sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                                 chk->sent = SCTP_DATAGRAM_RESEND;
 129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 130                                 chk->rec.data.doing_fast_retransmit = 0;
 131                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 132                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 133                                             chk->whoTo->flight_size,
 134                                             chk->book_size,
 135                                             (uintptr_t) chk->whoTo,
 136                                             chk->rec.data.TSN_seq);
 137                                 }
 138                                 /* Clear any time so NO RTT is being done */
 139                                 chk->do_rtt = 0;
 140                         }
 141                 }
 142         }
 143 }
 144
 145 #ifdef INET
 146 static void
 147 sctp_notify_mbuf(struct sctp_inpcb *inp,
 148     struct sctp_tcb *stcb,
 149     struct sctp_nets *net,
 150     struct ip *ip,
 151     struct sctphdr *sh)
 152 {
 153         struct icmp *icmph;
 154         int totsz, tmr_stopped = 0;
 155         uint16_t nxtsz;
 156
 157         /* protection */
 158         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 159             (ip == NULL) || (sh == NULL)) {
 160                 if (stcb != NULL) {
 161                         SCTP_TCB_UNLOCK(stcb);
 162                 }
 163                 return;
 164         }
 165         /* First job is to verify the vtag matches what I would send */
 166         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 167                 SCTP_TCB_UNLOCK(stcb);
 168                 return;
 169         }
 170         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 171             sizeof(struct ip)));
 172         if (icmph->icmp_type != ICMP_UNREACH) {
 173                 /* We only care about unreachable */
 174                 SCTP_TCB_UNLOCK(stcb);
 175                 return;
 176         }
 177         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 178                 /* not a unreachable message due to frag. */
 179                 SCTP_TCB_UNLOCK(stcb);
 180                 return;
 181         }
 182         totsz = ntohs(ip->ip_len);
 183
 184         nxtsz = ntohs(icmph->icmp_nextmtu);
 185         if (nxtsz == 0) {
 186                 /*
 187                  * old type router that does not tell us what the next size
 188                  * mtu is. Rats we will have to guess (in a educated fashion
 189                  * of course)
 190                  */
 191                 nxtsz = sctp_get_prev_mtu(totsz);
 192         }
 193         /* Stop any PMTU timer */
 194         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 195                 tmr_stopped = 1;
 196                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 197                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 198         }
 199         /* Adjust destination size limit */
 200         if (net->mtu > nxtsz) {
 201                 net->mtu = nxtsz;
 202                 if (net->port) {
 203                         net->mtu -= sizeof(struct udphdr);
 204                 }
 205         }
 206         /* now what about the ep? */
 207         if (stcb->asoc.smallest_mtu > nxtsz) {
 208                 sctp_pathmtu_adjustment(stcb, nxtsz);
 209         }
 210         if (tmr_stopped)
 211                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 212
 213         SCTP_TCB_UNLOCK(stcb);
 214 }
 215
 216 void
 217 sctp_notify(struct sctp_inpcb *inp,
 218     struct ip *ip,
 219     struct sctphdr *sh,
 220     struct sockaddr *to,
 221     struct sctp_tcb *stcb,
 222     struct sctp_nets *net)
 223 {
 224 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 225         struct socket *so;
 226
 227 #endif
 228         struct icmp *icmph;
 229
 230         /* protection */
 231         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 232             (sh == NULL) || (to == NULL)) {
 233                 if (stcb)
 234                         SCTP_TCB_UNLOCK(stcb);
 235                 return;
 236         }
 237         /* First job is to verify the vtag matches what I would send */
 238         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 239                 SCTP_TCB_UNLOCK(stcb);
 240                 return;
 241         }
 242         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 243             sizeof(struct ip)));
 244         if (icmph->icmp_type != ICMP_UNREACH) {
 245                 /* We only care about unreachable */
 246                 SCTP_TCB_UNLOCK(stcb);
 247                 return;
 248         }
 249         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 250             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 251             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 252             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 253             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 254             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 255             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 256             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 257
 258                 /*
 259                  * Hmm reachablity problems we must examine closely. If its
 260                  * not reachable, we may have lost a network. Or if there is
 261                  * NO protocol at the other end named SCTP. well we consider
 262                  * it a OOTB abort.
 263                  */
 264                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 265                         /* Ok that destination is NOT reachable */
 266                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 267                         net->dest_state &= ~SCTP_ADDR_PF;
 268                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 269                             stcb, 0,
 270                             (void *)net, SCTP_SO_NOT_LOCKED);
 271                 }
 272                 SCTP_TCB_UNLOCK(stcb);
 273         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 274             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 275                 /*
 276                  * Here the peer is either playing tricks on us, including
 277                  * an address that belongs to someone who does not support
 278                  * SCTP OR was a userland implementation that shutdown and
 279                  * now is dead. In either case treat it like a OOTB abort
 280                  * with no TCB
 281                  */
 282                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 283 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 284                 so = SCTP_INP_SO(inp);
 285                 atomic_add_int(&stcb->asoc.refcnt, 1);
 286                 SCTP_TCB_UNLOCK(stcb);
 287                 SCTP_SOCKET_LOCK(so, 1);
 288                 SCTP_TCB_LOCK(stcb);
 289                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 290 #endif
 291                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 292 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 293                 SCTP_SOCKET_UNLOCK(so, 1);
 294                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 295 #endif
 296                 /* no need to unlock here, since the TCB is gone */
 297         } else {
 298                 SCTP_TCB_UNLOCK(stcb);
 299         }
 300 }
 301
 302 #endif
 303
 304 #ifdef INET
 305 void
 306 sctp_ctlinput(cmd, sa, vip)
 307         int cmd;
 308         struct sockaddr *sa;
 309         void *vip;
 310 {
 311         struct ip *ip = vip;
 312         struct sctphdr *sh;
 313         uint32_t vrf_id;
 314
 315         /* FIX, for non-bsd is this right? */
 316         vrf_id = SCTP_DEFAULT_VRFID;
 317         if (sa->sa_family != AF_INET ||
 318             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 319                 return;
 320         }
 321         if (PRC_IS_REDIRECT(cmd)) {
 322                 ip = 0;
 323         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 324                 return;
 325         }
 326         if (ip) {
 327                 struct sctp_inpcb *inp = NULL;
 328                 struct sctp_tcb *stcb = NULL;
 329                 struct sctp_nets *net = NULL;
 330                 struct sockaddr_in to, from;
 331
 332                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 333                 bzero(&to, sizeof(to));
 334                 bzero(&from, sizeof(from));
 335                 from.sin_family = to.sin_family = AF_INET;
 336                 from.sin_len = to.sin_len = sizeof(to);
 337                 from.sin_port = sh->src_port;
 338                 from.sin_addr = ip->ip_src;
 339                 to.sin_port = sh->dest_port;
 340                 to.sin_addr = ip->ip_dst;
 341
 342                 /*
 343                  * 'to' holds the dest of the packet that failed to be sent.
 344                  * 'from' holds our local endpoint address. Thus we reverse
 345                  * the to and the from in the lookup.
 346                  */
 347                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 348                     (struct sockaddr *)&from,
 349                     &inp, &net, 1, vrf_id);
 350                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 351                         if (cmd != PRC_MSGSIZE) {
 352                                 sctp_notify(inp, ip, sh,
 353                                     (struct sockaddr *)&to, stcb,
 354                                     net);
 355                         } else {
 356                                 /* handle possible ICMP size messages */
 357                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 358                         }
 359                 } else {
 360                         if ((stcb == NULL) && (inp != NULL)) {
 361                                 /* reduce ref-count */
 362                                 SCTP_INP_WLOCK(inp);
 363                                 SCTP_INP_DECR_REF(inp);
 364                                 SCTP_INP_WUNLOCK(inp);
 365                         }
 366                         if (stcb) {
 367                                 SCTP_TCB_UNLOCK(stcb);
 368                         }
 369                 }
 370         }
 371         return;
 372 }
 373
 374 #endif
 375
 376 static int
 377 sctp_getcred(SYSCTL_HANDLER_ARGS)
 378 {
 379         struct xucred xuc;
 380         struct sockaddr_in addrs[2];
 381         struct sctp_inpcb *inp;
 382         struct sctp_nets *net;
 383         struct sctp_tcb *stcb;
 384         int error;
 385         uint32_t vrf_id;
 386
 387         /* FIX, for non-bsd is this right? */
 388         vrf_id = SCTP_DEFAULT_VRFID;
 389
 390         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 391
 392         if (error)
 393                 return (error);
 394
 395         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 396         if (error)
 397                 return (error);
 398
 399         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 400             sintosa(&addrs[0]),
 401             &inp, &net, 1, vrf_id);
 402         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 403                 if ((inp != NULL) && (stcb == NULL)) {
 404                         /* reduce ref-count */
 405                         SCTP_INP_WLOCK(inp);
 406                         SCTP_INP_DECR_REF(inp);
 407                         goto cred_can_cont;
 408                 }
 409                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 410                 error = ENOENT;
 411                 goto out;
 412         }
 413         SCTP_TCB_UNLOCK(stcb);
 414         /*
 415          * We use the write lock here, only since in the error leg we need
 416          * it. If we used RLOCK, then we would have to
 417          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 418          * Better to use higher wlock.
 419          */
 420         SCTP_INP_WLOCK(inp);
 421 cred_can_cont:
 422         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 423         if (error) {
 424                 SCTP_INP_WUNLOCK(inp);
 425                 goto out;
 426         }
 427         cru2x(inp->sctp_socket->so_cred, &xuc);
 428         SCTP_INP_WUNLOCK(inp);
 429         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 430 out:
 431         return (error);
 432 }
 433
 434 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 435     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 436
 437
 438 #ifdef INET
 439 static void
 440 sctp_abort(struct socket *so)
 441 {
 442         struct sctp_inpcb *inp;
 443         uint32_t flags;
 444
 445         inp = (struct sctp_inpcb *)so->so_pcb;
 446         if (inp == NULL) {
 447                 return;
 448         }
 449 sctp_must_try_again:
 450         flags = inp->sctp_flags;
 451 #ifdef SCTP_LOG_CLOSING
 452         sctp_log_closing(inp, NULL, 17);
 453 #endif
 454         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 455             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 456 #ifdef SCTP_LOG_CLOSING
 457                 sctp_log_closing(inp, NULL, 16);
 458 #endif
 459                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 460                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 461                 SOCK_LOCK(so);
 462                 SCTP_SB_CLEAR(so->so_snd);
 463                 /*
 464                  * same for the rcv ones, they are only here for the
 465                  * accounting/select.
 466                  */
 467                 SCTP_SB_CLEAR(so->so_rcv);
 468
 469                 /* Now null out the reference, we are completely detached. */
 470                 so->so_pcb = NULL;
 471                 SOCK_UNLOCK(so);
 472         } else {
 473                 flags = inp->sctp_flags;
 474                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 475                         goto sctp_must_try_again;
 476                 }
 477         }
 478         return;
 479 }
 480
 481 static int
 482 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 483 {
 484         struct sctp_inpcb *inp;
 485         struct inpcb *ip_inp;
 486         int error;
 487         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 488
 489 #ifdef IPSEC
 490         uint32_t flags;
 491
 492 #endif
 493
 494         inp = (struct sctp_inpcb *)so->so_pcb;
 495         if (inp != 0) {
 496                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 497                 return (EINVAL);
 498         }
 499         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 500                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 501                 if (error) {
 502                         return (error);
 503                 }
 504         }
 505         error = sctp_inpcb_alloc(so, vrf_id);
 506         if (error) {
 507                 return (error);
 508         }
 509         inp = (struct sctp_inpcb *)so->so_pcb;
 510         SCTP_INP_WLOCK(inp);
 511         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 512         ip_inp = &inp->ip_inp.inp;
 513         ip_inp->inp_vflag |= INP_IPV4;
 514         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 515 #ifdef IPSEC
 516         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 517 #ifdef SCTP_LOG_CLOSING
 518         sctp_log_closing(inp, NULL, 17);
 519 #endif
 520         if (error != 0) {
 521 try_again:
 522                 flags = inp->sctp_flags;
 523                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 524                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 525 #ifdef SCTP_LOG_CLOSING
 526                         sctp_log_closing(inp, NULL, 15);
 527 #endif
 528                         SCTP_INP_WUNLOCK(inp);
 529                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 530                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 531                 } else {
 532                         flags = inp->sctp_flags;
 533                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 534                                 goto try_again;
 535                         } else {
 536                                 SCTP_INP_WUNLOCK(inp);
 537                         }
 538                 }
 539                 return (error);
 540         }
 541 #endif                          /* IPSEC */
 542         SCTP_INP_WUNLOCK(inp);
 543         return (0);
 544 }
 545
 546 static int
 547 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 548 {
 549         struct sctp_inpcb *inp;
 550
 551         inp = (struct sctp_inpcb *)so->so_pcb;
 552         if (inp == NULL) {
 553                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 554                 return (EINVAL);
 555         }
 556         if (addr != NULL) {
 557                 if ((addr->sa_family != AF_INET) ||
 558                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 559                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 560                         return (EINVAL);
 561                 }
 562         }
 563         return (sctp_inpcb_bind(so, addr, NULL, p));
 564 }
 565
 566 #endif
 567 void
 568 sctp_close(struct socket *so)
 569 {
 570         struct sctp_inpcb *inp;
 571         uint32_t flags;
 572
 573         inp = (struct sctp_inpcb *)so->so_pcb;
 574         if (inp == NULL)
 575                 return;
 576
 577         /*
 578          * Inform all the lower layer assoc that we are done.
 579          */
 580 sctp_must_try_again:
 581         flags = inp->sctp_flags;
 582 #ifdef SCTP_LOG_CLOSING
 583         sctp_log_closing(inp, NULL, 17);
 584 #endif
 585         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 586             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 587                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 588                     (so->so_rcv.sb_cc > 0)) {
 589 #ifdef SCTP_LOG_CLOSING
 590                         sctp_log_closing(inp, NULL, 13);
 591 #endif
 592                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 593                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 594                 } else {
 595 #ifdef SCTP_LOG_CLOSING
 596                         sctp_log_closing(inp, NULL, 14);
 597 #endif
 598                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 599                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 600                 }
 601                 /*
 602                  * The socket is now detached, no matter what the state of
 603                  * the SCTP association.
 604                  */
 605                 SOCK_LOCK(so);
 606                 SCTP_SB_CLEAR(so->so_snd);
 607                 /*
 608                  * same for the rcv ones, they are only here for the
 609                  * accounting/select.
 610                  */
 611                 SCTP_SB_CLEAR(so->so_rcv);
 612
 613                 /* Now null out the reference, we are completely detached. */
 614                 so->so_pcb = NULL;
 615                 SOCK_UNLOCK(so);
 616         } else {
 617                 flags = inp->sctp_flags;
 618                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 619                         goto sctp_must_try_again;
 620                 }
 621         }
 622         return;
 623 }
 624
 625
 626 int
 627 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 628     struct mbuf *control, struct thread *p);
 629
 630
 631 int
 632 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 633     struct mbuf *control, struct thread *p)
 634 {
 635         struct sctp_inpcb *inp;
 636         int error;
 637
 638         inp = (struct sctp_inpcb *)so->so_pcb;
 639         if (inp == NULL) {
 640                 if (control) {
 641                         sctp_m_freem(control);
 642                         control = NULL;
 643                 }
 644                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 645                 sctp_m_freem(m);
 646                 return (EINVAL);
 647         }
 648         /* Got to have an to address if we are NOT a connected socket */
 649         if ((addr == NULL) &&
 650             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 651             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 652                 goto connected_type;
 653         } else if (addr == NULL) {
 654                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 655                 error = EDESTADDRREQ;
 656                 sctp_m_freem(m);
 657                 if (control) {
 658                         sctp_m_freem(control);
 659                         control = NULL;
 660                 }
 661                 return (error);
 662         }
 663 #ifdef INET6
 664         if (addr->sa_family != AF_INET) {
 665                 /* must be a v4 address! */
 666                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 667                 sctp_m_freem(m);
 668                 if (control) {
 669                         sctp_m_freem(control);
 670                         control = NULL;
 671                 }
 672                 error = EDESTADDRREQ;
 673                 return (error);
 674         }
 675 #endif                          /* INET6 */
 676 connected_type:
 677         /* now what about control */
 678         if (control) {
 679                 if (inp->control) {
 680                         SCTP_PRINTF("huh? control set?\n");
 681                         sctp_m_freem(inp->control);
 682                         inp->control = NULL;
 683                 }
 684                 inp->control = control;
 685         }
 686         /* Place the data */
 687         if (inp->pkt) {
 688                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 689                 inp->pkt_last = m;
 690         } else {
 691                 inp->pkt_last = inp->pkt = m;
 692         }
 693         if (
 694         /* FreeBSD uses a flag passed */
 695             ((flags & PRUS_MORETOCOME) == 0)
 696             ) {
 697                 /*
 698                  * note with the current version this code will only be used
 699                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 700                  * re-defining sosend to use the sctp_sosend. One can
 701                  * optionally switch back to this code (by changing back the
 702                  * definitions) but this is not advisable. This code is used
 703                  * by FreeBSD when sending a file with sendfile() though.
 704                  */
 705                 int ret;
 706
 707                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 708                 inp->pkt = NULL;
 709                 inp->control = NULL;
 710                 return (ret);
 711         } else {
 712                 return (0);
 713         }
 714 }
 715
 716 int
 717 sctp_disconnect(struct socket *so)
 718 {
 719         struct sctp_inpcb *inp;
 720
 721         inp = (struct sctp_inpcb *)so->so_pcb;
 722         if (inp == NULL) {
 723                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 724                 return (ENOTCONN);
 725         }
 726         SCTP_INP_RLOCK(inp);
 727         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 728             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 729                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 730                         /* No connection */
 731                         SCTP_INP_RUNLOCK(inp);
 732                         return (0);
 733                 } else {
 734                         struct sctp_association *asoc;
 735                         struct sctp_tcb *stcb;
 736
 737                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 738                         if (stcb == NULL) {
 739                                 SCTP_INP_RUNLOCK(inp);
 740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 741                                 return (EINVAL);
 742                         }
 743                         SCTP_TCB_LOCK(stcb);
 744                         asoc = &stcb->asoc;
 745                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 746                                 /* We are about to be freed, out of here */
 747                                 SCTP_TCB_UNLOCK(stcb);
 748                                 SCTP_INP_RUNLOCK(inp);
 749                                 return (0);
 750                         }
 751                         if (((so->so_options & SO_LINGER) &&
 752                             (so->so_linger == 0)) ||
 753                             (so->so_rcv.sb_cc > 0)) {
 754                                 if (SCTP_GET_STATE(asoc) !=
 755                                     SCTP_STATE_COOKIE_WAIT) {
 756                                         /* Left with Data unread */
 757                                         struct mbuf *err;
 758
 759                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 760                                         if (err) {
 761                                                 /*
 762                                                  * Fill in the user
 763                                                  * initiated abort
 764                                                  */
 765                                                 struct sctp_paramhdr *ph;
 766
 767                                                 ph = mtod(err, struct sctp_paramhdr *);
 768                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 769                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 770                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 771                                         }
 772                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 773                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 774                                 }
 775                                 SCTP_INP_RUNLOCK(inp);
 776                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 777                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 778                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 779                                 }
 780                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 781                                 /* No unlock tcb assoc is gone */
 782                                 return (0);
 783                         }
 784                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 785                             TAILQ_EMPTY(&asoc->sent_queue) &&
 786                             (asoc->stream_queue_cnt == 0)) {
 787                                 /* there is nothing queued to send, so done */
 788                                 if (asoc->locked_on_sending) {
 789                                         goto abort_anyway;
 790                                 }
 791                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 792                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 793                                         /* only send SHUTDOWN 1st time thru */
 794                                         struct sctp_nets *netp;
 795
 796                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 797                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 798                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 799                                         }
 800                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 801                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 802                                         sctp_stop_timers_for_shutdown(stcb);
 803                                         if (stcb->asoc.alternate) {
 804                                                 netp = stcb->asoc.alternate;
 805                                         } else {
 806                                                 netp = stcb->asoc.primary_destination;
 807                                         }
 808                                         sctp_send_shutdown(stcb, netp);
 809                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 810                                             stcb->sctp_ep, stcb, netp);
 811                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 812                                             stcb->sctp_ep, stcb, netp);
 813                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 814                                 }
 815                         } else {
 816                                 /*
 817                                  * we still got (or just got) data to send,
 818                                  * so set SHUTDOWN_PENDING
 819                                  */
 820                                 /*
 821                                  * XXX sockets draft says that SCTP_EOF
 822                                  * should be sent with no data. currently,
 823                                  * we will allow user data to be sent first
 824                                  * and move to SHUTDOWN-PENDING
 825                                  */
 826                                 struct sctp_nets *netp;
 827
 828                                 if (stcb->asoc.alternate) {
 829                                         netp = stcb->asoc.alternate;
 830                                 } else {
 831                                         netp = stcb->asoc.primary_destination;
 832                                 }
 833
 834                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 835                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 836                                     netp);
 837                                 if (asoc->locked_on_sending) {
 838                                         /* Locked to send out the data */
 839                                         struct sctp_stream_queue_pending *sp;
 840
 841                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 842                                         if (sp == NULL) {
 843                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 844                                                     asoc->locked_on_sending->stream_no);
 845                                         } else {
 846                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 847                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 848                                         }
 849                                 }
 850                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 851                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 852                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 853                                         struct mbuf *op_err;
 854
 855                         abort_anyway:
 856                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 857                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 858                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 859                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 860                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 861                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 862                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 863                                         }
 864                                         SCTP_INP_RUNLOCK(inp);
 865                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 866                                         return (0);
 867                                 } else {
 868                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 869                                 }
 870                         }
 871                         soisdisconnecting(so);
 872                         SCTP_TCB_UNLOCK(stcb);
 873                         SCTP_INP_RUNLOCK(inp);
 874                         return (0);
 875                 }
 876                 /* not reached */
 877         } else {
 878                 /* UDP model does not support this */
 879                 SCTP_INP_RUNLOCK(inp);
 880                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 881                 return (EOPNOTSUPP);
 882         }
 883 }
 884
 885 int
 886 sctp_flush(struct socket *so, int how)
 887 {
 888         /*
 889          * We will just clear out the values and let subsequent close clear
 890          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 891          * they will not be able to read the data, the socket will block
 892          * that from happening.
