sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                                 chk->sent = SCTP_DATAGRAM_RESEND;
 129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 130                                 chk->rec.data.doing_fast_retransmit = 0;
 131                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 132                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 133                                             chk->whoTo->flight_size,
 134                                             chk->book_size,
 135                                             (uintptr_t) chk->whoTo,
 136                                             chk->rec.data.TSN_seq);
 137                                 }
 138                                 /* Clear any time so NO RTT is being done */
 139                                 chk->do_rtt = 0;
 140                         }
 141                 }
 142         }
 143 }
 144
 145 #ifdef INET
 146 static void
 147 sctp_notify_mbuf(struct sctp_inpcb *inp,
 148     struct sctp_tcb *stcb,
 149     struct sctp_nets *net,
 150     struct ip *ip,
 151     struct sctphdr *sh)
 152 {
 153         struct icmp *icmph;
 154         int totsz, tmr_stopped = 0;
 155         uint16_t nxtsz;
 156
 157         /* protection */
 158         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 159             (ip == NULL) || (sh == NULL)) {
 160                 if (stcb != NULL) {
 161                         SCTP_TCB_UNLOCK(stcb);
 162                 }
 163                 return;
 164         }
 165         /* First job is to verify the vtag matches what I would send */
 166         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 167                 SCTP_TCB_UNLOCK(stcb);
 168                 return;
 169         }
 170         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 171             sizeof(struct ip)));
 172         if (icmph->icmp_type != ICMP_UNREACH) {
 173                 /* We only care about unreachable */
 174                 SCTP_TCB_UNLOCK(stcb);
 175                 return;
 176         }
 177         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 178                 /* not a unreachable message due to frag. */
 179                 SCTP_TCB_UNLOCK(stcb);
 180                 return;
 181         }
 182         totsz = ntohs(ip->ip_len);
 183
 184         nxtsz = ntohs(icmph->icmp_nextmtu);
 185         if (nxtsz == 0) {
 186                 /*
 187                  * old type router that does not tell us what the next size
 188                  * mtu is. Rats we will have to guess (in a educated fashion
 189                  * of course)
 190                  */
 191                 nxtsz = sctp_get_prev_mtu(totsz);
 192         }
 193         /* Stop any PMTU timer */
 194         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 195                 tmr_stopped = 1;
 196                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 197                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 198         }
 199         /* Adjust destination size limit */
 200         if (net->mtu > nxtsz) {
 201                 net->mtu = nxtsz;
 202                 if (net->port) {
 203                         net->mtu -= sizeof(struct udphdr);
 204                 }
 205         }
 206         /* now what about the ep? */
 207         if (stcb->asoc.smallest_mtu > nxtsz) {
 208                 sctp_pathmtu_adjustment(stcb, nxtsz);
 209         }
 210         if (tmr_stopped)
 211                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 212
 213         SCTP_TCB_UNLOCK(stcb);
 214 }
 215
 216 void
 217 sctp_notify(struct sctp_inpcb *inp,
 218     struct ip *ip,
 219     struct sctphdr *sh,
 220     struct sockaddr *to,
 221     struct sctp_tcb *stcb,
 222     struct sctp_nets *net)
 223 {
 224 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 225         struct socket *so;
 226
 227 #endif
 228         struct icmp *icmph;
 229
 230         /* protection */
 231         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 232             (sh == NULL) || (to == NULL)) {
 233                 if (stcb)
 234                         SCTP_TCB_UNLOCK(stcb);
 235                 return;
 236         }
 237         /* First job is to verify the vtag matches what I would send */
 238         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 239                 SCTP_TCB_UNLOCK(stcb);
 240                 return;
 241         }
 242         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 243             sizeof(struct ip)));
 244         if (icmph->icmp_type != ICMP_UNREACH) {
 245                 /* We only care about unreachable */
 246                 SCTP_TCB_UNLOCK(stcb);
 247                 return;
 248         }
 249         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 250             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 251             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 252             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 253             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 254             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 255             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 256             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 257
 258                 /*
 259                  * Hmm reachablity problems we must examine closely. If its
 260                  * not reachable, we may have lost a network. Or if there is
 261                  * NO protocol at the other end named SCTP. well we consider
 262                  * it a OOTB abort.
 263                  */
 264                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 265                         /* Ok that destination is NOT reachable */
 266                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 267                         net->dest_state &= ~SCTP_ADDR_PF;
 268                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 269                             stcb, 0,
 270                             (void *)net, SCTP_SO_NOT_LOCKED);
 271                 }
 272                 SCTP_TCB_UNLOCK(stcb);
 273         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 274             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 275                 /*
 276                  * Here the peer is either playing tricks on us, including
 277                  * an address that belongs to someone who does not support
 278                  * SCTP OR was a userland implementation that shutdown and
 279                  * now is dead. In either case treat it like a OOTB abort
 280                  * with no TCB
 281                  */
 282                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 283 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 284                 so = SCTP_INP_SO(inp);
 285                 atomic_add_int(&stcb->asoc.refcnt, 1);
 286                 SCTP_TCB_UNLOCK(stcb);
 287                 SCTP_SOCKET_LOCK(so, 1);
 288                 SCTP_TCB_LOCK(stcb);
 289                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 290 #endif
 291                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 292                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 293 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 294                 SCTP_SOCKET_UNLOCK(so, 1);
 295                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 296 #endif
 297                 /* no need to unlock here, since the TCB is gone */
 298         } else {
 299                 SCTP_TCB_UNLOCK(stcb);
 300         }
 301 }
 302
 303 #endif
 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 *)&to,
 349                     (struct sockaddr *)&from,
 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[1]),
 401             sintosa(&addrs[0]),
 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;
 551
 552         inp = (struct sctp_inpcb *)so->so_pcb;
 553         if (inp == NULL) {
 554                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 555                 return (EINVAL);
 556         }
 557         if (addr != NULL) {
 558                 if ((addr->sa_family != AF_INET) ||
 559                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 560                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 561                         return (EINVAL);
 562                 }
 563         }
 564         return (sctp_inpcb_bind(so, addr, NULL, p));
 565 }
 566
 567 #endif
 568 void
 569 sctp_close(struct socket *so)
 570 {
 571         struct sctp_inpcb *inp;
 572         uint32_t flags;
 573
 574         inp = (struct sctp_inpcb *)so->so_pcb;
 575         if (inp == NULL)
 576                 return;
 577
 578         /*
 579          * Inform all the lower layer assoc that we are done.
 580          */
 581 sctp_must_try_again:
 582         flags = inp->sctp_flags;
 583 #ifdef SCTP_LOG_CLOSING
 584         sctp_log_closing(inp, NULL, 17);
 585 #endif
 586         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 587             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 588                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 589                     (so->so_rcv.sb_cc > 0)) {
 590 #ifdef SCTP_LOG_CLOSING
 591                         sctp_log_closing(inp, NULL, 13);
 592 #endif
 593                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 594                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 595                 } else {
 596 #ifdef SCTP_LOG_CLOSING
 597                         sctp_log_closing(inp, NULL, 14);
 598 #endif
 599                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 600                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 601                 }
 602                 /*
 603                  * The socket is now detached, no matter what the state of
 604                  * the SCTP association.
 605                  */
 606                 SOCK_LOCK(so);
 607                 SCTP_SB_CLEAR(so->so_snd);
 608                 /*
 609                  * same for the rcv ones, they are only here for the
 610                  * accounting/select.
 611                  */
 612                 SCTP_SB_CLEAR(so->so_rcv);
 613
 614                 /* Now null out the reference, we are completely detached. */
 615                 so->so_pcb = NULL;
 616                 SOCK_UNLOCK(so);
 617         } else {
 618                 flags = inp->sctp_flags;
 619                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 620                         goto sctp_must_try_again;
 621                 }
 622         }
 623         return;
 624 }
 625
 626
 627 int
 628 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 629     struct mbuf *control, struct thread *p);
 630
 631
 632 int
 633 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 634     struct mbuf *control, struct thread *p)
 635 {
 636         struct sctp_inpcb *inp;
 637         int error;
 638
 639         inp = (struct sctp_inpcb *)so->so_pcb;
 640         if (inp == NULL) {
 641                 if (control) {
 642                         sctp_m_freem(control);
 643                         control = NULL;
 644                 }
 645                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 646                 sctp_m_freem(m);
 647                 return (EINVAL);
 648         }
 649         /* Got to have an to address if we are NOT a connected socket */
 650         if ((addr == NULL) &&
 651             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 652             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 653                 goto connected_type;
 654         } else if (addr == NULL) {
 655                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 656                 error = EDESTADDRREQ;
 657                 sctp_m_freem(m);
 658                 if (control) {
 659                         sctp_m_freem(control);
 660                         control = NULL;
 661                 }
 662                 return (error);
 663         }
 664 #ifdef INET6
 665         if (addr->sa_family != AF_INET) {
 666                 /* must be a v4 address! */
 667                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 668                 sctp_m_freem(m);
 669                 if (control) {
 670                         sctp_m_freem(control);
 671                         control = NULL;
 672                 }
 673                 error = EDESTADDRREQ;
 674                 return (error);
 675         }
 676 #endif                          /* INET6 */
 677 connected_type:
 678         /* now what about control */
 679         if (control) {
 680                 if (inp->control) {
 681                         SCTP_PRINTF("huh? control set?\n");
 682                         sctp_m_freem(inp->control);
 683                         inp->control = NULL;
 684                 }
 685                 inp->control = control;
 686         }
 687         /* Place the data */
 688         if (inp->pkt) {
 689                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 690                 inp->pkt_last = m;
 691         } else {
 692                 inp->pkt_last = inp->pkt = m;
 693         }
 694         if (
 695         /* FreeBSD uses a flag passed */
 696             ((flags & PRUS_MORETOCOME) == 0)
 697             ) {
 698                 /*
 699                  * note with the current version this code will only be used
 700                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 701                  * re-defining sosend to use the sctp_sosend. One can
 702                  * optionally switch back to this code (by changing back the
 703                  * definitions) but this is not advisable. This code is used
 704                  * by FreeBSD when sending a file with sendfile() though.
 705                  */
 706                 int ret;
 707
 708                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 709                 inp->pkt = NULL;
 710                 inp->control = NULL;
 711                 return (ret);
 712         } else {
 713                 return (0);
 714         }
 715 }
 716
 717 int
 718 sctp_disconnect(struct socket *so)
 719 {
 720         struct sctp_inpcb *inp;
 721
 722         inp = (struct sctp_inpcb *)so->so_pcb;
 723         if (inp == NULL) {
 724                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 725                 return (ENOTCONN);
 726         }
 727         SCTP_INP_RLOCK(inp);
 728         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 729             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 730                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 731                         /* No connection */
 732                         SCTP_INP_RUNLOCK(inp);
 733                         return (0);
 734                 } else {
 735                         struct sctp_association *asoc;
 736                         struct sctp_tcb *stcb;
 737
 738                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 739                         if (stcb == NULL) {
 740                                 SCTP_INP_RUNLOCK(inp);
 741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 742                                 return (EINVAL);
 743                         }
 744                         SCTP_TCB_LOCK(stcb);
 745                         asoc = &stcb->asoc;
 746                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 747                                 /* We are about to be freed, out of here */
 748                                 SCTP_TCB_UNLOCK(stcb);
 749                                 SCTP_INP_RUNLOCK(inp);
 750                                 return (0);
 751                         }
 752                         if (((so->so_options & SO_LINGER) &&
 753                             (so->so_linger == 0)) ||
 754                             (so->so_rcv.sb_cc > 0)) {
 755                                 if (SCTP_GET_STATE(asoc) !=
 756                                     SCTP_STATE_COOKIE_WAIT) {
 757                                         /* Left with Data unread */
 758                                         struct mbuf *err;
 759
 760                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 761                                         if (err) {
 762                                                 /*
 763                                                  * Fill in the user
 764                                                  * initiated abort
 765                                                  */
 766                                                 struct sctp_paramhdr *ph;
 767
 768                                                 ph = mtod(err, struct sctp_paramhdr *);
 769                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 770                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 771                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 772                                         }
 773                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 774                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 775                                 }
 776                                 SCTP_INP_RUNLOCK(inp);
 777                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 778                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 779                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 780                                 }
 781                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 782                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 783                                 /* No unlock tcb assoc is gone */
 784                                 return (0);
 785                         }
 786                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 787                             TAILQ_EMPTY(&asoc->sent_queue) &&
 788                             (asoc->stream_queue_cnt == 0)) {
 789                                 /* there is nothing queued to send, so done */
 790                                 if (asoc->locked_on_sending) {
 791                                         goto abort_anyway;
 792                                 }
 793                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 794                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 795                                         /* only send SHUTDOWN 1st time thru */
 796                                         struct sctp_nets *netp;
 797
 798                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 799                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 800                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 801                                         }
 802                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 803                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 804                                         sctp_stop_timers_for_shutdown(stcb);
 805                                         if (stcb->asoc.alternate) {
 806                                                 netp = stcb->asoc.alternate;
 807                                         } else {
 808                                                 netp = stcb->asoc.primary_destination;
 809                                         }
 810                                         sctp_send_shutdown(stcb, netp);
 811                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 812                                             stcb->sctp_ep, stcb, netp);
 813                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 814                                             stcb->sctp_ep, stcb, netp);
 815                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 816                                 }
 817                         } else {
 818                                 /*
 819                                  * we still got (or just got) data to send,
 820                                  * so set SHUTDOWN_PENDING
 821                                  */
 822                                 /*
 823                                  * XXX sockets draft says that SCTP_EOF
 824                                  * should be sent with no data. currently,
 825                                  * we will allow user data to be sent first
 826                                  * and move to SHUTDOWN-PENDING
 827                                  */
 828                                 struct sctp_nets *netp;
 829
 830                                 if (stcb->asoc.alternate) {
 831                                         netp = stcb->asoc.alternate;
 832                                 } else {
 833                                         netp = stcb->asoc.primary_destination;
 834                                 }
 835
 836                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 837                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 838                                     netp);
 839                                 if (asoc->locked_on_sending) {
 840                                         /* Locked to send out the data */
 841                                         struct sctp_stream_queue_pending *sp;
 842
 843                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 844                                         if (sp == NULL) {
 845                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 846                                                     asoc->locked_on_sending->stream_no);
 847                                         } else {
 848                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 849                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 850                                         }
 851                                 }
 852                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 853                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 854                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 855                                         struct mbuf *op_err;
 856
 857                         abort_anyway:
 858                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 859                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 860                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 861                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 862                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 863                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 864                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 865                                         }
 866                                         SCTP_INP_RUNLOCK(inp);
 867                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 868                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 869                                         return (0);
 870                                 } else {
 871                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 872                                 }
 873                         }
 874                         soisdisconnecting(so);
 875                         SCTP_TCB_UNLOCK(stcb);
 876                         SCTP_INP_RUNLOCK(inp);
 877                         return (0);
 878                 }
 879                 /* not reached */
 880         } else {
 881                 /* UDP model does not support this */
 882                 SCTP_INP_RUNLOCK(inp);
 883                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 884                 return (EOPNOTSUPP);
 885         }
 886 }
 887
 888 int
 889 sctp_flush(struct socket *so, int how)
 890 {
 891         /*
 892          * We will just clear out the values and let subsequent close clear
 893          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 894          * they will not be able to read the data, the socket will block
 895          * that from happening.
 896          */
 897         struct sctp_inpcb *inp;
 898
 899         inp = (struct sctp_inpcb *)so->so_pcb;
 900         if (inp == NULL) {
 901                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 902                 return (EINVAL);
 903         }
 904         SCTP_INP_RLOCK(inp);
 905         /* For the 1 to many model this does nothing */
 906         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 907                 SCTP_INP_RUNLOCK(inp);
 908                 return (0);
 909         }
 910         SCTP_INP_RUNLOCK(inp);
 911         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 912                 /*
 913                  * First make sure the sb will be happy, we don't use these
 914                  * except maybe the count
 915                  */
 916                 SCTP_INP_WLOCK(inp);
 917                 SCTP_INP_READ_LOCK(inp);
 918                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 919                 SCTP_INP_READ_UNLOCK(inp);
 920                 SCTP_INP_WUNLOCK(inp);
 921                 so->so_rcv.sb_cc = 0;
 922                 so->so_rcv.sb_mbcnt = 0;
 923                 so->so_rcv.sb_mb = NULL;
 924         }
 925         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 926                 /*
 927                  * First make sure the sb will be happy, we don't use these
 928                  * except maybe the count
 929                  */
 930                 so->so_snd.sb_cc = 0;
 931                 so->so_snd.sb_mbcnt = 0;
 932                 so->so_snd.sb_mb = NULL;
 933
 934         }
 935         return (0);
 936 }
 937
 938 int
 939 sctp_shutdown(struct socket *so)
 940 {
 941         struct sctp_inpcb *inp;
 942
 943         inp = (struct sctp_inpcb *)so->so_pcb;
 944         if (inp == NULL) {
 945                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 946                 return (EINVAL);
 947         }
 948         SCTP_INP_RLOCK(inp);
 949         /* For UDP model this is a invalid call */
 950         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 951             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 952                 /* Restore the flags that the soshutdown took away. */
 953                 SOCKBUF_LOCK(&so->so_rcv);
 954                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 955                 SOCKBUF_UNLOCK(&so->so_rcv);
 956                 /* This proc will wakeup for read and do nothing (I hope) */
 957                 SCTP_INP_RUNLOCK(inp);
 958                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 959                 return (EOPNOTSUPP);
 960         }
 961         /*
 962          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 963          * or SHUT_RDWR. This means we put the shutdown flag against it.
 964          */
 965         {
 966                 struct sctp_tcb *stcb;
 967                 struct sctp_association *asoc;
 968
 969                 if ((so->so_state &
 970                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 971                         SCTP_INP_RUNLOCK(inp);
 972                         return (ENOTCONN);
 973                 }
 974                 socantsendmore(so);
 975
 976                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 977                 if (stcb == NULL) {
 978                         /*
 979                          * Ok we hit the case that the shutdown call was
 980                          * made after an abort or something. Nothing to do
 981                          * now.
 982                          */
 983                         SCTP_INP_RUNLOCK(inp);
 984                         return (0);
 985                 }
 986                 SCTP_TCB_LOCK(stcb);
 987                 asoc = &stcb->asoc;
 988                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 989                     TAILQ_EMPTY(&asoc->sent_queue) &&
 990                     (asoc->stream_queue_cnt == 0)) {
 991                         if (asoc->locked_on_sending) {
 992                                 goto abort_anyway;
 993                         }
 994                         /* there is nothing queued to send, so I'm done... */
 995                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 996                                 /* only send SHUTDOWN the first time through */
 997                                 struct sctp_nets *netp;
 998
 999                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1000                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1001                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1002                                 }
1003                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1004                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1005                                 sctp_stop_timers_for_shutdown(stcb);
1006                                 if (stcb->asoc.alternate) {
1007                                         netp = stcb->asoc.alternate;
1008                                 } else {
1009                                         netp = stcb->asoc.primary_destination;
1010                                 }
1011                                 sctp_send_shutdown(stcb, netp);
1012                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1013                                     stcb->sctp_ep, stcb, netp);
1014                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1015                                     stcb->sctp_ep, stcb, netp);
1016                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1017                         }
1018                 } else {
1019                         /*
1020                          * we still got (or just got) data to send, so set
1021                          * SHUTDOWN_PENDING
1022                          */
1023                         struct sctp_nets *netp;
1024
1025                         if (stcb->asoc.alternate) {
1026                                 netp = stcb->asoc.alternate;
1027                         } else {
1028                                 netp = stcb->asoc.primary_destination;
1029                         }
1030
1031                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1032                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1033                             netp);
1034
1035                         if (asoc->locked_on_sending) {
1036                                 /* Locked to send out the data */
1037                                 struct sctp_stream_queue_pending *sp;
1038
1039                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1040                                 if (sp == NULL) {
1041                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1042                                             asoc->locked_on_sending->stream_no);
1043                                 } else {
1044                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1045                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1046                                         }
1047                                 }
1048                         }
1049                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1050                             TAILQ_EMPTY(&asoc->sent_queue) &&
1051                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1052                                 struct mbuf *op_err;
1053
1054                 abort_anyway:
1055                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1056                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1057                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1058                                     op_err, SCTP_SO_LOCKED);
1059                                 goto skip_unlock;
1060                         } else {
1061                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1062                         }
1063                 }
1064                 SCTP_TCB_UNLOCK(stcb);
1065         }
1066 skip_unlock:
1067         SCTP_INP_RUNLOCK(inp);
1068         return (0);
1069 }
1070
1071 /*
1072  * copies a "user" presentable address and removes embedded scope, etc.
1073  * returns 0 on success, 1 on error
1074  */
1075 static uint32_t
1076 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1077 {
1078 #ifdef INET6
1079         struct sockaddr_in6 lsa6;
1080
1081         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1082             &lsa6);
1083 #endif
1084         memcpy(ss, sa, sa->sa_len);
1085         return (0);
1086 }
1087
1088
1089
1090 /*
1091  * NOTE: assumes addr lock is held
1092  */
1093 static size_t
1094 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1095     struct sctp_tcb *stcb,
1096     size_t limit,
1097     struct sockaddr_storage *sas,
1098     uint32_t vrf_id)
1099 {
1100         struct sctp_ifn *sctp_ifn;
1101         struct sctp_ifa *sctp_ifa;
1102         size_t actual;
1103         int loopback_scope;
1104
1105 #if defined(INET)
1106         int ipv4_local_scope, ipv4_addr_legal;
1107
1108 #endif
1109 #if defined(INET6)
1110         int local_scope, site_scope, ipv6_addr_legal;
1111
1112 #endif
1113         struct sctp_vrf *vrf;
1114
1115         actual = 0;
1116         if (limit <= 0)
1117                 return (actual);
1118
1119         if (stcb) {
1120                 /* Turn on all the appropriate scope */
1121                 loopback_scope = stcb->asoc.scope.loopback_scope;
1122 #if defined(INET)
1123                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1124                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1125 #endif
1126 #if defined(INET6)
1127                 local_scope = stcb->asoc.scope.local_scope;
1128                 site_scope = stcb->asoc.scope.site_scope;
1129                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1130 #endif
1131         } else {
1132                 /* Use generic values for endpoints. */
1133                 loopback_scope = 1;
1134 #if defined(INET)
1135                 ipv4_local_scope = 1;
1136 #endif
1137 #if defined(INET6)
1138                 local_scope = 1;
1139                 site_scope = 1;
1140 #endif
1141                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1142 #if defined(INET6)
1143                         ipv6_addr_legal = 1;
1144 #endif
1145 #if defined(INET)
1146                         if (SCTP_IPV6_V6ONLY(inp)) {
1147                                 ipv4_addr_legal = 0;
1148                         } else {
1149                                 ipv4_addr_legal = 1;
1150                         }
1151 #endif
1152                 } else {
1153 #if defined(INET6)
1154                         ipv6_addr_legal = 0;
1155 #endif
1156 #if defined(INET)
1157                         ipv4_addr_legal = 1;
1158 #endif
1159                 }
1160         }
1161         vrf = sctp_find_vrf(vrf_id);
1162         if (vrf == NULL) {
1163                 return (0);
1164         }
1165         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1166                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1167                         if ((loopback_scope == 0) &&
1168                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1169                                 /* Skip loopback if loopback_scope not set */
1170                                 continue;
1171                         }
1172                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1173                                 if (stcb) {
1174                                         /*
1175                                          * For the BOUND-ALL case, the list
1176                                          * associated with a TCB is Always
1177                                          * considered a reverse list.. i.e.
1178                                          * it lists addresses that are NOT
1179                                          * part of the association. If this
1180                                          * is one of those we must skip it.
