sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #endif
  43 #include <netinet/sctp_sysctl.h>
  44 #include <netinet/sctp_output.h>
  45 #include <netinet/sctp_uio.h>
  46 #include <netinet/sctp_asconf.h>
  47 #include <netinet/sctputil.h>
  48 #include <netinet/sctp_indata.h>
  49 #include <netinet/sctp_timer.h>
  50 #include <netinet/sctp_auth.h>
  51 #include <netinet/sctp_bsd_addr.h>
  52 #include <netinet/udp.h>
  53
  54
  55
  56 extern struct sctp_cc_functions sctp_cc_functions[];
  57 extern struct sctp_ss_functions sctp_ss_functions[];
  58
  59 void
  60 sctp_init(void)
  61 {
  62         u_long sb_max_adj;
  63
  64         /* Initialize and modify the sysctled variables */
  65         sctp_init_sysctls();
  66         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  67                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  68         /*
  69          * Allow a user to take no more than 1/2 the number of clusters or
  70          * the SB_MAX whichever is smaller for the send window.
  71          */
  72         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  73         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  74             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  75         /*
  76          * Now for the recv window, should we take the same amount? or
  77          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  78          * now I will just copy.
  79          */
  80         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  81         SCTP_BASE_VAR(first_time) = 0;
  82         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  83         sctp_pcb_init();
  84 #if defined(SCTP_PACKET_LOGGING)
  85         SCTP_BASE_VAR(packet_log_writers) = 0;
  86         SCTP_BASE_VAR(packet_log_end) = 0;
  87         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  88 #endif
  89 }
  90
  91 void
  92 sctp_finish(void)
  93 {
  94         sctp_pcb_finish();
  95 }
  96
  97
  98
  99 void
 100 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 101 {
 102         struct sctp_tmit_chunk *chk;
 103         uint16_t overhead;
 104
 105         /* Adjust that too */
 106         stcb->asoc.smallest_mtu = nxtsz;
 107         /* now off to subtract IP_DF flag if needed */
 108         overhead = IP_HDR_SIZE;
 109         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 110                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 111         }
 112         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 113                 if ((chk->send_size + overhead) > nxtsz) {
 114                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 115                 }
 116         }
 117         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 118                 if ((chk->send_size + overhead) > nxtsz) {
 119                         /*
 120                          * For this guy we also mark for immediate resend
 121                          * since we sent to big of chunk
 122                          */
 123                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 124                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 125                                 sctp_flight_size_decrease(chk);
 126                                 sctp_total_flight_decrease(stcb, chk);
 127                         }
 128                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 130                         }
 131                         chk->sent = SCTP_DATAGRAM_RESEND;
 132                         chk->rec.data.doing_fast_retransmit = 0;
 133                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 134                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 135                                     chk->whoTo->flight_size,
 136                                     chk->book_size,
 137                                     (uintptr_t) chk->whoTo,
 138                                     chk->rec.data.TSN_seq);
 139                         }
 140                         /* Clear any time so NO RTT is being done */
 141                         chk->do_rtt = 0;
 142                 }
 143         }
 144 }
 145
 146 #ifdef INET
 147 static void
 148 sctp_notify_mbuf(struct sctp_inpcb *inp,
 149     struct sctp_tcb *stcb,
 150     struct sctp_nets *net,
 151     struct ip *ip,
 152     struct sctphdr *sh)
 153 {
 154         struct icmp *icmph;
 155         int totsz, tmr_stopped = 0;
 156         uint16_t nxtsz;
 157
 158         /* protection */
 159         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 160             (ip == NULL) || (sh == NULL)) {
 161                 if (stcb != NULL) {
 162                         SCTP_TCB_UNLOCK(stcb);
 163                 }
 164                 return;
 165         }
 166         /* First job is to verify the vtag matches what I would send */
 167         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 168                 SCTP_TCB_UNLOCK(stcb);
 169                 return;
 170         }
 171         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 172             sizeof(struct ip)));
 173         if (icmph->icmp_type != ICMP_UNREACH) {
 174                 /* We only care about unreachable */
 175                 SCTP_TCB_UNLOCK(stcb);
 176                 return;
 177         }
 178         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 179                 /* not a unreachable message due to frag. */
 180                 SCTP_TCB_UNLOCK(stcb);
 181                 return;
 182         }
 183         totsz = ip->ip_len;
 184
 185         nxtsz = ntohs(icmph->icmp_nextmtu);
 186         if (nxtsz == 0) {
 187                 /*
 188                  * old type router that does not tell us what the next size
 189                  * mtu is. Rats we will have to guess (in a educated fashion
 190                  * of course)
 191                  */
 192                 nxtsz = sctp_get_prev_mtu(totsz);
 193         }
 194         /* Stop any PMTU timer */
 195         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 196                 tmr_stopped = 1;
 197                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 199         }
 200         /* Adjust destination size limit */
 201         if (net->mtu > nxtsz) {
 202                 net->mtu = nxtsz;
 203                 if (net->port) {
 204                         net->mtu -= sizeof(struct udphdr);
 205                 }
 206         }
 207         /* now what about the ep? */
 208         if (stcb->asoc.smallest_mtu > nxtsz) {
 209                 sctp_pathmtu_adjustment(stcb, nxtsz);
 210         }
 211         if (tmr_stopped)
 212                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 213
 214         SCTP_TCB_UNLOCK(stcb);
 215 }
 216
 217 #endif
 218
 219 void
 220 sctp_notify(struct sctp_inpcb *inp,
 221     struct ip *ip,
 222     struct sctphdr *sh,
 223     struct sockaddr *to,
 224     struct sctp_tcb *stcb,
 225     struct sctp_nets *net)
 226 {
 227 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 228         struct socket *so;
 229
 230 #endif
 231         struct icmp *icmph;
 232
 233         /* protection */
 234         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 235             (sh == NULL) || (to == NULL)) {
 236                 if (stcb)
 237                         SCTP_TCB_UNLOCK(stcb);
 238                 return;
 239         }
 240         /* First job is to verify the vtag matches what I would send */
 241         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 242                 SCTP_TCB_UNLOCK(stcb);
 243                 return;
 244         }
 245         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 246             sizeof(struct ip)));
 247         if (icmph->icmp_type != ICMP_UNREACH) {
 248                 /* We only care about unreachable */
 249                 SCTP_TCB_UNLOCK(stcb);
 250                 return;
 251         }
 252         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 253             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 254             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 255             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 256             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 257             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 258             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 259             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 260
 261                 /*
 262                  * Hmm reachablity problems we must examine closely. If its
 263                  * not reachable, we may have lost a network. Or if there is
 264                  * NO protocol at the other end named SCTP. well we consider
 265                  * it a OOTB abort.
 266                  */
 267                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 268                         /* Ok that destination is NOT reachable */
 269                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 270                         net->dest_state &= ~SCTP_ADDR_PF;
 271                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 272                             stcb, 0,
 273                             (void *)net, SCTP_SO_NOT_LOCKED);
 274                 }
 275                 SCTP_TCB_UNLOCK(stcb);
 276         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 277             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 278                 /*
 279                  * Here the peer is either playing tricks on us, including
 280                  * an address that belongs to someone who does not support
 281                  * SCTP OR was a userland implementation that shutdown and
 282                  * now is dead. In either case treat it like a OOTB abort
 283                  * with no TCB
 284                  */
 285                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 286 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 287                 so = SCTP_INP_SO(inp);
 288                 atomic_add_int(&stcb->asoc.refcnt, 1);
 289                 SCTP_TCB_UNLOCK(stcb);
 290                 SCTP_SOCKET_LOCK(so, 1);
 291                 SCTP_TCB_LOCK(stcb);
 292                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 293 #endif
 294                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 295 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 296                 SCTP_SOCKET_UNLOCK(so, 1);
 297                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 298 #endif
 299                 /* no need to unlock here, since the TCB is gone */
 300         } else {
 301                 SCTP_TCB_UNLOCK(stcb);
 302         }
 303 }
 304
 305 #ifdef INET
 306 void
 307 sctp_ctlinput(cmd, sa, vip)
 308         int cmd;
 309         struct sockaddr *sa;
 310         void *vip;
 311 {
 312         struct ip *ip = vip;
 313         struct sctphdr *sh;
 314         uint32_t vrf_id;
 315
 316         /* FIX, for non-bsd is this right? */
 317         vrf_id = SCTP_DEFAULT_VRFID;
 318         if (sa->sa_family != AF_INET ||
 319             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 320                 return;
 321         }
 322         if (PRC_IS_REDIRECT(cmd)) {
 323                 ip = 0;
 324         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 325                 return;
 326         }
 327         if (ip) {
 328                 struct sctp_inpcb *inp = NULL;
 329                 struct sctp_tcb *stcb = NULL;
 330                 struct sctp_nets *net = NULL;
 331                 struct sockaddr_in to, from;
 332
 333                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 334                 bzero(&to, sizeof(to));
 335                 bzero(&from, sizeof(from));
 336                 from.sin_family = to.sin_family = AF_INET;
 337                 from.sin_len = to.sin_len = sizeof(to);
 338                 from.sin_port = sh->src_port;
 339                 from.sin_addr = ip->ip_src;
 340                 to.sin_port = sh->dest_port;
 341                 to.sin_addr = ip->ip_dst;
 342
 343                 /*
 344                  * 'to' holds the dest of the packet that failed to be sent.
 345                  * 'from' holds our local endpoint address. Thus we reverse
 346                  * the to and the from in the lookup.
 347                  */
 348                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
 349                     (struct sockaddr *)&to,
 350                     &inp, &net, 1, vrf_id);
 351                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 352                         if (cmd != PRC_MSGSIZE) {
 353                                 sctp_notify(inp, ip, sh,
 354                                     (struct sockaddr *)&to, stcb,
 355                                     net);
 356                         } else {
 357                                 /* handle possible ICMP size messages */
 358                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 359                         }
 360                 } else {
 361                         if ((stcb == NULL) && (inp != NULL)) {
 362                                 /* reduce ref-count */
 363                                 SCTP_INP_WLOCK(inp);
 364                                 SCTP_INP_DECR_REF(inp);
 365                                 SCTP_INP_WUNLOCK(inp);
 366                         }
 367                         if (stcb) {
 368                                 SCTP_TCB_UNLOCK(stcb);
 369                         }
 370                 }
 371         }
 372         return;
 373 }
 374
 375 #endif
 376
 377 static int
 378 sctp_getcred(SYSCTL_HANDLER_ARGS)
 379 {
 380         struct xucred xuc;
 381         struct sockaddr_in addrs[2];
 382         struct sctp_inpcb *inp;
 383         struct sctp_nets *net;
 384         struct sctp_tcb *stcb;
 385         int error;
 386         uint32_t vrf_id;
 387
 388         /* FIX, for non-bsd is this right? */
 389         vrf_id = SCTP_DEFAULT_VRFID;
 390
 391         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 392
 393         if (error)
 394                 return (error);
 395
 396         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 397         if (error)
 398                 return (error);
 399
 400         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
 401             sintosa(&addrs[1]),
 402             &inp, &net, 1, vrf_id);
 403         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 404                 if ((inp != NULL) && (stcb == NULL)) {
 405                         /* reduce ref-count */
 406                         SCTP_INP_WLOCK(inp);
 407                         SCTP_INP_DECR_REF(inp);
 408                         goto cred_can_cont;
 409                 }
 410                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 411                 error = ENOENT;
 412                 goto out;
 413         }
 414         SCTP_TCB_UNLOCK(stcb);
 415         /*
 416          * We use the write lock here, only since in the error leg we need
 417          * it. If we used RLOCK, then we would have to
 418          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 419          * Better to use higher wlock.
 420          */
 421         SCTP_INP_WLOCK(inp);
 422 cred_can_cont:
 423         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 424         if (error) {
 425                 SCTP_INP_WUNLOCK(inp);
 426                 goto out;
 427         }
 428         cru2x(inp->sctp_socket->so_cred, &xuc);
 429         SCTP_INP_WUNLOCK(inp);
 430         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 431 out:
 432         return (error);
 433 }
 434
 435 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 436     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 437
 438
 439 #ifdef INET
 440 static void
 441 sctp_abort(struct socket *so)
 442 {
 443         struct sctp_inpcb *inp;
 444         uint32_t flags;
 445
 446         inp = (struct sctp_inpcb *)so->so_pcb;
 447         if (inp == NULL) {
 448                 return;
 449         }
 450 sctp_must_try_again:
 451         flags = inp->sctp_flags;
 452 #ifdef SCTP_LOG_CLOSING
 453         sctp_log_closing(inp, NULL, 17);
 454 #endif
 455         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 456             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 457 #ifdef SCTP_LOG_CLOSING
 458                 sctp_log_closing(inp, NULL, 16);
 459 #endif
 460                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 461                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 462                 SOCK_LOCK(so);
 463                 SCTP_SB_CLEAR(so->so_snd);
 464                 /*
 465                  * same for the rcv ones, they are only here for the
 466                  * accounting/select.
 467                  */
 468                 SCTP_SB_CLEAR(so->so_rcv);
 469
 470                 /* Now null out the reference, we are completely detached. */
 471                 so->so_pcb = NULL;
 472                 SOCK_UNLOCK(so);
 473         } else {
 474                 flags = inp->sctp_flags;
 475                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 476                         goto sctp_must_try_again;
 477                 }
 478         }
 479         return;
 480 }
 481
 482 static int
 483 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 484 {
 485         struct sctp_inpcb *inp;
 486         struct inpcb *ip_inp;
 487         int error;
 488         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 489
 490 #ifdef IPSEC
 491         uint32_t flags;
 492
 493 #endif
 494
 495         inp = (struct sctp_inpcb *)so->so_pcb;
 496         if (inp != 0) {
 497                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 498                 return (EINVAL);
 499         }
 500         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 501                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 502                 if (error) {
 503                         return (error);
 504                 }
 505         }
 506         error = sctp_inpcb_alloc(so, vrf_id);
 507         if (error) {
 508                 return (error);
 509         }
 510         inp = (struct sctp_inpcb *)so->so_pcb;
 511         SCTP_INP_WLOCK(inp);
 512         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 513         ip_inp = &inp->ip_inp.inp;
 514         ip_inp->inp_vflag |= INP_IPV4;
 515         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 516 #ifdef IPSEC
 517         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 518 #ifdef SCTP_LOG_CLOSING
 519         sctp_log_closing(inp, NULL, 17);
 520 #endif
 521         if (error != 0) {
 522 try_again:
 523                 flags = inp->sctp_flags;
 524                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 525                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 526 #ifdef SCTP_LOG_CLOSING
 527                         sctp_log_closing(inp, NULL, 15);
 528 #endif
 529                         SCTP_INP_WUNLOCK(inp);
 530                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 531                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 532                 } else {
 533                         flags = inp->sctp_flags;
 534                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 535                                 goto try_again;
 536                         } else {
 537                                 SCTP_INP_WUNLOCK(inp);
 538                         }
 539                 }
 540                 return (error);
 541         }
 542 #endif                          /* IPSEC */
 543         SCTP_INP_WUNLOCK(inp);
 544         return (0);
 545 }
 546
 547 static int
 548 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 549 {
 550         struct sctp_inpcb *inp = NULL;
 551         int error;
 552
 553 #ifdef INET
 554         if (addr && addr->sa_family != AF_INET) {
 555                 /* must be a v4 address! */
 556                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 557                 return (EINVAL);
 558         }
 559 #endif                          /* INET6 */
 560         if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
 561                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 562                 return (EINVAL);
 563         }
 564         inp = (struct sctp_inpcb *)so->so_pcb;
 565         if (inp == NULL) {
 566                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 567                 return (EINVAL);
 568         }
 569         error = sctp_inpcb_bind(so, addr, NULL, p);
 570         return (error);
 571 }
 572
 573 #endif
 574 void
 575 sctp_close(struct socket *so)
 576 {
 577         struct sctp_inpcb *inp;
 578         uint32_t flags;
 579
 580         inp = (struct sctp_inpcb *)so->so_pcb;
 581         if (inp == NULL)
 582                 return;
 583
 584         /*
 585          * Inform all the lower layer assoc that we are done.
 586          */
 587 sctp_must_try_again:
 588         flags = inp->sctp_flags;
 589 #ifdef SCTP_LOG_CLOSING
 590         sctp_log_closing(inp, NULL, 17);
 591 #endif
 592         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 593             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 594                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 595                     (so->so_rcv.sb_cc > 0)) {
 596 #ifdef SCTP_LOG_CLOSING
 597                         sctp_log_closing(inp, NULL, 13);
 598 #endif
 599                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 600                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 601                 } else {
 602 #ifdef SCTP_LOG_CLOSING
 603                         sctp_log_closing(inp, NULL, 14);
 604 #endif
 605                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 606                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 607                 }
 608                 /*
 609                  * The socket is now detached, no matter what the state of
 610                  * the SCTP association.
 611                  */
 612                 SOCK_LOCK(so);
 613                 SCTP_SB_CLEAR(so->so_snd);
 614                 /*
 615                  * same for the rcv ones, they are only here for the
 616                  * accounting/select.
 617                  */
 618                 SCTP_SB_CLEAR(so->so_rcv);
 619
 620                 /* Now null out the reference, we are completely detached. */
 621                 so->so_pcb = NULL;
 622                 SOCK_UNLOCK(so);
 623         } else {
 624                 flags = inp->sctp_flags;
 625                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 626                         goto sctp_must_try_again;
 627                 }
 628         }
 629         return;
 630 }
 631
 632
 633 int
 634 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 635     struct mbuf *control, struct thread *p);
 636
 637
 638 int
 639 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 640     struct mbuf *control, struct thread *p)
 641 {
 642         struct sctp_inpcb *inp;
 643         int error;
 644
 645         inp = (struct sctp_inpcb *)so->so_pcb;
 646         if (inp == NULL) {
 647                 if (control) {
 648                         sctp_m_freem(control);
 649                         control = NULL;
 650                 }
 651                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 652                 sctp_m_freem(m);
 653                 return (EINVAL);
 654         }
 655         /* Got to have an to address if we are NOT a connected socket */
 656         if ((addr == NULL) &&
 657             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 658             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 659                 goto connected_type;
 660         } else if (addr == NULL) {
 661                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 662                 error = EDESTADDRREQ;
 663                 sctp_m_freem(m);
 664                 if (control) {
 665                         sctp_m_freem(control);
 666                         control = NULL;
 667                 }
 668                 return (error);
 669         }
 670 #ifdef INET6
 671         if (addr->sa_family != AF_INET) {
 672                 /* must be a v4 address! */
 673                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 674                 sctp_m_freem(m);
 675                 if (control) {
 676                         sctp_m_freem(control);
 677                         control = NULL;
 678                 }
 679                 error = EDESTADDRREQ;
 680                 return (error);
 681         }
 682 #endif                          /* INET6 */
 683 connected_type:
 684         /* now what about control */
 685         if (control) {
 686                 if (inp->control) {
 687                         SCTP_PRINTF("huh? control set?\n");
 688                         sctp_m_freem(inp->control);
 689                         inp->control = NULL;
 690                 }
 691                 inp->control = control;
 692         }
 693         /* Place the data */
 694         if (inp->pkt) {
 695                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 696                 inp->pkt_last = m;
 697         } else {
 698                 inp->pkt_last = inp->pkt = m;
 699         }
 700         if (
 701         /* FreeBSD uses a flag passed */
 702             ((flags & PRUS_MORETOCOME) == 0)
 703             ) {
 704                 /*
 705                  * note with the current version this code will only be used
 706                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 707                  * re-defining sosend to use the sctp_sosend. One can
 708                  * optionally switch back to this code (by changing back the
 709                  * definitions) but this is not advisable. This code is used
 710                  * by FreeBSD when sending a file with sendfile() though.
