->sin_family == AF_INET) {
6273                                         fnd = 1;
6274                                         break;
6275                                 }
6276                         }
6277                         if ((!fnd) || (sin_a == NULL)) {
6278                                 /* punt */
6279                                 SCTP_TCB_UNLOCK(stcb);
6280                                 goto notConn;
6281                         }
6282                         vrf_id = inp->def_vrf_id;
6283                         sctp_ifa = sctp_source_address_selection(inp,
6284                             stcb,
6285                             (sctp_route_t *) & net->ro,
6286                             net, 0, vrf_id);
6287                         if (sctp_ifa) {
6288                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6289                                 sctp_free_ifa(sctp_ifa);
6290                         }
6291                         SCTP_TCB_UNLOCK(stcb);
6292                 } else {
6293                         /* For the bound all case you get back 0 */
6294         notConn:
6295                         sin->sin_addr.s_addr = 0;
6296                 }
6297
6298         } else {
6299                 /* Take the first IPv4 address in the list */
6300                 struct sctp_laddr *laddr;
6301                 int fnd = 0;
6302
6303                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6304                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6305                                 struct sockaddr_in *sin_a;
6306
6307                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6308                                 sin->sin_addr = sin_a->sin_addr;
6309                                 fnd = 1;
6310                                 break;
6311                         }
6312                 }
6313                 if (!fnd) {
6314                         SCTP_FREE_SONAME(sin);
6315                         SCTP_INP_RUNLOCK(inp);
6316                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6317                         return (ENOENT);
6318                 }
6319         }
6320         SCTP_INP_RUNLOCK(inp);
6321         (*addr) = (struct sockaddr *)sin;
6322         return (0);
6323 }
6324
6325 int
6326 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6327 {
6328         struct sockaddr_in *sin;
6329         int fnd;
6330         struct sockaddr_in *sin_a;
6331         struct sctp_inpcb *inp;
6332         struct sctp_tcb *stcb;
6333         struct sctp_nets *net;
6334
6335         /* Do the malloc first in case it blocks. */
6336         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6337         if (sin == NULL)
6338                 return (ENOMEM);
6339         sin->sin_family = AF_INET;
6340         sin->sin_len = sizeof(*sin);
6341
6342         inp = (struct sctp_inpcb *)so->so_pcb;
6343         if ((inp == NULL) ||
6344             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6345                 /* UDP type and listeners will drop out here */
6346                 SCTP_FREE_SONAME(sin);
6347                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6348                 return (ENOTCONN);
6349         }
6350         SCTP_INP_RLOCK(inp);
6351         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6352         if (stcb) {
6353                 SCTP_TCB_LOCK(stcb);
6354         }
6355         SCTP_INP_RUNLOCK(inp);
6356         if (stcb == NULL) {
6357                 SCTP_FREE_SONAME(sin);
6358                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6359                 return (ECONNRESET);
6360         }
6361         fnd = 0;
6362         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6363                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6364                 if (sin_a->sin_family == AF_INET) {
6365                         fnd = 1;
6366                         sin->sin_port = stcb->rport;
6367                         sin->sin_addr = sin_a->sin_addr;
6368                         break;
6369                 }
6370         }
6371         SCTP_TCB_UNLOCK(stcb);
6372         if (!fnd) {
6373                 /* No IPv4 address */
6374                 SCTP_FREE_SONAME(sin);
6375                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6376                 return (ENOENT);
6377         }
6378         (*addr) = (struct sockaddr *)sin;
6379         return (0);
6380 }
6381
6382 #ifdef INET
6383 struct pr_usrreqs sctp_usrreqs = {
6384         .pru_abort = sctp_abort,
6385         .pru_accept = sctp_accept,
6386         .pru_attach = sctp_attach,
6387         .pru_bind = sctp_bind,
6388         .pru_connect = sctp_connect,
6389         .pru_control = in_control,
6390         .pru_close = sctp_close,
6391         .pru_detach = sctp_close,
6392         .pru_sopoll = sopoll_generic,
6393         .pru_flush = sctp_flush,
6394         .pru_disconnect = sctp_disconnect,
6395         .pru_listen = sctp_listen,
6396         .pru_peeraddr = sctp_peeraddr,
6397         .pru_send = sctp_sendm,
6398         .pru_shutdown = sctp_shutdown,
6399         .pru_sockaddr = sctp_ingetaddr,
6400         .pru_sosend = sctp_sosend,
6401         .pru_soreceive = sctp_soreceive
6402 };
6403
6404 #endif
6405 #endif