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_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 858                                             0, M_NOWAIT, 1, MT_DATA);
 859                                         if (op_err) {
 860                                                 /*
 861                                                  * Fill in the user
 862                                                  * initiated abort
 863                                                  */
 864                                                 struct sctp_paramhdr *ph;
 865
 866                                                 SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
 867                                                 ph = mtod(op_err, struct sctp_paramhdr *);
 868                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 869                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
 870                                         }
 871                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 872                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 873                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 874                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 875                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 876                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 877                                         }
 878                                         SCTP_INP_RUNLOCK(inp);
 879                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 880                                         return (0);
 881                                 } else {
 882                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 883                                 }
 884                         }
 885                         soisdisconnecting(so);
 886                         SCTP_TCB_UNLOCK(stcb);
 887                         SCTP_INP_RUNLOCK(inp);
 888                         return (0);
 889                 }
 890                 /* not reached */
 891         } else {
 892                 /* UDP model does not support this */
 893                 SCTP_INP_RUNLOCK(inp);
 894                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 895                 return (EOPNOTSUPP);
 896         }
 897 }
 898
 899 int
 900 sctp_flush(struct socket *so, int how)
 901 {
 902         /*
 903          * We will just clear out the values and let subsequent close clear
 904          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 905          * they will not be able to read the data, the socket will block
 906          * that from happening.
 907          */
 908         struct sctp_inpcb *inp;
 909
 910         inp = (struct sctp_inpcb *)so->so_pcb;
 911         if (inp == NULL) {
 912                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 913                 return (EINVAL);
 914         }
 915         SCTP_INP_RLOCK(inp);
 916         /* For the 1 to many model this does nothing */
 917         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 918                 SCTP_INP_RUNLOCK(inp);
 919                 return (0);
 920         }
 921         SCTP_INP_RUNLOCK(inp);
 922         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 923                 /*
 924                  * First make sure the sb will be happy, we don't use these
 925                  * except maybe the count
 926                  */
 927                 SCTP_INP_WLOCK(inp);
 928                 SCTP_INP_READ_LOCK(inp);
 929                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 930                 SCTP_INP_READ_UNLOCK(inp);
 931                 SCTP_INP_WUNLOCK(inp);
 932                 so->so_rcv.sb_cc = 0;
 933                 so->so_rcv.sb_mbcnt = 0;
 934                 so->so_rcv.sb_mb = NULL;
 935         }
 936         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 937                 /*
 938                  * First make sure the sb will be happy, we don't use these
 939                  * except maybe the count
 940                  */
 941                 so->so_snd.sb_cc = 0;
 942                 so->so_snd.sb_mbcnt = 0;
 943                 so->so_snd.sb_mb = NULL;
 944
 945         }
 946         return (0);
 947 }
 948
 949 int
 950 sctp_shutdown(struct socket *so)
 951 {
 952         struct sctp_inpcb *inp;
 953
 954         inp = (struct sctp_inpcb *)so->so_pcb;
 955         if (inp == NULL) {
 956                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 957                 return (EINVAL);
 958         }
 959         SCTP_INP_RLOCK(inp);
 960         /* For UDP model this is a invalid call */
 961         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 962             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 963                 /* Restore the flags that the soshutdown took away. */
 964                 SOCKBUF_LOCK(&so->so_rcv);
 965                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 966                 SOCKBUF_UNLOCK(&so->so_rcv);
 967                 /* This proc will wakeup for read and do nothing (I hope) */
 968                 SCTP_INP_RUNLOCK(inp);
 969                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 970                 return (EOPNOTSUPP);
 971         }
 972         /*
 973          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 974          * or SHUT_RDWR. This means we put the shutdown flag against it.
 975          */
 976         {
 977                 struct sctp_tcb *stcb;
 978                 struct sctp_association *asoc;
 979
 980                 if ((so->so_state &
 981                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 982                         SCTP_INP_RUNLOCK(inp);
 983                         return (ENOTCONN);
 984                 }
 985                 socantsendmore(so);
 986
 987                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 988                 if (stcb == NULL) {
 989                         /*
 990                          * Ok we hit the case that the shutdown call was
 991                          * made after an abort or something. Nothing to do
 992                          * now.
 993                          */
 994                         SCTP_INP_RUNLOCK(inp);
 995                         return (0);
 996                 }
 997                 SCTP_TCB_LOCK(stcb);
 998                 asoc = &stcb->asoc;
 999                 if (TAILQ_EMPTY(&asoc->send_queue) &&
1000                     TAILQ_EMPTY(&asoc->sent_queue) &&
1001                     (asoc->stream_queue_cnt == 0)) {
1002                         if (asoc->locked_on_sending) {
1003                                 goto abort_anyway;
1004                         }
1005                         /* there is nothing queued to send, so I'm done... */
1006                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1007                                 /* only send SHUTDOWN the first time through */
1008                                 struct sctp_nets *netp;
1009
1010                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1011                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1012                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1013                                 }
1014                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1015                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1016                                 sctp_stop_timers_for_shutdown(stcb);
1017                                 if (stcb->asoc.alternate) {
1018                                         netp = stcb->asoc.alternate;
1019                                 } else {
1020                                         netp = stcb->asoc.primary_destination;
1021                                 }
1022                                 sctp_send_shutdown(stcb, netp);
1023                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1024                                     stcb->sctp_ep, stcb, netp);
1025                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1026                                     stcb->sctp_ep, stcb, netp);
1027                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1028                         }
1029                 } else {
1030                         /*
1031                          * we still got (or just got) data to send, so set
1032                          * SHUTDOWN_PENDING
1033                          */
1034                         struct sctp_nets *netp;
1035
1036                         if (stcb->asoc.alternate) {
1037                                 netp = stcb->asoc.alternate;
1038                         } else {
1039                                 netp = stcb->asoc.primary_destination;
1040                         }
1041
1042                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1043                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1044                             netp);
1045
1046                         if (asoc->locked_on_sending) {
1047                                 /* Locked to send out the data */
1048                                 struct sctp_stream_queue_pending *sp;
1049
1050                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1051                                 if (sp == NULL) {
1052                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1053                                             asoc->locked_on_sending->stream_no);
1054                                 } else {
1055                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1056                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1057                                         }
1058                                 }
1059                         }
1060                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1061                             TAILQ_EMPTY(&asoc->sent_queue) &&
1062                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1063                                 struct mbuf *op_err;
1064
1065                 abort_anyway:
1066                                 op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
1067                                     0, M_NOWAIT, 1, MT_DATA);
1068                                 if (op_err) {
1069                                         /* Fill in the user initiated abort */
1070                                         struct sctp_paramhdr *ph;
1071
1072                                         SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
1073                                         ph = mtod(op_err, struct sctp_paramhdr *);
1074                                         ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
1075                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
1076                                 }
1077                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1078                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1079                                     op_err, SCTP_SO_LOCKED);
1080                                 goto skip_unlock;
1081                         } else {
1082                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1083                         }
1084                 }
1085                 SCTP_TCB_UNLOCK(stcb);
1086         }
1087 skip_unlock:
1088         SCTP_INP_RUNLOCK(inp);
1089         return (0);
1090 }
1091
1092 /*
1093  * copies a "user" presentable address and removes embedded scope, etc.
1094  * returns 0 on success, 1 on error
1095  */
1096 static uint32_t
1097 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1098 {
1099 #ifdef INET6
1100         struct sockaddr_in6 lsa6;
1101
1102         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1103             &lsa6);
1104 #endif
1105         memcpy(ss, sa, sa->sa_len);
1106         return (0);
1107 }
1108
1109
1110
1111 /*
1112  * NOTE: assumes addr lock is held
1113  */
1114 static size_t
1115 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1116     struct sctp_tcb *stcb,
1117     size_t limit,
1118     struct sockaddr_storage *sas,
1119     uint32_t vrf_id)
1120 {
1121         struct sctp_ifn *sctp_ifn;
1122         struct sctp_ifa *sctp_ifa;
1123         size_t actual;
1124         int loopback_scope;
1125
1126 #if defined(INET)
1127         int ipv4_local_scope, ipv4_addr_legal;
1128
1129 #endif
1130 #if defined(INET6)
1131         int local_scope, site_scope, ipv6_addr_legal;
1132
1133 #endif
1134         struct sctp_vrf *vrf;
1135
1136         actual = 0;
1137         if (limit <= 0)
1138                 return (actual);
1139
1140         if (stcb) {
1141                 /* Turn on all the appropriate scope */
1142                 loopback_scope = stcb->asoc.scope.loopback_scope;
1143 #if defined(INET)
1144                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1145                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1146 #endif
1147 #if defined(INET6)
1148                 local_scope = stcb->asoc.scope.local_scope;
1149                 site_scope = stcb->asoc.scope.site_scope;
1150                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1151 #endif
1152         } else {
1153                 /* Use generic values for endpoints. */
1154                 loopback_scope = 1;
1155 #if defined(INET)
1156                 ipv4_local_scope = 1;
1157 #endif
1158 #if defined(INET6)
1159                 local_scope = 1;
1160                 site_scope = 1;
1161 #endif
1162                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1163 #if defined(INET6)
1164                         ipv6_addr_legal = 1;
1165 #endif
1166 #if defined(INET)
1167                         if (SCTP_IPV6_V6ONLY(inp)) {
1168                                 ipv4_addr_legal = 0;
1169                         } else {
1170                                 ipv4_addr_legal = 1;
1171                         }
1172 #endif
1173                 } else {
1174 #if defined(INET6)
1175                         ipv6_addr_legal = 0;
1176 #endif
1177 #if defined(INET)
1178                         ipv4_addr_legal = 1;
1179 #endif
1180                 }
1181         }
1182         vrf = sctp_find_vrf(vrf_id);
1183         if (vrf == NULL) {
1184                 return (0);
1185         }
1186         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1187                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1188                         if ((loopback_scope == 0) &&
1189                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1190                                 /* Skip loopback if loopback_scope not set */
1191                                 continue;
1192                         }
1193                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1194                                 if (stcb) {
1195                                         /*
1196                                          * For the BOUND-ALL case, the list
1197                                          * associated with a TCB is Always
1198                                          * considered a reverse list.. i.e.
1199                                          * it lists addresses that are NOT
1200                                          * part of the association. If this
1201                                          * is one of those we must skip it.
1202                                          */
1203                                         if (sctp_is_addr_restricted(stcb,
1204                                             sctp_ifa)) {
1205                                                 continue;
1206                                         }
1207                                 }
1208                                 switch (sctp_ifa->address.sa.sa_family) {
1209 #ifdef INET
1210                                 case AF_INET:
1211                                         if (ipv4_addr_legal) {
1212                                                 struct sockaddr_in *sin;
1213
1214                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1215                                                 if (sin->sin_addr.s_addr == 0) {
1216                                                         /*
1217                                                          * we skip
1218                                                          * unspecifed
1219                                                          * addresses
1220                                                          */
1221                                                         continue;
1222                                                 }
1223                                                 if ((ipv4_local_scope == 0) &&
1224                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1225                                                         continue;
1226                                                 }
1227 #ifdef INET6
1228                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1229                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1230                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1231                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1232                                                         actual += sizeof(struct sockaddr_in6);
1233                                                 } else {
1234 #endif
1235                                                         memcpy(sas, sin, sizeof(*sin));
1236                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1237                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1238                                                         actual += sizeof(*sin);
1239 #ifdef INET6
1240                                                 }
1241 #endif
1242                                                 if (actual >= limit) {
1243                                                         return (actual);
1244                                                 }
1245                                         } else {
1246                                                 continue;
1247                                         }
1248                                         break;
1249 #endif
1250 #ifdef INET6
1251                                 case AF_INET6:
1252                                         if (ipv6_addr_legal) {
1253                                                 struct sockaddr_in6 *sin6;
1254
1255                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1256                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1257                                                         /*
1258                                                          * we skip
1259                                                          * unspecifed
1260                                                          * addresses
1261                                                          */
1262                                                         continue;
1263                                                 }
1264                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1265                                                         if (local_scope == 0)
1266                                                                 continue;
1267                                                         if (sin6->sin6_scope_id == 0) {
1268                                                                 if (sa6_recoverscope(sin6) != 0)
1269                                                                         /*
1270                                                                          *
1271                                                                          * bad
1272                                                                          *
1273                                                                          * li
1274                                                                          * nk
1275                                                                          *
1276                                                                          * loc
1277                                                                          * al
1278                                                                          *
1279                                                                          * add
1280                                                                          * re
1281                                                                          * ss
1282                                                                          * */
1283                                                                         continue;
1284                                                         }
1285                                                 }
1286                                                 if ((site_scope == 0) &&
1287                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1288                                                         continue;
1289                                                 }
1290                                                 memcpy(sas, sin6, sizeof(*sin6));
1291                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1292                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1293                                                 actual += sizeof(*sin6);
1294                                                 if (actual >= limit) {
1295                                                         return (actual);
1296                                                 }
1297                                         } else {
1298                                                 continue;
1299                                         }
1300                                         break;
1301 #endif
1302                                 default:
1303                                         /* TSNH */
1304                                         break;
1305                                 }
1306                         }
1307                 }
1308         } else {
1309                 struct sctp_laddr *laddr;
1310
1311                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1312                         if (stcb) {
1313                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1314                                         continue;
1315                                 }
1316                         }
1317                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1318                                 continue;
1319                         switch (laddr->ifa->address.sa.sa_family) {
1320 #ifdef INET
1321                         case AF_INET:
1322                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1323                                 break;
1324 #endif
1325 #ifdef INET6
1326                         case AF_INET6:
1327                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1328                                 break;
1329 #endif
1330                         default:
1331                                 /* TSNH */
1332                                 break;
1333                         }
1334                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1335                             laddr->ifa->address.sa.sa_len);
1336                         actual += laddr->ifa->address.sa.sa_len;
1337                         if (actual >= limit) {
1338                                 return (actual);
1339                         }
1340                 }
1341         }
1342         return (actual);
1343 }
1344
1345 static size_t
1346 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1347     struct sctp_tcb *stcb,
1348     size_t limit,
1349     struct sockaddr_storage *sas)
1350 {
1351         size_t size = 0;
1352
1353         SCTP_IPI_ADDR_RLOCK();
1354         /* fill up addresses for the endpoint's default vrf */
1355         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1356             inp->def_vrf_id);
1357         SCTP_IPI_ADDR_RUNLOCK();
1358         return (size);
1359 }
1360
1361 /*
1362  * NOTE: assumes addr lock is held
1363  */
1364 static int
1365 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1366 {
1367         int cnt = 0;
1368         struct sctp_vrf *vrf = NULL;
1369
1370         /*
1371          * In both sub-set bound an bound_all cases we return the MAXIMUM
1372          * number of addresses that you COULD get. In reality the sub-set
1373          * bound may have an exclusion list for a given TCB OR in the
1374          * bound-all case a TCB may NOT include the loopback or other
1375          * addresses as well.