1181                                          */
1182                                         if (sctp_is_addr_restricted(stcb,
1183                                             sctp_ifa)) {
1184                                                 continue;
1185                                         }
1186                                 }
1187                                 switch (sctp_ifa->address.sa.sa_family) {
1188 #ifdef INET
1189                                 case AF_INET:
1190                                         if (ipv4_addr_legal) {
1191                                                 struct sockaddr_in *sin;
1192
1193                                                 sin = &sctp_ifa->address.sin;
1194                                                 if (sin->sin_addr.s_addr == 0) {
1195                                                         /*
1196                                                          * we skip
1197                                                          * unspecifed
1198                                                          * addresses
1199                                                          */
1200                                                         continue;
1201                                                 }
1202                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1203                                                     &sin->sin_addr) != 0) {
1204                                                         continue;
1205                                                 }
1206                                                 if ((ipv4_local_scope == 0) &&
1207                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1208                                                         continue;
1209                                                 }
1210 #ifdef INET6
1211                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1212                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1213                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1214                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1215                                                         actual += sizeof(struct sockaddr_in6);
1216                                                 } else {
1217 #endif
1218                                                         memcpy(sas, sin, sizeof(*sin));
1219                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1220                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1221                                                         actual += sizeof(*sin);
1222 #ifdef INET6
1223                                                 }
1224 #endif
1225                                                 if (actual >= limit) {
1226                                                         return (actual);
1227                                                 }
1228                                         } else {
1229                                                 continue;
1230                                         }
1231                                         break;
1232 #endif
1233 #ifdef INET6
1234                                 case AF_INET6:
1235                                         if (ipv6_addr_legal) {
1236                                                 struct sockaddr_in6 *sin6;
1237
1238                                                 sin6 = &sctp_ifa->address.sin6;
1239                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1240                                                         /*
1241                                                          * we skip
1242                                                          * unspecifed
1243                                                          * addresses
1244                                                          */
1245                                                         continue;
1246                                                 }
1247                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1248                                                     &sin6->sin6_addr) != 0) {
1249                                                         continue;
1250                                                 }
1251                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1252                                                         if (local_scope == 0)
1253                                                                 continue;
1254                                                         if (sin6->sin6_scope_id == 0) {
1255                                                                 if (sa6_recoverscope(sin6) != 0)
1256                                                                         /*
1257                                                                          *
1258                                                                          * bad
1259                                                                          *
1260                                                                          * li
1261                                                                          * nk
1262                                                                          *
1263                                                                          * loc
1264                                                                          * al
1265                                                                          *
1266                                                                          * add
1267                                                                          * re
1268                                                                          * ss
1269                                                                          * */
1270                                                                         continue;
1271                                                         }
1272                                                 }
1273                                                 if ((site_scope == 0) &&
1274                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1275                                                         continue;
1276                                                 }
1277                                                 memcpy(sas, sin6, sizeof(*sin6));
1278                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1279                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1280                                                 actual += sizeof(*sin6);
1281                                                 if (actual >= limit) {
1282                                                         return (actual);
1283                                                 }
1284                                         } else {
1285                                                 continue;
1286                                         }
1287                                         break;
1288 #endif
1289                                 default:
1290                                         /* TSNH */
1291                                         break;
1292                                 }
1293                         }
1294                 }
1295         } else {
1296                 struct sctp_laddr *laddr;
1297
1298                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1299                         if (stcb) {
1300                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1301                                         continue;
1302                                 }
1303                         }
1304                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1305                                 continue;
1306                         switch (laddr->ifa->address.sa.sa_family) {
1307 #ifdef INET
1308                         case AF_INET:
1309                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1310                                 break;
1311 #endif
1312 #ifdef INET6
1313                         case AF_INET6:
1314                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1315                                 break;
1316 #endif
1317                         default:
1318                                 /* TSNH */
1319                                 break;
1320                         }
1321                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1322                             laddr->ifa->address.sa.sa_len);
1323                         actual += laddr->ifa->address.sa.sa_len;
1324                         if (actual >= limit) {
1325                                 return (actual);
1326                         }
1327                 }
1328         }
1329         return (actual);
1330 }
1331
1332 static size_t
1333 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1334     struct sctp_tcb *stcb,
1335     size_t limit,
1336     struct sockaddr_storage *sas)
1337 {
1338         size_t size = 0;
1339
1340         SCTP_IPI_ADDR_RLOCK();
1341         /* fill up addresses for the endpoint's default vrf */
1342         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1343             inp->def_vrf_id);
1344         SCTP_IPI_ADDR_RUNLOCK();
1345         return (size);
1346 }
1347
1348 /*
1349  * NOTE: assumes addr lock is held
1350  */
1351 static int
1352 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1353 {
1354         int cnt = 0;
1355         struct sctp_vrf *vrf = NULL;
1356
1357         /*
1358          * In both sub-set bound an bound_all cases we return the MAXIMUM
1359          * number of addresses that you COULD get. In reality the sub-set
1360          * bound may have an exclusion list for a given TCB OR in the
1361          * bound-all case a TCB may NOT include the loopback or other
1362          * addresses as well.
1363          */
1364         vrf = sctp_find_vrf(vrf_id);
1365         if (vrf == NULL) {
1366                 return (0);
1367         }
1368         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1369                 struct sctp_ifn *sctp_ifn;
1370                 struct sctp_ifa *sctp_ifa;
1371
1372                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1373                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1374                                 /* Count them if they are the right type */
1375                                 switch (sctp_ifa->address.sa.sa_family) {
1376 #ifdef INET
1377                                 case AF_INET:
1378 #ifdef INET6
1379                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1380                                                 cnt += sizeof(struct sockaddr_in6);
1381                                         else
1382                                                 cnt += sizeof(struct sockaddr_in);
1383 #else
1384                                         cnt += sizeof(struct sockaddr_in);
1385 #endif
1386                                         break;
1387 #endif
1388 #ifdef INET6
1389                                 case AF_INET6:
1390                                         cnt += sizeof(struct sockaddr_in6);
1391                                         break;
1392 #endif
1393                                 default:
1394                                         break;
1395                                 }
1396                         }
1397                 }
1398         } else {
1399                 struct sctp_laddr *laddr;
1400
1401                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1402                         switch (laddr->ifa->address.sa.sa_family) {
1403 #ifdef INET
1404                         case AF_INET:
1405 #ifdef INET6
1406                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1407                                         cnt += sizeof(struct sockaddr_in6);
1408                                 else
1409                                         cnt += sizeof(struct sockaddr_in);
1410 #else
1411                                 cnt += sizeof(struct sockaddr_in);
1412 #endif
1413                                 break;
1414 #endif
1415 #ifdef INET6
1416                         case AF_INET6:
1417                                 cnt += sizeof(struct sockaddr_in6);
1418                                 break;
1419 #endif
1420                         default:
1421                                 break;
1422                         }
1423                 }
1424         }
1425         return (cnt);
1426 }
1427
1428 static int
1429 sctp_count_max_addresses(struct sctp_inpcb *inp)
1430 {
1431         int cnt = 0;
1432
1433         SCTP_IPI_ADDR_RLOCK();
1434         /* count addresses for the endpoint's default VRF */
1435         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1436         SCTP_IPI_ADDR_RUNLOCK();
1437         return (cnt);
1438 }
1439
1440 static int
1441 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1442     size_t optsize, void *p, int delay)
1443 {
1444         int error = 0;
1445         int creat_lock_on = 0;
1446         struct sctp_tcb *stcb = NULL;
1447         struct sockaddr *sa;
1448         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1449         uint32_t vrf_id;
1450         int bad_addresses = 0;
1451         sctp_assoc_t *a_id;
1452
1453         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1454
1455         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1456             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1457                 /* We are already connected AND the TCP model */
1458                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1459                 return (EADDRINUSE);
1460         }
1461         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1462             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1463                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1464                 return (EINVAL);
1465         }
1466         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1467                 SCTP_INP_RLOCK(inp);
1468                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1469                 SCTP_INP_RUNLOCK(inp);
1470         }
1471         if (stcb) {
1472                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1473                 return (EALREADY);
1474         }
1475         SCTP_INP_INCR_REF(inp);
1476         SCTP_ASOC_CREATE_LOCK(inp);
1477         creat_lock_on = 1;
1478         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1479             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1480                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1481                 error = EFAULT;
1482                 goto out_now;
1483         }
1484         totaddrp = (int *)optval;
1485         totaddr = *totaddrp;
1486         sa = (struct sockaddr *)(totaddrp + 1);
1487         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1488         if ((stcb != NULL) || bad_addresses) {
1489                 /* Already have or am bring up an association */
1490                 SCTP_ASOC_CREATE_UNLOCK(inp);
1491                 creat_lock_on = 0;
1492                 if (stcb)
1493                         SCTP_TCB_UNLOCK(stcb);
1494                 if (bad_addresses == 0) {
1495                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1496                         error = EALREADY;
1497                 }
1498                 goto out_now;
1499         }
1500 #ifdef INET6
1501         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1502             (num_v6 > 0)) {
1503                 error = EINVAL;
1504                 goto out_now;
1505         }
1506         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1507             (num_v4 > 0)) {
1508                 struct in6pcb *inp6;
1509
1510                 inp6 = (struct in6pcb *)inp;
1511                 if (SCTP_IPV6_V6ONLY(inp6)) {
1512                         /*
1513                          * if IPV6_V6ONLY flag, ignore connections destined
1514                          * to a v4 addr or v4-mapped addr
1515                          */
1516                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1517                         error = EINVAL;
1518                         goto out_now;
1519                 }
1520         }
1521 #endif                          /* INET6 */
1522         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1523             SCTP_PCB_FLAGS_UNBOUND) {
1524                 /* Bind a ephemeral port */
1525                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1526                 if (error) {
1527                         goto out_now;
1528                 }
1529         }
1530         /* FIX ME: do we want to pass in a vrf on the connect call? */
1531         vrf_id = inp->def_vrf_id;
1532
1533
1534         /* We are GOOD to go */
1535         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1536             (struct thread *)p
1537             );
1538         if (stcb == NULL) {
1539                 /* Gak! no memory */
1540                 goto out_now;
1541         }
1542         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1543                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1544                 /* Set the connected flag so we can queue data */
1545                 soisconnecting(so);
1546         }
1547         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1548         /* move to second address */
1549         switch (sa->sa_family) {
1550 #ifdef INET
1551         case AF_INET:
1552                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1553                 break;
1554 #endif
1555 #ifdef INET6
1556         case AF_INET6:
1557                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1558                 break;
1559 #endif
1560         default:
1561                 break;
1562         }
1563
1564         error = 0;
1565         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1566         /* Fill in the return id */
1567         if (error) {
1568                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1569                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1570                 goto out_now;
1571         }
1572         a_id = (sctp_assoc_t *) optval;
1573         *a_id = sctp_get_associd(stcb);
1574
1575         /* initialize authentication parameters for the assoc */
1576         sctp_initialize_auth_params(inp, stcb);
1577
1578         if (delay) {
1579                 /* doing delayed connection */
1580                 stcb->asoc.delayed_connection = 1;
1581                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1582         } else {
1583                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1584                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1585         }
1586         SCTP_TCB_UNLOCK(stcb);
1587         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1588                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1589                 /* Set the connected flag so we can queue data */
1590                 soisconnecting(so);
1591         }
1592 out_now:
1593         if (creat_lock_on) {
1594                 SCTP_ASOC_CREATE_UNLOCK(inp);
1595         }
1596         SCTP_INP_DECR_REF(inp);
1597         return (error);
1598 }
1599
1600 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1601         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1602             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1603                 SCTP_INP_RLOCK(inp); \
1604                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1605                 if (stcb) { \
1606                         SCTP_TCB_LOCK(stcb); \
1607                 } \
1608                 SCTP_INP_RUNLOCK(inp); \
1609         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1610                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1611                 if (stcb == NULL) { \
1612                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1613                         error = ENOENT; \
1614                         break; \
1615                 } \
1616         } else { \
1617                 stcb = NULL; \
1618         } \
1619   }
1620
1621
1622 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1623         if (size < sizeof(type)) { \
1624                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1625                 error = EINVAL; \
1626                 break; \
1627         } else { \
1628                 destp = (type *)srcp; \
1629         } \
1630       }
1631
1632 static int
1633 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1634     void *p)
1635 {
1636         struct sctp_inpcb *inp = NULL;
1637         int error, val = 0;
1638         struct sctp_tcb *stcb = NULL;
1639
1640         if (optval == NULL) {
1641                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1642                 return (EINVAL);
1643         }
1644         inp = (struct sctp_inpcb *)so->so_pcb;
1645         if (inp == NULL) {
1646                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1647                 return EINVAL;
1648         }
1649         error = 0;
1650
1651         switch (optname) {
1652         case SCTP_NODELAY:
1653         case SCTP_AUTOCLOSE:
1654         case SCTP_EXPLICIT_EOR:
1655         case SCTP_AUTO_ASCONF:
1656         case SCTP_DISABLE_FRAGMENTS:
1657         case SCTP_I_WANT_MAPPED_V4_ADDR:
1658         case SCTP_USE_EXT_RCVINFO:
1659                 SCTP_INP_RLOCK(inp);
1660                 switch (optname) {
1661                 case SCTP_DISABLE_FRAGMENTS:
1662                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1663                         break;
1664                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1665                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1666                         break;
1667                 case SCTP_AUTO_ASCONF:
1668                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1669                                 /* only valid for bound all sockets */
1670                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1671                         } else {
1672                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1673                                 error = EINVAL;
1674                                 goto flags_out;
1675                         }
1676                         break;
1677                 case SCTP_EXPLICIT_EOR:
1678                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1679                         break;
1680                 case SCTP_NODELAY:
1681                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1682                         break;
1683                 case SCTP_USE_EXT_RCVINFO:
1684                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1685                         break;
1686                 case SCTP_AUTOCLOSE:
1687                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1688                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1689                         else
1690                                 val = 0;
1691                         break;
1692
1693                 default:
1694                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1695                         error = ENOPROTOOPT;
1696                 }               /* end switch (sopt->sopt_name) */
1697                 if (*optsize < sizeof(val)) {
1698                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1699                         error = EINVAL;
1700                 }
1701 flags_out:
1702                 SCTP_INP_RUNLOCK(inp);
1703                 if (error == 0) {
1704                         /* return the option value */
1705                         *(int *)optval = val;
1706                         *optsize = sizeof(val);
1707                 }
1708                 break;
1709         case SCTP_GET_PACKET_LOG:
1710                 {
1711 #ifdef  SCTP_PACKET_LOGGING
1712                         uint8_t *target;
1713                         int ret;
1714
1715                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1716                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1717                         *optsize = ret;
1718 #else
1719                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1720                         error = EOPNOTSUPP;
1721 #endif
1722                         break;
1723                 }
1724         case SCTP_REUSE_PORT:
1725                 {
1726                         uint32_t *value;
1727
1728                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1729                                 /* Can't do this for a 1-m socket */
1730                                 error = EINVAL;
1731                                 break;
1732                         }
1733                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1734                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1735                         *optsize = sizeof(uint32_t);
1736                         break;
1737                 }
1738         case SCTP_PARTIAL_DELIVERY_POINT:
1739                 {
1740                         uint32_t *value;
1741
1742                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1743                         *value = inp->partial_delivery_point;
1744                         *optsize = sizeof(uint32_t);
1745                         break;
1746                 }
1747         case SCTP_FRAGMENT_INTERLEAVE:
1748                 {
1749                         uint32_t *value;
1750
1751                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1752                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1753                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1754                                         *value = SCTP_FRAG_LEVEL_2;
1755                                 } else {
1756                                         *value = SCTP_FRAG_LEVEL_1;
1757                                 }
1758                         } else {
1759                                 *value = SCTP_FRAG_LEVEL_0;
1760                         }
1761                         *optsize = sizeof(uint32_t);
1762                         break;
1763                 }
1764         case SCTP_CMT_ON_OFF:
1765                 {
1766                         struct sctp_assoc_value *av;
1767
1768                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1769                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1770                         if (stcb) {
1771                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1772                                 SCTP_TCB_UNLOCK(stcb);
1773                         } else {
1774                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1775                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1776                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1777                                         SCTP_INP_RLOCK(inp);
1778                                         av->assoc_value = inp->sctp_cmt_on_off;
1779                                         SCTP_INP_RUNLOCK(inp);
1780                                 } else {
1781                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1782                                         error = EINVAL;
1783                                 }
1784                         }
1785                         if (error == 0) {
1786                                 *optsize = sizeof(struct sctp_assoc_value);
1787                         }
1788                         break;
1789                 }
1790         case SCTP_PLUGGABLE_CC:
1791                 {
1792                         struct sctp_assoc_value *av;
1793
1794                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1795                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1796                         if (stcb) {
1797                                 av->assoc_value = stcb->asoc.congestion_control_module;
1798                                 SCTP_TCB_UNLOCK(stcb);
1799                         } else {
1800                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1801                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1802                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1803                                         SCTP_INP_RLOCK(inp);
1804                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1805                                         SCTP_INP_RUNLOCK(inp);
1806                                 } else {
1807                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1808                                         error = EINVAL;
1809                                 }
1810                         }
1811                         if (error == 0) {
1812                                 *optsize = sizeof(struct sctp_assoc_value);
1813                         }
1814                         break;
1815                 }
1816         case SCTP_CC_OPTION:
1817                 {
1818                         struct sctp_cc_option *cc_opt;
1819
1820                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1821                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1822                         if (stcb == NULL) {
1823                                 error = EINVAL;
1824                         } else {
1825                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1826                                         error = ENOTSUP;
1827                                 } else {
1828                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1829                                         *optsize = sizeof(struct sctp_cc_option);
1830                                 }
1831                                 SCTP_TCB_UNLOCK(stcb);
1832                         }
1833                         break;
1834                 }
1835         case SCTP_PLUGGABLE_SS:
1836                 {
1837                         struct sctp_assoc_value *av;
1838
1839                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1840                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1841                         if (stcb) {
1842                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1843                                 SCTP_TCB_UNLOCK(stcb);
1844                         } else {
1845                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1846                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1847                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1848                                         SCTP_INP_RLOCK(inp);
1849                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1850                                         SCTP_INP_RUNLOCK(inp);
1851                                 } else {
1852                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1853                                         error = EINVAL;
1854                                 }
1855                         }
1856                         if (error == 0) {
1857                                 *optsize = sizeof(struct sctp_assoc_value);
1858                         }
1859                         break;
1860                 }
1861         case SCTP_SS_VALUE:
1862                 {
1863                         struct sctp_stream_value *av;
1864
1865                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1866                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1867                         if (stcb) {
1868                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1869                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1870                                     &av->stream_value) < 0)) {
1871                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1872                                         error = EINVAL;
1873                                 } else {
1874                                         *optsize = sizeof(struct sctp_stream_value);
1875                                 }
1876                                 SCTP_TCB_UNLOCK(stcb);
1877                         } else {
1878                                 /*
1879                                  * Can't get stream value without
1880                                  * association
1881                                  */
1882                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1883                                 error = EINVAL;
1884                         }
1885                         break;
1886                 }
1887         case SCTP_GET_ADDR_LEN:
1888                 {
1889                         struct sctp_assoc_value *av;
1890
1891                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1892                         error = EINVAL;
1893 #ifdef INET
1894                         if (av->assoc_value == AF_INET) {
1895                                 av->assoc_value = sizeof(struct sockaddr_in);
1896                                 error = 0;
1897                         }
1898 #endif
1899 #ifdef INET6
1900                         if (av->assoc_value == AF_INET6) {
1901                                 av->assoc_value = sizeof(struct sockaddr_in6);
1902                                 error = 0;
1903                         }
1904 #endif
1905                         if (error) {
1906                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1907                         } else {
1908                                 *optsize = sizeof(struct sctp_assoc_value);
1909                         }
1910                         break;
1911                 }
1912         case SCTP_GET_ASSOC_NUMBER:
1913                 {
1914                         uint32_t *value, cnt;
1915
1916                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1917                         cnt = 0;
1918                         SCTP_INP_RLOCK(inp);
1919                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1920                                 cnt++;
1921                         }
1922                         SCTP_INP_RUNLOCK(inp);
1923                         *value = cnt;
1924                         *optsize = sizeof(uint32_t);
1925                         break;
1926                 }
1927         case SCTP_GET_ASSOC_ID_LIST:
1928                 {
1929                         struct sctp_assoc_ids *ids;
1930                         unsigned int at, limit;
1931
1932                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1933                         at = 0;
1934                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1935                         SCTP_INP_RLOCK(inp);
1936                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1937                                 if (at < limit) {
1938                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1939                                 } else {
1940                                         error = EINVAL;
1941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1942                                         break;
1943                                 }
1944                         }
1945                         SCTP_INP_RUNLOCK(inp);
1946                         if (error == 0) {
1947                                 ids->gaids_number_of_ids = at;
1948                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1949                         }
1950                         break;
1951                 }
1952         case SCTP_CONTEXT:
1953                 {
1954                         struct sctp_assoc_value *av;
1955
1956                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1957                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1958
1959                         if (stcb) {
1960                                 av->assoc_value = stcb->asoc.context;
1961                                 SCTP_TCB_UNLOCK(stcb);
1962                         } else {
1963                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1964                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1965                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1966                                         SCTP_INP_RLOCK(inp);
1967                                         av->assoc_value = inp->sctp_context;
1968                                         SCTP_INP_RUNLOCK(inp);
1969                                 } else {
1970                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1971                                         error = EINVAL;
1972                                 }
1973                         }
1974                         if (error == 0) {
1975                                 *optsize = sizeof(struct sctp_assoc_value);
1976                         }
1977                         break;
1978                 }
1979         case SCTP_VRF_ID:
1980                 {
1981                         uint32_t *default_vrfid;
1982
1983                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1984                         *default_vrfid = inp->def_vrf_id;
1985                         *optsize = sizeof(uint32_t);
1986                         break;
1987                 }
1988         case SCTP_GET_ASOC_VRF:
1989                 {
1990                         struct sctp_assoc_value *id;
1991
1992                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1993                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1994                         if (stcb == NULL) {
1995                                 error = EINVAL;
1996                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1997                         } else {
1998                                 id->assoc_value = stcb->asoc.vrf_id;
1999                                 *optsize = sizeof(struct sctp_assoc_value);
2000                         }
2001                         break;
2002                 }
2003         case SCTP_GET_VRF_IDS:
2004                 {
2005                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2006                         error = EOPNOTSUPP;
2007                         break;
2008                 }
2009         case SCTP_GET_NONCE_VALUES:
2010                 {
2011                         struct sctp_get_nonce_values *gnv;
2012
2013                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2014                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2015
2016                         if (stcb) {
2017                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2018                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2019                                 SCTP_TCB_UNLOCK(stcb);
2020                                 *optsize = sizeof(struct sctp_get_nonce_values);
2021                         } else {
2022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2023                                 error = ENOTCONN;
2024                         }
2025                         break;
2026                 }
2027         case SCTP_DELAYED_SACK:
2028                 {
2029                         struct sctp_sack_info *sack;
2030
2031                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2032                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2033                         if (stcb) {
2034                                 sack->sack_delay = stcb->asoc.delayed_ack;
2035                                 sack->sack_freq = stcb->asoc.sack_freq;
2036                                 SCTP_TCB_UNLOCK(stcb);
2037                         } else {
2038                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2039                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2040                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2041                                         SCTP_INP_RLOCK(inp);
2042                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2043                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2044                                         SCTP_INP_RUNLOCK(inp);
2045                                 } else {
2046                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2047                                         error = EINVAL;
2048                                 }
2049                         }
2050                         if (error == 0) {
2051                                 *optsize = sizeof(struct sctp_sack_info);
2052                         }
2053                         break;
2054                 }
2055         case SCTP_GET_SNDBUF_USE:
2056                 {
2057                         struct sctp_sockstat *ss;
2058
2059                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2060                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2061
2062                         if (stcb) {
2063                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2064                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2065                                     stcb->asoc.size_on_all_streams);
2066                                 SCTP_TCB_UNLOCK(stcb);
2067                                 *optsize = sizeof(struct sctp_sockstat);
2068                         } else {
2069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2070                                 error = ENOTCONN;
2071                         }
2072                         break;
2073                 }
2074         case SCTP_MAX_BURST:
2075                 {
2076                         struct sctp_assoc_value *av;
2077
2078                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2079                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2080
2081                         if (stcb) {
2082                                 av->assoc_value = stcb->asoc.max_burst;
2083                                 SCTP_TCB_UNLOCK(stcb);
2084                         } else {
2085                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2086                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2087                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2088                                         SCTP_INP_RLOCK(inp);
2089                                         av->assoc_value = inp->sctp_ep.max_burst;
2090                                         SCTP_INP_RUNLOCK(inp);
2091                                 } else {
2092                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2093                                         error = EINVAL;
2094                                 }
2095                         }
2096                         if (error == 0) {
2097                                 *optsize = sizeof(struct sctp_assoc_value);
2098                         }
2099                         break;
2100                 }
2101         case SCTP_MAXSEG:
2102                 {
2103                         struct sctp_assoc_value *av;
2104                         int ovh;
2105
2106                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2107                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2108
2109                         if (stcb) {
2110                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2111                                 SCTP_TCB_UNLOCK(stcb);
2112                         } else {
2113                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2114                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2115                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2116                                         SCTP_INP_RLOCK(inp);
2117                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2118                                                 ovh = SCTP_MED_OVERHEAD;
2119                                         } else {
2120                                                 ovh = SCTP_MED_V4_OVERHEAD;
2121                                         }
2122                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2123                                                 av->assoc_value = 0;
2124                                         else
2125                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2126                                         SCTP_INP_RUNLOCK(inp);
2127                                 } else {
2128                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2129                                         error = EINVAL;
2130                                 }
2131                         }
2132                         if (error == 0) {
2133                                 *optsize = sizeof(struct sctp_assoc_value);
2134                         }
2135                         break;
2136                 }
2137         case SCTP_GET_STAT_LOG:
2138                 error = sctp_fill_stat_log(optval, optsize);
2139                 break;
2140         case SCTP_EVENTS:
2141                 {
2142                         struct sctp_event_subscribe *events;
2143
2144                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2145                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2146                         SCTP_INP_RLOCK(inp);
2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2148                                 events->sctp_data_io_event = 1;
2149
2150                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2151                                 events->sctp_association_event = 1;
2152
2153                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2154                                 events->sctp_address_event = 1;
2155
2156                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2157                                 events->sctp_send_failure_event = 1;
2158
2159                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2160                                 events->sctp_peer_error_event = 1;
2161
2162                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2163                                 events->sctp_shutdown_event = 1;
2164
2165                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2166                                 events->sctp_partial_delivery_event = 1;
2167
2168                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2169                                 events->sctp_adaptation_layer_event = 1;
2170
2171                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2172                                 events->sctp_authentication_event = 1;
2173
2174                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2175                                 events->sctp_sender_dry_event = 1;
2176
2177                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2178                                 events->sctp_stream_reset_event = 1;
2179                         SCTP_INP_RUNLOCK(inp);
2180                         *optsize = sizeof(struct sctp_event_subscribe);
2181                         break;
2182                 }
2183         case SCTP_ADAPTATION_LAYER:
2184                 {
2185                         uint32_t *value;
2186
2187                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2188
2189                         SCTP_INP_RLOCK(inp);
2190                         *value = inp->sctp_ep.adaptation_layer_indicator;
2191                         SCTP_INP_RUNLOCK(inp);
2192                         *optsize = sizeof(uint32_t);
2193                         break;
2194                 }
2195         case SCTP_SET_INITIAL_DBG_SEQ:
2196                 {
2197                         uint32_t *value;
2198
2199                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2200                         SCTP_INP_RLOCK(inp);
2201                         *value = inp->sctp_ep.initial_sequence_debug;
2202                         SCTP_INP_RUNLOCK(inp);
2203                         *optsize = sizeof(uint32_t);
2204                         break;
2205                 }
2206         case SCTP_GET_LOCAL_ADDR_SIZE:
2207                 {
2208                         uint32_t *value;
2209
2210                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2211                         SCTP_INP_RLOCK(inp);
2212                         *value = sctp_count_max_addresses(inp);
2213                         SCTP_INP_RUNLOCK(inp);
2214                         *optsize = sizeof(uint32_t);
2215                         break;
2216                 }
2217         case SCTP_GET_REMOTE_ADDR_SIZE:
2218                 {
2219                         uint32_t *value;
2220                         size_t size;
2221                         struct sctp_nets *net;
2222
2223                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2224                         /* FIXME MT: change to sctp_assoc_value? */
2225                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2226
2227                         if (stcb) {
2228                                 size = 0;
2229                                 /* Count the sizes */
2230                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2231                                         switch (net->ro._l_addr.sa.sa_family) {
2232 #ifdef INET
2233                                         case AF_INET:
2234 #ifdef INET6
2235                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2236                                                         size += sizeof(struct sockaddr_in6);
2237                                                 } else {
2238                                                         size += sizeof(struct sockaddr_in);
2239                                                 }
2240 #else
2241                                                 size += sizeof(struct sockaddr_in);
2242 #endif
2243                                                 break;
2244 #endif
2245 #ifdef INET6
2246                                         case AF_INET6:
2247                                                 size += sizeof(struct sockaddr_in6);
2248                                                 break;
2249 #endif
2250                                         default:
2251                                                 break;
2252                                         }
2253                                 }
2254                                 SCTP_TCB_UNLOCK(stcb);
2255                                 *value = (uint32_t) size;
2256                                 *optsize = sizeof(uint32_t);
2257                         } else {
2258                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2259                                 error = ENOTCONN;
2260                         }
2261                         break;
2262                 }
2263         case SCTP_GET_PEER_ADDRESSES:
2264                 /*
2265                  * Get the address information, an array is passed in to
2266                  * fill up we pack it.