 893          */
 894         struct sctp_inpcb *inp;
 895
 896         inp = (struct sctp_inpcb *)so->so_pcb;
 897         if (inp == NULL) {
 898                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 899                 return (EINVAL);
 900         }
 901         SCTP_INP_RLOCK(inp);
 902         /* For the 1 to many model this does nothing */
 903         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 904                 SCTP_INP_RUNLOCK(inp);
 905                 return (0);
 906         }
 907         SCTP_INP_RUNLOCK(inp);
 908         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 909                 /*
 910                  * First make sure the sb will be happy, we don't use these
 911                  * except maybe the count
 912                  */
 913                 SCTP_INP_WLOCK(inp);
 914                 SCTP_INP_READ_LOCK(inp);
 915                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 916                 SCTP_INP_READ_UNLOCK(inp);
 917                 SCTP_INP_WUNLOCK(inp);
 918                 so->so_rcv.sb_cc = 0;
 919                 so->so_rcv.sb_mbcnt = 0;
 920                 so->so_rcv.sb_mb = NULL;
 921         }
 922         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 923                 /*
 924                  * First make sure the sb will be happy, we don't use these
 925                  * except maybe the count
 926                  */
 927                 so->so_snd.sb_cc = 0;
 928                 so->so_snd.sb_mbcnt = 0;
 929                 so->so_snd.sb_mb = NULL;
 930
 931         }
 932         return (0);
 933 }
 934
 935 int
 936 sctp_shutdown(struct socket *so)
 937 {
 938         struct sctp_inpcb *inp;
 939
 940         inp = (struct sctp_inpcb *)so->so_pcb;
 941         if (inp == NULL) {
 942                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 943                 return (EINVAL);
 944         }
 945         SCTP_INP_RLOCK(inp);
 946         /* For UDP model this is a invalid call */
 947         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 948             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 949                 /* Restore the flags that the soshutdown took away. */
 950                 SOCKBUF_LOCK(&so->so_rcv);
 951                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 952                 SOCKBUF_UNLOCK(&so->so_rcv);
 953                 /* This proc will wakeup for read and do nothing (I hope) */
 954                 SCTP_INP_RUNLOCK(inp);
 955                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 956                 return (EOPNOTSUPP);
 957         }
 958         /*
 959          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 960          * or SHUT_RDWR. This means we put the shutdown flag against it.
 961          */
 962         {
 963                 struct sctp_tcb *stcb;
 964                 struct sctp_association *asoc;
 965
 966                 if ((so->so_state &
 967                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 968                         SCTP_INP_RUNLOCK(inp);
 969                         return (ENOTCONN);
 970                 }
 971                 socantsendmore(so);
 972
 973                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 974                 if (stcb == NULL) {
 975                         /*
 976                          * Ok we hit the case that the shutdown call was
 977                          * made after an abort or something. Nothing to do
 978                          * now.
 979                          */
 980                         SCTP_INP_RUNLOCK(inp);
 981                         return (0);
 982                 }
 983                 SCTP_TCB_LOCK(stcb);
 984                 asoc = &stcb->asoc;
 985                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 986                     TAILQ_EMPTY(&asoc->sent_queue) &&
 987                     (asoc->stream_queue_cnt == 0)) {
 988                         if (asoc->locked_on_sending) {
 989                                 goto abort_anyway;
 990                         }
 991                         /* there is nothing queued to send, so I'm done... */
 992                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 993                                 /* only send SHUTDOWN the first time through */
 994                                 struct sctp_nets *netp;
 995
 996                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 997                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 998                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 999                                 }
1000                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1001                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1002                                 sctp_stop_timers_for_shutdown(stcb);
1003                                 if (stcb->asoc.alternate) {
1004                                         netp = stcb->asoc.alternate;
1005                                 } else {
1006                                         netp = stcb->asoc.primary_destination;
1007                                 }
1008                                 sctp_send_shutdown(stcb, netp);
1009                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1010                                     stcb->sctp_ep, stcb, netp);
1011                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1012                                     stcb->sctp_ep, stcb, netp);
1013                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1014                         }
1015                 } else {
1016                         /*
1017                          * we still got (or just got) data to send, so set
1018                          * SHUTDOWN_PENDING
1019                          */
1020                         struct sctp_nets *netp;
1021
1022                         if (stcb->asoc.alternate) {
1023                                 netp = stcb->asoc.alternate;
1024                         } else {
1025                                 netp = stcb->asoc.primary_destination;
1026                         }
1027
1028                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1029                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1030                             netp);
1031
1032                         if (asoc->locked_on_sending) {
1033                                 /* Locked to send out the data */
1034                                 struct sctp_stream_queue_pending *sp;
1035
1036                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1037                                 if (sp == NULL) {
1038                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1039                                             asoc->locked_on_sending->stream_no);
1040                                 } else {
1041                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1042                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1043                                         }
1044                                 }
1045                         }
1046                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1047                             TAILQ_EMPTY(&asoc->sent_queue) &&
1048                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1049                                 struct mbuf *op_err;
1050
1051                 abort_anyway:
1052                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1053                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1054                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1055                                     op_err, SCTP_SO_LOCKED);
1056                                 goto skip_unlock;
1057                         } else {
1058                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1059                         }
1060                 }
1061                 SCTP_TCB_UNLOCK(stcb);
1062         }
1063 skip_unlock:
1064         SCTP_INP_RUNLOCK(inp);
1065         return (0);
1066 }
1067
1068 /*
1069  * copies a "user" presentable address and removes embedded scope, etc.
1070  * returns 0 on success, 1 on error
1071  */
1072 static uint32_t
1073 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1074 {
1075 #ifdef INET6
1076         struct sockaddr_in6 lsa6;
1077
1078         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1079             &lsa6);
1080 #endif
1081         memcpy(ss, sa, sa->sa_len);
1082         return (0);
1083 }
1084
1085
1086
1087 /*
1088  * NOTE: assumes addr lock is held
1089  */
1090 static size_t
1091 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1092     struct sctp_tcb *stcb,
1093     size_t limit,
1094     struct sockaddr_storage *sas,
1095     uint32_t vrf_id)
1096 {
1097         struct sctp_ifn *sctp_ifn;
1098         struct sctp_ifa *sctp_ifa;
1099         size_t actual;
1100         int loopback_scope;
1101
1102 #if defined(INET)
1103         int ipv4_local_scope, ipv4_addr_legal;
1104
1105 #endif
1106 #if defined(INET6)
1107         int local_scope, site_scope, ipv6_addr_legal;
1108
1109 #endif
1110         struct sctp_vrf *vrf;
1111
1112         actual = 0;
1113         if (limit <= 0)
1114                 return (actual);
1115
1116         if (stcb) {
1117                 /* Turn on all the appropriate scope */
1118                 loopback_scope = stcb->asoc.scope.loopback_scope;
1119 #if defined(INET)
1120                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1121                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1122 #endif
1123 #if defined(INET6)
1124                 local_scope = stcb->asoc.scope.local_scope;
1125                 site_scope = stcb->asoc.scope.site_scope;
1126                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1127 #endif
1128         } else {
1129                 /* Use generic values for endpoints. */
1130                 loopback_scope = 1;
1131 #if defined(INET)
1132                 ipv4_local_scope = 1;
1133 #endif
1134 #if defined(INET6)
1135                 local_scope = 1;
1136                 site_scope = 1;
1137 #endif
1138                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1139 #if defined(INET6)
1140                         ipv6_addr_legal = 1;
1141 #endif
1142 #if defined(INET)
1143                         if (SCTP_IPV6_V6ONLY(inp)) {
1144                                 ipv4_addr_legal = 0;
1145                         } else {
1146                                 ipv4_addr_legal = 1;
1147                         }
1148 #endif
1149                 } else {
1150 #if defined(INET6)
1151                         ipv6_addr_legal = 0;
1152 #endif
1153 #if defined(INET)
1154                         ipv4_addr_legal = 1;
1155 #endif
1156                 }
1157         }
1158         vrf = sctp_find_vrf(vrf_id);
1159         if (vrf == NULL) {
1160                 return (0);
1161         }
1162         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1163                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1164                         if ((loopback_scope == 0) &&
1165                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1166                                 /* Skip loopback if loopback_scope not set */
1167                                 continue;
1168                         }
1169                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1170                                 if (stcb) {
1171                                         /*
1172                                          * For the BOUND-ALL case, the list
1173                                          * associated with a TCB is Always
1174                                          * considered a reverse list.. i.e.
1175                                          * it lists addresses that are NOT
1176                                          * part of the association. If this
1177                                          * is one of those we must skip it.
1178                                          */
1179                                         if (sctp_is_addr_restricted(stcb,
1180                                             sctp_ifa)) {
1181                                                 continue;
1182                                         }
1183                                 }
1184                                 switch (sctp_ifa->address.sa.sa_family) {
1185 #ifdef INET
1186                                 case AF_INET:
1187                                         if (ipv4_addr_legal) {
1188                                                 struct sockaddr_in *sin;
1189
1190                                                 sin = &sctp_ifa->address.sin;
1191                                                 if (sin->sin_addr.s_addr == 0) {
1192                                                         /*
1193                                                          * we skip
1194                                                          * unspecifed
1195                                                          * addresses
1196                                                          */
1197                                                         continue;
1198                                                 }
1199                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1200                                                     &sin->sin_addr) != 0) {
1201                                                         continue;
1202                                                 }
1203                                                 if ((ipv4_local_scope == 0) &&
1204                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1205                                                         continue;
1206                                                 }
1207 #ifdef INET6
1208                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1209                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1210                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1211                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1212                                                         actual += sizeof(struct sockaddr_in6);
1213                                                 } else {
1214 #endif
1215                                                         memcpy(sas, sin, sizeof(*sin));
1216                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1217                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1218                                                         actual += sizeof(*sin);
1219 #ifdef INET6
1220                                                 }
1221 #endif
1222                                                 if (actual >= limit) {
1223                                                         return (actual);
1224                                                 }
1225                                         } else {
1226                                                 continue;
1227                                         }
1228                                         break;
1229 #endif
1230 #ifdef INET6
1231                                 case AF_INET6:
1232                                         if (ipv6_addr_legal) {
1233                                                 struct sockaddr_in6 *sin6;
1234
1235                                                 sin6 = &sctp_ifa->address.sin6;
1236                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1237                                                         /*
1238                                                          * we skip
1239                                                          * unspecifed
1240                                                          * addresses
1241                                                          */
1242                                                         continue;
1243                                                 }
1244                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1245                                                     &sin6->sin6_addr) != 0) {
1246                                                         continue;
1247                                                 }
1248                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1249                                                         if (local_scope == 0)
1250                                                                 continue;
1251                                                         if (sin6->sin6_scope_id == 0) {
1252                                                                 if (sa6_recoverscope(sin6) != 0)
1253                                                                         /*
1254                                                                          *
1255                                                                          * bad
1256                                                                          *
1257                                                                          * li
1258                                                                          * nk
1259                                                                          *
1260                                                                          * loc
1261                                                                          * al
1262                                                                          *
1263                                                                          * add
1264                                                                          * re
1265                                                                          * ss
1266                                                                          * */
1267                                                                         continue;
1268                                                         }
1269                                                 }
1270                                                 if ((site_scope == 0) &&
1271                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1272                                                         continue;
1273                                                 }
1274                                                 memcpy(sas, sin6, sizeof(*sin6));
1275                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1276                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1277                                                 actual += sizeof(*sin6);
1278                                                 if (actual >= limit) {
1279                                                         return (actual);
1280                                                 }
1281                                         } else {
1282                                                 continue;
1283                                         }
1284                                         break;
1285 #endif
1286                                 default:
1287                                         /* TSNH */
1288                                         break;
1289                                 }
1290                         }
1291                 }
1292         } else {
1293                 struct sctp_laddr *laddr;
1294
1295                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1296                         if (stcb) {
1297                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1298                                         continue;
1299                                 }
1300                         }
1301                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1302                                 continue;
1303                         switch (laddr->ifa->address.sa.sa_family) {
1304 #ifdef INET
1305                         case AF_INET:
1306                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1307                                 break;
1308 #endif
1309 #ifdef INET6
1310                         case AF_INET6:
1311                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1312                                 break;
1313 #endif
1314                         default:
1315                                 /* TSNH */
1316                                 break;
1317                         }
1318                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1319                             laddr->ifa->address.sa.sa_len);
1320                         actual += laddr->ifa->address.sa.sa_len;
1321                         if (actual >= limit) {
1322                                 return (actual);
1323                         }
1324                 }
1325         }
1326         return (actual);
1327 }
1328
1329 static size_t
1330 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1331     struct sctp_tcb *stcb,
1332     size_t limit,
1333     struct sockaddr_storage *sas)
1334 {
1335         size_t size = 0;
1336
1337         SCTP_IPI_ADDR_RLOCK();
1338         /* fill up addresses for the endpoint's default vrf */
1339         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1340             inp->def_vrf_id);
1341         SCTP_IPI_ADDR_RUNLOCK();
1342         return (size);
1343 }
1344
1345 /*
1346  * NOTE: assumes addr lock is held
1347  */
1348 static int
1349 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1350 {
1351         int cnt = 0;
1352         struct sctp_vrf *vrf = NULL;
1353
1354         /*
1355          * In both sub-set bound an bound_all cases we return the MAXIMUM
1356          * number of addresses that you COULD get. In reality the sub-set
1357          * bound may have an exclusion list for a given TCB OR in the
1358          * bound-all case a TCB may NOT include the loopback or other
1359          * addresses as well.
1360          */
1361         vrf = sctp_find_vrf(vrf_id);
1362         if (vrf == NULL) {
1363                 return (0);
1364         }
1365         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1366                 struct sctp_ifn *sctp_ifn;
1367                 struct sctp_ifa *sctp_ifa;
1368
1369                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1370                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1371                                 /* Count them if they are the right type */
1372                                 switch (sctp_ifa->address.sa.sa_family) {
1373 #ifdef INET
1374                                 case AF_INET:
1375 #ifdef INET6
1376                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1377                                                 cnt += sizeof(struct sockaddr_in6);
1378                                         else
1379                                                 cnt += sizeof(struct sockaddr_in);
1380 #else
1381                                         cnt += sizeof(struct sockaddr_in);
1382 #endif
1383                                         break;
1384 #endif
1385 #ifdef INET6
1386                                 case AF_INET6:
1387                                         cnt += sizeof(struct sockaddr_in6);
1388                                         break;
1389 #endif
1390                                 default:
1391                                         break;
1392                                 }
1393                         }
1394                 }
1395         } else {
1396                 struct sctp_laddr *laddr;
1397
1398                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1399                         switch (laddr->ifa->address.sa.sa_family) {
1400 #ifdef INET
1401                         case AF_INET:
1402 #ifdef INET6
1403                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1404                                         cnt += sizeof(struct sockaddr_in6);
1405                                 else
1406                                         cnt += sizeof(struct sockaddr_in);
1407 #else
1408                                 cnt += sizeof(struct sockaddr_in);
1409 #endif
1410                                 break;
1411 #endif
1412 #ifdef INET6
1413                         case AF_INET6:
1414                                 cnt += sizeof(struct sockaddr_in6);
1415                                 break;
1416 #endif
1417                         default:
1418                                 break;
1419                         }
1420                 }
1421         }
1422         return (cnt);
1423 }
1424
1425 static int
1426 sctp_count_max_addresses(struct sctp_inpcb *inp)
1427 {
1428         int cnt = 0;
1429
1430         SCTP_IPI_ADDR_RLOCK();
1431         /* count addresses for the endpoint's default VRF */
1432         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1433         SCTP_IPI_ADDR_RUNLOCK();
1434         return (cnt);
1435 }
1436
1437 static int
1438 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1439     size_t optsize, void *p, int delay)
1440 {
1441         int error = 0;
1442         int creat_lock_on = 0;
1443         struct sctp_tcb *stcb = NULL;
1444         struct sockaddr *sa;
1445         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1446         uint32_t vrf_id;
1447         int bad_addresses = 0;
1448         sctp_assoc_t *a_id;
1449
1450         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1451
1452         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1453             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1454                 /* We are already connected AND the TCP model */
1455                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1456                 return (EADDRINUSE);
1457         }
1458         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1459             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1460                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1461                 return (EINVAL);
1462         }
1463         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1464                 SCTP_INP_RLOCK(inp);
1465                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1466                 SCTP_INP_RUNLOCK(inp);
1467         }
1468         if (stcb) {
1469                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1470                 return (EALREADY);
1471         }
1472         SCTP_INP_INCR_REF(inp);
1473         SCTP_ASOC_CREATE_LOCK(inp);
1474         creat_lock_on = 1;
1475         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1476             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1477                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1478                 error = EFAULT;
1479                 goto out_now;
1480         }
1481         totaddrp = (int *)optval;
1482         totaddr = *totaddrp;
1483         sa = (struct sockaddr *)(totaddrp + 1);
1484         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1485         if ((stcb != NULL) || bad_addresses) {
1486                 /* Already have or am bring up an association */
1487                 SCTP_ASOC_CREATE_UNLOCK(inp);
1488                 creat_lock_on = 0;
1489                 if (stcb)
1490                         SCTP_TCB_UNLOCK(stcb);
1491                 if (bad_addresses == 0) {
1492                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1493                         error = EALREADY;
1494                 }
1495                 goto out_now;
1496         }
1497 #ifdef INET6
1498         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1499             (num_v6 > 0)) {
1500                 error = EINVAL;
1501                 goto out_now;
1502         }
1503         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1504             (num_v4 > 0)) {
1505                 struct in6pcb *inp6;
1506
1507                 inp6 = (struct in6pcb *)inp;
1508                 if (SCTP_IPV6_V6ONLY(inp6)) {
1509                         /*
1510                          * if IPV6_V6ONLY flag, ignore connections destined
1511                          * to a v4 addr or v4-mapped addr
1512                          */
1513                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1514                         error = EINVAL;
1515                         goto out_now;
1516                 }
1517         }
1518 #endif                          /* INET6 */
1519         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1520             SCTP_PCB_FLAGS_UNBOUND) {
1521                 /* Bind a ephemeral port */
1522                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1523                 if (error) {
1524                         goto out_now;
1525                 }
1526         }
1527         /* FIX ME: do we want to pass in a vrf on the connect call? */
1528         vrf_id = inp->def_vrf_id;
1529
1530
1531         /* We are GOOD to go */
1532         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1533             (struct thread *)p
1534             );
1535         if (stcb == NULL) {
1536                 /* Gak! no memory */
1537                 goto out_now;
1538         }
1539         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1540                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1541                 /* Set the connected flag so we can queue data */
1542                 soisconnecting(so);
1543         }
1544         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1545         /* move to second address */
1546         switch (sa->sa_family) {
1547 #ifdef INET
1548         case AF_INET:
1549                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1550                 break;
1551 #endif
1552 #ifdef INET6
1553         case AF_INET6:
1554                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1555                 break;
1556 #endif
1557         default:
1558                 break;
1559         }
1560
1561         error = 0;
1562         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1563         /* Fill in the return id */
1564         if (error) {
1565                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1566                 goto out_now;
1567         }
1568         a_id = (sctp_assoc_t *) optval;
1569         *a_id = sctp_get_associd(stcb);
1570
1571         /* initialize authentication parameters for the assoc */
1572         sctp_initialize_auth_params(inp, stcb);
1573
1574         if (delay) {
1575                 /* doing delayed connection */
1576                 stcb->asoc.delayed_connection = 1;
1577                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1578         } else {
1579                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1580                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1581         }
1582         SCTP_TCB_UNLOCK(stcb);
1583         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1584                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1585                 /* Set the connected flag so we can queue data */
1586                 soisconnecting(so);
1587         }
1588 out_now:
1589         if (creat_lock_on) {
1590                 SCTP_ASOC_CREATE_UNLOCK(inp);
1591         }
1592         SCTP_INP_DECR_REF(inp);
1593         return (error);
1594 }
1595
1596 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1597         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1598             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1599                 SCTP_INP_RLOCK(inp); \
1600                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1601                 if (stcb) { \
1602                         SCTP_TCB_LOCK(stcb); \
1603                 } \
1604                 SCTP_INP_RUNLOCK(inp); \
1605         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1606                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1607                 if (stcb == NULL) { \
1608                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1609                         error = ENOENT; \
1610                         break; \
1611                 } \
1612         } else { \
1613                 stcb = NULL; \
1614         } \
1615   }
1616
1617
1618 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1619         if (size < sizeof(type)) { \
1620                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1621                 error = EINVAL; \
1622                 break; \
1623         } else { \
1624                 destp = (type *)srcp; \
1625         } \
1626       }
1627
1628 static int
1629 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1630     void *p)
1631 {
1632         struct sctp_inpcb *inp = NULL;
1633         int error, val = 0;
1634         struct sctp_tcb *stcb = NULL;
1635
1636         if (optval == NULL) {
1637                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1638                 return (EINVAL);
1639         }
1640         inp = (struct sctp_inpcb *)so->so_pcb;
1641         if (inp == NULL) {
1642                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1643                 return EINVAL;
1644         }
1645         error = 0;
1646
1647         switch (optname) {
1648         case SCTP_NODELAY:
1649         case SCTP_AUTOCLOSE:
1650         case SCTP_EXPLICIT_EOR:
1651         case SCTP_AUTO_ASCONF:
1652         case SCTP_DISABLE_FRAGMENTS:
1653         case SCTP_I_WANT_MAPPED_V4_ADDR:
1654         case SCTP_USE_EXT_RCVINFO:
1655                 SCTP_INP_RLOCK(inp);
1656                 switch (optname) {
1657                 case SCTP_DISABLE_FRAGMENTS:
1658                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1659                         break;
1660                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1661                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1662                         break;
1663                 case SCTP_AUTO_ASCONF:
1664                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1665                                 /* only valid for bound all sockets */
1666                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1667                         } else {
1668                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1669                                 error = EINVAL;
1670                                 goto flags_out;
1671                         }
1672                         break;
1673                 case SCTP_EXPLICIT_EOR:
1674                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1675                         break;