1376          */
1377         vrf = sctp_find_vrf(vrf_id);
1378         if (vrf == NULL) {
1379                 return (0);
1380         }
1381         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1382                 struct sctp_ifn *sctp_ifn;
1383                 struct sctp_ifa *sctp_ifa;
1384
1385                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1386                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1387                                 /* Count them if they are the right type */
1388                                 switch (sctp_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         } else {
1408                 struct sctp_laddr *laddr;
1409
1410                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1411                         switch (laddr->ifa->address.sa.sa_family) {
1412 #ifdef INET
1413                         case AF_INET:
1414                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1415                                         cnt += sizeof(struct sockaddr_in6);
1416                                 else
1417                                         cnt += sizeof(struct sockaddr_in);
1418                                 break;
1419 #endif
1420 #ifdef INET6
1421                         case AF_INET6:
1422                                 cnt += sizeof(struct sockaddr_in6);
1423                                 break;
1424 #endif
1425                         default:
1426                                 break;
1427                         }
1428                 }
1429         }
1430         return (cnt);
1431 }
1432
1433 static int
1434 sctp_count_max_addresses(struct sctp_inpcb *inp)
1435 {
1436         int cnt = 0;
1437
1438         SCTP_IPI_ADDR_RLOCK();
1439         /* count addresses for the endpoint's default VRF */
1440         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1441         SCTP_IPI_ADDR_RUNLOCK();
1442         return (cnt);
1443 }
1444
1445 static int
1446 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1447     size_t optsize, void *p, int delay)
1448 {
1449         int error = 0;
1450         int creat_lock_on = 0;
1451         struct sctp_tcb *stcb = NULL;
1452         struct sockaddr *sa;
1453         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1454         uint32_t vrf_id;
1455         int bad_addresses = 0;
1456         sctp_assoc_t *a_id;
1457
1458         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1459
1460         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1461             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1462                 /* We are already connected AND the TCP model */
1463                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1464                 return (EADDRINUSE);
1465         }
1466         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1467             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1468                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1469                 return (EINVAL);
1470         }
1471         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1472                 SCTP_INP_RLOCK(inp);
1473                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1474                 SCTP_INP_RUNLOCK(inp);
1475         }
1476         if (stcb) {
1477                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1478                 return (EALREADY);
1479         }
1480         SCTP_INP_INCR_REF(inp);
1481         SCTP_ASOC_CREATE_LOCK(inp);
1482         creat_lock_on = 1;
1483         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1484             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1485                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1486                 error = EFAULT;
1487                 goto out_now;
1488         }
1489         totaddrp = (int *)optval;
1490         totaddr = *totaddrp;
1491         sa = (struct sockaddr *)(totaddrp + 1);
1492         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1493         if ((stcb != NULL) || bad_addresses) {
1494                 /* Already have or am bring up an association */
1495                 SCTP_ASOC_CREATE_UNLOCK(inp);
1496                 creat_lock_on = 0;
1497                 if (stcb)
1498                         SCTP_TCB_UNLOCK(stcb);
1499                 if (bad_addresses == 0) {
1500                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1501                         error = EALREADY;
1502                 }
1503                 goto out_now;
1504         }
1505 #ifdef INET6
1506         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1507             (num_v6 > 0)) {
1508                 error = EINVAL;
1509                 goto out_now;
1510         }
1511         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1512             (num_v4 > 0)) {
1513                 struct in6pcb *inp6;
1514
1515                 inp6 = (struct in6pcb *)inp;
1516                 if (SCTP_IPV6_V6ONLY(inp6)) {
1517                         /*
1518                          * if IPV6_V6ONLY flag, ignore connections destined
1519                          * to a v4 addr or v4-mapped addr
1520                          */
1521                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1522                         error = EINVAL;
1523                         goto out_now;
1524                 }
1525         }
1526 #endif                          /* INET6 */
1527         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1528             SCTP_PCB_FLAGS_UNBOUND) {
1529                 /* Bind a ephemeral port */
1530                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1531                 if (error) {
1532                         goto out_now;
1533                 }
1534         }
1535         /* FIX ME: do we want to pass in a vrf on the connect call? */
1536         vrf_id = inp->def_vrf_id;
1537
1538
1539         /* We are GOOD to go */
1540         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1541             (struct thread *)p
1542             );
1543         if (stcb == NULL) {
1544                 /* Gak! no memory */
1545                 goto out_now;
1546         }
1547         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1548                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1549                 /* Set the connected flag so we can queue data */
1550                 soisconnecting(so);
1551         }
1552         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1553         /* move to second address */
1554         switch (sa->sa_family) {
1555 #ifdef INET
1556         case AF_INET:
1557                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1558                 break;
1559 #endif
1560 #ifdef INET6
1561         case AF_INET6:
1562                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1563                 break;
1564 #endif
1565         default:
1566                 break;
1567         }
1568
1569         error = 0;
1570         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1571         /* Fill in the return id */
1572         if (error) {
1573                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1574                 goto out_now;
1575         }
1576         a_id = (sctp_assoc_t *) optval;
1577         *a_id = sctp_get_associd(stcb);
1578
1579         /* initialize authentication parameters for the assoc */
1580         sctp_initialize_auth_params(inp, stcb);
1581
1582         if (delay) {
1583                 /* doing delayed connection */
1584                 stcb->asoc.delayed_connection = 1;
1585                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1586         } else {
1587                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1588                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1589         }
1590         SCTP_TCB_UNLOCK(stcb);
1591         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1592                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1593                 /* Set the connected flag so we can queue data */
1594                 soisconnecting(so);
1595         }
1596 out_now:
1597         if (creat_lock_on) {
1598                 SCTP_ASOC_CREATE_UNLOCK(inp);
1599         }
1600         SCTP_INP_DECR_REF(inp);
1601         return (error);
1602 }
1603
1604 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1605         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1606             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1607                 SCTP_INP_RLOCK(inp); \
1608                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1609                 if (stcb) { \
1610                         SCTP_TCB_LOCK(stcb); \
1611                 } \
1612                 SCTP_INP_RUNLOCK(inp); \
1613         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1614                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1615                 if (stcb == NULL) { \
1616                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1617                         error = ENOENT; \
1618                         break; \
1619                 } \
1620         } else { \
1621                 stcb = NULL; \
1622         } \
1623   }
1624
1625
1626 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1627         if (size < sizeof(type)) { \
1628                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1629                 error = EINVAL; \
1630                 break; \
1631         } else { \
1632                 destp = (type *)srcp; \
1633         } \
1634       }
1635
1636 static int
1637 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1638     void *p)
1639 {
1640         struct sctp_inpcb *inp = NULL;
1641         int error, val = 0;
1642         struct sctp_tcb *stcb = NULL;
1643
1644         if (optval == NULL) {
1645                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1646                 return (EINVAL);
1647         }
1648         inp = (struct sctp_inpcb *)so->so_pcb;
1649         if (inp == NULL) {
1650                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1651                 return EINVAL;
1652         }
1653         error = 0;
1654
1655         switch (optname) {
1656         case SCTP_NODELAY:
1657         case SCTP_AUTOCLOSE:
1658         case SCTP_EXPLICIT_EOR:
1659         case SCTP_AUTO_ASCONF:
1660         case SCTP_DISABLE_FRAGMENTS:
1661         case SCTP_I_WANT_MAPPED_V4_ADDR:
1662         case SCTP_USE_EXT_RCVINFO:
1663                 SCTP_INP_RLOCK(inp);
1664                 switch (optname) {
1665                 case SCTP_DISABLE_FRAGMENTS:
1666                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1667                         break;
1668                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1669                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1670                         break;
1671                 case SCTP_AUTO_ASCONF:
1672                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1673                                 /* only valid for bound all sockets */
1674                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1675                         } else {
1676                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1677                                 error = EINVAL;
1678                                 goto flags_out;
1679                         }
1680                         break;
1681                 case SCTP_EXPLICIT_EOR:
1682                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1683                         break;
1684                 case SCTP_NODELAY:
1685                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1686                         break;
1687                 case SCTP_USE_EXT_RCVINFO:
1688                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1689                         break;
1690                 case SCTP_AUTOCLOSE:
1691                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1692                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1693                         else
1694                                 val = 0;
1695                         break;
1696
1697                 default:
1698                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1699                         error = ENOPROTOOPT;
1700                 }               /* end switch (sopt->sopt_name) */
1701                 if (*optsize < sizeof(val)) {
1702                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1703                         error = EINVAL;
1704                 }
1705 flags_out:
1706                 SCTP_INP_RUNLOCK(inp);
1707                 if (error == 0) {
1708                         /* return the option value */
1709                         *(int *)optval = val;
1710                         *optsize = sizeof(val);
1711                 }
1712                 break;
1713         case SCTP_GET_PACKET_LOG:
1714                 {
1715 #ifdef  SCTP_PACKET_LOGGING
1716                         uint8_t *target;
1717                         int ret;
1718
1719                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1720                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1721                         *optsize = ret;
1722 #else
1723                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1724                         error = EOPNOTSUPP;
1725 #endif
1726                         break;
1727                 }
1728         case SCTP_REUSE_PORT:
1729                 {
1730                         uint32_t *value;
1731
1732                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1733                                 /* Can't do this for a 1-m socket */
1734                                 error = EINVAL;
1735                                 break;
1736                         }
1737                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1738                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1739                         *optsize = sizeof(uint32_t);
1740                         break;
1741                 }
1742         case SCTP_PARTIAL_DELIVERY_POINT:
1743                 {
1744                         uint32_t *value;
1745
1746                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1747                         *value = inp->partial_delivery_point;
1748                         *optsize = sizeof(uint32_t);
1749                         break;
1750                 }
1751         case SCTP_FRAGMENT_INTERLEAVE:
1752                 {
1753                         uint32_t *value;
1754
1755                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1756                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1757                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1758                                         *value = SCTP_FRAG_LEVEL_2;
1759                                 } else {
1760                                         *value = SCTP_FRAG_LEVEL_1;
1761                                 }
1762                         } else {
1763                                 *value = SCTP_FRAG_LEVEL_0;
1764                         }
1765                         *optsize = sizeof(uint32_t);
1766                         break;
1767                 }
1768         case SCTP_CMT_ON_OFF:
1769                 {
1770                         struct sctp_assoc_value *av;
1771
1772                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1773                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1774                         if (stcb) {
1775                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1776                                 SCTP_TCB_UNLOCK(stcb);
1777                         } else {
1778                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1779                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1780                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1781                                         SCTP_INP_RLOCK(inp);
1782                                         av->assoc_value = inp->sctp_cmt_on_off;
1783                                         SCTP_INP_RUNLOCK(inp);
1784                                 } else {
1785                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1786                                         error = EINVAL;
1787                                 }
1788                         }
1789                         if (error == 0) {
1790                                 *optsize = sizeof(struct sctp_assoc_value);
1791                         }
1792                         break;
1793                 }
1794         case SCTP_PLUGGABLE_CC:
1795                 {
1796                         struct sctp_assoc_value *av;
1797
1798                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1799                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1800                         if (stcb) {
1801                                 av->assoc_value = stcb->asoc.congestion_control_module;
1802                                 SCTP_TCB_UNLOCK(stcb);
1803                         } else {
1804                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1805                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1806                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1807                                         SCTP_INP_RLOCK(inp);
1808                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1809                                         SCTP_INP_RUNLOCK(inp);
1810                                 } else {
1811                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1812                                         error = EINVAL;
1813                                 }
1814                         }
1815                         if (error == 0) {
1816                                 *optsize = sizeof(struct sctp_assoc_value);
1817                         }
1818                         break;
1819                 }
1820         case SCTP_CC_OPTION:
1821                 {
1822                         struct sctp_cc_option *cc_opt;
1823
1824                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1825                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1826                         if (stcb == NULL) {
1827                                 error = EINVAL;
1828                         } else {
1829                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1830                                         error = ENOTSUP;
1831                                 } else {
1832                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1833                                         *optsize = sizeof(struct sctp_cc_option);
1834                                 }
1835                                 SCTP_TCB_UNLOCK(stcb);
1836                         }
1837                         break;
1838                 }
1839         case SCTP_PLUGGABLE_SS:
1840                 {
1841                         struct sctp_assoc_value *av;
1842
1843                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1844                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1845                         if (stcb) {
1846                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1847                                 SCTP_TCB_UNLOCK(stcb);
1848                         } else {
1849                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1850                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1851                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1852                                         SCTP_INP_RLOCK(inp);
1853                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1854                                         SCTP_INP_RUNLOCK(inp);
1855                                 } else {
1856                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1857                                         error = EINVAL;
1858                                 }
1859                         }
1860                         if (error == 0) {
1861                                 *optsize = sizeof(struct sctp_assoc_value);
1862                         }
1863                         break;
1864                 }
1865         case SCTP_SS_VALUE:
1866                 {
1867                         struct sctp_stream_value *av;
1868
1869                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1870                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1871                         if (stcb) {
1872                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1873                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1874                                     &av->stream_value) < 0)) {
1875                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1876                                         error = EINVAL;
1877                                 } else {
1878                                         *optsize = sizeof(struct sctp_stream_value);
1879                                 }
1880                                 SCTP_TCB_UNLOCK(stcb);
1881                         } else {
1882                                 /*
1883                                  * Can't get stream value without
1884                                  * association
1885                                  */
1886                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1887                                 error = EINVAL;
1888                         }
1889                         break;
1890                 }
1891         case SCTP_GET_ADDR_LEN:
1892                 {
1893                         struct sctp_assoc_value *av;
1894
1895                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1896                         error = EINVAL;
1897 #ifdef INET
1898                         if (av->assoc_value == AF_INET) {
1899                                 av->assoc_value = sizeof(struct sockaddr_in);
1900                                 error = 0;
1901                         }
1902 #endif
1903 #ifdef INET6
1904                         if (av->assoc_value == AF_INET6) {
1905                                 av->assoc_value = sizeof(struct sockaddr_in6);
1906                                 error = 0;
1907                         }
1908 #endif
1909                         if (error) {
1910                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1911                         } else {
1912                                 *optsize = sizeof(struct sctp_assoc_value);
1913                         }
1914                         break;
1915                 }
1916         case SCTP_GET_ASSOC_NUMBER:
1917                 {
1918                         uint32_t *value, cnt;
1919
1920                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1921                         cnt = 0;
1922                         SCTP_INP_RLOCK(inp);
1923                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1924                                 cnt++;
1925                         }
1926                         SCTP_INP_RUNLOCK(inp);
1927                         *value = cnt;
1928                         *optsize = sizeof(uint32_t);
1929                         break;
1930                 }
1931         case SCTP_GET_ASSOC_ID_LIST:
1932                 {
1933                         struct sctp_assoc_ids *ids;
1934                         unsigned int at, limit;
1935
1936                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1937                         at = 0;
1938                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1939                         SCTP_INP_RLOCK(inp);
1940                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1941                                 if (at < limit) {
1942                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1943                                 } else {
1944                                         error = EINVAL;
1945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1946                                         break;
1947                                 }
1948                         }
1949                         SCTP_INP_RUNLOCK(inp);
1950                         if (error == 0) {
1951                                 ids->gaids_number_of_ids = at;
1952                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1953                         }
1954                         break;
1955                 }
1956         case SCTP_CONTEXT:
1957                 {
1958                         struct sctp_assoc_value *av;
1959
1960                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1961                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1962
1963                         if (stcb) {
1964                                 av->assoc_value = stcb->asoc.context;
1965                                 SCTP_TCB_UNLOCK(stcb);
1966                         } else {
1967                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1968                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1969                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1970                                         SCTP_INP_RLOCK(inp);
1971                                         av->assoc_value = inp->sctp_context;
1972                                         SCTP_INP_RUNLOCK(inp);
1973                                 } else {
1974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1975                                         error = EINVAL;
1976                                 }
1977                         }
1978                         if (error == 0) {
1979                                 *optsize = sizeof(struct sctp_assoc_value);
1980                         }
1981                         break;
1982                 }
1983         case SCTP_VRF_ID:
1984                 {
1985                         uint32_t *default_vrfid;
1986
1987                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1988                         *default_vrfid = inp->def_vrf_id;
1989                         *optsize = sizeof(uint32_t);
1990                         break;
1991                 }
1992         case SCTP_GET_ASOC_VRF:
1993                 {
1994                         struct sctp_assoc_value *id;
1995
1996                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1997                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1998                         if (stcb == NULL) {
1999                                 error = EINVAL;
2000                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2001                         } else {
2002                                 id->assoc_value = stcb->asoc.vrf_id;
2003                                 *optsize = sizeof(struct sctp_assoc_value);
2004                         }
2005                         break;
2006                 }
2007         case SCTP_GET_VRF_IDS:
2008                 {
2009                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2010                         error = EOPNOTSUPP;
2011                         break;
2012                 }
2013         case SCTP_GET_NONCE_VALUES:
2014                 {
2015                         struct sctp_get_nonce_values *gnv;
2016
2017                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2018                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2019
2020                         if (stcb) {
2021                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2022                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2023                                 SCTP_TCB_UNLOCK(stcb);
2024                                 *optsize = sizeof(struct sctp_get_nonce_values);
2025                         } else {
2026                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2027                                 error = ENOTCONN;
2028                         }
2029                         break;
2030                 }
2031         case SCTP_DELAYED_SACK:
2032                 {
2033                         struct sctp_sack_info *sack;
2034
2035                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2036                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2037                         if (stcb) {
2038                                 sack->sack_delay = stcb->asoc.delayed_ack;
2039                                 sack->sack_freq = stcb->asoc.sack_freq;
2040                                 SCTP_TCB_UNLOCK(stcb);
2041                         } else {
2042                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2043                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2044                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2045                                         SCTP_INP_RLOCK(inp);
2046                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2047                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2048                                         SCTP_INP_RUNLOCK(inp);
2049                                 } else {
2050                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2051                                         error = EINVAL;
2052                                 }
2053                         }
2054                         if (error == 0) {
2055                                 *optsize = sizeof(struct sctp_sack_info);
2056                         }
2057                         break;
2058                 }
2059         case SCTP_GET_SNDBUF_USE:
2060                 {
2061                         struct sctp_sockstat *ss;
2062
2063                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2064                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2065
2066                         if (stcb) {
2067                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2068                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2069                                     stcb->asoc.size_on_all_streams);
2070                                 SCTP_TCB_UNLOCK(stcb);
2071                                 *optsize = sizeof(struct sctp_sockstat);
2072                         } else {
2073                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2074                                 error = ENOTCONN;
2075                         }
2076                         break;
2077                 }
2078         case SCTP_MAX_BURST:
2079                 {
2080                         struct sctp_assoc_value *av;
2081
2082                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2083                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2084
2085                         if (stcb) {
2086                                 av->assoc_value = stcb->asoc.max_burst;
2087                                 SCTP_TCB_UNLOCK(stcb);
2088                         } else {
2089                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2090                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2091                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2092                                         SCTP_INP_RLOCK(inp);
2093                                         av->assoc_value = inp->sctp_ep.max_burst;
2094                                         SCTP_INP_RUNLOCK(inp);
2095                                 } else {
2096                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2097                                         error = EINVAL;
2098                                 }
2099                         }
2100                         if (error == 0) {
2101                                 *optsize = sizeof(struct sctp_assoc_value);
2102                         }
2103                         break;
2104                 }
2105         case SCTP_MAXSEG:
2106                 {
2107                         struct sctp_assoc_value *av;
2108                         int ovh;
2109
2110                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2111                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2112
2113                         if (stcb) {
2114                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2115                                 SCTP_TCB_UNLOCK(stcb);
2116                         } else {
2117                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2118                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2119                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2120                                         SCTP_INP_RLOCK(inp);
2121                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2122                                                 ovh = SCTP_MED_OVERHEAD;
2123                                         } else {
2124                                                 ovh = SCTP_MED_V4_OVERHEAD;
2125                                         }
2126                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2127                                                 av->assoc_value = 0;
2128                                         else
2129                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2130                                         SCTP_INP_RUNLOCK(inp);
2131                                 } else {
2132                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2133                                         error = EINVAL;
2134                                 }
2135                         }
2136                         if (error == 0) {
2137                                 *optsize = sizeof(struct sctp_assoc_value);
2138                         }
2139                         break;
2140                 }
2141         case SCTP_GET_STAT_LOG:
2142                 error = sctp_fill_stat_log(optval, optsize);
2143                 break;
2144         case SCTP_EVENTS:
2145                 {
2146                         struct sctp_event_subscribe *events;
2147
2148                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2149                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2150                         SCTP_INP_RLOCK(inp);
2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2152                                 events->sctp_data_io_event = 1;
2153
2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2155                                 events->sctp_association_event = 1;
2156
2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2158                                 events->sctp_address_event = 1;
2159
2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2161                                 events->sctp_send_failure_event = 1;
2162
2163                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2164                                 events->sctp_peer_error_event = 1;
2165
2166                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2167                                 events->sctp_shutdown_event = 1;
2168
2169                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2170                                 events->sctp_partial_delivery_event = 1;
2171
2172                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2173                                 events->sctp_adaptation_layer_event = 1;
2174
2175                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2176                                 events->sctp_authentication_event = 1;
2177
2178                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2179                                 events->sctp_sender_dry_event = 1;
2180
2181                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2182                                 events->sctp_stream_reset_event = 1;
2183                         SCTP_INP_RUNLOCK(inp);
2184                         *optsize = sizeof(struct sctp_event_subscribe);
2185                         break;
2186                 }
2187         case SCTP_ADAPTATION_LAYER:
2188                 {
2189                         uint32_t *value;
2190
2191                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2192
2193                         SCTP_INP_RLOCK(inp);
2194                         *value = inp->sctp_ep.adaptation_layer_indicator;
2195                         SCTP_INP_RUNLOCK(inp);
2196                         *optsize = sizeof(uint32_t);
2197                         break;
2198                 }
2199         case SCTP_SET_INITIAL_DBG_SEQ:
2200                 {
2201                         uint32_t *value;
2202
2203                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2204                         SCTP_INP_RLOCK(inp);
2205                         *value = inp->sctp_ep.initial_sequence_debug;
2206                         SCTP_INP_RUNLOCK(inp);
2207                         *optsize = sizeof(uint32_t);
2208                         break;
2209                 }
2210         case SCTP_GET_LOCAL_ADDR_SIZE:
2211                 {
2212                         uint32_t *value;
2213
2214                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2215                         SCTP_INP_RLOCK(inp);
2216                         *value = sctp_count_max_addresses(inp);
2217                         SCTP_INP_RUNLOCK(inp);
2218                         *optsize = sizeof(uint32_t);
2219                         break;
2220                 }
2221         case SCTP_GET_REMOTE_ADDR_SIZE:
2222                 {
2223                         uint32_t *value;
2224                         size_t size;
2225                         struct sctp_nets *net;
2226
2227                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2228                         /* FIXME MT: change to sctp_assoc_value? */
2229                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2230
2231                         if (stcb) {
2232                                 size = 0;
2233                                 /* Count the sizes */
2234                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2235                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2236                                                 size += sizeof(struct sockaddr_in6);
2237                                         } else {
2238                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2239 #ifdef INET
2240                                                 case AF_INET:
2241                                                         size += sizeof(struct sockaddr_in);
2242                                                         break;
2243 #endif
2244 #ifdef INET6
2245                                                 case AF_INET6:
2246                                                         size += sizeof(struct sockaddr_in6);
2247                                                         break;
2248 #endif
2249                                                 default:
2250                                                         break;
2251                                                 }
2252                                         }
2253                                 }
2254                                 SCTP_TCB_UNLOCK(stcb);
2255                                 *value = (uint32_t) size;
2256                                 *optsize = sizeof(uint32_t);
2257                         } else {
2258                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2259                                 error = ENOTCONN;
2260                         }
2261                         break;
2262                 }
2263         case SCTP_GET_PEER_ADDRESSES:
2264                 /*
2265                  * Get the address information, an array is passed in to
2266                  * fill up we pack it.