2267                  */
2268                 {
2269                         size_t cpsz, left;
2270                         struct sockaddr_storage *sas;
2271                         struct sctp_nets *net;
2272                         struct sctp_getaddresses *saddr;
2273
2274                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2275                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2276
2277                         if (stcb) {
2278                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2279                                 *optsize = sizeof(struct sctp_getaddresses);
2280                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2281
2282                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2283                                         switch (net->ro._l_addr.sa.sa_family) {
2284 #ifdef INET
2285                                         case AF_INET:
2286 #ifdef INET6
2287                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2288                                                         cpsz = sizeof(struct sockaddr_in6);
2289                                                 } else {
2290                                                         cpsz = sizeof(struct sockaddr_in);
2291                                                 }
2292 #else
2293                                                 cpsz = sizeof(struct sockaddr_in);
2294 #endif
2295                                                 break;
2296 #endif
2297 #ifdef INET6
2298                                         case AF_INET6:
2299                                                 cpsz = sizeof(struct sockaddr_in6);
2300                                                 break;
2301 #endif
2302                                         default:
2303                                                 cpsz = 0;
2304                                                 break;
2305                                         }
2306                                         if (cpsz == 0) {
2307                                                 break;
2308                                         }
2309                                         if (left < cpsz) {
2310                                                 /* not enough room. */
2311                                                 break;
2312                                         }
2313 #if defined(INET) && defined(INET6)
2314                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2315                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2316                                                 /* Must map the address */
2317                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2318                                                     (struct sockaddr_in6 *)sas);
2319                                         } else {
2320                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2321                                         }
2322 #else
2323                                         memcpy(sas, &net->ro._l_addr, cpsz);
2324 #endif
2325                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2326
2327                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2328                                         left -= cpsz;
2329                                         *optsize += cpsz;
2330                                 }
2331                                 SCTP_TCB_UNLOCK(stcb);
2332                         } else {
2333                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2334                                 error = ENOENT;
2335                         }
2336                         break;
2337                 }
2338         case SCTP_GET_LOCAL_ADDRESSES:
2339                 {
2340                         size_t limit, actual;
2341                         struct sockaddr_storage *sas;
2342                         struct sctp_getaddresses *saddr;
2343
2344                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2345                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2346
2347                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2348                         limit = *optsize - sizeof(sctp_assoc_t);
2349                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2350                         if (stcb) {
2351                                 SCTP_TCB_UNLOCK(stcb);
2352                         }
2353                         *optsize = sizeof(struct sockaddr_storage) + actual;
2354                         break;
2355                 }
2356         case SCTP_PEER_ADDR_PARAMS:
2357                 {
2358                         struct sctp_paddrparams *paddrp;
2359                         struct sctp_nets *net;
2360                         struct sockaddr *addr;
2361
2362 #if defined(INET) && defined(INET6)
2363                         struct sockaddr_in sin_store;
2364
2365 #endif
2366
2367                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2368                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2369
2370 #if defined(INET) && defined(INET6)
2371                         if (paddrp->spp_address.ss_family == AF_INET6) {
2372                                 struct sockaddr_in6 *sin6;
2373
2374                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2375                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2376                                         in6_sin6_2_sin(&sin_store, sin6);
2377                                         addr = (struct sockaddr *)&sin_store;
2378                                 } else {
2379                                         addr = (struct sockaddr *)&paddrp->spp_address;
2380                                 }
2381                         } else {
2382                                 addr = (struct sockaddr *)&paddrp->spp_address;
2383                         }
2384 #else
2385                         addr = (struct sockaddr *)&paddrp->spp_address;
2386 #endif
2387                         if (stcb != NULL) {
2388                                 net = sctp_findnet(stcb, addr);
2389                         } else {
2390                                 /*
2391                                  * We increment here since
2392                                  * sctp_findassociation_ep_addr() wil do a
2393                                  * decrement if it finds the stcb as long as
2394                                  * the locked tcb (last argument) is NOT a
2395                                  * TCB.. aka NULL.
2396                                  */
2397                                 net = NULL;
2398                                 SCTP_INP_INCR_REF(inp);
2399                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2400                                 if (stcb == NULL) {
2401                                         SCTP_INP_DECR_REF(inp);
2402                                 }
2403                         }
2404                         if ((stcb != NULL) && (net == NULL)) {
2405 #ifdef INET
2406                                 if (addr->sa_family == AF_INET) {
2407                                         struct sockaddr_in *sin;
2408
2409                                         sin = (struct sockaddr_in *)addr;
2410                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2411                                                 error = EINVAL;
2412                                                 SCTP_TCB_UNLOCK(stcb);
2413                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2414                                                 break;
2415                                         }
2416                                 } else
2417 #endif
2418 #ifdef INET6
2419                                 if (addr->sa_family == AF_INET6) {
2420                                         struct sockaddr_in6 *sin6;
2421
2422                                         sin6 = (struct sockaddr_in6 *)addr;
2423                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2424                                                 error = EINVAL;
2425                                                 SCTP_TCB_UNLOCK(stcb);
2426                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2427                                                 break;
2428                                         }
2429                                 } else
2430 #endif
2431                                 {
2432                                         error = EAFNOSUPPORT;
2433                                         SCTP_TCB_UNLOCK(stcb);
2434                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2435                                         break;
2436                                 }
2437                         }
2438                         if (stcb != NULL) {
2439                                 /* Applies to the specific association */
2440                                 paddrp->spp_flags = 0;
2441                                 if (net != NULL) {
2442                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2443                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2444                                         paddrp->spp_pathmtu = net->mtu;
2445                                         switch (net->ro._l_addr.sa.sa_family) {
2446 #ifdef INET
2447                                         case AF_INET:
2448                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2449                                                 break;
2450 #endif
2451 #ifdef INET6
2452                                         case AF_INET6:
2453                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2454                                                 break;
2455 #endif
2456                                         default:
2457                                                 break;
2458                                         }
2459                                         /* get flags for HB */
2460                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2461                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2462                                         } else {
2463                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2464                                         }
2465                                         /* get flags for PMTU */
2466                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2467                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2468                                         } else {
2469                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2470                                         }
2471                                         if (net->dscp & 0x01) {
2472                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2473                                                 paddrp->spp_flags |= SPP_DSCP;
2474                                         }
2475 #ifdef INET6
2476                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2477                                             (net->flowlabel & 0x80000000)) {
2478                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2479                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2480                                         }
2481 #endif
2482                                 } else {
2483                                         /*
2484                                          * No destination so return default
2485                                          * value
2486                                          */
2487                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2488                                         paddrp->spp_pathmtu = 0;
2489                                         if (stcb->asoc.default_dscp & 0x01) {
2490                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2491                                                 paddrp->spp_flags |= SPP_DSCP;
2492                                         }
2493 #ifdef INET6
2494                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2495                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2496                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2497                                         }
2498 #endif
2499                                         /* default settings should be these */
2500                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2504                                         }
2505                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2509                                         }
2510                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2511                                 }
2512                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2513                                 SCTP_TCB_UNLOCK(stcb);
2514                         } else {
2515                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2516                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2517                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2518                                         /* Use endpoint defaults */
2519                                         SCTP_INP_RLOCK(inp);
2520                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2521                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2522                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2523                                         /* get inp's default */
2524                                         if (inp->sctp_ep.default_dscp & 0x01) {
2525                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2526                                                 paddrp->spp_flags |= SPP_DSCP;
2527                                         }
2528 #ifdef INET6
2529                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2530                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2531                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2532                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2533                                         }
2534 #endif
2535                                         /* can't return this */
2536                                         paddrp->spp_pathmtu = 0;
2537
2538                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2539                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2540                                         } else {
2541                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2542                                         }
2543                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2544                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2545                                         } else {
2546                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2547                                         }
2548                                         SCTP_INP_RUNLOCK(inp);
2549                                 } else {
2550                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2551                                         error = EINVAL;
2552                                 }
2553                         }
2554                         if (error == 0) {
2555                                 *optsize = sizeof(struct sctp_paddrparams);
2556                         }
2557                         break;
2558                 }
2559         case SCTP_GET_PEER_ADDR_INFO:
2560                 {
2561                         struct sctp_paddrinfo *paddri;
2562                         struct sctp_nets *net;
2563                         struct sockaddr *addr;
2564
2565 #if defined(INET) && defined(INET6)
2566                         struct sockaddr_in sin_store;
2567
2568 #endif
2569
2570                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2571                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2572
2573 #if defined(INET) && defined(INET6)
2574                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2575                                 struct sockaddr_in6 *sin6;
2576
2577                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2578                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2579                                         in6_sin6_2_sin(&sin_store, sin6);
2580                                         addr = (struct sockaddr *)&sin_store;
2581                                 } else {
2582                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2583                                 }
2584                         } else {
2585                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2586                         }
2587 #else
2588                         addr = (struct sockaddr *)&paddri->spinfo_address;
2589 #endif
2590                         if (stcb != NULL) {
2591                                 net = sctp_findnet(stcb, addr);
2592                         } else {
2593                                 /*
2594                                  * We increment here since
2595                                  * sctp_findassociation_ep_addr() wil do a
2596                                  * decrement if it finds the stcb as long as
2597                                  * the locked tcb (last argument) is NOT a
2598                                  * TCB.. aka NULL.
2599                                  */
2600                                 net = NULL;
2601                                 SCTP_INP_INCR_REF(inp);
2602                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2603                                 if (stcb == NULL) {
2604                                         SCTP_INP_DECR_REF(inp);
2605                                 }
2606                         }
2607
2608                         if ((stcb != NULL) && (net != NULL)) {
2609                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2610                                         /* It's unconfirmed */
2611                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2612                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2613                                         /* It's active */
2614                                         paddri->spinfo_state = SCTP_ACTIVE;
2615                                 } else {
2616                                         /* It's inactive */
2617                                         paddri->spinfo_state = SCTP_INACTIVE;
2618                                 }
2619                                 paddri->spinfo_cwnd = net->cwnd;
2620                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2621                                 paddri->spinfo_rto = net->RTO;
2622                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2623                                 paddri->spinfo_mtu = net->mtu;
2624                                 switch (addr->sa_family) {
2625 #if defined(INET)
2626                                 case AF_INET:
2627                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2628                                         break;
2629 #endif
2630 #if defined(INET6)
2631                                 case AF_INET6:
2632                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2633                                         break;
2634 #endif
2635                                 default:
2636                                         break;
2637                                 }
2638                                 SCTP_TCB_UNLOCK(stcb);
2639                                 *optsize = sizeof(struct sctp_paddrinfo);
2640                         } else {
2641                                 if (stcb != NULL) {
2642                                         SCTP_TCB_UNLOCK(stcb);
2643                                 }
2644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2645                                 error = ENOENT;
2646                         }
2647                         break;
2648                 }
2649         case SCTP_PCB_STATUS:
2650                 {
2651                         struct sctp_pcbinfo *spcb;
2652
2653                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2654                         sctp_fill_pcbinfo(spcb);
2655                         *optsize = sizeof(struct sctp_pcbinfo);
2656                         break;
2657                 }
2658         case SCTP_STATUS:
2659                 {
2660                         struct sctp_nets *net;
2661                         struct sctp_status *sstat;
2662
2663                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2664                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2665
2666                         if (stcb == NULL) {
2667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2668                                 error = EINVAL;
2669                                 break;
2670                         }
2671                         /*
2672                          * I think passing the state is fine since
2673                          * sctp_constants.h will be available to the user
2674                          * land.
2675                          */
2676                         sstat->sstat_state = stcb->asoc.state;
2677                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2678                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2679                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2680                         /*
2681                          * We can't include chunks that have been passed to
2682                          * the socket layer. Only things in queue.
2683                          */
2684                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2685                             stcb->asoc.cnt_on_all_streams);
2686
2687
2688                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2689                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2690                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2691                         memcpy(&sstat->sstat_primary.spinfo_address,
2692                             &stcb->asoc.primary_destination->ro._l_addr,
2693                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2694                         net = stcb->asoc.primary_destination;
2695                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2696                         /*
2697                          * Again the user can get info from sctp_constants.h
2698                          * for what the state of the network is.
2699                          */
2700                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2701                                 /* It's unconfirmed */
2702                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2703                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2704                                 /* It's active */
2705                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2706                         } else {
2707                                 /* It's inactive */
2708                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2709                         }
2710                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2711                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2712                         sstat->sstat_primary.spinfo_rto = net->RTO;
2713                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2714                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2715 #if defined(INET)
2716                         case AF_INET:
2717                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2718                                 break;
2719 #endif
2720 #if defined(INET6)
2721                         case AF_INET6:
2722                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2723                                 break;
2724 #endif
2725                         default:
2726                                 break;
2727                         }
2728                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2729                         SCTP_TCB_UNLOCK(stcb);
2730                         *optsize = sizeof(struct sctp_status);
2731                         break;
2732                 }
2733         case SCTP_RTOINFO:
2734                 {
2735                         struct sctp_rtoinfo *srto;
2736
2737                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2738                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2739
2740                         if (stcb) {
2741                                 srto->srto_initial = stcb->asoc.initial_rto;
2742                                 srto->srto_max = stcb->asoc.maxrto;
2743                                 srto->srto_min = stcb->asoc.minrto;
2744                                 SCTP_TCB_UNLOCK(stcb);
2745                         } else {
2746                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2747                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2748                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2749                                         SCTP_INP_RLOCK(inp);
2750                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2751                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2752                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2753                                         SCTP_INP_RUNLOCK(inp);
2754                                 } else {
2755                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2756                                         error = EINVAL;
2757                                 }
2758                         }
2759                         if (error == 0) {
2760                                 *optsize = sizeof(struct sctp_rtoinfo);
2761                         }
2762                         break;
2763                 }
2764         case SCTP_TIMEOUTS:
2765                 {
2766                         struct sctp_timeouts *stimo;
2767
2768                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2769                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2770
2771                         if (stcb) {
2772                                 stimo->stimo_init = stcb->asoc.timoinit;
2773                                 stimo->stimo_data = stcb->asoc.timodata;
2774                                 stimo->stimo_sack = stcb->asoc.timosack;
2775                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2776                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2777                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2778                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2779                                 SCTP_TCB_UNLOCK(stcb);
2780                                 *optsize = sizeof(struct sctp_timeouts);
2781                         } else {
2782                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2783                                 error = EINVAL;
2784                         }
2785                         break;
2786                 }
2787         case SCTP_ASSOCINFO:
2788                 {
2789                         struct sctp_assocparams *sasoc;
2790
2791                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2792                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2793
2794                         if (stcb) {
2795                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2796                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2797                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2798                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2799                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2800                                 SCTP_TCB_UNLOCK(stcb);
2801                         } else {
2802                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2803                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2804                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2805                                         SCTP_INP_RLOCK(inp);
2806                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2807                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2808                                         sasoc->sasoc_number_peer_destinations = 0;
2809                                         sasoc->sasoc_peer_rwnd = 0;
2810                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2811                                         SCTP_INP_RUNLOCK(inp);
2812                                 } else {
2813                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2814                                         error = EINVAL;
2815                                 }
2816                         }
2817                         if (error == 0) {
2818                                 *optsize = sizeof(struct sctp_assocparams);
2819                         }
2820                         break;
2821                 }
2822         case SCTP_DEFAULT_SEND_PARAM:
2823                 {
2824                         struct sctp_sndrcvinfo *s_info;
2825
2826                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2827                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2828
2829                         if (stcb) {
2830                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2831                                 SCTP_TCB_UNLOCK(stcb);
2832                         } else {
2833                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2834                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2835                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2836                                         SCTP_INP_RLOCK(inp);
2837                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2838                                         SCTP_INP_RUNLOCK(inp);
2839                                 } else {
2840                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2841                                         error = EINVAL;
2842                                 }
2843                         }
2844                         if (error == 0) {
2845                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2846                         }
2847                         break;
2848                 }
2849         case SCTP_INITMSG:
2850                 {
2851                         struct sctp_initmsg *sinit;
2852
2853                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2854                         SCTP_INP_RLOCK(inp);
2855                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2856                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2857                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2858                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2859                         SCTP_INP_RUNLOCK(inp);
2860                         *optsize = sizeof(struct sctp_initmsg);
2861                         break;
2862                 }
2863         case SCTP_PRIMARY_ADDR:
2864                 /* we allow a "get" operation on this */
2865                 {
2866                         struct sctp_setprim *ssp;
2867
2868                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2869                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2870
2871                         if (stcb) {
2872                                 union sctp_sockstore *addr;
2873
2874                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2875                                 switch (addr->sa.sa_family) {
2876 #ifdef INET
2877                                 case AF_INET:
2878 #ifdef INET6
2879                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2880                                                 in6_sin_2_v4mapsin6(&addr->sin,
2881                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2882                                         } else {
2883                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2884                                         }
2885 #else
2886                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2887 #endif
2888                                         break;
2889 #endif
2890 #ifdef INET6
2891                                 case AF_INET6:
2892                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2893                                         break;
2894 #endif
2895                                 default:
2896                                         break;
2897                                 }
2898                                 SCTP_TCB_UNLOCK(stcb);
2899                                 *optsize = sizeof(struct sctp_setprim);
2900                         } else {
2901                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2902                                 error = EINVAL;
2903                         }
2904                         break;
2905                 }
2906         case SCTP_HMAC_IDENT:
2907                 {
2908                         struct sctp_hmacalgo *shmac;
2909                         sctp_hmaclist_t *hmaclist;
2910                         uint32_t size;
2911                         int i;
2912
2913                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2914
2915                         SCTP_INP_RLOCK(inp);
2916                         hmaclist = inp->sctp_ep.local_hmacs;
2917                         if (hmaclist == NULL) {
2918                                 /* no HMACs to return */
2919                                 *optsize = sizeof(*shmac);
2920                                 SCTP_INP_RUNLOCK(inp);
2921                                 break;
2922                         }
2923                         /* is there room for all of the hmac ids? */
2924                         size = sizeof(*shmac) + (hmaclist->num_algo *
2925                             sizeof(shmac->shmac_idents[0]));
2926                         if ((size_t)(*optsize) < size) {
2927                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2928                                 error = EINVAL;
2929                                 SCTP_INP_RUNLOCK(inp);
2930                                 break;
2931                         }
2932                         /* copy in the list */
2933                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2934                         for (i = 0; i < hmaclist->num_algo; i++) {
2935                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2936                         }
2937                         SCTP_INP_RUNLOCK(inp);
2938                         *optsize = size;
2939                         break;
2940                 }
2941         case SCTP_AUTH_ACTIVE_KEY:
2942                 {
2943                         struct sctp_authkeyid *scact;
2944
2945                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2946                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2947
2948                         if (stcb) {
2949                                 /* get the active key on the assoc */
2950                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2951                                 SCTP_TCB_UNLOCK(stcb);
2952                         } else {
2953                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2954                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2955                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2956                                         /* get the endpoint active key */
2957                                         SCTP_INP_RLOCK(inp);
2958                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2959                                         SCTP_INP_RUNLOCK(inp);
2960                                 } else {
2961                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2962                                         error = EINVAL;
2963                                 }
2964                         }
2965                         if (error == 0) {
2966                                 *optsize = sizeof(struct sctp_authkeyid);
2967                         }
2968                         break;
2969                 }
2970         case SCTP_LOCAL_AUTH_CHUNKS:
2971                 {
2972                         struct sctp_authchunks *sac;
2973                         sctp_auth_chklist_t *chklist = NULL;
2974                         size_t size = 0;
2975
2976                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2977                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2978
2979                         if (stcb) {
2980                                 /* get off the assoc */
2981                                 chklist = stcb->asoc.local_auth_chunks;
2982                                 /* is there enough space? */
2983                                 size = sctp_auth_get_chklist_size(chklist);
2984                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2985                                         error = EINVAL;
2986                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2987                                 } else {
2988                                         /* copy in the chunks */
2989                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2990                                         sac->gauth_number_of_chunks = (uint32_t) size;
2991                                         *optsize = sizeof(struct sctp_authchunks) + size;
2992                                 }
2993                                 SCTP_TCB_UNLOCK(stcb);
2994                         } else {
2995                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2996                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2997                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2998                                         /* get off the endpoint */
2999                                         SCTP_INP_RLOCK(inp);
3000                                         chklist = inp->sctp_ep.local_auth_chunks;
3001                                         /* is there enough space? */
3002                                         size = sctp_auth_get_chklist_size(chklist);
3003                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3004                                                 error = EINVAL;
3005                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3006                                         } else {
3007                                                 /* copy in the chunks */
3008                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3009                                                 sac->gauth_number_of_chunks = (uint32_t) size;
3010                                                 *optsize = sizeof(struct sctp_authchunks) + size;
3011                                         }
3012                                         SCTP_INP_RUNLOCK(inp);
3013                                 } else {
3014                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3015                                         error = EINVAL;
3016                                 }
3017                         }
3018                         break;
3019                 }
3020         case SCTP_PEER_AUTH_CHUNKS:
3021                 {
3022                         struct sctp_authchunks *sac;
3023                         sctp_auth_chklist_t *chklist = NULL;
3024                         size_t size = 0;
3025
3026                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3027                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3028
3029                         if (stcb) {
3030                                 /* get off the assoc */
3031                                 chklist = stcb->asoc.peer_auth_chunks;
3032                                 /* is there enough space? */
3033                                 size = sctp_auth_get_chklist_size(chklist);
3034                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3035                                         error = EINVAL;
3036                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3037                                 } else {
3038                                         /* copy in the chunks */
3039                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3040                                         sac->gauth_number_of_chunks = (uint32_t) size;
3041                                         *optsize = sizeof(struct sctp_authchunks) + size;
3042                                 }
3043                                 SCTP_TCB_UNLOCK(stcb);
3044                         } else {
3045                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3046                                 error = ENOENT;
3047                         }
3048                         break;
3049                 }
3050         case SCTP_EVENT:
3051                 {
