sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                         }
 129                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 130                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 131                         }
 132                         chk->sent = SCTP_DATAGRAM_RESEND;
 133                         chk->rec.data.doing_fast_retransmit = 0;
 134                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 135                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 136                                     chk->whoTo->flight_size,
 137                                     chk->book_size,
 138                                     (uintptr_t) chk->whoTo,
 139                                     chk->rec.data.TSN_seq);
 140                         }
 141                         /* Clear any time so NO RTT is being done */
 142                         chk->do_rtt = 0;
 143                 }
 144         }
 145 }
 146
 147 #ifdef INET
 148 static void
 149 sctp_notify_mbuf(struct sctp_inpcb *inp,
 150     struct sctp_tcb *stcb,
 151     struct sctp_nets *net,
 152     struct ip *ip,
 153     struct sctphdr *sh)
 154 {
 155         struct icmp *icmph;
 156         int totsz, tmr_stopped = 0;
 157         uint16_t nxtsz;
 158
 159         /* protection */
 160         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 161             (ip == NULL) || (sh == NULL)) {
 162                 if (stcb != NULL) {
 163                         SCTP_TCB_UNLOCK(stcb);
 164                 }
 165                 return;
 166         }
 167         /* First job is to verify the vtag matches what I would send */
 168         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 169                 SCTP_TCB_UNLOCK(stcb);
 170                 return;
 171         }
 172         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 173             sizeof(struct ip)));
 174         if (icmph->icmp_type != ICMP_UNREACH) {
 175                 /* We only care about unreachable */
 176                 SCTP_TCB_UNLOCK(stcb);
 177                 return;
 178         }
 179         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 180                 /* not a unreachable message due to frag. */
 181                 SCTP_TCB_UNLOCK(stcb);
 182                 return;
 183         }
 184         totsz = ntohs(ip->ip_len);
 185
 186         nxtsz = ntohs(icmph->icmp_nextmtu);
 187         if (nxtsz == 0) {
 188                 /*
 189                  * old type router that does not tell us what the next size
 190                  * mtu is. Rats we will have to guess (in a educated fashion
 191                  * of course)
 192                  */
 193                 nxtsz = sctp_get_prev_mtu(totsz);
 194         }
 195         /* Stop any PMTU timer */
 196         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 197                 tmr_stopped = 1;
 198                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 199                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 200         }
 201         /* Adjust destination size limit */
 202         if (net->mtu > nxtsz) {
 203                 net->mtu = nxtsz;
 204                 if (net->port) {
 205                         net->mtu -= sizeof(struct udphdr);
 206                 }
 207         }
 208         /* now what about the ep? */
 209         if (stcb->asoc.smallest_mtu > nxtsz) {
 210                 sctp_pathmtu_adjustment(stcb, nxtsz);
 211         }
 212         if (tmr_stopped)
 213                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 214
 215         SCTP_TCB_UNLOCK(stcb);
 216 }
 217
 218 void
 219 sctp_notify(struct sctp_inpcb *inp,
 220     struct ip *ip,
 221     struct sctphdr *sh,
 222     struct sockaddr *to,
 223     struct sctp_tcb *stcb,
 224     struct sctp_nets *net)
 225 {
 226 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 227         struct socket *so;
 228
 229 #endif
 230         struct icmp *icmph;
 231
 232         /* protection */
 233         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 234             (sh == NULL) || (to == NULL)) {
 235                 if (stcb)
 236                         SCTP_TCB_UNLOCK(stcb);
 237                 return;
 238         }
 239         /* First job is to verify the vtag matches what I would send */
 240         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 241                 SCTP_TCB_UNLOCK(stcb);
 242                 return;
 243         }
 244         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 245             sizeof(struct ip)));
 246         if (icmph->icmp_type != ICMP_UNREACH) {
 247                 /* We only care about unreachable */
 248                 SCTP_TCB_UNLOCK(stcb);
 249                 return;
 250         }
 251         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 252             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 253             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 254             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 255             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 256             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 257             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 258             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 259
 260                 /*
 261                  * Hmm reachablity problems we must examine closely. If its
 262                  * not reachable, we may have lost a network. Or if there is
 263                  * NO protocol at the other end named SCTP. well we consider
 264                  * it a OOTB abort.
 265                  */
 266                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 267                         /* Ok that destination is NOT reachable */
 268                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 269                         net->dest_state &= ~SCTP_ADDR_PF;
 270                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 271                             stcb, 0,
 272                             (void *)net, SCTP_SO_NOT_LOCKED);
 273                 }
 274                 SCTP_TCB_UNLOCK(stcb);
 275         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 276             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 277                 /*
 278                  * Here the peer is either playing tricks on us, including
 279                  * an address that belongs to someone who does not support
 280                  * SCTP OR was a userland implementation that shutdown and
 281                  * now is dead. In either case treat it like a OOTB abort
 282                  * with no TCB
 283                  */
 284                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 285 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 286                 so = SCTP_INP_SO(inp);
 287                 atomic_add_int(&stcb->asoc.refcnt, 1);
 288                 SCTP_TCB_UNLOCK(stcb);
 289                 SCTP_SOCKET_LOCK(so, 1);
 290                 SCTP_TCB_LOCK(stcb);
 291                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 292 #endif
 293                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 294 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 295                 SCTP_SOCKET_UNLOCK(so, 1);
 296                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 297 #endif
 298                 /* no need to unlock here, since the TCB is gone */
 299         } else {
 300                 SCTP_TCB_UNLOCK(stcb);
 301         }
 302 }
 303
 304 #endif
 305
 306 #ifdef INET
 307 void
 308 sctp_ctlinput(cmd, sa, vip)
 309         int cmd;
 310         struct sockaddr *sa;
 311         void *vip;
 312 {
 313         struct ip *ip = vip;
 314         struct sctphdr *sh;
 315         uint32_t vrf_id;
 316
 317         /* FIX, for non-bsd is this right? */
 318         vrf_id = SCTP_DEFAULT_VRFID;
 319         if (sa->sa_family != AF_INET ||
 320             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 321                 return;
 322         }
 323         if (PRC_IS_REDIRECT(cmd)) {
 324                 ip = 0;
 325         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 326                 return;
 327         }
 328         if (ip) {
 329                 struct sctp_inpcb *inp = NULL;
 330                 struct sctp_tcb *stcb = NULL;
 331                 struct sctp_nets *net = NULL;
 332                 struct sockaddr_in to, from;
 333
 334                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 335                 bzero(&to, sizeof(to));
 336                 bzero(&from, sizeof(from));
 337                 from.sin_family = to.sin_family = AF_INET;
 338                 from.sin_len = to.sin_len = sizeof(to);
 339                 from.sin_port = sh->src_port;
 340                 from.sin_addr = ip->ip_src;
 341                 to.sin_port = sh->dest_port;
 342                 to.sin_addr = ip->ip_dst;
 343
 344                 /*
 345                  * 'to' holds the dest of the packet that failed to be sent.
 346                  * 'from' holds our local endpoint address. Thus we reverse
 347                  * the to and the from in the lookup.
 348                  */
 349                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 350                     (struct sockaddr *)&from,
 351                     &inp, &net, 1, vrf_id);
 352                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 353                         if (cmd != PRC_MSGSIZE) {
 354                                 sctp_notify(inp, ip, sh,
 355                                     (struct sockaddr *)&to, stcb,
 356                                     net);
 357                         } else {
 358                                 /* handle possible ICMP size messages */
 359                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 360                         }
 361                 } else {
 362                         if ((stcb == NULL) && (inp != NULL)) {
 363                                 /* reduce ref-count */
 364                                 SCTP_INP_WLOCK(inp);
 365                                 SCTP_INP_DECR_REF(inp);
 366                                 SCTP_INP_WUNLOCK(inp);
 367                         }
 368                         if (stcb) {
 369                                 SCTP_TCB_UNLOCK(stcb);
 370                         }
 371                 }
 372         }
 373         return;
 374 }
 375
 376 #endif
 377
 378 static int
 379 sctp_getcred(SYSCTL_HANDLER_ARGS)
 380 {
 381         struct xucred xuc;
 382         struct sockaddr_in addrs[2];
 383         struct sctp_inpcb *inp;
 384         struct sctp_nets *net;
 385         struct sctp_tcb *stcb;
 386         int error;
 387         uint32_t vrf_id;
 388
 389         /* FIX, for non-bsd is this right? */
 390         vrf_id = SCTP_DEFAULT_VRFID;
 391
 392         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 393
 394         if (error)
 395                 return (error);
 396
 397         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 398         if (error)
 399                 return (error);
 400
 401         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 402             sintosa(&addrs[0]),
 403             &inp, &net, 1, vrf_id);
 404         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 405                 if ((inp != NULL) && (stcb == NULL)) {
 406                         /* reduce ref-count */
 407                         SCTP_INP_WLOCK(inp);
 408                         SCTP_INP_DECR_REF(inp);
 409                         goto cred_can_cont;
 410                 }
 411                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 412                 error = ENOENT;
 413                 goto out;
 414         }
 415         SCTP_TCB_UNLOCK(stcb);
 416         /*
 417          * We use the write lock here, only since in the error leg we need
 418          * it. If we used RLOCK, then we would have to
 419          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 420          * Better to use higher wlock.
 421          */
 422         SCTP_INP_WLOCK(inp);
 423 cred_can_cont:
 424         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 425         if (error) {
 426                 SCTP_INP_WUNLOCK(inp);
 427                 goto out;
 428         }
 429         cru2x(inp->sctp_socket->so_cred, &xuc);
 430         SCTP_INP_WUNLOCK(inp);
 431         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 432 out:
 433         return (error);
 434 }
 435
 436 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 437     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 438
 439
 440 #ifdef INET
 441 static void
 442 sctp_abort(struct socket *so)
 443 {
 444         struct sctp_inpcb *inp;
 445         uint32_t flags;
 446
 447         inp = (struct sctp_inpcb *)so->so_pcb;
 448         if (inp == NULL) {
 449                 return;
 450         }
 451 sctp_must_try_again:
 452         flags = inp->sctp_flags;
 453 #ifdef SCTP_LOG_CLOSING
 454         sctp_log_closing(inp, NULL, 17);
 455 #endif
 456         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 457             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 458 #ifdef SCTP_LOG_CLOSING
 459                 sctp_log_closing(inp, NULL, 16);
 460 #endif
 461                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 462                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 463                 SOCK_LOCK(so);
 464                 SCTP_SB_CLEAR(so->so_snd);
 465                 /*
 466                  * same for the rcv ones, they are only here for the
 467                  * accounting/select.
 468                  */
 469                 SCTP_SB_CLEAR(so->so_rcv);
 470
 471                 /* Now null out the reference, we are completely detached. */
 472                 so->so_pcb = NULL;
 473                 SOCK_UNLOCK(so);
 474         } else {
 475                 flags = inp->sctp_flags;
 476                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 477                         goto sctp_must_try_again;
 478                 }
 479         }
 480         return;
 481 }
 482
 483 static int
 484 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 485 {
 486         struct sctp_inpcb *inp;
 487         struct inpcb *ip_inp;
 488         int error;
 489         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 490
 491 #ifdef IPSEC
 492         uint32_t flags;
 493
 494 #endif
 495
 496         inp = (struct sctp_inpcb *)so->so_pcb;
 497         if (inp != 0) {
 498                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 499                 return (EINVAL);
 500         }
 501         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 502                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 503                 if (error) {
 504                         return (error);
 505                 }
 506         }
 507         error = sctp_inpcb_alloc(so, vrf_id);
 508         if (error) {
 509                 return (error);
 510         }
 511         inp = (struct sctp_inpcb *)so->so_pcb;
 512         SCTP_INP_WLOCK(inp);
 513         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 514         ip_inp = &inp->ip_inp.inp;
 515         ip_inp->inp_vflag |= INP_IPV4;
 516         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 517 #ifdef IPSEC
 518         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 519 #ifdef SCTP_LOG_CLOSING
 520         sctp_log_closing(inp, NULL, 17);
 521 #endif
 522         if (error != 0) {
 523 try_again:
 524                 flags = inp->sctp_flags;
 525                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 526                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 527 #ifdef SCTP_LOG_CLOSING
 528                         sctp_log_closing(inp, NULL, 15);
 529 #endif
 530                         SCTP_INP_WUNLOCK(inp);
 531                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 532                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 533                 } else {
 534                         flags = inp->sctp_flags;
 535                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 536                                 goto try_again;
 537                         } else {
 538                                 SCTP_INP_WUNLOCK(inp);
 539                         }
 540                 }
 541                 return (error);
 542         }
 543 #endif                          /* IPSEC */
 544         SCTP_INP_WUNLOCK(inp);
 545         return (0);
 546 }
 547
 548 static int
 549 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 550 {
 551         struct sctp_inpcb *inp;
 552
 553         inp = (struct sctp_inpcb *)so->so_pcb;
 554         if (inp == NULL) {
 555                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 556                 return (EINVAL);
 557         }
 558         if (addr != NULL) {
 559                 if ((addr->sa_family != AF_INET) ||
 560                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 561                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 562                         return (EINVAL);
 563                 }
 564         }
 565         return (sctp_inpcb_bind(so, addr, NULL, p));
 566 }
 567
 568 #endif
 569 void
 570 sctp_close(struct socket *so)
 571 {
 572         struct sctp_inpcb *inp;
 573         uint32_t flags;
 574
 575         inp = (struct sctp_inpcb *)so->so_pcb;
 576         if (inp == NULL)
 577                 return;
 578
 579         /*
 580          * Inform all the lower layer assoc that we are done.
 581          */
 582 sctp_must_try_again:
 583         flags = inp->sctp_flags;
 584 #ifdef SCTP_LOG_CLOSING
 585         sctp_log_closing(inp, NULL, 17);
 586 #endif
 587         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 588             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 589                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 590                     (so->so_rcv.sb_cc > 0)) {
 591 #ifdef SCTP_LOG_CLOSING
 592                         sctp_log_closing(inp, NULL, 13);
 593 #endif
 594                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 595                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 596                 } else {
 597 #ifdef SCTP_LOG_CLOSING
 598                         sctp_log_closing(inp, NULL, 14);
 599 #endif
 600                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 601                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 602                 }
 603                 /*
 604                  * The socket is now detached, no matter what the state of
 605                  * the SCTP association.
 606                  */
 607                 SOCK_LOCK(so);
 608                 SCTP_SB_CLEAR(so->so_snd);
 609                 /*
 610                  * same for the rcv ones, they are only here for the
 611                  * accounting/select.
 612                  */
 613                 SCTP_SB_CLEAR(so->so_rcv);
 614
 615                 /* Now null out the reference, we are completely detached. */
 616                 so->so_pcb = NULL;
 617                 SOCK_UNLOCK(so);
 618         } else {
 619                 flags = inp->sctp_flags;
 620                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 621                         goto sctp_must_try_again;
 622                 }
 623         }
 624         return;
 625 }
 626
 627
 628 int
 629 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 630     struct mbuf *control, struct thread *p);
 631
 632
 633 int
 634 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 635     struct mbuf *control, struct thread *p)
 636 {
 637         struct sctp_inpcb *inp;
 638         int error;
 639
 640         inp = (struct sctp_inpcb *)so->so_pcb;
 641         if (inp == NULL) {
 642                 if (control) {
 643                         sctp_m_freem(control);
 644                         control = NULL;
 645                 }
 646                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 647                 sctp_m_freem(m);
 648                 return (EINVAL);
 649         }
 650         /* Got to have an to address if we are NOT a connected socket */
 651         if ((addr == NULL) &&
 652             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 653             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 654                 goto connected_type;
 655         } else if (addr == NULL) {
 656                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 657                 error = EDESTADDRREQ;
 658                 sctp_m_freem(m);
 659                 if (control) {
 660                         sctp_m_freem(control);
 661                         control = NULL;
 662                 }
 663                 return (error);
 664         }
 665 #ifdef INET6
 666         if (addr->sa_family != AF_INET) {
 667                 /* must be a v4 address! */
 668                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 669                 sctp_m_freem(m);
 670                 if (control) {
 671                         sctp_m_freem(control);
 672                         control = NULL;
 673                 }
 674                 error = EDESTADDRREQ;
 675                 return (error);
 676         }
 677 #endif                          /* INET6 */
 678 connected_type:
 679         /* now what about control */
 680         if (control) {
 681                 if (inp->control) {
 682                         SCTP_PRINTF("huh? control set?\n");
 683                         sctp_m_freem(inp->control);
 684                         inp->control = NULL;
 685                 }
 686                 inp->control = control;
 687         }
 688         /* Place the data */
 689         if (inp->pkt) {
 690                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 691                 inp->pkt_last = m;
 692         } else {
 693                 inp->pkt_last = inp->pkt = m;
 694         }
 695         if (
 696         /* FreeBSD uses a flag passed */
 697             ((flags & PRUS_MORETOCOME) == 0)
 698             ) {
 699                 /*
 700                  * note with the current version this code will only be used
 701                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 702                  * re-defining sosend to use the sctp_sosend. One can
 703                  * optionally switch back to this code (by changing back the
 704                  * definitions) but this is not advisable. This code is used
 705                  * by FreeBSD when sending a file with sendfile() though.
 706                  */
 707                 int ret;
 708
 709                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 710                 inp->pkt = NULL;
 711                 inp->control = NULL;
 712                 return (ret);
 713         } else {
 714                 return (0);
 715         }
 716 }
 717
 718 int
 719 sctp_disconnect(struct socket *so)
 720 {
 721         struct sctp_inpcb *inp;
 722
 723         inp = (struct sctp_inpcb *)so->so_pcb;
 724         if (inp == NULL) {
 725                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 726                 return (ENOTCONN);
 727         }
 728         SCTP_INP_RLOCK(inp);
 729         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 730             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 731                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 732                         /* No connection */
 733                         SCTP_INP_RUNLOCK(inp);
 734                         return (0);
 735                 } else {
 736                         struct sctp_association *asoc;
 737                         struct sctp_tcb *stcb;
 738
 739                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 740                         if (stcb == NULL) {
 741                                 SCTP_INP_RUNLOCK(inp);
 742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 743                                 return (EINVAL);
 744                         }
 745                         SCTP_TCB_LOCK(stcb);
 746                         asoc = &stcb->asoc;
 747                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 748                                 /* We are about to be freed, out of here */
 749                                 SCTP_TCB_UNLOCK(stcb);
 750                                 SCTP_INP_RUNLOCK(inp);
 751                                 return (0);
 752                         }
 753                         if (((so->so_options & SO_LINGER) &&
 754                             (so->so_linger == 0)) ||
 755                             (so->so_rcv.sb_cc > 0)) {
 756                                 if (SCTP_GET_STATE(asoc) !=
 757                                     SCTP_STATE_COOKIE_WAIT) {
 758                                         /* Left with Data unread */
 759                                         struct mbuf *err;
 760
 761                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 762                                         if (err) {
 763                                                 /*
 764                                                  * Fill in the user
 765                                                  * initiated abort
 766                                                  */
 767                                                 struct sctp_paramhdr *ph;
 768
 769                                                 ph = mtod(err, struct sctp_paramhdr *);
 770                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 771                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 772                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 773                                         }
 774                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 775                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 776                                 }
 777                                 SCTP_INP_RUNLOCK(inp);
 778                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 779                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 780                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 781                                 }
 782                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 783                                 /* No unlock tcb assoc is gone */
 784                                 return (0);
 785                         }
 786                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 787                             TAILQ_EMPTY(&asoc->sent_queue) &&
 788                             (asoc->stream_queue_cnt == 0)) {
 789                                 /* there is nothing queued to send, so done */
 790                                 if (asoc->locked_on_sending) {
 791                                         goto abort_anyway;
 792                                 }
 793                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 794                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 795                                         /* only send SHUTDOWN 1st time thru */
 796                                         struct sctp_nets *netp;
 797
 798                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 799                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 800                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 801                                         }
 802                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 803                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 804                                         sctp_stop_timers_for_shutdown(stcb);
 805                                         if (stcb->asoc.alternate) {
 806                                                 netp = stcb->asoc.alternate;
 807                                         } else {
 808                                                 netp = stcb->asoc.primary_destination;
 809                                         }
 810                                         sctp_send_shutdown(stcb, netp);
 811                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 812                                             stcb->sctp_ep, stcb, netp);
 813                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 814                                             stcb->sctp_ep, stcb, netp);
 815                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 816                                 }
 817                         } else {
 818                                 /*
 819                                  * we still got (or just got) data to send,
 820                                  * so set SHUTDOWN_PENDING
 821                                  */
 822                                 /*
 823                                  * XXX sockets draft says that SCTP_EOF
 824                                  * should be sent with no data. currently,
 825                                  * we will allow user data to be sent first
 826                                  * and move to SHUTDOWN-PENDING
 827                                  */
 828                                 struct sctp_nets *netp;
 829
 830                                 if (stcb->asoc.alternate) {
 831                                         netp = stcb->asoc.alternate;
 832                                 } else {
 833                                         netp = stcb->asoc.primary_destination;
 834                                 }
 835
 836                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 837                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 838                                     netp);
 839                                 if (asoc->locked_on_sending) {
 840                                         /* Locked to send out the data */
 841                                         struct sctp_stream_queue_pending *sp;
 842
 843                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 844                                         if (sp == NULL) {
 845                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 846                                                     asoc->locked_on_sending->stream_no);
 847                                         } else {
 848                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 849                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 850                                         }
 851                                 }
 852                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 853                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 854                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 855                                         struct mbuf *op_err;
 856
 857                         abort_anyway:
 858                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 859                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 860                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 861                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 862                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 863                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 864                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 865                                         }
 866                                         SCTP_INP_RUNLOCK(inp);
 867                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 868                                         return (0);
 869                                 } else {
 870                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 871                                 }
 872                         }
 873                         soisdisconnecting(so);
 874                         SCTP_TCB_UNLOCK(stcb);
 875                         SCTP_INP_RUNLOCK(inp);
 876                         return (0);
 877                 }
 878                 /* not reached */
 879         } else {
 880                 /* UDP model does not support this */
 881                 SCTP_INP_RUNLOCK(inp);
 882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 883                 return (EOPNOTSUPP);
 884         }
 885 }
 886
 887 int
 888 sctp_flush(struct socket *so, int how)
 889 {
 890         /*
 891          * We will just clear out the values and let subsequent close clear
 892          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 893          * they will not be able to read the data, the socket will block
 894          * that from happening.
 895          */
 896         struct sctp_inpcb *inp;
 897
 898         inp = (struct sctp_inpcb *)so->so_pcb;
 899         if (inp == NULL) {
 900                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 901                 return (EINVAL);
 902         }
 903         SCTP_INP_RLOCK(inp);
 904         /* For the 1 to many model this does nothing */
 905         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 906                 SCTP_INP_RUNLOCK(inp);
 907                 return (0);
 908         }
 909         SCTP_INP_RUNLOCK(inp);
 910         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 911                 /*
 912                  * First make sure the sb will be happy, we don't use these
 913                  * except maybe the count
 914                  */
 915                 SCTP_INP_WLOCK(inp);
 916                 SCTP_INP_READ_LOCK(inp);
 917                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 918                 SCTP_INP_READ_UNLOCK(inp);
 919                 SCTP_INP_WUNLOCK(inp);
 920                 so->so_rcv.sb_cc = 0;
 921                 so->so_rcv.sb_mbcnt = 0;
 922                 so->so_rcv.sb_mb = NULL;
 923         }
 924         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 925                 /*
 926                  * First make sure the sb will be happy, we don't use these
 927                  * except maybe the count
 928                  */
 929                 so->so_snd.sb_cc = 0;
 930                 so->so_snd.sb_mbcnt = 0;
 931                 so->so_snd.sb_mb = NULL;
 932
 933         }
 934         return (0);
 935 }
 936
 937 int
 938 sctp_shutdown(struct socket *so)
 939 {
 940         struct sctp_inpcb *inp;
 941
 942         inp = (struct sctp_inpcb *)so->so_pcb;
 943         if (inp == NULL) {
 944                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 945                 return (EINVAL);
 946         }
 947         SCTP_INP_RLOCK(inp);
 948         /* For UDP model this is a invalid call */
 949         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 950             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 951                 /* Restore the flags that the soshutdown took away. */
 952                 SOCKBUF_LOCK(&so->so_rcv);
 953                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 954                 SOCKBUF_UNLOCK(&so->so_rcv);
 955                 /* This proc will wakeup for read and do nothing (I hope) */
 956                 SCTP_INP_RUNLOCK(inp);
 957                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 958                 return (EOPNOTSUPP);
 959         }
 960         /*
 961          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 962          * or SHUT_RDWR. This means we put the shutdown flag against it.
 963          */
 964         {
 965                 struct sctp_tcb *stcb;
 966                 struct sctp_association *asoc;
 967
 968                 if ((so->so_state &
 969                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 970                         SCTP_INP_RUNLOCK(inp);
 971                         return (ENOTCONN);
 972                 }
 973                 socantsendmore(so);
 974
 975                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 976                 if (stcb == NULL) {
 977                         /*
 978                          * Ok we hit the case that the shutdown call was
 979                          * made after an abort or something. Nothing to do
 980                          * now.