2267                  */
2268                 {
2269                         size_t cpsz, left;
2270                         struct sockaddr_storage *sas;
2271                         struct sctp_nets *net;
2272                         struct sctp_getaddresses *saddr;
2273
2274                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2275                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2276
2277                         if (stcb) {
2278                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2279                                 *optsize = sizeof(struct sctp_getaddresses);
2280                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2281
2282                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2283                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2284                                                 cpsz = sizeof(struct sockaddr_in6);
2285                                         } else {
2286                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2287 #ifdef INET
2288                                                 case AF_INET:
2289                                                         cpsz = sizeof(struct sockaddr_in);
2290                                                         break;
2291 #endif
2292 #ifdef INET6
2293                                                 case AF_INET6:
2294                                                         cpsz = sizeof(struct sockaddr_in6);
2295                                                         break;
2296 #endif
2297                                                 default:
2298                                                         cpsz = 0;
2299                                                         break;
2300                                                 }
2301                                         }
2302                                         if (cpsz == 0) {
2303                                                 break;
2304                                         }
2305                                         if (left < cpsz) {
2306                                                 /* not enough room. */
2307                                                 break;
2308                                         }
2309 #if defined(INET) && defined(INET6)
2310                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2311                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2312                                                 /* Must map the address */
2313                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2314                                                     (struct sockaddr_in6 *)sas);
2315                                         } else {
2316 #endif
2317                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2318 #if defined(INET) && defined(INET6)
2319                                         }
2320 #endif
2321                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2322
2323                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2324                                         left -= cpsz;
2325                                         *optsize += cpsz;
2326                                 }
2327                                 SCTP_TCB_UNLOCK(stcb);
2328                         } else {
2329                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2330                                 error = ENOENT;
2331                         }
2332                         break;
2333                 }
2334         case SCTP_GET_LOCAL_ADDRESSES:
2335                 {
2336                         size_t limit, actual;
2337                         struct sockaddr_storage *sas;
2338                         struct sctp_getaddresses *saddr;
2339
2340                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2341                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2342
2343                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2344                         limit = *optsize - sizeof(sctp_assoc_t);
2345                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2346                         if (stcb) {
2347                                 SCTP_TCB_UNLOCK(stcb);
2348                         }
2349                         *optsize = sizeof(struct sockaddr_storage) + actual;
2350                         break;
2351                 }
2352         case SCTP_PEER_ADDR_PARAMS:
2353                 {
2354                         struct sctp_paddrparams *paddrp;
2355                         struct sctp_nets *net;
2356
2357                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2358                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2359
2360                         net = NULL;
2361                         if (stcb) {
2362                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2363                         } else {
2364                                 /*
2365                                  * We increment here since
2366                                  * sctp_findassociation_ep_addr() wil do a
2367                                  * decrement if it finds the stcb as long as
2368                                  * the locked tcb (last argument) is NOT a
2369                                  * TCB.. aka NULL.
2370                                  */
2371                                 SCTP_INP_INCR_REF(inp);
2372                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2373                                 if (stcb == NULL) {
2374                                         SCTP_INP_DECR_REF(inp);
2375                                 }
2376                         }
2377                         if (stcb && (net == NULL)) {
2378                                 struct sockaddr *sa;
2379
2380                                 sa = (struct sockaddr *)&paddrp->spp_address;
2381 #ifdef INET
2382                                 if (sa->sa_family == AF_INET) {
2383                                         struct sockaddr_in *sin;
2384
2385                                         sin = (struct sockaddr_in *)sa;
2386                                         if (sin->sin_addr.s_addr) {
2387                                                 error = EINVAL;
2388                                                 SCTP_TCB_UNLOCK(stcb);
2389                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2390                                                 break;
2391                                         }
2392                                 } else
2393 #endif
2394 #ifdef INET6
2395                                 if (sa->sa_family == AF_INET6) {
2396                                         struct sockaddr_in6 *sin6;
2397
2398                                         sin6 = (struct sockaddr_in6 *)sa;
2399                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2400                                                 error = EINVAL;
2401                                                 SCTP_TCB_UNLOCK(stcb);
2402                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2403                                                 break;
2404                                         }
2405                                 } else
2406 #endif
2407                                 {
2408                                         error = EAFNOSUPPORT;
2409                                         SCTP_TCB_UNLOCK(stcb);
2410                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2411                                         break;
2412                                 }
2413                         }
2414                         if (stcb) {
2415                                 /* Applies to the specific association */
2416                                 paddrp->spp_flags = 0;
2417                                 if (net) {
2418                                         int ovh;
2419
2420                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2421                                                 ovh = SCTP_MED_OVERHEAD;
2422                                         } else {
2423                                                 ovh = SCTP_MED_V4_OVERHEAD;
2424                                         }
2425
2426                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2427                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2428                                         paddrp->spp_pathmtu = net->mtu - ovh;
2429                                         /* get flags for HB */
2430                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2431                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2432                                         } else {
2433                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2434                                         }
2435                                         /* get flags for PMTU */
2436                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2437                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2438                                         } else {
2439                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2440                                         }
2441                                         if (net->dscp & 0x01) {
2442                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2443                                                 paddrp->spp_flags |= SPP_DSCP;
2444                                         }
2445 #ifdef INET6
2446                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2447                                             (net->flowlabel & 0x80000000)) {
2448                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2449                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2450                                         }
2451 #endif
2452                                 } else {
2453                                         /*
2454                                          * No destination so return default
2455                                          * value
2456                                          */
2457                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2458                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2459                                         if (stcb->asoc.default_dscp & 0x01) {
2460                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2461                                                 paddrp->spp_flags |= SPP_DSCP;
2462                                         }
2463 #ifdef INET6
2464                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2465                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2466                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2467                                         }
2468 #endif
2469                                         /* default settings should be these */
2470                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2471                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2472                                         } else {
2473                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2474                                         }
2475                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2476                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2477                                         } else {
2478                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2479                                         }
2480                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2481                                 }
2482                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2483                                 SCTP_TCB_UNLOCK(stcb);
2484                         } else {
2485                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2486                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2487                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2488                                         /* Use endpoint defaults */
2489                                         SCTP_INP_RLOCK(inp);
2490                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2491                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2492                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2493                                         /* get inp's default */
2494                                         if (inp->sctp_ep.default_dscp & 0x01) {
2495                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2496                                                 paddrp->spp_flags |= SPP_DSCP;
2497                                         }
2498 #ifdef INET6
2499                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2500                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2501                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2502                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2503                                         }
2504 #endif
2505                                         /* can't return this */
2506                                         paddrp->spp_pathmtu = 0;
2507
2508                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2509                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2510                                         } else {
2511                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2512                                         }
2513                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2514                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2515                                         } else {
2516                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2517                                         }
2518                                         SCTP_INP_RUNLOCK(inp);
2519                                 } else {
2520                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2521                                         error = EINVAL;
2522                                 }
2523                         }
2524                         if (error == 0) {
2525                                 *optsize = sizeof(struct sctp_paddrparams);
2526                         }
2527                         break;
2528                 }
2529         case SCTP_GET_PEER_ADDR_INFO:
2530                 {
2531                         struct sctp_paddrinfo *paddri;
2532                         struct sctp_nets *net;
2533
2534                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2535                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2536
2537                         net = NULL;
2538                         if (stcb) {
2539                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2540                         } else {
2541                                 /*
2542                                  * We increment here since
2543                                  * sctp_findassociation_ep_addr() wil do a
2544                                  * decrement if it finds the stcb as long as
2545                                  * the locked tcb (last argument) is NOT a
2546                                  * TCB.. aka NULL.
2547                                  */
2548                                 SCTP_INP_INCR_REF(inp);
2549                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2550                                 if (stcb == NULL) {
2551                                         SCTP_INP_DECR_REF(inp);
2552                                 }
2553                         }
2554
2555                         if ((stcb) && (net)) {
2556                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2557                                         /* It's unconfirmed */
2558                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2559                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2560                                         /* It's active */
2561                                         paddri->spinfo_state = SCTP_ACTIVE;
2562                                 } else {
2563                                         /* It's inactive */
2564                                         paddri->spinfo_state = SCTP_INACTIVE;
2565                                 }
2566                                 paddri->spinfo_cwnd = net->cwnd;
2567                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2568                                 paddri->spinfo_rto = net->RTO;
2569                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2570                                 paddri->spinfo_mtu = net->mtu;
2571                                 SCTP_TCB_UNLOCK(stcb);
2572                                 *optsize = sizeof(struct sctp_paddrinfo);
2573                         } else {
2574                                 if (stcb) {
2575                                         SCTP_TCB_UNLOCK(stcb);
2576                                 }
2577                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2578                                 error = ENOENT;
2579                         }
2580                         break;
2581                 }
2582         case SCTP_PCB_STATUS:
2583                 {
2584                         struct sctp_pcbinfo *spcb;
2585
2586                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2587                         sctp_fill_pcbinfo(spcb);
2588                         *optsize = sizeof(struct sctp_pcbinfo);
2589                         break;
2590                 }
2591         case SCTP_STATUS:
2592                 {
2593                         struct sctp_nets *net;
2594                         struct sctp_status *sstat;
2595
2596                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2597                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2598
2599                         if (stcb == NULL) {
2600                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2601                                 error = EINVAL;
2602                                 break;
2603                         }
2604                         /*
2605                          * I think passing the state is fine since
2606                          * sctp_constants.h will be available to the user
2607                          * land.
2608                          */
2609                         sstat->sstat_state = stcb->asoc.state;
2610                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2611                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2612                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2613                         /*
2614                          * We can't include chunks that have been passed to
2615                          * the socket layer. Only things in queue.
2616                          */
2617                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2618                             stcb->asoc.cnt_on_all_streams);
2619
2620
2621                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2622                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2623                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2624                         memcpy(&sstat->sstat_primary.spinfo_address,
2625                             &stcb->asoc.primary_destination->ro._l_addr,
2626                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2627                         net = stcb->asoc.primary_destination;
2628                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2629                         /*
2630                          * Again the user can get info from sctp_constants.h
2631                          * for what the state of the network is.
2632                          */
2633                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2634                                 /* It's unconfirmed */
2635                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2636                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2637                                 /* It's active */
2638                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2639                         } else {
2640                                 /* It's inactive */
2641                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2642                         }
2643                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2644                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2645                         sstat->sstat_primary.spinfo_rto = net->RTO;
2646                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2647                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2648                         SCTP_TCB_UNLOCK(stcb);
2649                         *optsize = sizeof(struct sctp_status);
2650                         break;
2651                 }
2652         case SCTP_RTOINFO:
2653                 {
2654                         struct sctp_rtoinfo *srto;
2655
2656                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2657                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2658
2659                         if (stcb) {
2660                                 srto->srto_initial = stcb->asoc.initial_rto;
2661                                 srto->srto_max = stcb->asoc.maxrto;
2662                                 srto->srto_min = stcb->asoc.minrto;
2663                                 SCTP_TCB_UNLOCK(stcb);
2664                         } else {
2665                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2666                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2667                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2668                                         SCTP_INP_RLOCK(inp);
2669                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2670                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2671                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2672                                         SCTP_INP_RUNLOCK(inp);
2673                                 } else {
2674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2675                                         error = EINVAL;
2676                                 }
2677                         }
2678                         if (error == 0) {
2679                                 *optsize = sizeof(struct sctp_rtoinfo);
2680                         }
2681                         break;
2682                 }
2683         case SCTP_TIMEOUTS:
2684                 {
2685                         struct sctp_timeouts *stimo;
2686
2687                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2688                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2689
2690                         if (stcb) {
2691                                 stimo->stimo_init = stcb->asoc.timoinit;
2692                                 stimo->stimo_data = stcb->asoc.timodata;
2693                                 stimo->stimo_sack = stcb->asoc.timosack;
2694                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2695                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2696                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2697                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2698                                 SCTP_TCB_UNLOCK(stcb);
2699                                 *optsize = sizeof(struct sctp_timeouts);
2700                         } else {
2701                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2702                                 error = EINVAL;
2703                         }
2704                         break;
2705                 }
2706         case SCTP_ASSOCINFO:
2707                 {
2708                         struct sctp_assocparams *sasoc;
2709
2710                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2711                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2712
2713                         if (stcb) {
2714                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2715                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2716                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2717                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2718                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2719                                 SCTP_TCB_UNLOCK(stcb);
2720                         } else {
2721                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2722                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2723                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2724                                         SCTP_INP_RLOCK(inp);
2725                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2726                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2727                                         sasoc->sasoc_number_peer_destinations = 0;
2728                                         sasoc->sasoc_peer_rwnd = 0;
2729                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2730                                         SCTP_INP_RUNLOCK(inp);
2731                                 } else {
2732                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2733                                         error = EINVAL;
2734                                 }
2735                         }
2736                         if (error == 0) {
2737                                 *optsize = sizeof(struct sctp_assocparams);
2738                         }
2739                         break;
2740                 }
2741         case SCTP_DEFAULT_SEND_PARAM:
2742                 {
2743                         struct sctp_sndrcvinfo *s_info;
2744
2745                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2746                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2747
2748                         if (stcb) {
2749                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2750                                 SCTP_TCB_UNLOCK(stcb);
2751                         } else {
2752                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2753                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2754                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2755                                         SCTP_INP_RLOCK(inp);
2756                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2757                                         SCTP_INP_RUNLOCK(inp);
2758                                 } else {
2759                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2760                                         error = EINVAL;
2761                                 }
2762                         }
2763                         if (error == 0) {
2764                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2765                         }
2766                         break;
2767                 }
2768         case SCTP_INITMSG:
2769                 {
2770                         struct sctp_initmsg *sinit;
2771
2772                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2773                         SCTP_INP_RLOCK(inp);
2774                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2775                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2776                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2777                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2778                         SCTP_INP_RUNLOCK(inp);
2779                         *optsize = sizeof(struct sctp_initmsg);
2780                         break;
2781                 }
2782         case SCTP_PRIMARY_ADDR:
2783                 /* we allow a "get" operation on this */
2784                 {
2785                         struct sctp_setprim *ssp;
2786
2787                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2788                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2789
2790                         if (stcb) {
2791                                 /* simply copy out the sockaddr_storage... */
2792                                 int len;
2793
2794                                 len = *optsize;
2795                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2796                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2797
2798                                 memcpy(&ssp->ssp_addr,
2799                                     &stcb->asoc.primary_destination->ro._l_addr,
2800                                     len);
2801                                 SCTP_TCB_UNLOCK(stcb);
2802                                 *optsize = sizeof(struct sctp_setprim);
2803                         } else {
2804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2805                                 error = EINVAL;
2806                         }
2807                         break;
2808                 }
2809         case SCTP_HMAC_IDENT:
2810                 {
2811                         struct sctp_hmacalgo *shmac;
2812                         sctp_hmaclist_t *hmaclist;
2813                         uint32_t size;
2814                         int i;
2815
2816                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2817
2818                         SCTP_INP_RLOCK(inp);
2819                         hmaclist = inp->sctp_ep.local_hmacs;
2820                         if (hmaclist == NULL) {
2821                                 /* no HMACs to return */
2822                                 *optsize = sizeof(*shmac);
2823                                 SCTP_INP_RUNLOCK(inp);
2824                                 break;
2825                         }
2826                         /* is there room for all of the hmac ids? */
2827                         size = sizeof(*shmac) + (hmaclist->num_algo *
2828                             sizeof(shmac->shmac_idents[0]));
2829                         if ((size_t)(*optsize) < size) {
2830                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2831                                 error = EINVAL;
2832                                 SCTP_INP_RUNLOCK(inp);
2833                                 break;
2834                         }
2835                         /* copy in the list */
2836                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2837                         for (i = 0; i < hmaclist->num_algo; i++) {
2838                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2839                         }
2840                         SCTP_INP_RUNLOCK(inp);
2841                         *optsize = size;
2842                         break;
2843                 }
2844         case SCTP_AUTH_ACTIVE_KEY:
2845                 {
2846                         struct sctp_authkeyid *scact;
2847
2848                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2849                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2850
2851                         if (stcb) {
2852                                 /* get the active key on the assoc */
2853                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2854                                 SCTP_TCB_UNLOCK(stcb);
2855                         } else {
2856                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2857                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2858                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2859                                         /* get the endpoint active key */
2860                                         SCTP_INP_RLOCK(inp);
2861                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2862                                         SCTP_INP_RUNLOCK(inp);
2863                                 } else {
2864                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2865                                         error = EINVAL;
2866                                 }
2867                         }
2868                         if (error == 0) {
2869                                 *optsize = sizeof(struct sctp_authkeyid);
2870                         }
2871                         break;
2872                 }
2873         case SCTP_LOCAL_AUTH_CHUNKS:
2874                 {
2875                         struct sctp_authchunks *sac;
2876                         sctp_auth_chklist_t *chklist = NULL;
2877                         size_t size = 0;
2878
2879                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2880                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2881
2882                         if (stcb) {
2883                                 /* get off the assoc */
2884                                 chklist = stcb->asoc.local_auth_chunks;
2885                                 /* is there enough space? */
2886                                 size = sctp_auth_get_chklist_size(chklist);
2887                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2888                                         error = EINVAL;
2889                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2890                                 } else {
2891                                         /* copy in the chunks */
2892                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2893                                         sac->gauth_number_of_chunks = (uint32_t) size;
2894                                         *optsize = sizeof(struct sctp_authchunks) + size;
2895                                 }
2896                                 SCTP_TCB_UNLOCK(stcb);
2897                         } else {
2898                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2899                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2900                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2901                                         /* get off the endpoint */
2902                                         SCTP_INP_RLOCK(inp);
2903                                         chklist = inp->sctp_ep.local_auth_chunks;
2904                                         /* is there enough space? */
2905                                         size = sctp_auth_get_chklist_size(chklist);
2906                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2907                                                 error = EINVAL;
2908                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2909                                         } else {
2910                                                 /* copy in the chunks */
2911                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2912                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2913                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2914                                         }
2915                                         SCTP_INP_RUNLOCK(inp);
2916                                 } else {
2917                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2918                                         error = EINVAL;
2919                                 }
2920                         }
2921                         break;
2922                 }
2923         case SCTP_PEER_AUTH_CHUNKS:
2924                 {
2925                         struct sctp_authchunks *sac;
2926                         sctp_auth_chklist_t *chklist = NULL;
2927                         size_t size = 0;
2928
2929                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2930                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2931
2932                         if (stcb) {
2933                                 /* get off the assoc */
2934                                 chklist = stcb->asoc.peer_auth_chunks;
2935                                 /* is there enough space? */
2936                                 size = sctp_auth_get_chklist_size(chklist);
2937                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2938                                         error = EINVAL;
2939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2940                                 } else {
2941                                         /* copy in the chunks */
2942                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2943                                         sac->gauth_number_of_chunks = (uint32_t) size;
2944                                         *optsize = sizeof(struct sctp_authchunks) + size;
2945                                 }
2946                                 SCTP_TCB_UNLOCK(stcb);
2947                         } else {
2948                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2949                                 error = ENOENT;
2950                         }
2951                         break;
2952                 }
2953         case SCTP_EVENT:
2954                 {
2955                         struct sctp_event *event;
2956                         uint32_t event_type;
2957
2958                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2959                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2960
2961                         switch (event->se_type) {
2962                         case SCTP_ASSOC_CHANGE:
2963                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2964                                 break;
2965                         case SCTP_PEER_ADDR_CHANGE:
2966                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2967                                 break;
2968                         case SCTP_REMOTE_ERROR:
2969                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2970                                 break;
2971                         case SCTP_SEND_FAILED:
2972                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2973                                 break;
2974                         case SCTP_SHUTDOWN_EVENT:
2975                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2976                                 break;
2977                         case SCTP_ADAPTATION_INDICATION:
2978                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2979                                 break;
2980                         case SCTP_PARTIAL_DELIVERY_EVENT:
2981                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2982                                 break;
2983                         case SCTP_AUTHENTICATION_EVENT:
2984                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2985                                 break;
2986                         case SCTP_STREAM_RESET_EVENT:
2987                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2988                                 break;
2989                         case SCTP_SENDER_DRY_EVENT:
2990                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2991                                 break;
2992                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2993                                 event_type = 0;
2994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2995                                 error = ENOTSUP;
2996                                 break;
2997                         case SCTP_ASSOC_RESET_EVENT:
2998                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
2999                                 break;
3000                         case SCTP_STREAM_CHANGE_EVENT:
3001                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3002                                 break;
3003                         case SCTP_SEND_FAILED_EVENT:
3004                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3005                                 break;
3006                         default:
3007                                 event_type = 0;
3008                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3009                                 error = EINVAL;
3010                                 break;
3011                         }
3012                         if (event_type > 0) {
3013                                 if (stcb) {
3014                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3015                                         SCTP_TCB_UNLOCK(stcb);
3016                                 } else {
3017                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3018                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3019                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3020                                                 SCTP_INP_RLOCK(inp);
3021                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3022                                                 SCTP_INP_RUNLOCK(inp);
3023                                         } else {
3024                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3025                                                 error = EINVAL;
3026                                         }
3027                                 }
3028                         }
3029                         if (error == 0) {
3030                                 *optsize = sizeof(struct sctp_event);
3031                         }
3032                         break;
3033                 }
3034         case SCTP_RECVRCVINFO:
3035                 {
3036                         int onoff;
3037
3038                         if (*optsize < sizeof(int)) {
3039                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3040                                 error = EINVAL;
3041                         } else {
3042                                 SCTP_INP_RLOCK(inp);
3043                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3044                                 SCTP_INP_RUNLOCK(inp);
3045                         }
3046                         if (error == 0) {
3047                                 /* return the option value */
3048                                 *(int *)optval = onoff;
3049                                 *optsize = sizeof(int);
3050                         }
3051                         break;
3052                 }
3053         case SCTP_RECVNXTINFO:
3054                 {
3055                         int onoff;
3056
3057                         if (*optsize < sizeof(int)) {
3058                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3059                                 error = EINVAL;
3060                         } else {
3061                                 SCTP_INP_RLOCK(inp);
3062                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3063                                 SCTP_INP_RUNLOCK(inp);
3064                         }
3065                         if (error == 0) {
3066                                 /* return the option value */
3067                                 *(int *)optval = onoff;
3068                                 *optsize = sizeof(int);
3069                         }
3070                         break;
3071                 }
3072         case SCTP_DEFAULT_SNDINFO:
3073                 {
3074                         struct sctp_sndinfo *info;
3075
3076                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3077                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3078
3079                         if (stcb) {
3080                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3081                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3082                                 info->snd_flags &= 0xfff0;
3083                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3084                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3085                                 SCTP_TCB_UNLOCK(stcb);
3086                         } else {
3087                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3088                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3089                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3090                                         SCTP_INP_RLOCK(inp);
3091                                         info->snd_sid = inp->def_send.sinfo_stream;
3092                                         info->snd_flags = inp->def_send.sinfo_flags;
3093                                         info->snd_flags &= 0xfff0;
3094                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3095                                         info->snd_context = inp->def_send.sinfo_context;
3096                                         SCTP_INP_RUNLOCK(inp);
3097                                 } else {
3098                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                         error = EINVAL;
3100                                 }
3101                         }
3102                         if (error == 0) {
3103                                 *optsize = sizeof(struct sctp_sndinfo);
3104                         }
3105                         break;
3106                 }
3107         case SCTP_DEFAULT_PRINFO:
3108                 {
3109                         struct sctp_default_prinfo *info;
3110
3111                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3112                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3113
3114                         if (stcb) {
3115                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3116                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3117                                 SCTP_TCB_UNLOCK(stcb);
3118                         } else {
3119                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3120                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3121                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3122                                         SCTP_INP_RLOCK(inp);
3123                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3124                                         info->pr_value = inp->def_send.sinfo_timetolive;
3125                                         SCTP_INP_RUNLOCK(inp);
3126                                 } else {
3127                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3128                                         error = EINVAL;
3129                                 }
3130                         }
3131                         if (error == 0) {
3132                                 *optsize = sizeof(struct sctp_default_prinfo);
3133                         }
3134                         break;
3135                 }
3136         case SCTP_PEER_ADDR_THLDS:
3137                 {
3138                         struct sctp_paddrthlds *thlds;
3139                         struct sctp_nets *net;
3140
3141                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3142                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3143
3144                         net = NULL;
3145                         if (stcb) {
3146                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3147                         } else {
3148                                 /*
3149                                  * We increment here since
3150                                  * sctp_findassociation_ep_addr() wil do a
3151                                  * decrement if it finds the stcb as long as
3152                                  * the locked tcb (last argument) is NOT a
3153                                  * TCB.. aka NULL.