3052                         struct sctp_event *event;
3053                         uint32_t event_type;
3054
3055                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3056                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3057
3058                         switch (event->se_type) {
3059                         case SCTP_ASSOC_CHANGE:
3060                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3061                                 break;
3062                         case SCTP_PEER_ADDR_CHANGE:
3063                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3064                                 break;
3065                         case SCTP_REMOTE_ERROR:
3066                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3067                                 break;
3068                         case SCTP_SEND_FAILED:
3069                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3070                                 break;
3071                         case SCTP_SHUTDOWN_EVENT:
3072                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3073                                 break;
3074                         case SCTP_ADAPTATION_INDICATION:
3075                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3076                                 break;
3077                         case SCTP_PARTIAL_DELIVERY_EVENT:
3078                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3079                                 break;
3080                         case SCTP_AUTHENTICATION_EVENT:
3081                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3082                                 break;
3083                         case SCTP_STREAM_RESET_EVENT:
3084                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3085                                 break;
3086                         case SCTP_SENDER_DRY_EVENT:
3087                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3088                                 break;
3089                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3090                                 event_type = 0;
3091                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3092                                 error = ENOTSUP;
3093                                 break;
3094                         case SCTP_ASSOC_RESET_EVENT:
3095                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3096                                 break;
3097                         case SCTP_STREAM_CHANGE_EVENT:
3098                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3099                                 break;
3100                         case SCTP_SEND_FAILED_EVENT:
3101                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3102                                 break;
3103                         default:
3104                                 event_type = 0;
3105                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3106                                 error = EINVAL;
3107                                 break;
3108                         }
3109                         if (event_type > 0) {
3110                                 if (stcb) {
3111                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3112                                         SCTP_TCB_UNLOCK(stcb);
3113                                 } else {
3114                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3115                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3116                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3117                                                 SCTP_INP_RLOCK(inp);
3118                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3119                                                 SCTP_INP_RUNLOCK(inp);
3120                                         } else {
3121                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3122                                                 error = EINVAL;
3123                                         }
3124                                 }
3125                         }
3126                         if (error == 0) {
3127                                 *optsize = sizeof(struct sctp_event);
3128                         }
3129                         break;
3130                 }
3131         case SCTP_RECVRCVINFO:
3132                 {
3133                         int onoff;
3134
3135                         if (*optsize < sizeof(int)) {
3136                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3137                                 error = EINVAL;
3138                         } else {
3139                                 SCTP_INP_RLOCK(inp);
3140                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3141                                 SCTP_INP_RUNLOCK(inp);
3142                         }
3143                         if (error == 0) {
3144                                 /* return the option value */
3145                                 *(int *)optval = onoff;
3146                                 *optsize = sizeof(int);
3147                         }
3148                         break;
3149                 }
3150         case SCTP_RECVNXTINFO:
3151                 {
3152                         int onoff;
3153
3154                         if (*optsize < sizeof(int)) {
3155                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3156                                 error = EINVAL;
3157                         } else {
3158                                 SCTP_INP_RLOCK(inp);
3159                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3160                                 SCTP_INP_RUNLOCK(inp);
3161                         }
3162                         if (error == 0) {
3163                                 /* return the option value */
3164                                 *(int *)optval = onoff;
3165                                 *optsize = sizeof(int);
3166                         }
3167                         break;
3168                 }
3169         case SCTP_DEFAULT_SNDINFO:
3170                 {
3171                         struct sctp_sndinfo *info;
3172
3173                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3174                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3175
3176                         if (stcb) {
3177                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3178                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3179                                 info->snd_flags &= 0xfff0;
3180                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3181                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3182                                 SCTP_TCB_UNLOCK(stcb);
3183                         } else {
3184                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3185                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3186                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3187                                         SCTP_INP_RLOCK(inp);
3188                                         info->snd_sid = inp->def_send.sinfo_stream;
3189                                         info->snd_flags = inp->def_send.sinfo_flags;
3190                                         info->snd_flags &= 0xfff0;
3191                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3192                                         info->snd_context = inp->def_send.sinfo_context;
3193                                         SCTP_INP_RUNLOCK(inp);
3194                                 } else {
3195                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3196                                         error = EINVAL;
3197                                 }
3198                         }
3199                         if (error == 0) {
3200                                 *optsize = sizeof(struct sctp_sndinfo);
3201                         }
3202                         break;
3203                 }
3204         case SCTP_DEFAULT_PRINFO:
3205                 {
3206                         struct sctp_default_prinfo *info;
3207
3208                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3209                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3210
3211                         if (stcb) {
3212                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3213                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3214                                 SCTP_TCB_UNLOCK(stcb);
3215                         } else {
3216                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3217                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3218                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3219                                         SCTP_INP_RLOCK(inp);
3220                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3221                                         info->pr_value = inp->def_send.sinfo_timetolive;
3222                                         SCTP_INP_RUNLOCK(inp);
3223                                 } else {
3224                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3225                                         error = EINVAL;
3226                                 }
3227                         }
3228                         if (error == 0) {
3229                                 *optsize = sizeof(struct sctp_default_prinfo);
3230                         }
3231                         break;
3232                 }
3233         case SCTP_PEER_ADDR_THLDS:
3234                 {
3235                         struct sctp_paddrthlds *thlds;
3236                         struct sctp_nets *net;
3237                         struct sockaddr *addr;
3238
3239 #if defined(INET) && defined(INET6)
3240                         struct sockaddr_in sin_store;
3241
3242 #endif
3243
3244                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3245                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3246
3247 #if defined(INET) && defined(INET6)
3248                         if (thlds->spt_address.ss_family == AF_INET6) {
3249                                 struct sockaddr_in6 *sin6;
3250
3251                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3252                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3253                                         in6_sin6_2_sin(&sin_store, sin6);
3254                                         addr = (struct sockaddr *)&sin_store;
3255                                 } else {
3256                                         addr = (struct sockaddr *)&thlds->spt_address;
3257                                 }
3258                         } else {
3259                                 addr = (struct sockaddr *)&thlds->spt_address;
3260                         }
3261 #else
3262                         addr = (struct sockaddr *)&thlds->spt_address;
3263 #endif
3264                         if (stcb != NULL) {
3265                                 net = sctp_findnet(stcb, addr);
3266                         } else {
3267                                 /*
3268                                  * We increment here since
3269                                  * sctp_findassociation_ep_addr() wil do a
3270                                  * decrement if it finds the stcb as long as
3271                                  * the locked tcb (last argument) is NOT a
3272                                  * TCB.. aka NULL.
3273                                  */
3274                                 net = NULL;
3275                                 SCTP_INP_INCR_REF(inp);
3276                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3277                                 if (stcb == NULL) {
3278                                         SCTP_INP_DECR_REF(inp);
3279                                 }
3280                         }
3281                         if ((stcb != NULL) && (net == NULL)) {
3282 #ifdef INET
3283                                 if (addr->sa_family == AF_INET) {
3284                                         struct sockaddr_in *sin;
3285
3286                                         sin = (struct sockaddr_in *)addr;
3287                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3288                                                 error = EINVAL;
3289                                                 SCTP_TCB_UNLOCK(stcb);
3290                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3291                                                 break;
3292                                         }
3293                                 } else
3294 #endif
3295 #ifdef INET6
3296                                 if (addr->sa_family == AF_INET6) {
3297                                         struct sockaddr_in6 *sin6;
3298
3299                                         sin6 = (struct sockaddr_in6 *)addr;
3300                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3301                                                 error = EINVAL;
3302                                                 SCTP_TCB_UNLOCK(stcb);
3303                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3304                                                 break;
3305                                         }
3306                                 } else
3307 #endif
3308                                 {
3309                                         error = EAFNOSUPPORT;
3310                                         SCTP_TCB_UNLOCK(stcb);
3311                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3312                                         break;
3313                                 }
3314                         }
3315                         if (stcb != NULL) {
3316                                 if (net != NULL) {
3317                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3318                                         thlds->spt_pathpfthld = net->pf_threshold;
3319                                 } else {
3320                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3321                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3322                                 }
3323                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3324                                 SCTP_TCB_UNLOCK(stcb);
3325                         } else {
3326                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3327                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3328                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3329                                         /* Use endpoint defaults */
3330                                         SCTP_INP_RLOCK(inp);
3331                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3332                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3333                                         SCTP_INP_RUNLOCK(inp);
3334                                 } else {
3335                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3336                                         error = EINVAL;
3337                                 }
3338                         }
3339                         if (error == 0) {
3340                                 *optsize = sizeof(struct sctp_paddrthlds);
3341                         }
3342                         break;
3343                 }
3344         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3345                 {
3346                         struct sctp_udpencaps *encaps;
3347                         struct sctp_nets *net;
3348                         struct sockaddr *addr;
3349
3350 #if defined(INET) && defined(INET6)
3351                         struct sockaddr_in sin_store;
3352
3353 #endif
3354
3355                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3356                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3357
3358 #if defined(INET) && defined(INET6)
3359                         if (encaps->sue_address.ss_family == AF_INET6) {
3360                                 struct sockaddr_in6 *sin6;
3361
3362                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3363                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3364                                         in6_sin6_2_sin(&sin_store, sin6);
3365                                         addr = (struct sockaddr *)&sin_store;
3366                                 } else {
3367                                         addr = (struct sockaddr *)&encaps->sue_address;
3368                                 }
3369                         } else {
3370                                 addr = (struct sockaddr *)&encaps->sue_address;
3371                         }
3372 #else
3373                         addr = (struct sockaddr *)&encaps->sue_address;
3374 #endif
3375                         if (stcb) {
3376                                 net = sctp_findnet(stcb, addr);
3377                         } else {
3378                                 /*
3379                                  * We increment here since
3380                                  * sctp_findassociation_ep_addr() wil do a
3381                                  * decrement if it finds the stcb as long as
3382                                  * the locked tcb (last argument) is NOT a
3383                                  * TCB.. aka NULL.
3384                                  */
3385                                 net = NULL;
3386                                 SCTP_INP_INCR_REF(inp);
3387                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3388                                 if (stcb == NULL) {
3389                                         SCTP_INP_DECR_REF(inp);
3390                                 }
3391                         }
3392                         if ((stcb != NULL) && (net == NULL)) {
3393 #ifdef INET
3394                                 if (addr->sa_family == AF_INET) {
3395                                         struct sockaddr_in *sin;
3396
3397                                         sin = (struct sockaddr_in *)addr;
3398                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3399                                                 error = EINVAL;
3400                                                 SCTP_TCB_UNLOCK(stcb);
3401                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3402                                                 break;
3403                                         }
3404                                 } else
3405 #endif
3406 #ifdef INET6
3407                                 if (addr->sa_family == AF_INET6) {
3408                                         struct sockaddr_in6 *sin6;
3409
3410                                         sin6 = (struct sockaddr_in6 *)addr;
3411                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3412                                                 error = EINVAL;
3413                                                 SCTP_TCB_UNLOCK(stcb);
3414                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3415                                                 break;
3416                                         }
3417                                 } else
3418 #endif
3419                                 {
3420                                         error = EAFNOSUPPORT;
3421                                         SCTP_TCB_UNLOCK(stcb);
3422                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3423                                         break;
3424                                 }
3425                         }
3426                         if (stcb != NULL) {
3427                                 if (net) {
3428                                         encaps->sue_port = net->port;
3429                                 } else {
3430                                         encaps->sue_port = stcb->asoc.port;
3431                                 }
3432                                 SCTP_TCB_UNLOCK(stcb);
3433                         } else {
3434                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3435                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3436                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3437                                         SCTP_INP_RLOCK(inp);
3438                                         encaps->sue_port = inp->sctp_ep.port;
3439                                         SCTP_INP_RUNLOCK(inp);
3440                                 } else {
3441                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3442                                         error = EINVAL;
3443                                 }
3444                         }
3445                         if (error == 0) {
3446                                 *optsize = sizeof(struct sctp_udpencaps);
3447                         }
3448                         break;
3449                 }
3450         case SCTP_ECN_SUPPORTED:
3451                 {
3452                         struct sctp_assoc_value *av;
3453
3454                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3455                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3456
3457                         if (stcb) {
3458                                 av->assoc_value = stcb->asoc.ecn_supported;
3459                                 SCTP_TCB_UNLOCK(stcb);
3460                         } else {
3461                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3462                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3463                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3464                                         SCTP_INP_RLOCK(inp);
3465                                         av->assoc_value = inp->ecn_supported;
3466                                         SCTP_INP_RUNLOCK(inp);
3467                                 } else {
3468                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3469                                         error = EINVAL;
3470                                 }
3471                         }
3472                         if (error == 0) {
3473                                 *optsize = sizeof(struct sctp_assoc_value);
3474                         }
3475                         break;
3476                 }
3477         case SCTP_PR_SUPPORTED:
3478                 {
3479                         struct sctp_assoc_value *av;
3480
3481                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3482                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3483
3484                         if (stcb) {
3485                                 av->assoc_value = stcb->asoc.prsctp_supported;
3486                                 SCTP_TCB_UNLOCK(stcb);
3487                         } else {
3488                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3489                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3490                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3491                                         SCTP_INP_RLOCK(inp);
3492                                         av->assoc_value = inp->prsctp_supported;
3493                                         SCTP_INP_RUNLOCK(inp);
3494                                 } else {
3495                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3496                                         error = EINVAL;
3497                                 }
3498                         }
3499                         if (error == 0) {
3500                                 *optsize = sizeof(struct sctp_assoc_value);
3501                         }
3502                         break;
3503                 }
3504         case SCTP_AUTH_SUPPORTED:
3505                 {
3506                         struct sctp_assoc_value *av;
3507
3508                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3509                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3510
3511                         if (stcb) {
3512                                 av->assoc_value = stcb->asoc.auth_supported;
3513                                 SCTP_TCB_UNLOCK(stcb);
3514                         } else {
3515                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3516                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3517                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3518                                         SCTP_INP_RLOCK(inp);
3519                                         av->assoc_value = inp->auth_supported;
3520                                         SCTP_INP_RUNLOCK(inp);
3521                                 } else {
3522                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3523                                         error = EINVAL;
3524                                 }
3525                         }
3526                         if (error == 0) {
3527                                 *optsize = sizeof(struct sctp_assoc_value);
3528                         }
3529                         break;
3530                 }
3531         case SCTP_ASCONF_SUPPORTED:
3532                 {
3533                         struct sctp_assoc_value *av;
3534
3535                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3536                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3537
3538                         if (stcb) {
3539                                 av->assoc_value = stcb->asoc.asconf_supported;
3540                                 SCTP_TCB_UNLOCK(stcb);
3541                         } else {
3542                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3543                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3544                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3545                                         SCTP_INP_RLOCK(inp);
3546                                         av->assoc_value = inp->asconf_supported;
3547                                         SCTP_INP_RUNLOCK(inp);
3548                                 } else {
3549                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3550                                         error = EINVAL;
3551                                 }
3552                         }
3553                         if (error == 0) {
3554                                 *optsize = sizeof(struct sctp_assoc_value);
3555                         }
3556                         break;
3557                 }
3558         case SCTP_RECONFIG_SUPPORTED:
3559                 {
3560                         struct sctp_assoc_value *av;
3561
3562                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3563                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3564
3565                         if (stcb) {
3566                                 av->assoc_value = stcb->asoc.reconfig_supported;
3567                                 SCTP_TCB_UNLOCK(stcb);
3568                         } else {
3569                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3570                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3571                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3572                                         SCTP_INP_RLOCK(inp);
3573                                         av->assoc_value = inp->reconfig_supported;
3574                                         SCTP_INP_RUNLOCK(inp);
3575                                 } else {
3576                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3577                                         error = EINVAL;
3578                                 }
3579                         }
3580                         if (error == 0) {
3581                                 *optsize = sizeof(struct sctp_assoc_value);
3582                         }
3583                         break;
3584                 }
3585         case SCTP_NRSACK_SUPPORTED:
3586                 {
3587                         struct sctp_assoc_value *av;
3588
3589                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3590                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3591
3592                         if (stcb) {
3593                                 av->assoc_value = stcb->asoc.nrsack_supported;
3594                                 SCTP_TCB_UNLOCK(stcb);
3595                         } else {
3596                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3597                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3598                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3599                                         SCTP_INP_RLOCK(inp);
3600                                         av->assoc_value = inp->nrsack_supported;
3601                                         SCTP_INP_RUNLOCK(inp);
3602                                 } else {
3603                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3604                                         error = EINVAL;
3605                                 }
3606                         }
3607                         if (error == 0) {
3608                                 *optsize = sizeof(struct sctp_assoc_value);
3609                         }
3610                         break;
3611                 }
3612         case SCTP_PKTDROP_SUPPORTED:
3613                 {
3614                         struct sctp_assoc_value *av;
3615
3616                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3617                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3618
3619                         if (stcb) {
3620                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3621                                 SCTP_TCB_UNLOCK(stcb);
3622                         } else {
3623                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3624                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3625                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3626                                         SCTP_INP_RLOCK(inp);
3627                                         av->assoc_value = inp->pktdrop_supported;
3628                                         SCTP_INP_RUNLOCK(inp);
3629                                 } else {
3630                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3631                                         error = EINVAL;
3632                                 }
3633                         }
3634                         if (error == 0) {
3635                                 *optsize = sizeof(struct sctp_assoc_value);
3636                         }
3637                         break;
3638                 }
3639         case SCTP_ENABLE_STREAM_RESET:
3640                 {
3641                         struct sctp_assoc_value *av;
3642
3643                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3644                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3645
3646                         if (stcb) {
3647                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3648                                 SCTP_TCB_UNLOCK(stcb);
3649                         } else {
3650                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3651                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3652                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3653                                         SCTP_INP_RLOCK(inp);
3654                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3655                                         SCTP_INP_RUNLOCK(inp);
3656                                 } else {
3657                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3658                                         error = EINVAL;
3659                                 }
3660                         }
3661                         if (error == 0) {
3662                                 *optsize = sizeof(struct sctp_assoc_value);
3663                         }
3664                         break;
3665                 }
3666         case SCTP_PR_STREAM_STATUS:
3667                 {
3668                         struct sctp_prstatus *sprstat;
3669                         uint16_t sid;
3670                         uint16_t policy;
3671
3672                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3673                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3674
3675                         sid = sprstat->sprstat_sid;
3676                         policy = sprstat->sprstat_policy;
3677 #if defined(SCTP_DETAILED_STR_STATS)
3678                         if ((stcb != NULL) &&
3679                             (sid < stcb->asoc.streamoutcnt) &&
3680                             (policy != SCTP_PR_SCTP_NONE) &&
3681                             ((policy <= SCTP_PR_SCTP_MAX) ||
3682                             (policy == SCTP_PR_SCTP_ALL))) {
3683                                 if (policy == SCTP_PR_SCTP_ALL) {
3684                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3685                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3686                                 } else {
3687                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3688                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3689                                 }
3690 #else
3691                         if ((stcb != NULL) &&
3692                             (sid < stcb->asoc.streamoutcnt) &&
3693                             (policy == SCTP_PR_SCTP_ALL)) {
3694                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3695                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3696 #endif
3697                                 SCTP_TCB_UNLOCK(stcb);
3698                                 *optsize = sizeof(struct sctp_prstatus);
3699                         } else {
3700                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3701                                 error = EINVAL;
3702                         }
3703                         break;
3704                 }
3705         case SCTP_PR_ASSOC_STATUS:
3706                 {
3707                         struct sctp_prstatus *sprstat;
3708                         uint16_t policy;
3709
3710                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3711                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3712
3713                         policy = sprstat->sprstat_policy;
3714                         if ((stcb != NULL) &&
3715                             (policy != SCTP_PR_SCTP_NONE) &&
3716                             ((policy <= SCTP_PR_SCTP_MAX) ||
3717                             (policy == SCTP_PR_SCTP_ALL))) {
3718                                 if (policy == SCTP_PR_SCTP_ALL) {
3719                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3720                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3721                                 } else {
3722                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3723                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3724                                 }
3725                                 SCTP_TCB_UNLOCK(stcb);
3726                                 *optsize = sizeof(struct sctp_prstatus);
3727                         } else {
3728                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3729                                 error = EINVAL;
3730                         }
3731                         break;
3732                 }
3733         case SCTP_MAX_CWND:
3734                 {
3735                         struct sctp_assoc_value *av;
3736
3737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3739
3740                         if (stcb) {
3741                                 av->assoc_value = stcb->asoc.max_cwnd;
3742                                 SCTP_TCB_UNLOCK(stcb);
3743                         } else {
3744                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3745                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3746                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3747                                         SCTP_INP_RLOCK(inp);
3748                                         av->assoc_value = inp->max_cwnd;
3749                                         SCTP_INP_RUNLOCK(inp);
3750                                 } else {
3751                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3752                                         error = EINVAL;
3753                                 }
3754                         }
3755                         if (error == 0) {
3756                                 *optsize = sizeof(struct sctp_assoc_value);
3757                         }
3758                         break;
3759                 }
3760         default:
3761                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3762                 error = ENOPROTOOPT;
3763                 break;
3764         }                       /* end switch (sopt->sopt_name) */
3765         if (error) {
3766                 *optsize = 0;
3767         }
3768         return (error);
3769 }
3770
3771 static int
3772 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3773     void *p)
3774 {
3775         int error, set_opt;
3776         uint32_t *mopt;
3777         struct sctp_tcb *stcb = NULL;
3778         struct sctp_inpcb *inp = NULL;
3779         uint32_t vrf_id;
3780
3781         if (optval == NULL) {
3782                 SCTP_PRINTF("optval is NULL\n");
3783                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3784                 return (EINVAL);
3785         }
3786         inp = (struct sctp_inpcb *)so->so_pcb;
3787         if (inp == NULL) {
3788                 SCTP_PRINTF("inp is NULL?\n");
3789                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3790                 return (EINVAL);
3791         }
3792         vrf_id = inp->def_vrf_id;
3793
3794         error = 0;
3795         switch (optname) {
3796         case SCTP_NODELAY:
3797         case SCTP_AUTOCLOSE:
3798         case SCTP_AUTO_ASCONF:
3799         case SCTP_EXPLICIT_EOR:
3800         case SCTP_DISABLE_FRAGMENTS:
3801         case SCTP_USE_EXT_RCVINFO:
3802         case SCTP_I_WANT_MAPPED_V4_ADDR:
3803                 /* copy in the option value */
3804                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3805                 set_opt = 0;
3806                 if (error)
3807                         break;
3808                 switch (optname) {
3809                 case SCTP_DISABLE_FRAGMENTS:
3810                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3811                         break;
3812                 case SCTP_AUTO_ASCONF:
3813                         /*
3814                          * NOTE: we don't really support this flag
3815                          */
3816                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3817                                 /* only valid for bound all sockets */
3818                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3819                                     (*mopt != 0)) {
3820                                         /* forbidden by admin */
3821                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3822                                         return (EPERM);
3823                                 }
3824                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3825                         } else {
3826                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3827                                 return (EINVAL);
3828                         }
3829                         break;
3830                 case SCTP_EXPLICIT_EOR:
3831                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3832                         break;
3833                 case SCTP_USE_EXT_RCVINFO:
3834                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3835                         break;
3836                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3837                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3838                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3839                         } else {
3840                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3841                                 return (EINVAL);
3842                         }
3843                         break;
3844                 case SCTP_NODELAY:
3845                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3846                         break;
3847                 case SCTP_AUTOCLOSE:
3848                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3849                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3850                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3851                                 return (EINVAL);
3852                         }
3853                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3854                         /*
3855                          * The value is in ticks. Note this does not effect
3856                          * old associations, only new ones.