 711                  */
 712                 int ret;
 713
 714                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 715                 inp->pkt = NULL;
 716                 inp->control = NULL;
 717                 return (ret);
 718         } else {
 719                 return (0);
 720         }
 721 }
 722
 723 int
 724 sctp_disconnect(struct socket *so)
 725 {
 726         struct sctp_inpcb *inp;
 727
 728         inp = (struct sctp_inpcb *)so->so_pcb;
 729         if (inp == NULL) {
 730                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 731                 return (ENOTCONN);
 732         }
 733         SCTP_INP_RLOCK(inp);
 734         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 735             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 736                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 737                         /* No connection */
 738                         SCTP_INP_RUNLOCK(inp);
 739                         return (0);
 740                 } else {
 741                         struct sctp_association *asoc;
 742                         struct sctp_tcb *stcb;
 743
 744                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 745                         if (stcb == NULL) {
 746                                 SCTP_INP_RUNLOCK(inp);
 747                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 748                                 return (EINVAL);
 749                         }
 750                         SCTP_TCB_LOCK(stcb);
 751                         asoc = &stcb->asoc;
 752                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 753                                 /* We are about to be freed, out of here */
 754                                 SCTP_TCB_UNLOCK(stcb);
 755                                 SCTP_INP_RUNLOCK(inp);
 756                                 return (0);
 757                         }
 758                         if (((so->so_options & SO_LINGER) &&
 759                             (so->so_linger == 0)) ||
 760                             (so->so_rcv.sb_cc > 0)) {
 761                                 if (SCTP_GET_STATE(asoc) !=
 762                                     SCTP_STATE_COOKIE_WAIT) {
 763                                         /* Left with Data unread */
 764                                         struct mbuf *err;
 765
 766                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
 767                                         if (err) {
 768                                                 /*
 769                                                  * Fill in the user
 770                                                  * initiated abort
 771                                                  */
 772                                                 struct sctp_paramhdr *ph;
 773
 774                                                 ph = mtod(err, struct sctp_paramhdr *);
 775                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 776                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 777                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 778                                         }
 779                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 780                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 781                                 }
 782                                 SCTP_INP_RUNLOCK(inp);
 783                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 784                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 785                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 786                                 }
 787                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 788                                 /* No unlock tcb assoc is gone */
 789                                 return (0);
 790                         }
 791                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 792                             TAILQ_EMPTY(&asoc->sent_queue) &&
 793                             (asoc->stream_queue_cnt == 0)) {
 794                                 /* there is nothing queued to send, so done */
 795                                 if (asoc->locked_on_sending) {
 796                                         goto abort_anyway;
 797                                 }
 798                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 799                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 800                                         /* only send SHUTDOWN 1st time thru */
 801                                         struct sctp_nets *netp;
 802
 803                                         if (stcb->asoc.alternate) {
 804                                                 netp = stcb->asoc.alternate;
 805                                         } else {
 806                                                 netp = stcb->asoc.primary_destination;
 807                                         }
 808                                         sctp_stop_timers_for_shutdown(stcb);
 809                                         sctp_send_shutdown(stcb, netp);
 810                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 811                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 812                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 813                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 814                                         }
 815                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 816                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 817                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 818                                             stcb->sctp_ep, stcb, netp);
 819                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 820                                             stcb->sctp_ep, stcb, netp);
 821
 822                                 }
 823                         } else {
 824                                 /*
 825                                  * we still got (or just got) data to send,
 826                                  * so set SHUTDOWN_PENDING
 827                                  */
 828                                 /*
 829                                  * XXX sockets draft says that SCTP_EOF
 830                                  * should be sent with no data. currently,
 831                                  * we will allow user data to be sent first
 832                                  * and move to SHUTDOWN-PENDING
 833                                  */
 834                                 struct sctp_nets *netp;
 835
 836                                 if (stcb->asoc.alternate) {
 837                                         netp = stcb->asoc.alternate;
 838                                 } else {
 839                                         netp = stcb->asoc.primary_destination;
 840                                 }
 841
 842                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 843                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 844                                     netp);
 845                                 if (asoc->locked_on_sending) {
 846                                         /* Locked to send out the data */
 847                                         struct sctp_stream_queue_pending *sp;
 848
 849                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 850                                         if (sp == NULL) {
 851                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 852                                                     asoc->locked_on_sending->stream_no);
 853                                         } else {
 854                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 855                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 856                                         }
 857                                 }
 858                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 859                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 860                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 861                                         struct mbuf *op_err;
 862
 863                         abort_anyway:
 864                                         op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
 865                                             0, M_DONTWAIT, 1, MT_DATA);
 866                                         if (op_err) {
 867                                                 /*
 868                                                  * Fill in the user
 869                                                  * initiated abort
 870                                                  */
 871                                                 struct sctp_paramhdr *ph;
 872                                                 uint32_t *ippp;
 873
 874                                                 SCTP_BUF_LEN(op_err) =
 875                                                     (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
 876                                                 ph = mtod(op_err,
 877                                                     struct sctp_paramhdr *);
 878                                                 ph->param_type = htons(
 879                                                     SCTP_CAUSE_USER_INITIATED_ABT);
 880                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
 881                                                 ippp = (uint32_t *) (ph + 1);
 882                                                 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
 883                                         }
 884                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 885                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 886                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 887                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 888                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 889                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 890                                         }
 891                                         SCTP_INP_RUNLOCK(inp);
 892                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 893                                         return (0);
 894                                 } else {
 895                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 896                                 }
 897                         }
 898                         soisdisconnecting(so);
 899                         SCTP_TCB_UNLOCK(stcb);
 900                         SCTP_INP_RUNLOCK(inp);
 901                         return (0);
 902                 }
 903                 /* not reached */
 904         } else {
 905                 /* UDP model does not support this */
 906                 SCTP_INP_RUNLOCK(inp);
 907                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 908                 return (EOPNOTSUPP);
 909         }
 910 }
 911
 912 int
 913 sctp_flush(struct socket *so, int how)
 914 {
 915         /*
 916          * We will just clear out the values and let subsequent close clear
 917          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 918          * they will not be able to read the data, the socket will block
 919          * that from happening.
 920          */
 921         struct sctp_inpcb *inp;
 922
 923         inp = (struct sctp_inpcb *)so->so_pcb;
 924         if (inp == NULL) {
 925                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 926                 return (EINVAL);
 927         }
 928         SCTP_INP_RLOCK(inp);
 929         /* For the 1 to many model this does nothing */
 930         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 931                 SCTP_INP_RUNLOCK(inp);
 932                 return (0);
 933         }
 934         SCTP_INP_RUNLOCK(inp);
 935         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 936                 /*
 937                  * First make sure the sb will be happy, we don't use these
 938                  * except maybe the count
 939                  */
 940                 SCTP_INP_WLOCK(inp);
 941                 SCTP_INP_READ_LOCK(inp);
 942                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 943                 SCTP_INP_READ_UNLOCK(inp);
 944                 SCTP_INP_WUNLOCK(inp);
 945                 so->so_rcv.sb_cc = 0;
 946                 so->so_rcv.sb_mbcnt = 0;
 947                 so->so_rcv.sb_mb = NULL;
 948         }
 949         if ((how == PRU_FLUSH_WR) || (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                 so->so_snd.sb_cc = 0;
 955                 so->so_snd.sb_mbcnt = 0;
 956                 so->so_snd.sb_mb = NULL;
 957
 958         }
 959         return (0);
 960 }
 961
 962 int
 963 sctp_shutdown(struct socket *so)
 964 {
 965         struct sctp_inpcb *inp;
 966
 967         inp = (struct sctp_inpcb *)so->so_pcb;
 968         if (inp == NULL) {
 969                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 970                 return (EINVAL);
 971         }
 972         SCTP_INP_RLOCK(inp);
 973         /* For UDP model this is a invalid call */
 974         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 975                 /* Restore the flags that the soshutdown took away. */
 976                 SOCKBUF_LOCK(&so->so_rcv);
 977                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 978                 SOCKBUF_UNLOCK(&so->so_rcv);
 979                 /* This proc will wakeup for read and do nothing (I hope) */
 980                 SCTP_INP_RUNLOCK(inp);
 981                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 982                 return (EOPNOTSUPP);
 983         }
 984         /*
 985          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 986          * or SHUT_RDWR. This means we put the shutdown flag against it.
 987          */
 988         {
 989                 struct sctp_tcb *stcb;
 990                 struct sctp_association *asoc;
 991
 992                 if ((so->so_state &
 993                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 994                         SCTP_INP_RUNLOCK(inp);
 995                         return (ENOTCONN);
 996                 }
 997                 socantsendmore(so);
 998
 999                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1000                 if (stcb == NULL) {
1001                         /*
1002                          * Ok we hit the case that the shutdown call was
1003                          * made after an abort or something. Nothing to do
1004                          * now.
1005                          */
1006                         SCTP_INP_RUNLOCK(inp);
1007                         return (0);
1008                 }
1009                 SCTP_TCB_LOCK(stcb);
1010                 asoc = &stcb->asoc;
1011                 if (TAILQ_EMPTY(&asoc->send_queue) &&
1012                     TAILQ_EMPTY(&asoc->sent_queue) &&
1013                     (asoc->stream_queue_cnt == 0)) {
1014                         if (asoc->locked_on_sending) {
1015                                 goto abort_anyway;
1016                         }
1017                         /* there is nothing queued to send, so I'm done... */
1018                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1019                                 /* only send SHUTDOWN the first time through */
1020                                 struct sctp_nets *netp;
1021
1022                                 if (stcb->asoc.alternate) {
1023                                         netp = stcb->asoc.alternate;
1024                                 } else {
1025                                         netp = stcb->asoc.primary_destination;
1026                                 }
1027                                 sctp_stop_timers_for_shutdown(stcb);
1028                                 sctp_send_shutdown(stcb, netp);
1029                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1030                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1031                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1032                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1033                                 }
1034                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1035                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1036                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1037                                     stcb->sctp_ep, stcb, netp);
1038                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1039                                     stcb->sctp_ep, stcb, netp);
1040                         }
1041                 } else {
1042                         /*
1043                          * we still got (or just got) data to send, so set
1044                          * SHUTDOWN_PENDING
1045                          */
1046                         struct sctp_nets *netp;
1047
1048                         if (stcb->asoc.alternate) {
1049                                 netp = stcb->asoc.alternate;
1050                         } else {
1051                                 netp = stcb->asoc.primary_destination;
1052                         }
1053
1054                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1055                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1056                             netp);
1057
1058                         if (asoc->locked_on_sending) {
1059                                 /* Locked to send out the data */
1060                                 struct sctp_stream_queue_pending *sp;
1061
1062                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1063                                 if (sp == NULL) {
1064                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1065                                             asoc->locked_on_sending->stream_no);
1066                                 } else {
1067                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1068                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1069                                         }
1070                                 }
1071                         }
1072                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1073                             TAILQ_EMPTY(&asoc->sent_queue) &&
1074                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1075                                 struct mbuf *op_err;
1076
1077                 abort_anyway:
1078                                 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1079                                     0, M_DONTWAIT, 1, MT_DATA);
1080                                 if (op_err) {
1081                                         /* Fill in the user initiated abort */
1082                                         struct sctp_paramhdr *ph;
1083                                         uint32_t *ippp;
1084
1085                                         SCTP_BUF_LEN(op_err) =
1086                                             sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1087                                         ph = mtod(op_err,
1088                                             struct sctp_paramhdr *);
1089                                         ph->param_type = htons(
1090                                             SCTP_CAUSE_USER_INITIATED_ABT);
1091                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
1092                                         ippp = (uint32_t *) (ph + 1);
1093                                         *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1094                                 }
1095                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1096                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1097                                     op_err, SCTP_SO_LOCKED);
1098                                 goto skip_unlock;
1099                         } else {
1100                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1101                         }
1102                 }
1103                 SCTP_TCB_UNLOCK(stcb);
1104         }
1105 skip_unlock:
1106         SCTP_INP_RUNLOCK(inp);
1107         return (0);
1108 }
1109
1110 /*
1111  * copies a "user" presentable address and removes embedded scope, etc.
1112  * returns 0 on success, 1 on error
1113  */
1114 static uint32_t
1115 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1116 {
1117 #ifdef INET6
1118         struct sockaddr_in6 lsa6;
1119
1120         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1121             &lsa6);
1122 #endif
1123         memcpy(ss, sa, sa->sa_len);
1124         return (0);
1125 }
1126
1127
1128
1129 /*
1130  * NOTE: assumes addr lock is held
1131  */
1132 static size_t
1133 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1134     struct sctp_tcb *stcb,
1135     size_t limit,
1136     struct sockaddr_storage *sas,
1137     uint32_t vrf_id)
1138 {
1139         struct sctp_ifn *sctp_ifn;
1140         struct sctp_ifa *sctp_ifa;
1141         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1142         size_t actual;
1143         int ipv4_addr_legal, ipv6_addr_legal;
1144         struct sctp_vrf *vrf;
1145
1146         actual = 0;
1147         if (limit <= 0)
1148                 return (actual);
1149
1150         if (stcb) {
1151                 /* Turn on all the appropriate scope */
1152                 loopback_scope = stcb->asoc.loopback_scope;
1153                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1154                 local_scope = stcb->asoc.local_scope;
1155                 site_scope = stcb->asoc.site_scope;
1156         } else {
1157                 /* Turn on ALL scope, since we look at the EP */
1158                 loopback_scope = ipv4_local_scope = local_scope =
1159                     site_scope = 1;
1160         }
1161         ipv4_addr_legal = ipv6_addr_legal = 0;
1162         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1163                 ipv6_addr_legal = 1;
1164                 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1165                         ipv4_addr_legal = 1;
1166                 }
1167         } else {
1168                 ipv4_addr_legal = 1;
1169         }
1170         vrf = sctp_find_vrf(vrf_id);
1171         if (vrf == NULL) {
1172                 return (0);
1173         }
1174         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1175                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1176                         if ((loopback_scope == 0) &&
1177                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1178                                 /* Skip loopback if loopback_scope not set */
1179                                 continue;
1180                         }
1181                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1182                                 if (stcb) {
1183                                         /*
1184                                          * For the BOUND-ALL case, the list
1185                                          * associated with a TCB is Always
1186                                          * considered a reverse list.. i.e.
1187                                          * it lists addresses that are NOT
1188                                          * part of the association. If this
1189                                          * is one of those we must skip it.
1190                                          */
1191                                         if (sctp_is_addr_restricted(stcb,
1192                                             sctp_ifa)) {
1193                                                 continue;
1194                                         }
1195                                 }
1196                                 switch (sctp_ifa->address.sa.sa_family) {
1197 #ifdef INET
1198                                 case AF_INET:
1199                                         if (ipv4_addr_legal) {
1200                                                 struct sockaddr_in *sin;
1201
1202                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1203                                                 if (sin->sin_addr.s_addr == 0) {
1204                                                         /*
1205                                                          * we skip
1206                                                          * unspecifed
1207                                                          * addresses
1208                                                          */
1209                                                         continue;
1210                                                 }
1211                                                 if ((ipv4_local_scope == 0) &&
1212                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1213                                                         continue;
1214                                                 }
1215 #ifdef INET6
1216                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1217                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1218                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1219                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1220                                                         actual += sizeof(struct sockaddr_in6);
1221                                                 } else {
1222 #endif
1223                                                         memcpy(sas, sin, sizeof(*sin));
1224                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1225                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1226                                                         actual += sizeof(*sin);
1227 #ifdef INET6
1228                                                 }
1229 #endif
1230                                                 if (actual >= limit) {
1231                                                         return (actual);
1232                                                 }
1233                                         } else {
1234                                                 continue;
1235                                         }
1236                                         break;
1237 #endif
1238 #ifdef INET6
1239                                 case AF_INET6:
1240                                         if (ipv6_addr_legal) {
1241                                                 struct sockaddr_in6 *sin6;
1242
1243                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1244                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1245                                                         /*
1246                                                          * we skip
1247                                                          * unspecifed
1248                                                          * addresses
1249                                                          */
1250                                                         continue;
1251                                                 }
1252                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1253                                                         if (local_scope == 0)
1254                                                                 continue;
1255                                                         if (sin6->sin6_scope_id == 0) {
1256                                                                 if (sa6_recoverscope(sin6) != 0)
1257                                                                         /*
1258                                                                          *
1259                                                                          * bad
1260                                                                          *
1261                                                                          * li
1262                                                                          * nk
1263                                                                          *
1264                                                                          * loc
1265                                                                          * al
1266                                                                          *
1267                                                                          * add
1268                                                                          * re
1269                                                                          * ss
1270                                                                          * */
1271                                                                         continue;
1272                                                         }
1273                                                 }
1274                                                 if ((site_scope == 0) &&
1275                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1276                                                         continue;
1277                                                 }
1278                                                 memcpy(sas, sin6, sizeof(*sin6));
1279                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1280                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1281                                                 actual += sizeof(*sin6);
1282                                                 if (actual >= limit) {
1283                                                         return (actual);
1284                                                 }
1285                                         } else {
1286                                                 continue;
1287                                         }
1288                                         break;
1289 #endif
1290                                 default:
1291                                         /* TSNH */
1292                                         break;
1293                                 }
1294                         }
1295                 }
1296         } else {
1297                 struct sctp_laddr *laddr;
1298
1299                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1300                         if (stcb) {
1301                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1302                                         continue;
1303                                 }
1304                         }
1305                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1306                                 continue;
1307
1308                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1309                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1310                             laddr->ifa->address.sa.sa_len);
1311                         actual += laddr->ifa->address.sa.sa_len;
1312                         if (actual >= limit) {
1313                                 return (actual);
1314                         }
1315                 }
1316         }
1317         return (actual);
1318 }
1319
1320 static size_t
1321 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1322     struct sctp_tcb *stcb,
1323     size_t limit,
1324     struct sockaddr_storage *sas)
1325 {
1326         size_t size = 0;
1327
1328         SCTP_IPI_ADDR_RLOCK();
1329         /* fill up addresses for the endpoint's default vrf */
1330         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1331             inp->def_vrf_id);
1332         SCTP_IPI_ADDR_RUNLOCK();
1333         return (size);
1334 }
1335
1336 /*
1337  * NOTE: assumes addr lock is held
1338  */
1339 static int
1340 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1341 {
1342         int cnt = 0;
1343         struct sctp_vrf *vrf = NULL;
1344
1345         /*
1346          * In both sub-set bound an bound_all cases we return the MAXIMUM
1347          * number of addresses that you COULD get. In reality the sub-set
1348          * bound may have an exclusion list for a given TCB OR in the
1349          * bound-all case a TCB may NOT include the loopback or other
1350          * addresses as well.