3154                                  */
3155                                 SCTP_INP_INCR_REF(inp);
3156                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3157                                 if (stcb == NULL) {
3158                                         SCTP_INP_DECR_REF(inp);
3159                                 }
3160                         }
3161                         if (stcb && (net == NULL)) {
3162                                 struct sockaddr *sa;
3163
3164                                 sa = (struct sockaddr *)&thlds->spt_address;
3165 #ifdef INET
3166                                 if (sa->sa_family == AF_INET) {
3167                                         struct sockaddr_in *sin;
3168
3169                                         sin = (struct sockaddr_in *)sa;
3170                                         if (sin->sin_addr.s_addr) {
3171                                                 error = EINVAL;
3172                                                 SCTP_TCB_UNLOCK(stcb);
3173                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3174                                                 break;
3175                                         }
3176                                 } else
3177 #endif
3178 #ifdef INET6
3179                                 if (sa->sa_family == AF_INET6) {
3180                                         struct sockaddr_in6 *sin6;
3181
3182                                         sin6 = (struct sockaddr_in6 *)sa;
3183                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3184                                                 error = EINVAL;
3185                                                 SCTP_TCB_UNLOCK(stcb);
3186                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3187                                                 break;
3188                                         }
3189                                 } else
3190 #endif
3191                                 {
3192                                         error = EAFNOSUPPORT;
3193                                         SCTP_TCB_UNLOCK(stcb);
3194                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3195                                         break;
3196                                 }
3197                         }
3198                         if (stcb) {
3199                                 if (net) {
3200                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3201                                         thlds->spt_pathpfthld = net->pf_threshold;
3202                                 } else {
3203                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3204                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3205                                 }
3206                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3207                                 SCTP_TCB_UNLOCK(stcb);
3208                         } else {
3209                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3210                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3211                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3212                                         /* Use endpoint defaults */
3213                                         SCTP_INP_RLOCK(inp);
3214                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3215                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3216                                         SCTP_INP_RUNLOCK(inp);
3217                                 } else {
3218                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3219                                         error = EINVAL;
3220                                 }
3221                         }
3222                         if (error == 0) {
3223                                 *optsize = sizeof(struct sctp_paddrthlds);
3224                         }
3225                         break;
3226                 }
3227         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3228                 {
3229                         struct sctp_udpencaps *encaps;
3230                         struct sctp_nets *net;
3231
3232                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3233                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3234
3235                         if (stcb) {
3236                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
3237                         } else {
3238                                 /*
3239                                  * We increment here since
3240                                  * sctp_findassociation_ep_addr() wil do a
3241                                  * decrement if it finds the stcb as long as
3242                                  * the locked tcb (last argument) is NOT a
3243                                  * TCB.. aka NULL.
3244                                  */
3245                                 net = NULL;
3246                                 SCTP_INP_INCR_REF(inp);
3247                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
3248                                 if (stcb == NULL) {
3249                                         SCTP_INP_DECR_REF(inp);
3250                                 }
3251                         }
3252                         if (stcb && (net == NULL)) {
3253                                 struct sockaddr *sa;
3254
3255                                 sa = (struct sockaddr *)&encaps->sue_address;
3256 #ifdef INET
3257                                 if (sa->sa_family == AF_INET) {
3258                                         struct sockaddr_in *sin;
3259
3260                                         sin = (struct sockaddr_in *)sa;
3261                                         if (sin->sin_addr.s_addr) {
3262                                                 error = EINVAL;
3263                                                 SCTP_TCB_UNLOCK(stcb);
3264                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3265                                                 break;
3266                                         }
3267                                 } else
3268 #endif
3269 #ifdef INET6
3270                                 if (sa->sa_family == AF_INET6) {
3271                                         struct sockaddr_in6 *sin6;
3272
3273                                         sin6 = (struct sockaddr_in6 *)sa;
3274                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3275                                                 error = EINVAL;
3276                                                 SCTP_TCB_UNLOCK(stcb);
3277                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3278                                                 break;
3279                                         }
3280                                 } else
3281 #endif
3282                                 {
3283                                         error = EAFNOSUPPORT;
3284                                         SCTP_TCB_UNLOCK(stcb);
3285                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3286                                         break;
3287                                 }
3288                         }
3289                         if (stcb) {
3290                                 if (net) {
3291                                         encaps->sue_port = net->port;
3292                                 } else {
3293                                         encaps->sue_port = stcb->asoc.port;
3294                                 }
3295                                 SCTP_TCB_UNLOCK(stcb);
3296                         } else {
3297                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3298                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3299                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3300                                         SCTP_INP_RLOCK(inp);
3301                                         encaps->sue_port = inp->sctp_ep.port;
3302                                         SCTP_INP_RUNLOCK(inp);
3303                                 } else {
3304                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3305                                         error = EINVAL;
3306                                 }
3307                         }
3308                         if (error == 0) {
3309                                 *optsize = sizeof(struct sctp_udpencaps);
3310                         }
3311                         break;
3312                 }
3313         case SCTP_ENABLE_STREAM_RESET:
3314                 {
3315                         struct sctp_assoc_value *av;
3316
3317                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3318                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3319
3320                         if (stcb) {
3321                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3322                                 SCTP_TCB_UNLOCK(stcb);
3323                         } else {
3324                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3325                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3326                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3327                                         SCTP_INP_RLOCK(inp);
3328                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3329                                         SCTP_INP_RUNLOCK(inp);
3330                                 } else {
3331                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3332                                         error = EINVAL;
3333                                 }
3334                         }
3335                         if (error == 0) {
3336                                 *optsize = sizeof(struct sctp_assoc_value);
3337                         }
3338                         break;
3339                 }
3340         default:
3341                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3342                 error = ENOPROTOOPT;
3343                 break;
3344         }                       /* end switch (sopt->sopt_name) */
3345         if (error) {
3346                 *optsize = 0;
3347         }
3348         return (error);
3349 }
3350
3351 static int
3352 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3353     void *p)
3354 {
3355         int error, set_opt;
3356         uint32_t *mopt;
3357         struct sctp_tcb *stcb = NULL;
3358         struct sctp_inpcb *inp = NULL;
3359         uint32_t vrf_id;
3360
3361         if (optval == NULL) {
3362                 SCTP_PRINTF("optval is NULL\n");
3363                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3364                 return (EINVAL);
3365         }
3366         inp = (struct sctp_inpcb *)so->so_pcb;
3367         if (inp == NULL) {
3368                 SCTP_PRINTF("inp is NULL?\n");
3369                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3370                 return (EINVAL);
3371         }
3372         vrf_id = inp->def_vrf_id;
3373
3374         error = 0;
3375         switch (optname) {
3376         case SCTP_NODELAY:
3377         case SCTP_AUTOCLOSE:
3378         case SCTP_AUTO_ASCONF:
3379         case SCTP_EXPLICIT_EOR:
3380         case SCTP_DISABLE_FRAGMENTS:
3381         case SCTP_USE_EXT_RCVINFO:
3382         case SCTP_I_WANT_MAPPED_V4_ADDR:
3383                 /* copy in the option value */
3384                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3385                 set_opt = 0;
3386                 if (error)
3387                         break;
3388                 switch (optname) {
3389                 case SCTP_DISABLE_FRAGMENTS:
3390                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3391                         break;
3392                 case SCTP_AUTO_ASCONF:
3393                         /*
3394                          * NOTE: we don't really support this flag
3395                          */
3396                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3397                                 /* only valid for bound all sockets */
3398                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3399                                     (*mopt != 0)) {
3400                                         /* forbidden by admin */
3401                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3402                                         return (EPERM);
3403                                 }
3404                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3405                         } else {
3406                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3407                                 return (EINVAL);
3408                         }
3409                         break;
3410                 case SCTP_EXPLICIT_EOR:
3411                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3412                         break;
3413                 case SCTP_USE_EXT_RCVINFO:
3414                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3415                         break;
3416                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3417                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3418                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3419                         } else {
3420                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3421                                 return (EINVAL);
3422                         }
3423                         break;
3424                 case SCTP_NODELAY:
3425                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3426                         break;
3427                 case SCTP_AUTOCLOSE:
3428                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3429                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3430                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3431                                 return (EINVAL);
3432                         }
3433                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3434                         /*
3435                          * The value is in ticks. Note this does not effect
3436                          * old associations, only new ones.
3437                          */
3438                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3439                         break;
3440                 }
3441                 SCTP_INP_WLOCK(inp);
3442                 if (*mopt != 0) {
3443                         sctp_feature_on(inp, set_opt);
3444                 } else {
3445                         sctp_feature_off(inp, set_opt);
3446                 }
3447                 SCTP_INP_WUNLOCK(inp);
3448                 break;
3449         case SCTP_REUSE_PORT:
3450                 {
3451                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3452                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3453                                 /* Can't set it after we are bound */
3454                                 error = EINVAL;
3455                                 break;
3456                         }
3457                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3458                                 /* Can't do this for a 1-m socket */
3459                                 error = EINVAL;
3460                                 break;
3461                         }
3462                         if (optval)
3463                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3464                         else
3465                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3466                         break;
3467                 }
3468         case SCTP_PARTIAL_DELIVERY_POINT:
3469                 {
3470                         uint32_t *value;
3471
3472                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3473                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3474                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3475                                 error = EINVAL;
3476                                 break;
3477                         }
3478                         inp->partial_delivery_point = *value;
3479                         break;
3480                 }
3481         case SCTP_FRAGMENT_INTERLEAVE:
3482                 /* not yet until we re-write sctp_recvmsg() */
3483                 {
3484                         uint32_t *level;
3485
3486                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3487                         if (*level == SCTP_FRAG_LEVEL_2) {
3488                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3489                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3490                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3491                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3492                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3493                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3494                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3495                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3496
3497                         } else {
3498                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3499                                 error = EINVAL;
3500                         }
3501                         break;
3502                 }
3503         case SCTP_CMT_ON_OFF:
3504                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3505                         struct sctp_assoc_value *av;
3506
3507                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3508                         if (av->assoc_value > SCTP_CMT_MAX) {
3509                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3510                                 error = EINVAL;
3511                                 break;
3512                         }
3513                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3514                         if (stcb) {
3515                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3516                                 SCTP_TCB_UNLOCK(stcb);
3517                         } else {
3518                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3519                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3520                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3521                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3522                                         SCTP_INP_WLOCK(inp);
3523                                         inp->sctp_cmt_on_off = av->assoc_value;
3524                                         SCTP_INP_WUNLOCK(inp);
3525                                 }
3526                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3527                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3528                                         SCTP_INP_RLOCK(inp);
3529                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3530                                                 SCTP_TCB_LOCK(stcb);
3531                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3532                                                 SCTP_TCB_UNLOCK(stcb);
3533                                         }
3534                                         SCTP_INP_RUNLOCK(inp);
3535                                 }
3536                         }
3537                 } else {
3538                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3539                         error = ENOPROTOOPT;
3540                 }
3541                 break;
3542         case SCTP_PLUGGABLE_CC:
3543                 {
3544                         struct sctp_assoc_value *av;
3545                         struct sctp_nets *net;
3546
3547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3548                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3549                             (av->assoc_value != SCTP_CC_HSTCP) &&
3550                             (av->assoc_value != SCTP_CC_HTCP) &&
3551                             (av->assoc_value != SCTP_CC_RTCC)) {
3552                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3553                                 error = EINVAL;
3554                                 break;
3555                         }
3556                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3557                         if (stcb) {
3558                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3559                                 stcb->asoc.congestion_control_module = av->assoc_value;
3560                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3561                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3562                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3563                                         }
3564                                 }
3565                                 SCTP_TCB_UNLOCK(stcb);
3566                         } else {
3567                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3568                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3569                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3570                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3571                                         SCTP_INP_WLOCK(inp);
3572                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3573                                         SCTP_INP_WUNLOCK(inp);
3574                                 }
3575                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3576                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3577                                         SCTP_INP_RLOCK(inp);
3578                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3579                                                 SCTP_TCB_LOCK(stcb);
3580                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3581                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3582                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3583                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3584                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3585                                                         }
3586                                                 }
3587                                                 SCTP_TCB_UNLOCK(stcb);
3588                                         }
3589                                         SCTP_INP_RUNLOCK(inp);
3590                                 }
3591                         }
3592                         break;
3593                 }
3594         case SCTP_CC_OPTION:
3595                 {
3596                         struct sctp_cc_option *cc_opt;
3597
3598                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3599                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3600                         if (stcb == NULL) {
3601                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3602                                         SCTP_INP_RLOCK(inp);
3603                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3604                                                 SCTP_TCB_LOCK(stcb);
3605                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3606                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3607                                                 }
3608                                                 SCTP_TCB_UNLOCK(stcb);
3609                                         }
3610                                         SCTP_INP_RUNLOCK(inp);
3611                                 } else {
3612                                         error = EINVAL;
3613                                 }
3614                         } else {
3615                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3616                                         error = ENOTSUP;
3617                                 } else {
3618                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3619                                             cc_opt);
3620                                 }
3621                                 SCTP_TCB_UNLOCK(stcb);
3622                         }
3623                         break;
3624                 }
3625         case SCTP_PLUGGABLE_SS:
3626                 {
3627                         struct sctp_assoc_value *av;
3628
3629                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3630                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3631                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3632                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3633                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3634                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3635                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3637                                 error = EINVAL;
3638                                 break;
3639                         }
3640                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3641                         if (stcb) {
3642                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3643                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3644                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3645                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3646                                 SCTP_TCB_UNLOCK(stcb);
3647                         } else {
3648                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3649                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3650                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3651                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3652                                         SCTP_INP_WLOCK(inp);
3653                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3654                                         SCTP_INP_WUNLOCK(inp);
3655                                 }
3656                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3657                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3658                                         SCTP_INP_RLOCK(inp);
3659                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3660                                                 SCTP_TCB_LOCK(stcb);
3661                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3662                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3663                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3664                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3665                                                 SCTP_TCB_UNLOCK(stcb);
3666                                         }
3667                                         SCTP_INP_RUNLOCK(inp);
3668                                 }
3669                         }
3670                         break;
3671                 }
3672         case SCTP_SS_VALUE:
3673                 {
3674                         struct sctp_stream_value *av;
3675
3676                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3677                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3678                         if (stcb) {
3679                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
3680                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3681                                     av->stream_value) < 0)) {
3682                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3683                                         error = EINVAL;
3684                                 }
3685                                 SCTP_TCB_UNLOCK(stcb);
3686                         } else {
3687                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3688                                         SCTP_INP_RLOCK(inp);
3689                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3690                                                 SCTP_TCB_LOCK(stcb);
3691                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
3692                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3693                                                             &stcb->asoc,
3694                                                             &stcb->asoc.strmout[av->stream_id],
3695                                                             av->stream_value);
3696                                                 }
3697                                                 SCTP_TCB_UNLOCK(stcb);
3698                                         }
3699                                         SCTP_INP_RUNLOCK(inp);
3700
3701                                 } else {
3702                                         /*
3703                                          * Can't set stream value without
3704                                          * association
3705                                          */
3706                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3707                                         error = EINVAL;
3708                                 }
3709                         }
3710                         break;
3711                 }
3712         case SCTP_CLR_STAT_LOG:
3713                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3714                 error = EOPNOTSUPP;
3715                 break;
3716         case SCTP_CONTEXT:
3717                 {
3718                         struct sctp_assoc_value *av;
3719
3720                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3721                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3722
3723                         if (stcb) {
3724                                 stcb->asoc.context = av->assoc_value;
3725                                 SCTP_TCB_UNLOCK(stcb);
3726                         } else {
3727                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3728                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3729                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3730                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3731                                         SCTP_INP_WLOCK(inp);
3732                                         inp->sctp_context = av->assoc_value;
3733                                         SCTP_INP_WUNLOCK(inp);
3734                                 }
3735                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3736                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3737                                         SCTP_INP_RLOCK(inp);
3738                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3739                                                 SCTP_TCB_LOCK(stcb);
3740                                                 stcb->asoc.context = av->assoc_value;
3741                                                 SCTP_TCB_UNLOCK(stcb);
3742                                         }
3743                                         SCTP_INP_RUNLOCK(inp);
3744                                 }
3745                         }
3746                         break;
3747                 }
3748         case SCTP_VRF_ID:
3749                 {
3750                         uint32_t *default_vrfid;
3751
3752                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3753                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3755                                 error = EINVAL;
3756                                 break;
3757                         }
3758                         inp->def_vrf_id = *default_vrfid;
3759                         break;
3760                 }
3761         case SCTP_DEL_VRF_ID:
3762                 {
3763                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3764                         error = EOPNOTSUPP;
3765                         break;
3766                 }
3767         case SCTP_ADD_VRF_ID:
3768                 {
3769                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3770                         error = EOPNOTSUPP;
3771                         break;
3772                 }
3773         case SCTP_DELAYED_SACK:
3774                 {
3775                         struct sctp_sack_info *sack;
3776
3777                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3778                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3779                         if (sack->sack_delay) {
3780                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3781                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3782                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3783                                         sack->sack_delay = TICKS_TO_MSEC(1);
3784                                 }
3785                         }
3786                         if (stcb) {
3787                                 if (sack->sack_delay) {
3788                                         stcb->asoc.delayed_ack = sack->sack_delay;