3857                          */
3858                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3859                         break;
3860                 }
3861                 SCTP_INP_WLOCK(inp);
3862                 if (*mopt != 0) {
3863                         sctp_feature_on(inp, set_opt);
3864                 } else {
3865                         sctp_feature_off(inp, set_opt);
3866                 }
3867                 SCTP_INP_WUNLOCK(inp);
3868                 break;
3869         case SCTP_REUSE_PORT:
3870                 {
3871                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3872                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3873                                 /* Can't set it after we are bound */
3874                                 error = EINVAL;
3875                                 break;
3876                         }
3877                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3878                                 /* Can't do this for a 1-m socket */
3879                                 error = EINVAL;
3880                                 break;
3881                         }
3882                         if (optval)
3883                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3884                         else
3885                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3886                         break;
3887                 }
3888         case SCTP_PARTIAL_DELIVERY_POINT:
3889                 {
3890                         uint32_t *value;
3891
3892                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3893                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3894                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3895                                 error = EINVAL;
3896                                 break;
3897                         }
3898                         inp->partial_delivery_point = *value;
3899                         break;
3900                 }
3901         case SCTP_FRAGMENT_INTERLEAVE:
3902                 /* not yet until we re-write sctp_recvmsg() */
3903                 {
3904                         uint32_t *level;
3905
3906                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3907                         if (*level == SCTP_FRAG_LEVEL_2) {
3908                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3909                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3910                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3911                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3912                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3913                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3914                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3915                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3916
3917                         } else {
3918                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3919                                 error = EINVAL;
3920                         }
3921                         break;
3922                 }
3923         case SCTP_CMT_ON_OFF:
3924                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3925                         struct sctp_assoc_value *av;
3926
3927                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3928                         if (av->assoc_value > SCTP_CMT_MAX) {
3929                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3930                                 error = EINVAL;
3931                                 break;
3932                         }
3933                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3934                         if (stcb) {
3935                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3936                                 SCTP_TCB_UNLOCK(stcb);
3937                         } else {
3938                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3939                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3940                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3941                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3942                                         SCTP_INP_WLOCK(inp);
3943                                         inp->sctp_cmt_on_off = av->assoc_value;
3944                                         SCTP_INP_WUNLOCK(inp);
3945                                 }
3946                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3947                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3948                                         SCTP_INP_RLOCK(inp);
3949                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3950                                                 SCTP_TCB_LOCK(stcb);
3951                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3952                                                 SCTP_TCB_UNLOCK(stcb);
3953                                         }
3954                                         SCTP_INP_RUNLOCK(inp);
3955                                 }
3956                         }
3957                 } else {
3958                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3959                         error = ENOPROTOOPT;
3960                 }
3961                 break;
3962         case SCTP_PLUGGABLE_CC:
3963                 {
3964                         struct sctp_assoc_value *av;
3965                         struct sctp_nets *net;
3966
3967                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3968                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3969                             (av->assoc_value != SCTP_CC_HSTCP) &&
3970                             (av->assoc_value != SCTP_CC_HTCP) &&
3971                             (av->assoc_value != SCTP_CC_RTCC)) {
3972                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3973                                 error = EINVAL;
3974                                 break;
3975                         }
3976                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3977                         if (stcb) {
3978                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3979                                 stcb->asoc.congestion_control_module = av->assoc_value;
3980                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3981                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3982                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3983                                         }
3984                                 }
3985                                 SCTP_TCB_UNLOCK(stcb);
3986                         } else {
3987                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3988                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3989                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3990                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3991                                         SCTP_INP_WLOCK(inp);
3992                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3993                                         SCTP_INP_WUNLOCK(inp);
3994                                 }
3995                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3996                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3997                                         SCTP_INP_RLOCK(inp);
3998                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3999                                                 SCTP_TCB_LOCK(stcb);
4000                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4001                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4002                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4003                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4004                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4005                                                         }
4006                                                 }
4007                                                 SCTP_TCB_UNLOCK(stcb);
4008                                         }
4009                                         SCTP_INP_RUNLOCK(inp);
4010                                 }
4011                         }
4012                         break;
4013                 }
4014         case SCTP_CC_OPTION:
4015                 {
4016                         struct sctp_cc_option *cc_opt;
4017
4018                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4019                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4020                         if (stcb == NULL) {
4021                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4022                                         SCTP_INP_RLOCK(inp);
4023                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4024                                                 SCTP_TCB_LOCK(stcb);
4025                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4026                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4027                                                 }
4028                                                 SCTP_TCB_UNLOCK(stcb);
4029                                         }
4030                                         SCTP_INP_RUNLOCK(inp);
4031                                 } else {
4032                                         error = EINVAL;
4033                                 }
4034                         } else {
4035                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4036                                         error = ENOTSUP;
4037                                 } else {
4038                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4039                                             cc_opt);
4040                                 }
4041                                 SCTP_TCB_UNLOCK(stcb);
4042                         }
4043                         break;
4044                 }
4045         case SCTP_PLUGGABLE_SS:
4046                 {
4047                         struct sctp_assoc_value *av;
4048
4049                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4050                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4051                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4052                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4053                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4054                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4055                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4056                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4057                                 error = EINVAL;
4058                                 break;
4059                         }
4060                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4061                         if (stcb) {
4062                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4063                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4064                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4065                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4066                                 SCTP_TCB_UNLOCK(stcb);
4067                         } else {
4068                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4069                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4070                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4071                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4072                                         SCTP_INP_WLOCK(inp);
4073                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4074                                         SCTP_INP_WUNLOCK(inp);
4075                                 }
4076                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4077                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4078                                         SCTP_INP_RLOCK(inp);
4079                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4080                                                 SCTP_TCB_LOCK(stcb);
4081                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4082                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4083                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4084                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4085                                                 SCTP_TCB_UNLOCK(stcb);
4086                                         }
4087                                         SCTP_INP_RUNLOCK(inp);
4088                                 }
4089                         }
4090                         break;
4091                 }
4092         case SCTP_SS_VALUE:
4093                 {
4094                         struct sctp_stream_value *av;
4095
4096                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4097                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4098                         if (stcb) {
4099                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4100                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4101                                     av->stream_value) < 0)) {
4102                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4103                                         error = EINVAL;
4104                                 }
4105                                 SCTP_TCB_UNLOCK(stcb);
4106                         } else {
4107                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4108                                         SCTP_INP_RLOCK(inp);
4109                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4110                                                 SCTP_TCB_LOCK(stcb);
4111                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4112                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4113                                                             &stcb->asoc,
4114                                                             &stcb->asoc.strmout[av->stream_id],
4115                                                             av->stream_value);
4116                                                 }
4117                                                 SCTP_TCB_UNLOCK(stcb);
4118                                         }
4119                                         SCTP_INP_RUNLOCK(inp);
4120                                 } else {
4121                                         /*
4122                                          * Can't set stream value without
4123                                          * association
4124                                          */
4125                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4126                                         error = EINVAL;
4127                                 }
4128                         }
4129                         break;
4130                 }
4131         case SCTP_CLR_STAT_LOG:
4132                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4133                 error = EOPNOTSUPP;
4134                 break;
4135         case SCTP_CONTEXT:
4136                 {
4137                         struct sctp_assoc_value *av;
4138
4139                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4140                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4141
4142                         if (stcb) {
4143                                 stcb->asoc.context = av->assoc_value;
4144                                 SCTP_TCB_UNLOCK(stcb);
4145                         } else {
4146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4148                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4149                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4150                                         SCTP_INP_WLOCK(inp);
4151                                         inp->sctp_context = av->assoc_value;
4152                                         SCTP_INP_WUNLOCK(inp);
4153                                 }
4154                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4155                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4156                                         SCTP_INP_RLOCK(inp);
4157                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4158                                                 SCTP_TCB_LOCK(stcb);
4159                                                 stcb->asoc.context = av->assoc_value;
4160                                                 SCTP_TCB_UNLOCK(stcb);
4161                                         }
4162                                         SCTP_INP_RUNLOCK(inp);
4163                                 }
4164                         }
4165                         break;
4166                 }
4167         case SCTP_VRF_ID:
4168                 {
4169                         uint32_t *default_vrfid;
4170
4171                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4172                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4173                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4174                                 error = EINVAL;
4175                                 break;
4176                         }
4177                         inp->def_vrf_id = *default_vrfid;
4178                         break;
4179                 }
4180         case SCTP_DEL_VRF_ID:
4181                 {
4182                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4183                         error = EOPNOTSUPP;
4184                         break;
4185                 }
4186         case SCTP_ADD_VRF_ID:
4187                 {
4188                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4189                         error = EOPNOTSUPP;
4190                         break;
4191                 }
4192         case SCTP_DELAYED_SACK:
4193                 {
4194                         struct sctp_sack_info *sack;
4195
4196                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4197                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4198                         if (sack->sack_delay) {
4199                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4200                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4201                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4202                                         sack->sack_delay = TICKS_TO_MSEC(1);
4203                                 }
4204                         }
4205                         if (stcb) {
4206                                 if (sack->sack_delay) {
4207                                         stcb->asoc.delayed_ack = sack->sack_delay;
4208                                 }
4209                                 if (sack->sack_freq) {
4210                                         stcb->asoc.sack_freq = sack->sack_freq;
4211                                 }
4212                                 SCTP_TCB_UNLOCK(stcb);
4213                         } else {
4214                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4215                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4216                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4217                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4218                                         SCTP_INP_WLOCK(inp);
4219                                         if (sack->sack_delay) {
4220                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4221                                         }
4222                                         if (sack->sack_freq) {
4223                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4224                                         }
4225                                         SCTP_INP_WUNLOCK(inp);
4226                                 }
4227                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4228                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4229                                         SCTP_INP_RLOCK(inp);
4230                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4231                                                 SCTP_TCB_LOCK(stcb);
4232                                                 if (sack->sack_delay) {
4233                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4234                                                 }
4235                                                 if (sack->sack_freq) {
4236                                                         stcb->asoc.sack_freq = sack->sack_freq;
4237                                                 }
4238                                                 SCTP_TCB_UNLOCK(stcb);
4239                                         }
4240                                         SCTP_INP_RUNLOCK(inp);
4241                                 }
4242                         }
4243                         break;
4244                 }
4245         case SCTP_AUTH_CHUNK:
4246                 {
4247                         struct sctp_authchunk *sauth;
4248
4249                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4250
4251                         SCTP_INP_WLOCK(inp);
4252                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4253                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4254                                 error = EINVAL;
4255                         }
4256                         SCTP_INP_WUNLOCK(inp);
4257                         break;
4258                 }
4259         case SCTP_AUTH_KEY:
4260                 {
4261                         struct sctp_authkey *sca;
4262                         struct sctp_keyhead *shared_keys;
4263                         sctp_sharedkey_t *shared_key;
4264                         sctp_key_t *key = NULL;
4265                         size_t size;
4266
4267                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4268                         if (sca->sca_keylength == 0) {
4269                                 size = optsize - sizeof(struct sctp_authkey);
4270                         } else {
4271                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4272                                         size = sca->sca_keylength;
4273                                 } else {
4274                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4275                                         error = EINVAL;
4276                                         break;
4277                                 }
4278                         }
4279                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4280
4281                         if (stcb) {
4282                                 shared_keys = &stcb->asoc.shared_keys;
4283                                 /* clear the cached keys for this key id */
4284                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4285                                 /*
4286                                  * create the new shared key and
4287                                  * insert/replace it
4288                                  */
4289                                 if (size > 0) {
4290                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4291                                         if (key == NULL) {
4292                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4293                                                 error = ENOMEM;
4294                                                 SCTP_TCB_UNLOCK(stcb);
4295                                                 break;
4296                                         }
4297                                 }
4298                                 shared_key = sctp_alloc_sharedkey();
4299                                 if (shared_key == NULL) {
4300                                         sctp_free_key(key);
4301                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4302                                         error = ENOMEM;
4303                                         SCTP_TCB_UNLOCK(stcb);
4304                                         break;
4305                                 }
4306                                 shared_key->key = key;
4307                                 shared_key->keyid = sca->sca_keynumber;
4308                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4309                                 SCTP_TCB_UNLOCK(stcb);
4310                         } else {
4311                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4312                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4313                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4314                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4315                                         SCTP_INP_WLOCK(inp);
4316                                         shared_keys = &inp->sctp_ep.shared_keys;
4317                                         /*
4318                                          * clear the cached keys on all
4319                                          * assocs for this key id
4320                                          */
4321                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4322                                         /*
4323                                          * create the new shared key and
4324                                          * insert/replace it
4325                                          */
4326                                         if (size > 0) {
4327                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4328                                                 if (key == NULL) {
4329                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4330                                                         error = ENOMEM;
4331                                                         SCTP_INP_WUNLOCK(inp);
4332                                                         break;
4333                                                 }
4334                                         }
4335                                         shared_key = sctp_alloc_sharedkey();
4336                                         if (shared_key == NULL) {
4337                                                 sctp_free_key(key);
4338                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4339                                                 error = ENOMEM;
4340                                                 SCTP_INP_WUNLOCK(inp);
4341                                                 break;
4342                                         }
4343                                         shared_key->key = key;
4344                                         shared_key->keyid = sca->sca_keynumber;
4345                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4346                                         SCTP_INP_WUNLOCK(inp);
4347                                 }
4348                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4349                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4350                                         SCTP_INP_RLOCK(inp);
4351                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4352                                                 SCTP_TCB_LOCK(stcb);
4353                                                 shared_keys = &stcb->asoc.shared_keys;
4354                                                 /*
4355                                                  * clear the cached keys for
4356                                                  * this key id
4357                                                  */
4358                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4359                                                 /*
4360                                                  * create the new shared key
4361                                                  * and insert/replace it
4362                                                  */
4363                                                 if (size > 0) {
4364                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4365                                                         if (key == NULL) {
4366                                                                 SCTP_TCB_UNLOCK(stcb);
4367                                                                 continue;
4368                                                         }
4369                                                 }
4370                                                 shared_key = sctp_alloc_sharedkey();
4371                                                 if (shared_key == NULL) {
4372                                                         sctp_free_key(key);
4373                                                         SCTP_TCB_UNLOCK(stcb);
4374                                                         continue;
4375                                                 }
4376                                                 shared_key->key = key;
4377                                                 shared_key->keyid = sca->sca_keynumber;
4378                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4379                                                 SCTP_TCB_UNLOCK(stcb);
4380                                         }
4381                                         SCTP_INP_RUNLOCK(inp);
4382                                 }
4383                         }
4384                         break;
4385                 }
4386         case SCTP_HMAC_IDENT:
4387                 {
4388                         struct sctp_hmacalgo *shmac;
4389                         sctp_hmaclist_t *hmaclist;
4390                         uint16_t hmacid;
4391                         uint32_t i;
4392
4393                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4394                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4395                             (shmac->shmac_number_of_idents > 0xffff)) {
4396                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4397                                 error = EINVAL;
4398                                 break;
4399                         }
4400                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4401                         if (hmaclist == NULL) {
4402                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4403                                 error = ENOMEM;
4404                                 break;
4405                         }
4406                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4407                                 hmacid = shmac->shmac_idents[i];
4408                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4409                                          /* invalid HMACs were found */ ;
4410                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4411                                         error = EINVAL;
4412                                         sctp_free_hmaclist(hmaclist);
4413                                         goto sctp_set_hmac_done;
4414                                 }
4415                         }
4416                         for (i = 0; i < hmaclist->num_algo; i++) {
4417                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4418                                         /* already in list */
4419                                         break;
4420                                 }
4421                         }
4422                         if (i == hmaclist->num_algo) {
4423                                 /* not found in list */
4424                                 sctp_free_hmaclist(hmaclist);
4425                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4426                                 error = EINVAL;
4427                                 break;
4428                         }
4429                         /* set it on the endpoint */
4430                         SCTP_INP_WLOCK(inp);
4431                         if (inp->sctp_ep.local_hmacs)
4432                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4433                         inp->sctp_ep.local_hmacs = hmaclist;
4434                         SCTP_INP_WUNLOCK(inp);
4435         sctp_set_hmac_done:
4436                         break;
4437                 }
4438         case SCTP_AUTH_ACTIVE_KEY:
4439                 {
4440                         struct sctp_authkeyid *scact;
4441
4442                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4443                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4444
4445                         /* set the active key on the right place */
4446                         if (stcb) {
4447                                 /* set the active key on the assoc */
4448                                 if (sctp_auth_setactivekey(stcb,
4449                                     scact->scact_keynumber)) {
4450                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4451                                             SCTP_FROM_SCTP_USRREQ,
4452                                             EINVAL);
4453                                         error = EINVAL;
4454                                 }
4455                                 SCTP_TCB_UNLOCK(stcb);
4456                         } else {
4457                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4458                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4459                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4460                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4461                                         SCTP_INP_WLOCK(inp);
4462                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4463                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4464                                                 error = EINVAL;
4465                                         }
4466                                         SCTP_INP_WUNLOCK(inp);
4467                                 }
4468                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4469                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4470                                         SCTP_INP_RLOCK(inp);
4471                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4472                                                 SCTP_TCB_LOCK(stcb);
4473                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4474                                                 SCTP_TCB_UNLOCK(stcb);
4475                                         }
4476                                         SCTP_INP_RUNLOCK(inp);
4477                                 }
4478                         }
4479                         break;
4480                 }
4481         case SCTP_AUTH_DELETE_KEY:
4482                 {
4483                         struct sctp_authkeyid *scdel;
4484
4485                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4486                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4487
4488                         /* delete the key from the right place */
4489                         if (stcb) {
4490                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4491                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4492                                         error = EINVAL;
4493                                 }
4494                                 SCTP_TCB_UNLOCK(stcb);
4495                         } else {
4496                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4497                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4498                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4499                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4500                                         SCTP_INP_WLOCK(inp);
4501                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4502                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4503                                                 error = EINVAL;
4504                                         }
4505                                         SCTP_INP_WUNLOCK(inp);
4506                                 }
4507                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4508                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4509                                         SCTP_INP_RLOCK(inp);
4510                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4511                                                 SCTP_TCB_LOCK(stcb);
4512                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4513                                                 SCTP_TCB_UNLOCK(stcb);
4514                                         }
4515                                         SCTP_INP_RUNLOCK(inp);
4516                                 }
4517                         }
4518                         break;
4519                 }
4520         case SCTP_AUTH_DEACTIVATE_KEY:
4521                 {
4522                         struct sctp_authkeyid *keyid;
4523
4524                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4525                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4526
4527                         /* deactivate the key from the right place */
4528                         if (stcb) {
4529                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4530                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4531                                         error = EINVAL;
4532                                 }
4533                                 SCTP_TCB_UNLOCK(stcb);
4534                         } else {
4535                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4536                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4537                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4538                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4539                                         SCTP_INP_WLOCK(inp);
4540                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4541                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4542                                                 error = EINVAL;
4543                                         }
4544                                         SCTP_INP_WUNLOCK(inp);
4545                                 }
4546                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4547                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4548                                         SCTP_INP_RLOCK(inp);
4549                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4550                                                 SCTP_TCB_LOCK(stcb);
4551                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4552                                                 SCTP_TCB_UNLOCK(stcb);
4553                                         }
4554                                         SCTP_INP_RUNLOCK(inp);
4555                                 }
4556                         }
4557                         break;
4558                 }
4559         case SCTP_ENABLE_STREAM_RESET:
4560                 {
4561                         struct sctp_assoc_value *av;
4562
4563                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4564                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4565                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4566                                 error = EINVAL;
4567                                 break;
4568                         }
4569                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4570                         if (stcb) {
4571                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4572                                 SCTP_TCB_UNLOCK(stcb);
4573                         } else {
4574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4576                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4577                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4578                                         SCTP_INP_WLOCK(inp);
4579                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4580                                         SCTP_INP_WUNLOCK(inp);
4581                                 }
4582                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4583                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4584                                         SCTP_INP_RLOCK(inp);
4585                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4586                                                 SCTP_TCB_LOCK(stcb);
4587                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4588                                                 SCTP_TCB_UNLOCK(stcb);
4589                                         }
4590                                         SCTP_INP_RUNLOCK(inp);
4591                                 }
4592                         }
4593                         break;
4594                 }
4595         case SCTP_RESET_STREAMS:
4596                 {
4597                         struct sctp_reset_streams *strrst;
4598                         int i, send_out = 0;
4599                         int send_in = 0;
4600
4601                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4602                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4603                         if (stcb == NULL) {
4604                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4605                                 error = ENOENT;
4606                                 break;
4607                         }
4608                         if (stcb->asoc.reconfig_supported == 0) {
4609                                 /*
4610                                  * Peer does not support the chunk type.
4611                                  */
4612                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4613                                 error = EOPNOTSUPP;
4614                                 SCTP_TCB_UNLOCK(stcb);
4615                                 break;
4616                         }
4617                         if (sizeof(struct sctp_reset_streams) +
4618                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4619                                 error = EINVAL;
4620                                 SCTP_TCB_UNLOCK(stcb);
4621                                 break;
4622                         }
4623                         if (stcb->asoc.stream_reset_outstanding) {
4624                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4625                                 error = EALREADY;
4626                                 SCTP_TCB_UNLOCK(stcb);
4627                                 break;
4628                         }
4629                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4630                                 send_in = 1;
4631                         }
4632                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4633                                 send_out = 1;
4634                         }
4635                         if ((send_in == 0) && (send_out == 0)) {
4636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4637                                 error = EINVAL;
4638                                 SCTP_TCB_UNLOCK(stcb);
4639                                 break;
4640                         }
4641                         for (i = 0; i < strrst->srs_number_streams; i++) {
4642                                 if ((send_in) &&
4643                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4644                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4645                                         error = EINVAL;
4646                                         break;
4647                                 }
4648                                 if ((send_out) &&
4649                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4651                                         error = EINVAL;
4652                                         break;
4653                                 }
4654                         }
4655                         if (error) {
4656                                 SCTP_TCB_UNLOCK(stcb);
4657                                 break;
4658                         }
4659                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4660                             strrst->srs_stream_list,
4661                             send_out, send_in, 0, 0, 0, 0, 0);
4662
4663                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4664                         SCTP_TCB_UNLOCK(stcb);
4665                         break;
4666                 }
4667         case SCTP_ADD_STREAMS:
4668                 {
4669                         struct sctp_add_streams *stradd;
4670                         uint8_t addstream = 0;
4671                         uint16_t add_o_strmcnt = 0;
4672                         uint16_t add_i_strmcnt = 0;
4673
4674                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4675                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4676                         if (stcb == NULL) {
4677                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4678                                 error = ENOENT;
4679                                 break;
4680                         }
4681                         if (stcb->asoc.reconfig_supported == 0) {
4682                                 /*
4683                                  * Peer does not support the chunk type.
4684                                  */
4685                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4686                                 error = EOPNOTSUPP;
4687                                 SCTP_TCB_UNLOCK(stcb);
4688                                 break;
4689                         }
4690                         if (stcb->asoc.stream_reset_outstanding) {
4691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4692                                 error = EALREADY;
4693                                 SCTP_TCB_UNLOCK(stcb);
4694                                 break;
4695                         }
4696                         if ((stradd->sas_outstrms == 0) &&
4697                             (stradd->sas_instrms == 0)) {
4698                                 error = EINVAL;
4699                                 goto skip_stuff;
4700                         }
4701                         if (stradd->sas_outstrms) {
4702                                 addstream = 1;
4703                                 /* We allocate here */
4704                                 add_o_strmcnt = stradd->sas_outstrms;
4705                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4706                                         /* You can't have more than 64k */
4707                                         error = EINVAL;
4708                                         goto skip_stuff;
4709                                 }
4710                         }
4711                         if (stradd->sas_instrms) {
4712                                 int cnt;
4713
4714                                 addstream |= 2;
4715                                 /*
4716                                  * We allocate inside
4717                                  * sctp_send_str_reset_req()
4718                                  */
4719                                 add_i_strmcnt = stradd->sas_instrms;
4720                                 cnt = add_i_strmcnt;
4721                                 cnt += stcb->asoc.streamincnt;
4722                                 if (cnt > 0x0000ffff) {
4723                                         /* You can't have more than 64k */
4724                                         error = EINVAL;
4725                                         goto skip_stuff;
4726                                 }
4727                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4728                                         /* More than you are allowed */
4729                                         error = EINVAL;
4730                                         goto skip_stuff;
4731                                 }
4732                         }
4733                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4734                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4735         skip_stuff:
4736                         SCTP_TCB_UNLOCK(stcb);
4737                         break;
4738                 }
4739         case SCTP_RESET_ASSOC:
4740                 {
4741                         uint32_t *value;
4742
4743                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4744                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4745                         if (stcb == NULL) {
4746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4747                                 error = ENOENT;
4748                                 break;
4749                         }
4750                         if (stcb->asoc.reconfig_supported == 0) {
4751                                 /*
4752                                  * Peer does not support the chunk type.