1676                 case SCTP_NODELAY:
1677                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1678                         break;
1679                 case SCTP_USE_EXT_RCVINFO:
1680                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1681                         break;
1682                 case SCTP_AUTOCLOSE:
1683                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1684                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1685                         else
1686                                 val = 0;
1687                         break;
1688
1689                 default:
1690                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1691                         error = ENOPROTOOPT;
1692                 }               /* end switch (sopt->sopt_name) */
1693                 if (*optsize < sizeof(val)) {
1694                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1695                         error = EINVAL;
1696                 }
1697 flags_out:
1698                 SCTP_INP_RUNLOCK(inp);
1699                 if (error == 0) {
1700                         /* return the option value */
1701                         *(int *)optval = val;
1702                         *optsize = sizeof(val);
1703                 }
1704                 break;
1705         case SCTP_GET_PACKET_LOG:
1706                 {
1707 #ifdef  SCTP_PACKET_LOGGING
1708                         uint8_t *target;
1709                         int ret;
1710
1711                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1712                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1713                         *optsize = ret;
1714 #else
1715                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1716                         error = EOPNOTSUPP;
1717 #endif
1718                         break;
1719                 }
1720         case SCTP_REUSE_PORT:
1721                 {
1722                         uint32_t *value;
1723
1724                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1725                                 /* Can't do this for a 1-m socket */
1726                                 error = EINVAL;
1727                                 break;
1728                         }
1729                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1730                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1731                         *optsize = sizeof(uint32_t);
1732                         break;
1733                 }
1734         case SCTP_PARTIAL_DELIVERY_POINT:
1735                 {
1736                         uint32_t *value;
1737
1738                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1739                         *value = inp->partial_delivery_point;
1740                         *optsize = sizeof(uint32_t);
1741                         break;
1742                 }
1743         case SCTP_FRAGMENT_INTERLEAVE:
1744                 {
1745                         uint32_t *value;
1746
1747                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1748                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1749                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1750                                         *value = SCTP_FRAG_LEVEL_2;
1751                                 } else {
1752                                         *value = SCTP_FRAG_LEVEL_1;
1753                                 }
1754                         } else {
1755                                 *value = SCTP_FRAG_LEVEL_0;
1756                         }
1757                         *optsize = sizeof(uint32_t);
1758                         break;
1759                 }
1760         case SCTP_CMT_ON_OFF:
1761                 {
1762                         struct sctp_assoc_value *av;
1763
1764                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1765                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1766                         if (stcb) {
1767                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1768                                 SCTP_TCB_UNLOCK(stcb);
1769                         } else {
1770                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1771                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1772                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1773                                         SCTP_INP_RLOCK(inp);
1774                                         av->assoc_value = inp->sctp_cmt_on_off;
1775                                         SCTP_INP_RUNLOCK(inp);
1776                                 } else {
1777                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1778                                         error = EINVAL;
1779                                 }
1780                         }
1781                         if (error == 0) {
1782                                 *optsize = sizeof(struct sctp_assoc_value);
1783                         }
1784                         break;
1785                 }
1786         case SCTP_PLUGGABLE_CC:
1787                 {
1788                         struct sctp_assoc_value *av;
1789
1790                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1791                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1792                         if (stcb) {
1793                                 av->assoc_value = stcb->asoc.congestion_control_module;
1794                                 SCTP_TCB_UNLOCK(stcb);
1795                         } else {
1796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1798                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1799                                         SCTP_INP_RLOCK(inp);
1800                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1801                                         SCTP_INP_RUNLOCK(inp);
1802                                 } else {
1803                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1804                                         error = EINVAL;
1805                                 }
1806                         }
1807                         if (error == 0) {
1808                                 *optsize = sizeof(struct sctp_assoc_value);
1809                         }
1810                         break;
1811                 }
1812         case SCTP_CC_OPTION:
1813                 {
1814                         struct sctp_cc_option *cc_opt;
1815
1816                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1817                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1818                         if (stcb == NULL) {
1819                                 error = EINVAL;
1820                         } else {
1821                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1822                                         error = ENOTSUP;
1823                                 } else {
1824                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1825                                         *optsize = sizeof(struct sctp_cc_option);
1826                                 }
1827                                 SCTP_TCB_UNLOCK(stcb);
1828                         }
1829                         break;
1830                 }
1831         case SCTP_PLUGGABLE_SS:
1832                 {
1833                         struct sctp_assoc_value *av;
1834
1835                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1836                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1837                         if (stcb) {
1838                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1839                                 SCTP_TCB_UNLOCK(stcb);
1840                         } else {
1841                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1842                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1843                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1844                                         SCTP_INP_RLOCK(inp);
1845                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1846                                         SCTP_INP_RUNLOCK(inp);
1847                                 } else {
1848                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1849                                         error = EINVAL;
1850                                 }
1851                         }
1852                         if (error == 0) {
1853                                 *optsize = sizeof(struct sctp_assoc_value);
1854                         }
1855                         break;
1856                 }
1857         case SCTP_SS_VALUE:
1858                 {
1859                         struct sctp_stream_value *av;
1860
1861                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1862                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1863                         if (stcb) {
1864                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1865                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1866                                     &av->stream_value) < 0)) {
1867                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1868                                         error = EINVAL;
1869                                 } else {
1870                                         *optsize = sizeof(struct sctp_stream_value);
1871                                 }
1872                                 SCTP_TCB_UNLOCK(stcb);
1873                         } else {
1874                                 /*
1875                                  * Can't get stream value without
1876                                  * association
1877                                  */
1878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1879                                 error = EINVAL;
1880                         }
1881                         break;
1882                 }
1883         case SCTP_GET_ADDR_LEN:
1884                 {
1885                         struct sctp_assoc_value *av;
1886
1887                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1888                         error = EINVAL;
1889 #ifdef INET
1890                         if (av->assoc_value == AF_INET) {
1891                                 av->assoc_value = sizeof(struct sockaddr_in);
1892                                 error = 0;
1893                         }
1894 #endif
1895 #ifdef INET6
1896                         if (av->assoc_value == AF_INET6) {
1897                                 av->assoc_value = sizeof(struct sockaddr_in6);
1898                                 error = 0;
1899                         }
1900 #endif
1901                         if (error) {
1902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1903                         } else {
1904                                 *optsize = sizeof(struct sctp_assoc_value);
1905                         }
1906                         break;
1907                 }
1908         case SCTP_GET_ASSOC_NUMBER:
1909                 {
1910                         uint32_t *value, cnt;
1911
1912                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1913                         cnt = 0;
1914                         SCTP_INP_RLOCK(inp);
1915                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1916                                 cnt++;
1917                         }
1918                         SCTP_INP_RUNLOCK(inp);
1919                         *value = cnt;
1920                         *optsize = sizeof(uint32_t);
1921                         break;
1922                 }
1923         case SCTP_GET_ASSOC_ID_LIST:
1924                 {
1925                         struct sctp_assoc_ids *ids;
1926                         unsigned int at, limit;
1927
1928                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1929                         at = 0;
1930                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1931                         SCTP_INP_RLOCK(inp);
1932                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1933                                 if (at < limit) {
1934                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1935                                 } else {
1936                                         error = EINVAL;
1937                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1938                                         break;
1939                                 }
1940                         }
1941                         SCTP_INP_RUNLOCK(inp);
1942                         if (error == 0) {
1943                                 ids->gaids_number_of_ids = at;
1944                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1945                         }
1946                         break;
1947                 }
1948         case SCTP_CONTEXT:
1949                 {
1950                         struct sctp_assoc_value *av;
1951
1952                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1953                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1954
1955                         if (stcb) {
1956                                 av->assoc_value = stcb->asoc.context;
1957                                 SCTP_TCB_UNLOCK(stcb);
1958                         } else {
1959                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1960                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1961                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1962                                         SCTP_INP_RLOCK(inp);
1963                                         av->assoc_value = inp->sctp_context;
1964                                         SCTP_INP_RUNLOCK(inp);
1965                                 } else {
1966                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1967                                         error = EINVAL;
1968                                 }
1969                         }
1970                         if (error == 0) {
1971                                 *optsize = sizeof(struct sctp_assoc_value);
1972                         }
1973                         break;
1974                 }
1975         case SCTP_VRF_ID:
1976                 {
1977                         uint32_t *default_vrfid;
1978
1979                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1980                         *default_vrfid = inp->def_vrf_id;
1981                         *optsize = sizeof(uint32_t);
1982                         break;
1983                 }
1984         case SCTP_GET_ASOC_VRF:
1985                 {
1986                         struct sctp_assoc_value *id;
1987
1988                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1989                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1990                         if (stcb == NULL) {
1991                                 error = EINVAL;
1992                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1993                         } else {
1994                                 id->assoc_value = stcb->asoc.vrf_id;
1995                                 *optsize = sizeof(struct sctp_assoc_value);
1996                         }
1997                         break;
1998                 }
1999         case SCTP_GET_VRF_IDS:
2000                 {
2001                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2002                         error = EOPNOTSUPP;
2003                         break;
2004                 }
2005         case SCTP_GET_NONCE_VALUES:
2006                 {
2007                         struct sctp_get_nonce_values *gnv;
2008
2009                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2010                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2011
2012                         if (stcb) {
2013                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2014                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2015                                 SCTP_TCB_UNLOCK(stcb);
2016                                 *optsize = sizeof(struct sctp_get_nonce_values);
2017                         } else {
2018                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2019                                 error = ENOTCONN;
2020                         }
2021                         break;
2022                 }
2023         case SCTP_DELAYED_SACK:
2024                 {
2025                         struct sctp_sack_info *sack;
2026
2027                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2028                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2029                         if (stcb) {
2030                                 sack->sack_delay = stcb->asoc.delayed_ack;
2031                                 sack->sack_freq = stcb->asoc.sack_freq;
2032                                 SCTP_TCB_UNLOCK(stcb);
2033                         } else {
2034                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2035                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2036                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2037                                         SCTP_INP_RLOCK(inp);
2038                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2039                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2040                                         SCTP_INP_RUNLOCK(inp);
2041                                 } else {
2042                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2043                                         error = EINVAL;
2044                                 }
2045                         }
2046                         if (error == 0) {
2047                                 *optsize = sizeof(struct sctp_sack_info);
2048                         }
2049                         break;
2050                 }
2051         case SCTP_GET_SNDBUF_USE:
2052                 {
2053                         struct sctp_sockstat *ss;
2054
2055                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2056                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2057
2058                         if (stcb) {
2059                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2060                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2061                                     stcb->asoc.size_on_all_streams);
2062                                 SCTP_TCB_UNLOCK(stcb);
2063                                 *optsize = sizeof(struct sctp_sockstat);
2064                         } else {
2065                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2066                                 error = ENOTCONN;
2067                         }
2068                         break;
2069                 }
2070         case SCTP_MAX_BURST:
2071                 {
2072                         struct sctp_assoc_value *av;
2073
2074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2076
2077                         if (stcb) {
2078                                 av->assoc_value = stcb->asoc.max_burst;
2079                                 SCTP_TCB_UNLOCK(stcb);
2080                         } else {
2081                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2082                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2083                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2084                                         SCTP_INP_RLOCK(inp);
2085                                         av->assoc_value = inp->sctp_ep.max_burst;
2086                                         SCTP_INP_RUNLOCK(inp);
2087                                 } else {
2088                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2089                                         error = EINVAL;
2090                                 }
2091                         }
2092                         if (error == 0) {
2093                                 *optsize = sizeof(struct sctp_assoc_value);
2094                         }
2095                         break;
2096                 }
2097         case SCTP_MAXSEG:
2098                 {
2099                         struct sctp_assoc_value *av;
2100                         int ovh;
2101
2102                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2103                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2104
2105                         if (stcb) {
2106                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2107                                 SCTP_TCB_UNLOCK(stcb);
2108                         } else {
2109                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2110                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2111                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2112                                         SCTP_INP_RLOCK(inp);
2113                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2114                                                 ovh = SCTP_MED_OVERHEAD;
2115                                         } else {
2116                                                 ovh = SCTP_MED_V4_OVERHEAD;
2117                                         }
2118                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2119                                                 av->assoc_value = 0;
2120                                         else
2121                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2122                                         SCTP_INP_RUNLOCK(inp);
2123                                 } else {
2124                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2125                                         error = EINVAL;
2126                                 }
2127                         }
2128                         if (error == 0) {
2129                                 *optsize = sizeof(struct sctp_assoc_value);
2130                         }
2131                         break;
2132                 }
2133         case SCTP_GET_STAT_LOG:
2134                 error = sctp_fill_stat_log(optval, optsize);
2135                 break;
2136         case SCTP_EVENTS:
2137                 {
2138                         struct sctp_event_subscribe *events;
2139
2140                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2141                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2142                         SCTP_INP_RLOCK(inp);
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2144                                 events->sctp_data_io_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2147                                 events->sctp_association_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2150                                 events->sctp_address_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2153                                 events->sctp_send_failure_event = 1;
2154
2155                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2156                                 events->sctp_peer_error_event = 1;
2157
2158                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2159                                 events->sctp_shutdown_event = 1;
2160
2161                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2162                                 events->sctp_partial_delivery_event = 1;
2163
2164                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2165                                 events->sctp_adaptation_layer_event = 1;
2166
2167                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2168                                 events->sctp_authentication_event = 1;
2169
2170                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2171                                 events->sctp_sender_dry_event = 1;
2172
2173                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2174                                 events->sctp_stream_reset_event = 1;
2175                         SCTP_INP_RUNLOCK(inp);
2176                         *optsize = sizeof(struct sctp_event_subscribe);
2177                         break;
2178                 }
2179         case SCTP_ADAPTATION_LAYER:
2180                 {
2181                         uint32_t *value;
2182
2183                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2184
2185                         SCTP_INP_RLOCK(inp);
2186                         *value = inp->sctp_ep.adaptation_layer_indicator;
2187                         SCTP_INP_RUNLOCK(inp);
2188                         *optsize = sizeof(uint32_t);
2189                         break;
2190                 }
2191         case SCTP_SET_INITIAL_DBG_SEQ:
2192                 {
2193                         uint32_t *value;
2194
2195                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2196                         SCTP_INP_RLOCK(inp);
2197                         *value = inp->sctp_ep.initial_sequence_debug;
2198                         SCTP_INP_RUNLOCK(inp);
2199                         *optsize = sizeof(uint32_t);
2200                         break;
2201                 }
2202         case SCTP_GET_LOCAL_ADDR_SIZE:
2203                 {
2204                         uint32_t *value;
2205
2206                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2207                         SCTP_INP_RLOCK(inp);
2208                         *value = sctp_count_max_addresses(inp);
2209                         SCTP_INP_RUNLOCK(inp);
2210                         *optsize = sizeof(uint32_t);
2211                         break;
2212                 }
2213         case SCTP_GET_REMOTE_ADDR_SIZE:
2214                 {
2215                         uint32_t *value;
2216                         size_t size;
2217                         struct sctp_nets *net;
2218
2219                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2220                         /* FIXME MT: change to sctp_assoc_value? */
2221                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2222
2223                         if (stcb) {
2224                                 size = 0;
2225                                 /* Count the sizes */
2226                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2227                                         switch (net->ro._l_addr.sa.sa_family) {
2228 #ifdef INET
2229                                         case AF_INET:
2230 #ifdef INET6
2231                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2232                                                         size += sizeof(struct sockaddr_in6);
2233                                                 } else {
2234                                                         size += sizeof(struct sockaddr_in);
2235                                                 }
2236 #else
2237                                                 size += sizeof(struct sockaddr_in);
2238 #endif
2239                                                 break;
2240 #endif
2241 #ifdef INET6
2242                                         case AF_INET6:
2243                                                 size += sizeof(struct sockaddr_in6);
2244                                                 break;
2245 #endif
2246                                         default:
2247                                                 break;
2248                                         }
2249                                 }
2250                                 SCTP_TCB_UNLOCK(stcb);
2251                                 *value = (uint32_t) size;
2252                                 *optsize = sizeof(uint32_t);
2253                         } else {
2254                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2255                                 error = ENOTCONN;
2256                         }
2257                         break;
2258                 }
2259         case SCTP_GET_PEER_ADDRESSES:
2260                 /*
2261                  * Get the address information, an array is passed in to
2262                  * fill up we pack it.
2263                  */
2264                 {
2265                         size_t cpsz, left;
2266                         struct sockaddr_storage *sas;
2267                         struct sctp_nets *net;
2268                         struct sctp_getaddresses *saddr;
2269
2270                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2271                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2272
2273                         if (stcb) {
2274                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2275                                 *optsize = sizeof(struct sctp_getaddresses);
2276                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2277
2278                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2279                                         switch (net->ro._l_addr.sa.sa_family) {
2280 #ifdef INET
2281                                         case AF_INET:
2282 #ifdef INET6
2283                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2284                                                         cpsz = sizeof(struct sockaddr_in6);
2285                                                 } else {
2286                                                         cpsz = sizeof(struct sockaddr_in);
2287                                                 }
2288 #else
2289                                                 cpsz = sizeof(struct sockaddr_in);
2290 #endif
2291                                                 break;
2292 #endif
2293 #ifdef INET6
2294                                         case AF_INET6:
2295                                                 cpsz = sizeof(struct sockaddr_in6);
2296                                                 break;
2297 #endif
2298                                         default:
2299                                                 cpsz = 0;
2300                                                 break;
2301                                         }
2302                                         if (cpsz == 0) {
2303                                                 break;
2304                                         }
2305                                         if (left < cpsz) {
2306                                                 /* not enough room. */
2307                                                 break;
2308                                         }
2309 #if defined(INET) && defined(INET6)
2310                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2311                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2312                                                 /* Must map the address */
2313                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2314                                                     (struct sockaddr_in6 *)sas);
2315                                         } else {
2316                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2317                                         }
2318 #else
2319                                         memcpy(sas, &net->ro._l_addr, cpsz);
2320 #endif
2321                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2322
2323                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2324                                         left -= cpsz;
2325                                         *optsize += cpsz;
2326                                 }
2327                                 SCTP_TCB_UNLOCK(stcb);
2328                         } else {
2329                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2330                                 error = ENOENT;
2331                         }
2332                         break;
2333                 }
2334         case SCTP_GET_LOCAL_ADDRESSES:
2335                 {
2336                         size_t limit, actual;
2337                         struct sockaddr_storage *sas;
2338                         struct sctp_getaddresses *saddr;
2339
2340                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2341                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2342
2343                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2344                         limit = *optsize - sizeof(sctp_assoc_t);
2345                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2346                         if (stcb) {
2347                                 SCTP_TCB_UNLOCK(stcb);
2348                         }
2349                         *optsize = sizeof(struct sockaddr_storage) + actual;
2350                         break;
2351                 }
2352         case SCTP_PEER_ADDR_PARAMS:
2353                 {
2354                         struct sctp_paddrparams *paddrp;
2355                         struct sctp_nets *net;
2356                         struct sockaddr *addr;
2357
2358 #if defined(INET) && defined(INET6)
2359                         struct sockaddr_in sin_store;
2360
2361 #endif
2362
2363                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2364                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2365
2366 #if defined(INET) && defined(INET6)
2367                         if (paddrp->spp_address.ss_family == AF_INET6) {
2368                                 struct sockaddr_in6 *sin6;
2369
2370                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2371                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2372                                         in6_sin6_2_sin(&sin_store, sin6);
2373                                         addr = (struct sockaddr *)&sin_store;
2374                                 } else {
2375                                         addr = (struct sockaddr *)&paddrp->spp_address;
2376                                 }
2377                         } else {
2378                                 addr = (struct sockaddr *)&paddrp->spp_address;
2379                         }
2380 #else
2381                         addr = (struct sockaddr *)&paddrp->spp_address;
2382 #endif
2383                         if (stcb != NULL) {
2384                                 net = sctp_findnet(stcb, addr);
2385                         } else {
2386                                 /*
2387                                  * We increment here since
2388                                  * sctp_findassociation_ep_addr() wil do a
2389                                  * decrement if it finds the stcb as long as
2390                                  * the locked tcb (last argument) is NOT a
2391                                  * TCB.. aka NULL.