 981                          */
 982                         SCTP_INP_RUNLOCK(inp);
 983                         return (0);
 984                 }
 985                 SCTP_TCB_LOCK(stcb);
 986                 asoc = &stcb->asoc;
 987                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 988                     TAILQ_EMPTY(&asoc->sent_queue) &&
 989                     (asoc->stream_queue_cnt == 0)) {
 990                         if (asoc->locked_on_sending) {
 991                                 goto abort_anyway;
 992                         }
 993                         /* there is nothing queued to send, so I'm done... */
 994                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 995                                 /* only send SHUTDOWN the first time through */
 996                                 struct sctp_nets *netp;
 997
 998                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 999                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1000                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1001                                 }
1002                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1003                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1004                                 sctp_stop_timers_for_shutdown(stcb);
1005                                 if (stcb->asoc.alternate) {
1006                                         netp = stcb->asoc.alternate;
1007                                 } else {
1008                                         netp = stcb->asoc.primary_destination;
1009                                 }
1010                                 sctp_send_shutdown(stcb, netp);
1011                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1012                                     stcb->sctp_ep, stcb, netp);
1013                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1014                                     stcb->sctp_ep, stcb, netp);
1015                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1016                         }
1017                 } else {
1018                         /*
1019                          * we still got (or just got) data to send, so set
1020                          * SHUTDOWN_PENDING
1021                          */
1022                         struct sctp_nets *netp;
1023
1024                         if (stcb->asoc.alternate) {
1025                                 netp = stcb->asoc.alternate;
1026                         } else {
1027                                 netp = stcb->asoc.primary_destination;
1028                         }
1029
1030                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1031                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1032                             netp);
1033
1034                         if (asoc->locked_on_sending) {
1035                                 /* Locked to send out the data */
1036                                 struct sctp_stream_queue_pending *sp;
1037
1038                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1039                                 if (sp == NULL) {
1040                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1041                                             asoc->locked_on_sending->stream_no);
1042                                 } else {
1043                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1044                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1045                                         }
1046                                 }
1047                         }
1048                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1049                             TAILQ_EMPTY(&asoc->sent_queue) &&
1050                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1051                                 struct mbuf *op_err;
1052
1053                 abort_anyway:
1054                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1055                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1056                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1057                                     op_err, SCTP_SO_LOCKED);
1058                                 goto skip_unlock;
1059                         } else {
1060                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1061                         }
1062                 }
1063                 SCTP_TCB_UNLOCK(stcb);
1064         }
1065 skip_unlock:
1066         SCTP_INP_RUNLOCK(inp);
1067         return (0);
1068 }
1069
1070 /*
1071  * copies a "user" presentable address and removes embedded scope, etc.
1072  * returns 0 on success, 1 on error
1073  */
1074 static uint32_t
1075 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1076 {
1077 #ifdef INET6
1078         struct sockaddr_in6 lsa6;
1079
1080         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1081             &lsa6);
1082 #endif
1083         memcpy(ss, sa, sa->sa_len);
1084         return (0);
1085 }
1086
1087
1088
1089 /*
1090  * NOTE: assumes addr lock is held
1091  */
1092 static size_t
1093 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1094     struct sctp_tcb *stcb,
1095     size_t limit,
1096     struct sockaddr_storage *sas,
1097     uint32_t vrf_id)
1098 {
1099         struct sctp_ifn *sctp_ifn;
1100         struct sctp_ifa *sctp_ifa;
1101         size_t actual;
1102         int loopback_scope;
1103
1104 #if defined(INET)
1105         int ipv4_local_scope, ipv4_addr_legal;
1106
1107 #endif
1108 #if defined(INET6)
1109         int local_scope, site_scope, ipv6_addr_legal;
1110
1111 #endif
1112         struct sctp_vrf *vrf;
1113
1114         actual = 0;
1115         if (limit <= 0)
1116                 return (actual);
1117
1118         if (stcb) {
1119                 /* Turn on all the appropriate scope */
1120                 loopback_scope = stcb->asoc.scope.loopback_scope;
1121 #if defined(INET)
1122                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1123                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1124 #endif
1125 #if defined(INET6)
1126                 local_scope = stcb->asoc.scope.local_scope;
1127                 site_scope = stcb->asoc.scope.site_scope;
1128                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1129 #endif
1130         } else {
1131                 /* Use generic values for endpoints. */
1132                 loopback_scope = 1;
1133 #if defined(INET)
1134                 ipv4_local_scope = 1;
1135 #endif
1136 #if defined(INET6)
1137                 local_scope = 1;
1138                 site_scope = 1;
1139 #endif
1140                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1141 #if defined(INET6)
1142                         ipv6_addr_legal = 1;
1143 #endif
1144 #if defined(INET)
1145                         if (SCTP_IPV6_V6ONLY(inp)) {
1146                                 ipv4_addr_legal = 0;
1147                         } else {
1148                                 ipv4_addr_legal = 1;
1149                         }
1150 #endif
1151                 } else {
1152 #if defined(INET6)
1153                         ipv6_addr_legal = 0;
1154 #endif
1155 #if defined(INET)
1156                         ipv4_addr_legal = 1;
1157 #endif
1158                 }
1159         }
1160         vrf = sctp_find_vrf(vrf_id);
1161         if (vrf == NULL) {
1162                 return (0);
1163         }
1164         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1165                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1166                         if ((loopback_scope == 0) &&
1167                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1168                                 /* Skip loopback if loopback_scope not set */
1169                                 continue;
1170                         }
1171                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1172                                 if (stcb) {
1173                                         /*
1174                                          * For the BOUND-ALL case, the list
1175                                          * associated with a TCB is Always
1176                                          * considered a reverse list.. i.e.
1177                                          * it lists addresses that are NOT
1178                                          * part of the association. If this
1179                                          * is one of those we must skip it.
1180                                          */
1181                                         if (sctp_is_addr_restricted(stcb,
1182                                             sctp_ifa)) {
1183                                                 continue;
1184                                         }
1185                                 }
1186                                 switch (sctp_ifa->address.sa.sa_family) {
1187 #ifdef INET
1188                                 case AF_INET:
1189                                         if (ipv4_addr_legal) {
1190                                                 struct sockaddr_in *sin;
1191
1192                                                 sin = &sctp_ifa->address.sin;
1193                                                 if (sin->sin_addr.s_addr == 0) {
1194                                                         /*
1195                                                          * we skip
1196                                                          * unspecifed
1197                                                          * addresses
1198                                                          */
1199                                                         continue;
1200                                                 }
1201                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1202                                                     &sin->sin_addr) != 0) {
1203                                                         continue;
1204                                                 }
1205                                                 if ((ipv4_local_scope == 0) &&
1206                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1207                                                         continue;
1208                                                 }
1209 #ifdef INET6
1210                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1211                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1212                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1213                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1214                                                         actual += sizeof(struct sockaddr_in6);
1215                                                 } else {
1216 #endif
1217                                                         memcpy(sas, sin, sizeof(*sin));
1218                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1219                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1220                                                         actual += sizeof(*sin);
1221 #ifdef INET6
1222                                                 }
1223 #endif
1224                                                 if (actual >= limit) {
1225                                                         return (actual);
1226                                                 }
1227                                         } else {
1228                                                 continue;
1229                                         }
1230                                         break;
1231 #endif
1232 #ifdef INET6
1233                                 case AF_INET6:
1234                                         if (ipv6_addr_legal) {
1235                                                 struct sockaddr_in6 *sin6;
1236
1237                                                 sin6 = &sctp_ifa->address.sin6;
1238                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1239                                                         /*
1240                                                          * we skip
1241                                                          * unspecifed
1242                                                          * addresses
1243                                                          */
1244                                                         continue;
1245                                                 }
1246                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1247                                                     &sin6->sin6_addr) != 0) {
1248                                                         continue;
1249                                                 }
1250                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1251                                                         if (local_scope == 0)
1252                                                                 continue;
1253                                                         if (sin6->sin6_scope_id == 0) {
1254                                                                 if (sa6_recoverscope(sin6) != 0)
1255                                                                         /*
1256                                                                          *
1257                                                                          * bad
1258                                                                          *
1259                                                                          * li
1260                                                                          * nk
1261                                                                          *
1262                                                                          * loc
1263                                                                          * al
1264                                                                          *
1265                                                                          * add
1266                                                                          * re
1267                                                                          * ss
1268                                                                          * */
1269                                                                         continue;
1270                                                         }
1271                                                 }
1272                                                 if ((site_scope == 0) &&
1273                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1274                                                         continue;
1275                                                 }
1276                                                 memcpy(sas, sin6, sizeof(*sin6));
1277                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1278                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1279                                                 actual += sizeof(*sin6);
1280                                                 if (actual >= limit) {
1281                                                         return (actual);
1282                                                 }
1283                                         } else {
1284                                                 continue;
1285                                         }
1286                                         break;
1287 #endif
1288                                 default:
1289                                         /* TSNH */
1290                                         break;
1291                                 }
1292                         }
1293                 }
1294         } else {
1295                 struct sctp_laddr *laddr;
1296
1297                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1298                         if (stcb) {
1299                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1300                                         continue;
1301                                 }
1302                         }
1303                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1304                                 continue;
1305                         switch (laddr->ifa->address.sa.sa_family) {
1306 #ifdef INET
1307                         case AF_INET:
1308                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1309                                 break;
1310 #endif
1311 #ifdef INET6
1312                         case AF_INET6:
1313                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1314                                 break;
1315 #endif
1316                         default:
1317                                 /* TSNH */
1318                                 break;
1319                         }
1320                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1321                             laddr->ifa->address.sa.sa_len);
1322                         actual += laddr->ifa->address.sa.sa_len;
1323                         if (actual >= limit) {
1324                                 return (actual);
1325                         }
1326                 }
1327         }
1328         return (actual);
1329 }
1330
1331 static size_t
1332 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1333     struct sctp_tcb *stcb,
1334     size_t limit,
1335     struct sockaddr_storage *sas)
1336 {
1337         size_t size = 0;
1338
1339         SCTP_IPI_ADDR_RLOCK();
1340         /* fill up addresses for the endpoint's default vrf */
1341         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1342             inp->def_vrf_id);
1343         SCTP_IPI_ADDR_RUNLOCK();
1344         return (size);
1345 }
1346
1347 /*
1348  * NOTE: assumes addr lock is held
1349  */
1350 static int
1351 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1352 {
1353         int cnt = 0;
1354         struct sctp_vrf *vrf = NULL;
1355
1356         /*
1357          * In both sub-set bound an bound_all cases we return the MAXIMUM
1358          * number of addresses that you COULD get. In reality the sub-set
1359          * bound may have an exclusion list for a given TCB OR in the
1360          * bound-all case a TCB may NOT include the loopback or other
1361          * addresses as well.
1362          */
1363         vrf = sctp_find_vrf(vrf_id);
1364         if (vrf == NULL) {
1365                 return (0);
1366         }
1367         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1368                 struct sctp_ifn *sctp_ifn;
1369                 struct sctp_ifa *sctp_ifa;
1370
1371                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1372                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1373                                 /* Count them if they are the right type */
1374                                 switch (sctp_ifa->address.sa.sa_family) {
1375 #ifdef INET
1376                                 case AF_INET:
1377 #ifdef INET6
1378                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1379                                                 cnt += sizeof(struct sockaddr_in6);
1380                                         else
1381                                                 cnt += sizeof(struct sockaddr_in);
1382 #else
1383                                         cnt += sizeof(struct sockaddr_in);
1384 #endif
1385                                         break;
1386 #endif
1387 #ifdef INET6
1388                                 case AF_INET6:
1389                                         cnt += sizeof(struct sockaddr_in6);
1390                                         break;
1391 #endif
1392                                 default:
1393                                         break;
1394                                 }
1395                         }
1396                 }
1397         } else {
1398                 struct sctp_laddr *laddr;
1399
1400                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1401                         switch (laddr->ifa->address.sa.sa_family) {
1402 #ifdef INET
1403                         case AF_INET:
1404 #ifdef INET6
1405                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1406                                         cnt += sizeof(struct sockaddr_in6);
1407                                 else
1408                                         cnt += sizeof(struct sockaddr_in);
1409 #else
1410                                 cnt += sizeof(struct sockaddr_in);
1411 #endif
1412                                 break;
1413 #endif
1414 #ifdef INET6
1415                         case AF_INET6:
1416                                 cnt += sizeof(struct sockaddr_in6);
1417                                 break;
1418 #endif
1419                         default:
1420                                 break;
1421                         }
1422                 }
1423         }
1424         return (cnt);
1425 }
1426
1427 static int
1428 sctp_count_max_addresses(struct sctp_inpcb *inp)
1429 {
1430         int cnt = 0;
1431
1432         SCTP_IPI_ADDR_RLOCK();
1433         /* count addresses for the endpoint's default VRF */
1434         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1435         SCTP_IPI_ADDR_RUNLOCK();
1436         return (cnt);
1437 }
1438
1439 static int
1440 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1441     size_t optsize, void *p, int delay)
1442 {
1443         int error = 0;
1444         int creat_lock_on = 0;
1445         struct sctp_tcb *stcb = NULL;
1446         struct sockaddr *sa;
1447         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1448         uint32_t vrf_id;
1449         int bad_addresses = 0;
1450         sctp_assoc_t *a_id;
1451
1452         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1453
1454         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1455             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1456                 /* We are already connected AND the TCP model */
1457                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1458                 return (EADDRINUSE);
1459         }
1460         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1461             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1462                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1463                 return (EINVAL);
1464         }
1465         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1466                 SCTP_INP_RLOCK(inp);
1467                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1468                 SCTP_INP_RUNLOCK(inp);
1469         }
1470         if (stcb) {
1471                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1472                 return (EALREADY);
1473         }
1474         SCTP_INP_INCR_REF(inp);
1475         SCTP_ASOC_CREATE_LOCK(inp);
1476         creat_lock_on = 1;
1477         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1478             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1479                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1480                 error = EFAULT;
1481                 goto out_now;
1482         }
1483         totaddrp = (int *)optval;
1484         totaddr = *totaddrp;
1485         sa = (struct sockaddr *)(totaddrp + 1);
1486         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1487         if ((stcb != NULL) || bad_addresses) {
1488                 /* Already have or am bring up an association */
1489                 SCTP_ASOC_CREATE_UNLOCK(inp);
1490                 creat_lock_on = 0;
1491                 if (stcb)
1492                         SCTP_TCB_UNLOCK(stcb);
1493                 if (bad_addresses == 0) {
1494                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1495                         error = EALREADY;
1496                 }
1497                 goto out_now;
1498         }
1499 #ifdef INET6
1500         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1501             (num_v6 > 0)) {
1502                 error = EINVAL;
1503                 goto out_now;
1504         }
1505         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1506             (num_v4 > 0)) {
1507                 struct in6pcb *inp6;
1508
1509                 inp6 = (struct in6pcb *)inp;
1510                 if (SCTP_IPV6_V6ONLY(inp6)) {
1511                         /*
1512                          * if IPV6_V6ONLY flag, ignore connections destined
1513                          * to a v4 addr or v4-mapped addr
1514                          */
1515                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1516                         error = EINVAL;
1517                         goto out_now;
1518                 }
1519         }
1520 #endif                          /* INET6 */
1521         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1522             SCTP_PCB_FLAGS_UNBOUND) {
1523                 /* Bind a ephemeral port */
1524                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1525                 if (error) {
1526                         goto out_now;
1527                 }
1528         }
1529         /* FIX ME: do we want to pass in a vrf on the connect call? */
1530         vrf_id = inp->def_vrf_id;
1531
1532
1533         /* We are GOOD to go */
1534         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1535             (struct thread *)p
1536             );
1537         if (stcb == NULL) {
1538                 /* Gak! no memory */
1539                 goto out_now;
1540         }
1541         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1542                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1543                 /* Set the connected flag so we can queue data */
1544                 soisconnecting(so);
1545         }
1546         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1547         /* move to second address */
1548         switch (sa->sa_family) {
1549 #ifdef INET
1550         case AF_INET:
1551                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1552                 break;
1553 #endif
1554 #ifdef INET6
1555         case AF_INET6:
1556                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1557                 break;
1558 #endif
1559         default:
1560                 break;
1561         }
1562
1563         error = 0;
1564         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1565         /* Fill in the return id */
1566         if (error) {
1567                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1568                 goto out_now;
1569         }
1570         a_id = (sctp_assoc_t *) optval;
1571         *a_id = sctp_get_associd(stcb);
1572
1573         /* initialize authentication parameters for the assoc */
1574         sctp_initialize_auth_params(inp, stcb);
1575
1576         if (delay) {
1577                 /* doing delayed connection */
1578                 stcb->asoc.delayed_connection = 1;
1579                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1580         } else {
1581                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1582                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1583         }
1584         SCTP_TCB_UNLOCK(stcb);
1585         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1586                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1587                 /* Set the connected flag so we can queue data */
1588                 soisconnecting(so);
1589         }
1590 out_now:
1591         if (creat_lock_on) {
1592                 SCTP_ASOC_CREATE_UNLOCK(inp);
1593         }
1594         SCTP_INP_DECR_REF(inp);
1595         return (error);
1596 }
1597
1598 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1599         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1600             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1601                 SCTP_INP_RLOCK(inp); \
1602                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1603                 if (stcb) { \
1604                         SCTP_TCB_LOCK(stcb); \
1605                 } \
1606                 SCTP_INP_RUNLOCK(inp); \
1607         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1608                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1609                 if (stcb == NULL) { \
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1611                         error = ENOENT; \
1612                         break; \
1613                 } \
1614         } else { \
1615                 stcb = NULL; \
1616         } \
1617   }
1618
1619
1620 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1621         if (size < sizeof(type)) { \
1622                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1623                 error = EINVAL; \
1624                 break; \
1625         } else { \
1626                 destp = (type *)srcp; \
1627         } \
1628       }
1629
1630 static int
1631 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1632     void *p)
1633 {
1634         struct sctp_inpcb *inp = NULL;
1635         int error, val = 0;
1636         struct sctp_tcb *stcb = NULL;
1637
1638         if (optval == NULL) {
1639                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1640                 return (EINVAL);
1641         }
1642         inp = (struct sctp_inpcb *)so->so_pcb;
1643         if (inp == NULL) {
1644                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1645                 return EINVAL;
1646         }
1647         error = 0;
1648
1649         switch (optname) {
1650         case SCTP_NODELAY:
1651         case SCTP_AUTOCLOSE:
1652         case SCTP_EXPLICIT_EOR:
1653         case SCTP_AUTO_ASCONF:
1654         case SCTP_DISABLE_FRAGMENTS:
1655         case SCTP_I_WANT_MAPPED_V4_ADDR:
1656         case SCTP_USE_EXT_RCVINFO:
1657                 SCTP_INP_RLOCK(inp);
1658                 switch (optname) {
1659                 case SCTP_DISABLE_FRAGMENTS:
1660                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1661                         break;
1662                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1663                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1664                         break;
1665                 case SCTP_AUTO_ASCONF:
1666                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1667                                 /* only valid for bound all sockets */
1668                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1669                         } else {
1670                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1671                                 error = EINVAL;
1672                                 goto flags_out;
1673                         }
1674                         break;
1675                 case SCTP_EXPLICIT_EOR:
1676                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1677                         break;
1678                 case SCTP_NODELAY:
1679                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1680                         break;
1681                 case SCTP_USE_EXT_RCVINFO:
1682                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1683                         break;
1684                 case SCTP_AUTOCLOSE:
1685                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1686                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1687                         else
1688                                 val = 0;
1689                         break;
1690
1691                 default:
1692                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1693                         error = ENOPROTOOPT;
1694                 }               /* end switch (sopt->sopt_name) */
1695                 if (*optsize < sizeof(val)) {
1696                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1697                         error = EINVAL;
1698                 }
1699 flags_out:
1700                 SCTP_INP_RUNLOCK(inp);
1701                 if (error == 0) {
1702                         /* return the option value */
1703                         *(int *)optval = val;
1704                         *optsize = sizeof(val);
1705                 }
1706                 break;
1707         case SCTP_GET_PACKET_LOG:
1708                 {
1709 #ifdef  SCTP_PACKET_LOGGING
1710                         uint8_t *target;
1711                         int ret;
1712
1713                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1714                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1715                         *optsize = ret;
1716 #else
1717                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1718                         error = EOPNOTSUPP;
1719 #endif
1720                         break;
1721                 }
1722         case SCTP_REUSE_PORT:
1723                 {
1724                         uint32_t *value;
1725
1726                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1727                                 /* Can't do this for a 1-m socket */
1728                                 error = EINVAL;
1729                                 break;
1730                         }
1731                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1732                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1733                         *optsize = sizeof(uint32_t);
1734                         break;
1735                 }
1736         case SCTP_PARTIAL_DELIVERY_POINT:
1737                 {
1738                         uint32_t *value;
1739
1740                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1741                         *value = inp->partial_delivery_point;
1742                         *optsize = sizeof(uint32_t);
1743                         break;
1744                 }
1745         case SCTP_FRAGMENT_INTERLEAVE:
1746                 {
1747                         uint32_t *value;
1748
1749                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1750                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1751                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1752                                         *value = SCTP_FRAG_LEVEL_2;
1753                                 } else {
1754                                         *value = SCTP_FRAG_LEVEL_1;
1755                                 }
1756                         } else {
1757                                 *value = SCTP_FRAG_LEVEL_0;
1758                         }
1759                         *optsize = sizeof(uint32_t);
1760                         break;
1761                 }
1762         case SCTP_CMT_ON_OFF:
1763                 {
1764                         struct sctp_assoc_value *av;
1765
1766                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1767                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1768                         if (stcb) {
1769                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1770                                 SCTP_TCB_UNLOCK(stcb);
1771                         } else {
1772                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1773                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1774                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1775                                         SCTP_INP_RLOCK(inp);
1776                                         av->assoc_value = inp->sctp_cmt_on_off;
1777                                         SCTP_INP_RUNLOCK(inp);
1778                                 } else {
1779                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1780                                         error = EINVAL;
1781                                 }
1782                         }
1783                         if (error == 0) {
1784                                 *optsize = sizeof(struct sctp_assoc_value);
1785                         }
1786                         break;
1787                 }
1788         case SCTP_PLUGGABLE_CC:
1789                 {
1790                         struct sctp_assoc_value *av;
1791
1792                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1793                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1794                         if (stcb) {
1795                                 av->assoc_value = stcb->asoc.congestion_control_module;
1796                                 SCTP_TCB_UNLOCK(stcb);
1797                         } else {
1798                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1799                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1800                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1801                                         SCTP_INP_RLOCK(inp);
1802                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1803                                         SCTP_INP_RUNLOCK(inp);
1804                                 } else {
1805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1806                                         error = EINVAL;
1807                                 }
1808                         }
1809                         if (error == 0) {
1810                                 *optsize = sizeof(struct sctp_assoc_value);
1811                         }
1812                         break;
1813                 }
1814         case SCTP_CC_OPTION:
1815                 {
1816                         struct sctp_cc_option *cc_opt;
1817
1818                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1819                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1820                         if (stcb == NULL) {
1821                                 error = EINVAL;
1822                         } else {
1823                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1824                                         error = ENOTSUP;
1825                                 } else {
1826                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1827                                         *optsize = sizeof(struct sctp_cc_option);
1828                                 }
1829                                 SCTP_TCB_UNLOCK(stcb);
1830                         }
1831                         break;
1832                 }
1833         case SCTP_PLUGGABLE_SS:
1834                 {
1835                         struct sctp_assoc_value *av;
1836
1837                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1838                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1839                         if (stcb) {
1840                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1841                                 SCTP_TCB_UNLOCK(stcb);
1842                         } else {
1843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1845                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1846                                         SCTP_INP_RLOCK(inp);
1847                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1848                                         SCTP_INP_RUNLOCK(inp);
1849                                 } else {
1850                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1851                                         error = EINVAL;
1852                                 }
1853                         }
1854                         if (error == 0) {
1855                                 *optsize = sizeof(struct sctp_assoc_value);
1856                         }
1857                         break;
1858                 }
1859         case SCTP_SS_VALUE:
1860                 {
1861                         struct sctp_stream_value *av;
1862
1863                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1864                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1865                         if (stcb) {
1866                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1867                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1868                                     &av->stream_value) < 0)) {
1869                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1870                                         error = EINVAL;
1871                                 } else {
1872                                         *optsize = sizeof(struct sctp_stream_value);
1873                                 }
1874                                 SCTP_TCB_UNLOCK(stcb);
1875                         } else {
1876                                 /*
1877                                  * Can't get stream value without