1351          */
1352         vrf = sctp_find_vrf(vrf_id);
1353         if (vrf == NULL) {
1354                 return (0);
1355         }
1356         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1357                 struct sctp_ifn *sctp_ifn;
1358                 struct sctp_ifa *sctp_ifa;
1359
1360                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1361                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1362                                 /* Count them if they are the right type */
1363                                 switch (sctp_ifa->address.sa.sa_family) {
1364 #ifdef INET
1365                                 case AF_INET:
1366                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1367                                                 cnt += sizeof(struct sockaddr_in6);
1368                                         else
1369                                                 cnt += sizeof(struct sockaddr_in);
1370                                         break;
1371 #endif
1372 #ifdef INET6
1373                                 case AF_INET6:
1374                                         cnt += sizeof(struct sockaddr_in6);
1375                                         break;
1376 #endif
1377                                 default:
1378                                         break;
1379                                 }
1380                         }
1381                 }
1382         } else {
1383                 struct sctp_laddr *laddr;
1384
1385                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1386                         switch (laddr->ifa->address.sa.sa_family) {
1387 #ifdef INET
1388                         case AF_INET:
1389                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1390                                         cnt += sizeof(struct sockaddr_in6);
1391                                 else
1392                                         cnt += sizeof(struct sockaddr_in);
1393                                 break;
1394 #endif
1395 #ifdef INET6
1396                         case AF_INET6:
1397                                 cnt += sizeof(struct sockaddr_in6);
1398                                 break;
1399 #endif
1400                         default:
1401                                 break;
1402                         }
1403                 }
1404         }
1405         return (cnt);
1406 }
1407
1408 static int
1409 sctp_count_max_addresses(struct sctp_inpcb *inp)
1410 {
1411         int cnt = 0;
1412
1413         SCTP_IPI_ADDR_RLOCK();
1414         /* count addresses for the endpoint's default VRF */
1415         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1416         SCTP_IPI_ADDR_RUNLOCK();
1417         return (cnt);
1418 }
1419
1420 static int
1421 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1422     size_t optsize, void *p, int delay)
1423 {
1424         int error = 0;
1425         int creat_lock_on = 0;
1426         struct sctp_tcb *stcb = NULL;
1427         struct sockaddr *sa;
1428         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1429         uint32_t vrf_id;
1430         int bad_addresses = 0;
1431         sctp_assoc_t *a_id;
1432
1433         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1434
1435         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1436             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1437                 /* We are already connected AND the TCP model */
1438                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1439                 return (EADDRINUSE);
1440         }
1441         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1442             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1443                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1444                 return (EINVAL);
1445         }
1446         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1447                 SCTP_INP_RLOCK(inp);
1448                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1449                 SCTP_INP_RUNLOCK(inp);
1450         }
1451         if (stcb) {
1452                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1453                 return (EALREADY);
1454         }
1455         SCTP_INP_INCR_REF(inp);
1456         SCTP_ASOC_CREATE_LOCK(inp);
1457         creat_lock_on = 1;
1458         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1459             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1460                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1461                 error = EFAULT;
1462                 goto out_now;
1463         }
1464         totaddrp = (int *)optval;
1465         totaddr = *totaddrp;
1466         sa = (struct sockaddr *)(totaddrp + 1);
1467         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1468         if ((stcb != NULL) || bad_addresses) {
1469                 /* Already have or am bring up an association */
1470                 SCTP_ASOC_CREATE_UNLOCK(inp);
1471                 creat_lock_on = 0;
1472                 if (stcb)
1473                         SCTP_TCB_UNLOCK(stcb);
1474                 if (bad_addresses == 0) {
1475                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1476                         error = EALREADY;
1477                 }
1478                 goto out_now;
1479         }
1480 #ifdef INET6
1481         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1482             (num_v6 > 0)) {
1483                 error = EINVAL;
1484                 goto out_now;
1485         }
1486         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1487             (num_v4 > 0)) {
1488                 struct in6pcb *inp6;
1489
1490                 inp6 = (struct in6pcb *)inp;
1491                 if (SCTP_IPV6_V6ONLY(inp6)) {
1492                         /*
1493                          * if IPV6_V6ONLY flag, ignore connections destined
1494                          * to a v4 addr or v4-mapped addr
1495                          */
1496                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1497                         error = EINVAL;
1498                         goto out_now;
1499                 }
1500         }
1501 #endif                          /* INET6 */
1502         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1503             SCTP_PCB_FLAGS_UNBOUND) {
1504                 /* Bind a ephemeral port */
1505                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1506                 if (error) {
1507                         goto out_now;
1508                 }
1509         }
1510         /* FIX ME: do we want to pass in a vrf on the connect call? */
1511         vrf_id = inp->def_vrf_id;
1512
1513
1514         /* We are GOOD to go */
1515         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1516             (struct thread *)p
1517             );
1518         if (stcb == NULL) {
1519                 /* Gak! no memory */
1520                 goto out_now;
1521         }
1522         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1523                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1524                 /* Set the connected flag so we can queue data */
1525                 soisconnecting(so);
1526         }
1527         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1528         /* move to second address */
1529         switch (sa->sa_family) {
1530 #ifdef INET
1531         case AF_INET:
1532                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1533                 break;
1534 #endif
1535 #ifdef INET6
1536         case AF_INET6:
1537                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1538                 break;
1539 #endif
1540         default:
1541                 break;
1542         }
1543
1544         error = 0;
1545         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1546         /* Fill in the return id */
1547         if (error) {
1548                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1549                 goto out_now;
1550         }
1551         a_id = (sctp_assoc_t *) optval;
1552         *a_id = sctp_get_associd(stcb);
1553
1554         /* initialize authentication parameters for the assoc */
1555         sctp_initialize_auth_params(inp, stcb);
1556
1557         if (delay) {
1558                 /* doing delayed connection */
1559                 stcb->asoc.delayed_connection = 1;
1560                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1561         } else {
1562                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1563                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1564         }
1565         SCTP_TCB_UNLOCK(stcb);
1566         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1567                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1568                 /* Set the connected flag so we can queue data */
1569                 soisconnecting(so);
1570         }
1571 out_now:
1572         if (creat_lock_on) {
1573                 SCTP_ASOC_CREATE_UNLOCK(inp);
1574         }
1575         SCTP_INP_DECR_REF(inp);
1576         return (error);
1577 }
1578
1579 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1580         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1581             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1582                 SCTP_INP_RLOCK(inp); \
1583                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1584                 if (stcb) { \
1585                         SCTP_TCB_LOCK(stcb); \
1586                 } \
1587                 SCTP_INP_RUNLOCK(inp); \
1588         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1589                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1590                 if (stcb == NULL) { \
1591                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1592                         error = ENOENT; \
1593                         break; \
1594                 } \
1595         } else { \
1596                 stcb = NULL; \
1597         } \
1598   }
1599
1600
1601 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1602         if (size < sizeof(type)) { \
1603                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1604                 error = EINVAL; \
1605                 break; \
1606         } else { \
1607                 destp = (type *)srcp; \
1608         } \
1609       }
1610
1611 static int
1612 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1613     void *p)
1614 {
1615         struct sctp_inpcb *inp = NULL;
1616         int error, val = 0;
1617         struct sctp_tcb *stcb = NULL;
1618
1619         if (optval == NULL) {
1620                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1621                 return (EINVAL);
1622         }
1623         inp = (struct sctp_inpcb *)so->so_pcb;
1624         if (inp == NULL) {
1625                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1626                 return EINVAL;
1627         }
1628         error = 0;
1629
1630         switch (optname) {
1631         case SCTP_NODELAY:
1632         case SCTP_AUTOCLOSE:
1633         case SCTP_EXPLICIT_EOR:
1634         case SCTP_AUTO_ASCONF:
1635         case SCTP_DISABLE_FRAGMENTS:
1636         case SCTP_I_WANT_MAPPED_V4_ADDR:
1637         case SCTP_USE_EXT_RCVINFO:
1638                 SCTP_INP_RLOCK(inp);
1639                 switch (optname) {
1640                 case SCTP_DISABLE_FRAGMENTS:
1641                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1642                         break;
1643                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1644                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1645                         break;
1646                 case SCTP_AUTO_ASCONF:
1647                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1648                                 /* only valid for bound all sockets */
1649                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1650                         } else {
1651                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1652                                 error = EINVAL;
1653                                 goto flags_out;
1654                         }
1655                         break;
1656                 case SCTP_EXPLICIT_EOR:
1657                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1658                         break;
1659                 case SCTP_NODELAY:
1660                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1661                         break;
1662                 case SCTP_USE_EXT_RCVINFO:
1663                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1664                         break;
1665                 case SCTP_AUTOCLOSE:
1666                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1667                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1668                         else
1669                                 val = 0;
1670                         break;
1671
1672                 default:
1673                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1674                         error = ENOPROTOOPT;
1675                 }               /* end switch (sopt->sopt_name) */
1676                 if (*optsize < sizeof(val)) {
1677                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1678                         error = EINVAL;
1679                 }
1680 flags_out:
1681                 SCTP_INP_RUNLOCK(inp);
1682                 if (error == 0) {
1683                         /* return the option value */
1684                         *(int *)optval = val;
1685                         *optsize = sizeof(val);
1686                 }
1687                 break;
1688         case SCTP_GET_PACKET_LOG:
1689                 {
1690 #ifdef  SCTP_PACKET_LOGGING
1691                         uint8_t *target;
1692                         int ret;
1693
1694                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1695                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1696                         *optsize = ret;
1697 #else
1698                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1699                         error = EOPNOTSUPP;
1700 #endif
1701                         break;
1702                 }
1703         case SCTP_REUSE_PORT:
1704                 {
1705                         uint32_t *value;
1706
1707                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1708                                 /* Can't do this for a 1-m socket */
1709                                 error = EINVAL;
1710                                 break;
1711                         }
1712                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1713                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1714                         *optsize = sizeof(uint32_t);
1715                         break;
1716                 }
1717         case SCTP_PARTIAL_DELIVERY_POINT:
1718                 {
1719                         uint32_t *value;
1720
1721                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1722                         *value = inp->partial_delivery_point;
1723                         *optsize = sizeof(uint32_t);
1724                         break;
1725                 }
1726         case SCTP_FRAGMENT_INTERLEAVE:
1727                 {
1728                         uint32_t *value;
1729
1730                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1731                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1732                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1733                                         *value = SCTP_FRAG_LEVEL_2;
1734                                 } else {
1735                                         *value = SCTP_FRAG_LEVEL_1;
1736                                 }
1737                         } else {
1738                                 *value = SCTP_FRAG_LEVEL_0;
1739                         }
1740                         *optsize = sizeof(uint32_t);
1741                         break;
1742                 }
1743         case SCTP_CMT_ON_OFF:
1744                 {
1745                         struct sctp_assoc_value *av;
1746
1747                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1748                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1749                         if (stcb) {
1750                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1751                                 SCTP_TCB_UNLOCK(stcb);
1752                         } else {
1753                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1754                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1755                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1756                                         SCTP_INP_RLOCK(inp);
1757                                         av->assoc_value = inp->sctp_cmt_on_off;
1758                                         SCTP_INP_RUNLOCK(inp);
1759                                 } else {
1760                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1761                                         error = EINVAL;
1762                                 }
1763                         }
1764                         if (error == 0) {
1765                                 *optsize = sizeof(struct sctp_assoc_value);
1766                         }
1767                         break;
1768                 }
1769         case SCTP_PLUGGABLE_CC:
1770                 {
1771                         struct sctp_assoc_value *av;
1772
1773                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1774                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1775                         if (stcb) {
1776                                 av->assoc_value = stcb->asoc.congestion_control_module;
1777                                 SCTP_TCB_UNLOCK(stcb);
1778                         } else {
1779                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1780                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1781                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1782                                         SCTP_INP_RLOCK(inp);
1783                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1784                                         SCTP_INP_RUNLOCK(inp);
1785                                 } else {
1786                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1787                                         error = EINVAL;
1788                                 }
1789                         }
1790                         if (error == 0) {
1791                                 *optsize = sizeof(struct sctp_assoc_value);
1792                         }
1793                         break;
1794                 }
1795         case SCTP_CC_OPTION:
1796                 {
1797                         struct sctp_cc_option *cc_opt;
1798
1799                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1800                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1801                         if (stcb == NULL) {
1802                                 error = EINVAL;
1803                         } else {
1804                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1805                                         error = ENOTSUP;
1806                                 } else {
1807                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1808                                         *optsize = sizeof(struct sctp_cc_option);
1809                                 }
1810                                 SCTP_TCB_UNLOCK(stcb);
1811                         }
1812                         break;
1813                 }
1814         case SCTP_PLUGGABLE_SS:
1815                 {
1816                         struct sctp_assoc_value *av;
1817
1818                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1819                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1820                         if (stcb) {
1821                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1822                                 SCTP_TCB_UNLOCK(stcb);
1823                         } else {
1824                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1825                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1826                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1827                                         SCTP_INP_RLOCK(inp);
1828                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1829                                         SCTP_INP_RUNLOCK(inp);
1830                                 } else {
1831                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1832                                         error = EINVAL;
1833                                 }
1834                         }
1835                         if (error == 0) {
1836                                 *optsize = sizeof(struct sctp_assoc_value);
1837                         }
1838                         break;
1839                 }
1840         case SCTP_SS_VALUE:
1841                 {
1842                         struct sctp_stream_value *av;
1843
1844                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1845                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1846                         if (stcb) {
1847                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1848                                     &av->stream_value) < 0) {
1849                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1850                                         error = EINVAL;
1851                                 } else {
1852                                         *optsize = sizeof(struct sctp_stream_value);
1853                                 }
1854                                 SCTP_TCB_UNLOCK(stcb);
1855                         } else {
1856                                 /*
1857                                  * Can't get stream value without
1858                                  * association
1859                                  */
1860                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1861                                 error = EINVAL;
1862                         }
1863                         break;
1864                 }
1865         case SCTP_GET_ADDR_LEN:
1866                 {
1867                         struct sctp_assoc_value *av;
1868
1869                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1870                         error = EINVAL;
1871 #ifdef INET
1872                         if (av->assoc_value == AF_INET) {
1873                                 av->assoc_value = sizeof(struct sockaddr_in);
1874                                 error = 0;
1875                         }
1876 #endif
1877 #ifdef INET6
1878                         if (av->assoc_value == AF_INET6) {
1879                                 av->assoc_value = sizeof(struct sockaddr_in6);
1880                                 error = 0;
1881                         }
1882 #endif
1883                         if (error) {
1884                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1885                         } else {
1886                                 *optsize = sizeof(struct sctp_assoc_value);
1887                         }
1888                         break;
1889                 }
1890         case SCTP_GET_ASSOC_NUMBER:
1891                 {
1892                         uint32_t *value, cnt;
1893
1894                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1895                         cnt = 0;
1896                         SCTP_INP_RLOCK(inp);
1897                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1898                                 cnt++;
1899                         }
1900                         SCTP_INP_RUNLOCK(inp);
1901                         *value = cnt;
1902                         *optsize = sizeof(uint32_t);
1903                         break;
1904                 }
1905         case SCTP_GET_ASSOC_ID_LIST:
1906                 {
1907                         struct sctp_assoc_ids *ids;
1908                         unsigned int at, limit;
1909
1910                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1911                         at = 0;
1912                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1913                         SCTP_INP_RLOCK(inp);
1914                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1915                                 if (at < limit) {
1916                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1917                                 } else {
1918                                         error = EINVAL;
1919                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1920                                         break;
1921                                 }
1922                         }
1923                         SCTP_INP_RUNLOCK(inp);
1924                         if (error == 0) {
1925                                 ids->gaids_number_of_ids = at;
1926                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1927                         }
1928                         break;
1929                 }
1930         case SCTP_CONTEXT:
1931                 {
1932                         struct sctp_assoc_value *av;
1933
1934                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1935                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1936
1937                         if (stcb) {
1938                                 av->assoc_value = stcb->asoc.context;
1939                                 SCTP_TCB_UNLOCK(stcb);
1940                         } else {
1941                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1942                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1943                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1944                                         SCTP_INP_RLOCK(inp);
1945                                         av->assoc_value = inp->sctp_context;
1946                                         SCTP_INP_RUNLOCK(inp);
1947                                 } else {
1948                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1949                                         error = EINVAL;
1950                                 }
1951                         }
1952                         if (error == 0) {
1953                                 *optsize = sizeof(struct sctp_assoc_value);
1954                         }
1955                         break;
1956                 }
1957         case SCTP_VRF_ID:
1958                 {
1959                         uint32_t *default_vrfid;
1960
1961                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1962                         *default_vrfid = inp->def_vrf_id;
1963                         *optsize = sizeof(uint32_t);
1964                         break;
1965                 }
1966         case SCTP_GET_ASOC_VRF:
1967                 {
1968                         struct sctp_assoc_value *id;
1969
1970                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1971                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1972                         if (stcb == NULL) {
1973                                 error = EINVAL;
1974                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1975                         } else {
1976                                 id->assoc_value = stcb->asoc.vrf_id;
1977                                 *optsize = sizeof(struct sctp_assoc_value);
1978                         }
1979                         break;
1980                 }
1981         case SCTP_GET_VRF_IDS:
1982                 {
1983                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1984                         error = EOPNOTSUPP;
1985                         break;
1986                 }
1987         case SCTP_GET_NONCE_VALUES:
1988                 {
1989                         struct sctp_get_nonce_values *gnv;
1990
1991                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1992                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1993
1994                         if (stcb) {
1995                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1996                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1997                                 SCTP_TCB_UNLOCK(stcb);
1998                                 *optsize = sizeof(struct sctp_get_nonce_values);
1999                         } else {
2000                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2001                                 error = ENOTCONN;
2002                         }
2003                         break;
2004                 }
2005         case SCTP_DELAYED_SACK:
2006                 {
2007                         struct sctp_sack_info *sack;
2008
2009                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2010                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2011                         if (stcb) {
2012                                 sack->sack_delay = stcb->asoc.delayed_ack;
2013                                 sack->sack_freq = stcb->asoc.sack_freq;
2014                                 SCTP_TCB_UNLOCK(stcb);
2015                         } else {
2016                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2017                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2018                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2019                                         SCTP_INP_RLOCK(inp);
2020                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2021                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2022                                         SCTP_INP_RUNLOCK(inp);
2023                                 } else {
2024                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2025                                         error = EINVAL;
2026                                 }
2027                         }
2028                         if (error == 0) {
2029                                 *optsize = sizeof(struct sctp_sack_info);
2030                         }
2031                         break;
2032                 }
2033         case SCTP_GET_SNDBUF_USE:
2034                 {
2035                         struct sctp_sockstat *ss;
2036
2037                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2038                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2039
2040                         if (stcb) {
2041                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2042                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2043                                     stcb->asoc.size_on_all_streams);
2044                                 SCTP_TCB_UNLOCK(stcb);
2045                                 *optsize = sizeof(struct sctp_sockstat);
2046                         } else {
2047                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2048                                 error = ENOTCONN;
2049                         }
2050                         break;
2051                 }
2052         case SCTP_MAX_BURST:
2053                 {
2054                         struct sctp_assoc_value *av;
2055
2056                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2057                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2058
2059                         if (stcb) {
2060                                 av->assoc_value = stcb->asoc.max_burst;
2061                                 SCTP_TCB_UNLOCK(stcb);
2062                         } else {
2063                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2064                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2065                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2066                                         SCTP_INP_RLOCK(inp);
2067                                         av->assoc_value = inp->sctp_ep.max_burst;
2068                                         SCTP_INP_RUNLOCK(inp);
2069                                 } else {
2070                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2071                                         error = EINVAL;
2072                                 }
2073                         }
2074                         if (error == 0) {
2075                                 *optsize = sizeof(struct sctp_assoc_value);
2076                         }
2077                         break;
2078                 }
2079         case SCTP_MAXSEG:
2080                 {
2081                         struct sctp_assoc_value *av;
2082                         int ovh;
2083
2084                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2085                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2086
2087                         if (stcb) {
2088                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2089                                 SCTP_TCB_UNLOCK(stcb);
2090                         } else {
2091                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2092                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2093                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2094                                         SCTP_INP_RLOCK(inp);
2095                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2096                                                 ovh = SCTP_MED_OVERHEAD;
2097                                         } else {
2098                                                 ovh = SCTP_MED_V4_OVERHEAD;
2099                                         }
2100                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2101                                                 av->assoc_value = 0;
2102                                         else
2103                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2104                                         SCTP_INP_RUNLOCK(inp);
2105                                 } else {
2106                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2107                                         error = EINVAL;
2108                                 }
2109                         }
2110                         if (error == 0) {
2111                                 *optsize = sizeof(struct sctp_assoc_value);
2112                         }
2113                         break;
2114                 }
2115         case SCTP_GET_STAT_LOG:
2116                 error = sctp_fill_stat_log(optval, optsize);
2117                 break;
2118         case SCTP_EVENTS:
2119                 {
2120                         struct sctp_event_subscribe *events;
2121
2122                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2123                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2124                         SCTP_INP_RLOCK(inp);
2125                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2126                                 events->sctp_data_io_event = 1;
2127
2128                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2129                                 events->sctp_association_event = 1;
2130
2131                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2132                                 events->sctp_address_event = 1;
2133
2134                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2135                                 events->sctp_send_failure_event = 1;
2136
2137                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2138                                 events->sctp_peer_error_event = 1;
2139
2140                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2141                                 events->sctp_shutdown_event = 1;
2142
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2144                                 events->sctp_partial_delivery_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2147                                 events->sctp_adaptation_layer_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2150                                 events->sctp_authentication_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2153                                 events->sctp_sender_dry_event = 1;
2154
2155                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2156                                 events->sctp_stream_reset_event = 1;
2157                         SCTP_INP_RUNLOCK(inp);
2158                         *optsize = sizeof(struct sctp_event_subscribe);
2159                         break;
2160                 }
2161         case SCTP_ADAPTATION_LAYER:
2162                 {
2163                         uint32_t *value;
2164
2165                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2166
2167                         SCTP_INP_RLOCK(inp);
2168                         *value = inp->sctp_ep.adaptation_layer_indicator;
2169                         SCTP_INP_RUNLOCK(inp);
2170                         *optsize = sizeof(uint32_t);
2171                         break;
2172                 }
2173         case SCTP_SET_INITIAL_DBG_SEQ:
2174                 {
2175                         uint32_t *value;
2176
2177                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2178                         SCTP_INP_RLOCK(inp);
2179                         *value = inp->sctp_ep.initial_sequence_debug;
2180                         SCTP_INP_RUNLOCK(inp);
2181                         *optsize = sizeof(uint32_t);
2182                         break;
2183                 }
2184         case SCTP_GET_LOCAL_ADDR_SIZE:
2185                 {
2186                         uint32_t *value;
2187
2188                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2189                         SCTP_INP_RLOCK(inp);
2190                         *value = sctp_count_max_addresses(inp);
2191                         SCTP_INP_RUNLOCK(inp);
2192                         *optsize = sizeof(uint32_t);
2193                         break;
2194                 }
2195         case SCTP_GET_REMOTE_ADDR_SIZE:
2196                 {
2197                         uint32_t *value;
2198                         size_t size;
2199                         struct sctp_nets *net;
2200
2201                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2202                         /* FIXME MT: change to sctp_assoc_value? */
2203                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2204
2205                         if (stcb) {
2206                                 size = 0;
2207                                 /* Count the sizes */
2208                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2209                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2210                                                 size += sizeof(struct sockaddr_in6);
2211                                         } else {
2212                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2213 #ifdef INET
2214                                                 case AF_INET:
2215                                                         size += sizeof(struct sockaddr_in);
2216                                                         break;
2217 #endif
2218 #ifdef INET6
2219                                                 case AF_INET6:
2220                                                         size += sizeof(struct sockaddr_in6);
2221                                                         break;
2222 #endif
2223                                                 default:
2224                                                         break;
2225                                                 }
2226                                         }
2227                                 }
2228                                 SCTP_TCB_UNLOCK(stcb);
2229                                 *value = (uint32_t) size;
2230                                 *optsize = sizeof(uint32_t);
2231                         } else {
2232                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2233                                 error = ENOTCONN;
2234                         }
2235                         break;
2236                 }
2237         case SCTP_GET_PEER_ADDRESSES:
2238                 /*
2239                  * Get the address information, an array is passed in to
2240                  * fill up we pack it.
2241                  */
2242                 {
2243                         size_t cpsz, left;
2244                         struct sockaddr_storage *sas;
2245                         struct sctp_nets *net;
2246                         struct sctp_getaddresses *saddr;
2247
2248                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2249                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2250
2251                         if (stcb) {
2252                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2253                                 *optsize = sizeof(struct sctp_getaddresses);
2254                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2255
2256                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2257                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2258                                                 cpsz = sizeof(struct sockaddr_in6);
2259                                         } else {
2260                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2261 #ifdef INET
2262                                                 case AF_INET:
2263                                                         cpsz = sizeof(struct sockaddr_in);
2264                                                         break;
2265 #endif
2266 #ifdef INET6
2267                                                 case AF_INET6:
2268                                                         cpsz = sizeof(struct sockaddr_in6);
2269                                                         break;
2270 #endif
2271                                                 default:
2272                                                         cpsz = 0;
2273                                                         break;
2274                                                 }
2275                                         }
2276                                         if (cpsz == 0) {
2277                                                 break;
2278                                         }
2279                                         if (left < cpsz) {
2280                                                 /* not enough room. */
2281                                                 break;
2282                                         }
2283 #if defined(INET) && defined(INET6)
2284                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2285                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2286                                                 /* Must map the address */
2287                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2288                                                     (struct sockaddr_in6 *)sas);
2289                                         } else {
2290 #endif
2291                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2292 #if defined(INET) && defined(INET6)
2293                                         }
2294 #endif
2295                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2296
2297                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2298                                         left -= cpsz;
2299                                         *optsize += cpsz;
2300                                 }
2301                                 SCTP_TCB_UNLOCK(stcb);
2302                         } else {
2303                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2304                                 error = ENOENT;
2305                         }
2306                         break;
2307                 }
2308         case SCTP_GET_LOCAL_ADDRESSES:
2309                 {
2310                         size_t limit, actual;
2311                         struct sockaddr_storage *sas;
2312                         struct sctp_getaddresses *saddr;
2313
2314                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2315                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2316
2317                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2318                         limit = *optsize - sizeof(sctp_assoc_t);
2319                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2320                         if (stcb) {
2321                                 SCTP_TCB_UNLOCK(stcb);
2322                         }
2323                         *optsize = sizeof(struct sockaddr_storage) + actual;
2324                         break;
2325                 }
2326         case SCTP_PEER_ADDR_PARAMS:
2327                 {
2328                         struct sctp_paddrparams *paddrp;
2329                         struct sctp_nets *net;
2330
2331                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2332                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2333
2334                         net = NULL;
2335                         if (stcb) {
2336                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2337                         } else {
2338                                 /*
2339                                  * We increment here since
2340                                  * sctp_findassociation_ep_addr() wil do a
2341                                  * decrement if it finds the stcb as long as
2342                                  * the locked tcb (last argument) is NOT a
2343                                  * TCB.. aka NULL.