2392                                  */
2393                                 net = NULL;
2394                                 SCTP_INP_INCR_REF(inp);
2395                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2396                                 if (stcb == NULL) {
2397                                         SCTP_INP_DECR_REF(inp);
2398                                 }
2399                         }
2400                         if ((stcb != NULL) && (net == NULL)) {
2401 #ifdef INET
2402                                 if (addr->sa_family == AF_INET) {
2403                                         struct sockaddr_in *sin;
2404
2405                                         sin = (struct sockaddr_in *)addr;
2406                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2407                                                 error = EINVAL;
2408                                                 SCTP_TCB_UNLOCK(stcb);
2409                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2410                                                 break;
2411                                         }
2412                                 } else
2413 #endif
2414 #ifdef INET6
2415                                 if (addr->sa_family == AF_INET6) {
2416                                         struct sockaddr_in6 *sin6;
2417
2418                                         sin6 = (struct sockaddr_in6 *)addr;
2419                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2420                                                 error = EINVAL;
2421                                                 SCTP_TCB_UNLOCK(stcb);
2422                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2423                                                 break;
2424                                         }
2425                                 } else
2426 #endif
2427                                 {
2428                                         error = EAFNOSUPPORT;
2429                                         SCTP_TCB_UNLOCK(stcb);
2430                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2431                                         break;
2432                                 }
2433                         }
2434                         if (stcb != NULL) {
2435                                 /* Applies to the specific association */
2436                                 paddrp->spp_flags = 0;
2437                                 if (net != NULL) {
2438                                         int ovh;
2439
2440                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2441                                                 ovh = SCTP_MED_OVERHEAD;
2442                                         } else {
2443                                                 ovh = SCTP_MED_V4_OVERHEAD;
2444                                         }
2445
2446                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2447                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2448                                         paddrp->spp_pathmtu = net->mtu - ovh;
2449                                         /* get flags for HB */
2450                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2451                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2452                                         } else {
2453                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2454                                         }
2455                                         /* get flags for PMTU */
2456                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2457                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2458                                         } else {
2459                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2460                                         }
2461                                         if (net->dscp & 0x01) {
2462                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2463                                                 paddrp->spp_flags |= SPP_DSCP;
2464                                         }
2465 #ifdef INET6
2466                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2467                                             (net->flowlabel & 0x80000000)) {
2468                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2469                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2470                                         }
2471 #endif
2472                                 } else {
2473                                         /*
2474                                          * No destination so return default
2475                                          * value
2476                                          */
2477                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2478                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2479                                         if (stcb->asoc.default_dscp & 0x01) {
2480                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2481                                                 paddrp->spp_flags |= SPP_DSCP;
2482                                         }
2483 #ifdef INET6
2484                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2485                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2486                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2487                                         }
2488 #endif
2489                                         /* default settings should be these */
2490                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2491                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2492                                         } else {
2493                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2494                                         }
2495                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2496                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2497                                         } else {
2498                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2499                                         }
2500                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2501                                 }
2502                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2503                                 SCTP_TCB_UNLOCK(stcb);
2504                         } else {
2505                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2506                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2507                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2508                                         /* Use endpoint defaults */
2509                                         SCTP_INP_RLOCK(inp);
2510                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2511                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2512                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2513                                         /* get inp's default */
2514                                         if (inp->sctp_ep.default_dscp & 0x01) {
2515                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2516                                                 paddrp->spp_flags |= SPP_DSCP;
2517                                         }
2518 #ifdef INET6
2519                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2520                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2521                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2522                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2523                                         }
2524 #endif
2525                                         /* can't return this */
2526                                         paddrp->spp_pathmtu = 0;
2527
2528                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2529                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2530                                         } else {
2531                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2532                                         }
2533                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2534                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2535                                         } else {
2536                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2537                                         }
2538                                         SCTP_INP_RUNLOCK(inp);
2539                                 } else {
2540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2541                                         error = EINVAL;
2542                                 }
2543                         }
2544                         if (error == 0) {
2545                                 *optsize = sizeof(struct sctp_paddrparams);
2546                         }
2547                         break;
2548                 }
2549         case SCTP_GET_PEER_ADDR_INFO:
2550                 {
2551                         struct sctp_paddrinfo *paddri;
2552                         struct sctp_nets *net;
2553                         struct sockaddr *addr;
2554
2555 #if defined(INET) && defined(INET6)
2556                         struct sockaddr_in sin_store;
2557
2558 #endif
2559
2560                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2561                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2562
2563 #if defined(INET) && defined(INET6)
2564                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2565                                 struct sockaddr_in6 *sin6;
2566
2567                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2568                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2569                                         in6_sin6_2_sin(&sin_store, sin6);
2570                                         addr = (struct sockaddr *)&sin_store;
2571                                 } else {
2572                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2573                                 }
2574                         } else {
2575                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2576                         }
2577 #else
2578                         addr = (struct sockaddr *)&paddri->spinfo_address;
2579 #endif
2580                         if (stcb != NULL) {
2581                                 net = sctp_findnet(stcb, addr);
2582                         } else {
2583                                 /*
2584                                  * We increment here since
2585                                  * sctp_findassociation_ep_addr() wil do a
2586                                  * decrement if it finds the stcb as long as
2587                                  * the locked tcb (last argument) is NOT a
2588                                  * TCB.. aka NULL.
2589                                  */
2590                                 net = NULL;
2591                                 SCTP_INP_INCR_REF(inp);
2592                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2593                                 if (stcb == NULL) {
2594                                         SCTP_INP_DECR_REF(inp);
2595                                 }
2596                         }
2597
2598                         if ((stcb != NULL) && (net != NULL)) {
2599                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2600                                         /* It's unconfirmed */
2601                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2602                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2603                                         /* It's active */
2604                                         paddri->spinfo_state = SCTP_ACTIVE;
2605                                 } else {
2606                                         /* It's inactive */
2607                                         paddri->spinfo_state = SCTP_INACTIVE;
2608                                 }
2609                                 paddri->spinfo_cwnd = net->cwnd;
2610                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2611                                 paddri->spinfo_rto = net->RTO;
2612                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2613                                 paddri->spinfo_mtu = net->mtu;
2614                                 SCTP_TCB_UNLOCK(stcb);
2615                                 *optsize = sizeof(struct sctp_paddrinfo);
2616                         } else {
2617                                 if (stcb != NULL) {
2618                                         SCTP_TCB_UNLOCK(stcb);
2619                                 }
2620                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2621                                 error = ENOENT;
2622                         }
2623                         break;
2624                 }
2625         case SCTP_PCB_STATUS:
2626                 {
2627                         struct sctp_pcbinfo *spcb;
2628
2629                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2630                         sctp_fill_pcbinfo(spcb);
2631                         *optsize = sizeof(struct sctp_pcbinfo);
2632                         break;
2633                 }
2634         case SCTP_STATUS:
2635                 {
2636                         struct sctp_nets *net;
2637                         struct sctp_status *sstat;
2638
2639                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2640                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2641
2642                         if (stcb == NULL) {
2643                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2644                                 error = EINVAL;
2645                                 break;
2646                         }
2647                         /*
2648                          * I think passing the state is fine since
2649                          * sctp_constants.h will be available to the user
2650                          * land.
2651                          */
2652                         sstat->sstat_state = stcb->asoc.state;
2653                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2654                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2655                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2656                         /*
2657                          * We can't include chunks that have been passed to
2658                          * the socket layer. Only things in queue.
2659                          */
2660                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2661                             stcb->asoc.cnt_on_all_streams);
2662
2663
2664                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2665                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2666                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2667                         memcpy(&sstat->sstat_primary.spinfo_address,
2668                             &stcb->asoc.primary_destination->ro._l_addr,
2669                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2670                         net = stcb->asoc.primary_destination;
2671                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2672                         /*
2673                          * Again the user can get info from sctp_constants.h
2674                          * for what the state of the network is.
2675                          */
2676                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2677                                 /* It's unconfirmed */
2678                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2679                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2680                                 /* It's active */
2681                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2682                         } else {
2683                                 /* It's inactive */
2684                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2685                         }
2686                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2687                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2688                         sstat->sstat_primary.spinfo_rto = net->RTO;
2689                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2690                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2691                         SCTP_TCB_UNLOCK(stcb);
2692                         *optsize = sizeof(struct sctp_status);
2693                         break;
2694                 }
2695         case SCTP_RTOINFO:
2696                 {
2697                         struct sctp_rtoinfo *srto;
2698
2699                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2700                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2701
2702                         if (stcb) {
2703                                 srto->srto_initial = stcb->asoc.initial_rto;
2704                                 srto->srto_max = stcb->asoc.maxrto;
2705                                 srto->srto_min = stcb->asoc.minrto;
2706                                 SCTP_TCB_UNLOCK(stcb);
2707                         } else {
2708                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2709                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2710                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2711                                         SCTP_INP_RLOCK(inp);
2712                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2713                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2714                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2715                                         SCTP_INP_RUNLOCK(inp);
2716                                 } else {
2717                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2718                                         error = EINVAL;
2719                                 }
2720                         }
2721                         if (error == 0) {
2722                                 *optsize = sizeof(struct sctp_rtoinfo);
2723                         }
2724                         break;
2725                 }
2726         case SCTP_TIMEOUTS:
2727                 {
2728                         struct sctp_timeouts *stimo;
2729
2730                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2731                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2732
2733                         if (stcb) {
2734                                 stimo->stimo_init = stcb->asoc.timoinit;
2735                                 stimo->stimo_data = stcb->asoc.timodata;
2736                                 stimo->stimo_sack = stcb->asoc.timosack;
2737                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2738                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2739                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2740                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2741                                 SCTP_TCB_UNLOCK(stcb);
2742                                 *optsize = sizeof(struct sctp_timeouts);
2743                         } else {
2744                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2745                                 error = EINVAL;
2746                         }
2747                         break;
2748                 }
2749         case SCTP_ASSOCINFO:
2750                 {
2751                         struct sctp_assocparams *sasoc;
2752
2753                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2754                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2755
2756                         if (stcb) {
2757                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2758                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2759                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2760                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2761                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2762                                 SCTP_TCB_UNLOCK(stcb);
2763                         } else {
2764                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2765                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2766                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2767                                         SCTP_INP_RLOCK(inp);
2768                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2769                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2770                                         sasoc->sasoc_number_peer_destinations = 0;
2771                                         sasoc->sasoc_peer_rwnd = 0;
2772                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2773                                         SCTP_INP_RUNLOCK(inp);
2774                                 } else {
2775                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2776                                         error = EINVAL;
2777                                 }
2778                         }
2779                         if (error == 0) {
2780                                 *optsize = sizeof(struct sctp_assocparams);
2781                         }
2782                         break;
2783                 }
2784         case SCTP_DEFAULT_SEND_PARAM:
2785                 {
2786                         struct sctp_sndrcvinfo *s_info;
2787
2788                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2789                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2790
2791                         if (stcb) {
2792                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2793                                 SCTP_TCB_UNLOCK(stcb);
2794                         } else {
2795                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2796                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2797                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2798                                         SCTP_INP_RLOCK(inp);
2799                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2800                                         SCTP_INP_RUNLOCK(inp);
2801                                 } else {
2802                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2803                                         error = EINVAL;
2804                                 }
2805                         }
2806                         if (error == 0) {
2807                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2808                         }
2809                         break;
2810                 }
2811         case SCTP_INITMSG:
2812                 {
2813                         struct sctp_initmsg *sinit;
2814
2815                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2816                         SCTP_INP_RLOCK(inp);
2817                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2818                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2819                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2820                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2821                         SCTP_INP_RUNLOCK(inp);
2822                         *optsize = sizeof(struct sctp_initmsg);
2823                         break;
2824                 }
2825         case SCTP_PRIMARY_ADDR:
2826                 /* we allow a "get" operation on this */
2827                 {
2828                         struct sctp_setprim *ssp;
2829
2830                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2831                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2832
2833                         if (stcb) {
2834                                 union sctp_sockstore *addr;
2835
2836                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2837                                 switch (addr->sa.sa_family) {
2838 #ifdef INET
2839                                 case AF_INET:
2840 #ifdef INET6
2841                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2842                                                 in6_sin_2_v4mapsin6(&addr->sin,
2843                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2844                                         } else {
2845                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2846                                         }
2847 #else
2848                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2849 #endif
2850                                         break;
2851 #endif
2852 #ifdef INET6
2853                                 case AF_INET6:
2854                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2855                                         break;
2856 #endif
2857                                 default:
2858                                         break;
2859                                 }
2860                                 SCTP_TCB_UNLOCK(stcb);
2861                                 *optsize = sizeof(struct sctp_setprim);
2862                         } else {
2863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2864                                 error = EINVAL;
2865                         }
2866                         break;
2867                 }
2868         case SCTP_HMAC_IDENT:
2869                 {
2870                         struct sctp_hmacalgo *shmac;
2871                         sctp_hmaclist_t *hmaclist;
2872                         uint32_t size;
2873                         int i;
2874
2875                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2876
2877                         SCTP_INP_RLOCK(inp);
2878                         hmaclist = inp->sctp_ep.local_hmacs;
2879                         if (hmaclist == NULL) {
2880                                 /* no HMACs to return */
2881                                 *optsize = sizeof(*shmac);
2882                                 SCTP_INP_RUNLOCK(inp);
2883                                 break;
2884                         }
2885                         /* is there room for all of the hmac ids? */
2886                         size = sizeof(*shmac) + (hmaclist->num_algo *
2887                             sizeof(shmac->shmac_idents[0]));
2888                         if ((size_t)(*optsize) < size) {
2889                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2890                                 error = EINVAL;
2891                                 SCTP_INP_RUNLOCK(inp);
2892                                 break;
2893                         }
2894                         /* copy in the list */
2895                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2896                         for (i = 0; i < hmaclist->num_algo; i++) {
2897                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2898                         }
2899                         SCTP_INP_RUNLOCK(inp);
2900                         *optsize = size;
2901                         break;
2902                 }
2903         case SCTP_AUTH_ACTIVE_KEY:
2904                 {
2905                         struct sctp_authkeyid *scact;
2906
2907                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2908                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2909
2910                         if (stcb) {
2911                                 /* get the active key on the assoc */
2912                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2913                                 SCTP_TCB_UNLOCK(stcb);
2914                         } else {
2915                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2916                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2917                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2918                                         /* get the endpoint active key */
2919                                         SCTP_INP_RLOCK(inp);
2920                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2921                                         SCTP_INP_RUNLOCK(inp);
2922                                 } else {
2923                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2924                                         error = EINVAL;
2925                                 }
2926                         }
2927                         if (error == 0) {
2928                                 *optsize = sizeof(struct sctp_authkeyid);
2929                         }
2930                         break;
2931                 }
2932         case SCTP_LOCAL_AUTH_CHUNKS:
2933                 {
2934                         struct sctp_authchunks *sac;
2935                         sctp_auth_chklist_t *chklist = NULL;
2936                         size_t size = 0;
2937
2938                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2939                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2940
2941                         if (stcb) {
2942                                 /* get off the assoc */
2943                                 chklist = stcb->asoc.local_auth_chunks;
2944                                 /* is there enough space? */
2945                                 size = sctp_auth_get_chklist_size(chklist);
2946                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2947                                         error = EINVAL;
2948                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2949                                 } else {
2950                                         /* copy in the chunks */
2951                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2952                                         sac->gauth_number_of_chunks = (uint32_t) size;
2953                                         *optsize = sizeof(struct sctp_authchunks) + size;
2954                                 }
2955                                 SCTP_TCB_UNLOCK(stcb);
2956                         } else {
2957                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2958                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2959                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2960                                         /* get off the endpoint */
2961                                         SCTP_INP_RLOCK(inp);
2962                                         chklist = inp->sctp_ep.local_auth_chunks;
2963                                         /* is there enough space? */
2964                                         size = sctp_auth_get_chklist_size(chklist);
2965                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2966                                                 error = EINVAL;
2967                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2968                                         } else {
2969                                                 /* copy in the chunks */
2970                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2971                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2972                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2973                                         }
2974                                         SCTP_INP_RUNLOCK(inp);
2975                                 } else {
2976                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2977                                         error = EINVAL;
2978                                 }
2979                         }
2980                         break;
2981                 }
2982         case SCTP_PEER_AUTH_CHUNKS:
2983                 {
2984                         struct sctp_authchunks *sac;
2985                         sctp_auth_chklist_t *chklist = NULL;
2986                         size_t size = 0;
2987
2988                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2989                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2990
2991                         if (stcb) {
2992                                 /* get off the assoc */
2993                                 chklist = stcb->asoc.peer_auth_chunks;
2994                                 /* is there enough space? */
2995                                 size = sctp_auth_get_chklist_size(chklist);
2996                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2997                                         error = EINVAL;
2998                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2999                                 } else {
3000                                         /* copy in the chunks */
3001                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3002                                         sac->gauth_number_of_chunks = (uint32_t) size;
3003                                         *optsize = sizeof(struct sctp_authchunks) + size;
3004                                 }
3005                                 SCTP_TCB_UNLOCK(stcb);
3006                         } else {
3007                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3008                                 error = ENOENT;
3009                         }
3010                         break;
3011                 }
3012         case SCTP_EVENT:
3013                 {
3014                         struct sctp_event *event;
3015                         uint32_t event_type;
3016
3017                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3018                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3019
3020                         switch (event->se_type) {
3021                         case SCTP_ASSOC_CHANGE:
3022                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3023                                 break;
3024                         case SCTP_PEER_ADDR_CHANGE:
3025                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3026                                 break;
3027                         case SCTP_REMOTE_ERROR:
3028                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3029                                 break;
3030                         case SCTP_SEND_FAILED:
3031                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3032                                 break;
3033                         case SCTP_SHUTDOWN_EVENT:
3034                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3035                                 break;
3036                         case SCTP_ADAPTATION_INDICATION:
3037                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3038                                 break;
3039                         case SCTP_PARTIAL_DELIVERY_EVENT:
3040                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3041                                 break;
3042                         case SCTP_AUTHENTICATION_EVENT:
3043                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3044                                 break;
3045                         case SCTP_STREAM_RESET_EVENT:
3046                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3047                                 break;
3048                         case SCTP_SENDER_DRY_EVENT:
3049                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3050                                 break;
3051                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3052                                 event_type = 0;
3053                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3054                                 error = ENOTSUP;
3055                                 break;
3056                         case SCTP_ASSOC_RESET_EVENT:
3057                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3058                                 break;
3059                         case SCTP_STREAM_CHANGE_EVENT:
3060                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3061                                 break;
3062                         case SCTP_SEND_FAILED_EVENT:
3063                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3064                                 break;
3065                         default:
3066                                 event_type = 0;
3067                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3068                                 error = EINVAL;
3069                                 break;
3070                         }
3071                         if (event_type > 0) {
3072                                 if (stcb) {
3073                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3074                                         SCTP_TCB_UNLOCK(stcb);
3075                                 } else {
3076                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3077                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3078                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3079                                                 SCTP_INP_RLOCK(inp);
3080                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3081                                                 SCTP_INP_RUNLOCK(inp);
3082                                         } else {
3083                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3084                                                 error = EINVAL;
3085                                         }
3086                                 }
3087                         }
3088                         if (error == 0) {
3089                                 *optsize = sizeof(struct sctp_event);
3090                         }
3091                         break;
3092                 }
3093         case SCTP_RECVRCVINFO:
3094                 {
3095                         int onoff;
3096
3097                         if (*optsize < sizeof(int)) {
3098                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                 error = EINVAL;
3100                         } else {
3101                                 SCTP_INP_RLOCK(inp);
3102                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3103                                 SCTP_INP_RUNLOCK(inp);
3104                         }
3105                         if (error == 0) {
3106                                 /* return the option value */
3107                                 *(int *)optval = onoff;
3108                                 *optsize = sizeof(int);
3109                         }
3110                         break;
3111                 }
3112         case SCTP_RECVNXTINFO:
3113                 {
3114                         int onoff;
3115
3116                         if (*optsize < sizeof(int)) {
3117                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3118                                 error = EINVAL;
3119                         } else {
3120                                 SCTP_INP_RLOCK(inp);
3121                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3122                                 SCTP_INP_RUNLOCK(inp);
3123                         }
3124                         if (error == 0) {
3125                                 /* return the option value */
3126                                 *(int *)optval = onoff;
3127                                 *optsize = sizeof(int);
3128                         }
3129                         break;
3130                 }
3131         case SCTP_DEFAULT_SNDINFO:
3132                 {
3133                         struct sctp_sndinfo *info;
3134
3135                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3136                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3137
3138                         if (stcb) {
3139                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3140                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3141                                 info->snd_flags &= 0xfff0;
3142                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3143                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3144                                 SCTP_TCB_UNLOCK(stcb);
3145                         } else {
3146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3148                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3149                                         SCTP_INP_RLOCK(inp);
3150                                         info->snd_sid = inp->def_send.sinfo_stream;
3151                                         info->snd_flags = inp->def_send.sinfo_flags;
3152                                         info->snd_flags &= 0xfff0;
3153                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3154                                         info->snd_context = inp->def_send.sinfo_context;
3155                                         SCTP_INP_RUNLOCK(inp);
3156                                 } else {
3157                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3158                                         error = EINVAL;
3159                                 }
3160                         }
3161                         if (error == 0) {
3162                                 *optsize = sizeof(struct sctp_sndinfo);
3163                         }
3164                         break;
3165                 }
3166         case SCTP_DEFAULT_PRINFO:
3167                 {
3168                         struct sctp_default_prinfo *info;
3169
3170                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3171                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3172
3173                         if (stcb) {
3174                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3175                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3176                                 SCTP_TCB_UNLOCK(stcb);
3177                         } else {
3178                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3179                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3180                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3181                                         SCTP_INP_RLOCK(inp);
3182                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3183                                         info->pr_value = inp->def_send.sinfo_timetolive;
3184                                         SCTP_INP_RUNLOCK(inp);
3185                                 } else {
3186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3187                                         error = EINVAL;
3188                                 }
3189                         }
3190                         if (error == 0) {
3191                                 *optsize = sizeof(struct sctp_default_prinfo);
3192                         }
3193                         break;
3194                 }
3195         case SCTP_PEER_ADDR_THLDS:
3196                 {
3197                         struct sctp_paddrthlds *thlds;
3198                         struct sctp_nets *net;
3199                         struct sockaddr *addr;
3200
3201 #if defined(INET) && defined(INET6)
3202                         struct sockaddr_in sin_store;
3203
3204 #endif
3205
3206                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3207                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3208
3209 #if defined(INET) && defined(INET6)
3210                         if (thlds->spt_address.ss_family == AF_INET6) {
3211                                 struct sockaddr_in6 *sin6;
3212
3213                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3214                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3215                                         in6_sin6_2_sin(&sin_store, sin6);
3216                                         addr = (struct sockaddr *)&sin_store;
3217                                 } else {
3218                                         addr = (struct sockaddr *)&thlds->spt_address;
3219                                 }
3220                         } else {
3221                                 addr = (struct sockaddr *)&thlds->spt_address;
3222                         }
3223 #else
3224                         addr = (struct sockaddr *)&thlds->spt_address;
3225 #endif
3226                         if (stcb != NULL) {
3227                                 net = sctp_findnet(stcb, addr);
3228                         } else {
3229                                 /*
3230                                  * We increment here since
3231                                  * sctp_findassociation_ep_addr() wil do a
3232                                  * decrement if it finds the stcb as long as
3233                                  * the locked tcb (last argument) is NOT a
3234                                  * TCB.. aka NULL.