4753                                  */
4754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4755                                 error = EOPNOTSUPP;
4756                                 SCTP_TCB_UNLOCK(stcb);
4757                                 break;
4758                         }
4759                         if (stcb->asoc.stream_reset_outstanding) {
4760                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4761                                 error = EALREADY;
4762                                 SCTP_TCB_UNLOCK(stcb);
4763                                 break;
4764                         }
4765                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4766                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4767                         SCTP_TCB_UNLOCK(stcb);
4768                         break;
4769                 }
4770         case SCTP_CONNECT_X:
4771                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4772                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4773                         error = EINVAL;
4774                         break;
4775                 }
4776                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4777                 break;
4778         case SCTP_CONNECT_X_DELAYED:
4779                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4780                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4781                         error = EINVAL;
4782                         break;
4783                 }
4784                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4785                 break;
4786         case SCTP_CONNECT_X_COMPLETE:
4787                 {
4788                         struct sockaddr *sa;
4789
4790                         /* FIXME MT: check correct? */
4791                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4792
4793                         /* find tcb */
4794                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4795                                 SCTP_INP_RLOCK(inp);
4796                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4797                                 if (stcb) {
4798                                         SCTP_TCB_LOCK(stcb);
4799                                 }
4800                                 SCTP_INP_RUNLOCK(inp);
4801                         } else {
4802                                 /*
4803                                  * We increment here since
4804                                  * sctp_findassociation_ep_addr() wil do a
4805                                  * decrement if it finds the stcb as long as
4806                                  * the locked tcb (last argument) is NOT a
4807                                  * TCB.. aka NULL.
4808                                  */
4809                                 SCTP_INP_INCR_REF(inp);
4810                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4811                                 if (stcb == NULL) {
4812                                         SCTP_INP_DECR_REF(inp);
4813                                 }
4814                         }
4815
4816                         if (stcb == NULL) {
4817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4818                                 error = ENOENT;
4819                                 break;
4820                         }
4821                         if (stcb->asoc.delayed_connection == 1) {
4822                                 stcb->asoc.delayed_connection = 0;
4823                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4824                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4825                                     stcb->asoc.primary_destination,
4826                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4827                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4828                         } else {
4829                                 /*
4830                                  * already expired or did not use delayed
4831                                  * connectx
4832                                  */
4833                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4834                                 error = EALREADY;
4835                         }
4836                         SCTP_TCB_UNLOCK(stcb);
4837                         break;
4838                 }
4839         case SCTP_MAX_BURST:
4840                 {
4841                         struct sctp_assoc_value *av;
4842
4843                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4844                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4845
4846                         if (stcb) {
4847                                 stcb->asoc.max_burst = av->assoc_value;
4848                                 SCTP_TCB_UNLOCK(stcb);
4849                         } else {
4850                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4851                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4852                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4853                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4854                                         SCTP_INP_WLOCK(inp);
4855                                         inp->sctp_ep.max_burst = av->assoc_value;
4856                                         SCTP_INP_WUNLOCK(inp);
4857                                 }
4858                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4859                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4860                                         SCTP_INP_RLOCK(inp);
4861                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4862                                                 SCTP_TCB_LOCK(stcb);
4863                                                 stcb->asoc.max_burst = av->assoc_value;
4864                                                 SCTP_TCB_UNLOCK(stcb);
4865                                         }
4866                                         SCTP_INP_RUNLOCK(inp);
4867                                 }
4868                         }
4869                         break;
4870                 }
4871         case SCTP_MAXSEG:
4872                 {
4873                         struct sctp_assoc_value *av;
4874                         int ovh;
4875
4876                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4877                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4878
4879                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4880                                 ovh = SCTP_MED_OVERHEAD;
4881                         } else {
4882                                 ovh = SCTP_MED_V4_OVERHEAD;
4883                         }
4884                         if (stcb) {
4885                                 if (av->assoc_value) {
4886                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4887                                 } else {
4888                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4889                                 }
4890                                 SCTP_TCB_UNLOCK(stcb);
4891                         } else {
4892                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4893                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4894                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4895                                         SCTP_INP_WLOCK(inp);
4896                                         /*
4897                                          * FIXME MT: I think this is not in
4898                                          * tune with the API ID
4899                                          */
4900                                         if (av->assoc_value) {
4901                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4902                                         } else {
4903                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4904                                         }
4905                                         SCTP_INP_WUNLOCK(inp);
4906                                 } else {
4907                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4908                                         error = EINVAL;
4909                                 }
4910                         }
4911                         break;
4912                 }
4913         case SCTP_EVENTS:
4914                 {
4915                         struct sctp_event_subscribe *events;
4916
4917                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4918
4919                         SCTP_INP_WLOCK(inp);
4920                         if (events->sctp_data_io_event) {
4921                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4922                         } else {
4923                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4924                         }
4925
4926                         if (events->sctp_association_event) {
4927                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4928                         } else {
4929                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4930                         }
4931
4932                         if (events->sctp_address_event) {
4933                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4934                         } else {
4935                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4936                         }
4937
4938                         if (events->sctp_send_failure_event) {
4939                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4940                         } else {
4941                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4942                         }
4943
4944                         if (events->sctp_peer_error_event) {
4945                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4946                         } else {
4947                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4948                         }
4949
4950                         if (events->sctp_shutdown_event) {
4951                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4952                         } else {
4953                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4954                         }
4955
4956                         if (events->sctp_partial_delivery_event) {
4957                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4958                         } else {
4959                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4960                         }
4961
4962                         if (events->sctp_adaptation_layer_event) {
4963                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4964                         } else {
4965                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4966                         }
4967
4968                         if (events->sctp_authentication_event) {
4969                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4970                         } else {
4971                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4972                         }
4973
4974                         if (events->sctp_sender_dry_event) {
4975                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4976                         } else {
4977                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4978                         }
4979
4980                         if (events->sctp_stream_reset_event) {
4981                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4982                         } else {
4983                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4984                         }
4985                         SCTP_INP_WUNLOCK(inp);
4986
4987                         SCTP_INP_RLOCK(inp);
4988                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4989                                 SCTP_TCB_LOCK(stcb);
4990                                 if (events->sctp_association_event) {
4991                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4992                                 } else {
4993                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4994                                 }
4995                                 if (events->sctp_address_event) {
4996                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4997                                 } else {
4998                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4999                                 }
5000                                 if (events->sctp_send_failure_event) {
5001                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5002                                 } else {
5003                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5004                                 }
5005                                 if (events->sctp_peer_error_event) {
5006                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5007                                 } else {
5008                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5009                                 }
5010                                 if (events->sctp_shutdown_event) {
5011                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5012                                 } else {
5013                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5014                                 }
5015                                 if (events->sctp_partial_delivery_event) {
5016                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5017                                 } else {
5018                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5019                                 }
5020                                 if (events->sctp_adaptation_layer_event) {
5021                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5022                                 } else {
5023                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5024                                 }
5025                                 if (events->sctp_authentication_event) {
5026                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5027                                 } else {
5028                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5029                                 }
5030                                 if (events->sctp_sender_dry_event) {
5031                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5032                                 } else {
5033                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5034                                 }
5035                                 if (events->sctp_stream_reset_event) {
5036                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5037                                 } else {
5038                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5039                                 }
5040                                 SCTP_TCB_UNLOCK(stcb);
5041                         }
5042                         /*
5043                          * Send up the sender dry event only for 1-to-1
5044                          * style sockets.
5045                          */
5046                         if (events->sctp_sender_dry_event) {
5047                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5048                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5049                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5050                                         if (stcb) {
5051                                                 SCTP_TCB_LOCK(stcb);
5052                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5053                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5054                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5055                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5056                                                 }
5057                                                 SCTP_TCB_UNLOCK(stcb);
5058                                         }
5059                                 }
5060                         }
5061                         SCTP_INP_RUNLOCK(inp);
5062                         break;
5063                 }
5064         case SCTP_ADAPTATION_LAYER:
5065                 {
5066                         struct sctp_setadaptation *adap_bits;
5067
5068                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5069                         SCTP_INP_WLOCK(inp);
5070                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5071                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5072                         SCTP_INP_WUNLOCK(inp);
5073                         break;
5074                 }
5075 #ifdef SCTP_DEBUG
5076         case SCTP_SET_INITIAL_DBG_SEQ:
5077                 {
5078                         uint32_t *vvv;
5079
5080                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5081                         SCTP_INP_WLOCK(inp);
5082                         inp->sctp_ep.initial_sequence_debug = *vvv;
5083                         SCTP_INP_WUNLOCK(inp);
5084                         break;
5085                 }
5086 #endif
5087         case SCTP_DEFAULT_SEND_PARAM:
5088                 {
5089                         struct sctp_sndrcvinfo *s_info;
5090
5091                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5092                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5093
5094                         if (stcb) {
5095                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5096                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5097                                 } else {
5098                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5099                                         error = EINVAL;
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                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5106                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5107                                         SCTP_INP_WLOCK(inp);
5108                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5109                                         SCTP_INP_WUNLOCK(inp);
5110                                 }
5111                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5112                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5113                                         SCTP_INP_RLOCK(inp);
5114                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5115                                                 SCTP_TCB_LOCK(stcb);
5116                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5117                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5118                                                 }
5119                                                 SCTP_TCB_UNLOCK(stcb);
5120                                         }
5121                                         SCTP_INP_RUNLOCK(inp);
5122                                 }
5123                         }
5124                         break;
5125                 }
5126         case SCTP_PEER_ADDR_PARAMS:
5127                 {
5128                         struct sctp_paddrparams *paddrp;
5129                         struct sctp_nets *net;
5130                         struct sockaddr *addr;
5131
5132 #if defined(INET) && defined(INET6)
5133                         struct sockaddr_in sin_store;
5134
5135 #endif
5136
5137                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5138                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5139
5140 #if defined(INET) && defined(INET6)
5141                         if (paddrp->spp_address.ss_family == AF_INET6) {
5142                                 struct sockaddr_in6 *sin6;
5143
5144                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5145                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5146                                         in6_sin6_2_sin(&sin_store, sin6);
5147                                         addr = (struct sockaddr *)&sin_store;
5148                                 } else {
5149                                         addr = (struct sockaddr *)&paddrp->spp_address;
5150                                 }
5151                         } else {
5152                                 addr = (struct sockaddr *)&paddrp->spp_address;
5153                         }
5154 #else
5155                         addr = (struct sockaddr *)&paddrp->spp_address;
5156 #endif
5157                         if (stcb != NULL) {
5158                                 net = sctp_findnet(stcb, addr);
5159                         } else {
5160                                 /*
5161                                  * We increment here since
5162                                  * sctp_findassociation_ep_addr() wil do a
5163                                  * decrement if it finds the stcb as long as
5164                                  * the locked tcb (last argument) is NOT a
5165                                  * TCB.. aka NULL.
5166                                  */
5167                                 net = NULL;
5168                                 SCTP_INP_INCR_REF(inp);
5169                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5170                                     &net, NULL, NULL);
5171                                 if (stcb == NULL) {
5172                                         SCTP_INP_DECR_REF(inp);
5173                                 }
5174                         }
5175                         if ((stcb != NULL) && (net == NULL)) {
5176 #ifdef INET
5177                                 if (addr->sa_family == AF_INET) {
5178
5179                                         struct sockaddr_in *sin;
5180
5181                                         sin = (struct sockaddr_in *)addr;
5182                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5183                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5184                                                 SCTP_TCB_UNLOCK(stcb);
5185                                                 error = EINVAL;
5186                                                 break;
5187                                         }
5188                                 } else
5189 #endif
5190 #ifdef INET6
5191                                 if (addr->sa_family == AF_INET6) {
5192                                         struct sockaddr_in6 *sin6;
5193
5194                                         sin6 = (struct sockaddr_in6 *)addr;
5195                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5196                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5197                                                 SCTP_TCB_UNLOCK(stcb);
5198                                                 error = EINVAL;
5199                                                 break;
5200                                         }
5201                                 } else
5202 #endif
5203                                 {
5204                                         error = EAFNOSUPPORT;
5205                                         SCTP_TCB_UNLOCK(stcb);
5206                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5207                                         break;
5208                                 }
5209                         }
5210                         /* sanity checks */
5211                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5212                                 if (stcb)
5213                                         SCTP_TCB_UNLOCK(stcb);
5214                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5215                                 return (EINVAL);
5216                         }
5217                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5218                                 if (stcb)
5219                                         SCTP_TCB_UNLOCK(stcb);
5220                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5221                                 return (EINVAL);
5222                         }
5223                         if (stcb != NULL) {
5224                                 /************************TCB SPECIFIC SET ******************/
5225                                 if (net != NULL) {
5226                                         /************************NET SPECIFIC SET ******************/
5227                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5228                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5229                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5230                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5231                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5232                                                 }
5233                                                 net->dest_state |= SCTP_ADDR_NOHB;
5234                                         }
5235                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5236                                                 if (paddrp->spp_hbinterval) {
5237                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5238                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5239                                                         net->heart_beat_delay = 0;
5240                                                 }
5241                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5242                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5243                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5244                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5245                                         }
5246                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5247                                                 /* on demand HB */
5248                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5249                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5250                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5251                                         }
5252                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5253                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5254                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5255                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5256                                                 }
5257                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5258                                                 net->mtu = paddrp->spp_pathmtu;
5259                                                 switch (net->ro._l_addr.sa.sa_family) {
5260 #ifdef INET
5261                                                 case AF_INET:
5262                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5263                                                         break;
5264 #endif
5265 #ifdef INET6
5266                                                 case AF_INET6:
5267                                                         net->mtu += SCTP_MIN_OVERHEAD;
5268                                                         break;
5269 #endif
5270                                                 default:
5271                                                         break;
5272                                                 }
5273                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5274                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5275                                                 }
5276                                         }
5277                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5278                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5279                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5280                                                 }
5281                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5282                                         }
5283                                         if (paddrp->spp_pathmaxrxt) {
5284                                                 if (net->dest_state & SCTP_ADDR_PF) {
5285                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5286                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5287                                                         }
5288                                                 } else {
5289                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5290                                                             (net->error_count > net->pf_threshold)) {
5291                                                                 net->dest_state |= SCTP_ADDR_PF;
5292                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5293                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5294                                                                     stcb->sctp_ep, stcb, net,
5295                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5296                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5297                                                         }
5298                                                 }
5299                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5300                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5301                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5302                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5303                                                         }
5304                                                 } else {
5305                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5306                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5307                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5308                                                         }
5309                                                 }
5310                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5311                                         }
5312                                         if (paddrp->spp_flags & SPP_DSCP) {
5313                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5314                                                 net->dscp |= 0x01;
5315                                         }
5316 #ifdef INET6
5317                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5318                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5319                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5320                                                         net->flowlabel |= 0x80000000;
5321                                                 }
5322                                         }
5323 #endif
5324                                 } else {
5325                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5326                                         if (paddrp->spp_pathmaxrxt != 0) {
5327                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5328                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5329                                                         if (net->dest_state & SCTP_ADDR_PF) {
5330                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5331                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5332                                                                 }
5333                                                         } else {
5334                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5335                                                                     (net->error_count > net->pf_threshold)) {
5336                                                                         net->dest_state |= SCTP_ADDR_PF;
5337                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5338                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5339                                                                             stcb->sctp_ep, stcb, net,
5340                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5341                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5342                                                                 }
5343                                                         }
5344                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5345                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5346                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5347                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5348                                                                 }
5349                                                         } else {
5350                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5351                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5352                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5353                                                                 }
5354                                                         }
5355                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5356                                                 }
5357                                         }
5358                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5359                                                 if (paddrp->spp_hbinterval != 0) {
5360                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5361                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5362                                                         stcb->asoc.heart_beat_delay = 0;
5363                                                 }
5364                                                 /* Turn back on the timer */
5365                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5366                                                         if (paddrp->spp_hbinterval != 0) {
5367                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5368                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5369                                                                 net->heart_beat_delay = 0;
5370                                                         }
5371                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5372                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5373                                                         }
5374                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5375                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5376                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5377                                                 }
5378                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5379                                         }
5380                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5381                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5382                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5383                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5384                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5385                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5386                                                                             inp, stcb, net,
5387                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5388                                                                 }
5389                                                         }
5390                                                 }
5391                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5392                                         }
5393                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5394                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5395                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5396                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5397                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5398                                                         }
5399                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5400                                                         net->mtu = paddrp->spp_pathmtu;
5401                                                         switch (net->ro._l_addr.sa.sa_family) {
5402 #ifdef INET
5403                                                         case AF_INET:
5404                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5405                                                                 break;
5406 #endif
5407 #ifdef INET6
5408                                                         case AF_INET6:
5409                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5410                                                                 break;
5411 #endif
5412                                                         default:
5413                                                                 break;
5414                                                         }
5415                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5416                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5417                                                         }
5418                                                 }
5419                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5420                                         }
5421                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5422                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5423                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5424                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5425                                                         }
5426                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5427                                                 }
5428                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5429                                         }
5430                                         if (paddrp->spp_flags & SPP_DSCP) {
5431                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5432                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5433                                                         net->dscp |= 0x01;
5434                                                 }
5435                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5436                                                 stcb->asoc.default_dscp |= 0x01;
5437                                         }
5438 #ifdef INET6
5439                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5440                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5441                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5442                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5443                                                                 net->flowlabel |= 0x80000000;
5444                                                         }
5445                                                 }
5446                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5447                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5448                                         }
5449 #endif
5450                                 }
5451                                 SCTP_TCB_UNLOCK(stcb);
5452                         } else {
5453                                 /************************NO TCB, SET TO default stuff ******************/
5454                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5455                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5456                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5457                                         SCTP_INP_WLOCK(inp);
5458                                         /*
5459                                          * For the TOS/FLOWLABEL stuff you
5460                                          * set it with the options on the
5461                                          * socket
5462                                          */
5463                                         if (paddrp->spp_pathmaxrxt != 0) {
5464                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5465                                         }
5466                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5467                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5468                                         else if (paddrp->spp_hbinterval != 0) {
5469                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5470                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5471                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5472                                         }
5473                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5474                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5475                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5476                                                 } else if (paddrp->spp_hbinterval) {
5477                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5478                                                 }
5479                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5480                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5481                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5482                                         }
5483                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5484                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5485                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5486                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5487                                         }
5488                                         if (paddrp->spp_flags & SPP_DSCP) {
5489                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5490                                                 inp->sctp_ep.default_dscp |= 0x01;
5491                                         }
5492 #ifdef INET6
5493                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5494                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5495                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5496                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5497                                                 }
5498                                         }
5499 #endif
5500                                         SCTP_INP_WUNLOCK(inp);
5501                                 } else {
5502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5503                                         error = EINVAL;
5504                                 }
5505                         }
5506                         break;
5507                 }
5508         case SCTP_RTOINFO:
5509                 {
5510                         struct sctp_rtoinfo *srto;
5511                         uint32_t new_init, new_min, new_max;
5512
5513                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5514                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5515
5516                         if (stcb) {
5517                                 if (srto->srto_initial)
5518                                         new_init = srto->srto_initial;
5519                                 else
5520                                         new_init = stcb->asoc.initial_rto;
5521                                 if (srto->srto_max)
5522                                         new_max = srto->srto_max;
5523                                 else
5524                                         new_max = stcb->asoc.maxrto;
5525                                 if (srto->srto_min)
5526                                         new_min = srto->srto_min;
5527                                 else
5528                                         new_min = stcb->asoc.minrto;
5529                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5530                                         stcb->asoc.initial_rto = new_init;
5531                                         stcb->asoc.maxrto = new_max;
5532                                         stcb->asoc.minrto = new_min;
5533                                 } else {
5534                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5535                                         error = EINVAL;
5536                                 }
5537                                 SCTP_TCB_UNLOCK(stcb);
5538                         } else {
5539                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5540                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5541                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5542                                         SCTP_INP_WLOCK(inp);
5543                                         if (srto->srto_initial)
5544                                                 new_init = srto->srto_initial;
5545                                         else
5546                                                 new_init = inp->sctp_ep.initial_rto;
5547                                         if (srto->srto_max)
5548                                                 new_max = srto->srto_max;
5549                                         else
5550                                                 new_max = inp->sctp_ep.sctp_maxrto;
5551                                         if (srto->srto_min)
5552                                                 new_min = srto->srto_min;
5553                                         else
5554                                                 new_min = inp->sctp_ep.sctp_minrto;
5555                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5556                                                 inp->sctp_ep.initial_rto = new_init;
5557                                                 inp->sctp_ep.sctp_maxrto = new_max;
5558                                                 inp->sctp_ep.sctp_minrto = new_min;
5559                                         } else {
5560                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5561                                                 error = EINVAL;
5562                                         }
5563                                         SCTP_INP_WUNLOCK(inp);
5564                                 } else {
5565                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5566                                         error = EINVAL;
5567                                 }
5568                         }
5569                         break;
5570                 }
5571         case SCTP_ASSOCINFO:
5572                 {
5573                         struct sctp_assocparams *sasoc;
5574
5575                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5576                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5577                         if (sasoc->sasoc_cookie_life) {
5578                                 /* boundary check the cookie life */
5579                                 if (sasoc->sasoc_cookie_life < 1000)
5580                                         sasoc->sasoc_cookie_life = 1000;
5581                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5582                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5583                                 }
5584                         }
5585                         if (stcb) {
5586                                 if (sasoc->sasoc_asocmaxrxt)
5587                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5588                                 if (sasoc->sasoc_cookie_life) {
5589                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5590                                 }
5591                                 SCTP_TCB_UNLOCK(stcb);
5592                         } else {
5593                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5594                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5595                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5596                                         SCTP_INP_WLOCK(inp);
5597                                         if (sasoc->sasoc_asocmaxrxt)
5598                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5599                                         if (sasoc->sasoc_cookie_life) {
5600                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5601                                         }
5602                                         SCTP_INP_WUNLOCK(inp);
5603                                 } else {
5604                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5605                                         error = EINVAL;
5606                                 }
5607                         }
5608                         break;
5609                 }
5610         case SCTP_INITMSG:
5611                 {
5612                         struct sctp_initmsg *sinit;
5613
5614                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5615                         SCTP_INP_WLOCK(inp);
5616                         if (sinit->sinit_num_ostreams)
5617                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5618
5619                         if (sinit->sinit_max_instreams)
5620                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5621
5622                         if (sinit->sinit_max_attempts)
5623                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5624
5625                         if (sinit->sinit_max_init_timeo)
5626                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5627                         SCTP_INP_WUNLOCK(inp);
5628                         break;
5629                 }
5630         case SCTP_PRIMARY_ADDR:
5631                 {
5632                         struct sctp_setprim *spa;
5633                         struct sctp_nets *net;
5634                         struct sockaddr *addr;
5635
5636 #if defined(INET) && defined(INET6)
5637                         struct sockaddr_in sin_store;
5638
5639 #endif
5640
5641                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5642                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5643
5644 #if defined(INET) && defined(INET6)
5645                         if (spa->ssp_addr.ss_family == AF_INET6) {
5646                                 struct sockaddr_in6 *sin6;
5647
5648                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5649                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5650                                         in6_sin6_2_sin(&sin_store, sin6);
5651                                         addr = (struct sockaddr *)&sin_store;
5652                                 } else {
5653                                         addr = (struct sockaddr *)&spa->ssp_addr;
5654                                 }
5655                         } else {
5656                                 addr = (struct sockaddr *)&spa->ssp_addr;
5657                         }
5658 #else
5659                         addr = (struct sockaddr *)&spa->ssp_addr;
5660 #endif
5661                         if (stcb != NULL) {
5662                                 net = sctp_findnet(stcb, addr);
5663                         } else {
5664                                 /*
5665                                  * We increment here since
5666                                  * sctp_findassociation_ep_addr() wil do a
5667                                  * decrement if it finds the stcb as long as
5668                                  * the locked tcb (last argument) is NOT a
5669                                  * TCB.. aka NULL.