1878                                  * association
1879                                  */
1880                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1881                                 error = EINVAL;
1882                         }
1883                         break;
1884                 }
1885         case SCTP_GET_ADDR_LEN:
1886                 {
1887                         struct sctp_assoc_value *av;
1888
1889                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1890                         error = EINVAL;
1891 #ifdef INET
1892                         if (av->assoc_value == AF_INET) {
1893                                 av->assoc_value = sizeof(struct sockaddr_in);
1894                                 error = 0;
1895                         }
1896 #endif
1897 #ifdef INET6
1898                         if (av->assoc_value == AF_INET6) {
1899                                 av->assoc_value = sizeof(struct sockaddr_in6);
1900                                 error = 0;
1901                         }
1902 #endif
1903                         if (error) {
1904                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1905                         } else {
1906                                 *optsize = sizeof(struct sctp_assoc_value);
1907                         }
1908                         break;
1909                 }
1910         case SCTP_GET_ASSOC_NUMBER:
1911                 {
1912                         uint32_t *value, cnt;
1913
1914                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1915                         cnt = 0;
1916                         SCTP_INP_RLOCK(inp);
1917                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1918                                 cnt++;
1919                         }
1920                         SCTP_INP_RUNLOCK(inp);
1921                         *value = cnt;
1922                         *optsize = sizeof(uint32_t);
1923                         break;
1924                 }
1925         case SCTP_GET_ASSOC_ID_LIST:
1926                 {
1927                         struct sctp_assoc_ids *ids;
1928                         unsigned int at, limit;
1929
1930                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1931                         at = 0;
1932                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1933                         SCTP_INP_RLOCK(inp);
1934                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1935                                 if (at < limit) {
1936                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1937                                 } else {
1938                                         error = EINVAL;
1939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1940                                         break;
1941                                 }
1942                         }
1943                         SCTP_INP_RUNLOCK(inp);
1944                         if (error == 0) {
1945                                 ids->gaids_number_of_ids = at;
1946                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1947                         }
1948                         break;
1949                 }
1950         case SCTP_CONTEXT:
1951                 {
1952                         struct sctp_assoc_value *av;
1953
1954                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1955                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1956
1957                         if (stcb) {
1958                                 av->assoc_value = stcb->asoc.context;
1959                                 SCTP_TCB_UNLOCK(stcb);
1960                         } else {
1961                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1962                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1963                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1964                                         SCTP_INP_RLOCK(inp);
1965                                         av->assoc_value = inp->sctp_context;
1966                                         SCTP_INP_RUNLOCK(inp);
1967                                 } else {
1968                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1969                                         error = EINVAL;
1970                                 }
1971                         }
1972                         if (error == 0) {
1973                                 *optsize = sizeof(struct sctp_assoc_value);
1974                         }
1975                         break;
1976                 }
1977         case SCTP_VRF_ID:
1978                 {
1979                         uint32_t *default_vrfid;
1980
1981                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1982                         *default_vrfid = inp->def_vrf_id;
1983                         *optsize = sizeof(uint32_t);
1984                         break;
1985                 }
1986         case SCTP_GET_ASOC_VRF:
1987                 {
1988                         struct sctp_assoc_value *id;
1989
1990                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1991                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1992                         if (stcb == NULL) {
1993                                 error = EINVAL;
1994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1995                         } else {
1996                                 id->assoc_value = stcb->asoc.vrf_id;
1997                                 *optsize = sizeof(struct sctp_assoc_value);
1998                         }
1999                         break;
2000                 }
2001         case SCTP_GET_VRF_IDS:
2002                 {
2003                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2004                         error = EOPNOTSUPP;
2005                         break;
2006                 }
2007         case SCTP_GET_NONCE_VALUES:
2008                 {
2009                         struct sctp_get_nonce_values *gnv;
2010
2011                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2012                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2013
2014                         if (stcb) {
2015                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2016                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2017                                 SCTP_TCB_UNLOCK(stcb);
2018                                 *optsize = sizeof(struct sctp_get_nonce_values);
2019                         } else {
2020                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2021                                 error = ENOTCONN;
2022                         }
2023                         break;
2024                 }
2025         case SCTP_DELAYED_SACK:
2026                 {
2027                         struct sctp_sack_info *sack;
2028
2029                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2030                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2031                         if (stcb) {
2032                                 sack->sack_delay = stcb->asoc.delayed_ack;
2033                                 sack->sack_freq = stcb->asoc.sack_freq;
2034                                 SCTP_TCB_UNLOCK(stcb);
2035                         } else {
2036                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2037                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2038                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2039                                         SCTP_INP_RLOCK(inp);
2040                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2041                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2042                                         SCTP_INP_RUNLOCK(inp);
2043                                 } else {
2044                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2045                                         error = EINVAL;
2046                                 }
2047                         }
2048                         if (error == 0) {
2049                                 *optsize = sizeof(struct sctp_sack_info);
2050                         }
2051                         break;
2052                 }
2053         case SCTP_GET_SNDBUF_USE:
2054                 {
2055                         struct sctp_sockstat *ss;
2056
2057                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2058                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2059
2060                         if (stcb) {
2061                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2062                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2063                                     stcb->asoc.size_on_all_streams);
2064                                 SCTP_TCB_UNLOCK(stcb);
2065                                 *optsize = sizeof(struct sctp_sockstat);
2066                         } else {
2067                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2068                                 error = ENOTCONN;
2069                         }
2070                         break;
2071                 }
2072         case SCTP_MAX_BURST:
2073                 {
2074                         struct sctp_assoc_value *av;
2075
2076                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2077                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2078
2079                         if (stcb) {
2080                                 av->assoc_value = stcb->asoc.max_burst;
2081                                 SCTP_TCB_UNLOCK(stcb);
2082                         } else {
2083                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2084                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2085                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2086                                         SCTP_INP_RLOCK(inp);
2087                                         av->assoc_value = inp->sctp_ep.max_burst;
2088                                         SCTP_INP_RUNLOCK(inp);
2089                                 } else {
2090                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2091                                         error = EINVAL;
2092                                 }
2093                         }
2094                         if (error == 0) {
2095                                 *optsize = sizeof(struct sctp_assoc_value);
2096                         }
2097                         break;
2098                 }
2099         case SCTP_MAXSEG:
2100                 {
2101                         struct sctp_assoc_value *av;
2102                         int ovh;
2103
2104                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2105                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2106
2107                         if (stcb) {
2108                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2109                                 SCTP_TCB_UNLOCK(stcb);
2110                         } else {
2111                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2112                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2113                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2114                                         SCTP_INP_RLOCK(inp);
2115                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2116                                                 ovh = SCTP_MED_OVERHEAD;
2117                                         } else {
2118                                                 ovh = SCTP_MED_V4_OVERHEAD;
2119                                         }
2120                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2121                                                 av->assoc_value = 0;
2122                                         else
2123                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2124                                         SCTP_INP_RUNLOCK(inp);
2125                                 } else {
2126                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2127                                         error = EINVAL;
2128                                 }
2129                         }
2130                         if (error == 0) {
2131                                 *optsize = sizeof(struct sctp_assoc_value);
2132                         }
2133                         break;
2134                 }
2135         case SCTP_GET_STAT_LOG:
2136                 error = sctp_fill_stat_log(optval, optsize);
2137                 break;
2138         case SCTP_EVENTS:
2139                 {
2140                         struct sctp_event_subscribe *events;
2141
2142                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2143                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2144                         SCTP_INP_RLOCK(inp);
2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2146                                 events->sctp_data_io_event = 1;
2147
2148                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2149                                 events->sctp_association_event = 1;
2150
2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2152                                 events->sctp_address_event = 1;
2153
2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2155                                 events->sctp_send_failure_event = 1;
2156
2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2158                                 events->sctp_peer_error_event = 1;
2159
2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2161                                 events->sctp_shutdown_event = 1;
2162
2163                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2164                                 events->sctp_partial_delivery_event = 1;
2165
2166                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2167                                 events->sctp_adaptation_layer_event = 1;
2168
2169                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2170                                 events->sctp_authentication_event = 1;
2171
2172                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2173                                 events->sctp_sender_dry_event = 1;
2174
2175                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2176                                 events->sctp_stream_reset_event = 1;
2177                         SCTP_INP_RUNLOCK(inp);
2178                         *optsize = sizeof(struct sctp_event_subscribe);
2179                         break;
2180                 }
2181         case SCTP_ADAPTATION_LAYER:
2182                 {
2183                         uint32_t *value;
2184
2185                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2186
2187                         SCTP_INP_RLOCK(inp);
2188                         *value = inp->sctp_ep.adaptation_layer_indicator;
2189                         SCTP_INP_RUNLOCK(inp);
2190                         *optsize = sizeof(uint32_t);
2191                         break;
2192                 }
2193         case SCTP_SET_INITIAL_DBG_SEQ:
2194                 {
2195                         uint32_t *value;
2196
2197                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2198                         SCTP_INP_RLOCK(inp);
2199                         *value = inp->sctp_ep.initial_sequence_debug;
2200                         SCTP_INP_RUNLOCK(inp);
2201                         *optsize = sizeof(uint32_t);
2202                         break;
2203                 }
2204         case SCTP_GET_LOCAL_ADDR_SIZE:
2205                 {
2206                         uint32_t *value;
2207
2208                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2209                         SCTP_INP_RLOCK(inp);
2210                         *value = sctp_count_max_addresses(inp);
2211                         SCTP_INP_RUNLOCK(inp);
2212                         *optsize = sizeof(uint32_t);
2213                         break;
2214                 }
2215         case SCTP_GET_REMOTE_ADDR_SIZE:
2216                 {
2217                         uint32_t *value;
2218                         size_t size;
2219                         struct sctp_nets *net;
2220
2221                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2222                         /* FIXME MT: change to sctp_assoc_value? */
2223                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2224
2225                         if (stcb) {
2226                                 size = 0;
2227                                 /* Count the sizes */
2228                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2229                                         switch (net->ro._l_addr.sa.sa_family) {
2230 #ifdef INET
2231                                         case AF_INET:
2232 #ifdef INET6
2233                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2234                                                         size += sizeof(struct sockaddr_in6);
2235                                                 } else {
2236                                                         size += sizeof(struct sockaddr_in);
2237                                                 }
2238 #else
2239                                                 size += sizeof(struct sockaddr_in);
2240 #endif
2241                                                 break;
2242 #endif
2243 #ifdef INET6
2244                                         case AF_INET6:
2245                                                 size += sizeof(struct sockaddr_in6);
2246                                                 break;
2247 #endif
2248                                         default:
2249                                                 break;
2250                                         }
2251                                 }
2252                                 SCTP_TCB_UNLOCK(stcb);
2253                                 *value = (uint32_t) size;
2254                                 *optsize = sizeof(uint32_t);
2255                         } else {
2256                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2257                                 error = ENOTCONN;
2258                         }
2259                         break;
2260                 }
2261         case SCTP_GET_PEER_ADDRESSES:
2262                 /*
2263                  * Get the address information, an array is passed in to
2264                  * fill up we pack it.
2265                  */
2266                 {
2267                         size_t cpsz, left;
2268                         struct sockaddr_storage *sas;
2269                         struct sctp_nets *net;
2270                         struct sctp_getaddresses *saddr;
2271
2272                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2273                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2274
2275                         if (stcb) {
2276                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2277                                 *optsize = sizeof(struct sctp_getaddresses);
2278                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2279
2280                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2281                                         switch (net->ro._l_addr.sa.sa_family) {
2282 #ifdef INET
2283                                         case AF_INET:
2284 #ifdef INET6
2285                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2286                                                         cpsz = sizeof(struct sockaddr_in6);
2287                                                 } else {
2288                                                         cpsz = sizeof(struct sockaddr_in);
2289                                                 }
2290 #else
2291                                                 cpsz = sizeof(struct sockaddr_in);
2292 #endif
2293                                                 break;
2294 #endif
2295 #ifdef INET6
2296                                         case AF_INET6:
2297                                                 cpsz = sizeof(struct sockaddr_in6);
2298                                                 break;
2299 #endif
2300                                         default:
2301                                                 cpsz = 0;
2302                                                 break;
2303                                         }
2304                                         if (cpsz == 0) {
2305                                                 break;
2306                                         }
2307                                         if (left < cpsz) {
2308                                                 /* not enough room. */
2309                                                 break;
2310                                         }
2311 #if defined(INET) && defined(INET6)
2312                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2313                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2314                                                 /* Must map the address */
2315                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2316                                                     (struct sockaddr_in6 *)sas);
2317                                         } else {
2318                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2319                                         }
2320 #else
2321                                         memcpy(sas, &net->ro._l_addr, cpsz);
2322 #endif
2323                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2324
2325                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2326                                         left -= cpsz;
2327                                         *optsize += cpsz;
2328                                 }
2329                                 SCTP_TCB_UNLOCK(stcb);
2330                         } else {
2331                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2332                                 error = ENOENT;
2333                         }
2334                         break;
2335                 }
2336         case SCTP_GET_LOCAL_ADDRESSES:
2337                 {
2338                         size_t limit, actual;
2339                         struct sockaddr_storage *sas;
2340                         struct sctp_getaddresses *saddr;
2341
2342                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2343                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2344
2345                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2346                         limit = *optsize - sizeof(sctp_assoc_t);
2347                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2348                         if (stcb) {
2349                                 SCTP_TCB_UNLOCK(stcb);
2350                         }
2351                         *optsize = sizeof(struct sockaddr_storage) + actual;
2352                         break;
2353                 }
2354         case SCTP_PEER_ADDR_PARAMS:
2355                 {
2356                         struct sctp_paddrparams *paddrp;
2357                         struct sctp_nets *net;
2358                         struct sockaddr *addr;
2359
2360 #if defined(INET) && defined(INET6)
2361                         struct sockaddr_in sin_store;
2362
2363 #endif
2364
2365                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2366                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2367
2368 #if defined(INET) && defined(INET6)
2369                         if (paddrp->spp_address.ss_family == AF_INET6) {
2370                                 struct sockaddr_in6 *sin6;
2371
2372                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2373                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2374                                         in6_sin6_2_sin(&sin_store, sin6);
2375                                         addr = (struct sockaddr *)&sin_store;
2376                                 } else {
2377                                         addr = (struct sockaddr *)&paddrp->spp_address;
2378                                 }
2379                         } else {
2380                                 addr = (struct sockaddr *)&paddrp->spp_address;
2381                         }
2382 #else
2383                         addr = (struct sockaddr *)&paddrp->spp_address;
2384 #endif
2385                         if (stcb != NULL) {
2386                                 net = sctp_findnet(stcb, addr);
2387                         } else {
2388                                 /*
2389                                  * We increment here since
2390                                  * sctp_findassociation_ep_addr() wil do a
2391                                  * decrement if it finds the stcb as long as
2392                                  * the locked tcb (last argument) is NOT a
2393                                  * TCB.. aka NULL.
2394                                  */
2395                                 net = NULL;
2396                                 SCTP_INP_INCR_REF(inp);
2397                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2398                                 if (stcb == NULL) {
2399                                         SCTP_INP_DECR_REF(inp);
2400                                 }
2401                         }
2402                         if ((stcb != NULL) && (net == NULL)) {
2403 #ifdef INET
2404                                 if (addr->sa_family == AF_INET) {
2405                                         struct sockaddr_in *sin;
2406
2407                                         sin = (struct sockaddr_in *)addr;
2408                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2409                                                 error = EINVAL;
2410                                                 SCTP_TCB_UNLOCK(stcb);
2411                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2412                                                 break;
2413                                         }
2414                                 } else
2415 #endif
2416 #ifdef INET6
2417                                 if (addr->sa_family == AF_INET6) {
2418                                         struct sockaddr_in6 *sin6;
2419
2420                                         sin6 = (struct sockaddr_in6 *)addr;
2421                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2422                                                 error = EINVAL;
2423                                                 SCTP_TCB_UNLOCK(stcb);
2424                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2425                                                 break;
2426                                         }
2427                                 } else
2428 #endif
2429                                 {
2430                                         error = EAFNOSUPPORT;
2431                                         SCTP_TCB_UNLOCK(stcb);
2432                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2433                                         break;
2434                                 }
2435                         }
2436                         if (stcb != NULL) {
2437                                 /* Applies to the specific association */
2438                                 paddrp->spp_flags = 0;
2439                                 if (net != NULL) {
2440                                         int ovh;
2441
2442                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2443                                                 ovh = SCTP_MED_OVERHEAD;
2444                                         } else {
2445                                                 ovh = SCTP_MED_V4_OVERHEAD;
2446                                         }
2447
2448                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2449                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2450                                         paddrp->spp_pathmtu = net->mtu - ovh;
2451                                         /* get flags for HB */
2452                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2453                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2454                                         } else {
2455                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2456                                         }
2457                                         /* get flags for PMTU */
2458                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2459                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2460                                         } else {
2461                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2462                                         }
2463                                         if (net->dscp & 0x01) {
2464                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2465                                                 paddrp->spp_flags |= SPP_DSCP;
2466                                         }
2467 #ifdef INET6
2468                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2469                                             (net->flowlabel & 0x80000000)) {
2470                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2471                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2472                                         }
2473 #endif
2474                                 } else {
2475                                         /*
2476                                          * No destination so return default
2477                                          * value
2478                                          */
2479                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2480                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2481                                         if (stcb->asoc.default_dscp & 0x01) {
2482                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2483                                                 paddrp->spp_flags |= SPP_DSCP;
2484                                         }
2485 #ifdef INET6
2486                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2487                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2488                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2489                                         }
2490 #endif
2491                                         /* default settings should be these */
2492                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2493                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2494                                         } else {
2495                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2496                                         }
2497                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2498                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2499                                         } else {
2500                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2501                                         }
2502                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2503                                 }
2504                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2505                                 SCTP_TCB_UNLOCK(stcb);
2506                         } else {
2507                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2508                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2509                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2510                                         /* Use endpoint defaults */
2511                                         SCTP_INP_RLOCK(inp);
2512                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2513                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2514                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2515                                         /* get inp's default */
2516                                         if (inp->sctp_ep.default_dscp & 0x01) {
2517                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2518                                                 paddrp->spp_flags |= SPP_DSCP;
2519                                         }
2520 #ifdef INET6
2521                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2522                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2523                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2524                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2525                                         }
2526 #endif
2527                                         /* can't return this */
2528                                         paddrp->spp_pathmtu = 0;
2529
2530                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2531                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2532                                         } else {
2533                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2534                                         }
2535                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2536                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2537                                         } else {
2538                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2539                                         }
2540                                         SCTP_INP_RUNLOCK(inp);
2541                                 } else {
2542                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2543                                         error = EINVAL;
2544                                 }
2545                         }
2546                         if (error == 0) {
2547                                 *optsize = sizeof(struct sctp_paddrparams);
2548                         }
2549                         break;
2550                 }
2551         case SCTP_GET_PEER_ADDR_INFO:
2552                 {
2553                         struct sctp_paddrinfo *paddri;
2554                         struct sctp_nets *net;
2555                         struct sockaddr *addr;
2556
2557 #if defined(INET) && defined(INET6)
2558                         struct sockaddr_in sin_store;
2559
2560 #endif
2561
2562                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2563                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2564
2565 #if defined(INET) && defined(INET6)
2566                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2567                                 struct sockaddr_in6 *sin6;
2568
2569                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2570                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2571                                         in6_sin6_2_sin(&sin_store, sin6);
2572                                         addr = (struct sockaddr *)&sin_store;
2573                                 } else {
2574                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2575                                 }
2576                         } else {
2577                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2578                         }
2579 #else
2580                         addr = (struct sockaddr *)&paddri->spinfo_address;
2581 #endif
2582                         if (stcb != NULL) {
2583                                 net = sctp_findnet(stcb, addr);
2584                         } else {
2585                                 /*
2586                                  * We increment here since
2587                                  * sctp_findassociation_ep_addr() wil do a
2588                                  * decrement if it finds the stcb as long as
2589                                  * the locked tcb (last argument) is NOT a
2590                                  * TCB.. aka NULL.
2591                                  */
2592                                 net = NULL;
2593                                 SCTP_INP_INCR_REF(inp);
2594                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2595                                 if (stcb == NULL) {
2596                                         SCTP_INP_DECR_REF(inp);
2597                                 }
2598                         }
2599
2600                         if ((stcb != NULL) && (net != NULL)) {
2601                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2602                                         /* It's unconfirmed */
2603                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2604                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2605                                         /* It's active */
2606                                         paddri->spinfo_state = SCTP_ACTIVE;
2607                                 } else {
2608                                         /* It's inactive */
2609                                         paddri->spinfo_state = SCTP_INACTIVE;
2610                                 }
2611                                 paddri->spinfo_cwnd = net->cwnd;
2612                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2613                                 paddri->spinfo_rto = net->RTO;
2614                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2615                                 paddri->spinfo_mtu = net->mtu;
2616                                 SCTP_TCB_UNLOCK(stcb);
2617                                 *optsize = sizeof(struct sctp_paddrinfo);
2618                         } else {
2619                                 if (stcb != NULL) {
2620                                         SCTP_TCB_UNLOCK(stcb);
2621                                 }
2622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2623                                 error = ENOENT;
2624                         }
2625                         break;
2626                 }
2627         case SCTP_PCB_STATUS:
2628                 {
2629                         struct sctp_pcbinfo *spcb;
2630
2631                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2632                         sctp_fill_pcbinfo(spcb);
2633                         *optsize = sizeof(struct sctp_pcbinfo);
2634                         break;
2635                 }
2636         case SCTP_STATUS:
2637                 {
2638                         struct sctp_nets *net;
2639                         struct sctp_status *sstat;
2640
2641                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2642                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2643
2644                         if (stcb == NULL) {
2645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2646                                 error = EINVAL;
2647                                 break;
2648                         }
2649                         /*
2650                          * I think passing the state is fine since
2651                          * sctp_constants.h will be available to the user
2652                          * land.
2653                          */
2654                         sstat->sstat_state = stcb->asoc.state;
2655                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2656                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2657                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2658                         /*
2659                          * We can't include chunks that have been passed to
2660                          * the socket layer. Only things in queue.
2661                          */
2662                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2663                             stcb->asoc.cnt_on_all_streams);
2664
2665
2666                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2667                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2668                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2669                         memcpy(&sstat->sstat_primary.spinfo_address,
2670                             &stcb->asoc.primary_destination->ro._l_addr,
2671                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2672                         net = stcb->asoc.primary_destination;
2673                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2674                         /*
2675                          * Again the user can get info from sctp_constants.h
2676                          * for what the state of the network is.