3235                                  */
3236                                 net = NULL;
3237                                 SCTP_INP_INCR_REF(inp);
3238                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3239                                 if (stcb == NULL) {
3240                                         SCTP_INP_DECR_REF(inp);
3241                                 }
3242                         }
3243                         if ((stcb != NULL) && (net == NULL)) {
3244 #ifdef INET
3245                                 if (addr->sa_family == AF_INET) {
3246                                         struct sockaddr_in *sin;
3247
3248                                         sin = (struct sockaddr_in *)addr;
3249                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3250                                                 error = EINVAL;
3251                                                 SCTP_TCB_UNLOCK(stcb);
3252                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3253                                                 break;
3254                                         }
3255                                 } else
3256 #endif
3257 #ifdef INET6
3258                                 if (addr->sa_family == AF_INET6) {
3259                                         struct sockaddr_in6 *sin6;
3260
3261                                         sin6 = (struct sockaddr_in6 *)addr;
3262                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3263                                                 error = EINVAL;
3264                                                 SCTP_TCB_UNLOCK(stcb);
3265                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3266                                                 break;
3267                                         }
3268                                 } else
3269 #endif
3270                                 {
3271                                         error = EAFNOSUPPORT;
3272                                         SCTP_TCB_UNLOCK(stcb);
3273                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3274                                         break;
3275                                 }
3276                         }
3277                         if (stcb != NULL) {
3278                                 if (net != NULL) {
3279                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3280                                         thlds->spt_pathpfthld = net->pf_threshold;
3281                                 } else {
3282                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3283                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3284                                 }
3285                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3286                                 SCTP_TCB_UNLOCK(stcb);
3287                         } else {
3288                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3289                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3290                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3291                                         /* Use endpoint defaults */
3292                                         SCTP_INP_RLOCK(inp);
3293                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3294                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3295                                         SCTP_INP_RUNLOCK(inp);
3296                                 } else {
3297                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3298                                         error = EINVAL;
3299                                 }
3300                         }
3301                         if (error == 0) {
3302                                 *optsize = sizeof(struct sctp_paddrthlds);
3303                         }
3304                         break;
3305                 }
3306         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3307                 {
3308                         struct sctp_udpencaps *encaps;
3309                         struct sctp_nets *net;
3310                         struct sockaddr *addr;
3311
3312 #if defined(INET) && defined(INET6)
3313                         struct sockaddr_in sin_store;
3314
3315 #endif
3316
3317                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3318                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3319
3320 #if defined(INET) && defined(INET6)
3321                         if (encaps->sue_address.ss_family == AF_INET6) {
3322                                 struct sockaddr_in6 *sin6;
3323
3324                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3325                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3326                                         in6_sin6_2_sin(&sin_store, sin6);
3327                                         addr = (struct sockaddr *)&sin_store;
3328                                 } else {
3329                                         addr = (struct sockaddr *)&encaps->sue_address;
3330                                 }
3331                         } else {
3332                                 addr = (struct sockaddr *)&encaps->sue_address;
3333                         }
3334 #else
3335                         addr = (struct sockaddr *)&encaps->sue_address;
3336 #endif
3337                         if (stcb) {
3338                                 net = sctp_findnet(stcb, addr);
3339                         } else {
3340                                 /*
3341                                  * We increment here since
3342                                  * sctp_findassociation_ep_addr() wil do a
3343                                  * decrement if it finds the stcb as long as
3344                                  * the locked tcb (last argument) is NOT a
3345                                  * TCB.. aka NULL.
3346                                  */
3347                                 net = NULL;
3348                                 SCTP_INP_INCR_REF(inp);
3349                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3350                                 if (stcb == NULL) {
3351                                         SCTP_INP_DECR_REF(inp);
3352                                 }
3353                         }
3354                         if ((stcb != NULL) && (net == NULL)) {
3355 #ifdef INET
3356                                 if (addr->sa_family == AF_INET) {
3357                                         struct sockaddr_in *sin;
3358
3359                                         sin = (struct sockaddr_in *)addr;
3360                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3361                                                 error = EINVAL;
3362                                                 SCTP_TCB_UNLOCK(stcb);
3363                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3364                                                 break;
3365                                         }
3366                                 } else
3367 #endif
3368 #ifdef INET6
3369                                 if (addr->sa_family == AF_INET6) {
3370                                         struct sockaddr_in6 *sin6;
3371
3372                                         sin6 = (struct sockaddr_in6 *)addr;
3373                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3374                                                 error = EINVAL;
3375                                                 SCTP_TCB_UNLOCK(stcb);
3376                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3377                                                 break;
3378                                         }
3379                                 } else
3380 #endif
3381                                 {
3382                                         error = EAFNOSUPPORT;
3383                                         SCTP_TCB_UNLOCK(stcb);
3384                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3385                                         break;
3386                                 }
3387                         }
3388                         if (stcb != NULL) {
3389                                 if (net) {
3390                                         encaps->sue_port = net->port;
3391                                 } else {
3392                                         encaps->sue_port = stcb->asoc.port;
3393                                 }
3394                                 SCTP_TCB_UNLOCK(stcb);
3395                         } else {
3396                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3397                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3398                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3399                                         SCTP_INP_RLOCK(inp);
3400                                         encaps->sue_port = inp->sctp_ep.port;
3401                                         SCTP_INP_RUNLOCK(inp);
3402                                 } else {
3403                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3404                                         error = EINVAL;
3405                                 }
3406                         }
3407                         if (error == 0) {
3408                                 *optsize = sizeof(struct sctp_udpencaps);
3409                         }
3410                         break;
3411                 }
3412         case SCTP_ECN_SUPPORTED:
3413                 {
3414                         struct sctp_assoc_value *av;
3415
3416                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3417                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3418
3419                         if (stcb) {
3420                                 av->assoc_value = stcb->asoc.ecn_supported;
3421                                 SCTP_TCB_UNLOCK(stcb);
3422                         } else {
3423                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3424                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3425                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3426                                         SCTP_INP_RLOCK(inp);
3427                                         av->assoc_value = inp->ecn_supported;
3428                                         SCTP_INP_RUNLOCK(inp);
3429                                 } else {
3430                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3431                                         error = EINVAL;
3432                                 }
3433                         }
3434                         if (error == 0) {
3435                                 *optsize = sizeof(struct sctp_assoc_value);
3436                         }
3437                         break;
3438                 }
3439         case SCTP_PR_SUPPORTED:
3440                 {
3441                         struct sctp_assoc_value *av;
3442
3443                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3444                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3445
3446                         if (stcb) {
3447                                 av->assoc_value = stcb->asoc.prsctp_supported;
3448                                 SCTP_TCB_UNLOCK(stcb);
3449                         } else {
3450                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3451                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3452                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3453                                         SCTP_INP_RLOCK(inp);
3454                                         av->assoc_value = inp->prsctp_supported;
3455                                         SCTP_INP_RUNLOCK(inp);
3456                                 } else {
3457                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3458                                         error = EINVAL;
3459                                 }
3460                         }
3461                         if (error == 0) {
3462                                 *optsize = sizeof(struct sctp_assoc_value);
3463                         }
3464                         break;
3465                 }
3466         case SCTP_AUTH_SUPPORTED:
3467                 {
3468                         struct sctp_assoc_value *av;
3469
3470                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3471                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3472
3473                         if (stcb) {
3474                                 av->assoc_value = stcb->asoc.auth_supported;
3475                                 SCTP_TCB_UNLOCK(stcb);
3476                         } else {
3477                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3478                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3479                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3480                                         SCTP_INP_RLOCK(inp);
3481                                         av->assoc_value = inp->auth_supported;
3482                                         SCTP_INP_RUNLOCK(inp);
3483                                 } else {
3484                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3485                                         error = EINVAL;
3486                                 }
3487                         }
3488                         if (error == 0) {
3489                                 *optsize = sizeof(struct sctp_assoc_value);
3490                         }
3491                         break;
3492                 }
3493         case SCTP_ASCONF_SUPPORTED:
3494                 {
3495                         struct sctp_assoc_value *av;
3496
3497                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3498                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3499
3500                         if (stcb) {
3501                                 av->assoc_value = stcb->asoc.asconf_supported;
3502                                 SCTP_TCB_UNLOCK(stcb);
3503                         } else {
3504                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3505                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3506                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3507                                         SCTP_INP_RLOCK(inp);
3508                                         av->assoc_value = inp->asconf_supported;
3509                                         SCTP_INP_RUNLOCK(inp);
3510                                 } else {
3511                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3512                                         error = EINVAL;
3513                                 }
3514                         }
3515                         if (error == 0) {
3516                                 *optsize = sizeof(struct sctp_assoc_value);
3517                         }
3518                         break;
3519                 }
3520         case SCTP_RECONFIG_SUPPORTED:
3521                 {
3522                         struct sctp_assoc_value *av;
3523
3524                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3525                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3526
3527                         if (stcb) {
3528                                 av->assoc_value = stcb->asoc.reconfig_supported;
3529                                 SCTP_TCB_UNLOCK(stcb);
3530                         } else {
3531                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3532                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3533                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3534                                         SCTP_INP_RLOCK(inp);
3535                                         av->assoc_value = inp->reconfig_supported;
3536                                         SCTP_INP_RUNLOCK(inp);
3537                                 } else {
3538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3539                                         error = EINVAL;
3540                                 }
3541                         }
3542                         if (error == 0) {
3543                                 *optsize = sizeof(struct sctp_assoc_value);
3544                         }
3545                         break;
3546                 }
3547         case SCTP_NRSACK_SUPPORTED:
3548                 {
3549                         struct sctp_assoc_value *av;
3550
3551                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3552                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3553
3554                         if (stcb) {
3555                                 av->assoc_value = stcb->asoc.nrsack_supported;
3556                                 SCTP_TCB_UNLOCK(stcb);
3557                         } else {
3558                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3559                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3560                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3561                                         SCTP_INP_RLOCK(inp);
3562                                         av->assoc_value = inp->nrsack_supported;
3563                                         SCTP_INP_RUNLOCK(inp);
3564                                 } else {
3565                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3566                                         error = EINVAL;
3567                                 }
3568                         }
3569                         if (error == 0) {
3570                                 *optsize = sizeof(struct sctp_assoc_value);
3571                         }
3572                         break;
3573                 }
3574         case SCTP_PKTDROP_SUPPORTED:
3575                 {
3576                         struct sctp_assoc_value *av;
3577
3578                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3579                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3580
3581                         if (stcb) {
3582                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3583                                 SCTP_TCB_UNLOCK(stcb);
3584                         } else {
3585                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3586                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3587                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3588                                         SCTP_INP_RLOCK(inp);
3589                                         av->assoc_value = inp->pktdrop_supported;
3590                                         SCTP_INP_RUNLOCK(inp);
3591                                 } else {
3592                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3593                                         error = EINVAL;
3594                                 }
3595                         }
3596                         if (error == 0) {
3597                                 *optsize = sizeof(struct sctp_assoc_value);
3598                         }
3599                         break;
3600                 }
3601         case SCTP_ENABLE_STREAM_RESET:
3602                 {
3603                         struct sctp_assoc_value *av;
3604
3605                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3606                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3607
3608                         if (stcb) {
3609                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3610                                 SCTP_TCB_UNLOCK(stcb);
3611                         } else {
3612                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3613                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3614                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3615                                         SCTP_INP_RLOCK(inp);
3616                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3617                                         SCTP_INP_RUNLOCK(inp);
3618                                 } else {
3619                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3620                                         error = EINVAL;
3621                                 }
3622                         }
3623                         if (error == 0) {
3624                                 *optsize = sizeof(struct sctp_assoc_value);
3625                         }
3626                         break;
3627                 }
3628         case SCTP_PR_STREAM_STATUS:
3629                 {
3630                         struct sctp_prstatus *sprstat;
3631                         uint16_t sid;
3632                         uint16_t policy;
3633
3634                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3635                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3636
3637                         sid = sprstat->sprstat_sid;
3638                         policy = sprstat->sprstat_policy;
3639 #if defined(SCTP_DETAILED_STR_STATS)
3640                         if ((stcb != NULL) &&
3641                             (sid < stcb->asoc.streamoutcnt) &&
3642                             (policy != SCTP_PR_SCTP_NONE) &&
3643                             ((policy <= SCTP_PR_SCTP_MAX) ||
3644                             (policy == SCTP_PR_SCTP_ALL))) {
3645                                 if (policy == SCTP_PR_SCTP_ALL) {
3646                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3647                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3648                                 } else {
3649                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3650                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3651                                 }
3652 #else
3653                         if ((stcb != NULL) &&
3654                             (sid < stcb->asoc.streamoutcnt) &&
3655                             (policy == SCTP_PR_SCTP_ALL)) {
3656                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3657                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3658 #endif
3659                                 SCTP_TCB_UNLOCK(stcb);
3660                                 *optsize = sizeof(struct sctp_prstatus);
3661                         } else {
3662                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3663                                 error = EINVAL;
3664                         }
3665                         break;
3666                 }
3667         case SCTP_PR_ASSOC_STATUS:
3668                 {
3669                         struct sctp_prstatus *sprstat;
3670                         uint16_t policy;
3671
3672                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3673                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3674
3675                         policy = sprstat->sprstat_policy;
3676                         if ((stcb != NULL) &&
3677                             (policy != SCTP_PR_SCTP_NONE) &&
3678                             ((policy <= SCTP_PR_SCTP_MAX) ||
3679                             (policy == SCTP_PR_SCTP_ALL))) {
3680                                 if (policy == SCTP_PR_SCTP_ALL) {
3681                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3682                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3683                                 } else {
3684                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3685                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3686                                 }
3687                                 SCTP_TCB_UNLOCK(stcb);
3688                                 *optsize = sizeof(struct sctp_prstatus);
3689                         } else {
3690                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3691                                 error = EINVAL;
3692                         }
3693                         break;
3694                 }
3695         case SCTP_MAX_CWND:
3696                 {
3697                         struct sctp_assoc_value *av;
3698
3699                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3700                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3701
3702                         if (stcb) {
3703                                 av->assoc_value = stcb->asoc.max_cwnd;
3704                                 SCTP_TCB_UNLOCK(stcb);
3705                         } else {
3706                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3707                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3708                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3709                                         SCTP_INP_RLOCK(inp);
3710                                         av->assoc_value = inp->max_cwnd;
3711                                         SCTP_INP_RUNLOCK(inp);
3712                                 } else {
3713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3714                                         error = EINVAL;
3715                                 }
3716                         }
3717                         if (error == 0) {
3718                                 *optsize = sizeof(struct sctp_assoc_value);
3719                         }
3720                         break;
3721                 }
3722         default:
3723                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3724                 error = ENOPROTOOPT;
3725                 break;
3726         }                       /* end switch (sopt->sopt_name) */
3727         if (error) {
3728                 *optsize = 0;
3729         }
3730         return (error);
3731 }
3732
3733 static int
3734 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3735     void *p)
3736 {
3737         int error, set_opt;
3738         uint32_t *mopt;
3739         struct sctp_tcb *stcb = NULL;
3740         struct sctp_inpcb *inp = NULL;
3741         uint32_t vrf_id;
3742
3743         if (optval == NULL) {
3744                 SCTP_PRINTF("optval is NULL\n");
3745                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3746                 return (EINVAL);
3747         }
3748         inp = (struct sctp_inpcb *)so->so_pcb;
3749         if (inp == NULL) {
3750                 SCTP_PRINTF("inp is NULL?\n");
3751                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3752                 return (EINVAL);
3753         }
3754         vrf_id = inp->def_vrf_id;
3755
3756         error = 0;
3757         switch (optname) {
3758         case SCTP_NODELAY:
3759         case SCTP_AUTOCLOSE:
3760         case SCTP_AUTO_ASCONF:
3761         case SCTP_EXPLICIT_EOR:
3762         case SCTP_DISABLE_FRAGMENTS:
3763         case SCTP_USE_EXT_RCVINFO:
3764         case SCTP_I_WANT_MAPPED_V4_ADDR:
3765                 /* copy in the option value */
3766                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3767                 set_opt = 0;
3768                 if (error)
3769                         break;
3770                 switch (optname) {
3771                 case SCTP_DISABLE_FRAGMENTS:
3772                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3773                         break;
3774                 case SCTP_AUTO_ASCONF:
3775                         /*
3776                          * NOTE: we don't really support this flag
3777                          */
3778                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3779                                 /* only valid for bound all sockets */
3780                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3781                                     (*mopt != 0)) {
3782                                         /* forbidden by admin */
3783                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3784                                         return (EPERM);
3785                                 }
3786                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3787                         } else {
3788                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3789                                 return (EINVAL);
3790                         }
3791                         break;
3792                 case SCTP_EXPLICIT_EOR:
3793                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3794                         break;
3795                 case SCTP_USE_EXT_RCVINFO:
3796                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3797                         break;
3798                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3799                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3800                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3801                         } else {
3802                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3803                                 return (EINVAL);
3804                         }
3805                         break;
3806                 case SCTP_NODELAY:
3807                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3808                         break;
3809                 case SCTP_AUTOCLOSE:
3810                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3811                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3812                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3813                                 return (EINVAL);
3814                         }
3815                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3816                         /*
3817                          * The value is in ticks. Note this does not effect
3818                          * old associations, only new ones.