3789                                 }
3790                                 if (sack->sack_freq) {
3791                                         stcb->asoc.sack_freq = sack->sack_freq;
3792                                 }
3793                                 SCTP_TCB_UNLOCK(stcb);
3794                         } else {
3795                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3796                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3797                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3798                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3799                                         SCTP_INP_WLOCK(inp);
3800                                         if (sack->sack_delay) {
3801                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3802                                         }
3803                                         if (sack->sack_freq) {
3804                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3805                                         }
3806                                         SCTP_INP_WUNLOCK(inp);
3807                                 }
3808                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3809                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3810                                         SCTP_INP_RLOCK(inp);
3811                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3812                                                 SCTP_TCB_LOCK(stcb);
3813                                                 if (sack->sack_delay) {
3814                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3815                                                 }
3816                                                 if (sack->sack_freq) {
3817                                                         stcb->asoc.sack_freq = sack->sack_freq;
3818                                                 }
3819                                                 SCTP_TCB_UNLOCK(stcb);
3820                                         }
3821                                         SCTP_INP_RUNLOCK(inp);
3822                                 }
3823                         }
3824                         break;
3825                 }
3826         case SCTP_AUTH_CHUNK:
3827                 {
3828                         struct sctp_authchunk *sauth;
3829
3830                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3831
3832                         SCTP_INP_WLOCK(inp);
3833                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3834                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3835                                 error = EINVAL;
3836                         }
3837                         SCTP_INP_WUNLOCK(inp);
3838                         break;
3839                 }
3840         case SCTP_AUTH_KEY:
3841                 {
3842                         struct sctp_authkey *sca;
3843                         struct sctp_keyhead *shared_keys;
3844                         sctp_sharedkey_t *shared_key;
3845                         sctp_key_t *key = NULL;
3846                         size_t size;
3847
3848                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3849                         if (sca->sca_keylength == 0) {
3850                                 size = optsize - sizeof(struct sctp_authkey);
3851                         } else {
3852                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3853                                         size = sca->sca_keylength;
3854                                 } else {
3855                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3856                                         error = EINVAL;
3857                                         break;
3858                                 }
3859                         }
3860                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3861
3862                         if (stcb) {
3863                                 shared_keys = &stcb->asoc.shared_keys;
3864                                 /* clear the cached keys for this key id */
3865                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3866                                 /*
3867                                  * create the new shared key and
3868                                  * insert/replace it
3869                                  */
3870                                 if (size > 0) {
3871                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3872                                         if (key == NULL) {
3873                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3874                                                 error = ENOMEM;
3875                                                 SCTP_TCB_UNLOCK(stcb);
3876                                                 break;
3877                                         }
3878                                 }
3879                                 shared_key = sctp_alloc_sharedkey();
3880                                 if (shared_key == NULL) {
3881                                         sctp_free_key(key);
3882                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3883                                         error = ENOMEM;
3884                                         SCTP_TCB_UNLOCK(stcb);
3885                                         break;
3886                                 }
3887                                 shared_key->key = key;
3888                                 shared_key->keyid = sca->sca_keynumber;
3889                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3890                                 SCTP_TCB_UNLOCK(stcb);
3891                         } else {
3892                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3893                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3894                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3895                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3896                                         SCTP_INP_WLOCK(inp);
3897                                         shared_keys = &inp->sctp_ep.shared_keys;
3898                                         /*
3899                                          * clear the cached keys on all
3900                                          * assocs for this key id
3901                                          */
3902                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3903                                         /*
3904                                          * create the new shared key and
3905                                          * insert/replace it
3906                                          */
3907                                         if (size > 0) {
3908                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3909                                                 if (key == NULL) {
3910                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3911                                                         error = ENOMEM;
3912                                                         SCTP_INP_WUNLOCK(inp);
3913                                                         break;
3914                                                 }
3915                                         }
3916                                         shared_key = sctp_alloc_sharedkey();
3917                                         if (shared_key == NULL) {
3918                                                 sctp_free_key(key);
3919                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3920                                                 error = ENOMEM;
3921                                                 SCTP_INP_WUNLOCK(inp);
3922                                                 break;
3923                                         }
3924                                         shared_key->key = key;
3925                                         shared_key->keyid = sca->sca_keynumber;
3926                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3927                                         SCTP_INP_WUNLOCK(inp);
3928                                 }
3929                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3930                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3931                                         SCTP_INP_RLOCK(inp);
3932                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3933                                                 SCTP_TCB_LOCK(stcb);
3934                                                 shared_keys = &stcb->asoc.shared_keys;
3935                                                 /*
3936                                                  * clear the cached keys for
3937                                                  * this key id
3938                                                  */
3939                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3940                                                 /*
3941                                                  * create the new shared key
3942                                                  * and insert/replace it
3943                                                  */
3944                                                 if (size > 0) {
3945                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3946                                                         if (key == NULL) {
3947                                                                 SCTP_TCB_UNLOCK(stcb);
3948                                                                 continue;
3949                                                         }
3950                                                 }
3951                                                 shared_key = sctp_alloc_sharedkey();
3952                                                 if (shared_key == NULL) {
3953                                                         sctp_free_key(key);
3954                                                         SCTP_TCB_UNLOCK(stcb);
3955                                                         continue;
3956                                                 }
3957                                                 shared_key->key = key;
3958                                                 shared_key->keyid = sca->sca_keynumber;
3959                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3960                                                 SCTP_TCB_UNLOCK(stcb);
3961                                         }
3962                                         SCTP_INP_RUNLOCK(inp);
3963                                 }
3964                         }
3965                         break;
3966                 }
3967         case SCTP_HMAC_IDENT:
3968                 {
3969                         struct sctp_hmacalgo *shmac;
3970                         sctp_hmaclist_t *hmaclist;
3971                         uint16_t hmacid;
3972                         uint32_t i;
3973
3974                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3975                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3976                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3977                                 error = EINVAL;
3978                                 break;
3979                         }
3980                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3981                         if (hmaclist == NULL) {
3982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3983                                 error = ENOMEM;
3984                                 break;
3985                         }
3986                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3987                                 hmacid = shmac->shmac_idents[i];
3988                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3989                                          /* invalid HMACs were found */ ;
3990                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3991                                         error = EINVAL;
3992                                         sctp_free_hmaclist(hmaclist);
3993                                         goto sctp_set_hmac_done;
3994                                 }
3995                         }
3996                         for (i = 0; i < hmaclist->num_algo; i++) {
3997                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3998                                         /* already in list */
3999                                         break;
4000                                 }
4001                         }
4002                         if (i == hmaclist->num_algo) {
4003                                 /* not found in list */
4004                                 sctp_free_hmaclist(hmaclist);
4005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4006                                 error = EINVAL;
4007                                 break;
4008                         }
4009                         /* set it on the endpoint */
4010                         SCTP_INP_WLOCK(inp);
4011                         if (inp->sctp_ep.local_hmacs)
4012                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4013                         inp->sctp_ep.local_hmacs = hmaclist;
4014                         SCTP_INP_WUNLOCK(inp);
4015         sctp_set_hmac_done:
4016                         break;
4017                 }
4018         case SCTP_AUTH_ACTIVE_KEY:
4019                 {
4020                         struct sctp_authkeyid *scact;
4021
4022                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4023                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4024
4025                         /* set the active key on the right place */
4026                         if (stcb) {
4027                                 /* set the active key on the assoc */
4028                                 if (sctp_auth_setactivekey(stcb,
4029                                     scact->scact_keynumber)) {
4030                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4031                                             SCTP_FROM_SCTP_USRREQ,
4032                                             EINVAL);
4033                                         error = EINVAL;
4034                                 }
4035                                 SCTP_TCB_UNLOCK(stcb);
4036                         } else {
4037                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4038                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4039                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4040                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4041                                         SCTP_INP_WLOCK(inp);
4042                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4043                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4044                                                 error = EINVAL;
4045                                         }
4046                                         SCTP_INP_WUNLOCK(inp);
4047                                 }
4048                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4049                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4050                                         SCTP_INP_RLOCK(inp);
4051                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4052                                                 SCTP_TCB_LOCK(stcb);
4053                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4054                                                 SCTP_TCB_UNLOCK(stcb);
4055                                         }
4056                                         SCTP_INP_RUNLOCK(inp);
4057                                 }
4058                         }
4059                         break;
4060                 }
4061         case SCTP_AUTH_DELETE_KEY:
4062                 {
4063                         struct sctp_authkeyid *scdel;
4064
4065                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4066                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4067
4068                         /* delete the key from the right place */
4069                         if (stcb) {
4070                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4071                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4072                                         error = EINVAL;
4073                                 }
4074                                 SCTP_TCB_UNLOCK(stcb);
4075                         } else {
4076                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4077                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4078                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4079                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4080                                         SCTP_INP_WLOCK(inp);
4081                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4082                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4083                                                 error = EINVAL;
4084                                         }
4085                                         SCTP_INP_WUNLOCK(inp);
4086                                 }
4087                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4088                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4089                                         SCTP_INP_RLOCK(inp);
4090                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4091                                                 SCTP_TCB_LOCK(stcb);
4092                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4093                                                 SCTP_TCB_UNLOCK(stcb);
4094                                         }
4095                                         SCTP_INP_RUNLOCK(inp);
4096                                 }
4097                         }
4098                         break;
4099                 }
4100         case SCTP_AUTH_DEACTIVATE_KEY:
4101                 {
4102                         struct sctp_authkeyid *keyid;
4103
4104                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4105                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4106
4107                         /* deactivate the key from the right place */
4108                         if (stcb) {
4109                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4110                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4111                                         error = EINVAL;
4112                                 }
4113                                 SCTP_TCB_UNLOCK(stcb);
4114                         } else {
4115                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4116                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4117                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4118                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4119                                         SCTP_INP_WLOCK(inp);
4120                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4121                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4122                                                 error = EINVAL;
4123                                         }
4124                                         SCTP_INP_WUNLOCK(inp);
4125                                 }
4126                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4127                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4128                                         SCTP_INP_RLOCK(inp);
4129                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4130                                                 SCTP_TCB_LOCK(stcb);
4131                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4132                                                 SCTP_TCB_UNLOCK(stcb);
4133                                         }
4134                                         SCTP_INP_RUNLOCK(inp);
4135                                 }
4136                         }
4137                         break;
4138                 }
4139         case SCTP_ENABLE_STREAM_RESET:
4140                 {
4141                         struct sctp_assoc_value *av;
4142
4143                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4144                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4145                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4146                                 error = EINVAL;
4147                                 break;
4148                         }
4149                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4150                         if (stcb) {
4151                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4152                                 SCTP_TCB_UNLOCK(stcb);
4153                         } else {
4154                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4155                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4156                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4157                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4158                                         SCTP_INP_WLOCK(inp);
4159                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4160                                         SCTP_INP_WUNLOCK(inp);
4161                                 }
4162                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4163                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4164                                         SCTP_INP_RLOCK(inp);
4165                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4166                                                 SCTP_TCB_LOCK(stcb);
4167                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4168                                                 SCTP_TCB_UNLOCK(stcb);
4169                                         }
4170                                         SCTP_INP_RUNLOCK(inp);
4171                                 }
4172                         }
4173                         break;
4174                 }
4175         case SCTP_RESET_STREAMS:
4176                 {
4177                         struct sctp_reset_streams *strrst;
4178                         int i, send_out = 0;
4179                         int send_in = 0;
4180
4181                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4182                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4183                         if (stcb == NULL) {
4184                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4185                                 error = ENOENT;
4186                                 break;
4187                         }
4188                         if (stcb->asoc.peer_supports_strreset == 0) {
4189                                 /*
4190                                  * Peer does not support the chunk type.
4191                                  */
4192                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4193                                 error = EOPNOTSUPP;
4194                                 SCTP_TCB_UNLOCK(stcb);
4195                                 break;
4196                         }
4197                         if (stcb->asoc.stream_reset_outstanding) {
4198                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4199                                 error = EALREADY;
4200                                 SCTP_TCB_UNLOCK(stcb);
4201                                 break;
4202                         }
4203                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4204                                 send_in = 1;
4205                         }
4206                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4207                                 send_out = 1;
4208                         }
4209                         if ((send_in == 0) && (send_out == 0)) {
4210                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4211                                 error = EINVAL;
4212                                 SCTP_TCB_UNLOCK(stcb);
4213                                 break;
4214                         }
4215                         for (i = 0; i < strrst->srs_number_streams; i++) {
4216                                 if ((send_in) &&
4217                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4218                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4219                                         error = EINVAL;
4220                                         break;
4221                                 }
4222                                 if ((send_out) &&
4223                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4224                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4225                                         error = EINVAL;
4226                                         break;
4227                                 }
4228                         }
4229                         if (error) {
4230                                 SCTP_TCB_UNLOCK(stcb);
4231                                 break;
4232                         }
4233                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4234                             strrst->srs_stream_list,
4235                             send_out, send_in, 0, 0, 0, 0, 0);
4236
4237                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4238                         SCTP_TCB_UNLOCK(stcb);
4239                         break;
4240                 }
4241         case SCTP_ADD_STREAMS:
4242                 {
4243                         struct sctp_add_streams *stradd;
4244                         uint8_t addstream = 0;
4245                         uint16_t add_o_strmcnt = 0;
4246                         uint16_t add_i_strmcnt = 0;
4247
4248                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4249                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4250                         if (stcb == NULL) {
4251                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4252                                 error = ENOENT;
4253                                 break;
4254                         }
4255                         if (stcb->asoc.peer_supports_strreset == 0) {
4256                                 /*
4257                                  * Peer does not support the chunk type.
4258                                  */
4259                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4260                                 error = EOPNOTSUPP;
4261                                 SCTP_TCB_UNLOCK(stcb);
4262                                 break;
4263                         }
4264                         if (stcb->asoc.stream_reset_outstanding) {
4265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4266                                 error = EALREADY;
4267                                 SCTP_TCB_UNLOCK(stcb);
4268                                 break;
4269                         }
4270                         if ((stradd->sas_outstrms == 0) &&
4271                             (stradd->sas_instrms == 0)) {
4272                                 error = EINVAL;
4273                                 goto skip_stuff;
4274                         }
4275                         if (stradd->sas_outstrms) {
4276                                 addstream = 1;
4277                                 /* We allocate here */
4278                                 add_o_strmcnt = stradd->sas_outstrms;
4279                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4280                                         /* You can't have more than 64k */
4281                                         error = EINVAL;
4282                                         goto skip_stuff;
4283                                 }
4284                         }
4285                         if (stradd->sas_instrms) {
4286                                 int cnt;
4287
4288                                 addstream |= 2;
4289                                 /*
4290                                  * We allocate inside
4291                                  * sctp_send_str_reset_req()
4292                                  */
4293                                 add_i_strmcnt = stradd->sas_instrms;
4294                                 cnt = add_i_strmcnt;
4295                                 cnt += stcb->asoc.streamincnt;
4296                                 if (cnt > 0x0000ffff) {
4297                                         /* You can't have more than 64k */
4298                                         error = EINVAL;
4299                                         goto skip_stuff;
4300                                 }
4301                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4302                                         /* More than you are allowed */
4303                                         error = EINVAL;
4304                                         goto skip_stuff;
4305                                 }
4306                         }
4307                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4308                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4309         skip_stuff:
4310                         SCTP_TCB_UNLOCK(stcb);
4311                         break;
4312                 }
4313         case SCTP_RESET_ASSOC:
4314                 {
4315                         uint32_t *value;
4316
4317                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4318                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4319                         if (stcb == NULL) {
4320                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4321                                 error = ENOENT;
4322                                 break;
4323                         }
4324                         if (stcb->asoc.peer_supports_strreset == 0) {
4325                                 /*
4326                                  * Peer does not support the chunk type.
4327                                  */
4328                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4329                                 error = EOPNOTSUPP;
4330                                 SCTP_TCB_UNLOCK(stcb);
4331                                 break;
4332                         }
4333                         if (stcb->asoc.stream_reset_outstanding) {
4334                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4335                                 error = EALREADY;
4336                                 SCTP_TCB_UNLOCK(stcb);
4337                                 break;
4338                         }
4339                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4340                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4341                         SCTP_TCB_UNLOCK(stcb);
4342                         break;
4343                 }
4344         case SCTP_CONNECT_X:
4345                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4346                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4347                         error = EINVAL;
4348                         break;
4349                 }
4350                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4351                 break;
4352         case SCTP_CONNECT_X_DELAYED:
4353                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4354                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4355                         error = EINVAL;
4356                         break;
4357                 }
4358                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4359                 break;
4360         case SCTP_CONNECT_X_COMPLETE:
4361                 {
4362                         struct sockaddr *sa;
4363                         struct sctp_nets *net;
4364
4365                         /* FIXME MT: check correct? */
4366                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4367
4368                         /* find tcb */
4369                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4370                                 SCTP_INP_RLOCK(inp);
4371                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4372                                 if (stcb) {
4373                                         SCTP_TCB_LOCK(stcb);
4374                                         net = sctp_findnet(stcb, sa);
4375                                 }
4376                                 SCTP_INP_RUNLOCK(inp);
4377                         } else {
4378                                 /*
4379                                  * We increment here since
4380                                  * sctp_findassociation_ep_addr() wil do a
4381                                  * decrement if it finds the stcb as long as
4382                                  * the locked tcb (last argument) is NOT a
4383                                  * TCB.. aka NULL.