2344                                  */
2345                                 SCTP_INP_INCR_REF(inp);
2346                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2347                                 if (stcb == NULL) {
2348                                         SCTP_INP_DECR_REF(inp);
2349                                 }
2350                         }
2351                         if (stcb && (net == NULL)) {
2352                                 struct sockaddr *sa;
2353
2354                                 sa = (struct sockaddr *)&paddrp->spp_address;
2355 #ifdef INET
2356                                 if (sa->sa_family == AF_INET) {
2357                                         struct sockaddr_in *sin;
2358
2359                                         sin = (struct sockaddr_in *)sa;
2360                                         if (sin->sin_addr.s_addr) {
2361                                                 error = EINVAL;
2362                                                 SCTP_TCB_UNLOCK(stcb);
2363                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2364                                                 break;
2365                                         }
2366                                 } else
2367 #endif
2368 #ifdef INET6
2369                                 if (sa->sa_family == AF_INET6) {
2370                                         struct sockaddr_in6 *sin6;
2371
2372                                         sin6 = (struct sockaddr_in6 *)sa;
2373                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2374                                                 error = EINVAL;
2375                                                 SCTP_TCB_UNLOCK(stcb);
2376                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2377                                                 break;
2378                                         }
2379                                 } else
2380 #endif
2381                                 {
2382                                         error = EAFNOSUPPORT;
2383                                         SCTP_TCB_UNLOCK(stcb);
2384                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2385                                         break;
2386                                 }
2387                         }
2388                         if (stcb) {
2389                                 /* Applies to the specific association */
2390                                 paddrp->spp_flags = 0;
2391                                 if (net) {
2392                                         int ovh;
2393
2394                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2395                                                 ovh = SCTP_MED_OVERHEAD;
2396                                         } else {
2397                                                 ovh = SCTP_MED_V4_OVERHEAD;
2398                                         }
2399
2400                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2401                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2402                                         paddrp->spp_pathmtu = net->mtu - ovh;
2403                                         /* get flags for HB */
2404                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2405                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2406                                         } else {
2407                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2408                                         }
2409                                         /* get flags for PMTU */
2410                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2411                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2412                                         } else {
2413                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2414                                         }
2415                                         if (net->dscp & 0x01) {
2416                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2417                                                 paddrp->spp_flags |= SPP_DSCP;
2418                                         }
2419 #ifdef INET6
2420                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2421                                             (net->flowlabel & 0x80000000)) {
2422                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2423                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2424                                         }
2425 #endif
2426                                 } else {
2427                                         /*
2428                                          * No destination so return default
2429                                          * value
2430                                          */
2431                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2432                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2433                                         if (stcb->asoc.default_dscp & 0x01) {
2434                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2435                                                 paddrp->spp_flags |= SPP_DSCP;
2436                                         }
2437 #ifdef INET6
2438                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2439                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2440                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2441                                         }
2442 #endif
2443                                         /* default settings should be these */
2444                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2445                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2446                                         } else {
2447                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2448                                         }
2449                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2450                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2451                                         } else {
2452                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2453                                         }
2454                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2455                                 }
2456                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2457                                 SCTP_TCB_UNLOCK(stcb);
2458                         } else {
2459                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2460                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2461                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2462                                         /* Use endpoint defaults */
2463                                         SCTP_INP_RLOCK(inp);
2464                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2465                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2466                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2467                                         /* get inp's default */
2468                                         if (inp->sctp_ep.default_dscp & 0x01) {
2469                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2470                                                 paddrp->spp_flags |= SPP_DSCP;
2471                                         }
2472 #ifdef INET6
2473                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2474                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2475                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2476                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2477                                         }
2478 #endif
2479                                         /* can't return this */
2480                                         paddrp->spp_pathmtu = 0;
2481
2482                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2483                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2484                                         } else {
2485                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2486                                         }
2487                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2488                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2489                                         } else {
2490                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2491                                         }
2492                                         SCTP_INP_RUNLOCK(inp);
2493                                 } else {
2494                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2495                                         error = EINVAL;
2496                                 }
2497                         }
2498                         if (error == 0) {
2499                                 *optsize = sizeof(struct sctp_paddrparams);
2500                         }
2501                         break;
2502                 }
2503         case SCTP_GET_PEER_ADDR_INFO:
2504                 {
2505                         struct sctp_paddrinfo *paddri;
2506                         struct sctp_nets *net;
2507
2508                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2509                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2510
2511                         net = NULL;
2512                         if (stcb) {
2513                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2514                         } else {
2515                                 /*
2516                                  * We increment here since
2517                                  * sctp_findassociation_ep_addr() wil do a
2518                                  * decrement if it finds the stcb as long as
2519                                  * the locked tcb (last argument) is NOT a
2520                                  * TCB.. aka NULL.
2521                                  */
2522                                 SCTP_INP_INCR_REF(inp);
2523                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2524                                 if (stcb == NULL) {
2525                                         SCTP_INP_DECR_REF(inp);
2526                                 }
2527                         }
2528
2529                         if ((stcb) && (net)) {
2530                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2531                                         /* It's unconfirmed */
2532                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2533                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2534                                         /* It's active */
2535                                         paddri->spinfo_state = SCTP_ACTIVE;
2536                                 } else {
2537                                         /* It's inactive */
2538                                         paddri->spinfo_state = SCTP_INACTIVE;
2539                                 }
2540                                 paddri->spinfo_cwnd = net->cwnd;
2541                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2542                                 paddri->spinfo_rto = net->RTO;
2543                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2544                                 paddri->spinfo_mtu = net->mtu;
2545                                 SCTP_TCB_UNLOCK(stcb);
2546                                 *optsize = sizeof(struct sctp_paddrinfo);
2547                         } else {
2548                                 if (stcb) {
2549                                         SCTP_TCB_UNLOCK(stcb);
2550                                 }
2551                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2552                                 error = ENOENT;
2553                         }
2554                         break;
2555                 }
2556         case SCTP_PCB_STATUS:
2557                 {
2558                         struct sctp_pcbinfo *spcb;
2559
2560                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2561                         sctp_fill_pcbinfo(spcb);
2562                         *optsize = sizeof(struct sctp_pcbinfo);
2563                         break;
2564                 }
2565         case SCTP_STATUS:
2566                 {
2567                         struct sctp_nets *net;
2568                         struct sctp_status *sstat;
2569
2570                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2571                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2572
2573                         if (stcb == NULL) {
2574                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2575                                 error = EINVAL;
2576                                 break;
2577                         }
2578                         /*
2579                          * I think passing the state is fine since
2580                          * sctp_constants.h will be available to the user
2581                          * land.
2582                          */
2583                         sstat->sstat_state = stcb->asoc.state;
2584                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2585                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2586                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2587                         /*
2588                          * We can't include chunks that have been passed to
2589                          * the socket layer. Only things in queue.
2590                          */
2591                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2592                             stcb->asoc.cnt_on_all_streams);
2593
2594
2595                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2596                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2597                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2598                         memcpy(&sstat->sstat_primary.spinfo_address,
2599                             &stcb->asoc.primary_destination->ro._l_addr,
2600                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2601                         net = stcb->asoc.primary_destination;
2602                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2603                         /*
2604                          * Again the user can get info from sctp_constants.h
2605                          * for what the state of the network is.
2606                          */
2607                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2608                                 /* It's unconfirmed */
2609                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2610                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2611                                 /* It's active */
2612                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2613                         } else {
2614                                 /* It's inactive */
2615                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2616                         }
2617                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2618                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2619                         sstat->sstat_primary.spinfo_rto = net->RTO;
2620                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2621                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2622                         SCTP_TCB_UNLOCK(stcb);
2623                         *optsize = sizeof(struct sctp_status);
2624                         break;
2625                 }
2626         case SCTP_RTOINFO:
2627                 {
2628                         struct sctp_rtoinfo *srto;
2629
2630                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2631                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2632
2633                         if (stcb) {
2634                                 srto->srto_initial = stcb->asoc.initial_rto;
2635                                 srto->srto_max = stcb->asoc.maxrto;
2636                                 srto->srto_min = stcb->asoc.minrto;
2637                                 SCTP_TCB_UNLOCK(stcb);
2638                         } else {
2639                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2640                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2641                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2642                                         SCTP_INP_RLOCK(inp);
2643                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2644                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2645                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2646                                         SCTP_INP_RUNLOCK(inp);
2647                                 } else {
2648                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2649                                         error = EINVAL;
2650                                 }
2651                         }
2652                         if (error == 0) {
2653                                 *optsize = sizeof(struct sctp_rtoinfo);
2654                         }
2655                         break;
2656                 }
2657         case SCTP_TIMEOUTS:
2658                 {
2659                         struct sctp_timeouts *stimo;
2660
2661                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2662                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2663
2664                         if (stcb) {
2665                                 stimo->stimo_init = stcb->asoc.timoinit;
2666                                 stimo->stimo_data = stcb->asoc.timodata;
2667                                 stimo->stimo_sack = stcb->asoc.timosack;
2668                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2669                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2670                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2671                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2672                                 SCTP_TCB_UNLOCK(stcb);
2673                                 *optsize = sizeof(struct sctp_timeouts);
2674                         } else {
2675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2676                                 error = EINVAL;
2677                         }
2678                         break;
2679                 }
2680         case SCTP_ASSOCINFO:
2681                 {
2682                         struct sctp_assocparams *sasoc;
2683
2684                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2685                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2686
2687                         if (stcb) {
2688                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2689                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2690                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2691                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2692                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2693                                 SCTP_TCB_UNLOCK(stcb);
2694                         } else {
2695                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2696                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2697                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2698                                         SCTP_INP_RLOCK(inp);
2699                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2700                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2701                                         sasoc->sasoc_number_peer_destinations = 0;
2702                                         sasoc->sasoc_peer_rwnd = 0;
2703                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2704                                         SCTP_INP_RUNLOCK(inp);
2705                                 } else {
2706                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2707                                         error = EINVAL;
2708                                 }
2709                         }
2710                         if (error == 0) {
2711                                 *optsize = sizeof(struct sctp_assocparams);
2712                         }
2713                         break;
2714                 }
2715         case SCTP_DEFAULT_SEND_PARAM:
2716                 {
2717                         struct sctp_sndrcvinfo *s_info;
2718
2719                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2720                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2721
2722                         if (stcb) {
2723                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2724                                 SCTP_TCB_UNLOCK(stcb);
2725                         } else {
2726                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2727                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2728                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2729                                         SCTP_INP_RLOCK(inp);
2730                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2731                                         SCTP_INP_RUNLOCK(inp);
2732                                 } else {
2733                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2734                                         error = EINVAL;
2735                                 }
2736                         }
2737                         if (error == 0) {
2738                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2739                         }
2740                         break;
2741                 }
2742         case SCTP_INITMSG:
2743                 {
2744                         struct sctp_initmsg *sinit;
2745
2746                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2747                         SCTP_INP_RLOCK(inp);
2748                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2749                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2750                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2751                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2752                         SCTP_INP_RUNLOCK(inp);
2753                         *optsize = sizeof(struct sctp_initmsg);
2754                         break;
2755                 }
2756         case SCTP_PRIMARY_ADDR:
2757                 /* we allow a "get" operation on this */
2758                 {
2759                         struct sctp_setprim *ssp;
2760
2761                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2762                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2763
2764                         if (stcb) {
2765                                 /* simply copy out the sockaddr_storage... */
2766                                 int len;
2767
2768                                 len = *optsize;
2769                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2770                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2771
2772                                 memcpy(&ssp->ssp_addr,
2773                                     &stcb->asoc.primary_destination->ro._l_addr,
2774                                     len);
2775                                 SCTP_TCB_UNLOCK(stcb);
2776                                 *optsize = sizeof(struct sctp_setprim);
2777                         } else {
2778                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2779                                 error = EINVAL;
2780                         }
2781                         break;
2782                 }
2783         case SCTP_HMAC_IDENT:
2784                 {
2785                         struct sctp_hmacalgo *shmac;
2786                         sctp_hmaclist_t *hmaclist;
2787                         uint32_t size;
2788                         int i;
2789
2790                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2791
2792                         SCTP_INP_RLOCK(inp);
2793                         hmaclist = inp->sctp_ep.local_hmacs;
2794                         if (hmaclist == NULL) {
2795                                 /* no HMACs to return */
2796                                 *optsize = sizeof(*shmac);
2797                                 SCTP_INP_RUNLOCK(inp);
2798                                 break;
2799                         }
2800                         /* is there room for all of the hmac ids? */
2801                         size = sizeof(*shmac) + (hmaclist->num_algo *
2802                             sizeof(shmac->shmac_idents[0]));
2803                         if ((size_t)(*optsize) < size) {
2804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2805                                 error = EINVAL;
2806                                 SCTP_INP_RUNLOCK(inp);
2807                                 break;
2808                         }
2809                         /* copy in the list */
2810                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2811                         for (i = 0; i < hmaclist->num_algo; i++) {
2812                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2813                         }
2814                         SCTP_INP_RUNLOCK(inp);
2815                         *optsize = size;
2816                         break;
2817                 }
2818         case SCTP_AUTH_ACTIVE_KEY:
2819                 {
2820                         struct sctp_authkeyid *scact;
2821
2822                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2823                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2824
2825                         if (stcb) {
2826                                 /* get the active key on the assoc */
2827                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2828                                 SCTP_TCB_UNLOCK(stcb);
2829                         } else {
2830                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2831                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2832                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2833                                         /* get the endpoint active key */
2834                                         SCTP_INP_RLOCK(inp);
2835                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2836                                         SCTP_INP_RUNLOCK(inp);
2837                                 } else {
2838                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2839                                         error = EINVAL;
2840                                 }
2841                         }
2842                         if (error == 0) {
2843                                 *optsize = sizeof(struct sctp_authkeyid);
2844                         }
2845                         break;
2846                 }
2847         case SCTP_LOCAL_AUTH_CHUNKS:
2848                 {
2849                         struct sctp_authchunks *sac;
2850                         sctp_auth_chklist_t *chklist = NULL;
2851                         size_t size = 0;
2852
2853                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2854                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2855
2856                         if (stcb) {
2857                                 /* get off the assoc */
2858                                 chklist = stcb->asoc.local_auth_chunks;
2859                                 /* is there enough space? */
2860                                 size = sctp_auth_get_chklist_size(chklist);
2861                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2862                                         error = EINVAL;
2863                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2864                                 } else {
2865                                         /* copy in the chunks */
2866                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2867                                         sac->gauth_number_of_chunks = (uint32_t) size;
2868                                         *optsize = sizeof(struct sctp_authchunks) + size;
2869                                 }
2870                                 SCTP_TCB_UNLOCK(stcb);
2871                         } else {
2872                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2873                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2874                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2875                                         /* get off the endpoint */
2876                                         SCTP_INP_RLOCK(inp);
2877                                         chklist = inp->sctp_ep.local_auth_chunks;
2878                                         /* is there enough space? */
2879                                         size = sctp_auth_get_chklist_size(chklist);
2880                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2881                                                 error = EINVAL;
2882                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2883                                         } else {
2884                                                 /* copy in the chunks */
2885                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2886                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2887                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2888                                         }
2889                                         SCTP_INP_RUNLOCK(inp);
2890                                 } else {
2891                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2892                                         error = EINVAL;
2893                                 }
2894                         }
2895                         break;
2896                 }
2897         case SCTP_PEER_AUTH_CHUNKS:
2898                 {
2899                         struct sctp_authchunks *sac;
2900                         sctp_auth_chklist_t *chklist = NULL;
2901                         size_t size = 0;
2902
2903                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2904                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2905
2906                         if (stcb) {
2907                                 /* get off the assoc */
2908                                 chklist = stcb->asoc.peer_auth_chunks;
2909                                 /* is there enough space? */
2910                                 size = sctp_auth_get_chklist_size(chklist);
2911                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2912                                         error = EINVAL;
2913                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2914                                 } else {
2915                                         /* copy in the chunks */
2916                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2917                                         sac->gauth_number_of_chunks = (uint32_t) size;
2918                                         *optsize = sizeof(struct sctp_authchunks) + size;
2919                                 }
2920                                 SCTP_TCB_UNLOCK(stcb);
2921                         } else {
2922                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2923                                 error = ENOENT;
2924                         }
2925                         break;
2926                 }
2927         case SCTP_EVENT:
2928                 {
2929                         struct sctp_event *event;
2930                         uint32_t event_type;
2931
2932                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2933                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2934
2935                         switch (event->se_type) {
2936                         case SCTP_ASSOC_CHANGE:
2937                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2938                                 break;
2939                         case SCTP_PEER_ADDR_CHANGE:
2940                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2941                                 break;
2942                         case SCTP_REMOTE_ERROR:
2943                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2944                                 break;
2945                         case SCTP_SEND_FAILED:
2946                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2947                                 break;
2948                         case SCTP_SHUTDOWN_EVENT:
2949                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2950                                 break;
2951                         case SCTP_ADAPTATION_INDICATION:
2952                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2953                                 break;
2954                         case SCTP_PARTIAL_DELIVERY_EVENT:
2955                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2956                                 break;
2957                         case SCTP_AUTHENTICATION_EVENT:
2958                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2959                                 break;
2960                         case SCTP_STREAM_RESET_EVENT:
2961                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2962                                 break;
2963                         case SCTP_SENDER_DRY_EVENT:
2964                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2965                                 break;
2966                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2967                                 event_type = 0;
2968                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2969                                 error = ENOTSUP;
2970                                 break;
2971                         case SCTP_ASSOC_RESET_EVENT:
2972                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
2973                                 break;
2974                         case SCTP_STREAM_CHANGE_EVENT:
2975                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
2976                                 break;
2977                         case SCTP_SEND_FAILED_EVENT:
2978                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
2979                                 break;
2980                         default:
2981                                 event_type = 0;
2982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2983                                 error = EINVAL;
2984                                 break;
2985                         }
2986                         if (event_type > 0) {
2987                                 if (stcb) {
2988                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
2989                                         SCTP_TCB_UNLOCK(stcb);
2990                                 } else {
2991                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2992                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2993                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
2994                                                 SCTP_INP_RLOCK(inp);
2995                                                 event->se_on = sctp_is_feature_on(inp, event_type);
2996                                                 SCTP_INP_RUNLOCK(inp);
2997                                         } else {
2998                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2999                                                 error = EINVAL;
3000                                         }
3001                                 }
3002                         }
3003                         if (error == 0) {
3004                                 *optsize = sizeof(struct sctp_event);
3005                         }
3006                         break;
3007                 }
3008         case SCTP_RECVRCVINFO:
3009                 {
3010                         int onoff;
3011
3012                         if (*optsize < sizeof(int)) {
3013                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3014                                 error = EINVAL;
3015                         } else {
3016                                 SCTP_INP_RLOCK(inp);
3017                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3018                                 SCTP_INP_RUNLOCK(inp);
3019                         }
3020                         if (error == 0) {
3021                                 /* return the option value */
3022                                 *(int *)optval = onoff;
3023                                 *optsize = sizeof(int);
3024                         }
3025                         break;
3026                 }
3027         case SCTP_RECVNXTINFO:
3028                 {
3029                         int onoff;
3030
3031                         if (*optsize < sizeof(int)) {
3032                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3033                                 error = EINVAL;
3034                         } else {
3035                                 SCTP_INP_RLOCK(inp);
3036                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3037                                 SCTP_INP_RUNLOCK(inp);
3038                         }
3039                         if (error == 0) {
3040                                 /* return the option value */
3041                                 *(int *)optval = onoff;
3042                                 *optsize = sizeof(int);
3043                         }
3044                         break;
3045                 }
3046         case SCTP_DEFAULT_SNDINFO:
3047                 {
3048                         struct sctp_sndinfo *info;
3049
3050                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3051                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3052
3053                         if (stcb) {
3054                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3055                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3056                                 info->snd_flags &= 0xfff0;
3057                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3058                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3059                                 SCTP_TCB_UNLOCK(stcb);
3060                         } else {
3061                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3062                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3063                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3064                                         SCTP_INP_RLOCK(inp);
3065                                         info->snd_sid = inp->def_send.sinfo_stream;
3066                                         info->snd_flags = inp->def_send.sinfo_flags;
3067                                         info->snd_flags &= 0xfff0;
3068                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3069                                         info->snd_context = inp->def_send.sinfo_context;
3070                                         SCTP_INP_RUNLOCK(inp);
3071                                 } else {
3072                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3073                                         error = EINVAL;
3074                                 }
3075                         }
3076                         if (error == 0) {
3077                                 *optsize = sizeof(struct sctp_sndinfo);
3078                         }
3079                         break;
3080                 }
3081         case SCTP_DEFAULT_PRINFO:
3082                 {
3083                         struct sctp_default_prinfo *info;
3084
3085                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3086                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3087
3088                         if (stcb) {
3089                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3090                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3091                                 SCTP_TCB_UNLOCK(stcb);
3092                         } else {
3093                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3094                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3095                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3096                                         SCTP_INP_RLOCK(inp);
3097                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3098                                         info->pr_value = inp->def_send.sinfo_timetolive;
3099                                         SCTP_INP_RUNLOCK(inp);
3100                                 } else {
3101                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3102                                         error = EINVAL;
3103                                 }
3104                         }
3105                         if (error == 0) {
3106                                 *optsize = sizeof(struct sctp_default_prinfo);
3107                         }
3108                         break;
3109                 }
3110         case SCTP_PEER_ADDR_THLDS:
3111                 {
3112                         struct sctp_paddrthlds *thlds;
3113                         struct sctp_nets *net;
3114
3115                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3116                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3117
3118                         net = NULL;
3119                         if (stcb) {
3120                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3121                         } else {
3122                                 /*
3123                                  * We increment here since
3124                                  * sctp_findassociation_ep_addr() wil do a
3125                                  * decrement if it finds the stcb as long as
3126                                  * the locked tcb (last argument) is NOT a
3127                                  * TCB.. aka NULL.
3128                                  */
3129                                 SCTP_INP_INCR_REF(inp);
3130                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3131                                 if (stcb == NULL) {
3132                                         SCTP_INP_DECR_REF(inp);
3133                                 }
3134                         }
3135                         if (stcb && (net == NULL)) {
3136                                 struct sockaddr *sa;
3137
3138                                 sa = (struct sockaddr *)&thlds->spt_address;
3139 #ifdef INET
3140                                 if (sa->sa_family == AF_INET) {
3141                                         struct sockaddr_in *sin;
3142
3143                                         sin = (struct sockaddr_in *)sa;
3144                                         if (sin->sin_addr.s_addr) {
3145                                                 error = EINVAL;
3146                                                 SCTP_TCB_UNLOCK(stcb);
3147                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3148                                                 break;
3149                                         }
3150                                 } else
3151 #endif
3152 #ifdef INET6
3153                                 if (sa->sa_family == AF_INET6) {
3154                                         struct sockaddr_in6 *sin6;
3155
3156                                         sin6 = (struct sockaddr_in6 *)sa;
3157                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3158                                                 error = EINVAL;
3159                                                 SCTP_TCB_UNLOCK(stcb);
3160                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3161                                                 break;
3162                                         }
3163                                 } else
3164 #endif
3165                                 {
3166                                         error = EAFNOSUPPORT;
3167                                         SCTP_TCB_UNLOCK(stcb);
3168                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3169                                         break;
3170                                 }
3171                         }
3172                         if (stcb) {
3173                                 if (net) {
3174                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3175                                         thlds->spt_pathpfthld = net->pf_threshold;
3176                                 } else {
3177                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3178                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3179                                 }
3180                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3181                                 SCTP_TCB_UNLOCK(stcb);
3182                         } else {
3183                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3184                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3185                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3186                                         /* Use endpoint defaults */
3187                                         SCTP_INP_RLOCK(inp);
3188                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3189                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3190                                         SCTP_INP_RUNLOCK(inp);
3191                                 } else {
3192                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3193                                         error = EINVAL;
3194                                 }
3195                         }
3196                         if (error == 0) {
3197                                 *optsize = sizeof(struct sctp_paddrthlds);
3198                         }
3199                         break;
3200                 }
3201         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3202                 {
3203                         struct sctp_udpencaps *encaps;
3204                         struct sctp_nets *net;
3205
3206                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3207                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3208
3209                         if (stcb) {
3210                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
3211                         } else {
3212                                 /*
3213                                  * We increment here since
3214                                  * sctp_findassociation_ep_addr() wil do a
3215                                  * decrement if it finds the stcb as long as
3216                                  * the locked tcb (last argument) is NOT a
3217                                  * TCB.. aka NULL.