3819                          */
3820                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3821                         break;
3822                 }
3823                 SCTP_INP_WLOCK(inp);
3824                 if (*mopt != 0) {
3825                         sctp_feature_on(inp, set_opt);
3826                 } else {
3827                         sctp_feature_off(inp, set_opt);
3828                 }
3829                 SCTP_INP_WUNLOCK(inp);
3830                 break;
3831         case SCTP_REUSE_PORT:
3832                 {
3833                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3834                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3835                                 /* Can't set it after we are bound */
3836                                 error = EINVAL;
3837                                 break;
3838                         }
3839                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3840                                 /* Can't do this for a 1-m socket */
3841                                 error = EINVAL;
3842                                 break;
3843                         }
3844                         if (optval)
3845                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3846                         else
3847                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3848                         break;
3849                 }
3850         case SCTP_PARTIAL_DELIVERY_POINT:
3851                 {
3852                         uint32_t *value;
3853
3854                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3855                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3856                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3857                                 error = EINVAL;
3858                                 break;
3859                         }
3860                         inp->partial_delivery_point = *value;
3861                         break;
3862                 }
3863         case SCTP_FRAGMENT_INTERLEAVE:
3864                 /* not yet until we re-write sctp_recvmsg() */
3865                 {
3866                         uint32_t *level;
3867
3868                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3869                         if (*level == SCTP_FRAG_LEVEL_2) {
3870                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3871                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3872                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3873                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3874                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3875                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3876                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3877                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3878
3879                         } else {
3880                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3881                                 error = EINVAL;
3882                         }
3883                         break;
3884                 }
3885         case SCTP_CMT_ON_OFF:
3886                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3887                         struct sctp_assoc_value *av;
3888
3889                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3890                         if (av->assoc_value > SCTP_CMT_MAX) {
3891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3892                                 error = EINVAL;
3893                                 break;
3894                         }
3895                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3896                         if (stcb) {
3897                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3898                                 SCTP_TCB_UNLOCK(stcb);
3899                         } else {
3900                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3901                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3902                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3903                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3904                                         SCTP_INP_WLOCK(inp);
3905                                         inp->sctp_cmt_on_off = av->assoc_value;
3906                                         SCTP_INP_WUNLOCK(inp);
3907                                 }
3908                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3909                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3910                                         SCTP_INP_RLOCK(inp);
3911                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3912                                                 SCTP_TCB_LOCK(stcb);
3913                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3914                                                 SCTP_TCB_UNLOCK(stcb);
3915                                         }
3916                                         SCTP_INP_RUNLOCK(inp);
3917                                 }
3918                         }
3919                 } else {
3920                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3921                         error = ENOPROTOOPT;
3922                 }
3923                 break;
3924         case SCTP_PLUGGABLE_CC:
3925                 {
3926                         struct sctp_assoc_value *av;
3927                         struct sctp_nets *net;
3928
3929                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3930                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3931                             (av->assoc_value != SCTP_CC_HSTCP) &&
3932                             (av->assoc_value != SCTP_CC_HTCP) &&
3933                             (av->assoc_value != SCTP_CC_RTCC)) {
3934                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3935                                 error = EINVAL;
3936                                 break;
3937                         }
3938                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3939                         if (stcb) {
3940                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3941                                 stcb->asoc.congestion_control_module = av->assoc_value;
3942                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3943                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3944                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3945                                         }
3946                                 }
3947                                 SCTP_TCB_UNLOCK(stcb);
3948                         } else {
3949                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3950                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3951                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3952                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3953                                         SCTP_INP_WLOCK(inp);
3954                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3955                                         SCTP_INP_WUNLOCK(inp);
3956                                 }
3957                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3958                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3959                                         SCTP_INP_RLOCK(inp);
3960                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3961                                                 SCTP_TCB_LOCK(stcb);
3962                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3963                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3964                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3965                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3966                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3967                                                         }
3968                                                 }
3969                                                 SCTP_TCB_UNLOCK(stcb);
3970                                         }
3971                                         SCTP_INP_RUNLOCK(inp);
3972                                 }
3973                         }
3974                         break;
3975                 }
3976         case SCTP_CC_OPTION:
3977                 {
3978                         struct sctp_cc_option *cc_opt;
3979
3980                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3981                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3982                         if (stcb == NULL) {
3983                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3984                                         SCTP_INP_RLOCK(inp);
3985                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3986                                                 SCTP_TCB_LOCK(stcb);
3987                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3988                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3989                                                 }
3990                                                 SCTP_TCB_UNLOCK(stcb);
3991                                         }
3992                                         SCTP_INP_RUNLOCK(inp);
3993                                 } else {
3994                                         error = EINVAL;
3995                                 }
3996                         } else {
3997                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3998                                         error = ENOTSUP;
3999                                 } else {
4000                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4001                                             cc_opt);
4002                                 }
4003                                 SCTP_TCB_UNLOCK(stcb);
4004                         }
4005                         break;
4006                 }
4007         case SCTP_PLUGGABLE_SS:
4008                 {
4009                         struct sctp_assoc_value *av;
4010
4011                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4012                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4013                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4014                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4015                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4016                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4017                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4018                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4019                                 error = EINVAL;
4020                                 break;
4021                         }
4022                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4023                         if (stcb) {
4024                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4025                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4026                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4027                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4028                                 SCTP_TCB_UNLOCK(stcb);
4029                         } else {
4030                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4031                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4032                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4033                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4034                                         SCTP_INP_WLOCK(inp);
4035                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4036                                         SCTP_INP_WUNLOCK(inp);
4037                                 }
4038                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4039                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4040                                         SCTP_INP_RLOCK(inp);
4041                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4042                                                 SCTP_TCB_LOCK(stcb);
4043                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4044                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4045                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4046                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4047                                                 SCTP_TCB_UNLOCK(stcb);
4048                                         }
4049                                         SCTP_INP_RUNLOCK(inp);
4050                                 }
4051                         }
4052                         break;
4053                 }
4054         case SCTP_SS_VALUE:
4055                 {
4056                         struct sctp_stream_value *av;
4057
4058                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4059                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4060                         if (stcb) {
4061                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4062                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4063                                     av->stream_value) < 0)) {
4064                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4065                                         error = EINVAL;
4066                                 }
4067                                 SCTP_TCB_UNLOCK(stcb);
4068                         } else {
4069                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4070                                         SCTP_INP_RLOCK(inp);
4071                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4072                                                 SCTP_TCB_LOCK(stcb);
4073                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4074                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4075                                                             &stcb->asoc,
4076                                                             &stcb->asoc.strmout[av->stream_id],
4077                                                             av->stream_value);
4078                                                 }
4079                                                 SCTP_TCB_UNLOCK(stcb);
4080                                         }
4081                                         SCTP_INP_RUNLOCK(inp);
4082                                 } else {
4083                                         /*
4084                                          * Can't set stream value without
4085                                          * association
4086                                          */
4087                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4088                                         error = EINVAL;
4089                                 }
4090                         }
4091                         break;
4092                 }
4093         case SCTP_CLR_STAT_LOG:
4094                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4095                 error = EOPNOTSUPP;
4096                 break;
4097         case SCTP_CONTEXT:
4098                 {
4099                         struct sctp_assoc_value *av;
4100
4101                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4102                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4103
4104                         if (stcb) {
4105                                 stcb->asoc.context = av->assoc_value;
4106                                 SCTP_TCB_UNLOCK(stcb);
4107                         } else {
4108                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4109                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4110                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4111                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4112                                         SCTP_INP_WLOCK(inp);
4113                                         inp->sctp_context = av->assoc_value;
4114                                         SCTP_INP_WUNLOCK(inp);
4115                                 }
4116                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4117                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4118                                         SCTP_INP_RLOCK(inp);
4119                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4120                                                 SCTP_TCB_LOCK(stcb);
4121                                                 stcb->asoc.context = av->assoc_value;
4122                                                 SCTP_TCB_UNLOCK(stcb);
4123                                         }
4124                                         SCTP_INP_RUNLOCK(inp);
4125                                 }
4126                         }
4127                         break;
4128                 }
4129         case SCTP_VRF_ID:
4130                 {
4131                         uint32_t *default_vrfid;
4132
4133                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4134                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4135                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4136                                 error = EINVAL;
4137                                 break;
4138                         }
4139                         inp->def_vrf_id = *default_vrfid;
4140                         break;
4141                 }
4142         case SCTP_DEL_VRF_ID:
4143                 {
4144                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4145                         error = EOPNOTSUPP;
4146                         break;
4147                 }
4148         case SCTP_ADD_VRF_ID:
4149                 {
4150                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4151                         error = EOPNOTSUPP;
4152                         break;
4153                 }
4154         case SCTP_DELAYED_SACK:
4155                 {
4156                         struct sctp_sack_info *sack;
4157
4158                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4159                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4160                         if (sack->sack_delay) {
4161                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4162                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4163                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4164                                         sack->sack_delay = TICKS_TO_MSEC(1);
4165                                 }
4166                         }
4167                         if (stcb) {
4168                                 if (sack->sack_delay) {
4169                                         stcb->asoc.delayed_ack = sack->sack_delay;
4170                                 }
4171                                 if (sack->sack_freq) {
4172                                         stcb->asoc.sack_freq = sack->sack_freq;
4173                                 }
4174                                 SCTP_TCB_UNLOCK(stcb);
4175                         } else {
4176                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4177                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4178                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4179                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4180                                         SCTP_INP_WLOCK(inp);
4181                                         if (sack->sack_delay) {
4182                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4183                                         }
4184                                         if (sack->sack_freq) {
4185                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4186                                         }
4187                                         SCTP_INP_WUNLOCK(inp);
4188                                 }
4189                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4190                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4191                                         SCTP_INP_RLOCK(inp);
4192                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4193                                                 SCTP_TCB_LOCK(stcb);
4194                                                 if (sack->sack_delay) {
4195                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4196                                                 }
4197                                                 if (sack->sack_freq) {
4198                                                         stcb->asoc.sack_freq = sack->sack_freq;
4199                                                 }
4200                                                 SCTP_TCB_UNLOCK(stcb);
4201                                         }
4202                                         SCTP_INP_RUNLOCK(inp);
4203                                 }
4204                         }
4205                         break;
4206                 }
4207         case SCTP_AUTH_CHUNK:
4208                 {
4209                         struct sctp_authchunk *sauth;
4210
4211                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4212
4213                         SCTP_INP_WLOCK(inp);
4214                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4215                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4216                                 error = EINVAL;
4217                         }
4218                         SCTP_INP_WUNLOCK(inp);
4219                         break;
4220                 }
4221         case SCTP_AUTH_KEY:
4222                 {
4223                         struct sctp_authkey *sca;
4224                         struct sctp_keyhead *shared_keys;
4225                         sctp_sharedkey_t *shared_key;
4226                         sctp_key_t *key = NULL;
4227                         size_t size;
4228
4229                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4230                         if (sca->sca_keylength == 0) {
4231                                 size = optsize - sizeof(struct sctp_authkey);
4232                         } else {
4233                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4234                                         size = sca->sca_keylength;
4235                                 } else {
4236                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4237                                         error = EINVAL;
4238                                         break;
4239                                 }
4240                         }
4241                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4242
4243                         if (stcb) {
4244                                 shared_keys = &stcb->asoc.shared_keys;
4245                                 /* clear the cached keys for this key id */
4246                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4247                                 /*
4248                                  * create the new shared key and
4249                                  * insert/replace it
4250                                  */
4251                                 if (size > 0) {
4252                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4253                                         if (key == NULL) {
4254                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4255                                                 error = ENOMEM;
4256                                                 SCTP_TCB_UNLOCK(stcb);
4257                                                 break;
4258                                         }
4259                                 }
4260                                 shared_key = sctp_alloc_sharedkey();
4261                                 if (shared_key == NULL) {
4262                                         sctp_free_key(key);
4263                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4264                                         error = ENOMEM;
4265                                         SCTP_TCB_UNLOCK(stcb);
4266                                         break;
4267                                 }
4268                                 shared_key->key = key;
4269                                 shared_key->keyid = sca->sca_keynumber;
4270                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4271                                 SCTP_TCB_UNLOCK(stcb);
4272                         } else {
4273                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4274                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4275                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4276                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4277                                         SCTP_INP_WLOCK(inp);
4278                                         shared_keys = &inp->sctp_ep.shared_keys;
4279                                         /*
4280                                          * clear the cached keys on all
4281                                          * assocs for this key id
4282                                          */
4283                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4284                                         /*
4285                                          * create the new shared key and
4286                                          * insert/replace it
4287                                          */
4288                                         if (size > 0) {
4289                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4290                                                 if (key == NULL) {
4291                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4292                                                         error = ENOMEM;
4293                                                         SCTP_INP_WUNLOCK(inp);
4294                                                         break;
4295                                                 }
4296                                         }
4297                                         shared_key = sctp_alloc_sharedkey();
4298                                         if (shared_key == NULL) {
4299                                                 sctp_free_key(key);
4300                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4301                                                 error = ENOMEM;
4302                                                 SCTP_INP_WUNLOCK(inp);
4303                                                 break;
4304                                         }
4305                                         shared_key->key = key;
4306                                         shared_key->keyid = sca->sca_keynumber;
4307                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4308                                         SCTP_INP_WUNLOCK(inp);
4309                                 }
4310                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4311                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4312                                         SCTP_INP_RLOCK(inp);
4313                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4314                                                 SCTP_TCB_LOCK(stcb);
4315                                                 shared_keys = &stcb->asoc.shared_keys;
4316                                                 /*
4317                                                  * clear the cached keys for
4318                                                  * this key id
4319                                                  */
4320                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4321                                                 /*
4322                                                  * create the new shared key
4323                                                  * and insert/replace it
4324                                                  */
4325                                                 if (size > 0) {
4326                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4327                                                         if (key == NULL) {
4328                                                                 SCTP_TCB_UNLOCK(stcb);
4329                                                                 continue;
4330                                                         }
4331                                                 }
4332                                                 shared_key = sctp_alloc_sharedkey();
4333                                                 if (shared_key == NULL) {
4334                                                         sctp_free_key(key);
4335                                                         SCTP_TCB_UNLOCK(stcb);
4336                                                         continue;
4337                                                 }
4338                                                 shared_key->key = key;
4339                                                 shared_key->keyid = sca->sca_keynumber;
4340                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4341                                                 SCTP_TCB_UNLOCK(stcb);
4342                                         }
4343                                         SCTP_INP_RUNLOCK(inp);
4344                                 }
4345                         }
4346                         break;
4347                 }
4348         case SCTP_HMAC_IDENT:
4349                 {
4350                         struct sctp_hmacalgo *shmac;
4351                         sctp_hmaclist_t *hmaclist;
4352                         uint16_t hmacid;
4353                         uint32_t i;
4354
4355                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4356                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4357                             (shmac->shmac_number_of_idents > 0xffff)) {
4358                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4359                                 error = EINVAL;
4360                                 break;
4361                         }
4362                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4363                         if (hmaclist == NULL) {
4364                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4365                                 error = ENOMEM;
4366                                 break;
4367                         }
4368                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4369                                 hmacid = shmac->shmac_idents[i];
4370                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4371                                          /* invalid HMACs were found */ ;
4372                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4373                                         error = EINVAL;
4374                                         sctp_free_hmaclist(hmaclist);
4375                                         goto sctp_set_hmac_done;
4376                                 }
4377                         }
4378                         for (i = 0; i < hmaclist->num_algo; i++) {
4379                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4380                                         /* already in list */
4381                                         break;
4382                                 }
4383                         }
4384                         if (i == hmaclist->num_algo) {
4385                                 /* not found in list */
4386                                 sctp_free_hmaclist(hmaclist);
4387                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4388                                 error = EINVAL;
4389                                 break;
4390                         }
4391                         /* set it on the endpoint */
4392                         SCTP_INP_WLOCK(inp);
4393                         if (inp->sctp_ep.local_hmacs)
4394                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4395                         inp->sctp_ep.local_hmacs = hmaclist;
4396                         SCTP_INP_WUNLOCK(inp);
4397         sctp_set_hmac_done:
4398                         break;
4399                 }
4400         case SCTP_AUTH_ACTIVE_KEY:
4401                 {
4402                         struct sctp_authkeyid *scact;
4403
4404                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4405                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4406
4407                         /* set the active key on the right place */
4408                         if (stcb) {
4409                                 /* set the active key on the assoc */
4410                                 if (sctp_auth_setactivekey(stcb,
4411                                     scact->scact_keynumber)) {
4412                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4413                                             SCTP_FROM_SCTP_USRREQ,
4414                                             EINVAL);
4415                                         error = EINVAL;
4416                                 }
4417                                 SCTP_TCB_UNLOCK(stcb);
4418                         } else {
4419                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4420                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4421                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4422                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4423                                         SCTP_INP_WLOCK(inp);
4424                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4425                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4426                                                 error = EINVAL;
4427                                         }
4428                                         SCTP_INP_WUNLOCK(inp);
4429                                 }
4430                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4431                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4432                                         SCTP_INP_RLOCK(inp);
4433                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4434                                                 SCTP_TCB_LOCK(stcb);
4435                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4436                                                 SCTP_TCB_UNLOCK(stcb);
4437                                         }
4438                                         SCTP_INP_RUNLOCK(inp);
4439                                 }
4440                         }
4441                         break;
4442                 }
4443         case SCTP_AUTH_DELETE_KEY:
4444                 {
4445                         struct sctp_authkeyid *scdel;
4446
4447                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4448                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4449
4450                         /* delete the key from the right place */
4451                         if (stcb) {
4452                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4453                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4454                                         error = EINVAL;
4455                                 }
4456                                 SCTP_TCB_UNLOCK(stcb);
4457                         } else {
4458                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4459                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4460                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4461                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4462                                         SCTP_INP_WLOCK(inp);
4463                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4464                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4465                                                 error = EINVAL;
4466                                         }
4467                                         SCTP_INP_WUNLOCK(inp);
4468                                 }
4469                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4470                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4471                                         SCTP_INP_RLOCK(inp);
4472                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4473                                                 SCTP_TCB_LOCK(stcb);
4474                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4475                                                 SCTP_TCB_UNLOCK(stcb);
4476                                         }
4477                                         SCTP_INP_RUNLOCK(inp);
4478                                 }
4479                         }
4480                         break;
4481                 }
4482         case SCTP_AUTH_DEACTIVATE_KEY:
4483                 {
4484                         struct sctp_authkeyid *keyid;
4485
4486                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4487                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4488
4489                         /* deactivate the key from the right place */
4490                         if (stcb) {
4491                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4492                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4493                                         error = EINVAL;
4494                                 }
4495                                 SCTP_TCB_UNLOCK(stcb);
4496                         } else {
4497                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4498                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4499                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4500                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4501                                         SCTP_INP_WLOCK(inp);
4502                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4503                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4504                                                 error = EINVAL;
4505                                         }
4506                                         SCTP_INP_WUNLOCK(inp);
4507                                 }
4508                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4509                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4510                                         SCTP_INP_RLOCK(inp);
4511                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4512                                                 SCTP_TCB_LOCK(stcb);
4513                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4514                                                 SCTP_TCB_UNLOCK(stcb);
4515                                         }
4516                                         SCTP_INP_RUNLOCK(inp);
4517                                 }
4518                         }
4519                         break;
4520                 }
4521         case SCTP_ENABLE_STREAM_RESET:
4522                 {
4523                         struct sctp_assoc_value *av;
4524
4525                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4526                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4527                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4528                                 error = EINVAL;
4529                                 break;
4530                         }
4531                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4532                         if (stcb) {
4533                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4534                                 SCTP_TCB_UNLOCK(stcb);
4535                         } else {
4536                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4537                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4538                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4539                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4540                                         SCTP_INP_WLOCK(inp);
4541                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4542                                         SCTP_INP_WUNLOCK(inp);
4543                                 }
4544                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4545                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4546                                         SCTP_INP_RLOCK(inp);
4547                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4548                                                 SCTP_TCB_LOCK(stcb);
4549                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4550                                                 SCTP_TCB_UNLOCK(stcb);
4551                                         }
4552                                         SCTP_INP_RUNLOCK(inp);
4553                                 }
4554                         }
4555                         break;
4556                 }
4557         case SCTP_RESET_STREAMS:
4558                 {
4559                         struct sctp_reset_streams *strrst;
4560                         int i, send_out = 0;
4561                         int send_in = 0;
4562
4563                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4564                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4565                         if (stcb == NULL) {
4566                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4567                                 error = ENOENT;
4568                                 break;
4569                         }
4570                         if (stcb->asoc.reconfig_supported == 0) {
4571                                 /*
4572                                  * Peer does not support the chunk type.