4384                                  */
4385                                 SCTP_INP_INCR_REF(inp);
4386                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4387                                 if (stcb == NULL) {
4388                                         SCTP_INP_DECR_REF(inp);
4389                                 }
4390                         }
4391
4392                         if (stcb == NULL) {
4393                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4394                                 error = ENOENT;
4395                                 break;
4396                         }
4397                         if (stcb->asoc.delayed_connection == 1) {
4398                                 stcb->asoc.delayed_connection = 0;
4399                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4400                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4401                                     stcb->asoc.primary_destination,
4402                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4403                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4404                         } else {
4405                                 /*
4406                                  * already expired or did not use delayed
4407                                  * connectx
4408                                  */
4409                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4410                                 error = EALREADY;
4411                         }
4412                         SCTP_TCB_UNLOCK(stcb);
4413                         break;
4414                 }
4415         case SCTP_MAX_BURST:
4416                 {
4417                         struct sctp_assoc_value *av;
4418
4419                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4420                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4421
4422                         if (stcb) {
4423                                 stcb->asoc.max_burst = av->assoc_value;
4424                                 SCTP_TCB_UNLOCK(stcb);
4425                         } else {
4426                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4427                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4428                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4429                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4430                                         SCTP_INP_WLOCK(inp);
4431                                         inp->sctp_ep.max_burst = av->assoc_value;
4432                                         SCTP_INP_WUNLOCK(inp);
4433                                 }
4434                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4435                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4436                                         SCTP_INP_RLOCK(inp);
4437                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4438                                                 SCTP_TCB_LOCK(stcb);
4439                                                 stcb->asoc.max_burst = av->assoc_value;
4440                                                 SCTP_TCB_UNLOCK(stcb);
4441                                         }
4442                                         SCTP_INP_RUNLOCK(inp);
4443                                 }
4444                         }
4445                         break;
4446                 }
4447         case SCTP_MAXSEG:
4448                 {
4449                         struct sctp_assoc_value *av;
4450                         int ovh;
4451
4452                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4453                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4454
4455                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4456                                 ovh = SCTP_MED_OVERHEAD;
4457                         } else {
4458                                 ovh = SCTP_MED_V4_OVERHEAD;
4459                         }
4460                         if (stcb) {
4461                                 if (av->assoc_value) {
4462                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4463                                 } else {
4464                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4465                                 }
4466                                 SCTP_TCB_UNLOCK(stcb);
4467                         } else {
4468                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4469                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4470                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4471                                         SCTP_INP_WLOCK(inp);
4472                                         /*
4473                                          * FIXME MT: I think this is not in
4474                                          * tune with the API ID
4475                                          */
4476                                         if (av->assoc_value) {
4477                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4478                                         } else {
4479                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4480                                         }
4481                                         SCTP_INP_WUNLOCK(inp);
4482                                 } else {
4483                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4484                                         error = EINVAL;
4485                                 }
4486                         }
4487                         break;
4488                 }
4489         case SCTP_EVENTS:
4490                 {
4491                         struct sctp_event_subscribe *events;
4492
4493                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4494
4495                         SCTP_INP_WLOCK(inp);
4496                         if (events->sctp_data_io_event) {
4497                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4498                         } else {
4499                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4500                         }
4501
4502                         if (events->sctp_association_event) {
4503                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4504                         } else {
4505                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4506                         }
4507
4508                         if (events->sctp_address_event) {
4509                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4510                         } else {
4511                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4512                         }
4513
4514                         if (events->sctp_send_failure_event) {
4515                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4516                         } else {
4517                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4518                         }
4519
4520                         if (events->sctp_peer_error_event) {
4521                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4522                         } else {
4523                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4524                         }
4525
4526                         if (events->sctp_shutdown_event) {
4527                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4528                         } else {
4529                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4530                         }
4531
4532                         if (events->sctp_partial_delivery_event) {
4533                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4534                         } else {
4535                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4536                         }
4537
4538                         if (events->sctp_adaptation_layer_event) {
4539                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4540                         } else {
4541                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4542                         }
4543
4544                         if (events->sctp_authentication_event) {
4545                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4546                         } else {
4547                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4548                         }
4549
4550                         if (events->sctp_sender_dry_event) {
4551                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4552                         } else {
4553                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4554                         }
4555
4556                         if (events->sctp_stream_reset_event) {
4557                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4558                         } else {
4559                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4560                         }
4561                         SCTP_INP_WUNLOCK(inp);
4562
4563                         SCTP_INP_RLOCK(inp);
4564                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4565                                 SCTP_TCB_LOCK(stcb);
4566                                 if (events->sctp_association_event) {
4567                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4568                                 } else {
4569                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4570                                 }
4571                                 if (events->sctp_address_event) {
4572                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4573                                 } else {
4574                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4575                                 }
4576                                 if (events->sctp_send_failure_event) {
4577                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4578                                 } else {
4579                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4580                                 }
4581                                 if (events->sctp_peer_error_event) {
4582                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4583                                 } else {
4584                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4585                                 }
4586                                 if (events->sctp_shutdown_event) {
4587                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4588                                 } else {
4589                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4590                                 }
4591                                 if (events->sctp_partial_delivery_event) {
4592                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4593                                 } else {
4594                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4595                                 }
4596                                 if (events->sctp_adaptation_layer_event) {
4597                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4598                                 } else {
4599                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4600                                 }
4601                                 if (events->sctp_authentication_event) {
4602                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4603                                 } else {
4604                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4605                                 }
4606                                 if (events->sctp_sender_dry_event) {
4607                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4608                                 } else {
4609                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4610                                 }
4611                                 if (events->sctp_stream_reset_event) {
4612                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4613                                 } else {
4614                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4615                                 }
4616                                 SCTP_TCB_UNLOCK(stcb);
4617                         }
4618                         /*
4619                          * Send up the sender dry event only for 1-to-1
4620                          * style sockets.
4621                          */
4622                         if (events->sctp_sender_dry_event) {
4623                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4624                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4625                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4626                                         if (stcb) {
4627                                                 SCTP_TCB_LOCK(stcb);
4628                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4629                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4630                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4631                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4632                                                 }
4633                                                 SCTP_TCB_UNLOCK(stcb);
4634                                         }
4635                                 }
4636                         }
4637                         SCTP_INP_RUNLOCK(inp);
4638                         break;
4639                 }
4640         case SCTP_ADAPTATION_LAYER:
4641                 {
4642                         struct sctp_setadaptation *adap_bits;
4643
4644                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4645                         SCTP_INP_WLOCK(inp);
4646                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4647                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
4648                         SCTP_INP_WUNLOCK(inp);
4649                         break;
4650                 }
4651 #ifdef SCTP_DEBUG
4652         case SCTP_SET_INITIAL_DBG_SEQ:
4653                 {
4654                         uint32_t *vvv;
4655
4656                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4657                         SCTP_INP_WLOCK(inp);
4658                         inp->sctp_ep.initial_sequence_debug = *vvv;
4659                         SCTP_INP_WUNLOCK(inp);
4660                         break;
4661                 }
4662 #endif
4663         case SCTP_DEFAULT_SEND_PARAM:
4664                 {
4665                         struct sctp_sndrcvinfo *s_info;
4666
4667                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4668                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4669
4670                         if (stcb) {
4671                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4672                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4673                                 } else {
4674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4675                                         error = EINVAL;
4676                                 }
4677                                 SCTP_TCB_UNLOCK(stcb);
4678                         } else {
4679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4681                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4682                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4683                                         SCTP_INP_WLOCK(inp);
4684                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4685                                         SCTP_INP_WUNLOCK(inp);
4686                                 }
4687                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4688                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4689                                         SCTP_INP_RLOCK(inp);
4690                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4691                                                 SCTP_TCB_LOCK(stcb);
4692                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4693                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4694                                                 }
4695                                                 SCTP_TCB_UNLOCK(stcb);
4696                                         }
4697                                         SCTP_INP_RUNLOCK(inp);
4698                                 }
4699                         }
4700                         break;
4701                 }
4702         case SCTP_PEER_ADDR_PARAMS:
4703                 {
4704                         struct sctp_paddrparams *paddrp;
4705                         struct sctp_nets *net;
4706
4707                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4708                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4709                         net = NULL;
4710                         if (stcb) {
4711                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4712                         } else {
4713                                 /*
4714                                  * We increment here since
4715                                  * sctp_findassociation_ep_addr() wil do a
4716                                  * decrement if it finds the stcb as long as
4717                                  * the locked tcb (last argument) is NOT a
4718                                  * TCB.. aka NULL.
4719                                  */
4720                                 SCTP_INP_INCR_REF(inp);
4721                                 stcb = sctp_findassociation_ep_addr(&inp,
4722                                     (struct sockaddr *)&paddrp->spp_address,
4723                                     &net, NULL, NULL);
4724                                 if (stcb == NULL) {
4725                                         SCTP_INP_DECR_REF(inp);
4726                                 }
4727                         }
4728                         if (stcb && (net == NULL)) {
4729                                 struct sockaddr *sa;
4730
4731                                 sa = (struct sockaddr *)&paddrp->spp_address;
4732 #ifdef INET
4733                                 if (sa->sa_family == AF_INET) {
4734
4735                                         struct sockaddr_in *sin;
4736
4737                                         sin = (struct sockaddr_in *)sa;
4738                                         if (sin->sin_addr.s_addr) {
4739                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4740                                                 SCTP_TCB_UNLOCK(stcb);
4741                                                 error = EINVAL;
4742                                                 break;
4743                                         }
4744                                 } else
4745 #endif
4746 #ifdef INET6
4747                                 if (sa->sa_family == AF_INET6) {
4748                                         struct sockaddr_in6 *sin6;
4749
4750                                         sin6 = (struct sockaddr_in6 *)sa;
4751                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4752                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4753                                                 SCTP_TCB_UNLOCK(stcb);
4754                                                 error = EINVAL;
4755                                                 break;
4756                                         }
4757                                 } else
4758 #endif
4759                                 {
4760                                         error = EAFNOSUPPORT;
4761                                         SCTP_TCB_UNLOCK(stcb);
4762                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4763                                         break;
4764                                 }
4765                         }
4766                         /* sanity checks */
4767                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4768                                 if (stcb)
4769                                         SCTP_TCB_UNLOCK(stcb);
4770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4771                                 return (EINVAL);
4772                         }
4773                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4774                                 if (stcb)
4775                                         SCTP_TCB_UNLOCK(stcb);
4776                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4777                                 return (EINVAL);
4778                         }
4779                         if (stcb) {
4780                                 /************************TCB SPECIFIC SET ******************/
4781                                 /*
4782                                  * do we change the timer for HB, we run
4783                                  * only one?
4784                                  */
4785                                 int ovh = 0;
4786
4787                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4788                                         ovh = SCTP_MED_OVERHEAD;
4789                                 } else {
4790                                         ovh = SCTP_MED_V4_OVERHEAD;
4791                                 }
4792
4793                                 /* network sets ? */
4794                                 if (net) {
4795                                         /************************NET SPECIFIC SET ******************/
4796                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4797                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4798                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4799                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4800                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4801                                                 }
4802                                                 net->dest_state |= SCTP_ADDR_NOHB;
4803                                         }
4804                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4805                                                 if (paddrp->spp_hbinterval) {
4806                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4807                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4808                                                         net->heart_beat_delay = 0;
4809                                                 }
4810                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4811                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4812                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4813                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4814                                         }
4815                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4816                                                 /* on demand HB */
4817                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4818                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
4819                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4820                                         }
4821                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4822                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4823                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4824                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4825                                                 }
4826                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
4827                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4828                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4829                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
4830                                                 }
4831                                         }
4832                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4833                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4834                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4835                                                 }
4836                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4837                                         }
4838                                         if (paddrp->spp_pathmaxrxt) {
4839                                                 if (net->dest_state & SCTP_ADDR_PF) {
4840                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4841                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4842                                                         }
4843                                                 } else {
4844                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4845                                                             (net->error_count > net->pf_threshold)) {
4846                                                                 net->dest_state |= SCTP_ADDR_PF;
4847                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4848                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4849                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4850                                                         }
4851                                                 }
4852                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4853                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4854                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4855                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
4856                                                         }
4857                                                 } else {
4858                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4859                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4860                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
4861                                                         }
4862                                                 }
4863                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4864                                         }
4865                                         if (paddrp->spp_flags & SPP_DSCP) {
4866                                                 net->dscp = paddrp->spp_dscp & 0xfc;
4867                                                 net->dscp |= 0x01;
4868                                         }
4869 #ifdef INET6
4870                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4871                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4872                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4873                                                         net->flowlabel |= 0x80000000;
4874                                                 }
4875                                         }
4876 #endif
4877                                 } else {
4878                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4879                                         if (paddrp->spp_pathmaxrxt) {
4880                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4881                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4882                                                         if (net->dest_state & SCTP_ADDR_PF) {
4883                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4884                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4885                                                                 }
4886                                                         } else {
4887                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4888                                                                     (net->error_count > net->pf_threshold)) {
4889                                                                         net->dest_state |= SCTP_ADDR_PF;
4890                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4891                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4892                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4893                                                                 }
4894                                                         }
4895                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4896                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4897                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4898                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
4899                                                                 }
4900                                                         } else {
4901                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4902                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4903                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
4904                                                                 }
4905                                                         }
4906                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4907                                                 }
4908                                         }
4909                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4910                                                 if (paddrp->spp_hbinterval) {
4911                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4912                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4913                                                         stcb->asoc.heart_beat_delay = 0;
4914                                                 }
4915                                                 /* Turn back on the timer */
4916                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4917                                                         if (paddrp->spp_hbinterval) {
4918                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4919                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4920                                                                 net->heart_beat_delay = 0;
4921                                                         }
4922                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4923                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4924                                                         }
4925                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4926                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4927                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4928                                                 }
4929                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4930                                         }
4931                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4932                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4933                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4934                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4935                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4936                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4937                                                                 }
4938                                                         }
4939                                                 }
4940                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4941                                         }
4942                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4943                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4944                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4945                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4946                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4947                                                         }
4948                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
4949                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4950                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4951                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
4952                                                         }
4953                                                 }
4954                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4955                                         }
4956                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4957                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4958                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4959                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4960                                                         }
4961                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4962                                                 }
4963                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4964                                         }
4965                                         if (paddrp->spp_flags & SPP_DSCP) {
4966                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4967                                                         net->dscp = paddrp->spp_dscp & 0xfc;
4968                                                         net->dscp |= 0x01;
4969                                                 }
4970                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
4971                                                 stcb->asoc.default_dscp |= 0x01;
4972                                         }
4973 #ifdef INET6
4974                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4975                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4976                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4977                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4978                                                                 net->flowlabel |= 0x80000000;
4979                                                         }
4980                                                 }
4981                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4982                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4983                                         }
4984 #endif
4985                                 }
4986                                 SCTP_TCB_UNLOCK(stcb);
4987                         } else {
4988                                 /************************NO TCB, SET TO default stuff ******************/
4989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4991                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4992                                         SCTP_INP_WLOCK(inp);
4993                                         /*
4994                                          * For the TOS/FLOWLABEL stuff you
4995                                          * set it with the options on the
4996                                          * socket
4997                                          */
4998                                         if (paddrp->spp_pathmaxrxt) {
4999                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5000                                         }
5001                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5002                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5003                                         else if (paddrp->spp_hbinterval) {
5004                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5005                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5006                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5007                                         }
5008                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5009                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5010                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5011                                                 } else if (paddrp->spp_hbinterval) {
5012                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5013                                                 }
5014                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5015                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5016                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5017                                         }
5018                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5019                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5020                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5021                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5022                                         }
5023                                         if (paddrp->spp_flags & SPP_DSCP) {
5024                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5025                                                 inp->sctp_ep.default_dscp |= 0x01;
5026                                         }
5027 #ifdef INET6
5028                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5029                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5030                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5031                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5032                                                 }
5033                                         }
5034 #endif
5035                                         SCTP_INP_WUNLOCK(inp);
5036                                 } else {
5037                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5038                                         error = EINVAL;
5039                                 }
5040                         }
5041                         break;
5042                 }
5043         case SCTP_RTOINFO:
5044                 {
5045                         struct sctp_rtoinfo *srto;
5046                         uint32_t new_init, new_min, new_max;
5047
5048                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5049                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5050
5051                         if (stcb) {
5052                                 if (srto->srto_initial)
5053                                         new_init = srto->srto_initial;
5054                                 else
5055                                         new_init = stcb->asoc.initial_rto;
5056                                 if (srto->srto_max)
5057                                         new_max = srto->srto_max;
5058                                 else
5059                                         new_max = stcb->asoc.maxrto;
5060                                 if (srto->srto_min)
5061                                         new_min = srto->srto_min;
5062                                 else
5063                                         new_min = stcb->asoc.minrto;
5064                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5065                                         stcb->asoc.initial_rto = new_init;
5066                                         stcb->asoc.maxrto = new_max;
5067                                         stcb->asoc.minrto = new_min;
5068                                 } else {
5069                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5070                                         error = EINVAL;
5071                                 }
5072                                 SCTP_TCB_UNLOCK(stcb);
5073                         } else {
5074                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5075                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5076                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5077                                         SCTP_INP_WLOCK(inp);
5078                                         if (srto->srto_initial)
5079                                                 new_init = srto->srto_initial;
5080                                         else
5081                                                 new_init = inp->sctp_ep.initial_rto;
5082                                         if (srto->srto_max)
5083                                                 new_max = srto->srto_max;
5084                                         else
5085                                                 new_max = inp->sctp_ep.sctp_maxrto;
5086                                         if (srto->srto_min)
5087                                                 new_min = srto->srto_min;
5088                                         else
5089                                                 new_min = inp->sctp_ep.sctp_minrto;
5090                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5091                                                 inp->sctp_ep.initial_rto = new_init;
5092                                                 inp->sctp_ep.sctp_maxrto = new_max;
5093                                                 inp->sctp_ep.sctp_minrto = new_min;
5094                                         } else {
5095                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5096                                                 error = EINVAL;
5097                                         }
5098                                         SCTP_INP_WUNLOCK(inp);
5099                                 } else {
5100                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5101                                         error = EINVAL;
5102                                 }
5103                         }
5104                         break;
5105                 }
5106         case SCTP_ASSOCINFO:
5107                 {
5108                         struct sctp_assocparams *sasoc;
5109
5110                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5111                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5112                         if (sasoc->sasoc_cookie_life) {
5113                                 /* boundary check the cookie life */
5114                                 if (sasoc->sasoc_cookie_life < 1000)
5115                                         sasoc->sasoc_cookie_life = 1000;
5116                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5117                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5118                                 }
5119                         }
5120                         if (stcb) {
5121                                 if (sasoc->sasoc_asocmaxrxt)
5122                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5123                                 if (sasoc->sasoc_cookie_life) {
5124                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5125                                 }
5126                                 SCTP_TCB_UNLOCK(stcb);
5127                         } else {
5128                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5129                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5130                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5131                                         SCTP_INP_WLOCK(inp);
5132                                         if (sasoc->sasoc_asocmaxrxt)
5133                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5134                                         if (sasoc->sasoc_cookie_life) {
5135                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5136                                         }
5137                                         SCTP_INP_WUNLOCK(inp);
5138                                 } else {
5139                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5140                                         error = EINVAL;
5141                                 }
5142                         }
5143                         break;
5144                 }
5145         case SCTP_INITMSG:
5146                 {
5147                         struct sctp_initmsg *sinit;
5148
5149                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5150                         SCTP_INP_WLOCK(inp);
5151                         if (sinit->sinit_num_ostreams)
5152                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5153
5154                         if (sinit->sinit_max_instreams)
5155                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5156
5157                         if (sinit->sinit_max_attempts)
5158                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5159
5160                         if (sinit->sinit_max_init_timeo)
5161                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5162                         SCTP_INP_WUNLOCK(inp);
5163                         break;
5164                 }
5165         case SCTP_PRIMARY_ADDR:
5166                 {
5167                         struct sctp_setprim *spa;
5168                         struct sctp_nets *net;
5169
5170                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5171                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5172
5173                         net = NULL;
5174                         if (stcb) {
5175                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
5176                         } else {
5177                                 /*
5178                                  * We increment here since
5179                                  * sctp_findassociation_ep_addr() wil do a
5180                                  * decrement if it finds the stcb as long as
5181                                  * the locked tcb (last argument) is NOT a
5182                                  * TCB.. aka NULL.