3218                                  */
3219                                 net = NULL;
3220                                 SCTP_INP_INCR_REF(inp);
3221                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
3222                                 if (stcb == NULL) {
3223                                         SCTP_INP_DECR_REF(inp);
3224                                 }
3225                         }
3226                         if (stcb && (net == NULL)) {
3227                                 struct sockaddr *sa;
3228
3229                                 sa = (struct sockaddr *)&encaps->sue_address;
3230 #ifdef INET
3231                                 if (sa->sa_family == AF_INET) {
3232                                         struct sockaddr_in *sin;
3233
3234                                         sin = (struct sockaddr_in *)sa;
3235                                         if (sin->sin_addr.s_addr) {
3236                                                 error = EINVAL;
3237                                                 SCTP_TCB_UNLOCK(stcb);
3238                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3239                                                 break;
3240                                         }
3241                                 } else
3242 #endif
3243 #ifdef INET6
3244                                 if (sa->sa_family == AF_INET6) {
3245                                         struct sockaddr_in6 *sin6;
3246
3247                                         sin6 = (struct sockaddr_in6 *)sa;
3248                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3249                                                 error = EINVAL;
3250                                                 SCTP_TCB_UNLOCK(stcb);
3251                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3252                                                 break;
3253                                         }
3254                                 } else
3255 #endif
3256                                 {
3257                                         error = EAFNOSUPPORT;
3258                                         SCTP_TCB_UNLOCK(stcb);
3259                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3260                                         break;
3261                                 }
3262                         }
3263                         if (stcb) {
3264                                 if (net) {
3265                                         encaps->sue_port = net->port;
3266                                 } else {
3267                                         encaps->sue_port = stcb->asoc.port;
3268                                 }
3269                                 SCTP_TCB_UNLOCK(stcb);
3270                         } else {
3271                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3272                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3273                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3274                                         SCTP_INP_RLOCK(inp);
3275                                         encaps->sue_port = inp->sctp_ep.port;
3276                                         SCTP_INP_RUNLOCK(inp);
3277                                 } else {
3278                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3279                                         error = EINVAL;
3280                                 }
3281                         }
3282                         if (error == 0) {
3283                                 *optsize = sizeof(struct sctp_paddrparams);
3284                         }
3285                         break;
3286                 }
3287         case SCTP_ENABLE_STREAM_RESET:
3288                 {
3289                         struct sctp_assoc_value *av;
3290
3291                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3292                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3293
3294                         if (stcb) {
3295                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3296                                 SCTP_TCB_UNLOCK(stcb);
3297                         } else {
3298                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3299                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3300                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3301                                         SCTP_INP_RLOCK(inp);
3302                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3303                                         SCTP_INP_RUNLOCK(inp);
3304                                 } else {
3305                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3306                                         error = EINVAL;
3307                                 }
3308                         }
3309                         if (error == 0) {
3310                                 *optsize = sizeof(struct sctp_assoc_value);
3311                         }
3312                         break;
3313                 }
3314         default:
3315                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3316                 error = ENOPROTOOPT;
3317                 break;
3318         }                       /* end switch (sopt->sopt_name) */
3319         if (error) {
3320                 *optsize = 0;
3321         }
3322         return (error);
3323 }
3324
3325 static int
3326 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3327     void *p)
3328 {
3329         int error, set_opt;
3330         uint32_t *mopt;
3331         struct sctp_tcb *stcb = NULL;
3332         struct sctp_inpcb *inp = NULL;
3333         uint32_t vrf_id;
3334
3335         if (optval == NULL) {
3336                 SCTP_PRINTF("optval is NULL\n");
3337                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3338                 return (EINVAL);
3339         }
3340         inp = (struct sctp_inpcb *)so->so_pcb;
3341         if (inp == NULL) {
3342                 SCTP_PRINTF("inp is NULL?\n");
3343                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3344                 return (EINVAL);
3345         }
3346         vrf_id = inp->def_vrf_id;
3347
3348         error = 0;
3349         switch (optname) {
3350         case SCTP_NODELAY:
3351         case SCTP_AUTOCLOSE:
3352         case SCTP_AUTO_ASCONF:
3353         case SCTP_EXPLICIT_EOR:
3354         case SCTP_DISABLE_FRAGMENTS:
3355         case SCTP_USE_EXT_RCVINFO:
3356         case SCTP_I_WANT_MAPPED_V4_ADDR:
3357                 /* copy in the option value */
3358                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3359                 set_opt = 0;
3360                 if (error)
3361                         break;
3362                 switch (optname) {
3363                 case SCTP_DISABLE_FRAGMENTS:
3364                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3365                         break;
3366                 case SCTP_AUTO_ASCONF:
3367                         /*
3368                          * NOTE: we don't really support this flag
3369                          */
3370                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3371                                 /* only valid for bound all sockets */
3372                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3373                                     (*mopt != 0)) {
3374                                         /* forbidden by admin */
3375                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3376                                         return (EPERM);
3377                                 }
3378                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3379                         } else {
3380                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3381                                 return (EINVAL);
3382                         }
3383                         break;
3384                 case SCTP_EXPLICIT_EOR:
3385                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3386                         break;
3387                 case SCTP_USE_EXT_RCVINFO:
3388                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3389                         break;
3390                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3391                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3392                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3393                         } else {
3394                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3395                                 return (EINVAL);
3396                         }
3397                         break;
3398                 case SCTP_NODELAY:
3399                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3400                         break;
3401                 case SCTP_AUTOCLOSE:
3402                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3403                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3404                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3405                                 return (EINVAL);
3406                         }
3407                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3408                         /*
3409                          * The value is in ticks. Note this does not effect
3410                          * old associations, only new ones.
3411                          */
3412                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3413                         break;
3414                 }
3415                 SCTP_INP_WLOCK(inp);
3416                 if (*mopt != 0) {
3417                         sctp_feature_on(inp, set_opt);
3418                 } else {
3419                         sctp_feature_off(inp, set_opt);
3420                 }
3421                 SCTP_INP_WUNLOCK(inp);
3422                 break;
3423         case SCTP_REUSE_PORT:
3424                 {
3425                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3426                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3427                                 /* Can't set it after we are bound */
3428                                 error = EINVAL;
3429                                 break;
3430                         }
3431                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3432                                 /* Can't do this for a 1-m socket */
3433                                 error = EINVAL;
3434                                 break;
3435                         }
3436                         if (optval)
3437                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3438                         else
3439                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3440                         break;
3441                 }
3442         case SCTP_PARTIAL_DELIVERY_POINT:
3443                 {
3444                         uint32_t *value;
3445
3446                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3447                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3448                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3449                                 error = EINVAL;
3450                                 break;
3451                         }
3452                         inp->partial_delivery_point = *value;
3453                         break;
3454                 }
3455         case SCTP_FRAGMENT_INTERLEAVE:
3456                 /* not yet until we re-write sctp_recvmsg() */
3457                 {
3458                         uint32_t *level;
3459
3460                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3461                         if (*level == SCTP_FRAG_LEVEL_2) {
3462                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3463                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3464                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3465                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3466                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3467                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3468                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3469                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3470
3471                         } else {
3472                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3473                                 error = EINVAL;
3474                         }
3475                         break;
3476                 }
3477         case SCTP_CMT_ON_OFF:
3478                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3479                         struct sctp_assoc_value *av;
3480
3481                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3482                         if (av->assoc_value > SCTP_CMT_MAX) {
3483                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3484                                 error = EINVAL;
3485                                 break;
3486                         }
3487                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3488                         if (stcb) {
3489                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3490                                 SCTP_TCB_UNLOCK(stcb);
3491                         } else {
3492                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3493                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3494                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3495                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3496                                         SCTP_INP_WLOCK(inp);
3497                                         inp->sctp_cmt_on_off = av->assoc_value;
3498                                         SCTP_INP_WUNLOCK(inp);
3499                                 }
3500                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3501                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3502                                         SCTP_INP_RLOCK(inp);
3503                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3504                                                 SCTP_TCB_LOCK(stcb);
3505                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3506                                                 SCTP_TCB_UNLOCK(stcb);
3507                                         }
3508                                         SCTP_INP_RUNLOCK(inp);
3509                                 }
3510                         }
3511                 } else {
3512                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3513                         error = ENOPROTOOPT;
3514                 }
3515                 break;
3516         case SCTP_PLUGGABLE_CC:
3517                 {
3518                         struct sctp_assoc_value *av;
3519                         struct sctp_nets *net;
3520
3521                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3522                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3523                             (av->assoc_value != SCTP_CC_HSTCP) &&
3524                             (av->assoc_value != SCTP_CC_HTCP) &&
3525                             (av->assoc_value != SCTP_CC_RTCC)) {
3526                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3527                                 error = EINVAL;
3528                                 break;
3529                         }
3530                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3531                         if (stcb) {
3532                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3533                                 stcb->asoc.congestion_control_module = av->assoc_value;
3534                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3535                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3536                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3537                                         }
3538                                 }
3539                                 SCTP_TCB_UNLOCK(stcb);
3540                         } else {
3541                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3542                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3543                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3544                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3545                                         SCTP_INP_WLOCK(inp);
3546                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3547                                         SCTP_INP_WUNLOCK(inp);
3548                                 }
3549                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3550                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3551                                         SCTP_INP_RLOCK(inp);
3552                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3553                                                 SCTP_TCB_LOCK(stcb);
3554                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3555                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3556                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3557                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3558                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3559                                                         }
3560                                                 }
3561                                                 SCTP_TCB_UNLOCK(stcb);
3562                                         }
3563                                         SCTP_INP_RUNLOCK(inp);
3564                                 }
3565                         }
3566                         break;
3567                 }
3568         case SCTP_CC_OPTION:
3569                 {
3570                         struct sctp_cc_option *cc_opt;
3571
3572                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3573                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3574                         if (stcb == NULL) {
3575                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3576                                         SCTP_INP_RLOCK(inp);
3577                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3578                                                 SCTP_TCB_LOCK(stcb);
3579                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3580                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3581                                                 }
3582                                                 SCTP_TCB_UNLOCK(stcb);
3583                                         }
3584                                         SCTP_INP_RUNLOCK(inp);
3585                                 } else {
3586                                         error = EINVAL;
3587                                 }
3588                         } else {
3589                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3590                                         error = ENOTSUP;
3591                                 } else {
3592                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3593                                             cc_opt);
3594                                 }
3595                                 SCTP_TCB_UNLOCK(stcb);
3596                         }
3597                         break;
3598                 }
3599         case SCTP_PLUGGABLE_SS:
3600                 {
3601                         struct sctp_assoc_value *av;
3602
3603                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3604                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3605                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3606                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3607                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3608                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3609                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3610                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3611                                 error = EINVAL;
3612                                 break;
3613                         }
3614                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3615                         if (stcb) {
3616                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3617                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3618                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3619                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3620                                 SCTP_TCB_UNLOCK(stcb);
3621                         } else {
3622                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3623                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3624                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3625                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3626                                         SCTP_INP_WLOCK(inp);
3627                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3628                                         SCTP_INP_WUNLOCK(inp);
3629                                 }
3630                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3631                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3632                                         SCTP_INP_RLOCK(inp);
3633                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3634                                                 SCTP_TCB_LOCK(stcb);
3635                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3636                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3637                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3638                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3639                                                 SCTP_TCB_UNLOCK(stcb);
3640                                         }
3641                                         SCTP_INP_RUNLOCK(inp);
3642                                 }
3643                         }
3644                         break;
3645                 }
3646         case SCTP_SS_VALUE:
3647                 {
3648                         struct sctp_stream_value *av;
3649
3650                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3651                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3652                         if (stcb) {
3653                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3654                                     av->stream_value) < 0) {
3655                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3656                                         error = EINVAL;
3657                                 }
3658                                 SCTP_TCB_UNLOCK(stcb);
3659                         } else {
3660                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3661                                         SCTP_INP_RLOCK(inp);
3662                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3663                                                 SCTP_TCB_LOCK(stcb);
3664                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3665                                                     &stcb->asoc,
3666                                                     &stcb->asoc.strmout[av->stream_id],
3667                                                     av->stream_value);
3668                                                 SCTP_TCB_UNLOCK(stcb);
3669                                         }
3670                                         SCTP_INP_RUNLOCK(inp);
3671
3672                                 } else {
3673                                         /*
3674                                          * Can't set stream value without
3675                                          * association
3676                                          */
3677                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3678                                         error = EINVAL;
3679                                 }
3680                         }
3681                         break;
3682                 }
3683         case SCTP_CLR_STAT_LOG:
3684                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3685                 error = EOPNOTSUPP;
3686                 break;
3687         case SCTP_CONTEXT:
3688                 {
3689                         struct sctp_assoc_value *av;
3690
3691                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3692                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3693
3694                         if (stcb) {
3695                                 stcb->asoc.context = av->assoc_value;
3696                                 SCTP_TCB_UNLOCK(stcb);
3697                         } else {
3698                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3699                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3700                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3701                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3702                                         SCTP_INP_WLOCK(inp);
3703                                         inp->sctp_context = av->assoc_value;
3704                                         SCTP_INP_WUNLOCK(inp);
3705                                 }
3706                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3707                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3708                                         SCTP_INP_RLOCK(inp);
3709                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3710                                                 SCTP_TCB_LOCK(stcb);
3711                                                 stcb->asoc.context = av->assoc_value;
3712                                                 SCTP_TCB_UNLOCK(stcb);
3713                                         }
3714                                         SCTP_INP_RUNLOCK(inp);
3715                                 }
3716                         }
3717                         break;
3718                 }
3719         case SCTP_VRF_ID:
3720                 {
3721                         uint32_t *default_vrfid;
3722
3723                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3724                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3725                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3726                                 error = EINVAL;
3727                                 break;
3728                         }
3729                         inp->def_vrf_id = *default_vrfid;
3730                         break;
3731                 }
3732         case SCTP_DEL_VRF_ID:
3733                 {
3734                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3735                         error = EOPNOTSUPP;
3736                         break;
3737                 }
3738         case SCTP_ADD_VRF_ID:
3739                 {
3740                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3741                         error = EOPNOTSUPP;
3742                         break;
3743                 }
3744         case SCTP_DELAYED_SACK:
3745                 {
3746                         struct sctp_sack_info *sack;
3747
3748                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3749                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3750                         if (sack->sack_delay) {
3751                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3752                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3753                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3754                                         sack->sack_delay = TICKS_TO_MSEC(1);
3755                                 }
3756                         }
3757                         if (stcb) {
3758                                 if (sack->sack_delay) {
3759                                         stcb->asoc.delayed_ack = sack->sack_delay;
3760                                 }
3761                                 if (sack->sack_freq) {
3762                                         stcb->asoc.sack_freq = sack->sack_freq;
3763                                 }
3764                                 SCTP_TCB_UNLOCK(stcb);
3765                         } else {
3766                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3767                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3768                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3769                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3770                                         SCTP_INP_WLOCK(inp);
3771                                         if (sack->sack_delay) {
3772                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3773                                         }
3774                                         if (sack->sack_freq) {
3775                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3776                                         }
3777                                         SCTP_INP_WUNLOCK(inp);
3778                                 }
3779                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3780                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3781                                         SCTP_INP_RLOCK(inp);
3782                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3783                                                 SCTP_TCB_LOCK(stcb);
3784                                                 if (sack->sack_delay) {
3785                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3786                                                 }
3787                                                 if (sack->sack_freq) {
3788                                                         stcb->asoc.sack_freq = sack->sack_freq;
3789                                                 }
3790                                                 SCTP_TCB_UNLOCK(stcb);
3791                                         }
3792                                         SCTP_INP_RUNLOCK(inp);
3793                                 }
3794                         }
3795                         break;
3796                 }
3797         case SCTP_AUTH_CHUNK:
3798                 {
3799                         struct sctp_authchunk *sauth;
3800
3801                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3802
3803                         SCTP_INP_WLOCK(inp);
3804                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3805                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3806                                 error = EINVAL;
3807                         }
3808                         SCTP_INP_WUNLOCK(inp);
3809                         break;
3810                 }
3811         case SCTP_AUTH_KEY:
3812                 {
3813                         struct sctp_authkey *sca;
3814                         struct sctp_keyhead *shared_keys;
3815                         sctp_sharedkey_t *shared_key;
3816                         sctp_key_t *key = NULL;
3817                         size_t size;
3818
3819                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3820                         if (sca->sca_keylength == 0) {
3821                                 size = optsize - sizeof(struct sctp_authkey);
3822                         } else {
3823                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3824                                         size = sca->sca_keylength;
3825                                 } else {
3826                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3827                                         error = EINVAL;
3828                                         break;
3829                                 }
3830                         }
3831                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3832
3833                         if (stcb) {
3834                                 shared_keys = &stcb->asoc.shared_keys;
3835                                 /* clear the cached keys for this key id */
3836                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3837                                 /*
3838                                  * create the new shared key and
3839                                  * insert/replace it
3840                                  */
3841                                 if (size > 0) {
3842                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3843                                         if (key == NULL) {
3844                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3845                                                 error = ENOMEM;
3846                                                 SCTP_TCB_UNLOCK(stcb);
3847                                                 break;
3848                                         }
3849                                 }
3850                                 shared_key = sctp_alloc_sharedkey();
3851                                 if (shared_key == NULL) {
3852                                         sctp_free_key(key);
3853                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3854                                         error = ENOMEM;
3855                                         SCTP_TCB_UNLOCK(stcb);
3856                                         break;
3857                                 }
3858                                 shared_key->key = key;
3859                                 shared_key->keyid = sca->sca_keynumber;
3860                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3861                                 SCTP_TCB_UNLOCK(stcb);
3862                         } else {
3863                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3864                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3865                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3866                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3867                                         SCTP_INP_WLOCK(inp);
3868                                         shared_keys = &inp->sctp_ep.shared_keys;
3869                                         /*
3870                                          * clear the cached keys on all
3871                                          * assocs for this key id
3872                                          */
3873                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3874                                         /*
3875                                          * create the new shared key and
3876                                          * insert/replace it
3877                                          */
3878                                         if (size > 0) {
3879                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3880                                                 if (key == NULL) {
3881                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3882                                                         error = ENOMEM;
3883                                                         SCTP_INP_WUNLOCK(inp);
3884                                                         break;
3885                                                 }
3886                                         }
3887                                         shared_key = sctp_alloc_sharedkey();
3888                                         if (shared_key == NULL) {
3889                                                 sctp_free_key(key);
3890                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3891                                                 error = ENOMEM;
3892                                                 SCTP_INP_WUNLOCK(inp);
3893                                                 break;
3894                                         }
3895                                         shared_key->key = key;
3896                                         shared_key->keyid = sca->sca_keynumber;
3897                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3898                                         SCTP_INP_WUNLOCK(inp);
3899                                 }
3900                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3901                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3902                                         SCTP_INP_RLOCK(inp);
3903                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3904                                                 SCTP_TCB_LOCK(stcb);
3905                                                 shared_keys = &stcb->asoc.shared_keys;
3906                                                 /*
3907                                                  * clear the cached keys for
3908                                                  * this key id
3909                                                  */
3910                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3911                                                 /*
3912                                                  * create the new shared key
3913                                                  * and insert/replace it
3914                                                  */
3915                                                 if (size > 0) {
3916                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3917                                                         if (key == NULL) {
3918                                                                 SCTP_TCB_UNLOCK(stcb);
3919                                                                 continue;
3920                                                         }
3921                                                 }
3922                                                 shared_key = sctp_alloc_sharedkey();
3923                                                 if (shared_key == NULL) {
3924                                                         sctp_free_key(key);
3925                                                         SCTP_TCB_UNLOCK(stcb);
3926                                                         continue;
3927                                                 }
3928                                                 shared_key->key = key;
3929                                                 shared_key->keyid = sca->sca_keynumber;
3930                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3931                                                 SCTP_TCB_UNLOCK(stcb);
3932                                         }
3933                                         SCTP_INP_RUNLOCK(inp);
3934                                 }
3935                         }
3936                         break;
3937                 }
3938         case SCTP_HMAC_IDENT:
3939                 {
3940                         struct sctp_hmacalgo *shmac;
3941                         sctp_hmaclist_t *hmaclist;
3942                         uint16_t hmacid;
3943                         uint32_t i;
3944                         size_t found;
3945
3946                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3947                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3948                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3949                                 error = EINVAL;
3950                                 break;
3951                         }
3952                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3953                         if (hmaclist == NULL) {
3954                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3955                                 error = ENOMEM;
3956                                 break;
3957                         }
3958                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3959                                 hmacid = shmac->shmac_idents[i];
3960                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3961                                          /* invalid HMACs were found */ ;
3962                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3963                                         error = EINVAL;
3964                                         sctp_free_hmaclist(hmaclist);
3965                                         goto sctp_set_hmac_done;
3966                                 }
3967                         }
3968                         found = 0;
3969                         for (i = 0; i < hmaclist->num_algo; i++) {
3970                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3971                                         /* already in list */
3972                                         found = 1;
3973                                 }
3974                         }
3975                         if (!found) {
3976                                 sctp_free_hmaclist(hmaclist);
3977                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3978                                 error = EINVAL;
3979                                 break;
3980                         }
3981                         /* set it on the endpoint */
3982                         SCTP_INP_WLOCK(inp);
3983                         if (inp->sctp_ep.local_hmacs)
3984                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3985                         inp->sctp_ep.local_hmacs = hmaclist;
3986                         SCTP_INP_WUNLOCK(inp);
3987         sctp_set_hmac_done:
3988                         break;
3989                 }
3990         case SCTP_AUTH_ACTIVE_KEY:
3991                 {
3992                         struct sctp_authkeyid *scact;
3993
3994                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3995                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3996
3997                         /* set the active key on the right place */
3998                         if (stcb) {
3999                                 /* set the active key on the assoc */
4000                                 if (sctp_auth_setactivekey(stcb,
4001                                     scact->scact_keynumber)) {
4002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4003                                             SCTP_FROM_SCTP_USRREQ,
4004                                             EINVAL);
4005                                         error = EINVAL;
4006                                 }
4007                                 SCTP_TCB_UNLOCK(stcb);
4008                         } else {
4009                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4010                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4011                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4012                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4013                                         SCTP_INP_WLOCK(inp);
4014                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4015                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4016                                                 error = EINVAL;
4017                                         }
4018                                         SCTP_INP_WUNLOCK(inp);
4019                                 }
4020                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4021                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4022                                         SCTP_INP_RLOCK(inp);
4023                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4024                                                 SCTP_TCB_LOCK(stcb);
4025                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4026                                                 SCTP_TCB_UNLOCK(stcb);
4027                                         }
4028                                         SCTP_INP_RUNLOCK(inp);
4029                                 }
4030                         }
4031                         break;
4032                 }
4033         case SCTP_AUTH_DELETE_KEY:
4034                 {
4035                         struct sctp_authkeyid *scdel;
4036
4037                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4038                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4039
4040                         /* delete the key from the right place */
4041                         if (stcb) {
4042                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4043                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4044                                         error = EINVAL;
4045                                 }
4046                                 SCTP_TCB_UNLOCK(stcb);
4047                         } else {
4048                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4049                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4050                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4051                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4052                                         SCTP_INP_WLOCK(inp);
4053                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4054                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4055                                                 error = EINVAL;
4056                                         }
4057                                         SCTP_INP_WUNLOCK(inp);
4058                                 }
4059                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4060                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4061                                         SCTP_INP_RLOCK(inp);
4062                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4063                                                 SCTP_TCB_LOCK(stcb);
4064                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4065                                                 SCTP_TCB_UNLOCK(stcb);
4066                                         }
4067                                         SCTP_INP_RUNLOCK(inp);
4068                                 }
4069                         }
4070                         break;
4071                 }
4072         case SCTP_AUTH_DEACTIVATE_KEY:
4073                 {
4074                         struct sctp_authkeyid *keyid;
4075
4076                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4077                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4078
4079                         /* deactivate the key from the right place */
4080                         if (stcb) {
4081                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4082                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4083                                         error = EINVAL;
4084                                 }
4085                                 SCTP_TCB_UNLOCK(stcb);
4086                         } else {
4087                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4088                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4089                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4090                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4091                                         SCTP_INP_WLOCK(inp);
4092                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4093                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4094                                                 error = EINVAL;
4095                                         }
4096                                         SCTP_INP_WUNLOCK(inp);
4097                                 }
4098                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4099                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4100                                         SCTP_INP_RLOCK(inp);
4101                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4102                                                 SCTP_TCB_LOCK(stcb);
4103                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4104                                                 SCTP_TCB_UNLOCK(stcb);
4105                                         }
4106                                         SCTP_INP_RUNLOCK(inp);
4107                                 }
4108                         }
4109                         break;
4110                 }
4111         case SCTP_ENABLE_STREAM_RESET:
4112                 {
4113                         struct sctp_assoc_value *av;
4114
4115                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4116                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4117                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4118                                 error = EINVAL;
4119                                 break;
4120                         }
4121                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4122                         if (stcb) {
4123                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4124                                 SCTP_TCB_UNLOCK(stcb);
4125                         } else {
4126                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4127                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4128                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4129                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4130                                         SCTP_INP_WLOCK(inp);
4131                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4132                                         SCTP_INP_WUNLOCK(inp);
4133                                 }
4134                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4135                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4136                                         SCTP_INP_RLOCK(inp);
4137                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4138                                                 SCTP_TCB_LOCK(stcb);
4139                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4140                                                 SCTP_TCB_UNLOCK(stcb);
4141                                         }
4142                                         SCTP_INP_RUNLOCK(inp);
4143                                 }
4144                         }
4145                         break;
4146                 }
4147         case SCTP_RESET_STREAMS:
4148                 {
4149                         struct sctp_reset_streams *strrst;
4150                         int i, send_out = 0;
4151                         int send_in = 0;
4152
4153                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4154                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4155                         if (stcb == NULL) {
4156                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4157                                 error = ENOENT;
4158                                 break;
4159                         }
4160                         if (stcb->asoc.peer_supports_strreset == 0) {
4161                                 /*
4162                                  * Peer does not support the chunk type.