2677                          */
2678                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2679                                 /* It's unconfirmed */
2680                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2681                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2682                                 /* It's active */
2683                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2684                         } else {
2685                                 /* It's inactive */
2686                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2687                         }
2688                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2689                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2690                         sstat->sstat_primary.spinfo_rto = net->RTO;
2691                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2692                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2693                         SCTP_TCB_UNLOCK(stcb);
2694                         *optsize = sizeof(struct sctp_status);
2695                         break;
2696                 }
2697         case SCTP_RTOINFO:
2698                 {
2699                         struct sctp_rtoinfo *srto;
2700
2701                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2702                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2703
2704                         if (stcb) {
2705                                 srto->srto_initial = stcb->asoc.initial_rto;
2706                                 srto->srto_max = stcb->asoc.maxrto;
2707                                 srto->srto_min = stcb->asoc.minrto;
2708                                 SCTP_TCB_UNLOCK(stcb);
2709                         } else {
2710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2712                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2713                                         SCTP_INP_RLOCK(inp);
2714                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2715                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2716                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2717                                         SCTP_INP_RUNLOCK(inp);
2718                                 } else {
2719                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2720                                         error = EINVAL;
2721                                 }
2722                         }
2723                         if (error == 0) {
2724                                 *optsize = sizeof(struct sctp_rtoinfo);
2725                         }
2726                         break;
2727                 }
2728         case SCTP_TIMEOUTS:
2729                 {
2730                         struct sctp_timeouts *stimo;
2731
2732                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2733                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2734
2735                         if (stcb) {
2736                                 stimo->stimo_init = stcb->asoc.timoinit;
2737                                 stimo->stimo_data = stcb->asoc.timodata;
2738                                 stimo->stimo_sack = stcb->asoc.timosack;
2739                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2740                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2741                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2742                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2743                                 SCTP_TCB_UNLOCK(stcb);
2744                                 *optsize = sizeof(struct sctp_timeouts);
2745                         } else {
2746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2747                                 error = EINVAL;
2748                         }
2749                         break;
2750                 }
2751         case SCTP_ASSOCINFO:
2752                 {
2753                         struct sctp_assocparams *sasoc;
2754
2755                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2756                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2757
2758                         if (stcb) {
2759                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2760                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2761                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2762                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2763                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2764                                 SCTP_TCB_UNLOCK(stcb);
2765                         } else {
2766                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2767                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2768                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2769                                         SCTP_INP_RLOCK(inp);
2770                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2771                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2772                                         sasoc->sasoc_number_peer_destinations = 0;
2773                                         sasoc->sasoc_peer_rwnd = 0;
2774                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2775                                         SCTP_INP_RUNLOCK(inp);
2776                                 } else {
2777                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2778                                         error = EINVAL;
2779                                 }
2780                         }
2781                         if (error == 0) {
2782                                 *optsize = sizeof(struct sctp_assocparams);
2783                         }
2784                         break;
2785                 }
2786         case SCTP_DEFAULT_SEND_PARAM:
2787                 {
2788                         struct sctp_sndrcvinfo *s_info;
2789
2790                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2791                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2792
2793                         if (stcb) {
2794                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2795                                 SCTP_TCB_UNLOCK(stcb);
2796                         } else {
2797                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2798                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2799                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2800                                         SCTP_INP_RLOCK(inp);
2801                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2802                                         SCTP_INP_RUNLOCK(inp);
2803                                 } else {
2804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2805                                         error = EINVAL;
2806                                 }
2807                         }
2808                         if (error == 0) {
2809                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2810                         }
2811                         break;
2812                 }
2813         case SCTP_INITMSG:
2814                 {
2815                         struct sctp_initmsg *sinit;
2816
2817                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2818                         SCTP_INP_RLOCK(inp);
2819                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2820                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2821                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2822                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2823                         SCTP_INP_RUNLOCK(inp);
2824                         *optsize = sizeof(struct sctp_initmsg);
2825                         break;
2826                 }
2827         case SCTP_PRIMARY_ADDR:
2828                 /* we allow a "get" operation on this */
2829                 {
2830                         struct sctp_setprim *ssp;
2831
2832                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2833                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2834
2835                         if (stcb) {
2836                                 union sctp_sockstore *addr;
2837
2838                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2839                                 switch (addr->sa.sa_family) {
2840 #ifdef INET
2841                                 case AF_INET:
2842 #ifdef INET6
2843                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2844                                                 in6_sin_2_v4mapsin6(&addr->sin,
2845                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2846                                         } else {
2847                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2848                                         }
2849 #else
2850                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2851 #endif
2852                                         break;
2853 #endif
2854 #ifdef INET6
2855                                 case AF_INET6:
2856                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2857                                         break;
2858 #endif
2859                                 default:
2860                                         break;
2861                                 }
2862                                 SCTP_TCB_UNLOCK(stcb);
2863                                 *optsize = sizeof(struct sctp_setprim);
2864                         } else {
2865                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2866                                 error = EINVAL;
2867                         }
2868                         break;
2869                 }
2870         case SCTP_HMAC_IDENT:
2871                 {
2872                         struct sctp_hmacalgo *shmac;
2873                         sctp_hmaclist_t *hmaclist;
2874                         uint32_t size;
2875                         int i;
2876
2877                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2878
2879                         SCTP_INP_RLOCK(inp);
2880                         hmaclist = inp->sctp_ep.local_hmacs;
2881                         if (hmaclist == NULL) {
2882                                 /* no HMACs to return */
2883                                 *optsize = sizeof(*shmac);
2884                                 SCTP_INP_RUNLOCK(inp);
2885                                 break;
2886                         }
2887                         /* is there room for all of the hmac ids? */
2888                         size = sizeof(*shmac) + (hmaclist->num_algo *
2889                             sizeof(shmac->shmac_idents[0]));
2890                         if ((size_t)(*optsize) < size) {
2891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2892                                 error = EINVAL;
2893                                 SCTP_INP_RUNLOCK(inp);
2894                                 break;
2895                         }
2896                         /* copy in the list */
2897                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2898                         for (i = 0; i < hmaclist->num_algo; i++) {
2899                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2900                         }
2901                         SCTP_INP_RUNLOCK(inp);
2902                         *optsize = size;
2903                         break;
2904                 }
2905         case SCTP_AUTH_ACTIVE_KEY:
2906                 {
2907                         struct sctp_authkeyid *scact;
2908
2909                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2910                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2911
2912                         if (stcb) {
2913                                 /* get the active key on the assoc */
2914                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2915                                 SCTP_TCB_UNLOCK(stcb);
2916                         } else {
2917                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2918                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2919                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2920                                         /* get the endpoint active key */
2921                                         SCTP_INP_RLOCK(inp);
2922                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2923                                         SCTP_INP_RUNLOCK(inp);
2924                                 } else {
2925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2926                                         error = EINVAL;
2927                                 }
2928                         }
2929                         if (error == 0) {
2930                                 *optsize = sizeof(struct sctp_authkeyid);
2931                         }
2932                         break;
2933                 }
2934         case SCTP_LOCAL_AUTH_CHUNKS:
2935                 {
2936                         struct sctp_authchunks *sac;
2937                         sctp_auth_chklist_t *chklist = NULL;
2938                         size_t size = 0;
2939
2940                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2941                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2942
2943                         if (stcb) {
2944                                 /* get off the assoc */
2945                                 chklist = stcb->asoc.local_auth_chunks;
2946                                 /* is there enough space? */
2947                                 size = sctp_auth_get_chklist_size(chklist);
2948                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2949                                         error = EINVAL;
2950                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2951                                 } else {
2952                                         /* copy in the chunks */
2953                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2954                                         sac->gauth_number_of_chunks = (uint32_t) size;
2955                                         *optsize = sizeof(struct sctp_authchunks) + size;
2956                                 }
2957                                 SCTP_TCB_UNLOCK(stcb);
2958                         } else {
2959                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2960                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2961                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2962                                         /* get off the endpoint */
2963                                         SCTP_INP_RLOCK(inp);
2964                                         chklist = inp->sctp_ep.local_auth_chunks;
2965                                         /* is there enough space? */
2966                                         size = sctp_auth_get_chklist_size(chklist);
2967                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2968                                                 error = EINVAL;
2969                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2970                                         } else {
2971                                                 /* copy in the chunks */
2972                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2973                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2974                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2975                                         }
2976                                         SCTP_INP_RUNLOCK(inp);
2977                                 } else {
2978                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2979                                         error = EINVAL;
2980                                 }
2981                         }
2982                         break;
2983                 }
2984         case SCTP_PEER_AUTH_CHUNKS:
2985                 {
2986                         struct sctp_authchunks *sac;
2987                         sctp_auth_chklist_t *chklist = NULL;
2988                         size_t size = 0;
2989
2990                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2991                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2992
2993                         if (stcb) {
2994                                 /* get off the assoc */
2995                                 chklist = stcb->asoc.peer_auth_chunks;
2996                                 /* is there enough space? */
2997                                 size = sctp_auth_get_chklist_size(chklist);
2998                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2999                                         error = EINVAL;
3000                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3001                                 } else {
3002                                         /* copy in the chunks */
3003                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3004                                         sac->gauth_number_of_chunks = (uint32_t) size;
3005                                         *optsize = sizeof(struct sctp_authchunks) + size;
3006                                 }
3007                                 SCTP_TCB_UNLOCK(stcb);
3008                         } else {
3009                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3010                                 error = ENOENT;
3011                         }
3012                         break;
3013                 }
3014         case SCTP_EVENT:
3015                 {
3016                         struct sctp_event *event;
3017                         uint32_t event_type;
3018
3019                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3020                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3021
3022                         switch (event->se_type) {
3023                         case SCTP_ASSOC_CHANGE:
3024                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3025                                 break;
3026                         case SCTP_PEER_ADDR_CHANGE:
3027                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3028                                 break;
3029                         case SCTP_REMOTE_ERROR:
3030                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3031                                 break;
3032                         case SCTP_SEND_FAILED:
3033                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3034                                 break;
3035                         case SCTP_SHUTDOWN_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3037                                 break;
3038                         case SCTP_ADAPTATION_INDICATION:
3039                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3040                                 break;
3041                         case SCTP_PARTIAL_DELIVERY_EVENT:
3042                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3043                                 break;
3044                         case SCTP_AUTHENTICATION_EVENT:
3045                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3046                                 break;
3047                         case SCTP_STREAM_RESET_EVENT:
3048                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3049                                 break;
3050                         case SCTP_SENDER_DRY_EVENT:
3051                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3052                                 break;
3053                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3054                                 event_type = 0;
3055                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3056                                 error = ENOTSUP;
3057                                 break;
3058                         case SCTP_ASSOC_RESET_EVENT:
3059                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3060                                 break;
3061                         case SCTP_STREAM_CHANGE_EVENT:
3062                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3063                                 break;
3064                         case SCTP_SEND_FAILED_EVENT:
3065                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3066                                 break;
3067                         default:
3068                                 event_type = 0;
3069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3070                                 error = EINVAL;
3071                                 break;
3072                         }
3073                         if (event_type > 0) {
3074                                 if (stcb) {
3075                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3076                                         SCTP_TCB_UNLOCK(stcb);
3077                                 } else {
3078                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3079                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3080                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3081                                                 SCTP_INP_RLOCK(inp);
3082                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3083                                                 SCTP_INP_RUNLOCK(inp);
3084                                         } else {
3085                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3086                                                 error = EINVAL;
3087                                         }
3088                                 }
3089                         }
3090                         if (error == 0) {
3091                                 *optsize = sizeof(struct sctp_event);
3092                         }
3093                         break;
3094                 }
3095         case SCTP_RECVRCVINFO:
3096                 {
3097                         int onoff;
3098
3099                         if (*optsize < sizeof(int)) {
3100                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3101                                 error = EINVAL;
3102                         } else {
3103                                 SCTP_INP_RLOCK(inp);
3104                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3105                                 SCTP_INP_RUNLOCK(inp);
3106                         }
3107                         if (error == 0) {
3108                                 /* return the option value */
3109                                 *(int *)optval = onoff;
3110                                 *optsize = sizeof(int);
3111                         }
3112                         break;
3113                 }
3114         case SCTP_RECVNXTINFO:
3115                 {
3116                         int onoff;
3117
3118                         if (*optsize < sizeof(int)) {
3119                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3120                                 error = EINVAL;
3121                         } else {
3122                                 SCTP_INP_RLOCK(inp);
3123                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3124                                 SCTP_INP_RUNLOCK(inp);
3125                         }
3126                         if (error == 0) {
3127                                 /* return the option value */
3128                                 *(int *)optval = onoff;
3129                                 *optsize = sizeof(int);
3130                         }
3131                         break;
3132                 }
3133         case SCTP_DEFAULT_SNDINFO:
3134                 {
3135                         struct sctp_sndinfo *info;
3136
3137                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3138                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3139
3140                         if (stcb) {
3141                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3142                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3143                                 info->snd_flags &= 0xfff0;
3144                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3145                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3146                                 SCTP_TCB_UNLOCK(stcb);
3147                         } else {
3148                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3149                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3150                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3151                                         SCTP_INP_RLOCK(inp);
3152                                         info->snd_sid = inp->def_send.sinfo_stream;
3153                                         info->snd_flags = inp->def_send.sinfo_flags;
3154                                         info->snd_flags &= 0xfff0;
3155                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3156                                         info->snd_context = inp->def_send.sinfo_context;
3157                                         SCTP_INP_RUNLOCK(inp);
3158                                 } else {
3159                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3160                                         error = EINVAL;
3161                                 }
3162                         }
3163                         if (error == 0) {
3164                                 *optsize = sizeof(struct sctp_sndinfo);
3165                         }
3166                         break;
3167                 }
3168         case SCTP_DEFAULT_PRINFO:
3169                 {
3170                         struct sctp_default_prinfo *info;
3171
3172                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3173                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3174
3175                         if (stcb) {
3176                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3177                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3178                                 SCTP_TCB_UNLOCK(stcb);
3179                         } else {
3180                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3181                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3182                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3183                                         SCTP_INP_RLOCK(inp);
3184                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3185                                         info->pr_value = inp->def_send.sinfo_timetolive;
3186                                         SCTP_INP_RUNLOCK(inp);
3187                                 } else {
3188                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3189                                         error = EINVAL;
3190                                 }
3191                         }
3192                         if (error == 0) {
3193                                 *optsize = sizeof(struct sctp_default_prinfo);
3194                         }
3195                         break;
3196                 }
3197         case SCTP_PEER_ADDR_THLDS:
3198                 {
3199                         struct sctp_paddrthlds *thlds;
3200                         struct sctp_nets *net;
3201                         struct sockaddr *addr;
3202
3203 #if defined(INET) && defined(INET6)
3204                         struct sockaddr_in sin_store;
3205
3206 #endif
3207
3208                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3209                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3210
3211 #if defined(INET) && defined(INET6)
3212                         if (thlds->spt_address.ss_family == AF_INET6) {
3213                                 struct sockaddr_in6 *sin6;
3214
3215                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3216                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3217                                         in6_sin6_2_sin(&sin_store, sin6);
3218                                         addr = (struct sockaddr *)&sin_store;
3219                                 } else {
3220                                         addr = (struct sockaddr *)&thlds->spt_address;
3221                                 }
3222                         } else {
3223                                 addr = (struct sockaddr *)&thlds->spt_address;
3224                         }
3225 #else
3226                         addr = (struct sockaddr *)&thlds->spt_address;
3227 #endif
3228                         if (stcb != NULL) {
3229                                 net = sctp_findnet(stcb, addr);
3230                         } else {
3231                                 /*
3232                                  * We increment here since
3233                                  * sctp_findassociation_ep_addr() wil do a
3234                                  * decrement if it finds the stcb as long as
3235                                  * the locked tcb (last argument) is NOT a
3236                                  * TCB.. aka NULL.
3237                                  */
3238                                 net = NULL;
3239                                 SCTP_INP_INCR_REF(inp);
3240                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3241                                 if (stcb == NULL) {
3242                                         SCTP_INP_DECR_REF(inp);
3243                                 }
3244                         }
3245                         if ((stcb != NULL) && (net == NULL)) {
3246 #ifdef INET
3247                                 if (addr->sa_family == AF_INET) {
3248                                         struct sockaddr_in *sin;
3249
3250                                         sin = (struct sockaddr_in *)addr;
3251                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3252                                                 error = EINVAL;
3253                                                 SCTP_TCB_UNLOCK(stcb);
3254                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3255                                                 break;
3256                                         }
3257                                 } else
3258 #endif
3259 #ifdef INET6
3260                                 if (addr->sa_family == AF_INET6) {
3261                                         struct sockaddr_in6 *sin6;
3262
3263                                         sin6 = (struct sockaddr_in6 *)addr;
3264                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3265                                                 error = EINVAL;
3266                                                 SCTP_TCB_UNLOCK(stcb);
3267                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3268                                                 break;
3269                                         }
3270                                 } else
3271 #endif
3272                                 {
3273                                         error = EAFNOSUPPORT;
3274                                         SCTP_TCB_UNLOCK(stcb);
3275                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3276                                         break;
3277                                 }
3278                         }
3279                         if (stcb != NULL) {
3280                                 if (net != NULL) {
3281                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3282                                         thlds->spt_pathpfthld = net->pf_threshold;
3283                                 } else {
3284                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3285                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3286                                 }
3287                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3288                                 SCTP_TCB_UNLOCK(stcb);
3289                         } else {
3290                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3291                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3292                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3293                                         /* Use endpoint defaults */
3294                                         SCTP_INP_RLOCK(inp);
3295                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3296                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3297                                         SCTP_INP_RUNLOCK(inp);
3298                                 } else {
3299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3300                                         error = EINVAL;
3301                                 }
3302                         }
3303                         if (error == 0) {
3304                                 *optsize = sizeof(struct sctp_paddrthlds);
3305                         }
3306                         break;
3307                 }
3308         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3309                 {
3310                         struct sctp_udpencaps *encaps;
3311                         struct sctp_nets *net;
3312                         struct sockaddr *addr;
3313
3314 #if defined(INET) && defined(INET6)
3315                         struct sockaddr_in sin_store;
3316
3317 #endif
3318
3319                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3320                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3321
3322 #if defined(INET) && defined(INET6)
3323                         if (encaps->sue_address.ss_family == AF_INET6) {
3324                                 struct sockaddr_in6 *sin6;
3325
3326                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3327                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3328                                         in6_sin6_2_sin(&sin_store, sin6);
3329                                         addr = (struct sockaddr *)&sin_store;
3330                                 } else {
3331                                         addr = (struct sockaddr *)&encaps->sue_address;
3332                                 }
3333                         } else {
3334                                 addr = (struct sockaddr *)&encaps->sue_address;
3335                         }
3336 #else
3337                         addr = (struct sockaddr *)&encaps->sue_address;
3338 #endif
3339                         if (stcb) {
3340                                 net = sctp_findnet(stcb, addr);
3341                         } else {
3342                                 /*
3343                                  * We increment here since
3344                                  * sctp_findassociation_ep_addr() wil do a
3345                                  * decrement if it finds the stcb as long as
3346                                  * the locked tcb (last argument) is NOT a
3347                                  * TCB.. aka NULL.
3348                                  */
3349                                 net = NULL;
3350                                 SCTP_INP_INCR_REF(inp);
3351                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3352                                 if (stcb == NULL) {
3353                                         SCTP_INP_DECR_REF(inp);
3354                                 }
3355                         }
3356                         if ((stcb != NULL) && (net == NULL)) {
3357 #ifdef INET
3358                                 if (addr->sa_family == AF_INET) {
3359                                         struct sockaddr_in *sin;
3360
3361                                         sin = (struct sockaddr_in *)addr;
3362                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3363                                                 error = EINVAL;
3364                                                 SCTP_TCB_UNLOCK(stcb);
3365                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3366                                                 break;
3367                                         }
3368                                 } else
3369 #endif
3370 #ifdef INET6
3371                                 if (addr->sa_family == AF_INET6) {
3372                                         struct sockaddr_in6 *sin6;
3373
3374                                         sin6 = (struct sockaddr_in6 *)addr;
3375                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3376                                                 error = EINVAL;
3377                                                 SCTP_TCB_UNLOCK(stcb);
3378                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3379                                                 break;
3380                                         }
3381                                 } else
3382 #endif
3383                                 {
3384                                         error = EAFNOSUPPORT;
3385                                         SCTP_TCB_UNLOCK(stcb);
3386                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3387                                         break;
3388                                 }
3389                         }
3390                         if (stcb != NULL) {
3391                                 if (net) {
3392                                         encaps->sue_port = net->port;
3393                                 } else {
3394                                         encaps->sue_port = stcb->asoc.port;
3395                                 }
3396                                 SCTP_TCB_UNLOCK(stcb);
3397                         } else {
3398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3399                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3400                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3401                                         SCTP_INP_RLOCK(inp);
3402                                         encaps->sue_port = inp->sctp_ep.port;
3403                                         SCTP_INP_RUNLOCK(inp);
3404                                 } else {
3405                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3406                                         error = EINVAL;
3407                                 }
3408                         }
3409                         if (error == 0) {
3410                                 *optsize = sizeof(struct sctp_udpencaps);
3411                         }
3412                         break;
3413                 }
3414         case SCTP_ECN_SUPPORTED:
3415                 {
3416                         struct sctp_assoc_value *av;
3417
3418                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3419                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3420
3421                         if (stcb) {
3422                                 av->assoc_value = stcb->asoc.ecn_supported;
3423                                 SCTP_TCB_UNLOCK(stcb);
3424                         } else {
3425                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3426                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3427                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3428                                         SCTP_INP_RLOCK(inp);
3429                                         av->assoc_value = inp->ecn_supported;
3430                                         SCTP_INP_RUNLOCK(inp);
3431                                 } else {
3432                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3433                                         error = EINVAL;
3434                                 }
3435                         }
3436                         if (error == 0) {
3437                                 *optsize = sizeof(struct sctp_assoc_value);
3438                         }
3439                         break;
3440                 }
3441         case SCTP_PR_SUPPORTED:
3442                 {
3443                         struct sctp_assoc_value *av;
3444
3445                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3446                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3447
3448                         if (stcb) {
3449                                 av->assoc_value = stcb->asoc.prsctp_supported;
3450                                 SCTP_TCB_UNLOCK(stcb);
3451                         } else {
3452                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3453                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3454                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3455                                         SCTP_INP_RLOCK(inp);
3456                                         av->assoc_value = inp->prsctp_supported;
3457                                         SCTP_INP_RUNLOCK(inp);
3458                                 } else {
3459                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3460                                         error = EINVAL;
3461                                 }
3462                         }
3463                         if (error == 0) {
3464                                 *optsize = sizeof(struct sctp_assoc_value);
3465                         }
3466                         break;
3467                 }
3468         case SCTP_AUTH_SUPPORTED:
3469                 {
3470                         struct sctp_assoc_value *av;
3471
3472                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3473                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3474
3475                         if (stcb) {
3476                                 av->assoc_value = stcb->asoc.auth_supported;
3477                                 SCTP_TCB_UNLOCK(stcb);
3478                         } else {
3479                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3480                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3481                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3482                                         SCTP_INP_RLOCK(inp);
3483                                         av->assoc_value = inp->auth_supported;
3484                                         SCTP_INP_RUNLOCK(inp);
3485                                 } else {
3486                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3487                                         error = EINVAL;
3488                                 }
3489                         }
3490                         if (error == 0) {
3491                                 *optsize = sizeof(struct sctp_assoc_value);
3492                         }
3493                         break;
3494                 }
3495         case SCTP_ASCONF_SUPPORTED:
3496                 {
3497                         struct sctp_assoc_value *av;
3498
3499                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3500                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3501
3502                         if (stcb) {
3503                                 av->assoc_value = stcb->asoc.asconf_supported;
3504                                 SCTP_TCB_UNLOCK(stcb);
3505                         } else {
3506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3508                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3509                                         SCTP_INP_RLOCK(inp);
3510                                         av->assoc_value = inp->asconf_supported;
3511                                         SCTP_INP_RUNLOCK(inp);
3512                                 } else {
3513                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3514                                         error = EINVAL;
3515                                 }
3516                         }
3517                         if (error == 0) {
3518                                 *optsize = sizeof(struct sctp_assoc_value);
3519                         }
3520                         break;
3521                 }
3522         case SCTP_RECONFIG_SUPPORTED:
3523                 {
3524                         struct sctp_assoc_value *av;
3525
3526                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3527                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3528
3529                         if (stcb) {
3530                                 av->assoc_value = stcb->asoc.reconfig_supported;
3531                                 SCTP_TCB_UNLOCK(stcb);
3532                         } else {
3533                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3534                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3535                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3536                                         SCTP_INP_RLOCK(inp);
3537                                         av->assoc_value = inp->reconfig_supported;
3538                                         SCTP_INP_RUNLOCK(inp);
3539                                 } else {
3540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3541                                         error = EINVAL;
3542                                 }
3543                         }
3544                         if (error == 0) {
3545                                 *optsize = sizeof(struct sctp_assoc_value);
3546                         }
3547                         break;
3548                 }
3549         case SCTP_NRSACK_SUPPORTED:
3550                 {
3551                         struct sctp_assoc_value *av;
3552
3553                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3554                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3555
3556                         if (stcb) {
3557                                 av->assoc_value = stcb->asoc.nrsack_supported;
3558                                 SCTP_TCB_UNLOCK(stcb);
3559                         } else {
3560                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3561                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3562                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3563                                         SCTP_INP_RLOCK(inp);
3564                                         av->assoc_value = inp->nrsack_supported;
3565                                         SCTP_INP_RUNLOCK(inp);
3566                                 } else {
3567                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3568                                         error = EINVAL;
3569                                 }
3570                         }
3571                         if (error == 0) {
3572                                 *optsize = sizeof(struct sctp_assoc_value);
3573                         }
3574                         break;
3575                 }
3576         case SCTP_PKTDROP_SUPPORTED:
3577                 {
3578                         struct sctp_assoc_value *av;
3579
3580                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3581                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3582
3583                         if (stcb) {
3584                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3585                                 SCTP_TCB_UNLOCK(stcb);
3586                         } else {
3587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3590                                         SCTP_INP_RLOCK(inp);
3591                                         av->assoc_value = inp->pktdrop_supported;
3592                                         SCTP_INP_RUNLOCK(inp);
3593                                 } else {
3594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3595                                         error = EINVAL;
3596                                 }
3597                         }
3598                         if (error == 0) {
3599                                 *optsize = sizeof(struct sctp_assoc_value);
3600                         }
3601                         break;
3602                 }
3603         case SCTP_ENABLE_STREAM_RESET:
3604                 {
3605                         struct sctp_assoc_value *av;
3606
3607                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3608                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3609
3610                         if (stcb) {
3611                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3612                                 SCTP_TCB_UNLOCK(stcb);
3613                         } else {
3614                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3615                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3616                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3617                                         SCTP_INP_RLOCK(inp);
3618                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3619                                         SCTP_INP_RUNLOCK(inp);
3620                                 } else {
3621                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3622                                         error = EINVAL;
3623                                 }
3624                         }
3625                         if (error == 0) {
3626                                 *optsize = sizeof(struct sctp_assoc_value);
3627                         }
3628                         break;
3629                 }
3630         case SCTP_PR_STREAM_STATUS:
3631                 {
3632                         struct sctp_prstatus *sprstat;
3633                         uint16_t sid;
3634                         uint16_t policy;
3635
3636                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3637                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3638
3639                         sid = sprstat->sprstat_sid;
3640                         policy = sprstat->sprstat_policy;
3641 #if defined(SCTP_DETAILED_STR_STATS)
3642                         if ((stcb != NULL) &&
3643                             (sid < stcb->asoc.streamoutcnt) &&
3644                             (policy != SCTP_PR_SCTP_NONE) &&
3645                             ((policy <= SCTP_PR_SCTP_MAX) ||
3646                             (policy == SCTP_PR_SCTP_ALL))) {
3647                                 if (policy == SCTP_PR_SCTP_ALL) {
3648                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3649                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3650                                 } else {
3651                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3652                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3653                                 }
3654 #else
3655                         if ((stcb != NULL) &&
3656                             (sid < stcb->asoc.streamoutcnt) &&
3657                             (policy == SCTP_PR_SCTP_ALL)) {
3658                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3659                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3660 #endif
3661                                 SCTP_TCB_UNLOCK(stcb);
3662                                 *optsize = sizeof(struct sctp_prstatus);
3663                         } else {
3664                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3665                                 error = EINVAL;
3666                         }
3667                         break;
3668                 }
3669         case SCTP_PR_ASSOC_STATUS:
3670                 {
3671                         struct sctp_prstatus *sprstat;
3672                         uint16_t policy;
3673
3674                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3675                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3676
3677                         policy = sprstat->sprstat_policy;
3678                         if ((stcb != NULL) &&
3679                             (policy != SCTP_PR_SCTP_NONE) &&
3680                             ((policy <= SCTP_PR_SCTP_MAX) ||
3681                             (policy == SCTP_PR_SCTP_ALL))) {
3682                                 if (policy == SCTP_PR_SCTP_ALL) {
3683                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3684                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3685                                 } else {
3686                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3687                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3688                                 }
3689                                 SCTP_TCB_UNLOCK(stcb);
3690                                 *optsize = sizeof(struct sctp_prstatus);
3691                         } else {
3692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3693                                 error = EINVAL;
3694                         }
3695                         break;
3696                 }
3697         default:
3698                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3699                 error = ENOPROTOOPT;
3700                 break;
3701         }                       /* end switch (sopt->sopt_name) */
3702         if (error) {
3703                 *optsize = 0;
3704         }
3705         return (error);
3706 }
3707
3708 static int
3709 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3710     void *p)
3711 {
3712         int error, set_opt;
3713         uint32_t *mopt;
3714         struct sctp_tcb *stcb = NULL;
3715         struct sctp_inpcb *inp = NULL;
3716         uint32_t vrf_id;
3717
3718         if (optval == NULL) {
3719                 SCTP_PRINTF("optval is NULL\n");
3720                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3721                 return (EINVAL);
3722         }
3723         inp = (struct sctp_inpcb *)so->so_pcb;
3724         if (inp == NULL) {
3725                 SCTP_PRINTF("inp is NULL?\n");
3726                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3727                 return (EINVAL);
3728         }
3729         vrf_id = inp->def_vrf_id;
3730
3731         error = 0;
3732         switch (optname) {
3733         case SCTP_NODELAY:
3734         case SCTP_AUTOCLOSE:
3735         case SCTP_AUTO_ASCONF:
3736         case SCTP_EXPLICIT_EOR:
3737         case SCTP_DISABLE_FRAGMENTS:
3738         case SCTP_USE_EXT_RCVINFO:
3739         case SCTP_I_WANT_MAPPED_V4_ADDR:
3740                 /* copy in the option value */
3741                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3742                 set_opt = 0;
3743                 if (error)
3744                         break;
3745                 switch (optname) {
3746                 case SCTP_DISABLE_FRAGMENTS:
3747                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3748                         break;
3749                 case SCTP_AUTO_ASCONF:
3750                         /*
3751                          * NOTE: we don't really support this flag
3752                          */
3753                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3754                                 /* only valid for bound all sockets */
3755                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3756                                     (*mopt != 0)) {
3757                                         /* forbidden by admin */
3758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3759                                         return (EPERM);
3760                                 }
3761                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3762                         } else {
3763                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3764                                 return (EINVAL);
3765                         }
3766                         break;
3767                 case SCTP_EXPLICIT_EOR:
3768                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3769                         break;
3770                 case SCTP_USE_EXT_RCVINFO:
3771                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3772                         break;
3773                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3774                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3775                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3776                         } else {
3777                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3778                                 return (EINVAL);
3779                         }
3780                         break;
3781                 case SCTP_NODELAY:
3782                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3783                         break;
3784                 case SCTP_AUTOCLOSE:
3785                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3786                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3787                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3788                                 return (EINVAL);
3789                         }
3790                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3791                         /*
3792                          * The value is in ticks. Note this does not effect
3793                          * old associations, only new ones.