4573                                  */
4574                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4575                                 error = EOPNOTSUPP;
4576                                 SCTP_TCB_UNLOCK(stcb);
4577                                 break;
4578                         }
4579                         if (sizeof(struct sctp_reset_streams) +
4580                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4581                                 error = EINVAL;
4582                                 SCTP_TCB_UNLOCK(stcb);
4583                                 break;
4584                         }
4585                         if (stcb->asoc.stream_reset_outstanding) {
4586                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4587                                 error = EALREADY;
4588                                 SCTP_TCB_UNLOCK(stcb);
4589                                 break;
4590                         }
4591                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4592                                 send_in = 1;
4593                         }
4594                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4595                                 send_out = 1;
4596                         }
4597                         if ((send_in == 0) && (send_out == 0)) {
4598                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4599                                 error = EINVAL;
4600                                 SCTP_TCB_UNLOCK(stcb);
4601                                 break;
4602                         }
4603                         for (i = 0; i < strrst->srs_number_streams; i++) {
4604                                 if ((send_in) &&
4605                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4606                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4607                                         error = EINVAL;
4608                                         break;
4609                                 }
4610                                 if ((send_out) &&
4611                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4612                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4613                                         error = EINVAL;
4614                                         break;
4615                                 }
4616                         }
4617                         if (error) {
4618                                 SCTP_TCB_UNLOCK(stcb);
4619                                 break;
4620                         }
4621                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4622                             strrst->srs_stream_list,
4623                             send_out, send_in, 0, 0, 0, 0, 0);
4624
4625                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4626                         SCTP_TCB_UNLOCK(stcb);
4627                         break;
4628                 }
4629         case SCTP_ADD_STREAMS:
4630                 {
4631                         struct sctp_add_streams *stradd;
4632                         uint8_t addstream = 0;
4633                         uint16_t add_o_strmcnt = 0;
4634                         uint16_t add_i_strmcnt = 0;
4635
4636                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4637                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4638                         if (stcb == NULL) {
4639                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4640                                 error = ENOENT;
4641                                 break;
4642                         }
4643                         if (stcb->asoc.reconfig_supported == 0) {
4644                                 /*
4645                                  * Peer does not support the chunk type.
4646                                  */
4647                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4648                                 error = EOPNOTSUPP;
4649                                 SCTP_TCB_UNLOCK(stcb);
4650                                 break;
4651                         }
4652                         if (stcb->asoc.stream_reset_outstanding) {
4653                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4654                                 error = EALREADY;
4655                                 SCTP_TCB_UNLOCK(stcb);
4656                                 break;
4657                         }
4658                         if ((stradd->sas_outstrms == 0) &&
4659                             (stradd->sas_instrms == 0)) {
4660                                 error = EINVAL;
4661                                 goto skip_stuff;
4662                         }
4663                         if (stradd->sas_outstrms) {
4664                                 addstream = 1;
4665                                 /* We allocate here */
4666                                 add_o_strmcnt = stradd->sas_outstrms;
4667                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4668                                         /* You can't have more than 64k */
4669                                         error = EINVAL;
4670                                         goto skip_stuff;
4671                                 }
4672                         }
4673                         if (stradd->sas_instrms) {
4674                                 int cnt;
4675
4676                                 addstream |= 2;
4677                                 /*
4678                                  * We allocate inside
4679                                  * sctp_send_str_reset_req()
4680                                  */
4681                                 add_i_strmcnt = stradd->sas_instrms;
4682                                 cnt = add_i_strmcnt;
4683                                 cnt += stcb->asoc.streamincnt;
4684                                 if (cnt > 0x0000ffff) {
4685                                         /* You can't have more than 64k */
4686                                         error = EINVAL;
4687                                         goto skip_stuff;
4688                                 }
4689                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4690                                         /* More than you are allowed */
4691                                         error = EINVAL;
4692                                         goto skip_stuff;
4693                                 }
4694                         }
4695                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4696                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4697         skip_stuff:
4698                         SCTP_TCB_UNLOCK(stcb);
4699                         break;
4700                 }
4701         case SCTP_RESET_ASSOC:
4702                 {
4703                         uint32_t *value;
4704
4705                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4706                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4707                         if (stcb == NULL) {
4708                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4709                                 error = ENOENT;
4710                                 break;
4711                         }
4712                         if (stcb->asoc.reconfig_supported == 0) {
4713                                 /*
4714                                  * Peer does not support the chunk type.
4715                                  */
4716                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4717                                 error = EOPNOTSUPP;
4718                                 SCTP_TCB_UNLOCK(stcb);
4719                                 break;
4720                         }
4721                         if (stcb->asoc.stream_reset_outstanding) {
4722                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4723                                 error = EALREADY;
4724                                 SCTP_TCB_UNLOCK(stcb);
4725                                 break;
4726                         }
4727                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4728                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4729                         SCTP_TCB_UNLOCK(stcb);
4730                         break;
4731                 }
4732         case SCTP_CONNECT_X:
4733                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4734                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4735                         error = EINVAL;
4736                         break;
4737                 }
4738                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4739                 break;
4740         case SCTP_CONNECT_X_DELAYED:
4741                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4742                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4743                         error = EINVAL;
4744                         break;
4745                 }
4746                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4747                 break;
4748         case SCTP_CONNECT_X_COMPLETE:
4749                 {
4750                         struct sockaddr *sa;
4751
4752                         /* FIXME MT: check correct? */
4753                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4754
4755                         /* find tcb */
4756                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4757                                 SCTP_INP_RLOCK(inp);
4758                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4759                                 if (stcb) {
4760                                         SCTP_TCB_LOCK(stcb);
4761                                 }
4762                                 SCTP_INP_RUNLOCK(inp);
4763                         } else {
4764                                 /*
4765                                  * We increment here since
4766                                  * sctp_findassociation_ep_addr() wil do a
4767                                  * decrement if it finds the stcb as long as
4768                                  * the locked tcb (last argument) is NOT a
4769                                  * TCB.. aka NULL.
4770                                  */
4771                                 SCTP_INP_INCR_REF(inp);
4772                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4773                                 if (stcb == NULL) {
4774                                         SCTP_INP_DECR_REF(inp);
4775                                 }
4776                         }
4777
4778                         if (stcb == NULL) {
4779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4780                                 error = ENOENT;
4781                                 break;
4782                         }
4783                         if (stcb->asoc.delayed_connection == 1) {
4784                                 stcb->asoc.delayed_connection = 0;
4785                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4786                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4787                                     stcb->asoc.primary_destination,
4788                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4789                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4790                         } else {
4791                                 /*
4792                                  * already expired or did not use delayed
4793                                  * connectx
4794                                  */
4795                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4796                                 error = EALREADY;
4797                         }
4798                         SCTP_TCB_UNLOCK(stcb);
4799                         break;
4800                 }
4801         case SCTP_MAX_BURST:
4802                 {
4803                         struct sctp_assoc_value *av;
4804
4805                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4806                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4807
4808                         if (stcb) {
4809                                 stcb->asoc.max_burst = av->assoc_value;
4810                                 SCTP_TCB_UNLOCK(stcb);
4811                         } else {
4812                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4813                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4814                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4815                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4816                                         SCTP_INP_WLOCK(inp);
4817                                         inp->sctp_ep.max_burst = av->assoc_value;
4818                                         SCTP_INP_WUNLOCK(inp);
4819                                 }
4820                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4821                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4822                                         SCTP_INP_RLOCK(inp);
4823                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4824                                                 SCTP_TCB_LOCK(stcb);
4825                                                 stcb->asoc.max_burst = av->assoc_value;
4826                                                 SCTP_TCB_UNLOCK(stcb);
4827                                         }
4828                                         SCTP_INP_RUNLOCK(inp);
4829                                 }
4830                         }
4831                         break;
4832                 }
4833         case SCTP_MAXSEG:
4834                 {
4835                         struct sctp_assoc_value *av;
4836                         int ovh;
4837
4838                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4839                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4840
4841                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4842                                 ovh = SCTP_MED_OVERHEAD;
4843                         } else {
4844                                 ovh = SCTP_MED_V4_OVERHEAD;
4845                         }
4846                         if (stcb) {
4847                                 if (av->assoc_value) {
4848                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4849                                 } else {
4850                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4851                                 }
4852                                 SCTP_TCB_UNLOCK(stcb);
4853                         } else {
4854                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4855                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4856                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4857                                         SCTP_INP_WLOCK(inp);
4858                                         /*
4859                                          * FIXME MT: I think this is not in
4860                                          * tune with the API ID
4861                                          */
4862                                         if (av->assoc_value) {
4863                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4864                                         } else {
4865                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4866                                         }
4867                                         SCTP_INP_WUNLOCK(inp);
4868                                 } else {
4869                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4870                                         error = EINVAL;
4871                                 }
4872                         }
4873                         break;
4874                 }
4875         case SCTP_EVENTS:
4876                 {
4877                         struct sctp_event_subscribe *events;
4878
4879                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4880
4881                         SCTP_INP_WLOCK(inp);
4882                         if (events->sctp_data_io_event) {
4883                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4884                         } else {
4885                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4886                         }
4887
4888                         if (events->sctp_association_event) {
4889                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4890                         } else {
4891                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4892                         }
4893
4894                         if (events->sctp_address_event) {
4895                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4896                         } else {
4897                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4898                         }
4899
4900                         if (events->sctp_send_failure_event) {
4901                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4902                         } else {
4903                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4904                         }
4905
4906                         if (events->sctp_peer_error_event) {
4907                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4908                         } else {
4909                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4910                         }
4911
4912                         if (events->sctp_shutdown_event) {
4913                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4914                         } else {
4915                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4916                         }
4917
4918                         if (events->sctp_partial_delivery_event) {
4919                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4920                         } else {
4921                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4922                         }
4923
4924                         if (events->sctp_adaptation_layer_event) {
4925                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4926                         } else {
4927                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4928                         }
4929
4930                         if (events->sctp_authentication_event) {
4931                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4932                         } else {
4933                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4934                         }
4935
4936                         if (events->sctp_sender_dry_event) {
4937                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4938                         } else {
4939                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4940                         }
4941
4942                         if (events->sctp_stream_reset_event) {
4943                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4944                         } else {
4945                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4946                         }
4947                         SCTP_INP_WUNLOCK(inp);
4948
4949                         SCTP_INP_RLOCK(inp);
4950                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4951                                 SCTP_TCB_LOCK(stcb);
4952                                 if (events->sctp_association_event) {
4953                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4954                                 } else {
4955                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4956                                 }
4957                                 if (events->sctp_address_event) {
4958                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4959                                 } else {
4960                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4961                                 }
4962                                 if (events->sctp_send_failure_event) {
4963                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4964                                 } else {
4965                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4966                                 }
4967                                 if (events->sctp_peer_error_event) {
4968                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4969                                 } else {
4970                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4971                                 }
4972                                 if (events->sctp_shutdown_event) {
4973                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4974                                 } else {
4975                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4976                                 }
4977                                 if (events->sctp_partial_delivery_event) {
4978                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4979                                 } else {
4980                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4981                                 }
4982                                 if (events->sctp_adaptation_layer_event) {
4983                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4984                                 } else {
4985                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4986                                 }
4987                                 if (events->sctp_authentication_event) {
4988                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4989                                 } else {
4990                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4991                                 }
4992                                 if (events->sctp_sender_dry_event) {
4993                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4994                                 } else {
4995                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4996                                 }
4997                                 if (events->sctp_stream_reset_event) {
4998                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4999                                 } else {
5000                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5001                                 }
5002                                 SCTP_TCB_UNLOCK(stcb);
5003                         }
5004                         /*
5005                          * Send up the sender dry event only for 1-to-1
5006                          * style sockets.
5007                          */
5008                         if (events->sctp_sender_dry_event) {
5009                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5010                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5011                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5012                                         if (stcb) {
5013                                                 SCTP_TCB_LOCK(stcb);
5014                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5015                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5016                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5017                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5018                                                 }
5019                                                 SCTP_TCB_UNLOCK(stcb);
5020                                         }
5021                                 }
5022                         }
5023                         SCTP_INP_RUNLOCK(inp);
5024                         break;
5025                 }
5026         case SCTP_ADAPTATION_LAYER:
5027                 {
5028                         struct sctp_setadaptation *adap_bits;
5029
5030                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5031                         SCTP_INP_WLOCK(inp);
5032                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5033                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5034                         SCTP_INP_WUNLOCK(inp);
5035                         break;
5036                 }
5037 #ifdef SCTP_DEBUG
5038         case SCTP_SET_INITIAL_DBG_SEQ:
5039                 {
5040                         uint32_t *vvv;
5041
5042                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5043                         SCTP_INP_WLOCK(inp);
5044                         inp->sctp_ep.initial_sequence_debug = *vvv;
5045                         SCTP_INP_WUNLOCK(inp);
5046                         break;
5047                 }
5048 #endif
5049         case SCTP_DEFAULT_SEND_PARAM:
5050                 {
5051                         struct sctp_sndrcvinfo *s_info;
5052
5053                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5054                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5055
5056                         if (stcb) {
5057                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5058                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5059                                 } else {
5060                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5061                                         error = EINVAL;
5062                                 }
5063                                 SCTP_TCB_UNLOCK(stcb);
5064                         } else {
5065                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5066                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5067                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5068                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5069                                         SCTP_INP_WLOCK(inp);
5070                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5071                                         SCTP_INP_WUNLOCK(inp);
5072                                 }
5073                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5074                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5075                                         SCTP_INP_RLOCK(inp);
5076                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5077                                                 SCTP_TCB_LOCK(stcb);
5078                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5079                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5080                                                 }
5081                                                 SCTP_TCB_UNLOCK(stcb);
5082                                         }
5083                                         SCTP_INP_RUNLOCK(inp);
5084                                 }
5085                         }
5086                         break;
5087                 }
5088         case SCTP_PEER_ADDR_PARAMS:
5089                 {
5090                         struct sctp_paddrparams *paddrp;
5091                         struct sctp_nets *net;
5092                         struct sockaddr *addr;
5093
5094 #if defined(INET) && defined(INET6)
5095                         struct sockaddr_in sin_store;
5096
5097 #endif
5098
5099                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5100                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5101
5102 #if defined(INET) && defined(INET6)
5103                         if (paddrp->spp_address.ss_family == AF_INET6) {
5104                                 struct sockaddr_in6 *sin6;
5105
5106                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5107                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5108                                         in6_sin6_2_sin(&sin_store, sin6);
5109                                         addr = (struct sockaddr *)&sin_store;
5110                                 } else {
5111                                         addr = (struct sockaddr *)&paddrp->spp_address;
5112                                 }
5113                         } else {
5114                                 addr = (struct sockaddr *)&paddrp->spp_address;
5115                         }
5116 #else
5117                         addr = (struct sockaddr *)&paddrp->spp_address;
5118 #endif
5119                         if (stcb != NULL) {
5120                                 net = sctp_findnet(stcb, addr);
5121                         } else {
5122                                 /*
5123                                  * We increment here since
5124                                  * sctp_findassociation_ep_addr() wil do a
5125                                  * decrement if it finds the stcb as long as
5126                                  * the locked tcb (last argument) is NOT a
5127                                  * TCB.. aka NULL.
5128                                  */
5129                                 net = NULL;
5130                                 SCTP_INP_INCR_REF(inp);
5131                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5132                                     &net, NULL, NULL);
5133                                 if (stcb == NULL) {
5134                                         SCTP_INP_DECR_REF(inp);
5135                                 }
5136                         }
5137                         if ((stcb != NULL) && (net == NULL)) {
5138 #ifdef INET
5139                                 if (addr->sa_family == AF_INET) {
5140
5141                                         struct sockaddr_in *sin;
5142
5143                                         sin = (struct sockaddr_in *)addr;
5144                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5145                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5146                                                 SCTP_TCB_UNLOCK(stcb);
5147                                                 error = EINVAL;
5148                                                 break;
5149                                         }
5150                                 } else
5151 #endif
5152 #ifdef INET6
5153                                 if (addr->sa_family == AF_INET6) {
5154                                         struct sockaddr_in6 *sin6;
5155
5156                                         sin6 = (struct sockaddr_in6 *)addr;
5157                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5158                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5159                                                 SCTP_TCB_UNLOCK(stcb);
5160                                                 error = EINVAL;
5161                                                 break;
5162                                         }
5163                                 } else
5164 #endif
5165                                 {
5166                                         error = EAFNOSUPPORT;
5167                                         SCTP_TCB_UNLOCK(stcb);
5168                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5169                                         break;
5170                                 }
5171                         }
5172                         /* sanity checks */
5173                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5174                                 if (stcb)
5175                                         SCTP_TCB_UNLOCK(stcb);
5176                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5177                                 return (EINVAL);
5178                         }
5179                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5180                                 if (stcb)
5181                                         SCTP_TCB_UNLOCK(stcb);
5182                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5183                                 return (EINVAL);
5184                         }
5185                         if (stcb != NULL) {
5186                                 /************************TCB SPECIFIC SET ******************/
5187                                 /*
5188                                  * do we change the timer for HB, we run
5189                                  * only one?