5670                                  */
5671                                 net = NULL;
5672                                 SCTP_INP_INCR_REF(inp);
5673                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5674                                     &net, NULL, NULL);
5675                                 if (stcb == NULL) {
5676                                         SCTP_INP_DECR_REF(inp);
5677                                 }
5678                         }
5679
5680                         if ((stcb != NULL) && (net != NULL)) {
5681                                 if (net != stcb->asoc.primary_destination) {
5682                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5683                                                 /* Ok we need to set it */
5684                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5685                                                         if ((stcb->asoc.alternate) &&
5686                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5687                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5688                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5689                                                                 stcb->asoc.alternate = NULL;
5690                                                         }
5691                                                 } else {
5692                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5693                                                         error = EINVAL;
5694                                                 }
5695                                         } else {
5696                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5697                                                 error = EINVAL;
5698                                         }
5699                                 }
5700                         } else {
5701                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5702                                 error = EINVAL;
5703                         }
5704                         if (stcb != NULL) {
5705                                 SCTP_TCB_UNLOCK(stcb);
5706                         }
5707                         break;
5708                 }
5709         case SCTP_SET_DYNAMIC_PRIMARY:
5710                 {
5711                         union sctp_sockstore *ss;
5712
5713                         error = priv_check(curthread,
5714                             PRIV_NETINET_RESERVEDPORT);
5715                         if (error)
5716                                 break;
5717
5718                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5719                         /* SUPER USER CHECK? */
5720                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5721                         break;
5722                 }
5723         case SCTP_SET_PEER_PRIMARY_ADDR:
5724                 {
5725                         struct sctp_setpeerprim *sspp;
5726                         struct sockaddr *addr;
5727
5728 #if defined(INET) && defined(INET6)
5729                         struct sockaddr_in sin_store;
5730
5731 #endif
5732
5733                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5734                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5735                         if (stcb != NULL) {
5736                                 struct sctp_ifa *ifa;
5737
5738 #if defined(INET) && defined(INET6)
5739                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5740                                         struct sockaddr_in6 *sin6;
5741
5742                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5743                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5744                                                 in6_sin6_2_sin(&sin_store, sin6);
5745                                                 addr = (struct sockaddr *)&sin_store;
5746                                         } else {
5747                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5748                                         }
5749                                 } else {
5750                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5751                                 }
5752 #else
5753                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5754 #endif
5755                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5756                                 if (ifa == NULL) {
5757                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5758                                         error = EINVAL;
5759                                         goto out_of_it;
5760                                 }
5761                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5762                                         /*
5763                                          * Must validate the ifa found is in
5764                                          * our ep
5765                                          */
5766                                         struct sctp_laddr *laddr;
5767                                         int found = 0;
5768
5769                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5770                                                 if (laddr->ifa == NULL) {
5771                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5772                                                             __FUNCTION__);
5773                                                         continue;
5774                                                 }
5775                                                 if (laddr->ifa == ifa) {
5776                                                         found = 1;
5777                                                         break;
5778                                                 }
5779                                         }
5780                                         if (!found) {
5781                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5782                                                 error = EINVAL;
5783                                                 goto out_of_it;
5784                                         }
5785                                 } else {
5786                                         switch (addr->sa_family) {
5787 #ifdef INET
5788                                         case AF_INET:
5789                                                 {
5790                                                         struct sockaddr_in *sin;
5791
5792                                                         sin = (struct sockaddr_in *)addr;
5793                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5794                                                             &sin->sin_addr) != 0) {
5795                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5796                                                                 error = EINVAL;
5797                                                                 goto out_of_it;
5798                                                         }
5799                                                         break;
5800                                                 }
5801 #endif
5802 #ifdef INET6
5803                                         case AF_INET6:
5804                                                 {
5805                                                         struct sockaddr_in6 *sin6;
5806
5807                                                         sin6 = (struct sockaddr_in6 *)addr;
5808                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5809                                                             &sin6->sin6_addr) != 0) {
5810                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5811                                                                 error = EINVAL;
5812                                                                 goto out_of_it;
5813                                                         }
5814                                                         break;
5815                                                 }
5816 #endif
5817                                         default:
5818                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5819                                                 error = EINVAL;
5820                                                 goto out_of_it;
5821                                         }
5822                                 }
5823                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5824                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5825                                         error = EINVAL;
5826                                 }
5827                 out_of_it:
5828                                 SCTP_TCB_UNLOCK(stcb);
5829                         } else {
5830                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5831                                 error = EINVAL;
5832                         }
5833                         break;
5834                 }
5835         case SCTP_BINDX_ADD_ADDR:
5836                 {
5837                         struct sctp_getaddresses *addrs;
5838                         struct thread *td;
5839
5840                         td = (struct thread *)p;
5841                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5842                             optsize);
5843 #ifdef INET
5844                         if (addrs->addr->sa_family == AF_INET) {
5845                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5846                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5847                                         error = EINVAL;
5848                                         break;
5849                                 }
5850                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5851                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5852                                         break;
5853                                 }
5854                         } else
5855 #endif
5856 #ifdef INET6
5857                         if (addrs->addr->sa_family == AF_INET6) {
5858                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5859                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5860                                         error = EINVAL;
5861                                         break;
5862                                 }
5863                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5864                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5865                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5866                                         break;
5867                                 }
5868                         } else
5869 #endif
5870                         {
5871                                 error = EAFNOSUPPORT;
5872                                 break;
5873                         }
5874                         sctp_bindx_add_address(so, inp, addrs->addr,
5875                             addrs->sget_assoc_id, vrf_id,
5876                             &error, p);
5877                         break;
5878                 }
5879         case SCTP_BINDX_REM_ADDR:
5880                 {
5881                         struct sctp_getaddresses *addrs;
5882                         struct thread *td;
5883
5884                         td = (struct thread *)p;
5885
5886                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5887 #ifdef INET
5888                         if (addrs->addr->sa_family == AF_INET) {
5889                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5890                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5891                                         error = EINVAL;
5892                                         break;
5893                                 }
5894                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5895                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5896                                         break;
5897                                 }
5898                         } else
5899 #endif
5900 #ifdef INET6
5901                         if (addrs->addr->sa_family == AF_INET6) {
5902                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5903                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5904                                         error = EINVAL;
5905                                         break;
5906                                 }
5907                                 if (td != NULL &&
5908                                     (error = prison_local_ip6(td->td_ucred,
5909                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5910                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5911                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5912                                         break;
5913                                 }
5914                         } else
5915 #endif
5916                         {
5917                                 error = EAFNOSUPPORT;
5918                                 break;
5919                         }
5920                         sctp_bindx_delete_address(inp, addrs->addr,
5921                             addrs->sget_assoc_id, vrf_id,
5922                             &error);
5923                         break;
5924                 }
5925         case SCTP_EVENT:
5926                 {
5927                         struct sctp_event *event;
5928                         uint32_t event_type;
5929
5930                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5931                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5932                         switch (event->se_type) {
5933                         case SCTP_ASSOC_CHANGE:
5934                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5935                                 break;
5936                         case SCTP_PEER_ADDR_CHANGE:
5937                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5938                                 break;
5939                         case SCTP_REMOTE_ERROR:
5940                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5941                                 break;
5942                         case SCTP_SEND_FAILED:
5943                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5944                                 break;
5945                         case SCTP_SHUTDOWN_EVENT:
5946                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5947                                 break;
5948                         case SCTP_ADAPTATION_INDICATION:
5949                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5950                                 break;
5951                         case SCTP_PARTIAL_DELIVERY_EVENT:
5952                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5953                                 break;
5954                         case SCTP_AUTHENTICATION_EVENT:
5955                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5956                                 break;
5957                         case SCTP_STREAM_RESET_EVENT:
5958                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5959                                 break;
5960                         case SCTP_SENDER_DRY_EVENT:
5961                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5962                                 break;
5963                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5964                                 event_type = 0;
5965                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5966                                 error = ENOTSUP;
5967                                 break;
5968                         case SCTP_ASSOC_RESET_EVENT:
5969                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5970                                 break;
5971                         case SCTP_STREAM_CHANGE_EVENT:
5972                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5973                                 break;
5974                         case SCTP_SEND_FAILED_EVENT:
5975                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5976                                 break;
5977                         default:
5978                                 event_type = 0;
5979                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5980                                 error = EINVAL;
5981                                 break;
5982                         }
5983                         if (event_type > 0) {
5984                                 if (stcb) {
5985                                         if (event->se_on) {
5986                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5987                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5988                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5989                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5990                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5991                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5992                                                         }
5993                                                 }
5994                                         } else {
5995                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5996                                         }
5997                                         SCTP_TCB_UNLOCK(stcb);
5998                                 } else {
5999                                         /*
6000                                          * We don't want to send up a storm
6001                                          * of events, so return an error for
6002                                          * sender dry events
6003                                          */
6004                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6005                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6006                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6007                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6008                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6009                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6010                                                 error = ENOTSUP;
6011                                                 break;
6012                                         }
6013                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6014                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6015                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6016                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6017                                                 SCTP_INP_WLOCK(inp);
6018                                                 if (event->se_on) {
6019                                                         sctp_feature_on(inp, event_type);
6020                                                 } else {
6021                                                         sctp_feature_off(inp, event_type);
6022                                                 }
6023                                                 SCTP_INP_WUNLOCK(inp);
6024                                         }
6025                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6026                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6027                                                 SCTP_INP_RLOCK(inp);
6028                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6029                                                         SCTP_TCB_LOCK(stcb);
6030                                                         if (event->se_on) {
6031                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6032                                                         } else {
6033                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6034                                                         }
6035                                                         SCTP_TCB_UNLOCK(stcb);
6036                                                 }
6037                                                 SCTP_INP_RUNLOCK(inp);
6038                                         }
6039                                 }
6040                         }
6041                         break;
6042                 }
6043         case SCTP_RECVRCVINFO:
6044                 {
6045                         int *onoff;
6046
6047                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6048                         SCTP_INP_WLOCK(inp);
6049                         if (*onoff != 0) {
6050                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6051                         } else {
6052                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6053                         }
6054                         SCTP_INP_WUNLOCK(inp);
6055                         break;
6056                 }
6057         case SCTP_RECVNXTINFO:
6058                 {
6059                         int *onoff;
6060
6061                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6062                         SCTP_INP_WLOCK(inp);
6063                         if (*onoff != 0) {
6064                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6065                         } else {
6066                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6067                         }
6068                         SCTP_INP_WUNLOCK(inp);
6069                         break;
6070                 }
6071         case SCTP_DEFAULT_SNDINFO:
6072                 {
6073                         struct sctp_sndinfo *info;
6074                         uint16_t policy;
6075
6076                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6077                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6078
6079                         if (stcb) {
6080                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6081                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6082                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6083                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6084                                         stcb->asoc.def_send.sinfo_flags |= policy;
6085                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6086                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6087                                 } else {
6088                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6089                                         error = EINVAL;
6090                                 }
6091                                 SCTP_TCB_UNLOCK(stcb);
6092                         } else {
6093                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6094                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6095                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6096                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6097                                         SCTP_INP_WLOCK(inp);
6098                                         inp->def_send.sinfo_stream = info->snd_sid;
6099                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6100                                         inp->def_send.sinfo_flags = info->snd_flags;
6101                                         inp->def_send.sinfo_flags |= policy;
6102                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6103                                         inp->def_send.sinfo_context = info->snd_context;
6104                                         SCTP_INP_WUNLOCK(inp);
6105                                 }
6106                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6107                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6108                                         SCTP_INP_RLOCK(inp);
6109                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6110                                                 SCTP_TCB_LOCK(stcb);
6111                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6112                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6113                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6114                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6115                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6116                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6117                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6118                                                 }
6119                                                 SCTP_TCB_UNLOCK(stcb);
6120                                         }
6121                                         SCTP_INP_RUNLOCK(inp);
6122                                 }
6123                         }
6124                         break;
6125                 }
6126         case SCTP_DEFAULT_PRINFO:
6127                 {
6128                         struct sctp_default_prinfo *info;
6129
6130                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6131                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6132
6133                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6134                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6135                                 error = EINVAL;
6136                                 break;
6137                         }
6138                         if (stcb) {
6139                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6140                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6141                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6142                                 SCTP_TCB_UNLOCK(stcb);
6143                         } else {
6144                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6145                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6146                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6147                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6148                                         SCTP_INP_WLOCK(inp);
6149                                         inp->def_send.sinfo_flags &= 0xfff0;
6150                                         inp->def_send.sinfo_flags |= info->pr_policy;
6151                                         inp->def_send.sinfo_timetolive = info->pr_value;
6152                                         SCTP_INP_WUNLOCK(inp);
6153                                 }
6154                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6155                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6156                                         SCTP_INP_RLOCK(inp);
6157                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6158                                                 SCTP_TCB_LOCK(stcb);
6159                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6160                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6161                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6162                                                 SCTP_TCB_UNLOCK(stcb);
6163                                         }
6164                                         SCTP_INP_RUNLOCK(inp);
6165                                 }
6166                         }
6167                         break;
6168                 }
6169         case SCTP_PEER_ADDR_THLDS:
6170                 /* Applies to the specific association */
6171                 {
6172                         struct sctp_paddrthlds *thlds;
6173                         struct sctp_nets *net;
6174                         struct sockaddr *addr;
6175
6176 #if defined(INET) && defined(INET6)
6177                         struct sockaddr_in sin_store;
6178
6179 #endif
6180
6181                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6182                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6183
6184 #if defined(INET) && defined(INET6)
6185                         if (thlds->spt_address.ss_family == AF_INET6) {
6186                                 struct sockaddr_in6 *sin6;
6187
6188                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6189                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6190                                         in6_sin6_2_sin(&sin_store, sin6);
6191                                         addr = (struct sockaddr *)&sin_store;
6192                                 } else {
6193                                         addr = (struct sockaddr *)&thlds->spt_address;
6194                                 }
6195                         } else {
6196                                 addr = (struct sockaddr *)&thlds->spt_address;
6197                         }
6198 #else
6199                         addr = (struct sockaddr *)&thlds->spt_address;
6200 #endif
6201                         if (stcb != NULL) {
6202                                 net = sctp_findnet(stcb, addr);
6203                         } else {
6204                                 /*
6205                                  * We increment here since
6206                                  * sctp_findassociation_ep_addr() wil do a
6207                                  * decrement if it finds the stcb as long as
6208                                  * the locked tcb (last argument) is NOT a
6209                                  * TCB.. aka NULL.
6210                                  */
6211                                 net = NULL;
6212                                 SCTP_INP_INCR_REF(inp);
6213                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6214                                     &net, NULL, NULL);
6215                                 if (stcb == NULL) {
6216                                         SCTP_INP_DECR_REF(inp);
6217                                 }
6218                         }
6219                         if ((stcb != NULL) && (net == NULL)) {
6220 #ifdef INET
6221                                 if (addr->sa_family == AF_INET) {
6222
6223                                         struct sockaddr_in *sin;
6224
6225                                         sin = (struct sockaddr_in *)addr;
6226                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6227                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6228                                                 SCTP_TCB_UNLOCK(stcb);
6229                                                 error = EINVAL;
6230                                                 break;
6231                                         }
6232                                 } else
6233 #endif
6234 #ifdef INET6
6235                                 if (addr->sa_family == AF_INET6) {
6236                                         struct sockaddr_in6 *sin6;
6237
6238                                         sin6 = (struct sockaddr_in6 *)addr;
6239                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6240                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6241                                                 SCTP_TCB_UNLOCK(stcb);
6242                                                 error = EINVAL;
6243                                                 break;
6244                                         }
6245                                 } else
6246 #endif
6247                                 {
6248                                         error = EAFNOSUPPORT;
6249                                         SCTP_TCB_UNLOCK(stcb);
6250                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6251                                         break;
6252                                 }
6253                         }
6254                         if (stcb != NULL) {
6255                                 if (net != NULL) {
6256                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6257                                         net->pf_threshold = thlds->spt_pathpfthld;
6258                                         if (net->dest_state & SCTP_ADDR_PF) {
6259                                                 if ((net->error_count > net->failure_threshold) ||
6260                                                     (net->error_count <= net->pf_threshold)) {
6261                                                         net->dest_state &= ~SCTP_ADDR_PF;
6262                                                 }
6263                                         } else {
6264                                                 if ((net->error_count > net->pf_threshold) &&
6265                                                     (net->error_count <= net->failure_threshold)) {
6266                                                         net->dest_state |= SCTP_ADDR_PF;
6267                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6268                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6269                                                             stcb->sctp_ep, stcb, net,
6270                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6271                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6272                                                 }
6273                                         }
6274                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6275                                                 if (net->error_count > net->failure_threshold) {
6276                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6277                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6278                                                 }
6279                                         } else {
6280                                                 if (net->error_count <= net->failure_threshold) {
6281                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6282                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6283                                                 }
6284                                         }
6285                                 } else {
6286                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6287                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6288                                                 net->pf_threshold = thlds->spt_pathpfthld;
6289                                                 if (net->dest_state & SCTP_ADDR_PF) {
6290                                                         if ((net->error_count > net->failure_threshold) ||
6291                                                             (net->error_count <= net->pf_threshold)) {
6292                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6293                                                         }
6294                                                 } else {
6295                                                         if ((net->error_count > net->pf_threshold) &&
6296                                                             (net->error_count <= net->failure_threshold)) {
6297                                                                 net->dest_state |= SCTP_ADDR_PF;
6298                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6299                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6300                                                                     stcb->sctp_ep, stcb, net,
6301                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6302                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6303                                                         }
6304                                                 }
6305                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6306                                                         if (net->error_count > net->failure_threshold) {
6307                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6308                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6309                                                         }
6310                                                 } else {
6311                                                         if (net->error_count <= net->failure_threshold) {
6312                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6313                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6314                                                         }
6315                                                 }
6316                                         }
6317                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6318                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6319                                 }
6320                                 SCTP_TCB_UNLOCK(stcb);
6321                         } else {
6322                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6323                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6324                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6325                                         SCTP_INP_WLOCK(inp);
6326                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6327                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6328                                         SCTP_INP_WUNLOCK(inp);
6329                                 } else {
6330                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6331                                         error = EINVAL;
6332                                 }
6333                         }
6334                         break;
6335                 }
6336         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6337                 {
6338                         struct sctp_udpencaps *encaps;
6339                         struct sctp_nets *net;
6340                         struct sockaddr *addr;
6341
6342 #if defined(INET) && defined(INET6)
6343                         struct sockaddr_in sin_store;
6344
6345 #endif
6346
6347                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6348                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6349
6350 #if defined(INET) && defined(INET6)
6351                         if (encaps->sue_address.ss_family == AF_INET6) {
6352                                 struct sockaddr_in6 *sin6;
6353
6354                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6355                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6356                                         in6_sin6_2_sin(&sin_store, sin6);
6357                                         addr = (struct sockaddr *)&sin_store;
6358                                 } else {
6359                                         addr = (struct sockaddr *)&encaps->sue_address;
6360                                 }
6361                         } else {
6362                                 addr = (struct sockaddr *)&encaps->sue_address;
6363                         }
6364 #else
6365                         addr = (struct sockaddr *)&encaps->sue_address;
6366 #endif
6367                         if (stcb != NULL) {
6368                                 net = sctp_findnet(stcb, addr);
6369                         } else {
6370                                 /*
6371                                  * We increment here since
6372                                  * sctp_findassociation_ep_addr() wil do a
6373                                  * decrement if it finds the stcb as long as
6374                                  * the locked tcb (last argument) is NOT a
6375                                  * TCB.. aka NULL.