3794                          */
3795                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3796                         break;
3797                 }
3798                 SCTP_INP_WLOCK(inp);
3799                 if (*mopt != 0) {
3800                         sctp_feature_on(inp, set_opt);
3801                 } else {
3802                         sctp_feature_off(inp, set_opt);
3803                 }
3804                 SCTP_INP_WUNLOCK(inp);
3805                 break;
3806         case SCTP_REUSE_PORT:
3807                 {
3808                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3809                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3810                                 /* Can't set it after we are bound */
3811                                 error = EINVAL;
3812                                 break;
3813                         }
3814                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3815                                 /* Can't do this for a 1-m socket */
3816                                 error = EINVAL;
3817                                 break;
3818                         }
3819                         if (optval)
3820                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3821                         else
3822                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3823                         break;
3824                 }
3825         case SCTP_PARTIAL_DELIVERY_POINT:
3826                 {
3827                         uint32_t *value;
3828
3829                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3830                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3832                                 error = EINVAL;
3833                                 break;
3834                         }
3835                         inp->partial_delivery_point = *value;
3836                         break;
3837                 }
3838         case SCTP_FRAGMENT_INTERLEAVE:
3839                 /* not yet until we re-write sctp_recvmsg() */
3840                 {
3841                         uint32_t *level;
3842
3843                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3844                         if (*level == SCTP_FRAG_LEVEL_2) {
3845                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3846                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3847                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3848                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3849                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3850                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3851                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3852                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3853
3854                         } else {
3855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3856                                 error = EINVAL;
3857                         }
3858                         break;
3859                 }
3860         case SCTP_CMT_ON_OFF:
3861                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3862                         struct sctp_assoc_value *av;
3863
3864                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3865                         if (av->assoc_value > SCTP_CMT_MAX) {
3866                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3867                                 error = EINVAL;
3868                                 break;
3869                         }
3870                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3871                         if (stcb) {
3872                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3873                                 SCTP_TCB_UNLOCK(stcb);
3874                         } else {
3875                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3876                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3877                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3878                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3879                                         SCTP_INP_WLOCK(inp);
3880                                         inp->sctp_cmt_on_off = av->assoc_value;
3881                                         SCTP_INP_WUNLOCK(inp);
3882                                 }
3883                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3884                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3885                                         SCTP_INP_RLOCK(inp);
3886                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3887                                                 SCTP_TCB_LOCK(stcb);
3888                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3889                                                 SCTP_TCB_UNLOCK(stcb);
3890                                         }
3891                                         SCTP_INP_RUNLOCK(inp);
3892                                 }
3893                         }
3894                 } else {
3895                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3896                         error = ENOPROTOOPT;
3897                 }
3898                 break;
3899         case SCTP_PLUGGABLE_CC:
3900                 {
3901                         struct sctp_assoc_value *av;
3902                         struct sctp_nets *net;
3903
3904                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3905                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3906                             (av->assoc_value != SCTP_CC_HSTCP) &&
3907                             (av->assoc_value != SCTP_CC_HTCP) &&
3908                             (av->assoc_value != SCTP_CC_RTCC)) {
3909                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3910                                 error = EINVAL;
3911                                 break;
3912                         }
3913                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3914                         if (stcb) {
3915                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3916                                 stcb->asoc.congestion_control_module = av->assoc_value;
3917                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3918                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3919                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3920                                         }
3921                                 }
3922                                 SCTP_TCB_UNLOCK(stcb);
3923                         } else {
3924                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3925                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3926                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3927                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3928                                         SCTP_INP_WLOCK(inp);
3929                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3930                                         SCTP_INP_WUNLOCK(inp);
3931                                 }
3932                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3933                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3934                                         SCTP_INP_RLOCK(inp);
3935                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3936                                                 SCTP_TCB_LOCK(stcb);
3937                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3938                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3939                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3940                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3941                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3942                                                         }
3943                                                 }
3944                                                 SCTP_TCB_UNLOCK(stcb);
3945                                         }
3946                                         SCTP_INP_RUNLOCK(inp);
3947                                 }
3948                         }
3949                         break;
3950                 }
3951         case SCTP_CC_OPTION:
3952                 {
3953                         struct sctp_cc_option *cc_opt;
3954
3955                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3956                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3957                         if (stcb == NULL) {
3958                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3959                                         SCTP_INP_RLOCK(inp);
3960                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3961                                                 SCTP_TCB_LOCK(stcb);
3962                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3963                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3964                                                 }
3965                                                 SCTP_TCB_UNLOCK(stcb);
3966                                         }
3967                                         SCTP_INP_RUNLOCK(inp);
3968                                 } else {
3969                                         error = EINVAL;
3970                                 }
3971                         } else {
3972                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3973                                         error = ENOTSUP;
3974                                 } else {
3975                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3976                                             cc_opt);
3977                                 }
3978                                 SCTP_TCB_UNLOCK(stcb);
3979                         }
3980                         break;
3981                 }
3982         case SCTP_PLUGGABLE_SS:
3983                 {
3984                         struct sctp_assoc_value *av;
3985
3986                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3987                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3988                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3989                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3990                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3991                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3992                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3993                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3994                                 error = EINVAL;
3995                                 break;
3996                         }
3997                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3998                         if (stcb) {
3999                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4000                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4001                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4002                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4003                                 SCTP_TCB_UNLOCK(stcb);
4004                         } else {
4005                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4006                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4007                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4008                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4009                                         SCTP_INP_WLOCK(inp);
4010                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4011                                         SCTP_INP_WUNLOCK(inp);
4012                                 }
4013                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4014                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4015                                         SCTP_INP_RLOCK(inp);
4016                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4017                                                 SCTP_TCB_LOCK(stcb);
4018                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4019                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4020                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4021                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4022                                                 SCTP_TCB_UNLOCK(stcb);
4023                                         }
4024                                         SCTP_INP_RUNLOCK(inp);
4025                                 }
4026                         }
4027                         break;
4028                 }
4029         case SCTP_SS_VALUE:
4030                 {
4031                         struct sctp_stream_value *av;
4032
4033                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4034                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4035                         if (stcb) {
4036                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4037                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4038                                     av->stream_value) < 0)) {
4039                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4040                                         error = EINVAL;
4041                                 }
4042                                 SCTP_TCB_UNLOCK(stcb);
4043                         } else {
4044                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4045                                         SCTP_INP_RLOCK(inp);
4046                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4047                                                 SCTP_TCB_LOCK(stcb);
4048                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4049                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4050                                                             &stcb->asoc,
4051                                                             &stcb->asoc.strmout[av->stream_id],
4052                                                             av->stream_value);
4053                                                 }
4054                                                 SCTP_TCB_UNLOCK(stcb);
4055                                         }
4056                                         SCTP_INP_RUNLOCK(inp);
4057
4058                                 } else {
4059                                         /*
4060                                          * Can't set stream value without
4061                                          * association
4062                                          */
4063                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4064                                         error = EINVAL;
4065                                 }
4066                         }
4067                         break;
4068                 }
4069         case SCTP_CLR_STAT_LOG:
4070                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4071                 error = EOPNOTSUPP;
4072                 break;
4073         case SCTP_CONTEXT:
4074                 {
4075                         struct sctp_assoc_value *av;
4076
4077                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4078                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4079
4080                         if (stcb) {
4081                                 stcb->asoc.context = av->assoc_value;
4082                                 SCTP_TCB_UNLOCK(stcb);
4083                         } else {
4084                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4085                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4086                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4087                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4088                                         SCTP_INP_WLOCK(inp);
4089                                         inp->sctp_context = av->assoc_value;
4090                                         SCTP_INP_WUNLOCK(inp);
4091                                 }
4092                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4093                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4094                                         SCTP_INP_RLOCK(inp);
4095                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4096                                                 SCTP_TCB_LOCK(stcb);
4097                                                 stcb->asoc.context = av->assoc_value;
4098                                                 SCTP_TCB_UNLOCK(stcb);
4099                                         }
4100                                         SCTP_INP_RUNLOCK(inp);
4101                                 }
4102                         }
4103                         break;
4104                 }
4105         case SCTP_VRF_ID:
4106                 {
4107                         uint32_t *default_vrfid;
4108
4109                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4110                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4111                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4112                                 error = EINVAL;
4113                                 break;
4114                         }
4115                         inp->def_vrf_id = *default_vrfid;
4116                         break;
4117                 }
4118         case SCTP_DEL_VRF_ID:
4119                 {
4120                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4121                         error = EOPNOTSUPP;
4122                         break;
4123                 }
4124         case SCTP_ADD_VRF_ID:
4125                 {
4126                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4127                         error = EOPNOTSUPP;
4128                         break;
4129                 }
4130         case SCTP_DELAYED_SACK:
4131                 {
4132                         struct sctp_sack_info *sack;
4133
4134                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4135                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4136                         if (sack->sack_delay) {
4137                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4138                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4139                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4140                                         sack->sack_delay = TICKS_TO_MSEC(1);
4141                                 }
4142                         }
4143                         if (stcb) {
4144                                 if (sack->sack_delay) {
4145                                         stcb->asoc.delayed_ack = sack->sack_delay;
4146                                 }
4147                                 if (sack->sack_freq) {
4148                                         stcb->asoc.sack_freq = sack->sack_freq;
4149                                 }
4150                                 SCTP_TCB_UNLOCK(stcb);
4151                         } else {
4152                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4153                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4154                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4155                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4156                                         SCTP_INP_WLOCK(inp);
4157                                         if (sack->sack_delay) {
4158                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4159                                         }
4160                                         if (sack->sack_freq) {
4161                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4162                                         }
4163                                         SCTP_INP_WUNLOCK(inp);
4164                                 }
4165                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4166                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4167                                         SCTP_INP_RLOCK(inp);
4168                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4169                                                 SCTP_TCB_LOCK(stcb);
4170                                                 if (sack->sack_delay) {
4171                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4172                                                 }
4173                                                 if (sack->sack_freq) {
4174                                                         stcb->asoc.sack_freq = sack->sack_freq;
4175                                                 }
4176                                                 SCTP_TCB_UNLOCK(stcb);
4177                                         }
4178                                         SCTP_INP_RUNLOCK(inp);
4179                                 }
4180                         }
4181                         break;
4182                 }
4183         case SCTP_AUTH_CHUNK:
4184                 {
4185                         struct sctp_authchunk *sauth;
4186
4187                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4188
4189                         SCTP_INP_WLOCK(inp);
4190                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4191                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4192                                 error = EINVAL;
4193                         }
4194                         SCTP_INP_WUNLOCK(inp);
4195                         break;
4196                 }
4197         case SCTP_AUTH_KEY:
4198                 {
4199                         struct sctp_authkey *sca;
4200                         struct sctp_keyhead *shared_keys;
4201                         sctp_sharedkey_t *shared_key;
4202                         sctp_key_t *key = NULL;
4203                         size_t size;
4204
4205                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4206                         if (sca->sca_keylength == 0) {
4207                                 size = optsize - sizeof(struct sctp_authkey);
4208                         } else {
4209                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4210                                         size = sca->sca_keylength;
4211                                 } else {
4212                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4213                                         error = EINVAL;
4214                                         break;
4215                                 }
4216                         }
4217                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4218
4219                         if (stcb) {
4220                                 shared_keys = &stcb->asoc.shared_keys;
4221                                 /* clear the cached keys for this key id */
4222                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4223                                 /*
4224                                  * create the new shared key and
4225                                  * insert/replace it
4226                                  */
4227                                 if (size > 0) {
4228                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4229                                         if (key == NULL) {
4230                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4231                                                 error = ENOMEM;
4232                                                 SCTP_TCB_UNLOCK(stcb);
4233                                                 break;
4234                                         }
4235                                 }
4236                                 shared_key = sctp_alloc_sharedkey();
4237                                 if (shared_key == NULL) {
4238                                         sctp_free_key(key);
4239                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4240                                         error = ENOMEM;
4241                                         SCTP_TCB_UNLOCK(stcb);
4242                                         break;
4243                                 }
4244                                 shared_key->key = key;
4245                                 shared_key->keyid = sca->sca_keynumber;
4246                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4247                                 SCTP_TCB_UNLOCK(stcb);
4248                         } else {
4249                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4250                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4251                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4252                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4253                                         SCTP_INP_WLOCK(inp);
4254                                         shared_keys = &inp->sctp_ep.shared_keys;
4255                                         /*
4256                                          * clear the cached keys on all
4257                                          * assocs for this key id
4258                                          */
4259                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4260                                         /*
4261                                          * create the new shared key and
4262                                          * insert/replace it
4263                                          */
4264                                         if (size > 0) {
4265                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4266                                                 if (key == NULL) {
4267                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4268                                                         error = ENOMEM;
4269                                                         SCTP_INP_WUNLOCK(inp);
4270                                                         break;
4271                                                 }
4272                                         }
4273                                         shared_key = sctp_alloc_sharedkey();
4274                                         if (shared_key == NULL) {
4275                                                 sctp_free_key(key);
4276                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4277                                                 error = ENOMEM;
4278                                                 SCTP_INP_WUNLOCK(inp);
4279                                                 break;
4280                                         }
4281                                         shared_key->key = key;
4282                                         shared_key->keyid = sca->sca_keynumber;
4283                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4284                                         SCTP_INP_WUNLOCK(inp);
4285                                 }
4286                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4287                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4288                                         SCTP_INP_RLOCK(inp);
4289                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4290                                                 SCTP_TCB_LOCK(stcb);
4291                                                 shared_keys = &stcb->asoc.shared_keys;
4292                                                 /*
4293                                                  * clear the cached keys for
4294                                                  * this key id
4295                                                  */
4296                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4297                                                 /*
4298                                                  * create the new shared key
4299                                                  * and insert/replace it
4300                                                  */
4301                                                 if (size > 0) {
4302                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4303                                                         if (key == NULL) {
4304                                                                 SCTP_TCB_UNLOCK(stcb);
4305                                                                 continue;
4306                                                         }
4307                                                 }
4308                                                 shared_key = sctp_alloc_sharedkey();
4309                                                 if (shared_key == NULL) {
4310                                                         sctp_free_key(key);
4311                                                         SCTP_TCB_UNLOCK(stcb);
4312                                                         continue;
4313                                                 }
4314                                                 shared_key->key = key;
4315                                                 shared_key->keyid = sca->sca_keynumber;
4316                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4317                                                 SCTP_TCB_UNLOCK(stcb);
4318                                         }
4319                                         SCTP_INP_RUNLOCK(inp);
4320                                 }
4321                         }
4322                         break;
4323                 }
4324         case SCTP_HMAC_IDENT:
4325                 {
4326                         struct sctp_hmacalgo *shmac;
4327                         sctp_hmaclist_t *hmaclist;
4328                         uint16_t hmacid;
4329                         uint32_t i;
4330
4331                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4332                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4333                             (shmac->shmac_number_of_idents > 0xffff)) {
4334                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4335                                 error = EINVAL;
4336                                 break;
4337                         }
4338                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4339                         if (hmaclist == NULL) {
4340                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4341                                 error = ENOMEM;
4342                                 break;
4343                         }
4344                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4345                                 hmacid = shmac->shmac_idents[i];
4346                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4347                                          /* invalid HMACs were found */ ;
4348                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4349                                         error = EINVAL;
4350                                         sctp_free_hmaclist(hmaclist);
4351                                         goto sctp_set_hmac_done;
4352                                 }
4353                         }
4354                         for (i = 0; i < hmaclist->num_algo; i++) {
4355                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4356                                         /* already in list */
4357                                         break;
4358                                 }
4359                         }
4360                         if (i == hmaclist->num_algo) {
4361                                 /* not found in list */
4362                                 sctp_free_hmaclist(hmaclist);
4363                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4364                                 error = EINVAL;
4365                                 break;
4366                         }
4367                         /* set it on the endpoint */
4368                         SCTP_INP_WLOCK(inp);
4369                         if (inp->sctp_ep.local_hmacs)
4370                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4371                         inp->sctp_ep.local_hmacs = hmaclist;
4372                         SCTP_INP_WUNLOCK(inp);
4373         sctp_set_hmac_done:
4374                         break;
4375                 }
4376         case SCTP_AUTH_ACTIVE_KEY:
4377                 {
4378                         struct sctp_authkeyid *scact;
4379
4380                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4381                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4382
4383                         /* set the active key on the right place */
4384                         if (stcb) {
4385                                 /* set the active key on the assoc */
4386                                 if (sctp_auth_setactivekey(stcb,
4387                                     scact->scact_keynumber)) {
4388                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4389                                             SCTP_FROM_SCTP_USRREQ,
4390                                             EINVAL);
4391                                         error = EINVAL;
4392                                 }
4393                                 SCTP_TCB_UNLOCK(stcb);
4394                         } else {
4395                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4396                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4397                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4398                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4399                                         SCTP_INP_WLOCK(inp);
4400                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4401                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4402                                                 error = EINVAL;
4403                                         }
4404                                         SCTP_INP_WUNLOCK(inp);
4405                                 }
4406                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4407                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4408                                         SCTP_INP_RLOCK(inp);
4409                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4410                                                 SCTP_TCB_LOCK(stcb);
4411                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4412                                                 SCTP_TCB_UNLOCK(stcb);
4413                                         }
4414                                         SCTP_INP_RUNLOCK(inp);
4415                                 }
4416                         }
4417                         break;
4418                 }
4419         case SCTP_AUTH_DELETE_KEY:
4420                 {
4421                         struct sctp_authkeyid *scdel;
4422
4423                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4424                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4425
4426                         /* delete the key from the right place */
4427                         if (stcb) {
4428                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4429                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4430                                         error = EINVAL;
4431                                 }
4432                                 SCTP_TCB_UNLOCK(stcb);
4433                         } else {
4434                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4435                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4436                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4437                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4438                                         SCTP_INP_WLOCK(inp);
4439                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4440                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4441                                                 error = EINVAL;
4442                                         }
4443                                         SCTP_INP_WUNLOCK(inp);
4444                                 }
4445                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4446                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4447                                         SCTP_INP_RLOCK(inp);
4448                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4449                                                 SCTP_TCB_LOCK(stcb);
4450                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4451                                                 SCTP_TCB_UNLOCK(stcb);
4452                                         }
4453                                         SCTP_INP_RUNLOCK(inp);
4454                                 }
4455                         }
4456                         break;
4457                 }
4458         case SCTP_AUTH_DEACTIVATE_KEY:
4459                 {
4460                         struct sctp_authkeyid *keyid;
4461
4462                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4463                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4464
4465                         /* deactivate the key from the right place */
4466                         if (stcb) {
4467                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4468                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4469                                         error = EINVAL;
4470                                 }
4471                                 SCTP_TCB_UNLOCK(stcb);
4472                         } else {
4473                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4474                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4475                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4476                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4477                                         SCTP_INP_WLOCK(inp);
4478                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4479                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4480                                                 error = EINVAL;
4481                                         }
4482                                         SCTP_INP_WUNLOCK(inp);
4483                                 }
4484                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4485                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4486                                         SCTP_INP_RLOCK(inp);
4487                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4488                                                 SCTP_TCB_LOCK(stcb);
4489                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4490                                                 SCTP_TCB_UNLOCK(stcb);
4491                                         }
4492                                         SCTP_INP_RUNLOCK(inp);
4493                                 }
4494                         }
4495                         break;
4496                 }
4497         case SCTP_ENABLE_STREAM_RESET:
4498                 {
4499                         struct sctp_assoc_value *av;
4500
4501                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4502                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4503                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4504                                 error = EINVAL;
4505                                 break;
4506                         }
4507                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4508                         if (stcb) {
4509                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4510                                 SCTP_TCB_UNLOCK(stcb);
4511                         } else {
4512                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4513                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4514                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4515                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4516                                         SCTP_INP_WLOCK(inp);
4517                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4518                                         SCTP_INP_WUNLOCK(inp);
4519                                 }
4520                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4521                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4522                                         SCTP_INP_RLOCK(inp);
4523                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4524                                                 SCTP_TCB_LOCK(stcb);
4525                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4526                                                 SCTP_TCB_UNLOCK(stcb);
4527                                         }
4528                                         SCTP_INP_RUNLOCK(inp);
4529                                 }
4530                         }
4531                         break;
4532                 }
4533         case SCTP_RESET_STREAMS:
4534                 {
4535                         struct sctp_reset_streams *strrst;
4536                         int i, send_out = 0;
4537                         int send_in = 0;
4538
4539                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4540                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4541                         if (stcb == NULL) {
4542                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4543                                 error = ENOENT;
4544                                 break;
4545                         }
4546                         if (stcb->asoc.reconfig_supported == 0) {
4547                                 /*
4548                                  * Peer does not support the chunk type.