4163                                  */
4164                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4165                                 error = EOPNOTSUPP;
4166                                 SCTP_TCB_UNLOCK(stcb);
4167                                 break;
4168                         }
4169                         if (stcb->asoc.stream_reset_outstanding) {
4170                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4171                                 error = EALREADY;
4172                                 SCTP_TCB_UNLOCK(stcb);
4173                                 break;
4174                         }
4175                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4176                                 send_in = 1;
4177                         }
4178                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4179                                 send_out = 1;
4180                         }
4181                         if ((send_in == 0) && (send_out == 0)) {
4182                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4183                                 error = EINVAL;
4184                                 SCTP_TCB_UNLOCK(stcb);
4185                                 break;
4186                         }
4187                         for (i = 0; i < strrst->srs_number_streams; i++) {
4188                                 if ((send_in) &&
4189                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4190                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4191                                         error = EINVAL;
4192                                         break;
4193                                 }
4194                                 if ((send_out) &&
4195                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4196                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4197                                         error = EINVAL;
4198                                         break;
4199                                 }
4200                         }
4201                         if (error) {
4202                                 SCTP_TCB_UNLOCK(stcb);
4203                                 break;
4204                         }
4205                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4206                             strrst->srs_stream_list,
4207                             send_out, send_in, 0, 0, 0, 0, 0);
4208
4209                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4210                         SCTP_TCB_UNLOCK(stcb);
4211                         break;
4212                 }
4213         case SCTP_ADD_STREAMS:
4214                 {
4215                         struct sctp_add_streams *stradd;
4216                         uint8_t addstream = 0;
4217                         uint16_t add_o_strmcnt = 0;
4218                         uint16_t add_i_strmcnt = 0;
4219
4220                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4221                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4222                         if (stcb == NULL) {
4223                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4224                                 error = ENOENT;
4225                                 break;
4226                         }
4227                         if (stcb->asoc.peer_supports_strreset == 0) {
4228                                 /*
4229                                  * Peer does not support the chunk type.
4230                                  */
4231                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4232                                 error = EOPNOTSUPP;
4233                                 SCTP_TCB_UNLOCK(stcb);
4234                                 break;
4235                         }
4236                         if (stcb->asoc.stream_reset_outstanding) {
4237                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4238                                 error = EALREADY;
4239                                 SCTP_TCB_UNLOCK(stcb);
4240                                 break;
4241                         }
4242                         if ((stradd->sas_outstrms == 0) &&
4243                             (stradd->sas_instrms == 0)) {
4244                                 error = EINVAL;
4245                                 goto skip_stuff;
4246                         }
4247                         if (stradd->sas_outstrms) {
4248                                 addstream = 1;
4249                                 /* We allocate here */
4250                                 add_o_strmcnt = stradd->sas_outstrms;
4251                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4252                                         /* You can't have more than 64k */
4253                                         error = EINVAL;
4254                                         goto skip_stuff;
4255                                 }
4256                         }
4257                         if (stradd->sas_instrms) {
4258                                 int cnt;
4259
4260                                 addstream |= 2;
4261                                 /*
4262                                  * We allocate inside
4263                                  * sctp_send_str_reset_req()
4264                                  */
4265                                 add_i_strmcnt = stradd->sas_instrms;
4266                                 cnt = add_i_strmcnt;
4267                                 cnt += stcb->asoc.streamincnt;
4268                                 if (cnt > 0x0000ffff) {
4269                                         /* You can't have more than 64k */
4270                                         error = EINVAL;
4271                                         goto skip_stuff;
4272                                 }
4273                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4274                                         /* More than you are allowed */
4275                                         error = EINVAL;
4276                                         goto skip_stuff;
4277                                 }
4278                         }
4279                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4280                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4281         skip_stuff:
4282                         SCTP_TCB_UNLOCK(stcb);
4283                         break;
4284                 }
4285         case SCTP_RESET_ASSOC:
4286                 {
4287                         uint32_t *value;
4288
4289                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4290                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4291                         if (stcb == NULL) {
4292                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4293                                 error = ENOENT;
4294                                 break;
4295                         }
4296                         if (stcb->asoc.peer_supports_strreset == 0) {
4297                                 /*
4298                                  * Peer does not support the chunk type.
4299                                  */
4300                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4301                                 error = EOPNOTSUPP;
4302                                 SCTP_TCB_UNLOCK(stcb);
4303                                 break;
4304                         }
4305                         if (stcb->asoc.stream_reset_outstanding) {
4306                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4307                                 error = EALREADY;
4308                                 SCTP_TCB_UNLOCK(stcb);
4309                                 break;
4310                         }
4311                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4312                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4313                         SCTP_TCB_UNLOCK(stcb);
4314                         break;
4315                 }
4316         case SCTP_CONNECT_X:
4317                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4318                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4319                         error = EINVAL;
4320                         break;
4321                 }
4322                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4323                 break;
4324         case SCTP_CONNECT_X_DELAYED:
4325                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4326                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4327                         error = EINVAL;
4328                         break;
4329                 }
4330                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4331                 break;
4332         case SCTP_CONNECT_X_COMPLETE:
4333                 {
4334                         struct sockaddr *sa;
4335                         struct sctp_nets *net;
4336
4337                         /* FIXME MT: check correct? */
4338                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4339
4340                         /* find tcb */
4341                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4342                                 SCTP_INP_RLOCK(inp);
4343                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4344                                 if (stcb) {
4345                                         SCTP_TCB_LOCK(stcb);
4346                                         net = sctp_findnet(stcb, sa);
4347                                 }
4348                                 SCTP_INP_RUNLOCK(inp);
4349                         } else {
4350                                 /*
4351                                  * We increment here since
4352                                  * sctp_findassociation_ep_addr() wil do a
4353                                  * decrement if it finds the stcb as long as
4354                                  * the locked tcb (last argument) is NOT a
4355                                  * TCB.. aka NULL.
4356                                  */
4357                                 SCTP_INP_INCR_REF(inp);
4358                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4359                                 if (stcb == NULL) {
4360                                         SCTP_INP_DECR_REF(inp);
4361                                 }
4362                         }
4363
4364                         if (stcb == NULL) {
4365                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4366                                 error = ENOENT;
4367                                 break;
4368                         }
4369                         if (stcb->asoc.delayed_connection == 1) {
4370                                 stcb->asoc.delayed_connection = 0;
4371                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4372                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4373                                     stcb->asoc.primary_destination,
4374                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4375                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4376                         } else {
4377                                 /*
4378                                  * already expired or did not use delayed
4379                                  * connectx
4380                                  */
4381                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4382                                 error = EALREADY;
4383                         }
4384                         SCTP_TCB_UNLOCK(stcb);
4385                         break;
4386                 }
4387         case SCTP_MAX_BURST:
4388                 {
4389                         struct sctp_assoc_value *av;
4390
4391                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4392                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4393
4394                         if (stcb) {
4395                                 stcb->asoc.max_burst = av->assoc_value;
4396                                 SCTP_TCB_UNLOCK(stcb);
4397                         } else {
4398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4399                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4400                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4401                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4402                                         SCTP_INP_WLOCK(inp);
4403                                         inp->sctp_ep.max_burst = av->assoc_value;
4404                                         SCTP_INP_WUNLOCK(inp);
4405                                 }
4406                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4407                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4408                                         SCTP_INP_RLOCK(inp);
4409                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4410                                                 SCTP_TCB_LOCK(stcb);
4411                                                 stcb->asoc.max_burst = av->assoc_value;
4412                                                 SCTP_TCB_UNLOCK(stcb);
4413                                         }
4414                                         SCTP_INP_RUNLOCK(inp);
4415                                 }
4416                         }
4417                         break;
4418                 }
4419         case SCTP_MAXSEG:
4420                 {
4421                         struct sctp_assoc_value *av;
4422                         int ovh;
4423
4424                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4425                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4426
4427                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4428                                 ovh = SCTP_MED_OVERHEAD;
4429                         } else {
4430                                 ovh = SCTP_MED_V4_OVERHEAD;
4431                         }
4432                         if (stcb) {
4433                                 if (av->assoc_value) {
4434                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4435                                 } else {
4436                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4437                                 }
4438                                 SCTP_TCB_UNLOCK(stcb);
4439                         } else {
4440                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4441                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4442                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4443                                         SCTP_INP_WLOCK(inp);
4444                                         /*
4445                                          * FIXME MT: I think this is not in
4446                                          * tune with the API ID
4447                                          */
4448                                         if (av->assoc_value) {
4449                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4450                                         } else {
4451                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4452                                         }
4453                                         SCTP_INP_WUNLOCK(inp);
4454                                 } else {
4455                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4456                                         error = EINVAL;
4457                                 }
4458                         }
4459                         break;
4460                 }
4461         case SCTP_EVENTS:
4462                 {
4463                         struct sctp_event_subscribe *events;
4464
4465                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4466
4467                         SCTP_INP_WLOCK(inp);
4468                         if (events->sctp_data_io_event) {
4469                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4470                         } else {
4471                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4472                         }
4473
4474                         if (events->sctp_association_event) {
4475                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4476                         } else {
4477                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4478                         }
4479
4480                         if (events->sctp_address_event) {
4481                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4482                         } else {
4483                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4484                         }
4485
4486                         if (events->sctp_send_failure_event) {
4487                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4488                         } else {
4489                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4490                         }
4491
4492                         if (events->sctp_peer_error_event) {
4493                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4494                         } else {
4495                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4496                         }
4497
4498                         if (events->sctp_shutdown_event) {
4499                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4500                         } else {
4501                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4502                         }
4503
4504                         if (events->sctp_partial_delivery_event) {
4505                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4506                         } else {
4507                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4508                         }
4509
4510                         if (events->sctp_adaptation_layer_event) {
4511                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4512                         } else {
4513                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4514                         }
4515
4516                         if (events->sctp_authentication_event) {
4517                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4518                         } else {
4519                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4520                         }
4521
4522                         if (events->sctp_sender_dry_event) {
4523                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4524                         } else {
4525                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4526                         }
4527
4528                         if (events->sctp_stream_reset_event) {
4529                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4530                         } else {
4531                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4532                         }
4533                         SCTP_INP_WUNLOCK(inp);
4534
4535                         SCTP_INP_RLOCK(inp);
4536                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4537                                 SCTP_TCB_LOCK(stcb);
4538                                 if (events->sctp_association_event) {
4539                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4540                                 } else {
4541                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4542                                 }
4543                                 if (events->sctp_address_event) {
4544                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4545                                 } else {
4546                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4547                                 }
4548                                 if (events->sctp_send_failure_event) {
4549                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4550                                 } else {
4551                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4552                                 }
4553                                 if (events->sctp_peer_error_event) {
4554                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4555                                 } else {
4556                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4557                                 }
4558                                 if (events->sctp_shutdown_event) {
4559                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4560                                 } else {
4561                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4562                                 }
4563                                 if (events->sctp_partial_delivery_event) {
4564                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4565                                 } else {
4566                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4567                                 }
4568                                 if (events->sctp_adaptation_layer_event) {
4569                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4570                                 } else {
4571                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4572                                 }
4573                                 if (events->sctp_authentication_event) {
4574                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4575                                 } else {
4576                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4577                                 }
4578                                 if (events->sctp_sender_dry_event) {
4579                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4580                                 } else {
4581                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4582                                 }
4583                                 if (events->sctp_stream_reset_event) {
4584                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4585                                 } else {
4586                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4587                                 }
4588                                 SCTP_TCB_UNLOCK(stcb);
4589                         }
4590                         /*
4591                          * Send up the sender dry event only for 1-to-1
4592                          * style sockets.
4593                          */
4594                         if (events->sctp_sender_dry_event) {
4595                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4596                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4597                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4598                                         if (stcb) {
4599                                                 SCTP_TCB_LOCK(stcb);
4600                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4601                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4602                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4603                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4604                                                 }
4605                                                 SCTP_TCB_UNLOCK(stcb);
4606                                         }
4607                                 }
4608                         }
4609                         SCTP_INP_RUNLOCK(inp);
4610                         break;
4611                 }
4612         case SCTP_ADAPTATION_LAYER:
4613                 {
4614                         struct sctp_setadaptation *adap_bits;
4615
4616                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4617                         SCTP_INP_WLOCK(inp);
4618                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4619                         SCTP_INP_WUNLOCK(inp);
4620                         break;
4621                 }
4622 #ifdef SCTP_DEBUG
4623         case SCTP_SET_INITIAL_DBG_SEQ:
4624                 {
4625                         uint32_t *vvv;
4626
4627                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4628                         SCTP_INP_WLOCK(inp);
4629                         inp->sctp_ep.initial_sequence_debug = *vvv;
4630                         SCTP_INP_WUNLOCK(inp);
4631                         break;
4632                 }
4633 #endif
4634         case SCTP_DEFAULT_SEND_PARAM:
4635                 {
4636                         struct sctp_sndrcvinfo *s_info;
4637
4638                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4639                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4640
4641                         if (stcb) {
4642                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4643                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4644                                 } else {
4645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4646                                         error = EINVAL;
4647                                 }
4648                                 SCTP_TCB_UNLOCK(stcb);
4649                         } else {
4650                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4651                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4652                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4653                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4654                                         SCTP_INP_WLOCK(inp);
4655                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4656                                         SCTP_INP_WUNLOCK(inp);
4657                                 }
4658                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4659                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4660                                         SCTP_INP_RLOCK(inp);
4661                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4662                                                 SCTP_TCB_LOCK(stcb);
4663                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4664                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4665                                                 }
4666                                                 SCTP_TCB_UNLOCK(stcb);
4667                                         }
4668                                         SCTP_INP_RUNLOCK(inp);
4669                                 }
4670                         }
4671                         break;
4672                 }
4673         case SCTP_PEER_ADDR_PARAMS:
4674                 {
4675                         struct sctp_paddrparams *paddrp;
4676                         struct sctp_nets *net;
4677
4678                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4679                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4680                         net = NULL;
4681                         if (stcb) {
4682                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4683                         } else {
4684                                 /*
4685                                  * We increment here since
4686                                  * sctp_findassociation_ep_addr() wil do a
4687                                  * decrement if it finds the stcb as long as
4688                                  * the locked tcb (last argument) is NOT a
4689                                  * TCB.. aka NULL.
4690                                  */
4691                                 SCTP_INP_INCR_REF(inp);
4692                                 stcb = sctp_findassociation_ep_addr(&inp,
4693                                     (struct sockaddr *)&paddrp->spp_address,
4694                                     &net, NULL, NULL);
4695                                 if (stcb == NULL) {
4696                                         SCTP_INP_DECR_REF(inp);
4697                                 }
4698                         }
4699                         if (stcb && (net == NULL)) {
4700                                 struct sockaddr *sa;
4701
4702                                 sa = (struct sockaddr *)&paddrp->spp_address;
4703 #ifdef INET
4704                                 if (sa->sa_family == AF_INET) {
4705
4706                                         struct sockaddr_in *sin;
4707
4708                                         sin = (struct sockaddr_in *)sa;
4709                                         if (sin->sin_addr.s_addr) {
4710                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4711                                                 SCTP_TCB_UNLOCK(stcb);
4712                                                 error = EINVAL;
4713                                                 break;
4714                                         }
4715                                 } else
4716 #endif
4717 #ifdef INET6
4718                                 if (sa->sa_family == AF_INET6) {
4719                                         struct sockaddr_in6 *sin6;
4720
4721                                         sin6 = (struct sockaddr_in6 *)sa;
4722                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4723                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4724                                                 SCTP_TCB_UNLOCK(stcb);
4725                                                 error = EINVAL;
4726                                                 break;
4727                                         }
4728                                 } else
4729 #endif
4730                                 {
4731                                         error = EAFNOSUPPORT;
4732                                         SCTP_TCB_UNLOCK(stcb);
4733                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4734                                         break;
4735                                 }
4736                         }
4737                         /* sanity checks */
4738                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4739                                 if (stcb)
4740                                         SCTP_TCB_UNLOCK(stcb);
4741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4742                                 return (EINVAL);
4743                         }
4744                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4745                                 if (stcb)
4746                                         SCTP_TCB_UNLOCK(stcb);
4747                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4748                                 return (EINVAL);
4749                         }
4750                         if (stcb) {
4751                                 /************************TCB SPECIFIC SET ******************/
4752                                 /*
4753                                  * do we change the timer for HB, we run
4754                                  * only one?