6376                                  */
6377                                 net = NULL;
6378                                 SCTP_INP_INCR_REF(inp);
6379                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6380                                 if (stcb == NULL) {
6381                                         SCTP_INP_DECR_REF(inp);
6382                                 }
6383                         }
6384                         if ((stcb != NULL) && (net == NULL)) {
6385 #ifdef INET
6386                                 if (addr->sa_family == AF_INET) {
6387
6388                                         struct sockaddr_in *sin;
6389
6390                                         sin = (struct sockaddr_in *)addr;
6391                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6392                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6393                                                 SCTP_TCB_UNLOCK(stcb);
6394                                                 error = EINVAL;
6395                                                 break;
6396                                         }
6397                                 } else
6398 #endif
6399 #ifdef INET6
6400                                 if (addr->sa_family == AF_INET6) {
6401                                         struct sockaddr_in6 *sin6;
6402
6403                                         sin6 = (struct sockaddr_in6 *)addr;
6404                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6405                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6406                                                 SCTP_TCB_UNLOCK(stcb);
6407                                                 error = EINVAL;
6408                                                 break;
6409                                         }
6410                                 } else
6411 #endif
6412                                 {
6413                                         error = EAFNOSUPPORT;
6414                                         SCTP_TCB_UNLOCK(stcb);
6415                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6416                                         break;
6417                                 }
6418                         }
6419                         if (stcb != NULL) {
6420                                 if (net != NULL) {
6421                                         net->port = encaps->sue_port;
6422                                 } else {
6423                                         stcb->asoc.port = encaps->sue_port;
6424                                 }
6425                                 SCTP_TCB_UNLOCK(stcb);
6426                         } else {
6427                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6428                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6429                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6430                                         SCTP_INP_WLOCK(inp);
6431                                         inp->sctp_ep.port = encaps->sue_port;
6432                                         SCTP_INP_WUNLOCK(inp);
6433                                 } else {
6434                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6435                                         error = EINVAL;
6436                                 }
6437                         }
6438                         break;
6439                 }
6440         case SCTP_ECN_SUPPORTED:
6441                 {
6442                         struct sctp_assoc_value *av;
6443
6444                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6445                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6446
6447                         if (stcb) {
6448                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6449                                 error = EINVAL;
6450                                 SCTP_TCB_UNLOCK(stcb);
6451                         } else {
6452                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6453                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6454                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6455                                         SCTP_INP_WLOCK(inp);
6456                                         if (av->assoc_value == 0) {
6457                                                 inp->ecn_supported = 0;
6458                                         } else {
6459                                                 inp->ecn_supported = 1;
6460                                         }
6461                                         SCTP_INP_WUNLOCK(inp);
6462                                 } else {
6463                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6464                                         error = EINVAL;
6465                                 }
6466                         }
6467                         break;
6468                 }
6469         case SCTP_PR_SUPPORTED:
6470                 {
6471                         struct sctp_assoc_value *av;
6472
6473                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6474                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6475
6476                         if (stcb) {
6477                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6478                                 error = EINVAL;
6479                                 SCTP_TCB_UNLOCK(stcb);
6480                         } else {
6481                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6482                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6483                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6484                                         SCTP_INP_WLOCK(inp);
6485                                         if (av->assoc_value == 0) {
6486                                                 inp->prsctp_supported = 0;
6487                                         } else {
6488                                                 inp->prsctp_supported = 1;
6489                                         }
6490                                         SCTP_INP_WUNLOCK(inp);
6491                                 } else {
6492                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6493                                         error = EINVAL;
6494                                 }
6495                         }
6496                         break;
6497                 }
6498         case SCTP_AUTH_SUPPORTED:
6499                 {
6500                         struct sctp_assoc_value *av;
6501
6502                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6503                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6504
6505                         if (stcb) {
6506                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6507                                 error = EINVAL;
6508                                 SCTP_TCB_UNLOCK(stcb);
6509                         } else {
6510                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6511                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6512                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6513                                         if ((av->assoc_value == 0) &&
6514                                             (inp->asconf_supported == 1)) {
6515                                                 /*
6516                                                  * AUTH is required for
6517                                                  * ASCONF
6518                                                  */
6519                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6520                                                 error = EINVAL;
6521                                         } else {
6522                                                 SCTP_INP_WLOCK(inp);
6523                                                 if (av->assoc_value == 0) {
6524                                                         inp->auth_supported = 0;
6525                                                 } else {
6526                                                         inp->auth_supported = 1;
6527                                                 }
6528                                                 SCTP_INP_WUNLOCK(inp);
6529                                         }
6530                                 } else {
6531                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6532                                         error = EINVAL;
6533                                 }
6534                         }
6535                         break;
6536                 }
6537         case SCTP_ASCONF_SUPPORTED:
6538                 {
6539                         struct sctp_assoc_value *av;
6540
6541                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6542                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6543
6544                         if (stcb) {
6545                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6546                                 error = EINVAL;
6547                                 SCTP_TCB_UNLOCK(stcb);
6548                         } else {
6549                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6550                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6551                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6552                                         if ((av->assoc_value != 0) &&
6553                                             (inp->auth_supported == 0)) {
6554                                                 /*
6555                                                  * AUTH is required for
6556                                                  * ASCONF
6557                                                  */
6558                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6559                                                 error = EINVAL;
6560                                         } else {
6561                                                 SCTP_INP_WLOCK(inp);
6562                                                 if (av->assoc_value == 0) {
6563                                                         inp->asconf_supported = 0;
6564                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6565                                                             inp->sctp_ep.local_auth_chunks);
6566                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6567                                                             inp->sctp_ep.local_auth_chunks);
6568                                                 } else {
6569                                                         inp->asconf_supported = 1;
6570                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6571                                                             inp->sctp_ep.local_auth_chunks);
6572                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6573                                                             inp->sctp_ep.local_auth_chunks);
6574                                                 }
6575                                                 SCTP_INP_WUNLOCK(inp);
6576                                         }
6577                                 } else {
6578                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6579                                         error = EINVAL;
6580                                 }
6581                         }
6582                         break;
6583                 }
6584         case SCTP_RECONFIG_SUPPORTED:
6585                 {
6586                         struct sctp_assoc_value *av;
6587
6588                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6589                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6590
6591                         if (stcb) {
6592                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6593                                 error = EINVAL;
6594                                 SCTP_TCB_UNLOCK(stcb);
6595                         } else {
6596                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6597                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6598                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6599                                         SCTP_INP_WLOCK(inp);
6600                                         if (av->assoc_value == 0) {
6601                                                 inp->reconfig_supported = 0;
6602                                         } else {
6603                                                 inp->reconfig_supported = 1;
6604                                         }
6605                                         SCTP_INP_WUNLOCK(inp);
6606                                 } else {
6607                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6608                                         error = EINVAL;
6609                                 }
6610                         }
6611                         break;
6612                 }
6613         case SCTP_NRSACK_SUPPORTED:
6614                 {
6615                         struct sctp_assoc_value *av;
6616
6617                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6618                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6619
6620                         if (stcb) {
6621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6622                                 error = EINVAL;
6623                                 SCTP_TCB_UNLOCK(stcb);
6624                         } else {
6625                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6626                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6627                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6628                                         SCTP_INP_WLOCK(inp);
6629                                         if (av->assoc_value == 0) {
6630                                                 inp->nrsack_supported = 0;
6631                                         } else {
6632                                                 inp->nrsack_supported = 1;
6633                                         }
6634                                         SCTP_INP_WUNLOCK(inp);
6635                                 } else {
6636                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6637                                         error = EINVAL;
6638                                 }
6639                         }
6640                         break;
6641                 }
6642         case SCTP_PKTDROP_SUPPORTED:
6643                 {
6644                         struct sctp_assoc_value *av;
6645
6646                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6647                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6648
6649                         if (stcb) {
6650                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6651                                 error = EINVAL;
6652                                 SCTP_TCB_UNLOCK(stcb);
6653                         } else {
6654                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6655                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6656                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6657                                         SCTP_INP_WLOCK(inp);
6658                                         if (av->assoc_value == 0) {
6659                                                 inp->pktdrop_supported = 0;
6660                                         } else {
6661                                                 inp->pktdrop_supported = 1;
6662                                         }
6663                                         SCTP_INP_WUNLOCK(inp);
6664                                 } else {
6665                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6666                                         error = EINVAL;
6667                                 }
6668                         }
6669                         break;
6670                 }
6671         case SCTP_MAX_CWND:
6672                 {
6673                         struct sctp_assoc_value *av;
6674                         struct sctp_nets *net;
6675
6676                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6677                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6678
6679                         if (stcb) {
6680                                 stcb->asoc.max_cwnd = av->assoc_value;
6681                                 if (stcb->asoc.max_cwnd > 0) {
6682                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6683                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6684                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6685                                                         net->cwnd = stcb->asoc.max_cwnd;
6686                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6687                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6688                                                         }
6689                                                 }
6690                                         }
6691                                 }
6692                                 SCTP_TCB_UNLOCK(stcb);
6693                         } else {
6694                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6695                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6696                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6697                                         SCTP_INP_WLOCK(inp);
6698                                         inp->max_cwnd = av->assoc_value;
6699                                         SCTP_INP_WUNLOCK(inp);
6700                                 } else {
6701                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6702                                         error = EINVAL;
6703                                 }
6704                         }
6705                         break;
6706                 }
6707         default:
6708                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6709                 error = ENOPROTOOPT;
6710                 break;
6711         }                       /* end switch (opt) */
6712         return (error);
6713 }
6714
6715 int
6716 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6717 {
6718         void *optval = NULL;
6719         size_t optsize = 0;
6720         void *p;
6721         int error = 0;
6722         struct sctp_inpcb *inp;
6723
6724         if ((sopt->sopt_level == SOL_SOCKET) &&
6725             (sopt->sopt_name == SO_SETFIB)) {
6726                 inp = (struct sctp_inpcb *)so->so_pcb;
6727                 if (inp == NULL) {
6728                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6729                         return (EINVAL);
6730                 }
6731                 SCTP_INP_WLOCK(inp);
6732                 inp->fibnum = so->so_fibnum;
6733                 SCTP_INP_WUNLOCK(inp);
6734                 return (0);
6735         }
6736         if (sopt->sopt_level != IPPROTO_SCTP) {
6737                 /* wrong proto level... send back up to IP */
6738 #ifdef INET6
6739                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6740                         error = ip6_ctloutput(so, sopt);
6741 #endif                          /* INET6 */
6742 #if defined(INET) && defined(INET6)
6743                 else
6744 #endif
6745 #ifdef INET
6746                         error = ip_ctloutput(so, sopt);
6747 #endif
6748                 return (error);
6749         }
6750         optsize = sopt->sopt_valsize;
6751         if (optsize) {
6752                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6753                 if (optval == NULL) {
6754                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6755                         return (ENOBUFS);
6756                 }
6757                 error = sooptcopyin(sopt, optval, optsize, optsize);
6758                 if (error) {
6759                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6760                         goto out;
6761                 }
6762         }
6763         p = (void *)sopt->sopt_td;
6764         if (sopt->sopt_dir == SOPT_SET) {
6765                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6766         } else if (sopt->sopt_dir == SOPT_GET) {
6767                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6768         } else {
6769                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6770                 error = EINVAL;
6771         }
6772         if ((error == 0) && (optval != NULL)) {
6773                 error = sooptcopyout(sopt, optval, optsize);
6774                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6775         } else if (optval != NULL) {
6776                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6777         }
6778 out:
6779         return (error);
6780 }
6781
6782 #ifdef INET
6783 static int
6784 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6785 {
6786         int error = 0;
6787         int create_lock_on = 0;
6788         uint32_t vrf_id;
6789         struct sctp_inpcb *inp;
6790         struct sctp_tcb *stcb = NULL;
6791
6792         inp = (struct sctp_inpcb *)so->so_pcb;
6793         if (inp == NULL) {
6794                 /* I made the same as TCP since we are not setup? */
6795                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6796                 return (ECONNRESET);
6797         }
6798         if (addr == NULL) {
6799                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6800                 return EINVAL;
6801         }
6802         switch (addr->sa_family) {
6803 #ifdef INET6
6804         case AF_INET6:
6805                 {
6806                         struct sockaddr_in6 *sin6p;
6807
6808                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6810                                 return (EINVAL);
6811                         }
6812                         sin6p = (struct sockaddr_in6 *)addr;
6813                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6814                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6815                                 return (error);
6816                         }
6817                         break;
6818                 }
6819 #endif
6820 #ifdef INET
6821         case AF_INET:
6822                 {
6823                         struct sockaddr_in *sinp;
6824
6825                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6826                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6827                                 return (EINVAL);
6828                         }
6829                         sinp = (struct sockaddr_in *)addr;
6830                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6832                                 return (error);
6833                         }
6834                         break;
6835                 }
6836 #endif
6837         default:
6838                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6839                 return (EAFNOSUPPORT);
6840         }
6841         SCTP_INP_INCR_REF(inp);
6842         SCTP_ASOC_CREATE_LOCK(inp);
6843         create_lock_on = 1;
6844
6845
6846         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6847             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6848                 /* Should I really unlock ? */
6849                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6850                 error = EFAULT;
6851                 goto out_now;
6852         }
6853 #ifdef INET6
6854         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6855             (addr->sa_family == AF_INET6)) {
6856                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6857                 error = EINVAL;
6858                 goto out_now;
6859         }
6860 #endif
6861         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6862             SCTP_PCB_FLAGS_UNBOUND) {
6863                 /* Bind a ephemeral port */
6864                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6865                 if (error) {
6866                         goto out_now;
6867                 }
6868         }
6869         /* Now do we connect? */
6870         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6871             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6872                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6873                 error = EINVAL;
6874                 goto out_now;
6875         }
6876         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6877             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6878                 /* We are already connected AND the TCP model */
6879                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6880                 error = EADDRINUSE;
6881                 goto out_now;
6882         }
6883         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6884                 SCTP_INP_RLOCK(inp);
6885                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6886                 SCTP_INP_RUNLOCK(inp);
6887         } else {
6888                 /*
6889                  * We increment here since sctp_findassociation_ep_addr()
6890                  * will do a decrement if it finds the stcb as long as the
6891                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6892                  */
6893                 SCTP_INP_INCR_REF(inp);
6894                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6895                 if (stcb == NULL) {
6896                         SCTP_INP_DECR_REF(inp);
6897                 } else {
6898                         SCTP_TCB_UNLOCK(stcb);
6899                 }
6900         }
6901         if (stcb != NULL) {
6902                 /* Already have or am bring up an association */
6903                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6904                 error = EALREADY;
6905                 goto out_now;
6906         }
6907         vrf_id = inp->def_vrf_id;
6908         /* We are GOOD to go */
6909         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6910         if (stcb == NULL) {
6911                 /* Gak! no memory */
6912                 goto out_now;
6913         }
6914         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6915                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6916                 /* Set the connected flag so we can queue data */
6917                 soisconnecting(so);
6918         }
6919         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6920         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6921
6922         /* initialize authentication parameters for the assoc */
6923         sctp_initialize_auth_params(inp, stcb);
6924
6925         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6926         SCTP_TCB_UNLOCK(stcb);
6927 out_now:
6928         if (create_lock_on) {
6929                 SCTP_ASOC_CREATE_UNLOCK(inp);
6930         }
6931         SCTP_INP_DECR_REF(inp);
6932         return (error);
6933 }
6934
6935 #endif
6936
6937 int
6938 sctp_listen(struct socket *so, int backlog, struct thread *p)
6939 {
6940         /*
6941          * Note this module depends on the protocol processing being called
6942          * AFTER any socket level flags and backlog are applied to the
6943          * socket. The traditional way that the socket flags are applied is
6944          * AFTER protocol processing. We have made a change to the
6945          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6946          * place if the socket API for SCTP is to work properly.
6947          */
6948
6949         int error = 0;
6950         struct sctp_inpcb *inp;
6951
6952         inp = (struct sctp_inpcb *)so->so_pcb;
6953         if (inp == NULL) {
6954                 /* I made the same as TCP since we are not setup? */
6955                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6956                 return (ECONNRESET);
6957         }
6958         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6959                 /* See if we have a listener */
6960                 struct sctp_inpcb *tinp;
6961                 union sctp_sockstore store;
6962
6963                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6964                         /* not bound all */
6965                         struct sctp_laddr *laddr;
6966
6967                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6968                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6969                                 switch (store.sa.sa_family) {
6970 #ifdef INET
6971                                 case AF_INET:
6972                                         store.sin.sin_port = inp->sctp_lport;
6973                                         break;
6974 #endif
6975 #ifdef INET6
6976                                 case AF_INET6:
6977                                         store.sin6.sin6_port = inp->sctp_lport;
6978                                         break;
6979 #endif
6980                                 default:
6981                                         break;
6982                                 }
6983                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6984                                 if (tinp && (tinp != inp) &&
6985                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6986                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6987                                     (tinp->sctp_socket->so_qlimit)) {
6988                                         /*
6989                                          * we have a listener already and
6990                                          * its not this inp.
6991                                          */
6992                                         SCTP_INP_DECR_REF(tinp);
6993                                         return (EADDRINUSE);
6994                                 } else if (tinp) {
6995                                         SCTP_INP_DECR_REF(tinp);
6996                                 }
6997                         }
6998                 } else {
6999                         /* Setup a local addr bound all */
7000                         memset(&store, 0, sizeof(store));
7001 #ifdef INET6
7002                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7003                                 store.sa.sa_family = AF_INET6;
7004                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7005                         }
7006 #endif
7007 #ifdef INET
7008                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7009                                 store.sa.sa_family = AF_INET;
7010                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7011                         }
7012 #endif
7013                         switch (store.sa.sa_family) {
7014 #ifdef INET
7015                         case AF_INET:
7016                                 store.sin.sin_port = inp->sctp_lport;
7017                                 break;
7018 #endif
7019 #ifdef INET6
7020                         case AF_INET6:
7021                                 store.sin6.sin6_port = inp->sctp_lport;
7022                                 break;
7023 #endif
7024                         default:
7025                                 break;
7026                         }
7027                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7028                         if (tinp && (tinp != inp) &&
7029                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7030                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7031                             (tinp->sctp_socket->so_qlimit)) {
7032                                 /*
7033                                  * we have a listener already and its not
7034                                  * this inp.
7035                                  */
7036                                 SCTP_INP_DECR_REF(tinp);
7037                                 return (EADDRINUSE);
7038                         } else if (tinp) {
7039                                 SCTP_INP_DECR_REF(tinp);
7040                         }
7041                 }
7042         }
7043         SCTP_INP_RLOCK(inp);
7044 #ifdef SCTP_LOCK_LOGGING
7045         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7046                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7047         }
7048 #endif
7049         SOCK_LOCK(so);
7050         error = solisten_proto_check(so);
7051         SOCK_UNLOCK(so);
7052         if (error) {
7053                 SCTP_INP_RUNLOCK(inp);
7054                 return (error);
7055         }
7056         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7057             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7058                 /*
7059                  * The unlucky case - We are in the tcp pool with this guy.
7060                  * - Someone else is in the main inp slot. - We must move
7061                  * this guy (the listener) to the main slot - We must then
7062                  * move the guy that was listener to the TCP Pool.
7063                  */
7064                 if (sctp_swap_inpcb_for_listen(inp)) {
7065                         SCTP_INP_RUNLOCK(inp);
7066                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7067                         return (EADDRINUSE);
7068                 }
7069         }
7070         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7071             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7072                 /* We are already connected AND the TCP model */
7073                 SCTP_INP_RUNLOCK(inp);
7074                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7075                 return (EADDRINUSE);
7076         }
7077         SCTP_INP_RUNLOCK(inp);
7078         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7079                 /* We must do a bind. */
7080                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7081                         /* bind error, probably perm */
7082                         return (error);
7083                 }
7084         }
7085         SOCK_LOCK(so);
7086         /* It appears for 7.0 and on, we must always call this. */
7087         solisten_proto(so, backlog);
7088         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7089                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7090                 so->so_options &= ~SO_ACCEPTCONN;
7091         }
7092         if (backlog == 0) {
7093                 /* turning off listen */
7094                 so->so_options &= ~SO_ACCEPTCONN;
7095         }
7096         SOCK_UNLOCK(so);
7097         return (error);
7098 }
7099
7100 static int sctp_defered_wakeup_cnt = 0;
7101
7102 int
7103 sctp_accept(struct socket *so, struct sockaddr **addr)
7104 {
7105         struct sctp_tcb *stcb;
7106         struct sctp_inpcb *inp;
7107         union sctp_sockstore store;
7108
7109 #ifdef INET6
7110         int error;
7111
7112 #endif
7113         inp = (struct sctp_inpcb *)so->so_pcb;
7114
7115         if (inp == NULL) {
7116                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7117                 return (ECONNRESET);
7118         }
7119         SCTP_INP_RLOCK(inp);
7120         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7121                 SCTP_INP_RUNLOCK(inp);
7122                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7123                 return (EOPNOTSUPP);
7124         }
7125         if (so->so_state & SS_ISDISCONNECTED) {
7126                 SCTP_INP_RUNLOCK(inp);
7127                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7128                 return (ECONNABORTED);
7129         }
7130         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7131         if (stcb == NULL) {
7132                 SCTP_INP_RUNLOCK(inp);
7133                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7134                 return (ECONNRESET);
7135         }
7136         SCTP_TCB_LOCK(stcb);
7137         SCTP_INP_RUNLOCK(inp);
7138         store = stcb->asoc.primary_destination->ro._l_addr;
7139         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7140         SCTP_TCB_UNLOCK(stcb);
7141         switch (store.sa.sa_family) {
7142 #ifdef INET
7143         case AF_INET:
7144                 {
7145                         struct sockaddr_in *sin;
7146
7147                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7148                         if (sin == NULL)
7149                                 return (ENOMEM);
7150                         sin->sin_family = AF_INET;
7151                         sin->sin_len = sizeof(*sin);
7152                         sin->sin_port = store.sin.sin_port;
7153                         sin->sin_addr = store.sin.sin_addr;
7154                         *addr = (struct sockaddr *)sin;
7155                         break;
7156                 }
7157 #endif
7158 #ifdef INET6
7159         case AF_INET6:
7160                 {
7161                         struct sockaddr_in6 *sin6;
7162
7163                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7164                         if (sin6 == NULL)
7165                                 return (ENOMEM);
7166                         sin6->sin6_family = AF_INET6;
7167                         sin6->sin6_len = sizeof(*sin6);
7168                         sin6->sin6_port = store.sin6.sin6_port;
7169                         sin6->sin6_addr = store.sin6.sin6_addr;
7170                         if ((error = sa6_recoverscope(sin6)) != 0) {
7171                                 SCTP_FREE_SONAME(sin6);
7172                                 return (error);
7173                         }
7174                         *addr = (struct sockaddr *)sin6;
7175                         break;
7176                 }
7177 #endif
7178         default:
7179                 /* TSNH */
7180                 break;
7181         }
7182         /* Wake any delayed sleep action */
7183         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7184                 SCTP_INP_WLOCK(inp);
7185                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7186                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7187                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7188                         SCTP_INP_WUNLOCK(inp);
7189                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7190                         if (sowriteable(inp->sctp_socket)) {
7191                                 sowwakeup_locked(inp->sctp_socket);
7192                         } else {
7193                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7194                         }
7195                         SCTP_INP_WLOCK(inp);
7196                 }
7197                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7198                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7199                         SCTP_INP_WUNLOCK(inp);
7200                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7201                         if (soreadable(inp->sctp_socket)) {
7202                                 sctp_defered_wakeup_cnt++;
7203                                 sorwakeup_locked(inp->sctp_socket);
7204                         } else {
7205                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7206                         }
7207                         SCTP_INP_WLOCK(inp);
7208                 }
7209                 SCTP_INP_WUNLOCK(inp);
7210         }
7211         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7212                 SCTP_TCB_LOCK(stcb);
7213                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7214                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7215         }
7216         return (0);
7217 }
7218
7219 #ifdef INET
7220 int
7221 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7222 {
7223         struct sockaddr_in *sin;
7224         uint32_t vrf_id;
7225         struct sctp_inpcb *inp;
7226         struct sctp_ifa *sctp_ifa;
7227
7228         /*
7229          * Do the malloc first in case it blocks.
7230          */
7231         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7232         if (sin == NULL)
7233                 return (ENOMEM);
7234         sin->sin_family = AF_INET;
7235         sin->sin_len = sizeof(*sin);
7236         inp = (struct sctp_inpcb *)so->so_pcb;
7237         if (!inp) {
7238                 SCTP_FREE_SONAME(sin);
7239                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7240                 return (ECONNRESET);
7241         }
7242         SCTP_INP_RLOCK(inp);
7243         sin->sin_port = inp->sctp_lport;
7244         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7245                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7246                         struct sctp_tcb *stcb;
7247                         struct sockaddr_in *sin_a;
7248                         struct sctp_nets *net;
7249                         int fnd;
7250
7251                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7252                         if (stcb == NULL) {
7253                                 goto notConn;
7254                         }
7255                         fnd = 0;
7256                         sin_a = NULL;
7257                         SCTP_TCB_LOCK(stcb);
7258                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7259                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7260                                 if (sin_a == NULL)
7261                                         /* this will make coverity happy */
7262                                         continue;
7263
7264                                 if (sin_a->sin_family == AF_INET) {
7265                                         fnd = 1;
7266                                         break;
7267                                 }
7268                         }
7269                         if ((!fnd) || (sin_a == NULL)) {
7270                                 /* punt */
7271                                 SCTP_TCB_UNLOCK(stcb);
7272                                 goto notConn;
7273                         }
7274                         vrf_id = inp->def_vrf_id;
7275                         sctp_ifa = sctp_source_address_selection(inp,
7276                             stcb,
7277                             (sctp_route_t *) & net->ro,
7278                             net, 0, vrf_id);
7279                         if (sctp_ifa) {
7280                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7281                                 sctp_free_ifa(sctp_ifa);
7282                         }
7283                         SCTP_TCB_UNLOCK(stcb);
7284                 } else {
7285                         /* For the bound all case you get back 0 */
7286         notConn:
7287                         sin->sin_addr.s_addr = 0;
7288                 }
7289
7290         } else {
7291                 /* Take the first IPv4 address in the list */
7292                 struct sctp_laddr *laddr;
7293                 int fnd = 0;
7294
7295                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7296                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7297                                 struct sockaddr_in *sin_a;
7298
7299                                 sin_a = &laddr->ifa->address.sin;
7300                                 sin->sin_addr = sin_a->sin_addr;
7301                                 fnd = 1;
7302                                 break;
7303                         }
7304                 }
7305                 if (!fnd) {
7306                         SCTP_FREE_SONAME(sin);
7307                         SCTP_INP_RUNLOCK(inp);
7308                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7309                         return (ENOENT);
7310                 }
7311         }
7312         SCTP_INP_RUNLOCK(inp);
7313         (*addr) = (struct sockaddr *)sin;
7314         return (0);
7315 }
7316
7317 int
7318 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7319 {
7320         struct sockaddr_in *sin;
7321         int fnd;
7322         struct sockaddr_in *sin_a;
7323         struct sctp_inpcb *inp;
7324         struct sctp_tcb *stcb;
7325         struct sctp_nets *net;
7326
7327         /* Do the malloc first in case it blocks. */
7328         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7329         if (sin == NULL)
7330                 return (ENOMEM);
7331         sin->sin_family = AF_INET;
7332         sin->sin_len = sizeof(*sin);
7333
7334         inp = (struct sctp_inpcb *)so->so_pcb;
7335         if ((inp == NULL) ||
7336             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7337                 /* UDP type and listeners will drop out here */
7338                 SCTP_FREE_SONAME(sin);
7339                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7340                 return (ENOTCONN);
7341         }
7342         SCTP_INP_RLOCK(inp);
7343         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7344         if (stcb) {
7345                 SCTP_TCB_LOCK(stcb);
7346         }
7347         SCTP_INP_RUNLOCK(inp);
7348         if (stcb == NULL) {
7349                 SCTP_FREE_SONAME(sin);
7350                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7351                 return (ECONNRESET);
7352         }
7353         fnd = 0;
7354         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7355                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7356                 if (sin_a->sin_family == AF_INET) {
7357                         fnd = 1;
7358                         sin->sin_port = stcb->rport;
7359                         sin->sin_addr = sin_a->sin_addr;
7360                         break;
7361                 }
7362         }
7363         SCTP_TCB_UNLOCK(stcb);
7364         if (!fnd) {
7365                 /* No IPv4 address */
7366                 SCTP_FREE_SONAME(sin);
7367                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7368                 return (ENOENT);
7369         }
7370         (*addr) = (struct sockaddr *)sin;
7371         return (0);
7372 }
7373
7374 struct pr_usrreqs sctp_usrreqs = {
7375         .pru_abort = sctp_abort,
7376         .pru_accept = sctp_accept,
7377         .pru_attach = sctp_attach,
7378         .pru_bind = sctp_bind,
7379         .pru_connect = sctp_connect,
7380         .pru_control = in_control,
7381         .pru_close = sctp_close,
7382         .pru_detach = sctp_close,
7383         .pru_sopoll = sopoll_generic,
7384         .pru_flush = sctp_flush,
7385         .pru_disconnect = sctp_disconnect,
7386         .pru_listen = sctp_listen,
7387         .pru_peeraddr = sctp_peeraddr,
7388         .pru_send = sctp_sendm,
7389         .pru_shutdown = sctp_shutdown,
7390         .pru_sockaddr = sctp_ingetaddr,
7391         .pru_sosend = sctp_sosend,
7392         .pru_soreceive = sctp_soreceive
7393 };
7394
7395 #endif