4549                                  */
4550                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4551                                 error = EOPNOTSUPP;
4552                                 SCTP_TCB_UNLOCK(stcb);
4553                                 break;
4554                         }
4555                         if (sizeof(struct sctp_reset_streams) +
4556                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4557                                 error = EINVAL;
4558                                 SCTP_TCB_UNLOCK(stcb);
4559                                 break;
4560                         }
4561                         if (stcb->asoc.stream_reset_outstanding) {
4562                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4563                                 error = EALREADY;
4564                                 SCTP_TCB_UNLOCK(stcb);
4565                                 break;
4566                         }
4567                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4568                                 send_in = 1;
4569                         }
4570                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4571                                 send_out = 1;
4572                         }
4573                         if ((send_in == 0) && (send_out == 0)) {
4574                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4575                                 error = EINVAL;
4576                                 SCTP_TCB_UNLOCK(stcb);
4577                                 break;
4578                         }
4579                         for (i = 0; i < strrst->srs_number_streams; i++) {
4580                                 if ((send_in) &&
4581                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4582                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4583                                         error = EINVAL;
4584                                         break;
4585                                 }
4586                                 if ((send_out) &&
4587                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4588                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4589                                         error = EINVAL;
4590                                         break;
4591                                 }
4592                         }
4593                         if (error) {
4594                                 SCTP_TCB_UNLOCK(stcb);
4595                                 break;
4596                         }
4597                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4598                             strrst->srs_stream_list,
4599                             send_out, send_in, 0, 0, 0, 0, 0);
4600
4601                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4602                         SCTP_TCB_UNLOCK(stcb);
4603                         break;
4604                 }
4605         case SCTP_ADD_STREAMS:
4606                 {
4607                         struct sctp_add_streams *stradd;
4608                         uint8_t addstream = 0;
4609                         uint16_t add_o_strmcnt = 0;
4610                         uint16_t add_i_strmcnt = 0;
4611
4612                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4613                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4614                         if (stcb == NULL) {
4615                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4616                                 error = ENOENT;
4617                                 break;
4618                         }
4619                         if (stcb->asoc.reconfig_supported == 0) {
4620                                 /*
4621                                  * Peer does not support the chunk type.
4622                                  */
4623                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4624                                 error = EOPNOTSUPP;
4625                                 SCTP_TCB_UNLOCK(stcb);
4626                                 break;
4627                         }
4628                         if (stcb->asoc.stream_reset_outstanding) {
4629                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4630                                 error = EALREADY;
4631                                 SCTP_TCB_UNLOCK(stcb);
4632                                 break;
4633                         }
4634                         if ((stradd->sas_outstrms == 0) &&
4635                             (stradd->sas_instrms == 0)) {
4636                                 error = EINVAL;
4637                                 goto skip_stuff;
4638                         }
4639                         if (stradd->sas_outstrms) {
4640                                 addstream = 1;
4641                                 /* We allocate here */
4642                                 add_o_strmcnt = stradd->sas_outstrms;
4643                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4644                                         /* You can't have more than 64k */
4645                                         error = EINVAL;
4646                                         goto skip_stuff;
4647                                 }
4648                         }
4649                         if (stradd->sas_instrms) {
4650                                 int cnt;
4651
4652                                 addstream |= 2;
4653                                 /*
4654                                  * We allocate inside
4655                                  * sctp_send_str_reset_req()
4656                                  */
4657                                 add_i_strmcnt = stradd->sas_instrms;
4658                                 cnt = add_i_strmcnt;
4659                                 cnt += stcb->asoc.streamincnt;
4660                                 if (cnt > 0x0000ffff) {
4661                                         /* You can't have more than 64k */
4662                                         error = EINVAL;
4663                                         goto skip_stuff;
4664                                 }
4665                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4666                                         /* More than you are allowed */
4667                                         error = EINVAL;
4668                                         goto skip_stuff;
4669                                 }
4670                         }
4671                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4672                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4673         skip_stuff:
4674                         SCTP_TCB_UNLOCK(stcb);
4675                         break;
4676                 }
4677         case SCTP_RESET_ASSOC:
4678                 {
4679                         uint32_t *value;
4680
4681                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4682                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4683                         if (stcb == NULL) {
4684                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4685                                 error = ENOENT;
4686                                 break;
4687                         }
4688                         if (stcb->asoc.reconfig_supported == 0) {
4689                                 /*
4690                                  * Peer does not support the chunk type.
4691                                  */
4692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4693                                 error = EOPNOTSUPP;
4694                                 SCTP_TCB_UNLOCK(stcb);
4695                                 break;
4696                         }
4697                         if (stcb->asoc.stream_reset_outstanding) {
4698                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4699                                 error = EALREADY;
4700                                 SCTP_TCB_UNLOCK(stcb);
4701                                 break;
4702                         }
4703                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4704                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4705                         SCTP_TCB_UNLOCK(stcb);
4706                         break;
4707                 }
4708         case SCTP_CONNECT_X:
4709                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4710                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4711                         error = EINVAL;
4712                         break;
4713                 }
4714                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4715                 break;
4716         case SCTP_CONNECT_X_DELAYED:
4717                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4718                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4719                         error = EINVAL;
4720                         break;
4721                 }
4722                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4723                 break;
4724         case SCTP_CONNECT_X_COMPLETE:
4725                 {
4726                         struct sockaddr *sa;
4727                         struct sctp_nets *net;
4728
4729                         /* FIXME MT: check correct? */
4730                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4731
4732                         /* find tcb */
4733                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4734                                 SCTP_INP_RLOCK(inp);
4735                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4736                                 if (stcb) {
4737                                         SCTP_TCB_LOCK(stcb);
4738                                         net = sctp_findnet(stcb, sa);
4739                                 }
4740                                 SCTP_INP_RUNLOCK(inp);
4741                         } else {
4742                                 /*
4743                                  * We increment here since
4744                                  * sctp_findassociation_ep_addr() wil do a
4745                                  * decrement if it finds the stcb as long as
4746                                  * the locked tcb (last argument) is NOT a
4747                                  * TCB.. aka NULL.
4748                                  */
4749                                 SCTP_INP_INCR_REF(inp);
4750                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4751                                 if (stcb == NULL) {
4752                                         SCTP_INP_DECR_REF(inp);
4753                                 }
4754                         }
4755
4756                         if (stcb == NULL) {
4757                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4758                                 error = ENOENT;
4759                                 break;
4760                         }
4761                         if (stcb->asoc.delayed_connection == 1) {
4762                                 stcb->asoc.delayed_connection = 0;
4763                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4764                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4765                                     stcb->asoc.primary_destination,
4766                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4767                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4768                         } else {
4769                                 /*
4770                                  * already expired or did not use delayed
4771                                  * connectx
4772                                  */
4773                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4774                                 error = EALREADY;
4775                         }
4776                         SCTP_TCB_UNLOCK(stcb);
4777                         break;
4778                 }
4779         case SCTP_MAX_BURST:
4780                 {
4781                         struct sctp_assoc_value *av;
4782
4783                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4784                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4785
4786                         if (stcb) {
4787                                 stcb->asoc.max_burst = av->assoc_value;
4788                                 SCTP_TCB_UNLOCK(stcb);
4789                         } else {
4790                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4791                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4792                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4793                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4794                                         SCTP_INP_WLOCK(inp);
4795                                         inp->sctp_ep.max_burst = av->assoc_value;
4796                                         SCTP_INP_WUNLOCK(inp);
4797                                 }
4798                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4799                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4800                                         SCTP_INP_RLOCK(inp);
4801                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4802                                                 SCTP_TCB_LOCK(stcb);
4803                                                 stcb->asoc.max_burst = av->assoc_value;
4804                                                 SCTP_TCB_UNLOCK(stcb);
4805                                         }
4806                                         SCTP_INP_RUNLOCK(inp);
4807                                 }
4808                         }
4809                         break;
4810                 }
4811         case SCTP_MAXSEG:
4812                 {
4813                         struct sctp_assoc_value *av;
4814                         int ovh;
4815
4816                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4817                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4818
4819                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4820                                 ovh = SCTP_MED_OVERHEAD;
4821                         } else {
4822                                 ovh = SCTP_MED_V4_OVERHEAD;
4823                         }
4824                         if (stcb) {
4825                                 if (av->assoc_value) {
4826                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4827                                 } else {
4828                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4829                                 }
4830                                 SCTP_TCB_UNLOCK(stcb);
4831                         } else {
4832                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4833                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4834                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4835                                         SCTP_INP_WLOCK(inp);
4836                                         /*
4837                                          * FIXME MT: I think this is not in
4838                                          * tune with the API ID
4839                                          */
4840                                         if (av->assoc_value) {
4841                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4842                                         } else {
4843                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4844                                         }
4845                                         SCTP_INP_WUNLOCK(inp);
4846                                 } else {
4847                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4848                                         error = EINVAL;
4849                                 }
4850                         }
4851                         break;
4852                 }
4853         case SCTP_EVENTS:
4854                 {
4855                         struct sctp_event_subscribe *events;
4856
4857                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4858
4859                         SCTP_INP_WLOCK(inp);
4860                         if (events->sctp_data_io_event) {
4861                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4862                         } else {
4863                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4864                         }
4865
4866                         if (events->sctp_association_event) {
4867                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4868                         } else {
4869                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4870                         }
4871
4872                         if (events->sctp_address_event) {
4873                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4874                         } else {
4875                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4876                         }
4877
4878                         if (events->sctp_send_failure_event) {
4879                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4880                         } else {
4881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4882                         }
4883
4884                         if (events->sctp_peer_error_event) {
4885                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4886                         } else {
4887                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4888                         }
4889
4890                         if (events->sctp_shutdown_event) {
4891                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4892                         } else {
4893                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4894                         }
4895
4896                         if (events->sctp_partial_delivery_event) {
4897                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4898                         } else {
4899                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4900                         }
4901
4902                         if (events->sctp_adaptation_layer_event) {
4903                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4904                         } else {
4905                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4906                         }
4907
4908                         if (events->sctp_authentication_event) {
4909                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4910                         } else {
4911                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4912                         }
4913
4914                         if (events->sctp_sender_dry_event) {
4915                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4916                         } else {
4917                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4918                         }
4919
4920                         if (events->sctp_stream_reset_event) {
4921                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4922                         } else {
4923                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4924                         }
4925                         SCTP_INP_WUNLOCK(inp);
4926
4927                         SCTP_INP_RLOCK(inp);
4928                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4929                                 SCTP_TCB_LOCK(stcb);
4930                                 if (events->sctp_association_event) {
4931                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4932                                 } else {
4933                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4934                                 }
4935                                 if (events->sctp_address_event) {
4936                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4937                                 } else {
4938                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4939                                 }
4940                                 if (events->sctp_send_failure_event) {
4941                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4942                                 } else {
4943                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4944                                 }
4945                                 if (events->sctp_peer_error_event) {
4946                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4947                                 } else {
4948                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4949                                 }
4950                                 if (events->sctp_shutdown_event) {
4951                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4952                                 } else {
4953                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4954                                 }
4955                                 if (events->sctp_partial_delivery_event) {
4956                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4957                                 } else {
4958                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4959                                 }
4960                                 if (events->sctp_adaptation_layer_event) {
4961                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4962                                 } else {
4963                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4964                                 }
4965                                 if (events->sctp_authentication_event) {
4966                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4967                                 } else {
4968                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4969                                 }
4970                                 if (events->sctp_sender_dry_event) {
4971                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4972                                 } else {
4973                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4974                                 }
4975                                 if (events->sctp_stream_reset_event) {
4976                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4977                                 } else {
4978                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4979                                 }
4980                                 SCTP_TCB_UNLOCK(stcb);
4981                         }
4982                         /*
4983                          * Send up the sender dry event only for 1-to-1
4984                          * style sockets.
4985                          */
4986                         if (events->sctp_sender_dry_event) {
4987                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4988                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4989                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4990                                         if (stcb) {
4991                                                 SCTP_TCB_LOCK(stcb);
4992                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4993                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4994                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4995                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4996                                                 }
4997                                                 SCTP_TCB_UNLOCK(stcb);
4998                                         }
4999                                 }
5000                         }
5001                         SCTP_INP_RUNLOCK(inp);
5002                         break;
5003                 }
5004         case SCTP_ADAPTATION_LAYER:
5005                 {
5006                         struct sctp_setadaptation *adap_bits;
5007
5008                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5009                         SCTP_INP_WLOCK(inp);
5010                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5011                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5012                         SCTP_INP_WUNLOCK(inp);
5013                         break;
5014                 }
5015 #ifdef SCTP_DEBUG
5016         case SCTP_SET_INITIAL_DBG_SEQ:
5017                 {
5018                         uint32_t *vvv;
5019
5020                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5021                         SCTP_INP_WLOCK(inp);
5022                         inp->sctp_ep.initial_sequence_debug = *vvv;
5023                         SCTP_INP_WUNLOCK(inp);
5024                         break;
5025                 }
5026 #endif
5027         case SCTP_DEFAULT_SEND_PARAM:
5028                 {
5029                         struct sctp_sndrcvinfo *s_info;
5030
5031                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5032                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5033
5034                         if (stcb) {
5035                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5036                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5037                                 } else {
5038                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5039                                         error = EINVAL;
5040                                 }
5041                                 SCTP_TCB_UNLOCK(stcb);
5042                         } else {
5043                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5044                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5045                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5046                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5047                                         SCTP_INP_WLOCK(inp);
5048                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5049                                         SCTP_INP_WUNLOCK(inp);
5050                                 }
5051                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5052                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5053                                         SCTP_INP_RLOCK(inp);
5054                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5055                                                 SCTP_TCB_LOCK(stcb);
5056                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5057                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5058                                                 }
5059                                                 SCTP_TCB_UNLOCK(stcb);
5060                                         }
5061                                         SCTP_INP_RUNLOCK(inp);
5062                                 }
5063                         }
5064                         break;
5065                 }
5066         case SCTP_PEER_ADDR_PARAMS:
5067                 {
5068                         struct sctp_paddrparams *paddrp;
5069                         struct sctp_nets *net;
5070                         struct sockaddr *addr;
5071
5072 #if defined(INET) && defined(INET6)
5073                         struct sockaddr_in sin_store;
5074
5075 #endif
5076
5077                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5078                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5079
5080 #if defined(INET) && defined(INET6)
5081                         if (paddrp->spp_address.ss_family == AF_INET6) {
5082                                 struct sockaddr_in6 *sin6;
5083
5084                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5085                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5086                                         in6_sin6_2_sin(&sin_store, sin6);
5087                                         addr = (struct sockaddr *)&sin_store;
5088                                 } else {
5089                                         addr = (struct sockaddr *)&paddrp->spp_address;
5090                                 }
5091                         } else {
5092                                 addr = (struct sockaddr *)&paddrp->spp_address;
5093                         }
5094 #else
5095                         addr = (struct sockaddr *)&paddrp->spp_address;
5096 #endif
5097                         if (stcb != NULL) {
5098                                 net = sctp_findnet(stcb, addr);
5099                         } else {
5100                                 /*
5101                                  * We increment here since
5102                                  * sctp_findassociation_ep_addr() wil do a
5103                                  * decrement if it finds the stcb as long as
5104                                  * the locked tcb (last argument) is NOT a
5105                                  * TCB.. aka NULL.
5106                                  */
5107                                 net = NULL;
5108                                 SCTP_INP_INCR_REF(inp);
5109                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5110                                     &net, NULL, NULL);
5111                                 if (stcb == NULL) {
5112                                         SCTP_INP_DECR_REF(inp);
5113                                 }
5114                         }
5115                         if ((stcb != NULL) && (net == NULL)) {
5116 #ifdef INET
5117                                 if (addr->sa_family == AF_INET) {
5118
5119                                         struct sockaddr_in *sin;
5120
5121                                         sin = (struct sockaddr_in *)addr;
5122                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5123                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5124                                                 SCTP_TCB_UNLOCK(stcb);
5125                                                 error = EINVAL;
5126                                                 break;
5127                                         }
5128                                 } else
5129 #endif
5130 #ifdef INET6
5131                                 if (addr->sa_family == AF_INET6) {
5132                                         struct sockaddr_in6 *sin6;
5133
5134                                         sin6 = (struct sockaddr_in6 *)addr;
5135                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5136                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5137                                                 SCTP_TCB_UNLOCK(stcb);
5138                                                 error = EINVAL;
5139                                                 break;
5140                                         }
5141                                 } else
5142 #endif
5143                                 {
5144                                         error = EAFNOSUPPORT;
5145                                         SCTP_TCB_UNLOCK(stcb);
5146                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5147                                         break;
5148                                 }
5149                         }
5150                         /* sanity checks */
5151                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5152                                 if (stcb)
5153                                         SCTP_TCB_UNLOCK(stcb);
5154                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5155                                 return (EINVAL);
5156                         }
5157                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5158                                 if (stcb)
5159                                         SCTP_TCB_UNLOCK(stcb);
5160                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5161                                 return (EINVAL);
5162                         }
5163                         if (stcb != NULL) {
5164                                 /************************TCB SPECIFIC SET ******************/
5165                                 /*
5166                                  * do we change the timer for HB, we run
5167                                  * only one?
5168                                  */
5169                                 int ovh = 0;
5170
5171                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5172                                         ovh = SCTP_MED_OVERHEAD;
5173                                 } else {
5174                                         ovh = SCTP_MED_V4_OVERHEAD;
5175                                 }
5176
5177                                 /* network sets ? */
5178                                 if (net != NULL) {
5179                                         /************************NET SPECIFIC SET ******************/
5180                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5181                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5182                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5183                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5184                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5185                                                 }
5186                                                 net->dest_state |= SCTP_ADDR_NOHB;
5187                                         }
5188                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5189                                                 if (paddrp->spp_hbinterval) {
5190                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5191                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5192                                                         net->heart_beat_delay = 0;
5193                                                 }
5194                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5195                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5196                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5197                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5198                                         }
5199                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5200                                                 /* on demand HB */
5201                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5202                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5203                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5204                                         }
5205                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5206                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5207                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5208                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5209                                                 }
5210                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5211                                                 net->mtu = paddrp->spp_pathmtu + ovh;
5212                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5213                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5214                                                 }
5215                                         }
5216                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5217                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5218                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5219                                                 }
5220                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5221                                         }
5222                                         if (paddrp->spp_pathmaxrxt) {
5223                                                 if (net->dest_state & SCTP_ADDR_PF) {
5224                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5225                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5226                                                         }
5227                                                 } else {
5228                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5229                                                             (net->error_count > net->pf_threshold)) {
5230                                                                 net->dest_state |= SCTP_ADDR_PF;
5231                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5232                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5233                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5234                                                         }
5235                                                 }
5236                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5237                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5238                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5239                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5240                                                         }
5241                                                 } else {
5242                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5243                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5244                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5245                                                         }
5246                                                 }
5247                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5248                                         }
5249                                         if (paddrp->spp_flags & SPP_DSCP) {
5250                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5251                                                 net->dscp |= 0x01;
5252                                         }
5253 #ifdef INET6
5254                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5255                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5256                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5257                                                         net->flowlabel |= 0x80000000;
5258                                                 }
5259                                         }
5260 #endif
5261                                 } else {
5262                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5263                                         if (paddrp->spp_pathmaxrxt != 0) {
5264                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5265                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5266                                                         if (net->dest_state & SCTP_ADDR_PF) {
5267                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5268                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5269                                                                 }
5270                                                         } else {
5271                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5272                                                                     (net->error_count > net->pf_threshold)) {
5273                                                                         net->dest_state |= SCTP_ADDR_PF;
5274                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5275                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5276                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5277                                                                 }
5278                                                         }
5279                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5280                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5281                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5282                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5283                                                                 }
5284                                                         } else {
5285                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5286                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5287                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5288                                                                 }
5289                                                         }
5290                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5291                                                 }
5292                                         }
5293                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5294                                                 if (paddrp->spp_hbinterval != 0) {
5295                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5296                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5297                                                         stcb->asoc.heart_beat_delay = 0;
5298                                                 }
5299                                                 /* Turn back on the timer */
5300                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5301                                                         if (paddrp->spp_hbinterval != 0) {
5302                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5303                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5304                                                                 net->heart_beat_delay = 0;
5305                                                         }
5306                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5307                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5308                                                         }
5309                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5310                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5311                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5312                                                 }
5313                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5314                                         }
5315                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5316                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5317                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5318                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5319                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5320                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5321                                                                 }
5322                                                         }
5323                                                 }
5324                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5325                                         }
5326                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5327                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5328                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5329                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5330                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5331                                                         }
5332                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5333                                                         net->mtu = paddrp->spp_pathmtu + ovh;
5334                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5335                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5336                                                         }
5337                                                 }
5338                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5339                                         }
5340                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5341                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5342                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5343                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5344                                                         }
5345                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5346                                                 }
5347                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5348                                         }
5349                                         if (paddrp->spp_flags & SPP_DSCP) {
5350                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5351                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5352                                                         net->dscp |= 0x01;
5353                                                 }
5354                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5355                                                 stcb->asoc.default_dscp |= 0x01;
5356                                         }
5357 #ifdef INET6
5358                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5359                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5360                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5361                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5362                                                                 net->flowlabel |= 0x80000000;
5363                                                         }
5364                                                 }
5365                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5366                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5367                                         }
5368 #endif
5369                                 }
5370                                 SCTP_TCB_UNLOCK(stcb);
5371                         } else {
5372                                 /************************NO TCB, SET TO default stuff ******************/
5373                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5374                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5375                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5376                                         SCTP_INP_WLOCK(inp);
5377                                         /*
5378                                          * For the TOS/FLOWLABEL stuff you
5379                                          * set it with the options on the
5380                                          * socket
5381                                          */
5382                                         if (paddrp->spp_pathmaxrxt != 0) {
5383                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5384                                         }
5385                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5386                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5387                                         else if (paddrp->spp_hbinterval != 0) {
5388                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5389                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5390                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5391                                         }
5392                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5393                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5394                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5395                                                 } else if (paddrp->spp_hbinterval) {
5396                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5397                                                 }
5398                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5399                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5400                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5401                                         }
5402                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5403                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5404                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5405                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5406                                         }
5407                                         if (paddrp->spp_flags & SPP_DSCP) {
5408                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5409                                                 inp->sctp_ep.default_dscp |= 0x01;
5410                                         }
5411 #ifdef INET6
5412                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5413                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5414                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5415                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5416                                                 }
5417                                         }
5418 #endif
5419                                         SCTP_INP_WUNLOCK(inp);
5420                                 } else {
5421                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5422                                         error = EINVAL;
5423                                 }
5424                         }
5425                         break;
5426                 }
5427         case SCTP_RTOINFO:
5428                 {
5429                         struct sctp_rtoinfo *srto;
5430                         uint32_t new_init, new_min, new_max;
5431
5432                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5433                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5434
5435                         if (stcb) {
5436                                 if (srto->srto_initial)
5437                                         new_init = srto->srto_initial;
5438                                 else
5439                                         new_init = stcb->asoc.initial_rto;
5440                                 if (srto->srto_max)
5441                                         new_max = srto->srto_max;
5442                                 else
5443                                         new_max = stcb->asoc.maxrto;
5444                                 if (srto->srto_min)
5445                                         new_min = srto->srto_min;
5446                                 else
5447                                         new_min = stcb->asoc.minrto;
5448                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5449                                         stcb->asoc.initial_rto = new_init;
5450                                         stcb->asoc.maxrto = new_max;
5451                                         stcb->asoc.minrto = new_min;
5452                                 } else {
5453                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5454                                         error = EINVAL;
5455                                 }
5456                                 SCTP_TCB_UNLOCK(stcb);
5457                         } else {
5458                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5459                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5460                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5461                                         SCTP_INP_WLOCK(inp);
5462                                         if (srto->srto_initial)
5463                                                 new_init = srto->srto_initial;
5464                                         else
5465                                                 new_init = inp->sctp_ep.initial_rto;
5466                                         if (srto->srto_max)
5467                                                 new_max = srto->srto_max;
5468                                         else
5469                                                 new_max = inp->sctp_ep.sctp_maxrto;
5470                                         if (srto->srto_min)
5471                                                 new_min = srto->srto_min;
5472                                         else
5473                                                 new_min = inp->sctp_ep.sctp_minrto;
5474                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5475                                                 inp->sctp_ep.initial_rto = new_init;
5476                                                 inp->sctp_ep.sctp_maxrto = new_max;
5477                                                 inp->sctp_ep.sctp_minrto = new_min;
5478                                         } else {
5479                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5480                                                 error = EINVAL;
5481                                         }
5482                                         SCTP_INP_WUNLOCK(inp);
5483                                 } else {
5484                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5485                                         error = EINVAL;
5486                                 }
5487                         }
5488                         break;
5489                 }
5490         case SCTP_ASSOCINFO:
5491                 {
5492                         struct sctp_assocparams *sasoc;
5493
5494                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5495                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5496                         if (sasoc->sasoc_cookie_life) {
5497                                 /* boundary check the cookie life */
5498                                 if (sasoc->sasoc_cookie_life < 1000)
5499                                         sasoc->sasoc_cookie_life = 1000;
5500                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5501                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5502                                 }
5503                         }
5504                         if (stcb) {
5505                                 if (sasoc->sasoc_asocmaxrxt)
5506                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5507                                 if (sasoc->sasoc_cookie_life) {
5508                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5509                                 }
5510                                 SCTP_TCB_UNLOCK(stcb);
5511                         } else {
5512                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5513                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5514                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5515                                         SCTP_INP_WLOCK(inp);
5516                                         if (sasoc->sasoc_asocmaxrxt)
5517                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5518                                         if (sasoc->sasoc_cookie_life) {
5519                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5520                                         }
5521                                         SCTP_INP_WUNLOCK(inp);
5522                                 } else {
5523                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5524                                         error = EINVAL;
5525                                 }
5526                         }
5527                         break;
5528                 }
5529         case SCTP_INITMSG:
5530                 {
5531                         struct sctp_initmsg *sinit;
5532
5533                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5534                         SCTP_INP_WLOCK(inp);
5535                         if (sinit->sinit_num_ostreams)
5536                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5537
5538                         if (sinit->sinit_max_instreams)
5539                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5540
5541                         if (sinit->sinit_max_attempts)
5542                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5543
5544                         if (sinit->sinit_max_init_timeo)
5545                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5546                         SCTP_INP_WUNLOCK(inp);
5547                         break;
5548                 }
5549         case SCTP_PRIMARY_ADDR:
5550                 {
5551                         struct sctp_setprim *spa;
5552                         struct sctp_nets *net;
5553                         struct sockaddr *addr;
5554
5555 #if defined(INET) && defined(INET6)
5556                         struct sockaddr_in sin_store;
5557
5558 #endif
5559
5560                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5561                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5562
5563 #if defined(INET) && defined(INET6)
5564                         if (spa->ssp_addr.ss_family == AF_INET6) {
5565                                 struct sockaddr_in6 *sin6;
5566
5567                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5568                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5569                                         in6_sin6_2_sin(&sin_store, sin6);
5570                                         addr = (struct sockaddr *)&sin_store;
5571                                 } else {
5572                                         addr = (struct sockaddr *)&spa->ssp_addr;
5573                                 }
5574                         } else {
5575                                 addr = (struct sockaddr *)&spa->ssp_addr;
5576                         }
5577 #else
5578                         addr = (struct sockaddr *)&spa->ssp_addr;
5579 #endif
5580                         if (stcb != NULL) {
5581                                 net = sctp_findnet(stcb, addr);
5582                         } else {
5583                                 /*
5584                                  * We increment here since
5585                                  * sctp_findassociation_ep_addr() wil do a
5586                                  * decrement if it finds the stcb as long as
5587                                  * the locked tcb (last argument) is NOT a
5588                                  * TCB.. aka NULL.