4755                                  */
4756                                 int ovh = 0;
4757
4758                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4759                                         ovh = SCTP_MED_OVERHEAD;
4760                                 } else {
4761                                         ovh = SCTP_MED_V4_OVERHEAD;
4762                                 }
4763
4764                                 /* network sets ? */
4765                                 if (net) {
4766                                         /************************NET SPECIFIC SET ******************/
4767                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4768                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4769                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4770                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4771                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4772                                                 }
4773                                                 net->dest_state |= SCTP_ADDR_NOHB;
4774                                         }
4775                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4776                                                 if (paddrp->spp_hbinterval) {
4777                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4778                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4779                                                         net->heart_beat_delay = 0;
4780                                                 }
4781                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4782                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4783                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4784                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4785                                         }
4786                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4787                                                 /* on demand HB */
4788                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4789                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
4790                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4791                                         }
4792                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4793                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4794                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4795                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4796                                                 }
4797                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
4798                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4799                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4800                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4801                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
4802                                                         }
4803                                                 }
4804                                         }
4805                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4806                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4807                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4808                                                 }
4809                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4810                                         }
4811                                         if (paddrp->spp_pathmaxrxt) {
4812                                                 if (net->dest_state & SCTP_ADDR_PF) {
4813                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4814                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4815                                                         }
4816                                                 } else {
4817                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4818                                                             (net->error_count > net->pf_threshold)) {
4819                                                                 net->dest_state |= SCTP_ADDR_PF;
4820                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4821                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4822                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4823                                                         }
4824                                                 }
4825                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4826                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4827                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4828                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
4829                                                         }
4830                                                 } else {
4831                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4832                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4833                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
4834                                                         }
4835                                                 }
4836                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4837                                         }
4838                                         if (paddrp->spp_flags & SPP_DSCP) {
4839                                                 net->dscp = paddrp->spp_dscp & 0xfc;
4840                                                 net->dscp |= 0x01;
4841                                         }
4842 #ifdef INET6
4843                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4844                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4845                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4846                                                         net->flowlabel |= 0x80000000;
4847                                                 }
4848                                         }
4849 #endif
4850                                 } else {
4851                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4852                                         if (paddrp->spp_pathmaxrxt) {
4853                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4854                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4855                                                         if (net->dest_state & SCTP_ADDR_PF) {
4856                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4857                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4858                                                                 }
4859                                                         } else {
4860                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4861                                                                     (net->error_count > net->pf_threshold)) {
4862                                                                         net->dest_state |= SCTP_ADDR_PF;
4863                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4864                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4865                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4866                                                                 }
4867                                                         }
4868                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4869                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4870                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4871                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
4872                                                                 }
4873                                                         } else {
4874                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4875                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4876                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
4877                                                                 }
4878                                                         }
4879                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4880                                                 }
4881                                         }
4882                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4883                                                 if (paddrp->spp_hbinterval) {
4884                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4885                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4886                                                         stcb->asoc.heart_beat_delay = 0;
4887                                                 }
4888                                                 /* Turn back on the timer */
4889                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4890                                                         if (paddrp->spp_hbinterval) {
4891                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4892                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4893                                                                 net->heart_beat_delay = 0;
4894                                                         }
4895                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4896                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4897                                                         }
4898                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4899                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4900                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4901                                                 }
4902                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4903                                         }
4904                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4905                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4906                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4907                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4908                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4909                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4910                                                                 }
4911                                                         }
4912                                                 }
4913                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4914                                         }
4915                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4916                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4917                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4918                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4919                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4920                                                         }
4921                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
4922                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4923                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4924                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4925                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
4926                                                                 }
4927                                                         }
4928                                                 }
4929                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4930                                         }
4931                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4932                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4933                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4934                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4935                                                         }
4936                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4937                                                 }
4938                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4939                                         }
4940                                         if (paddrp->spp_flags & SPP_DSCP) {
4941                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4942                                                         net->dscp = paddrp->spp_dscp & 0xfc;
4943                                                         net->dscp |= 0x01;
4944                                                 }
4945                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
4946                                                 stcb->asoc.default_dscp |= 0x01;
4947                                         }
4948 #ifdef INET6
4949                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4950                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4951                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4952                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4953                                                                 net->flowlabel |= 0x80000000;
4954                                                         }
4955                                                 }
4956                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4957                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4958                                         }
4959 #endif
4960                                 }
4961                                 SCTP_TCB_UNLOCK(stcb);
4962                         } else {
4963                                 /************************NO TCB, SET TO default stuff ******************/
4964                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4965                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4966                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4967                                         SCTP_INP_WLOCK(inp);
4968                                         /*
4969                                          * For the TOS/FLOWLABEL stuff you
4970                                          * set it with the options on the
4971                                          * socket
4972                                          */
4973                                         if (paddrp->spp_pathmaxrxt) {
4974                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
4975                                         }
4976                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
4977                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4978                                         else if (paddrp->spp_hbinterval) {
4979                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
4980                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
4981                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4982                                         }
4983                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4984                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4985                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4986                                                 } else if (paddrp->spp_hbinterval) {
4987                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4988                                                 }
4989                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4990                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
4991                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4992                                         }
4993                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4994                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4995                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
4996                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4997                                         }
4998                                         if (paddrp->spp_flags & SPP_DSCP) {
4999                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5000                                                 inp->sctp_ep.default_dscp |= 0x01;
5001                                         }
5002 #ifdef INET6
5003                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5004                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5005                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5006                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5007                                                 }
5008                                         }
5009 #endif
5010                                         SCTP_INP_WUNLOCK(inp);
5011                                 } else {
5012                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5013                                         error = EINVAL;
5014                                 }
5015                         }
5016                         break;
5017                 }
5018         case SCTP_RTOINFO:
5019                 {
5020                         struct sctp_rtoinfo *srto;
5021                         uint32_t new_init, new_min, new_max;
5022
5023                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5024                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5025
5026                         if (stcb) {
5027                                 if (srto->srto_initial)
5028                                         new_init = srto->srto_initial;
5029                                 else
5030                                         new_init = stcb->asoc.initial_rto;
5031                                 if (srto->srto_max)
5032                                         new_max = srto->srto_max;
5033                                 else
5034                                         new_max = stcb->asoc.maxrto;
5035                                 if (srto->srto_min)
5036                                         new_min = srto->srto_min;
5037                                 else
5038                                         new_min = stcb->asoc.minrto;
5039                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5040                                         stcb->asoc.initial_rto = new_init;
5041                                         stcb->asoc.maxrto = new_max;
5042                                         stcb->asoc.minrto = new_min;
5043                                 } else {
5044                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5045                                         error = EINVAL;
5046                                 }
5047                                 SCTP_TCB_UNLOCK(stcb);
5048                         } else {
5049                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5050                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5051                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5052                                         SCTP_INP_WLOCK(inp);
5053                                         if (srto->srto_initial)
5054                                                 new_init = srto->srto_initial;
5055                                         else
5056                                                 new_init = inp->sctp_ep.initial_rto;
5057                                         if (srto->srto_max)
5058                                                 new_max = srto->srto_max;
5059                                         else
5060                                                 new_max = inp->sctp_ep.sctp_maxrto;
5061                                         if (srto->srto_min)
5062                                                 new_min = srto->srto_min;
5063                                         else
5064                                                 new_min = inp->sctp_ep.sctp_minrto;
5065                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5066                                                 inp->sctp_ep.initial_rto = new_init;
5067                                                 inp->sctp_ep.sctp_maxrto = new_max;
5068                                                 inp->sctp_ep.sctp_minrto = new_min;
5069                                         } else {
5070                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5071                                                 error = EINVAL;
5072                                         }
5073                                         SCTP_INP_WUNLOCK(inp);
5074                                 } else {
5075                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5076                                         error = EINVAL;
5077                                 }
5078                         }
5079                         break;
5080                 }
5081         case SCTP_ASSOCINFO:
5082                 {
5083                         struct sctp_assocparams *sasoc;
5084
5085                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5086                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5087                         if (sasoc->sasoc_cookie_life) {
5088                                 /* boundary check the cookie life */
5089                                 if (sasoc->sasoc_cookie_life < 1000)
5090                                         sasoc->sasoc_cookie_life = 1000;
5091                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5092                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5093                                 }
5094                         }
5095                         if (stcb) {
5096                                 if (sasoc->sasoc_asocmaxrxt)
5097                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5098                                 if (sasoc->sasoc_cookie_life) {
5099                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5100                                 }
5101                                 SCTP_TCB_UNLOCK(stcb);
5102                         } else {
5103                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5104                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5105                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5106                                         SCTP_INP_WLOCK(inp);
5107                                         if (sasoc->sasoc_asocmaxrxt)
5108                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5109                                         if (sasoc->sasoc_cookie_life) {
5110                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5111                                         }
5112                                         SCTP_INP_WUNLOCK(inp);
5113                                 } else {
5114                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5115                                         error = EINVAL;
5116                                 }
5117                         }
5118                         break;
5119                 }
5120         case SCTP_INITMSG:
5121                 {
5122                         struct sctp_initmsg *sinit;
5123
5124                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5125                         SCTP_INP_WLOCK(inp);
5126                         if (sinit->sinit_num_ostreams)
5127                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5128
5129                         if (sinit->sinit_max_instreams)
5130                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5131
5132                         if (sinit->sinit_max_attempts)
5133                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5134
5135                         if (sinit->sinit_max_init_timeo)
5136                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5137                         SCTP_INP_WUNLOCK(inp);
5138                         break;
5139                 }
5140         case SCTP_PRIMARY_ADDR:
5141                 {
5142                         struct sctp_setprim *spa;
5143                         struct sctp_nets *net;
5144
5145                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5146                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5147
5148                         net = NULL;
5149                         if (stcb) {
5150                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
5151                         } else {
5152                                 /*
5153                                  * We increment here since
5154                                  * sctp_findassociation_ep_addr() wil do a
5155                                  * decrement if it finds the stcb as long as
5156                                  * the locked tcb (last argument) is NOT a
5157                                  * TCB.. aka NULL.
5158                                  */
5159                                 SCTP_INP_INCR_REF(inp);
5160                                 stcb = sctp_findassociation_ep_addr(&inp,
5161                                     (struct sockaddr *)&spa->ssp_addr,
5162                                     &net, NULL, NULL);
5163                                 if (stcb == NULL) {
5164                                         SCTP_INP_DECR_REF(inp);
5165                                 }
5166                         }
5167
5168                         if ((stcb) && (net)) {
5169                                 if ((net != stcb->asoc.primary_destination) &&
5170                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5171                                         /* Ok we need to set it */
5172                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5173                                                 if ((stcb->asoc.alternate) &&
5174                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5175                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5176                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5177                                                         stcb->asoc.alternate = NULL;
5178                                                 }
5179                                         }
5180                                 }
5181                         } else {
5182                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5183                                 error = EINVAL;
5184                         }
5185                         if (stcb) {
5186                                 SCTP_TCB_UNLOCK(stcb);
5187                         }
5188                         break;
5189                 }
5190         case SCTP_SET_DYNAMIC_PRIMARY:
5191                 {
5192                         union sctp_sockstore *ss;
5193
5194                         error = priv_check(curthread,
5195                             PRIV_NETINET_RESERVEDPORT);
5196                         if (error)
5197                                 break;
5198
5199                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5200                         /* SUPER USER CHECK? */
5201                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5202                         break;
5203                 }
5204         case SCTP_SET_PEER_PRIMARY_ADDR:
5205                 {
5206                         struct sctp_setpeerprim *sspp;
5207
5208                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5209                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5210                         if (stcb != NULL) {
5211                                 struct sctp_ifa *ifa;
5212
5213                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5214                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5215                                 if (ifa == NULL) {
5216                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5217                                         error = EINVAL;
5218                                         goto out_of_it;
5219                                 }
5220                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5221                                         /*
5222                                          * Must validate the ifa found is in
5223                                          * our ep
5224                                          */
5225                                         struct sctp_laddr *laddr;
5226                                         int found = 0;
5227
5228                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5229                                                 if (laddr->ifa == NULL) {
5230                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5231                                                             __FUNCTION__);
5232                                                         continue;
5233                                                 }
5234                                                 if (laddr->ifa == ifa) {
5235                                                         found = 1;
5236                                                         break;
5237                                                 }
5238                                         }
5239                                         if (!found) {
5240                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5241                                                 error = EINVAL;
5242                                                 goto out_of_it;
5243                                         }
5244                                 }
5245                                 if (sctp_set_primary_ip_address_sa(stcb,
5246                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5247                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5248                                         error = EINVAL;
5249                                 }
5250                 out_of_it:
5251                                 SCTP_TCB_UNLOCK(stcb);
5252                         } else {
5253                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5254                                 error = EINVAL;
5255                         }
5256                         break;
5257                 }
5258         case SCTP_BINDX_ADD_ADDR:
5259                 {
5260                         struct sctp_getaddresses *addrs;
5261                         struct thread *td;
5262
5263                         td = (struct thread *)p;
5264                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5265                             optsize);
5266 #ifdef INET
5267                         if (addrs->addr->sa_family == AF_INET) {
5268                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5269                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5270                                         error = EINVAL;
5271                                         break;
5272                                 }
5273                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5274                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5275                                         break;
5276                                 }
5277                         } else
5278 #endif
5279 #ifdef INET6
5280                         if (addrs->addr->sa_family == AF_INET6) {
5281                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5282                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5283                                         error = EINVAL;
5284                                         break;
5285                                 }
5286                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5287                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5288                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5289                                         break;
5290                                 }
5291                         } else
5292 #endif
5293                         {
5294                                 error = EAFNOSUPPORT;
5295                                 break;
5296                         }
5297                         sctp_bindx_add_address(so, inp, addrs->addr,
5298                             addrs->sget_assoc_id, vrf_id,
5299                             &error, p);
5300                         break;
5301                 }
5302         case SCTP_BINDX_REM_ADDR:
5303                 {
5304                         struct sctp_getaddresses *addrs;
5305                         struct thread *td;
5306
5307                         td = (struct thread *)p;
5308
5309                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5310 #ifdef INET
5311                         if (addrs->addr->sa_family == AF_INET) {
5312                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5313                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5314                                         error = EINVAL;
5315                                         break;
5316                                 }
5317                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5318                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5319                                         break;
5320                                 }
5321                         } else
5322 #endif
5323 #ifdef INET6
5324                         if (addrs->addr->sa_family == AF_INET6) {
5325                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5326                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5327                                         error = EINVAL;
5328                                         break;
5329                                 }
5330                                 if (td != NULL &&
5331                                     (error = prison_local_ip6(td->td_ucred,
5332                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5333                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5334                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5335                                         break;
5336                                 }
5337                         } else
5338 #endif
5339                         {
5340                                 error = EAFNOSUPPORT;
5341                                 break;
5342                         }
5343                         sctp_bindx_delete_address(inp, addrs->addr,
5344                             addrs->sget_assoc_id, vrf_id,
5345                             &error);
5346                         break;
5347                 }
5348         case SCTP_EVENT:
5349                 {
5350                         struct sctp_event *event;
5351                         uint32_t event_type;
5352
5353                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5354                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5355                         switch (event->se_type) {
5356                         case SCTP_ASSOC_CHANGE:
5357                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5358                                 break;
5359                         case SCTP_PEER_ADDR_CHANGE:
5360                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5361                                 break;
5362                         case SCTP_REMOTE_ERROR:
5363                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5364                                 break;
5365                         case SCTP_SEND_FAILED:
5366                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5367                                 break;
5368                         case SCTP_SHUTDOWN_EVENT:
5369                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5370                                 break;
5371                         case SCTP_ADAPTATION_INDICATION:
5372                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5373                                 break;
5374                         case SCTP_PARTIAL_DELIVERY_EVENT:
5375                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5376                                 break;
5377                         case SCTP_AUTHENTICATION_EVENT:
5378                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5379                                 break;
5380                         case SCTP_STREAM_RESET_EVENT:
5381                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5382                                 break;
5383                         case SCTP_SENDER_DRY_EVENT:
5384                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5385                                 break;
5386                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5387                                 event_type = 0;
5388                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5389                                 error = ENOTSUP;
5390                                 break;
5391                         case SCTP_ASSOC_RESET_EVENT:
5392                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5393                                 break;
5394                         case SCTP_STREAM_CHANGE_EVENT:
5395                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5396                                 break;
5397                         case SCTP_SEND_FAILED_EVENT:
5398                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5399                                 break;
5400                         default:
5401                                 event_type = 0;
5402                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5403                                 error = EINVAL;
5404                                 break;
5405                         }
5406                         if (event_type > 0) {
5407                                 if (stcb) {
5408                                         if (event->se_on) {
5409                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5410                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5411                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5412                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5413                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5414                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5415                                                         }
5416                                                 }
5417                                         } else {
5418                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5419                                         }
5420                                         SCTP_TCB_UNLOCK(stcb);
5421                                 } else {
5422                                         /*
5423                                          * We don't want to send up a storm
5424                                          * of events, so return an error for
5425                                          * sender dry events
5426                                          */
5427                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5428                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5429                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5430                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5431                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5432                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5433                                                 error = ENOTSUP;
5434                                                 break;
5435                                         }
5436                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5437                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5438                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5439                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5440                                                 SCTP_INP_WLOCK(inp);
5441                                                 if (event->se_on) {
5442                                                         sctp_feature_on(inp, event_type);
5443                                                 } else {
5444                                                         sctp_feature_off(inp, event_type);
5445                                                 }
5446                                                 SCTP_INP_WUNLOCK(inp);
5447                                         }
5448                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5449                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5450                                                 SCTP_INP_RLOCK(inp);
5451                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5452                                                         SCTP_TCB_LOCK(stcb);
5453                                                         if (event->se_on) {
5454                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5455                                                         } else {
5456                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5457                                                         }
5458                                                         SCTP_TCB_UNLOCK(stcb);
5459                                                 }
5460                                                 SCTP_INP_RUNLOCK(inp);
5461                                         }
5462                                 }
5463                         }
5464                         break;
5465                 }
5466         case SCTP_RECVRCVINFO:
5467                 {
5468                         int *onoff;
5469
5470                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5471                         SCTP_INP_WLOCK(inp);
5472                         if (*onoff != 0) {
5473                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5474                         } else {
5475                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5476                         }
5477                         SCTP_INP_WUNLOCK(inp);
5478                         break;
5479                 }
5480         case SCTP_RECVNXTINFO:
5481                 {
5482                         int *onoff;
5483
5484                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5485                         SCTP_INP_WLOCK(inp);
5486                         if (*onoff != 0) {
5487                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5488                         } else {
5489                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5490                         }
5491                         SCTP_INP_WUNLOCK(inp);
5492                         break;
5493                 }
5494         case SCTP_DEFAULT_SNDINFO:
5495                 {
5496                         struct sctp_sndinfo *info;
5497                         uint16_t policy;
5498
5499                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5500                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5501
5502                         if (stcb) {
5503                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5504                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5505                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5506                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5507                                         stcb->asoc.def_send.sinfo_flags |= policy;
5508                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5509                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5510                                 } else {
5511                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5512                                         error = EINVAL;
5513                                 }
5514                                 SCTP_TCB_UNLOCK(stcb);
5515                         } else {
5516                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5517                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5518                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5519                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5520                                         SCTP_INP_WLOCK(inp);
5521                                         inp->def_send.sinfo_stream = info->snd_sid;
5522                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5523                                         inp->def_send.sinfo_flags = info->snd_flags;
5524                                         inp->def_send.sinfo_flags |= policy;
5525                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5526                                         inp->def_send.sinfo_context = info->snd_context;
5527                                         SCTP_INP_WUNLOCK(inp);
5528                                 }
5529                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5530                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5531                                         SCTP_INP_RLOCK(inp);
5532                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5533                                                 SCTP_TCB_LOCK(stcb);
5534                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5535                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5536                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5537                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5538                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5539                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5540                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5541                                                 }
5542                                                 SCTP_TCB_UNLOCK(stcb);
5543                                         }
5544                                         SCTP_INP_RUNLOCK(inp);
5545                                 }
5546                         }
5547                         break;
5548                 }
5549         case SCTP_DEFAULT_PRINFO:
5550                 {
5551                         struct sctp_default_prinfo *info;
5552
5553                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5554                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5555
5556                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5557                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5558                                 error = EINVAL;
5559                                 break;
5560                         }
5561                         if (stcb) {
5562                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5563                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5564                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5565                                 SCTP_TCB_UNLOCK(stcb);
5566                         } else {
5567                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5568                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5569                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5570                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5571                                         SCTP_INP_WLOCK(inp);
5572                                         inp->def_send.sinfo_flags &= 0xfff0;
5573                                         inp->def_send.sinfo_flags |= info->pr_policy;
5574                                         inp->def_send.sinfo_timetolive = info->pr_value;
5575                                         SCTP_INP_WUNLOCK(inp);
5576                                 }
5577                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5578                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5579                                         SCTP_INP_RLOCK(inp);
5580                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5581                                                 SCTP_TCB_LOCK(stcb);
5582                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5583                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5584                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5585                                                 SCTP_TCB_UNLOCK(stcb);
5586                                         }
5587                                         SCTP_INP_RUNLOCK(inp);
5588                                 }
5589                         }
5590                         break;
5591                 }
5592         case SCTP_PEER_ADDR_THLDS:
5593                 /* Applies to the specific association */
5594                 {
5595                         struct sctp_paddrthlds *thlds;
5596                         struct sctp_nets *net;
5597
5598                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5599                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5600                         net = NULL;
5601                         if (stcb) {
5602                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5603                         } else {
5604                                 /*
5605                                  * We increment here since
5606                                  * sctp_findassociation_ep_addr() wil do a
5607                                  * decrement if it finds the stcb as long as
5608                                  * the locked tcb (last argument) is NOT a
5609                                  * TCB.. aka NULL.
5610                                  */
5611                                 SCTP_INP_INCR_REF(inp);
5612                                 stcb = sctp_findassociation_ep_addr(&inp,
5613                                     (struct sockaddr *)&thlds->spt_assoc_id,
5614                                     &net, NULL, NULL);
5615                                 if (stcb == NULL) {
5616                                         SCTP_INP_DECR_REF(inp);
5617                                 }
5618                         }
5619                         if (stcb && (net == NULL)) {
5620                                 struct sockaddr *sa;
5621
5622                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5623 #ifdef INET
5624                                 if (sa->sa_family == AF_INET) {
5625
5626                                         struct sockaddr_in *sin;
5627
5628                                         sin = (struct sockaddr_in *)sa;
5629                                         if (sin->sin_addr.s_addr) {
5630                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5631                                                 SCTP_TCB_UNLOCK(stcb);
5632                                                 error = EINVAL;
5633                                                 break;
5634                                         }
5635                                 } else
5636 #endif
5637 #ifdef INET6
5638                                 if (sa->sa_family == AF_INET6) {
5639                                         struct sockaddr_in6 *sin6;
5640
5641                                         sin6 = (struct sockaddr_in6 *)sa;
5642                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5643                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5644                                                 SCTP_TCB_UNLOCK(stcb);
5645                                                 error = EINVAL;
5646                                                 break;
5647                                         }
5648                                 } else
5649 #endif
5650                                 {
5651                                         error = EAFNOSUPPORT;
5652                                         SCTP_TCB_UNLOCK(stcb);
5653                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5654                                         break;
5655                                 }
5656                         }
5657                         if (stcb) {
5658                                 if (net) {
5659                                         if (net->dest_state & SCTP_ADDR_PF) {
5660                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5661                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5662                                                         net->dest_state &= ~SCTP_ADDR_PF;
5663                                                 }
5664                                         } else {
5665                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5666                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5667                                                         net->dest_state |= SCTP_ADDR_PF;
5668                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5669                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5670                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5671                                                 }
5672                                         }
5673                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5674                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5675                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5676                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5677                                                 }
5678                                         } else {
5679                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5680                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5681                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5682                                                 }
5683                                         }
5684                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5685                                         net->pf_threshold = thlds->spt_pathpfthld;
5686                                 } else {
5687                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5688                                                 if (net->dest_state & SCTP_ADDR_PF) {
5689                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5690                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5691                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5692                                                         }
5693                                                 } else {
5694                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5695                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5696                                                                 net->dest_state |= SCTP_ADDR_PF;
5697                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5698                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5699                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5700                                                         }
5701                                                 }
5702                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5703                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5704                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5705                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5706                                                         }
5707                                                 } else {
5708                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5709                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5710                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5711                                                         }
5712                                                 }
5713                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5714                                                 net->pf_threshold = thlds->spt_pathpfthld;
5715                                         }
5716                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5717                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5718                                 }
5719                         } else {
5720                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5721                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5722                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5723                                         SCTP_INP_WLOCK(inp);
5724                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5725                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5726                                         SCTP_INP_WUNLOCK(inp);
5727                                 } else {
5728                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5729                                         error = EINVAL;
5730                                 }
5731                         }
5732                         break;
5733                 }
5734         case SCTP_REMOTE_UDP_ENCAPS_PORT:
5735                 {
5736                         struct sctp_udpencaps *encaps;
5737                         struct sctp_nets *net;
5738
5739                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
5740                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
5741                         if (stcb) {
5742                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
5743                         } else {
5744                                 /*
5745                                  * We increment here since
5746                                  * sctp_findassociation_ep_addr() wil do a
5747                                  * decrement if it finds the stcb as long as
5748                                  * the locked tcb (last argument) is NOT a
5749                                  * TCB.. aka NULL.