5183                                  */
5184                                 SCTP_INP_INCR_REF(inp);
5185                                 stcb = sctp_findassociation_ep_addr(&inp,
5186                                     (struct sockaddr *)&spa->ssp_addr,
5187                                     &net, NULL, NULL);
5188                                 if (stcb == NULL) {
5189                                         SCTP_INP_DECR_REF(inp);
5190                                 }
5191                         }
5192
5193                         if ((stcb) && (net)) {
5194                                 if ((net != stcb->asoc.primary_destination) &&
5195                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5196                                         /* Ok we need to set it */
5197                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5198                                                 if ((stcb->asoc.alternate) &&
5199                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5200                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5201                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5202                                                         stcb->asoc.alternate = NULL;
5203                                                 }
5204                                         }
5205                                 }
5206                         } else {
5207                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5208                                 error = EINVAL;
5209                         }
5210                         if (stcb) {
5211                                 SCTP_TCB_UNLOCK(stcb);
5212                         }
5213                         break;
5214                 }
5215         case SCTP_SET_DYNAMIC_PRIMARY:
5216                 {
5217                         union sctp_sockstore *ss;
5218
5219                         error = priv_check(curthread,
5220                             PRIV_NETINET_RESERVEDPORT);
5221                         if (error)
5222                                 break;
5223
5224                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5225                         /* SUPER USER CHECK? */
5226                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5227                         break;
5228                 }
5229         case SCTP_SET_PEER_PRIMARY_ADDR:
5230                 {
5231                         struct sctp_setpeerprim *sspp;
5232
5233                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5234                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5235                         if (stcb != NULL) {
5236                                 struct sctp_ifa *ifa;
5237
5238                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5239                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5240                                 if (ifa == NULL) {
5241                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5242                                         error = EINVAL;
5243                                         goto out_of_it;
5244                                 }
5245                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5246                                         /*
5247                                          * Must validate the ifa found is in
5248                                          * our ep
5249                                          */
5250                                         struct sctp_laddr *laddr;
5251                                         int found = 0;
5252
5253                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5254                                                 if (laddr->ifa == NULL) {
5255                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5256                                                             __FUNCTION__);
5257                                                         continue;
5258                                                 }
5259                                                 if (laddr->ifa == ifa) {
5260                                                         found = 1;
5261                                                         break;
5262                                                 }
5263                                         }
5264                                         if (!found) {
5265                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5266                                                 error = EINVAL;
5267                                                 goto out_of_it;
5268                                         }
5269                                 }
5270                                 if (sctp_set_primary_ip_address_sa(stcb,
5271                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5272                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5273                                         error = EINVAL;
5274                                 }
5275                 out_of_it:
5276                                 SCTP_TCB_UNLOCK(stcb);
5277                         } else {
5278                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5279                                 error = EINVAL;
5280                         }
5281                         break;
5282                 }
5283         case SCTP_BINDX_ADD_ADDR:
5284                 {
5285                         struct sctp_getaddresses *addrs;
5286                         struct thread *td;
5287
5288                         td = (struct thread *)p;
5289                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5290                             optsize);
5291 #ifdef INET
5292                         if (addrs->addr->sa_family == AF_INET) {
5293                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5294                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5295                                         error = EINVAL;
5296                                         break;
5297                                 }
5298                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5299                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5300                                         break;
5301                                 }
5302                         } else
5303 #endif
5304 #ifdef INET6
5305                         if (addrs->addr->sa_family == AF_INET6) {
5306                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5307                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5308                                         error = EINVAL;
5309                                         break;
5310                                 }
5311                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5312                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5313                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5314                                         break;
5315                                 }
5316                         } else
5317 #endif
5318                         {
5319                                 error = EAFNOSUPPORT;
5320                                 break;
5321                         }
5322                         sctp_bindx_add_address(so, inp, addrs->addr,
5323                             addrs->sget_assoc_id, vrf_id,
5324                             &error, p);
5325                         break;
5326                 }
5327         case SCTP_BINDX_REM_ADDR:
5328                 {
5329                         struct sctp_getaddresses *addrs;
5330                         struct thread *td;
5331
5332                         td = (struct thread *)p;
5333
5334                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5335 #ifdef INET
5336                         if (addrs->addr->sa_family == AF_INET) {
5337                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5338                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5339                                         error = EINVAL;
5340                                         break;
5341                                 }
5342                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5343                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5344                                         break;
5345                                 }
5346                         } else
5347 #endif
5348 #ifdef INET6
5349                         if (addrs->addr->sa_family == AF_INET6) {
5350                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5351                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5352                                         error = EINVAL;
5353                                         break;
5354                                 }
5355                                 if (td != NULL &&
5356                                     (error = prison_local_ip6(td->td_ucred,
5357                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5358                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5359                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5360                                         break;
5361                                 }
5362                         } else
5363 #endif
5364                         {
5365                                 error = EAFNOSUPPORT;
5366                                 break;
5367                         }
5368                         sctp_bindx_delete_address(inp, addrs->addr,
5369                             addrs->sget_assoc_id, vrf_id,
5370                             &error);
5371                         break;
5372                 }
5373         case SCTP_EVENT:
5374                 {
5375                         struct sctp_event *event;
5376                         uint32_t event_type;
5377
5378                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5379                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5380                         switch (event->se_type) {
5381                         case SCTP_ASSOC_CHANGE:
5382                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5383                                 break;
5384                         case SCTP_PEER_ADDR_CHANGE:
5385                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5386                                 break;
5387                         case SCTP_REMOTE_ERROR:
5388                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5389                                 break;
5390                         case SCTP_SEND_FAILED:
5391                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5392                                 break;
5393                         case SCTP_SHUTDOWN_EVENT:
5394                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5395                                 break;
5396                         case SCTP_ADAPTATION_INDICATION:
5397                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5398                                 break;
5399                         case SCTP_PARTIAL_DELIVERY_EVENT:
5400                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5401                                 break;
5402                         case SCTP_AUTHENTICATION_EVENT:
5403                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5404                                 break;
5405                         case SCTP_STREAM_RESET_EVENT:
5406                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5407                                 break;
5408                         case SCTP_SENDER_DRY_EVENT:
5409                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5410                                 break;
5411                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5412                                 event_type = 0;
5413                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5414                                 error = ENOTSUP;
5415                                 break;
5416                         case SCTP_ASSOC_RESET_EVENT:
5417                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5418                                 break;
5419                         case SCTP_STREAM_CHANGE_EVENT:
5420                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5421                                 break;
5422                         case SCTP_SEND_FAILED_EVENT:
5423                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5424                                 break;
5425                         default:
5426                                 event_type = 0;
5427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5428                                 error = EINVAL;
5429                                 break;
5430                         }
5431                         if (event_type > 0) {
5432                                 if (stcb) {
5433                                         if (event->se_on) {
5434                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5435                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5436                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5437                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5438                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5439                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5440                                                         }
5441                                                 }
5442                                         } else {
5443                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5444                                         }
5445                                         SCTP_TCB_UNLOCK(stcb);
5446                                 } else {
5447                                         /*
5448                                          * We don't want to send up a storm
5449                                          * of events, so return an error for
5450                                          * sender dry events
5451                                          */
5452                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5453                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5454                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5455                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5456                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5457                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5458                                                 error = ENOTSUP;
5459                                                 break;
5460                                         }
5461                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5462                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5463                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5464                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5465                                                 SCTP_INP_WLOCK(inp);
5466                                                 if (event->se_on) {
5467                                                         sctp_feature_on(inp, event_type);
5468                                                 } else {
5469                                                         sctp_feature_off(inp, event_type);
5470                                                 }
5471                                                 SCTP_INP_WUNLOCK(inp);
5472                                         }
5473                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5474                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5475                                                 SCTP_INP_RLOCK(inp);
5476                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5477                                                         SCTP_TCB_LOCK(stcb);
5478                                                         if (event->se_on) {
5479                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5480                                                         } else {
5481                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5482                                                         }
5483                                                         SCTP_TCB_UNLOCK(stcb);
5484                                                 }
5485                                                 SCTP_INP_RUNLOCK(inp);
5486                                         }
5487                                 }
5488                         }
5489                         break;
5490                 }
5491         case SCTP_RECVRCVINFO:
5492                 {
5493                         int *onoff;
5494
5495                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5496                         SCTP_INP_WLOCK(inp);
5497                         if (*onoff != 0) {
5498                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5499                         } else {
5500                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5501                         }
5502                         SCTP_INP_WUNLOCK(inp);
5503                         break;
5504                 }
5505         case SCTP_RECVNXTINFO:
5506                 {
5507                         int *onoff;
5508
5509                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5510                         SCTP_INP_WLOCK(inp);
5511                         if (*onoff != 0) {
5512                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5513                         } else {
5514                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5515                         }
5516                         SCTP_INP_WUNLOCK(inp);
5517                         break;
5518                 }
5519         case SCTP_DEFAULT_SNDINFO:
5520                 {
5521                         struct sctp_sndinfo *info;
5522                         uint16_t policy;
5523
5524                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5525                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5526
5527                         if (stcb) {
5528                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5529                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5530                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5531                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5532                                         stcb->asoc.def_send.sinfo_flags |= policy;
5533                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5534                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5535                                 } else {
5536                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5537                                         error = EINVAL;
5538                                 }
5539                                 SCTP_TCB_UNLOCK(stcb);
5540                         } else {
5541                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5542                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5543                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5544                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5545                                         SCTP_INP_WLOCK(inp);
5546                                         inp->def_send.sinfo_stream = info->snd_sid;
5547                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5548                                         inp->def_send.sinfo_flags = info->snd_flags;
5549                                         inp->def_send.sinfo_flags |= policy;
5550                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5551                                         inp->def_send.sinfo_context = info->snd_context;
5552                                         SCTP_INP_WUNLOCK(inp);
5553                                 }
5554                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5555                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5556                                         SCTP_INP_RLOCK(inp);
5557                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5558                                                 SCTP_TCB_LOCK(stcb);
5559                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5560                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5561                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5562                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5563                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5564                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5565                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5566                                                 }
5567                                                 SCTP_TCB_UNLOCK(stcb);
5568                                         }
5569                                         SCTP_INP_RUNLOCK(inp);
5570                                 }
5571                         }
5572                         break;
5573                 }
5574         case SCTP_DEFAULT_PRINFO:
5575                 {
5576                         struct sctp_default_prinfo *info;
5577
5578                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5579                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5580
5581                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5583                                 error = EINVAL;
5584                                 break;
5585                         }
5586                         if (stcb) {
5587                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5588                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5589                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5590                                 SCTP_TCB_UNLOCK(stcb);
5591                         } else {
5592                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5593                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5594                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5595                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5596                                         SCTP_INP_WLOCK(inp);
5597                                         inp->def_send.sinfo_flags &= 0xfff0;
5598                                         inp->def_send.sinfo_flags |= info->pr_policy;
5599                                         inp->def_send.sinfo_timetolive = info->pr_value;
5600                                         SCTP_INP_WUNLOCK(inp);
5601                                 }
5602                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5603                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5604                                         SCTP_INP_RLOCK(inp);
5605                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5606                                                 SCTP_TCB_LOCK(stcb);
5607                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5608                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5609                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5610                                                 SCTP_TCB_UNLOCK(stcb);
5611                                         }
5612                                         SCTP_INP_RUNLOCK(inp);
5613                                 }
5614                         }
5615                         break;
5616                 }
5617         case SCTP_PEER_ADDR_THLDS:
5618                 /* Applies to the specific association */
5619                 {
5620                         struct sctp_paddrthlds *thlds;
5621                         struct sctp_nets *net;
5622
5623                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5624                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5625                         net = NULL;
5626                         if (stcb) {
5627                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5628                         } else {
5629                                 /*
5630                                  * We increment here since
5631                                  * sctp_findassociation_ep_addr() wil do a
5632                                  * decrement if it finds the stcb as long as
5633                                  * the locked tcb (last argument) is NOT a
5634                                  * TCB.. aka NULL.
5635                                  */
5636                                 SCTP_INP_INCR_REF(inp);
5637                                 stcb = sctp_findassociation_ep_addr(&inp,
5638                                     (struct sockaddr *)&thlds->spt_assoc_id,
5639                                     &net, NULL, NULL);
5640                                 if (stcb == NULL) {
5641                                         SCTP_INP_DECR_REF(inp);
5642                                 }
5643                         }
5644                         if (stcb && (net == NULL)) {
5645                                 struct sockaddr *sa;
5646
5647                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5648 #ifdef INET
5649                                 if (sa->sa_family == AF_INET) {
5650
5651                                         struct sockaddr_in *sin;
5652
5653                                         sin = (struct sockaddr_in *)sa;
5654                                         if (sin->sin_addr.s_addr) {
5655                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5656                                                 SCTP_TCB_UNLOCK(stcb);
5657                                                 error = EINVAL;
5658                                                 break;
5659                                         }
5660                                 } else
5661 #endif
5662 #ifdef INET6
5663                                 if (sa->sa_family == AF_INET6) {
5664                                         struct sockaddr_in6 *sin6;
5665
5666                                         sin6 = (struct sockaddr_in6 *)sa;
5667                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5668                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5669                                                 SCTP_TCB_UNLOCK(stcb);
5670                                                 error = EINVAL;
5671                                                 break;
5672                                         }
5673                                 } else
5674 #endif
5675                                 {
5676                                         error = EAFNOSUPPORT;
5677                                         SCTP_TCB_UNLOCK(stcb);
5678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5679                                         break;
5680                                 }
5681                         }
5682                         if (stcb) {
5683                                 if (net) {
5684                                         if (net->dest_state & SCTP_ADDR_PF) {
5685                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5686                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5687                                                         net->dest_state &= ~SCTP_ADDR_PF;
5688                                                 }
5689                                         } else {
5690                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5691                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5692                                                         net->dest_state |= SCTP_ADDR_PF;
5693                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5694                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5695                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5696                                                 }
5697                                         }
5698                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5699                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5700                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5701                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5702                                                 }
5703                                         } else {
5704                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5705                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5706                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5707                                                 }
5708                                         }
5709                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5710                                         net->pf_threshold = thlds->spt_pathpfthld;
5711                                 } else {
5712                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5713                                                 if (net->dest_state & SCTP_ADDR_PF) {
5714                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5715                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5716                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5717                                                         }
5718                                                 } else {
5719                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5720                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5721                                                                 net->dest_state |= SCTP_ADDR_PF;
5722                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5723                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5724                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5725                                                         }
5726                                                 }
5727                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5728                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5729                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5730                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5731                                                         }
5732                                                 } else {
5733                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5734                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5735                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5736                                                         }
5737                                                 }
5738                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5739                                                 net->pf_threshold = thlds->spt_pathpfthld;
5740                                         }
5741                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5742                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5743                                 }
5744                         } else {
5745                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5746                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5747                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5748                                         SCTP_INP_WLOCK(inp);
5749                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5750                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5751                                         SCTP_INP_WUNLOCK(inp);
5752                                 } else {
5753                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5754                                         error = EINVAL;
5755                                 }
5756                         }
5757                         break;
5758                 }
5759         case SCTP_REMOTE_UDP_ENCAPS_PORT:
5760                 {
5761                         struct sctp_udpencaps *encaps;
5762                         struct sctp_nets *net;
5763
5764                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
5765                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
5766                         if (stcb) {
5767                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
5768                         } else {
5769                                 /*
5770                                  * We increment here since
5771                                  * sctp_findassociation_ep_addr() wil do a
5772                                  * decrement if it finds the stcb as long as
5773                                  * the locked tcb (last argument) is NOT a
5774                                  * TCB.. aka NULL.