5589                                  */
5590                                 net = NULL;
5591                                 SCTP_INP_INCR_REF(inp);
5592                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5593                                     &net, NULL, NULL);
5594                                 if (stcb == NULL) {
5595                                         SCTP_INP_DECR_REF(inp);
5596                                 }
5597                         }
5598
5599                         if ((stcb != NULL) && (net != NULL)) {
5600                                 if ((net != stcb->asoc.primary_destination) &&
5601                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5602                                         /* Ok we need to set it */
5603                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5604                                                 if ((stcb->asoc.alternate) &&
5605                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5606                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5607                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5608                                                         stcb->asoc.alternate = NULL;
5609                                                 }
5610                                         }
5611                                 }
5612                         } else {
5613                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5614                                 error = EINVAL;
5615                         }
5616                         if (stcb != NULL) {
5617                                 SCTP_TCB_UNLOCK(stcb);
5618                         }
5619                         break;
5620                 }
5621         case SCTP_SET_DYNAMIC_PRIMARY:
5622                 {
5623                         union sctp_sockstore *ss;
5624
5625                         error = priv_check(curthread,
5626                             PRIV_NETINET_RESERVEDPORT);
5627                         if (error)
5628                                 break;
5629
5630                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5631                         /* SUPER USER CHECK? */
5632                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5633                         break;
5634                 }
5635         case SCTP_SET_PEER_PRIMARY_ADDR:
5636                 {
5637                         struct sctp_setpeerprim *sspp;
5638                         struct sockaddr *addr;
5639
5640 #if defined(INET) && defined(INET6)
5641                         struct sockaddr_in sin_store;
5642
5643 #endif
5644
5645                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5646                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5647                         if (stcb != NULL) {
5648                                 struct sctp_ifa *ifa;
5649
5650 #if defined(INET) && defined(INET6)
5651                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5652                                         struct sockaddr_in6 *sin6;
5653
5654                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5655                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5656                                                 in6_sin6_2_sin(&sin_store, sin6);
5657                                                 addr = (struct sockaddr *)&sin_store;
5658                                         } else {
5659                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5660                                         }
5661                                 } else {
5662                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5663                                 }
5664 #else
5665                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5666 #endif
5667                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5668                                 if (ifa == NULL) {
5669                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5670                                         error = EINVAL;
5671                                         goto out_of_it;
5672                                 }
5673                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5674                                         /*
5675                                          * Must validate the ifa found is in
5676                                          * our ep
5677                                          */
5678                                         struct sctp_laddr *laddr;
5679                                         int found = 0;
5680
5681                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5682                                                 if (laddr->ifa == NULL) {
5683                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5684                                                             __FUNCTION__);
5685                                                         continue;
5686                                                 }
5687                                                 if (laddr->ifa == ifa) {
5688                                                         found = 1;
5689                                                         break;
5690                                                 }
5691                                         }
5692                                         if (!found) {
5693                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5694                                                 error = EINVAL;
5695                                                 goto out_of_it;
5696                                         }
5697                                 } else {
5698                                         switch (addr->sa_family) {
5699 #ifdef INET
5700                                         case AF_INET:
5701                                                 {
5702                                                         struct sockaddr_in *sin;
5703
5704                                                         sin = (struct sockaddr_in *)addr;
5705                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5706                                                             &sin->sin_addr) != 0) {
5707                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5708                                                                 error = EINVAL;
5709                                                                 goto out_of_it;
5710                                                         }
5711                                                         break;
5712                                                 }
5713 #endif
5714 #ifdef INET6
5715                                         case AF_INET6:
5716                                                 {
5717                                                         struct sockaddr_in6 *sin6;
5718
5719                                                         sin6 = (struct sockaddr_in6 *)addr;
5720                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5721                                                             &sin6->sin6_addr) != 0) {
5722                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5723                                                                 error = EINVAL;
5724                                                                 goto out_of_it;
5725                                                         }
5726                                                         break;
5727                                                 }
5728 #endif
5729                                         default:
5730                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5731                                                 error = EINVAL;
5732                                                 goto out_of_it;
5733                                         }
5734                                 }
5735                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5736                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5737                                         error = EINVAL;
5738                                 }
5739                 out_of_it:
5740                                 SCTP_TCB_UNLOCK(stcb);
5741                         } else {
5742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5743                                 error = EINVAL;
5744                         }
5745                         break;
5746                 }
5747         case SCTP_BINDX_ADD_ADDR:
5748                 {
5749                         struct sctp_getaddresses *addrs;
5750                         struct thread *td;
5751
5752                         td = (struct thread *)p;
5753                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5754                             optsize);
5755 #ifdef INET
5756                         if (addrs->addr->sa_family == AF_INET) {
5757                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5759                                         error = EINVAL;
5760                                         break;
5761                                 }
5762                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5763                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5764                                         break;
5765                                 }
5766                         } else
5767 #endif
5768 #ifdef INET6
5769                         if (addrs->addr->sa_family == AF_INET6) {
5770                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5771                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5772                                         error = EINVAL;
5773                                         break;
5774                                 }
5775                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5776                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5777                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5778                                         break;
5779                                 }
5780                         } else
5781 #endif
5782                         {
5783                                 error = EAFNOSUPPORT;
5784                                 break;
5785                         }
5786                         sctp_bindx_add_address(so, inp, addrs->addr,
5787                             addrs->sget_assoc_id, vrf_id,
5788                             &error, p);
5789                         break;
5790                 }
5791         case SCTP_BINDX_REM_ADDR:
5792                 {
5793                         struct sctp_getaddresses *addrs;
5794                         struct thread *td;
5795
5796                         td = (struct thread *)p;
5797
5798                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5799 #ifdef INET
5800                         if (addrs->addr->sa_family == AF_INET) {
5801                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5802                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5803                                         error = EINVAL;
5804                                         break;
5805                                 }
5806                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5807                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5808                                         break;
5809                                 }
5810                         } else
5811 #endif
5812 #ifdef INET6
5813                         if (addrs->addr->sa_family == AF_INET6) {
5814                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5815                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5816                                         error = EINVAL;
5817                                         break;
5818                                 }
5819                                 if (td != NULL &&
5820                                     (error = prison_local_ip6(td->td_ucred,
5821                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5822                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5823                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5824                                         break;
5825                                 }
5826                         } else
5827 #endif
5828                         {
5829                                 error = EAFNOSUPPORT;
5830                                 break;
5831                         }
5832                         sctp_bindx_delete_address(inp, addrs->addr,
5833                             addrs->sget_assoc_id, vrf_id,
5834                             &error);
5835                         break;
5836                 }
5837         case SCTP_EVENT:
5838                 {
5839                         struct sctp_event *event;
5840                         uint32_t event_type;
5841
5842                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5843                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5844                         switch (event->se_type) {
5845                         case SCTP_ASSOC_CHANGE:
5846                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5847                                 break;
5848                         case SCTP_PEER_ADDR_CHANGE:
5849                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5850                                 break;
5851                         case SCTP_REMOTE_ERROR:
5852                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5853                                 break;
5854                         case SCTP_SEND_FAILED:
5855                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5856                                 break;
5857                         case SCTP_SHUTDOWN_EVENT:
5858                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5859                                 break;
5860                         case SCTP_ADAPTATION_INDICATION:
5861                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5862                                 break;
5863                         case SCTP_PARTIAL_DELIVERY_EVENT:
5864                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5865                                 break;
5866                         case SCTP_AUTHENTICATION_EVENT:
5867                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5868                                 break;
5869                         case SCTP_STREAM_RESET_EVENT:
5870                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5871                                 break;
5872                         case SCTP_SENDER_DRY_EVENT:
5873                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5874                                 break;
5875                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5876                                 event_type = 0;
5877                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5878                                 error = ENOTSUP;
5879                                 break;
5880                         case SCTP_ASSOC_RESET_EVENT:
5881                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5882                                 break;
5883                         case SCTP_STREAM_CHANGE_EVENT:
5884                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5885                                 break;
5886                         case SCTP_SEND_FAILED_EVENT:
5887                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5888                                 break;
5889                         default:
5890                                 event_type = 0;
5891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5892                                 error = EINVAL;
5893                                 break;
5894                         }
5895                         if (event_type > 0) {
5896                                 if (stcb) {
5897                                         if (event->se_on) {
5898                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5899                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5900                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5901                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5902                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5903                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5904                                                         }
5905                                                 }
5906                                         } else {
5907                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5908                                         }
5909                                         SCTP_TCB_UNLOCK(stcb);
5910                                 } else {
5911                                         /*
5912                                          * We don't want to send up a storm
5913                                          * of events, so return an error for
5914                                          * sender dry events
5915                                          */
5916                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5917                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5918                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5919                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5920                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5921                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5922                                                 error = ENOTSUP;
5923                                                 break;
5924                                         }
5925                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5926                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5927                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5928                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5929                                                 SCTP_INP_WLOCK(inp);
5930                                                 if (event->se_on) {
5931                                                         sctp_feature_on(inp, event_type);
5932                                                 } else {
5933                                                         sctp_feature_off(inp, event_type);
5934                                                 }
5935                                                 SCTP_INP_WUNLOCK(inp);
5936                                         }
5937                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5938                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5939                                                 SCTP_INP_RLOCK(inp);
5940                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5941                                                         SCTP_TCB_LOCK(stcb);
5942                                                         if (event->se_on) {
5943                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5944                                                         } else {
5945                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5946                                                         }
5947                                                         SCTP_TCB_UNLOCK(stcb);
5948                                                 }
5949                                                 SCTP_INP_RUNLOCK(inp);
5950                                         }
5951                                 }
5952                         }
5953                         break;
5954                 }
5955         case SCTP_RECVRCVINFO:
5956                 {
5957                         int *onoff;
5958
5959                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5960                         SCTP_INP_WLOCK(inp);
5961                         if (*onoff != 0) {
5962                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5963                         } else {
5964                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5965                         }
5966                         SCTP_INP_WUNLOCK(inp);
5967                         break;
5968                 }
5969         case SCTP_RECVNXTINFO:
5970                 {
5971                         int *onoff;
5972
5973                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5974                         SCTP_INP_WLOCK(inp);
5975                         if (*onoff != 0) {
5976                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5977                         } else {
5978                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5979                         }
5980                         SCTP_INP_WUNLOCK(inp);
5981                         break;
5982                 }
5983         case SCTP_DEFAULT_SNDINFO:
5984                 {
5985                         struct sctp_sndinfo *info;
5986                         uint16_t policy;
5987
5988                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5989                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5990
5991                         if (stcb) {
5992                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5993                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5994                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5995                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5996                                         stcb->asoc.def_send.sinfo_flags |= policy;
5997                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5998                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5999                                 } else {
6000                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6001                                         error = EINVAL;
6002                                 }
6003                                 SCTP_TCB_UNLOCK(stcb);
6004                         } else {
6005                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6006                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6007                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6008                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6009                                         SCTP_INP_WLOCK(inp);
6010                                         inp->def_send.sinfo_stream = info->snd_sid;
6011                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6012                                         inp->def_send.sinfo_flags = info->snd_flags;
6013                                         inp->def_send.sinfo_flags |= policy;
6014                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6015                                         inp->def_send.sinfo_context = info->snd_context;
6016                                         SCTP_INP_WUNLOCK(inp);
6017                                 }
6018                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6019                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6020                                         SCTP_INP_RLOCK(inp);
6021                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6022                                                 SCTP_TCB_LOCK(stcb);
6023                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6024                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6025                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6026                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6027                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6028                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6029                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6030                                                 }
6031                                                 SCTP_TCB_UNLOCK(stcb);
6032                                         }
6033                                         SCTP_INP_RUNLOCK(inp);
6034                                 }
6035                         }
6036                         break;
6037                 }
6038         case SCTP_DEFAULT_PRINFO:
6039                 {
6040                         struct sctp_default_prinfo *info;
6041
6042                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6043                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6044
6045                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6046                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6047                                 error = EINVAL;
6048                                 break;
6049                         }
6050                         if (stcb) {
6051                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6052                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6053                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6054                                 SCTP_TCB_UNLOCK(stcb);
6055                         } else {
6056                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6057                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6058                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6059                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6060                                         SCTP_INP_WLOCK(inp);
6061                                         inp->def_send.sinfo_flags &= 0xfff0;
6062                                         inp->def_send.sinfo_flags |= info->pr_policy;
6063                                         inp->def_send.sinfo_timetolive = info->pr_value;
6064                                         SCTP_INP_WUNLOCK(inp);
6065                                 }
6066                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6067                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6068                                         SCTP_INP_RLOCK(inp);
6069                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6070                                                 SCTP_TCB_LOCK(stcb);
6071                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6072                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6073                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6074                                                 SCTP_TCB_UNLOCK(stcb);
6075                                         }
6076                                         SCTP_INP_RUNLOCK(inp);
6077                                 }
6078                         }
6079                         break;
6080                 }
6081         case SCTP_PEER_ADDR_THLDS:
6082                 /* Applies to the specific association */
6083                 {
6084                         struct sctp_paddrthlds *thlds;
6085                         struct sctp_nets *net;
6086                         struct sockaddr *addr;
6087
6088 #if defined(INET) && defined(INET6)
6089                         struct sockaddr_in sin_store;
6090
6091 #endif
6092
6093                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6094                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6095
6096 #if defined(INET) && defined(INET6)
6097                         if (thlds->spt_address.ss_family == AF_INET6) {
6098                                 struct sockaddr_in6 *sin6;
6099
6100                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6101                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6102                                         in6_sin6_2_sin(&sin_store, sin6);
6103                                         addr = (struct sockaddr *)&sin_store;
6104                                 } else {
6105                                         addr = (struct sockaddr *)&thlds->spt_address;
6106                                 }
6107                         } else {
6108                                 addr = (struct sockaddr *)&thlds->spt_address;
6109                         }
6110 #else
6111                         addr = (struct sockaddr *)&thlds->spt_address;
6112 #endif
6113                         if (stcb != NULL) {
6114                                 net = sctp_findnet(stcb, addr);
6115                         } else {
6116                                 /*
6117                                  * We increment here since
6118                                  * sctp_findassociation_ep_addr() wil do a
6119                                  * decrement if it finds the stcb as long as
6120                                  * the locked tcb (last argument) is NOT a
6121                                  * TCB.. aka NULL.
6122                                  */
6123                                 net = NULL;
6124                                 SCTP_INP_INCR_REF(inp);
6125                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6126                                     &net, NULL, NULL);
6127                                 if (stcb == NULL) {
6128                                         SCTP_INP_DECR_REF(inp);
6129                                 }
6130                         }
6131                         if ((stcb != NULL) && (net == NULL)) {
6132 #ifdef INET
6133                                 if (addr->sa_family == AF_INET) {
6134
6135                                         struct sockaddr_in *sin;
6136
6137                                         sin = (struct sockaddr_in *)addr;
6138                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6139                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6140                                                 SCTP_TCB_UNLOCK(stcb);
6141                                                 error = EINVAL;
6142                                                 break;
6143                                         }
6144                                 } else
6145 #endif
6146 #ifdef INET6
6147                                 if (addr->sa_family == AF_INET6) {
6148                                         struct sockaddr_in6 *sin6;
6149
6150                                         sin6 = (struct sockaddr_in6 *)addr;
6151                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6152                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6153                                                 SCTP_TCB_UNLOCK(stcb);
6154                                                 error = EINVAL;
6155                                                 break;
6156                                         }
6157                                 } else
6158 #endif
6159                                 {
6160                                         error = EAFNOSUPPORT;
6161                                         SCTP_TCB_UNLOCK(stcb);
6162                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6163                                         break;
6164                                 }
6165                         }
6166                         if (stcb != NULL) {
6167                                 if (net != NULL) {
6168                                         if (net->dest_state & SCTP_ADDR_PF) {
6169                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
6170                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
6171                                                         net->dest_state &= ~SCTP_ADDR_PF;
6172                                                 }
6173                                         } else {
6174                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
6175                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
6176                                                         net->dest_state |= SCTP_ADDR_PF;
6177                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6178                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6179                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6180                                                 }
6181                                         }
6182                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6183                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
6184                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6185                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6186                                                 }
6187                                         } else {
6188                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
6189                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6190                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6191                                                 }
6192                                         }
6193                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6194                                         net->pf_threshold = thlds->spt_pathpfthld;
6195                                 } else {
6196                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6197                                                 if (net->dest_state & SCTP_ADDR_PF) {
6198                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
6199                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
6200                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6201                                                         }
6202                                                 } else {
6203                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
6204                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
6205                                                                 net->dest_state |= SCTP_ADDR_PF;
6206                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6207                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6208                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6209                                                         }
6210                                                 }
6211                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6212                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
6213                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6214                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6215                                                         }
6216                                                 } else {
6217                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
6218                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6219                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6220                                                         }
6221                                                 }
6222                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6223                                                 net->pf_threshold = thlds->spt_pathpfthld;
6224                                         }
6225                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6226                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6227                                 }
6228                         } else {
6229                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6230                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6231                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6232                                         SCTP_INP_WLOCK(inp);
6233                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6234                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6235                                         SCTP_INP_WUNLOCK(inp);
6236                                 } else {
6237                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6238                                         error = EINVAL;
6239                                 }
6240                         }
6241                         break;
6242                 }
6243         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6244                 {
6245                         struct sctp_udpencaps *encaps;
6246                         struct sctp_nets *net;
6247                         struct sockaddr *addr;
6248
6249 #if defined(INET) && defined(INET6)
6250                         struct sockaddr_in sin_store;
6251
6252 #endif
6253
6254                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6255                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6256
6257 #if defined(INET) && defined(INET6)
6258                         if (encaps->sue_address.ss_family == AF_INET6) {
6259                                 struct sockaddr_in6 *sin6;
6260
6261                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6262                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6263                                         in6_sin6_2_sin(&sin_store, sin6);
6264                                         addr = (struct sockaddr *)&sin_store;
6265                                 } else {
6266                                         addr = (struct sockaddr *)&encaps->sue_address;
6267                                 }
6268                         } else {
6269                                 addr = (struct sockaddr *)&encaps->sue_address;
6270                         }
6271 #else
6272                         addr = (struct sockaddr *)&encaps->sue_address;
6273 #endif
6274                         if (stcb != NULL) {
6275                                 net = sctp_findnet(stcb, addr);
6276                         } else {
6277                                 /*
6278                                  * We increment here since
6279                                  * sctp_findassociation_ep_addr() wil do a
6280                                  * decrement if it finds the stcb as long as
6281                                  * the locked tcb (last argument) is NOT a
6282                                  * TCB.. aka NULL.