5750                                  */
5751                                 net = NULL;
5752                                 SCTP_INP_INCR_REF(inp);
5753                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
5754                                 if (stcb == NULL) {
5755                                         SCTP_INP_DECR_REF(inp);
5756                                 }
5757                         }
5758                         if (stcb && (net == NULL)) {
5759                                 struct sockaddr *sa;
5760
5761                                 sa = (struct sockaddr *)&encaps->sue_address;
5762 #ifdef INET
5763                                 if (sa->sa_family == AF_INET) {
5764
5765                                         struct sockaddr_in *sin;
5766
5767                                         sin = (struct sockaddr_in *)sa;
5768                                         if (sin->sin_addr.s_addr) {
5769                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5770                                                 SCTP_TCB_UNLOCK(stcb);
5771                                                 error = EINVAL;
5772                                                 break;
5773                                         }
5774                                 } else
5775 #endif
5776 #ifdef INET6
5777                                 if (sa->sa_family == AF_INET6) {
5778                                         struct sockaddr_in6 *sin6;
5779
5780                                         sin6 = (struct sockaddr_in6 *)sa;
5781                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5782                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5783                                                 SCTP_TCB_UNLOCK(stcb);
5784                                                 error = EINVAL;
5785                                                 break;
5786                                         }
5787                                 } else
5788 #endif
5789                                 {
5790                                         error = EAFNOSUPPORT;
5791                                         SCTP_TCB_UNLOCK(stcb);
5792                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5793                                         break;
5794                                 }
5795                         }
5796                         if (stcb) {
5797                                 if (net) {
5798                                         net->port = encaps->sue_port;
5799                                 } else {
5800                                         stcb->asoc.port = encaps->sue_port;
5801                                 }
5802                                 SCTP_TCB_UNLOCK(stcb);
5803                         } else {
5804                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5805                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5806                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
5807                                         SCTP_INP_WLOCK(inp);
5808                                         inp->sctp_ep.port = encaps->sue_port;
5809                                         SCTP_INP_WUNLOCK(inp);
5810                                 } else {
5811                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5812                                         error = EINVAL;
5813                                 }
5814                         }
5815                         break;
5816                 }
5817         default:
5818                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5819                 error = ENOPROTOOPT;
5820                 break;
5821         }                       /* end switch (opt) */
5822         return (error);
5823 }
5824
5825 int
5826 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5827 {
5828         void *optval = NULL;
5829         size_t optsize = 0;
5830         void *p;
5831         int error = 0;
5832
5833         if (sopt->sopt_level != IPPROTO_SCTP) {
5834                 /* wrong proto level... send back up to IP */
5835 #ifdef INET6
5836                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5837                         error = ip6_ctloutput(so, sopt);
5838 #endif                          /* INET6 */
5839 #if defined(INET) && defined (INET6)
5840                 else
5841 #endif
5842 #ifdef INET
5843                         error = ip_ctloutput(so, sopt);
5844 #endif
5845                 return (error);
5846         }
5847         optsize = sopt->sopt_valsize;
5848         if (optsize) {
5849                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5850                 if (optval == NULL) {
5851                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5852                         return (ENOBUFS);
5853                 }
5854                 error = sooptcopyin(sopt, optval, optsize, optsize);
5855                 if (error) {
5856                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5857                         goto out;
5858                 }
5859         }
5860         p = (void *)sopt->sopt_td;
5861         if (sopt->sopt_dir == SOPT_SET) {
5862                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5863         } else if (sopt->sopt_dir == SOPT_GET) {
5864                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5865         } else {
5866                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5867                 error = EINVAL;
5868         }
5869         if ((error == 0) && (optval != NULL)) {
5870                 error = sooptcopyout(sopt, optval, optsize);
5871                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5872         } else if (optval != NULL) {
5873                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5874         }
5875 out:
5876         return (error);
5877 }
5878
5879 #ifdef INET
5880 static int
5881 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5882 {
5883         int error = 0;
5884         int create_lock_on = 0;
5885         uint32_t vrf_id;
5886         struct sctp_inpcb *inp;
5887         struct sctp_tcb *stcb = NULL;
5888
5889         inp = (struct sctp_inpcb *)so->so_pcb;
5890         if (inp == NULL) {
5891                 /* I made the same as TCP since we are not setup? */
5892                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5893                 return (ECONNRESET);
5894         }
5895         if (addr == NULL) {
5896                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5897                 return EINVAL;
5898         }
5899         switch (addr->sa_family) {
5900 #ifdef INET6
5901         case AF_INET6:
5902                 {
5903                         struct sockaddr_in6 *sin6p;
5904
5905                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5906                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5907                                 return (EINVAL);
5908                         }
5909                         sin6p = (struct sockaddr_in6 *)addr;
5910                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5911                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5912                                 return (error);
5913                         }
5914                         break;
5915                 }
5916 #endif
5917 #ifdef INET
5918         case AF_INET:
5919                 {
5920                         struct sockaddr_in *sinp;
5921
5922                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5924                                 return (EINVAL);
5925                         }
5926                         sinp = (struct sockaddr_in *)addr;
5927                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5929                                 return (error);
5930                         }
5931                         break;
5932                 }
5933 #endif
5934         default:
5935                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5936                 return (EAFNOSUPPORT);
5937         }
5938         SCTP_INP_INCR_REF(inp);
5939         SCTP_ASOC_CREATE_LOCK(inp);
5940         create_lock_on = 1;
5941
5942
5943         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5944             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5945                 /* Should I really unlock ? */
5946                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5947                 error = EFAULT;
5948                 goto out_now;
5949         }
5950 #ifdef INET6
5951         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5952             (addr->sa_family == AF_INET6)) {
5953                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5954                 error = EINVAL;
5955                 goto out_now;
5956         }
5957 #endif                          /* INET6 */
5958         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5959             SCTP_PCB_FLAGS_UNBOUND) {
5960                 /* Bind a ephemeral port */
5961                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5962                 if (error) {
5963                         goto out_now;
5964                 }
5965         }
5966         /* Now do we connect? */
5967         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5968             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5969                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5970                 error = EINVAL;
5971                 goto out_now;
5972         }
5973         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5974             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5975                 /* We are already connected AND the TCP model */
5976                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5977                 error = EADDRINUSE;
5978                 goto out_now;
5979         }
5980         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
5981                 SCTP_INP_RLOCK(inp);
5982                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
5983                 SCTP_INP_RUNLOCK(inp);
5984         } else {
5985                 /*
5986                  * We increment here since sctp_findassociation_ep_addr()
5987                  * will do a decrement if it finds the stcb as long as the
5988                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
5989                  */
5990                 SCTP_INP_INCR_REF(inp);
5991                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
5992                 if (stcb == NULL) {
5993                         SCTP_INP_DECR_REF(inp);
5994                 } else {
5995                         SCTP_TCB_UNLOCK(stcb);
5996                 }
5997         }
5998         if (stcb != NULL) {
5999                 /* Already have or am bring up an association */
6000                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6001                 error = EALREADY;
6002                 goto out_now;
6003         }
6004         vrf_id = inp->def_vrf_id;
6005         /* We are GOOD to go */
6006         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6007         if (stcb == NULL) {
6008                 /* Gak! no memory */
6009                 goto out_now;
6010         }
6011         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6012                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6013                 /* Set the connected flag so we can queue data */
6014                 soisconnecting(so);
6015         }
6016         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6017         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6018
6019         /* initialize authentication parameters for the assoc */
6020         sctp_initialize_auth_params(inp, stcb);
6021
6022         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6023         SCTP_TCB_UNLOCK(stcb);
6024 out_now:
6025         if (create_lock_on) {
6026                 SCTP_ASOC_CREATE_UNLOCK(inp);
6027         }
6028         SCTP_INP_DECR_REF(inp);
6029         return (error);
6030 }
6031
6032 #endif
6033
6034 int
6035 sctp_listen(struct socket *so, int backlog, struct thread *p)
6036 {
6037         /*
6038          * Note this module depends on the protocol processing being called
6039          * AFTER any socket level flags and backlog are applied to the
6040          * socket. The traditional way that the socket flags are applied is
6041          * AFTER protocol processing. We have made a change to the
6042          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6043          * place if the socket API for SCTP is to work properly.
6044          */
6045
6046         int error = 0;
6047         struct sctp_inpcb *inp;
6048
6049         inp = (struct sctp_inpcb *)so->so_pcb;
6050         if (inp == NULL) {
6051                 /* I made the same as TCP since we are not setup? */
6052                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6053                 return (ECONNRESET);
6054         }
6055         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6056                 /* See if we have a listener */
6057                 struct sctp_inpcb *tinp;
6058                 union sctp_sockstore store, *sp;
6059
6060                 sp = &store;
6061                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6062                         /* not bound all */
6063                         struct sctp_laddr *laddr;
6064
6065                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6066                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6067                                 switch (sp->sa.sa_family) {
6068 #ifdef INET
6069                                 case AF_INET:
6070                                         sp->sin.sin_port = inp->sctp_lport;
6071                                         break;
6072 #endif
6073 #ifdef INET6
6074                                 case AF_INET6:
6075                                         sp->sin6.sin6_port = inp->sctp_lport;
6076                                         break;
6077 #endif
6078                                 default:
6079                                         break;
6080                                 }
6081                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6082                                 if (tinp && (tinp != inp) &&
6083                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6084                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6085                                     (tinp->sctp_socket->so_qlimit)) {
6086                                         /*
6087                                          * we have a listener already and
6088                                          * its not this inp.
6089                                          */
6090                                         SCTP_INP_DECR_REF(tinp);
6091                                         return (EADDRINUSE);
6092                                 } else if (tinp) {
6093                                         SCTP_INP_DECR_REF(tinp);
6094                                 }
6095                         }
6096                 } else {
6097                         /* Setup a local addr bound all */
6098                         memset(&store, 0, sizeof(store));
6099                         switch (sp->sa.sa_family) {
6100 #ifdef INET
6101                         case AF_INET:
6102                                 store.sin.sin_port = inp->sctp_lport;
6103                                 break;
6104 #endif
6105 #ifdef INET6
6106                         case AF_INET6:
6107                                 sp->sin6.sin6_port = inp->sctp_lport;
6108                                 break;
6109 #endif
6110                         default:
6111                                 break;
6112                         }
6113 #ifdef INET6
6114                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6115                                 store.sa.sa_family = AF_INET6;
6116                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6117                         }
6118 #endif
6119 #ifdef INET
6120                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6121                                 store.sa.sa_family = AF_INET;
6122                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6123                         }
6124 #endif
6125                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6126                         if (tinp && (tinp != inp) &&
6127                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6128                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6129                             (tinp->sctp_socket->so_qlimit)) {
6130                                 /*
6131                                  * we have a listener already and its not
6132                                  * this inp.
6133                                  */
6134                                 SCTP_INP_DECR_REF(tinp);
6135                                 return (EADDRINUSE);
6136                         } else if (tinp) {
6137                                 SCTP_INP_DECR_REF(inp);
6138                         }
6139                 }
6140         }
6141         SCTP_INP_RLOCK(inp);
6142 #ifdef SCTP_LOCK_LOGGING
6143         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6144                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6145         }
6146 #endif
6147         SOCK_LOCK(so);
6148         error = solisten_proto_check(so);
6149         if (error) {
6150                 SOCK_UNLOCK(so);
6151                 SCTP_INP_RUNLOCK(inp);
6152                 return (error);
6153         }
6154         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6155             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6156                 /*
6157                  * The unlucky case - We are in the tcp pool with this guy.
6158                  * - Someone else is in the main inp slot. - We must move
6159                  * this guy (the listener) to the main slot - We must then
6160                  * move the guy that was listener to the TCP Pool.
6161                  */
6162                 if (sctp_swap_inpcb_for_listen(inp)) {
6163                         goto in_use;
6164                 }
6165         }
6166         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6167             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6168                 /* We are already connected AND the TCP model */
6169 in_use:
6170                 SCTP_INP_RUNLOCK(inp);
6171                 SOCK_UNLOCK(so);
6172                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6173                 return (EADDRINUSE);
6174         }
6175         SCTP_INP_RUNLOCK(inp);
6176         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6177                 /* We must do a bind. */
6178                 SOCK_UNLOCK(so);
6179                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6180                         /* bind error, probably perm */
6181                         return (error);
6182                 }
6183                 SOCK_LOCK(so);
6184         }
6185         /* It appears for 7.0 and on, we must always call this. */
6186         solisten_proto(so, backlog);
6187         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6188                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6189                 so->so_options &= ~SO_ACCEPTCONN;
6190         }
6191         if (backlog == 0) {
6192                 /* turning off listen */
6193                 so->so_options &= ~SO_ACCEPTCONN;
6194         }
6195         SOCK_UNLOCK(so);
6196         return (error);
6197 }
6198
6199 static int sctp_defered_wakeup_cnt = 0;
6200
6201 int
6202 sctp_accept(struct socket *so, struct sockaddr **addr)
6203 {
6204         struct sctp_tcb *stcb;
6205         struct sctp_inpcb *inp;
6206         union sctp_sockstore store;
6207
6208 #ifdef INET6
6209         int error;
6210
6211 #endif
6212         inp = (struct sctp_inpcb *)so->so_pcb;
6213
6214         if (inp == NULL) {
6215                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6216                 return (ECONNRESET);
6217         }
6218         SCTP_INP_RLOCK(inp);
6219         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6220                 SCTP_INP_RUNLOCK(inp);
6221                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6222                 return (EOPNOTSUPP);
6223         }
6224         if (so->so_state & SS_ISDISCONNECTED) {
6225                 SCTP_INP_RUNLOCK(inp);
6226                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6227                 return (ECONNABORTED);
6228         }
6229         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6230         if (stcb == NULL) {
6231                 SCTP_INP_RUNLOCK(inp);
6232                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6233                 return (ECONNRESET);
6234         }
6235         SCTP_TCB_LOCK(stcb);
6236         SCTP_INP_RUNLOCK(inp);
6237         store = stcb->asoc.primary_destination->ro._l_addr;
6238         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6239         SCTP_TCB_UNLOCK(stcb);
6240         switch (store.sa.sa_family) {
6241 #ifdef INET
6242         case AF_INET:
6243                 {
6244                         struct sockaddr_in *sin;
6245
6246                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6247                         if (sin == NULL)
6248                                 return (ENOMEM);
6249                         sin->sin_family = AF_INET;
6250                         sin->sin_len = sizeof(*sin);
6251                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
6252                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
6253                         *addr = (struct sockaddr *)sin;
6254                         break;
6255                 }
6256 #endif
6257 #ifdef INET6
6258         case AF_INET6:
6259                 {
6260                         struct sockaddr_in6 *sin6;
6261
6262                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
6263                         if (sin6 == NULL)
6264                                 return (ENOMEM);
6265                         sin6->sin6_family = AF_INET6;
6266                         sin6->sin6_len = sizeof(*sin6);
6267                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
6268
6269                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
6270                         if ((error = sa6_recoverscope(sin6)) != 0) {
6271                                 SCTP_FREE_SONAME(sin6);
6272                                 return (error);
6273                         }
6274                         *addr = (struct sockaddr *)sin6;
6275                         break;
6276                 }
6277 #endif
6278         default:
6279                 /* TSNH */
6280                 break;
6281         }
6282         /* Wake any delayed sleep action */
6283         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6284                 SCTP_INP_WLOCK(inp);
6285                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6286                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6287                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6288                         SCTP_INP_WUNLOCK(inp);
6289                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6290                         if (sowriteable(inp->sctp_socket)) {
6291                                 sowwakeup_locked(inp->sctp_socket);
6292                         } else {
6293                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6294                         }
6295                         SCTP_INP_WLOCK(inp);
6296                 }
6297                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6298                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6299                         SCTP_INP_WUNLOCK(inp);
6300                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6301                         if (soreadable(inp->sctp_socket)) {
6302                                 sctp_defered_wakeup_cnt++;
6303                                 sorwakeup_locked(inp->sctp_socket);
6304                         } else {
6305                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6306                         }
6307                         SCTP_INP_WLOCK(inp);
6308                 }
6309                 SCTP_INP_WUNLOCK(inp);
6310         }
6311         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6312                 SCTP_TCB_LOCK(stcb);
6313                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6314         }
6315         return (0);
6316 }
6317
6318 #ifdef INET
6319 int
6320 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6321 {
6322         struct sockaddr_in *sin;
6323         uint32_t vrf_id;
6324         struct sctp_inpcb *inp;
6325         struct sctp_ifa *sctp_ifa;
6326
6327         /*
6328          * Do the malloc first in case it blocks.
6329          */
6330         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6331         if (sin == NULL)
6332                 return (ENOMEM);
6333         sin->sin_family = AF_INET;
6334         sin->sin_len = sizeof(*sin);
6335         inp = (struct sctp_inpcb *)so->so_pcb;
6336         if (!inp) {
6337                 SCTP_FREE_SONAME(sin);
6338                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6339                 return (ECONNRESET);
6340         }
6341         SCTP_INP_RLOCK(inp);
6342         sin->sin_port = inp->sctp_lport;
6343         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6344                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6345                         struct sctp_tcb *stcb;
6346                         struct sockaddr_in *sin_a;
6347                         struct sctp_nets *net;
6348                         int fnd;
6349
6350                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6351                         if (stcb == NULL) {
6352                                 goto notConn;
6353                         }
6354                         fnd = 0;
6355                         sin_a = NULL;
6356                         SCTP_TCB_LOCK(stcb);
6357                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6358                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6359                                 if (sin_a == NULL)
6360                                         /* this will make coverity happy */
6361                                         continue;
6362
6363                                 if (sin_a->sin_family == AF_INET) {
6364                                         fnd = 1;
6365                                         break;
6366                                 }
6367                         }
6368                         if ((!fnd) || (sin_a == NULL)) {
6369                                 /* punt */
6370                                 SCTP_TCB_UNLOCK(stcb);
6371                                 goto notConn;
6372                         }
6373                         vrf_id = inp->def_vrf_id;
6374                         sctp_ifa = sctp_source_address_selection(inp,
6375                             stcb,
6376                             (sctp_route_t *) & net->ro,
6377                             net, 0, vrf_id);
6378                         if (sctp_ifa) {
6379                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6380                                 sctp_free_ifa(sctp_ifa);
6381                         }
6382                         SCTP_TCB_UNLOCK(stcb);
6383                 } else {
6384                         /* For the bound all case you get back 0 */
6385         notConn:
6386                         sin->sin_addr.s_addr = 0;
6387                 }
6388
6389         } else {
6390                 /* Take the first IPv4 address in the list */
6391                 struct sctp_laddr *laddr;
6392                 int fnd = 0;
6393
6394                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6395                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6396                                 struct sockaddr_in *sin_a;
6397
6398                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6399                                 sin->sin_addr = sin_a->sin_addr;
6400                                 fnd = 1;
6401                                 break;
6402                         }
6403                 }
6404                 if (!fnd) {
6405                         SCTP_FREE_SONAME(sin);
6406                         SCTP_INP_RUNLOCK(inp);
6407                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6408                         return (ENOENT);
6409                 }
6410         }
6411         SCTP_INP_RUNLOCK(inp);
6412         (*addr) = (struct sockaddr *)sin;
6413         return (0);
6414 }
6415
6416 int
6417 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6418 {
6419         struct sockaddr_in *sin;
6420         int fnd;
6421         struct sockaddr_in *sin_a;
6422         struct sctp_inpcb *inp;
6423         struct sctp_tcb *stcb;
6424         struct sctp_nets *net;
6425
6426         /* Do the malloc first in case it blocks. */
6427         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6428         if (sin == NULL)
6429                 return (ENOMEM);
6430         sin->sin_family = AF_INET;
6431         sin->sin_len = sizeof(*sin);
6432
6433         inp = (struct sctp_inpcb *)so->so_pcb;
6434         if ((inp == NULL) ||
6435             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6436                 /* UDP type and listeners will drop out here */
6437                 SCTP_FREE_SONAME(sin);
6438                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6439                 return (ENOTCONN);
6440         }
6441         SCTP_INP_RLOCK(inp);
6442         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6443         if (stcb) {
6444                 SCTP_TCB_LOCK(stcb);
6445         }
6446         SCTP_INP_RUNLOCK(inp);
6447         if (stcb == NULL) {
6448                 SCTP_FREE_SONAME(sin);
6449                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6450                 return (ECONNRESET);
6451         }
6452         fnd = 0;
6453         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6454                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6455                 if (sin_a->sin_family == AF_INET) {
6456                         fnd = 1;
6457                         sin->sin_port = stcb->rport;
6458                         sin->sin_addr = sin_a->sin_addr;
6459                         break;
6460                 }
6461         }
6462         SCTP_TCB_UNLOCK(stcb);
6463         if (!fnd) {
6464                 /* No IPv4 address */
6465                 SCTP_FREE_SONAME(sin);
6466                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6467                 return (ENOENT);
6468         }
6469         (*addr) = (struct sockaddr *)sin;
6470         return (0);
6471 }
6472
6473 struct pr_usrreqs sctp_usrreqs = {
6474         .pru_abort = sctp_abort,
6475         .pru_accept = sctp_accept,
6476         .pru_attach = sctp_attach,
6477         .pru_bind = sctp_bind,
6478         .pru_connect = sctp_connect,
6479         .pru_control = in_control,
6480         .pru_close = sctp_close,
6481         .pru_detach = sctp_close,
6482         .pru_sopoll = sopoll_generic,
6483         .pru_flush = sctp_flush,
6484         .pru_disconnect = sctp_disconnect,
6485         .pru_listen = sctp_listen,
6486         .pru_peeraddr = sctp_peeraddr,
6487         .pru_send = sctp_sendm,
6488         .pru_shutdown = sctp_shutdown,
6489         .pru_sockaddr = sctp_ingetaddr,
6490         .pru_sosend = sctp_sosend,
6491         .pru_soreceive = sctp_soreceive
6492 };
6493
6494 #endif