5775                                  */
5776                                 net = NULL;
5777                                 SCTP_INP_INCR_REF(inp);
5778                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
5779                                 if (stcb == NULL) {
5780                                         SCTP_INP_DECR_REF(inp);
5781                                 }
5782                         }
5783                         if (stcb && (net == NULL)) {
5784                                 struct sockaddr *sa;
5785
5786                                 sa = (struct sockaddr *)&encaps->sue_address;
5787 #ifdef INET
5788                                 if (sa->sa_family == AF_INET) {
5789
5790                                         struct sockaddr_in *sin;
5791
5792                                         sin = (struct sockaddr_in *)sa;
5793                                         if (sin->sin_addr.s_addr) {
5794                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5795                                                 SCTP_TCB_UNLOCK(stcb);
5796                                                 error = EINVAL;
5797                                                 break;
5798                                         }
5799                                 } else
5800 #endif
5801 #ifdef INET6
5802                                 if (sa->sa_family == AF_INET6) {
5803                                         struct sockaddr_in6 *sin6;
5804
5805                                         sin6 = (struct sockaddr_in6 *)sa;
5806                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5807                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5808                                                 SCTP_TCB_UNLOCK(stcb);
5809                                                 error = EINVAL;
5810                                                 break;
5811                                         }
5812                                 } else
5813 #endif
5814                                 {
5815                                         error = EAFNOSUPPORT;
5816                                         SCTP_TCB_UNLOCK(stcb);
5817                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5818                                         break;
5819                                 }
5820                         }
5821                         if (stcb) {
5822                                 if (net) {
5823                                         net->port = encaps->sue_port;
5824                                 } else {
5825                                         stcb->asoc.port = encaps->sue_port;
5826                                 }
5827                                 SCTP_TCB_UNLOCK(stcb);
5828                         } else {
5829                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5830                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5831                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
5832                                         SCTP_INP_WLOCK(inp);
5833                                         inp->sctp_ep.port = encaps->sue_port;
5834                                         SCTP_INP_WUNLOCK(inp);
5835                                 } else {
5836                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5837                                         error = EINVAL;
5838                                 }
5839                         }
5840                         break;
5841                 }
5842         default:
5843                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5844                 error = ENOPROTOOPT;
5845                 break;
5846         }                       /* end switch (opt) */
5847         return (error);
5848 }
5849
5850 int
5851 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5852 {
5853         void *optval = NULL;
5854         size_t optsize = 0;
5855         void *p;
5856         int error = 0;
5857
5858         if (sopt->sopt_level != IPPROTO_SCTP) {
5859                 /* wrong proto level... send back up to IP */
5860 #ifdef INET6
5861                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5862                         error = ip6_ctloutput(so, sopt);
5863 #endif                          /* INET6 */
5864 #if defined(INET) && defined(INET6)
5865                 else
5866 #endif
5867 #ifdef INET
5868                         error = ip_ctloutput(so, sopt);
5869 #endif
5870                 return (error);
5871         }
5872         optsize = sopt->sopt_valsize;
5873         if (optsize) {
5874                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5875                 if (optval == NULL) {
5876                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5877                         return (ENOBUFS);
5878                 }
5879                 error = sooptcopyin(sopt, optval, optsize, optsize);
5880                 if (error) {
5881                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5882                         goto out;
5883                 }
5884         }
5885         p = (void *)sopt->sopt_td;
5886         if (sopt->sopt_dir == SOPT_SET) {
5887                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5888         } else if (sopt->sopt_dir == SOPT_GET) {
5889                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5890         } else {
5891                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5892                 error = EINVAL;
5893         }
5894         if ((error == 0) && (optval != NULL)) {
5895                 error = sooptcopyout(sopt, optval, optsize);
5896                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5897         } else if (optval != NULL) {
5898                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5899         }
5900 out:
5901         return (error);
5902 }
5903
5904 #ifdef INET
5905 static int
5906 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5907 {
5908         int error = 0;
5909         int create_lock_on = 0;
5910         uint32_t vrf_id;
5911         struct sctp_inpcb *inp;
5912         struct sctp_tcb *stcb = NULL;
5913
5914         inp = (struct sctp_inpcb *)so->so_pcb;
5915         if (inp == NULL) {
5916                 /* I made the same as TCP since we are not setup? */
5917                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5918                 return (ECONNRESET);
5919         }
5920         if (addr == NULL) {
5921                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5922                 return EINVAL;
5923         }
5924         switch (addr->sa_family) {
5925 #ifdef INET6
5926         case AF_INET6:
5927                 {
5928                         struct sockaddr_in6 *sin6p;
5929
5930                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5931                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5932                                 return (EINVAL);
5933                         }
5934                         sin6p = (struct sockaddr_in6 *)addr;
5935                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5937                                 return (error);
5938                         }
5939                         break;
5940                 }
5941 #endif
5942 #ifdef INET
5943         case AF_INET:
5944                 {
5945                         struct sockaddr_in *sinp;
5946
5947                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5948                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5949                                 return (EINVAL);
5950                         }
5951                         sinp = (struct sockaddr_in *)addr;
5952                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5953                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5954                                 return (error);
5955                         }
5956                         break;
5957                 }
5958 #endif
5959         default:
5960                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5961                 return (EAFNOSUPPORT);
5962         }
5963         SCTP_INP_INCR_REF(inp);
5964         SCTP_ASOC_CREATE_LOCK(inp);
5965         create_lock_on = 1;
5966
5967
5968         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5969             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5970                 /* Should I really unlock ? */
5971                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5972                 error = EFAULT;
5973                 goto out_now;
5974         }
5975 #ifdef INET6
5976         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5977             (addr->sa_family == AF_INET6)) {
5978                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5979                 error = EINVAL;
5980                 goto out_now;
5981         }
5982 #endif
5983         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5984             SCTP_PCB_FLAGS_UNBOUND) {
5985                 /* Bind a ephemeral port */
5986                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5987                 if (error) {
5988                         goto out_now;
5989                 }
5990         }
5991         /* Now do we connect? */
5992         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5993             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5994                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5995                 error = EINVAL;
5996                 goto out_now;
5997         }
5998         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5999             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6000                 /* We are already connected AND the TCP model */
6001                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6002                 error = EADDRINUSE;
6003                 goto out_now;
6004         }
6005         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6006                 SCTP_INP_RLOCK(inp);
6007                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6008                 SCTP_INP_RUNLOCK(inp);
6009         } else {
6010                 /*
6011                  * We increment here since sctp_findassociation_ep_addr()
6012                  * will do a decrement if it finds the stcb as long as the
6013                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6014                  */
6015                 SCTP_INP_INCR_REF(inp);
6016                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6017                 if (stcb == NULL) {
6018                         SCTP_INP_DECR_REF(inp);
6019                 } else {
6020                         SCTP_TCB_UNLOCK(stcb);
6021                 }
6022         }
6023         if (stcb != NULL) {
6024                 /* Already have or am bring up an association */
6025                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6026                 error = EALREADY;
6027                 goto out_now;
6028         }
6029         vrf_id = inp->def_vrf_id;
6030         /* We are GOOD to go */
6031         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6032         if (stcb == NULL) {
6033                 /* Gak! no memory */
6034                 goto out_now;
6035         }
6036         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6037                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6038                 /* Set the connected flag so we can queue data */
6039                 soisconnecting(so);
6040         }
6041         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6042         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6043
6044         /* initialize authentication parameters for the assoc */
6045         sctp_initialize_auth_params(inp, stcb);
6046
6047         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6048         SCTP_TCB_UNLOCK(stcb);
6049 out_now:
6050         if (create_lock_on) {
6051                 SCTP_ASOC_CREATE_UNLOCK(inp);
6052         }
6053         SCTP_INP_DECR_REF(inp);
6054         return (error);
6055 }
6056
6057 #endif
6058
6059 int
6060 sctp_listen(struct socket *so, int backlog, struct thread *p)
6061 {
6062         /*
6063          * Note this module depends on the protocol processing being called
6064          * AFTER any socket level flags and backlog are applied to the
6065          * socket. The traditional way that the socket flags are applied is
6066          * AFTER protocol processing. We have made a change to the
6067          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6068          * place if the socket API for SCTP is to work properly.
6069          */
6070
6071         int error = 0;
6072         struct sctp_inpcb *inp;
6073
6074         inp = (struct sctp_inpcb *)so->so_pcb;
6075         if (inp == NULL) {
6076                 /* I made the same as TCP since we are not setup? */
6077                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6078                 return (ECONNRESET);
6079         }
6080         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6081                 /* See if we have a listener */
6082                 struct sctp_inpcb *tinp;
6083                 union sctp_sockstore store, *sp;
6084
6085                 sp = &store;
6086                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6087                         /* not bound all */
6088                         struct sctp_laddr *laddr;
6089
6090                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6091                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6092                                 switch (sp->sa.sa_family) {
6093 #ifdef INET
6094                                 case AF_INET:
6095                                         sp->sin.sin_port = inp->sctp_lport;
6096                                         break;
6097 #endif
6098 #ifdef INET6
6099                                 case AF_INET6:
6100                                         sp->sin6.sin6_port = inp->sctp_lport;
6101                                         break;
6102 #endif
6103                                 default:
6104                                         break;
6105                                 }
6106                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6107                                 if (tinp && (tinp != inp) &&
6108                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6109                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6110                                     (tinp->sctp_socket->so_qlimit)) {
6111                                         /*
6112                                          * we have a listener already and
6113                                          * its not this inp.
6114                                          */
6115                                         SCTP_INP_DECR_REF(tinp);
6116                                         return (EADDRINUSE);
6117                                 } else if (tinp) {
6118                                         SCTP_INP_DECR_REF(tinp);
6119                                 }
6120                         }
6121                 } else {
6122                         /* Setup a local addr bound all */
6123                         memset(&store, 0, sizeof(store));
6124                         switch (sp->sa.sa_family) {
6125 #ifdef INET
6126                         case AF_INET:
6127                                 store.sin.sin_port = inp->sctp_lport;
6128                                 break;
6129 #endif
6130 #ifdef INET6
6131                         case AF_INET6:
6132                                 sp->sin6.sin6_port = inp->sctp_lport;
6133                                 break;
6134 #endif
6135                         default:
6136                                 break;
6137                         }
6138 #ifdef INET6
6139                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6140                                 store.sa.sa_family = AF_INET6;
6141                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6142                         }
6143 #endif
6144 #ifdef INET
6145                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6146                                 store.sa.sa_family = AF_INET;
6147                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6148                         }
6149 #endif
6150                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6151                         if (tinp && (tinp != inp) &&
6152                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6153                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6154                             (tinp->sctp_socket->so_qlimit)) {
6155                                 /*
6156                                  * we have a listener already and its not
6157                                  * this inp.
6158                                  */
6159                                 SCTP_INP_DECR_REF(tinp);
6160                                 return (EADDRINUSE);
6161                         } else if (tinp) {
6162                                 SCTP_INP_DECR_REF(inp);
6163                         }
6164                 }
6165         }
6166         SCTP_INP_RLOCK(inp);
6167 #ifdef SCTP_LOCK_LOGGING
6168         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6169                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6170         }
6171 #endif
6172         SOCK_LOCK(so);
6173         error = solisten_proto_check(so);
6174         if (error) {
6175                 SOCK_UNLOCK(so);
6176                 SCTP_INP_RUNLOCK(inp);
6177                 return (error);
6178         }
6179         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6180             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6181                 /*
6182                  * The unlucky case - We are in the tcp pool with this guy.
6183                  * - Someone else is in the main inp slot. - We must move
6184                  * this guy (the listener) to the main slot - We must then
6185                  * move the guy that was listener to the TCP Pool.
6186                  */
6187                 if (sctp_swap_inpcb_for_listen(inp)) {
6188                         goto in_use;
6189                 }
6190         }
6191         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6192             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6193                 /* We are already connected AND the TCP model */
6194 in_use:
6195                 SCTP_INP_RUNLOCK(inp);
6196                 SOCK_UNLOCK(so);
6197                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6198                 return (EADDRINUSE);
6199         }
6200         SCTP_INP_RUNLOCK(inp);
6201         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6202                 /* We must do a bind. */
6203                 SOCK_UNLOCK(so);
6204                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6205                         /* bind error, probably perm */
6206                         return (error);
6207                 }
6208                 SOCK_LOCK(so);
6209         }
6210         /* It appears for 7.0 and on, we must always call this. */
6211         solisten_proto(so, backlog);
6212         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6213                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6214                 so->so_options &= ~SO_ACCEPTCONN;
6215         }
6216         if (backlog == 0) {
6217                 /* turning off listen */
6218                 so->so_options &= ~SO_ACCEPTCONN;
6219         }
6220         SOCK_UNLOCK(so);
6221         return (error);
6222 }
6223
6224 static int sctp_defered_wakeup_cnt = 0;
6225
6226 int
6227 sctp_accept(struct socket *so, struct sockaddr **addr)
6228 {
6229         struct sctp_tcb *stcb;
6230         struct sctp_inpcb *inp;
6231         union sctp_sockstore store;
6232
6233 #ifdef INET6
6234         int error;
6235
6236 #endif
6237         inp = (struct sctp_inpcb *)so->so_pcb;
6238
6239         if (inp == NULL) {
6240                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6241                 return (ECONNRESET);
6242         }
6243         SCTP_INP_RLOCK(inp);
6244         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6245                 SCTP_INP_RUNLOCK(inp);
6246                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6247                 return (EOPNOTSUPP);
6248         }
6249         if (so->so_state & SS_ISDISCONNECTED) {
6250                 SCTP_INP_RUNLOCK(inp);
6251                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6252                 return (ECONNABORTED);
6253         }
6254         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6255         if (stcb == NULL) {
6256                 SCTP_INP_RUNLOCK(inp);
6257                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6258                 return (ECONNRESET);
6259         }
6260         SCTP_TCB_LOCK(stcb);
6261         SCTP_INP_RUNLOCK(inp);
6262         store = stcb->asoc.primary_destination->ro._l_addr;
6263         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6264         SCTP_TCB_UNLOCK(stcb);
6265         switch (store.sa.sa_family) {
6266 #ifdef INET
6267         case AF_INET:
6268                 {
6269                         struct sockaddr_in *sin;
6270
6271                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6272                         if (sin == NULL)
6273                                 return (ENOMEM);
6274                         sin->sin_family = AF_INET;
6275                         sin->sin_len = sizeof(*sin);
6276                         sin->sin_port = store.sin.sin_port;
6277                         sin->sin_addr = store.sin.sin_addr;
6278                         *addr = (struct sockaddr *)sin;
6279                         break;
6280                 }
6281 #endif
6282 #ifdef INET6
6283         case AF_INET6:
6284                 {
6285                         struct sockaddr_in6 *sin6;
6286
6287                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
6288                         if (sin6 == NULL)
6289                                 return (ENOMEM);
6290                         sin6->sin6_family = AF_INET6;
6291                         sin6->sin6_len = sizeof(*sin6);
6292                         sin6->sin6_port = store.sin6.sin6_port;
6293                         sin6->sin6_addr = store.sin6.sin6_addr;
6294                         if ((error = sa6_recoverscope(sin6)) != 0) {
6295                                 SCTP_FREE_SONAME(sin6);
6296                                 return (error);
6297                         }
6298                         *addr = (struct sockaddr *)sin6;
6299                         break;
6300                 }
6301 #endif
6302         default:
6303                 /* TSNH */
6304                 break;
6305         }
6306         /* Wake any delayed sleep action */
6307         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6308                 SCTP_INP_WLOCK(inp);
6309                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6310                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6311                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6312                         SCTP_INP_WUNLOCK(inp);
6313                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6314                         if (sowriteable(inp->sctp_socket)) {
6315                                 sowwakeup_locked(inp->sctp_socket);
6316                         } else {
6317                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6318                         }
6319                         SCTP_INP_WLOCK(inp);
6320                 }
6321                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6322                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6323                         SCTP_INP_WUNLOCK(inp);
6324                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6325                         if (soreadable(inp->sctp_socket)) {
6326                                 sctp_defered_wakeup_cnt++;
6327                                 sorwakeup_locked(inp->sctp_socket);
6328                         } else {
6329                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6330                         }
6331                         SCTP_INP_WLOCK(inp);
6332                 }
6333                 SCTP_INP_WUNLOCK(inp);
6334         }
6335         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6336                 SCTP_TCB_LOCK(stcb);
6337                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6338         }
6339         return (0);
6340 }
6341
6342 #ifdef INET
6343 int
6344 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6345 {
6346         struct sockaddr_in *sin;
6347         uint32_t vrf_id;
6348         struct sctp_inpcb *inp;
6349         struct sctp_ifa *sctp_ifa;
6350
6351         /*
6352          * Do the malloc first in case it blocks.
6353          */
6354         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6355         if (sin == NULL)
6356                 return (ENOMEM);
6357         sin->sin_family = AF_INET;
6358         sin->sin_len = sizeof(*sin);
6359         inp = (struct sctp_inpcb *)so->so_pcb;
6360         if (!inp) {
6361                 SCTP_FREE_SONAME(sin);
6362                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6363                 return (ECONNRESET);
6364         }
6365         SCTP_INP_RLOCK(inp);
6366         sin->sin_port = inp->sctp_lport;
6367         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6368                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6369                         struct sctp_tcb *stcb;
6370                         struct sockaddr_in *sin_a;
6371                         struct sctp_nets *net;
6372                         int fnd;
6373
6374                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6375                         if (stcb == NULL) {
6376                                 goto notConn;
6377                         }
6378                         fnd = 0;
6379                         sin_a = NULL;
6380                         SCTP_TCB_LOCK(stcb);
6381                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6382                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6383                                 if (sin_a == NULL)
6384                                         /* this will make coverity happy */
6385                                         continue;
6386
6387                                 if (sin_a->sin_family == AF_INET) {
6388                                         fnd = 1;
6389                                         break;
6390                                 }
6391                         }
6392                         if ((!fnd) || (sin_a == NULL)) {
6393                                 /* punt */
6394                                 SCTP_TCB_UNLOCK(stcb);
6395                                 goto notConn;
6396                         }
6397                         vrf_id = inp->def_vrf_id;
6398                         sctp_ifa = sctp_source_address_selection(inp,
6399                             stcb,
6400                             (sctp_route_t *) & net->ro,
6401                             net, 0, vrf_id);
6402                         if (sctp_ifa) {
6403                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6404                                 sctp_free_ifa(sctp_ifa);
6405                         }
6406                         SCTP_TCB_UNLOCK(stcb);
6407                 } else {
6408                         /* For the bound all case you get back 0 */
6409         notConn:
6410                         sin->sin_addr.s_addr = 0;
6411                 }
6412
6413         } else {
6414                 /* Take the first IPv4 address in the list */
6415                 struct sctp_laddr *laddr;
6416                 int fnd = 0;
6417
6418                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6419                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6420                                 struct sockaddr_in *sin_a;
6421
6422                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6423                                 sin->sin_addr = sin_a->sin_addr;
6424                                 fnd = 1;
6425                                 break;
6426                         }
6427                 }
6428                 if (!fnd) {
6429                         SCTP_FREE_SONAME(sin);
6430                         SCTP_INP_RUNLOCK(inp);
6431                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6432                         return (ENOENT);
6433                 }
6434         }
6435         SCTP_INP_RUNLOCK(inp);
6436         (*addr) = (struct sockaddr *)sin;
6437         return (0);
6438 }
6439
6440 int
6441 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6442 {
6443         struct sockaddr_in *sin;
6444         int fnd;
6445         struct sockaddr_in *sin_a;
6446         struct sctp_inpcb *inp;
6447         struct sctp_tcb *stcb;
6448         struct sctp_nets *net;
6449
6450         /* Do the malloc first in case it blocks. */
6451         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6452         if (sin == NULL)
6453                 return (ENOMEM);
6454         sin->sin_family = AF_INET;
6455         sin->sin_len = sizeof(*sin);
6456
6457         inp = (struct sctp_inpcb *)so->so_pcb;
6458         if ((inp == NULL) ||
6459             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6460                 /* UDP type and listeners will drop out here */
6461                 SCTP_FREE_SONAME(sin);
6462                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6463                 return (ENOTCONN);
6464         }
6465         SCTP_INP_RLOCK(inp);
6466         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6467         if (stcb) {
6468                 SCTP_TCB_LOCK(stcb);
6469         }
6470         SCTP_INP_RUNLOCK(inp);
6471         if (stcb == NULL) {
6472                 SCTP_FREE_SONAME(sin);
6473                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6474                 return (ECONNRESET);
6475         }
6476         fnd = 0;
6477         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6478                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6479                 if (sin_a->sin_family == AF_INET) {
6480                         fnd = 1;
6481                         sin->sin_port = stcb->rport;
6482                         sin->sin_addr = sin_a->sin_addr;
6483                         break;
6484                 }
6485         }
6486         SCTP_TCB_UNLOCK(stcb);
6487         if (!fnd) {
6488                 /* No IPv4 address */
6489                 SCTP_FREE_SONAME(sin);
6490                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6491                 return (ENOENT);
6492         }
6493         (*addr) = (struct sockaddr *)sin;
6494         return (0);
6495 }
6496
6497 struct pr_usrreqs sctp_usrreqs = {
6498         .pru_abort = sctp_abort,
6499         .pru_accept = sctp_accept,
6500         .pru_attach = sctp_attach,
6501         .pru_bind = sctp_bind,
6502         .pru_connect = sctp_connect,
6503         .pru_control = in_control,
6504         .pru_close = sctp_close,
6505         .pru_detach = sctp_close,
6506         .pru_sopoll = sopoll_generic,
6507         .pru_flush = sctp_flush,
6508         .pru_disconnect = sctp_disconnect,
6509         .pru_listen = sctp_listen,
6510         .pru_peeraddr = sctp_peeraddr,
6511         .pru_send = sctp_sendm,
6512         .pru_shutdown = sctp_shutdown,
6513         .pru_sockaddr = sctp_ingetaddr,
6514         .pru_sosend = sctp_sosend,
6515         .pru_soreceive = sctp_soreceive
6516 };
6517
6518 #endif