6283                                  */
6284                                 net = NULL;
6285                                 SCTP_INP_INCR_REF(inp);
6286                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6287                                 if (stcb == NULL) {
6288                                         SCTP_INP_DECR_REF(inp);
6289                                 }
6290                         }
6291                         if ((stcb != NULL) && (net == NULL)) {
6292 #ifdef INET
6293                                 if (addr->sa_family == AF_INET) {
6294
6295                                         struct sockaddr_in *sin;
6296
6297                                         sin = (struct sockaddr_in *)addr;
6298                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6299                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6300                                                 SCTP_TCB_UNLOCK(stcb);
6301                                                 error = EINVAL;
6302                                                 break;
6303                                         }
6304                                 } else
6305 #endif
6306 #ifdef INET6
6307                                 if (addr->sa_family == AF_INET6) {
6308                                         struct sockaddr_in6 *sin6;
6309
6310                                         sin6 = (struct sockaddr_in6 *)addr;
6311                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6312                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6313                                                 SCTP_TCB_UNLOCK(stcb);
6314                                                 error = EINVAL;
6315                                                 break;
6316                                         }
6317                                 } else
6318 #endif
6319                                 {
6320                                         error = EAFNOSUPPORT;
6321                                         SCTP_TCB_UNLOCK(stcb);
6322                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6323                                         break;
6324                                 }
6325                         }
6326                         if (stcb != NULL) {
6327                                 if (net != NULL) {
6328                                         net->port = encaps->sue_port;
6329                                 } else {
6330                                         stcb->asoc.port = encaps->sue_port;
6331                                 }
6332                                 SCTP_TCB_UNLOCK(stcb);
6333                         } else {
6334                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6335                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6336                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6337                                         SCTP_INP_WLOCK(inp);
6338                                         inp->sctp_ep.port = encaps->sue_port;
6339                                         SCTP_INP_WUNLOCK(inp);
6340                                 } else {
6341                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6342                                         error = EINVAL;
6343                                 }
6344                         }
6345                         break;
6346                 }
6347         case SCTP_ECN_SUPPORTED:
6348                 {
6349                         struct sctp_assoc_value *av;
6350
6351                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6352                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6353
6354                         if (stcb) {
6355                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6356                                 error = EINVAL;
6357                                 SCTP_TCB_UNLOCK(stcb);
6358                         } else {
6359                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6360                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6361                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6362                                         SCTP_INP_WLOCK(inp);
6363                                         if (av->assoc_value == 0) {
6364                                                 inp->ecn_supported = 0;
6365                                         } else {
6366                                                 inp->ecn_supported = 1;
6367                                         }
6368                                         SCTP_INP_WUNLOCK(inp);
6369                                 } else {
6370                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6371                                         error = EINVAL;
6372                                 }
6373                         }
6374                         break;
6375                 }
6376         case SCTP_PR_SUPPORTED:
6377                 {
6378                         struct sctp_assoc_value *av;
6379
6380                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6381                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6382
6383                         if (stcb) {
6384                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6385                                 error = EINVAL;
6386                                 SCTP_TCB_UNLOCK(stcb);
6387                         } else {
6388                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6389                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6390                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6391                                         SCTP_INP_WLOCK(inp);
6392                                         if (av->assoc_value == 0) {
6393                                                 inp->prsctp_supported = 0;
6394                                         } else {
6395                                                 inp->prsctp_supported = 1;
6396                                         }
6397                                         SCTP_INP_WUNLOCK(inp);
6398                                 } else {
6399                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6400                                         error = EINVAL;
6401                                 }
6402                         }
6403                         break;
6404                 }
6405         case SCTP_AUTH_SUPPORTED:
6406                 {
6407                         struct sctp_assoc_value *av;
6408
6409                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6410                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6411
6412                         if (stcb) {
6413                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6414                                 error = EINVAL;
6415                                 SCTP_TCB_UNLOCK(stcb);
6416                         } else {
6417                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6418                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6419                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6420                                         if ((av->assoc_value == 0) &&
6421                                             (inp->asconf_supported == 1)) {
6422                                                 /*
6423                                                  * AUTH is required for
6424                                                  * ASCONF
6425                                                  */
6426                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6427                                                 error = EINVAL;
6428                                         } else {
6429                                                 SCTP_INP_WLOCK(inp);
6430                                                 if (av->assoc_value == 0) {
6431                                                         inp->auth_supported = 0;
6432                                                 } else {
6433                                                         inp->auth_supported = 1;
6434                                                 }
6435                                                 SCTP_INP_WUNLOCK(inp);
6436                                         }
6437                                 } else {
6438                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6439                                         error = EINVAL;
6440                                 }
6441                         }
6442                         break;
6443                 }
6444         case SCTP_ASCONF_SUPPORTED:
6445                 {
6446                         struct sctp_assoc_value *av;
6447
6448                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6449                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6450
6451                         if (stcb) {
6452                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6453                                 error = EINVAL;
6454                                 SCTP_TCB_UNLOCK(stcb);
6455                         } else {
6456                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6457                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6458                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6459                                         if ((av->assoc_value != 0) &&
6460                                             (inp->auth_supported == 0)) {
6461                                                 /*
6462                                                  * AUTH is required for
6463                                                  * ASCONF
6464                                                  */
6465                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6466                                                 error = EINVAL;
6467                                         } else {
6468                                                 SCTP_INP_WLOCK(inp);
6469                                                 if (av->assoc_value == 0) {
6470                                                         inp->asconf_supported = 0;
6471                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6472                                                             inp->sctp_ep.local_auth_chunks);
6473                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6474                                                             inp->sctp_ep.local_auth_chunks);
6475                                                 } else {
6476                                                         inp->asconf_supported = 1;
6477                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6478                                                             inp->sctp_ep.local_auth_chunks);
6479                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6480                                                             inp->sctp_ep.local_auth_chunks);
6481                                                 }
6482                                                 SCTP_INP_WUNLOCK(inp);
6483                                         }
6484                                 } else {
6485                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6486                                         error = EINVAL;
6487                                 }
6488                         }
6489                         break;
6490                 }
6491         case SCTP_RECONFIG_SUPPORTED:
6492                 {
6493                         struct sctp_assoc_value *av;
6494
6495                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6496                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6497
6498                         if (stcb) {
6499                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6500                                 error = EINVAL;
6501                                 SCTP_TCB_UNLOCK(stcb);
6502                         } else {
6503                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6504                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6505                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6506                                         SCTP_INP_WLOCK(inp);
6507                                         if (av->assoc_value == 0) {
6508                                                 inp->reconfig_supported = 0;
6509                                         } else {
6510                                                 inp->reconfig_supported = 1;
6511                                         }
6512                                         SCTP_INP_WUNLOCK(inp);
6513                                 } else {
6514                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6515                                         error = EINVAL;
6516                                 }
6517                         }
6518                         break;
6519                 }
6520         case SCTP_NRSACK_SUPPORTED:
6521                 {
6522                         struct sctp_assoc_value *av;
6523
6524                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6525                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6526
6527                         if (stcb) {
6528                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6529                                 error = EINVAL;
6530                                 SCTP_TCB_UNLOCK(stcb);
6531                         } else {
6532                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6533                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6534                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6535                                         SCTP_INP_WLOCK(inp);
6536                                         if (av->assoc_value == 0) {
6537                                                 inp->nrsack_supported = 0;
6538                                         } else {
6539                                                 inp->nrsack_supported = 1;
6540                                         }
6541                                         SCTP_INP_WUNLOCK(inp);
6542                                 } else {
6543                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6544                                         error = EINVAL;
6545                                 }
6546                         }
6547                         break;
6548                 }
6549         case SCTP_PKTDROP_SUPPORTED:
6550                 {
6551                         struct sctp_assoc_value *av;
6552
6553                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6554                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6555
6556                         if (stcb) {
6557                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6558                                 error = EINVAL;
6559                                 SCTP_TCB_UNLOCK(stcb);
6560                         } else {
6561                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6562                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6563                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6564                                         SCTP_INP_WLOCK(inp);
6565                                         if (av->assoc_value == 0) {
6566                                                 inp->pktdrop_supported = 0;
6567                                         } else {
6568                                                 inp->pktdrop_supported = 1;
6569                                         }
6570                                         SCTP_INP_WUNLOCK(inp);
6571                                 } else {
6572                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6573                                         error = EINVAL;
6574                                 }
6575                         }
6576                         break;
6577                 }
6578         default:
6579                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6580                 error = ENOPROTOOPT;
6581                 break;
6582         }                       /* end switch (opt) */
6583         return (error);
6584 }
6585
6586 int
6587 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6588 {
6589         void *optval = NULL;
6590         size_t optsize = 0;
6591         void *p;
6592         int error = 0;
6593
6594         if (sopt->sopt_level != IPPROTO_SCTP) {
6595                 /* wrong proto level... send back up to IP */
6596 #ifdef INET6
6597                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6598                         error = ip6_ctloutput(so, sopt);
6599 #endif                          /* INET6 */
6600 #if defined(INET) && defined(INET6)
6601                 else
6602 #endif
6603 #ifdef INET
6604                         error = ip_ctloutput(so, sopt);
6605 #endif
6606                 return (error);
6607         }
6608         optsize = sopt->sopt_valsize;
6609         if (optsize) {
6610                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6611                 if (optval == NULL) {
6612                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6613                         return (ENOBUFS);
6614                 }
6615                 error = sooptcopyin(sopt, optval, optsize, optsize);
6616                 if (error) {
6617                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6618                         goto out;
6619                 }
6620         }
6621         p = (void *)sopt->sopt_td;
6622         if (sopt->sopt_dir == SOPT_SET) {
6623                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6624         } else if (sopt->sopt_dir == SOPT_GET) {
6625                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6626         } else {
6627                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6628                 error = EINVAL;
6629         }
6630         if ((error == 0) && (optval != NULL)) {
6631                 error = sooptcopyout(sopt, optval, optsize);
6632                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6633         } else if (optval != NULL) {
6634                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6635         }
6636 out:
6637         return (error);
6638 }
6639
6640 #ifdef INET
6641 static int
6642 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6643 {
6644         int error = 0;
6645         int create_lock_on = 0;
6646         uint32_t vrf_id;
6647         struct sctp_inpcb *inp;
6648         struct sctp_tcb *stcb = NULL;
6649
6650         inp = (struct sctp_inpcb *)so->so_pcb;
6651         if (inp == NULL) {
6652                 /* I made the same as TCP since we are not setup? */
6653                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6654                 return (ECONNRESET);
6655         }
6656         if (addr == NULL) {
6657                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6658                 return EINVAL;
6659         }
6660         switch (addr->sa_family) {
6661 #ifdef INET6
6662         case AF_INET6:
6663                 {
6664                         struct sockaddr_in6 *sin6p;
6665
6666                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6668                                 return (EINVAL);
6669                         }
6670                         sin6p = (struct sockaddr_in6 *)addr;
6671                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6672                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6673                                 return (error);
6674                         }
6675                         break;
6676                 }
6677 #endif
6678 #ifdef INET
6679         case AF_INET:
6680                 {
6681                         struct sockaddr_in *sinp;
6682
6683                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6684                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6685                                 return (EINVAL);
6686                         }
6687                         sinp = (struct sockaddr_in *)addr;
6688                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6689                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6690                                 return (error);
6691                         }
6692                         break;
6693                 }
6694 #endif
6695         default:
6696                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6697                 return (EAFNOSUPPORT);
6698         }
6699         SCTP_INP_INCR_REF(inp);
6700         SCTP_ASOC_CREATE_LOCK(inp);
6701         create_lock_on = 1;
6702
6703
6704         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6705             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6706                 /* Should I really unlock ? */
6707                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6708                 error = EFAULT;
6709                 goto out_now;
6710         }
6711 #ifdef INET6
6712         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6713             (addr->sa_family == AF_INET6)) {
6714                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6715                 error = EINVAL;
6716                 goto out_now;
6717         }
6718 #endif
6719         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6720             SCTP_PCB_FLAGS_UNBOUND) {
6721                 /* Bind a ephemeral port */
6722                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6723                 if (error) {
6724                         goto out_now;
6725                 }
6726         }
6727         /* Now do we connect? */
6728         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6729             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6730                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6731                 error = EINVAL;
6732                 goto out_now;
6733         }
6734         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6735             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6736                 /* We are already connected AND the TCP model */
6737                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6738                 error = EADDRINUSE;
6739                 goto out_now;
6740         }
6741         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6742                 SCTP_INP_RLOCK(inp);
6743                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6744                 SCTP_INP_RUNLOCK(inp);
6745         } else {
6746                 /*
6747                  * We increment here since sctp_findassociation_ep_addr()
6748                  * will do a decrement if it finds the stcb as long as the
6749                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6750                  */
6751                 SCTP_INP_INCR_REF(inp);
6752                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6753                 if (stcb == NULL) {
6754                         SCTP_INP_DECR_REF(inp);
6755                 } else {
6756                         SCTP_TCB_UNLOCK(stcb);
6757                 }
6758         }
6759         if (stcb != NULL) {
6760                 /* Already have or am bring up an association */
6761                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6762                 error = EALREADY;
6763                 goto out_now;
6764         }
6765         vrf_id = inp->def_vrf_id;
6766         /* We are GOOD to go */
6767         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6768         if (stcb == NULL) {
6769                 /* Gak! no memory */
6770                 goto out_now;
6771         }
6772         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6773                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6774                 /* Set the connected flag so we can queue data */
6775                 soisconnecting(so);
6776         }
6777         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6778         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6779
6780         /* initialize authentication parameters for the assoc */
6781         sctp_initialize_auth_params(inp, stcb);
6782
6783         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6784         SCTP_TCB_UNLOCK(stcb);
6785 out_now:
6786         if (create_lock_on) {
6787                 SCTP_ASOC_CREATE_UNLOCK(inp);
6788         }
6789         SCTP_INP_DECR_REF(inp);
6790         return (error);
6791 }
6792
6793 #endif
6794
6795 int
6796 sctp_listen(struct socket *so, int backlog, struct thread *p)
6797 {
6798         /*
6799          * Note this module depends on the protocol processing being called
6800          * AFTER any socket level flags and backlog are applied to the
6801          * socket. The traditional way that the socket flags are applied is
6802          * AFTER protocol processing. We have made a change to the
6803          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6804          * place if the socket API for SCTP is to work properly.
6805          */
6806
6807         int error = 0;
6808         struct sctp_inpcb *inp;
6809
6810         inp = (struct sctp_inpcb *)so->so_pcb;
6811         if (inp == NULL) {
6812                 /* I made the same as TCP since we are not setup? */
6813                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6814                 return (ECONNRESET);
6815         }
6816         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6817                 /* See if we have a listener */
6818                 struct sctp_inpcb *tinp;
6819                 union sctp_sockstore store;
6820
6821                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6822                         /* not bound all */
6823                         struct sctp_laddr *laddr;
6824
6825                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6826                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6827                                 switch (store.sa.sa_family) {
6828 #ifdef INET
6829                                 case AF_INET:
6830                                         store.sin.sin_port = inp->sctp_lport;
6831                                         break;
6832 #endif
6833 #ifdef INET6
6834                                 case AF_INET6:
6835                                         store.sin6.sin6_port = inp->sctp_lport;
6836                                         break;
6837 #endif
6838                                 default:
6839                                         break;
6840                                 }
6841                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6842                                 if (tinp && (tinp != inp) &&
6843                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6844                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6845                                     (tinp->sctp_socket->so_qlimit)) {
6846                                         /*
6847                                          * we have a listener already and
6848                                          * its not this inp.
6849                                          */
6850                                         SCTP_INP_DECR_REF(tinp);
6851                                         return (EADDRINUSE);
6852                                 } else if (tinp) {
6853                                         SCTP_INP_DECR_REF(tinp);
6854                                 }
6855                         }
6856                 } else {
6857                         /* Setup a local addr bound all */
6858                         memset(&store, 0, sizeof(store));
6859 #ifdef INET6
6860                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6861                                 store.sa.sa_family = AF_INET6;
6862                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6863                         }
6864 #endif
6865 #ifdef INET
6866                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6867                                 store.sa.sa_family = AF_INET;
6868                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6869                         }
6870 #endif
6871                         switch (store.sa.sa_family) {
6872 #ifdef INET
6873                         case AF_INET:
6874                                 store.sin.sin_port = inp->sctp_lport;
6875                                 break;
6876 #endif
6877 #ifdef INET6
6878                         case AF_INET6:
6879                                 store.sin6.sin6_port = inp->sctp_lport;
6880                                 break;
6881 #endif
6882                         default:
6883                                 break;
6884                         }
6885                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6886                         if (tinp && (tinp != inp) &&
6887                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6888                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6889                             (tinp->sctp_socket->so_qlimit)) {
6890                                 /*
6891                                  * we have a listener already and its not
6892                                  * this inp.
6893                                  */
6894                                 SCTP_INP_DECR_REF(tinp);
6895                                 return (EADDRINUSE);
6896                         } else if (tinp) {
6897                                 SCTP_INP_DECR_REF(inp);
6898                         }
6899                 }
6900         }
6901         SCTP_INP_RLOCK(inp);
6902 #ifdef SCTP_LOCK_LOGGING
6903         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6904                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6905         }
6906 #endif
6907         SOCK_LOCK(so);
6908         error = solisten_proto_check(so);
6909         if (error) {
6910                 SOCK_UNLOCK(so);
6911                 SCTP_INP_RUNLOCK(inp);
6912                 return (error);
6913         }
6914         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6915             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6916                 /*
6917                  * The unlucky case - We are in the tcp pool with this guy.
6918                  * - Someone else is in the main inp slot. - We must move
6919                  * this guy (the listener) to the main slot - We must then
6920                  * move the guy that was listener to the TCP Pool.
6921                  */
6922                 if (sctp_swap_inpcb_for_listen(inp)) {
6923                         goto in_use;
6924                 }
6925         }
6926         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6927             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6928                 /* We are already connected AND the TCP model */
6929 in_use:
6930                 SCTP_INP_RUNLOCK(inp);
6931                 SOCK_UNLOCK(so);
6932                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6933                 return (EADDRINUSE);
6934         }
6935         SCTP_INP_RUNLOCK(inp);
6936         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6937                 /* We must do a bind. */
6938                 SOCK_UNLOCK(so);
6939                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6940                         /* bind error, probably perm */
6941                         return (error);
6942                 }
6943                 SOCK_LOCK(so);
6944         }
6945         /* It appears for 7.0 and on, we must always call this. */
6946         solisten_proto(so, backlog);
6947         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6948                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6949                 so->so_options &= ~SO_ACCEPTCONN;
6950         }
6951         if (backlog == 0) {
6952                 /* turning off listen */
6953                 so->so_options &= ~SO_ACCEPTCONN;
6954         }
6955         SOCK_UNLOCK(so);
6956         return (error);
6957 }
6958
6959 static int sctp_defered_wakeup_cnt = 0;
6960
6961 int
6962 sctp_accept(struct socket *so, struct sockaddr **addr)
6963 {
6964         struct sctp_tcb *stcb;
6965         struct sctp_inpcb *inp;
6966         union sctp_sockstore store;
6967
6968 #ifdef INET6
6969         int error;
6970
6971 #endif
6972         inp = (struct sctp_inpcb *)so->so_pcb;
6973
6974         if (inp == NULL) {
6975                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6976                 return (ECONNRESET);
6977         }
6978         SCTP_INP_RLOCK(inp);
6979         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6980                 SCTP_INP_RUNLOCK(inp);
6981                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6982                 return (EOPNOTSUPP);
6983         }
6984         if (so->so_state & SS_ISDISCONNECTED) {
6985                 SCTP_INP_RUNLOCK(inp);
6986                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6987                 return (ECONNABORTED);
6988         }
6989         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6990         if (stcb == NULL) {
6991                 SCTP_INP_RUNLOCK(inp);
6992                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6993                 return (ECONNRESET);
6994         }
6995         SCTP_TCB_LOCK(stcb);
6996         SCTP_INP_RUNLOCK(inp);
6997         store = stcb->asoc.primary_destination->ro._l_addr;
6998         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6999         SCTP_TCB_UNLOCK(stcb);
7000         switch (store.sa.sa_family) {
7001 #ifdef INET
7002         case AF_INET:
7003                 {
7004                         struct sockaddr_in *sin;
7005
7006                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7007                         if (sin == NULL)
7008                                 return (ENOMEM);
7009                         sin->sin_family = AF_INET;
7010                         sin->sin_len = sizeof(*sin);
7011                         sin->sin_port = store.sin.sin_port;
7012                         sin->sin_addr = store.sin.sin_addr;
7013                         *addr = (struct sockaddr *)sin;
7014                         break;
7015                 }
7016 #endif
7017 #ifdef INET6
7018         case AF_INET6:
7019                 {
7020                         struct sockaddr_in6 *sin6;
7021
7022                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7023                         if (sin6 == NULL)
7024                                 return (ENOMEM);
7025                         sin6->sin6_family = AF_INET6;
7026                         sin6->sin6_len = sizeof(*sin6);
7027                         sin6->sin6_port = store.sin6.sin6_port;
7028                         sin6->sin6_addr = store.sin6.sin6_addr;
7029                         if ((error = sa6_recoverscope(sin6)) != 0) {
7030                                 SCTP_FREE_SONAME(sin6);
7031                                 return (error);
7032                         }
7033                         *addr = (struct sockaddr *)sin6;
7034                         break;
7035                 }
7036 #endif
7037         default:
7038                 /* TSNH */
7039                 break;
7040         }
7041         /* Wake any delayed sleep action */
7042         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7043                 SCTP_INP_WLOCK(inp);
7044                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7045                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7046                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7047                         SCTP_INP_WUNLOCK(inp);
7048                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7049                         if (sowriteable(inp->sctp_socket)) {
7050                                 sowwakeup_locked(inp->sctp_socket);
7051                         } else {
7052                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7053                         }
7054                         SCTP_INP_WLOCK(inp);
7055                 }
7056                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7057                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7058                         SCTP_INP_WUNLOCK(inp);
7059                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7060                         if (soreadable(inp->sctp_socket)) {
7061                                 sctp_defered_wakeup_cnt++;
7062                                 sorwakeup_locked(inp->sctp_socket);
7063                         } else {
7064                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7065                         }
7066                         SCTP_INP_WLOCK(inp);
7067                 }
7068                 SCTP_INP_WUNLOCK(inp);
7069         }
7070         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7071                 SCTP_TCB_LOCK(stcb);
7072                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
7073         }
7074         return (0);
7075 }
7076
7077 #ifdef INET
7078 int
7079 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7080 {
7081         struct sockaddr_in *sin;
7082         uint32_t vrf_id;
7083         struct sctp_inpcb *inp;
7084         struct sctp_ifa *sctp_ifa;
7085
7086         /*
7087          * Do the malloc first in case it blocks.
7088          */
7089         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7090         if (sin == NULL)
7091                 return (ENOMEM);
7092         sin->sin_family = AF_INET;
7093         sin->sin_len = sizeof(*sin);
7094         inp = (struct sctp_inpcb *)so->so_pcb;
7095         if (!inp) {
7096                 SCTP_FREE_SONAME(sin);
7097                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7098                 return (ECONNRESET);
7099         }
7100         SCTP_INP_RLOCK(inp);
7101         sin->sin_port = inp->sctp_lport;
7102         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7103                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7104                         struct sctp_tcb *stcb;
7105                         struct sockaddr_in *sin_a;
7106                         struct sctp_nets *net;
7107                         int fnd;
7108
7109                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7110                         if (stcb == NULL) {
7111                                 goto notConn;
7112                         }
7113                         fnd = 0;
7114                         sin_a = NULL;
7115                         SCTP_TCB_LOCK(stcb);
7116                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7117                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7118                                 if (sin_a == NULL)
7119                                         /* this will make coverity happy */
7120                                         continue;
7121
7122                                 if (sin_a->sin_family == AF_INET) {
7123                                         fnd = 1;
7124                                         break;
7125                                 }
7126                         }
7127                         if ((!fnd) || (sin_a == NULL)) {
7128                                 /* punt */
7129                                 SCTP_TCB_UNLOCK(stcb);
7130                                 goto notConn;
7131                         }
7132                         vrf_id = inp->def_vrf_id;
7133                         sctp_ifa = sctp_source_address_selection(inp,
7134                             stcb,
7135                             (sctp_route_t *) & net->ro,
7136                             net, 0, vrf_id);
7137                         if (sctp_ifa) {
7138                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7139                                 sctp_free_ifa(sctp_ifa);
7140                         }
7141                         SCTP_TCB_UNLOCK(stcb);
7142                 } else {
7143                         /* For the bound all case you get back 0 */
7144         notConn:
7145                         sin->sin_addr.s_addr = 0;
7146                 }
7147
7148         } else {
7149                 /* Take the first IPv4 address in the list */
7150                 struct sctp_laddr *laddr;
7151                 int fnd = 0;
7152
7153                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7154                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7155                                 struct sockaddr_in *sin_a;
7156
7157                                 sin_a = &laddr->ifa->address.sin;
7158                                 sin->sin_addr = sin_a->sin_addr;
7159                                 fnd = 1;
7160                                 break;
7161                         }
7162                 }
7163                 if (!fnd) {
7164                         SCTP_FREE_SONAME(sin);
7165                         SCTP_INP_RUNLOCK(inp);
7166                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7167                         return (ENOENT);
7168                 }
7169         }
7170         SCTP_INP_RUNLOCK(inp);
7171         (*addr) = (struct sockaddr *)sin;
7172         return (0);
7173 }
7174
7175 int
7176 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7177 {
7178         struct sockaddr_in *sin;
7179         int fnd;
7180         struct sockaddr_in *sin_a;
7181         struct sctp_inpcb *inp;
7182         struct sctp_tcb *stcb;
7183         struct sctp_nets *net;
7184
7185         /* Do the malloc first in case it blocks. */
7186         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7187         if (sin == NULL)
7188                 return (ENOMEM);
7189         sin->sin_family = AF_INET;
7190         sin->sin_len = sizeof(*sin);
7191
7192         inp = (struct sctp_inpcb *)so->so_pcb;
7193         if ((inp == NULL) ||
7194             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7195                 /* UDP type and listeners will drop out here */
7196                 SCTP_FREE_SONAME(sin);
7197                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7198                 return (ENOTCONN);
7199         }
7200         SCTP_INP_RLOCK(inp);
7201         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7202         if (stcb) {
7203                 SCTP_TCB_LOCK(stcb);
7204         }
7205         SCTP_INP_RUNLOCK(inp);
7206         if (stcb == NULL) {
7207                 SCTP_FREE_SONAME(sin);
7208                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7209                 return (ECONNRESET);
7210         }
7211         fnd = 0;
7212         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7213                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7214                 if (sin_a->sin_family == AF_INET) {
7215                         fnd = 1;
7216                         sin->sin_port = stcb->rport;
7217                         sin->sin_addr = sin_a->sin_addr;
7218                         break;
7219                 }
7220         }
7221         SCTP_TCB_UNLOCK(stcb);
7222         if (!fnd) {
7223                 /* No IPv4 address */
7224                 SCTP_FREE_SONAME(sin);
7225                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7226                 return (ENOENT);
7227         }
7228         (*addr) = (struct sockaddr *)sin;
7229         return (0);
7230 }
7231
7232 struct pr_usrreqs sctp_usrreqs = {
7233         .pru_abort = sctp_abort,
7234         .pru_accept = sctp_accept,
7235         .pru_attach = sctp_attach,
7236         .pru_bind = sctp_bind,
7237         .pru_connect = sctp_connect,
7238         .pru_control = in_control,
7239         .pru_close = sctp_close,
7240         .pru_detach = sctp_close,
7241         .pru_sopoll = sopoll_generic,
7242         .pru_flush = sctp_flush,
7243         .pru_disconnect = sctp_disconnect,
7244         .pru_listen = sctp_listen,
7245         .pru_peeraddr = sctp_peeraddr,
7246         .pru_send = sctp_sendm,
7247         .pru_shutdown = sctp_shutdown,
7248         .pru_sockaddr = sctp_ingetaddr,
7249         .pru_sosend = sctp_sosend,
7250         .pru_soreceive = sctp_soreceive
7251 };
7252
7253 #endif