sys/netinet/sctp_usrreq.c

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