5190                                  */
5191                                 int ovh = 0;
5192
5193                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5194                                         ovh = SCTP_MED_OVERHEAD;
5195                                 } else {
5196                                         ovh = SCTP_MED_V4_OVERHEAD;
5197                                 }
5198
5199                                 /* network sets ? */
5200                                 if (net != NULL) {
5201                                         /************************NET SPECIFIC SET ******************/
5202                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5203                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5204                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5205                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5206                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5207                                                 }
5208                                                 net->dest_state |= SCTP_ADDR_NOHB;
5209                                         }
5210                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5211                                                 if (paddrp->spp_hbinterval) {
5212                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5213                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5214                                                         net->heart_beat_delay = 0;
5215                                                 }
5216                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5217                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5218                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5219                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5220                                         }
5221                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5222                                                 /* on demand HB */
5223                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5224                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5225                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5226                                         }
5227                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5228                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5229                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5230                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5231                                                 }
5232                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5233                                                 net->mtu = paddrp->spp_pathmtu + ovh;
5234                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5235                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5236                                                 }
5237                                         }
5238                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5239                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5240                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5241                                                 }
5242                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5243                                         }
5244                                         if (paddrp->spp_pathmaxrxt) {
5245                                                 if (net->dest_state & SCTP_ADDR_PF) {
5246                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5247                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5248                                                         }
5249                                                 } else {
5250                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5251                                                             (net->error_count > net->pf_threshold)) {
5252                                                                 net->dest_state |= SCTP_ADDR_PF;
5253                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5254                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5255                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5256                                                         }
5257                                                 }
5258                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5259                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5260                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5261                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5262                                                         }
5263                                                 } else {
5264                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5265                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5266                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5267                                                         }
5268                                                 }
5269                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5270                                         }
5271                                         if (paddrp->spp_flags & SPP_DSCP) {
5272                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5273                                                 net->dscp |= 0x01;
5274                                         }
5275 #ifdef INET6
5276                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5277                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5278                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5279                                                         net->flowlabel |= 0x80000000;
5280                                                 }
5281                                         }
5282 #endif
5283                                 } else {
5284                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5285                                         if (paddrp->spp_pathmaxrxt != 0) {
5286                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5287                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5288                                                         if (net->dest_state & SCTP_ADDR_PF) {
5289                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5290                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5291                                                                 }
5292                                                         } else {
5293                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5294                                                                     (net->error_count > net->pf_threshold)) {
5295                                                                         net->dest_state |= SCTP_ADDR_PF;
5296                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5297                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5298                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5299                                                                 }
5300                                                         }
5301                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5302                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5303                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5304                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5305                                                                 }
5306                                                         } else {
5307                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5308                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5309                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5310                                                                 }
5311                                                         }
5312                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5313                                                 }
5314                                         }
5315                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5316                                                 if (paddrp->spp_hbinterval != 0) {
5317                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5318                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5319                                                         stcb->asoc.heart_beat_delay = 0;
5320                                                 }
5321                                                 /* Turn back on the timer */
5322                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5323                                                         if (paddrp->spp_hbinterval != 0) {
5324                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5325                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5326                                                                 net->heart_beat_delay = 0;
5327                                                         }
5328                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5329                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5330                                                         }
5331                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5332                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5333                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5334                                                 }
5335                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5336                                         }
5337                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5338                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5339                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5340                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5341                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5342                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5343                                                                 }
5344                                                         }
5345                                                 }
5346                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5347                                         }
5348                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5349                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5350                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5351                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5352                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5353                                                         }
5354                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5355                                                         net->mtu = paddrp->spp_pathmtu + ovh;
5356                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5357                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5358                                                         }
5359                                                 }
5360                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5361                                         }
5362                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5363                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5364                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5365                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5366                                                         }
5367                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5368                                                 }
5369                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5370                                         }
5371                                         if (paddrp->spp_flags & SPP_DSCP) {
5372                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5373                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5374                                                         net->dscp |= 0x01;
5375                                                 }
5376                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5377                                                 stcb->asoc.default_dscp |= 0x01;
5378                                         }
5379 #ifdef INET6
5380                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5381                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5382                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5383                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5384                                                                 net->flowlabel |= 0x80000000;
5385                                                         }
5386                                                 }
5387                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5388                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5389                                         }
5390 #endif
5391                                 }
5392                                 SCTP_TCB_UNLOCK(stcb);
5393                         } else {
5394                                 /************************NO TCB, SET TO default stuff ******************/
5395                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5396                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5397                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5398                                         SCTP_INP_WLOCK(inp);
5399                                         /*
5400                                          * For the TOS/FLOWLABEL stuff you
5401                                          * set it with the options on the
5402                                          * socket
5403                                          */
5404                                         if (paddrp->spp_pathmaxrxt != 0) {
5405                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5406                                         }
5407                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5408                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5409                                         else if (paddrp->spp_hbinterval != 0) {
5410                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5411                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5412                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5413                                         }
5414                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5415                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5416                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5417                                                 } else if (paddrp->spp_hbinterval) {
5418                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5419                                                 }
5420                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5421                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5422                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5423                                         }
5424                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5425                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5426                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5427                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5428                                         }
5429                                         if (paddrp->spp_flags & SPP_DSCP) {
5430                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5431                                                 inp->sctp_ep.default_dscp |= 0x01;
5432                                         }
5433 #ifdef INET6
5434                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5435                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5436                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5437                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5438                                                 }
5439                                         }
5440 #endif
5441                                         SCTP_INP_WUNLOCK(inp);
5442                                 } else {
5443                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5444                                         error = EINVAL;
5445                                 }
5446                         }
5447                         break;
5448                 }
5449         case SCTP_RTOINFO:
5450                 {
5451                         struct sctp_rtoinfo *srto;
5452                         uint32_t new_init, new_min, new_max;
5453
5454                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5455                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5456
5457                         if (stcb) {
5458                                 if (srto->srto_initial)
5459                                         new_init = srto->srto_initial;
5460                                 else
5461                                         new_init = stcb->asoc.initial_rto;
5462                                 if (srto->srto_max)
5463                                         new_max = srto->srto_max;
5464                                 else
5465                                         new_max = stcb->asoc.maxrto;
5466                                 if (srto->srto_min)
5467                                         new_min = srto->srto_min;
5468                                 else
5469                                         new_min = stcb->asoc.minrto;
5470                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5471                                         stcb->asoc.initial_rto = new_init;
5472                                         stcb->asoc.maxrto = new_max;
5473                                         stcb->asoc.minrto = new_min;
5474                                 } else {
5475                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5476                                         error = EINVAL;
5477                                 }
5478                                 SCTP_TCB_UNLOCK(stcb);
5479                         } else {
5480                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5481                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5482                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5483                                         SCTP_INP_WLOCK(inp);
5484                                         if (srto->srto_initial)
5485                                                 new_init = srto->srto_initial;
5486                                         else
5487                                                 new_init = inp->sctp_ep.initial_rto;
5488                                         if (srto->srto_max)
5489                                                 new_max = srto->srto_max;
5490                                         else
5491                                                 new_max = inp->sctp_ep.sctp_maxrto;
5492                                         if (srto->srto_min)
5493                                                 new_min = srto->srto_min;
5494                                         else
5495                                                 new_min = inp->sctp_ep.sctp_minrto;
5496                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5497                                                 inp->sctp_ep.initial_rto = new_init;
5498                                                 inp->sctp_ep.sctp_maxrto = new_max;
5499                                                 inp->sctp_ep.sctp_minrto = new_min;
5500                                         } else {
5501                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5502                                                 error = EINVAL;
5503                                         }
5504                                         SCTP_INP_WUNLOCK(inp);
5505                                 } else {
5506                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5507                                         error = EINVAL;
5508                                 }
5509                         }
5510                         break;
5511                 }
5512         case SCTP_ASSOCINFO:
5513                 {
5514                         struct sctp_assocparams *sasoc;
5515
5516                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5517                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5518                         if (sasoc->sasoc_cookie_life) {
5519                                 /* boundary check the cookie life */
5520                                 if (sasoc->sasoc_cookie_life < 1000)
5521                                         sasoc->sasoc_cookie_life = 1000;
5522                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5523                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5524                                 }
5525                         }
5526                         if (stcb) {
5527                                 if (sasoc->sasoc_asocmaxrxt)
5528                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5529                                 if (sasoc->sasoc_cookie_life) {
5530                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5531                                 }
5532                                 SCTP_TCB_UNLOCK(stcb);
5533                         } else {
5534                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5535                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5536                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5537                                         SCTP_INP_WLOCK(inp);
5538                                         if (sasoc->sasoc_asocmaxrxt)
5539                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5540                                         if (sasoc->sasoc_cookie_life) {
5541                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5542                                         }
5543                                         SCTP_INP_WUNLOCK(inp);
5544                                 } else {
5545                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5546                                         error = EINVAL;
5547                                 }
5548                         }
5549                         break;
5550                 }
5551         case SCTP_INITMSG:
5552                 {
5553                         struct sctp_initmsg *sinit;
5554
5555                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5556                         SCTP_INP_WLOCK(inp);
5557                         if (sinit->sinit_num_ostreams)
5558                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5559
5560                         if (sinit->sinit_max_instreams)
5561                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5562
5563                         if (sinit->sinit_max_attempts)
5564                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5565
5566                         if (sinit->sinit_max_init_timeo)
5567                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5568                         SCTP_INP_WUNLOCK(inp);
5569                         break;
5570                 }
5571         case SCTP_PRIMARY_ADDR:
5572                 {
5573                         struct sctp_setprim *spa;
5574                         struct sctp_nets *net;
5575                         struct sockaddr *addr;
5576
5577 #if defined(INET) && defined(INET6)
5578                         struct sockaddr_in sin_store;
5579
5580 #endif
5581
5582                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5583                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5584
5585 #if defined(INET) && defined(INET6)
5586                         if (spa->ssp_addr.ss_family == AF_INET6) {
5587                                 struct sockaddr_in6 *sin6;
5588
5589                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5590                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5591                                         in6_sin6_2_sin(&sin_store, sin6);
5592                                         addr = (struct sockaddr *)&sin_store;
5593                                 } else {
5594                                         addr = (struct sockaddr *)&spa->ssp_addr;
5595                                 }
5596                         } else {
5597                                 addr = (struct sockaddr *)&spa->ssp_addr;
5598                         }
5599 #else
5600                         addr = (struct sockaddr *)&spa->ssp_addr;
5601 #endif
5602                         if (stcb != NULL) {
5603                                 net = sctp_findnet(stcb, addr);
5604                         } else {
5605                                 /*
5606                                  * We increment here since
5607                                  * sctp_findassociation_ep_addr() wil do a
5608                                  * decrement if it finds the stcb as long as
5609                                  * the locked tcb (last argument) is NOT a
5610                                  * TCB.. aka NULL.
5611                                  */
5612                                 net = NULL;
5613                                 SCTP_INP_INCR_REF(inp);
5614                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5615                                     &net, NULL, NULL);
5616                                 if (stcb == NULL) {
5617                                         SCTP_INP_DECR_REF(inp);
5618                                 }
5619                         }
5620
5621                         if ((stcb != NULL) && (net != NULL)) {
5622                                 if ((net != stcb->asoc.primary_destination) &&
5623                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5624                                         /* Ok we need to set it */
5625                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5626                                                 if ((stcb->asoc.alternate) &&
5627                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5628                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5629                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5630                                                         stcb->asoc.alternate = NULL;
5631                                                 }
5632                                         }
5633                                 }
5634                         } else {
5635                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5636                                 error = EINVAL;
5637                         }
5638                         if (stcb != NULL) {
5639                                 SCTP_TCB_UNLOCK(stcb);
5640                         }
5641                         break;
5642                 }
5643         case SCTP_SET_DYNAMIC_PRIMARY:
5644                 {
5645                         union sctp_sockstore *ss;
5646
5647                         error = priv_check(curthread,
5648                             PRIV_NETINET_RESERVEDPORT);
5649                         if (error)
5650                                 break;
5651
5652                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5653                         /* SUPER USER CHECK? */
5654                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5655                         break;
5656                 }
5657         case SCTP_SET_PEER_PRIMARY_ADDR:
5658                 {
5659                         struct sctp_setpeerprim *sspp;
5660                         struct sockaddr *addr;
5661
5662 #if defined(INET) && defined(INET6)
5663                         struct sockaddr_in sin_store;
5664
5665 #endif
5666
5667                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5668                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5669                         if (stcb != NULL) {
5670                                 struct sctp_ifa *ifa;
5671
5672 #if defined(INET) && defined(INET6)
5673                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5674                                         struct sockaddr_in6 *sin6;
5675
5676                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5677                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5678                                                 in6_sin6_2_sin(&sin_store, sin6);
5679                                                 addr = (struct sockaddr *)&sin_store;
5680                                         } else {
5681                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5682                                         }
5683                                 } else {
5684                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5685                                 }
5686 #else
5687                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5688 #endif
5689                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5690                                 if (ifa == NULL) {
5691                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5692                                         error = EINVAL;
5693                                         goto out_of_it;
5694                                 }
5695                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5696                                         /*
5697                                          * Must validate the ifa found is in
5698                                          * our ep
5699                                          */
5700                                         struct sctp_laddr *laddr;
5701                                         int found = 0;
5702
5703                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5704                                                 if (laddr->ifa == NULL) {
5705                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5706                                                             __FUNCTION__);
5707                                                         continue;
5708                                                 }
5709                                                 if (laddr->ifa == ifa) {
5710                                                         found = 1;
5711                                                         break;
5712                                                 }
5713                                         }
5714                                         if (!found) {
5715                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5716                                                 error = EINVAL;
5717                                                 goto out_of_it;
5718                                         }
5719                                 } else {
5720                                         switch (addr->sa_family) {
5721 #ifdef INET
5722                                         case AF_INET:
5723                                                 {
5724                                                         struct sockaddr_in *sin;
5725
5726                                                         sin = (struct sockaddr_in *)addr;
5727                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5728                                                             &sin->sin_addr) != 0) {
5729                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5730                                                                 error = EINVAL;
5731                                                                 goto out_of_it;
5732                                                         }
5733                                                         break;
5734                                                 }
5735 #endif
5736 #ifdef INET6
5737                                         case AF_INET6:
5738                                                 {
5739                                                         struct sockaddr_in6 *sin6;
5740
5741                                                         sin6 = (struct sockaddr_in6 *)addr;
5742                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5743                                                             &sin6->sin6_addr) != 0) {
5744                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5745                                                                 error = EINVAL;
5746                                                                 goto out_of_it;
5747                                                         }
5748                                                         break;
5749                                                 }
5750 #endif
5751                                         default:
5752                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5753                                                 error = EINVAL;
5754                                                 goto out_of_it;
5755                                         }
5756                                 }
5757                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5759                                         error = EINVAL;
5760                                 }
5761                 out_of_it:
5762                                 SCTP_TCB_UNLOCK(stcb);
5763                         } else {
5764                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5765                                 error = EINVAL;
5766                         }
5767                         break;
5768                 }
5769         case SCTP_BINDX_ADD_ADDR:
5770                 {
5771                         struct sctp_getaddresses *addrs;
5772                         struct thread *td;
5773
5774                         td = (struct thread *)p;
5775                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5776                             optsize);
5777 #ifdef INET
5778                         if (addrs->addr->sa_family == AF_INET) {
5779                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5780                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5781                                         error = EINVAL;
5782                                         break;
5783                                 }
5784                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5785                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5786                                         break;
5787                                 }
5788                         } else
5789 #endif
5790 #ifdef INET6
5791                         if (addrs->addr->sa_family == AF_INET6) {
5792                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5793                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5794                                         error = EINVAL;
5795                                         break;
5796                                 }
5797                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5798                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5799                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5800                                         break;
5801                                 }
5802                         } else
5803 #endif
5804                         {
5805                                 error = EAFNOSUPPORT;
5806                                 break;
5807                         }
5808                         sctp_bindx_add_address(so, inp, addrs->addr,
5809                             addrs->sget_assoc_id, vrf_id,
5810                             &error, p);
5811                         break;
5812                 }
5813         case SCTP_BINDX_REM_ADDR:
5814                 {
5815                         struct sctp_getaddresses *addrs;
5816                         struct thread *td;
5817
5818                         td = (struct thread *)p;
5819
5820                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5821 #ifdef INET
5822                         if (addrs->addr->sa_family == AF_INET) {
5823                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5824                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5825                                         error = EINVAL;
5826                                         break;
5827                                 }
5828                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5829                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5830                                         break;
5831                                 }
5832                         } else
5833 #endif
5834 #ifdef INET6
5835                         if (addrs->addr->sa_family == AF_INET6) {
5836                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5837                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5838                                         error = EINVAL;
5839                                         break;
5840                                 }
5841                                 if (td != NULL &&
5842                                     (error = prison_local_ip6(td->td_ucred,
5843                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5844                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5845                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5846                                         break;
5847                                 }
5848                         } else
5849 #endif
5850                         {
5851                                 error = EAFNOSUPPORT;
5852                                 break;
5853                         }
5854                         sctp_bindx_delete_address(inp, addrs->addr,
5855                             addrs->sget_assoc_id, vrf_id,
5856                             &error);
5857                         break;
5858                 }
5859         case SCTP_EVENT:
5860                 {
5861                         struct sctp_event *event;
5862                         uint32_t event_type;
5863
5864                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5865                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5866                         switch (event->se_type) {
5867                         case SCTP_ASSOC_CHANGE:
5868                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5869                                 break;
5870                         case SCTP_PEER_ADDR_CHANGE:
5871                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5872                                 break;
5873                         case SCTP_REMOTE_ERROR:
5874                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5875                                 break;
5876                         case SCTP_SEND_FAILED:
5877                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5878                                 break;
5879                         case SCTP_SHUTDOWN_EVENT:
5880                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5881                                 break;
5882                         case SCTP_ADAPTATION_INDICATION:
5883                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5884                                 break;
5885                         case SCTP_PARTIAL_DELIVERY_EVENT:
5886                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5887                                 break;
5888                         case SCTP_AUTHENTICATION_EVENT:
5889                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5890                                 break;
5891                         case SCTP_STREAM_RESET_EVENT:
5892                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5893                                 break;
5894                         case SCTP_SENDER_DRY_EVENT:
5895                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5896                                 break;
5897                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5898                                 event_type = 0;
5899                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5900                                 error = ENOTSUP;
5901                                 break;
5902                         case SCTP_ASSOC_RESET_EVENT:
5903                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5904                                 break;
5905                         case SCTP_STREAM_CHANGE_EVENT:
5906                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5907                                 break;
5908                         case SCTP_SEND_FAILED_EVENT:
5909                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5910                                 break;
5911                         default:
5912                                 event_type = 0;
5913                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5914                                 error = EINVAL;
5915                                 break;
5916                         }
5917                         if (event_type > 0) {
5918                                 if (stcb) {
5919                                         if (event->se_on) {
5920                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5921                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5922                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5923                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5924                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5925                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5926                                                         }
5927                                                 }
5928                                         } else {
5929                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5930                                         }
5931                                         SCTP_TCB_UNLOCK(stcb);
5932                                 } else {
5933                                         /*
5934                                          * We don't want to send up a storm
5935                                          * of events, so return an error for
5936                                          * sender dry events
5937                                          */
5938                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5939                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5940                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5941                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5942                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5943                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5944                                                 error = ENOTSUP;
5945                                                 break;
5946                                         }
5947                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5948                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5949                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5950                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5951                                                 SCTP_INP_WLOCK(inp);
5952                                                 if (event->se_on) {
5953                                                         sctp_feature_on(inp, event_type);
5954                                                 } else {
5955                                                         sctp_feature_off(inp, event_type);
5956                                                 }
5957                                                 SCTP_INP_WUNLOCK(inp);
5958                                         }
5959                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5960                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5961                                                 SCTP_INP_RLOCK(inp);
5962                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5963                                                         SCTP_TCB_LOCK(stcb);
5964                                                         if (event->se_on) {
5965                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5966                                                         } else {
5967                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5968                                                         }
5969                                                         SCTP_TCB_UNLOCK(stcb);
5970                                                 }
5971                                                 SCTP_INP_RUNLOCK(inp);
5972                                         }
5973                                 }
5974                         }
5975                         break;
5976                 }
5977         case SCTP_RECVRCVINFO:
5978                 {
5979                         int *onoff;
5980
5981                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5982                         SCTP_INP_WLOCK(inp);
5983                         if (*onoff != 0) {
5984                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5985                         } else {
5986                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5987                         }
5988                         SCTP_INP_WUNLOCK(inp);
5989                         break;
5990                 }
5991         case SCTP_RECVNXTINFO:
5992                 {
5993                         int *onoff;
5994
5995                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5996                         SCTP_INP_WLOCK(inp);
5997                         if (*onoff != 0) {
5998                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5999                         } else {
6000                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6001                         }
6002                         SCTP_INP_WUNLOCK(inp);
6003                         break;
6004                 }
6005         case SCTP_DEFAULT_SNDINFO:
6006                 {
6007                         struct sctp_sndinfo *info;
6008                         uint16_t policy;
6009
6010                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6011                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6012
6013                         if (stcb) {
6014                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6015                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6016                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6017                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6018                                         stcb->asoc.def_send.sinfo_flags |= policy;
6019                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6020                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6021                                 } else {
6022                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6023                                         error = EINVAL;
6024                                 }
6025                                 SCTP_TCB_UNLOCK(stcb);
6026                         } else {
6027                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6028                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6029                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6030                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6031                                         SCTP_INP_WLOCK(inp);
6032                                         inp->def_send.sinfo_stream = info->snd_sid;
6033                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6034                                         inp->def_send.sinfo_flags = info->snd_flags;
6035                                         inp->def_send.sinfo_flags |= policy;
6036                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6037                                         inp->def_send.sinfo_context = info->snd_context;
6038                                         SCTP_INP_WUNLOCK(inp);
6039                                 }
6040                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6041                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6042                                         SCTP_INP_RLOCK(inp);
6043                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6044                                                 SCTP_TCB_LOCK(stcb);
6045                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6046                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6047                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6048                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6049                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6050                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6051                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6052                                                 }
6053                                                 SCTP_TCB_UNLOCK(stcb);
6054                                         }
6055                                         SCTP_INP_RUNLOCK(inp);
6056                                 }
6057                         }
6058                         break;
6059                 }
6060         case SCTP_DEFAULT_PRINFO:
6061                 {
6062                         struct sctp_default_prinfo *info;
6063
6064                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6065                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6066
6067                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6068                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6069                                 error = EINVAL;
6070                                 break;
6071                         }
6072                         if (stcb) {
6073                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6074                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6075                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6076                                 SCTP_TCB_UNLOCK(stcb);
6077                         } else {
6078                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6079                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6080                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6081                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6082                                         SCTP_INP_WLOCK(inp);
6083                                         inp->def_send.sinfo_flags &= 0xfff0;
6084                                         inp->def_send.sinfo_flags |= info->pr_policy;
6085                                         inp->def_send.sinfo_timetolive = info->pr_value;
6086                                         SCTP_INP_WUNLOCK(inp);
6087                                 }
6088                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6089                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6090                                         SCTP_INP_RLOCK(inp);
6091                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6092                                                 SCTP_TCB_LOCK(stcb);
6093                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6094                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6095                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6096                                                 SCTP_TCB_UNLOCK(stcb);
6097                                         }
6098                                         SCTP_INP_RUNLOCK(inp);
6099                                 }
6100                         }
6101                         break;
6102                 }
6103         case SCTP_PEER_ADDR_THLDS:
6104                 /* Applies to the specific association */
6105                 {
6106                         struct sctp_paddrthlds *thlds;
6107                         struct sctp_nets *net;
6108                         struct sockaddr *addr;
6109
6110 #if defined(INET) && defined(INET6)
6111                         struct sockaddr_in sin_store;
6112
6113 #endif
6114
6115                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6116                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6117
6118 #if defined(INET) && defined(INET6)
6119                         if (thlds->spt_address.ss_family == AF_INET6) {
6120                                 struct sockaddr_in6 *sin6;
6121
6122                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6123                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6124                                         in6_sin6_2_sin(&sin_store, sin6);
6125                                         addr = (struct sockaddr *)&sin_store;
6126                                 } else {
6127                                         addr = (struct sockaddr *)&thlds->spt_address;
6128                                 }
6129                         } else {
6130                                 addr = (struct sockaddr *)&thlds->spt_address;
6131                         }
6132 #else
6133                         addr = (struct sockaddr *)&thlds->spt_address;
6134 #endif
6135                         if (stcb != NULL) {
6136                                 net = sctp_findnet(stcb, addr);
6137                         } else {
6138                                 /*
6139                                  * We increment here since
6140                                  * sctp_findassociation_ep_addr() wil do a
6141                                  * decrement if it finds the stcb as long as
6142                                  * the locked tcb (last argument) is NOT a
6143                                  * TCB.. aka NULL.
6144                                  */
6145                                 net = NULL;
6146                                 SCTP_INP_INCR_REF(inp);
6147                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6148                                     &net, NULL, NULL);
6149                                 if (stcb == NULL) {
6150                                         SCTP_INP_DECR_REF(inp);
6151                                 }
6152                         }
6153                         if ((stcb != NULL) && (net == NULL)) {
6154 #ifdef INET
6155                                 if (addr->sa_family == AF_INET) {
6156
6157                                         struct sockaddr_in *sin;
6158
6159                                         sin = (struct sockaddr_in *)addr;
6160                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6161                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6162                                                 SCTP_TCB_UNLOCK(stcb);
6163                                                 error = EINVAL;
6164                                                 break;
6165                                         }
6166                                 } else
6167 #endif
6168 #ifdef INET6
6169                                 if (addr->sa_family == AF_INET6) {
6170                                         struct sockaddr_in6 *sin6;
6171
6172                                         sin6 = (struct sockaddr_in6 *)addr;
6173                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6174                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6175                                                 SCTP_TCB_UNLOCK(stcb);
6176                                                 error = EINVAL;
6177                                                 break;
6178                                         }
6179                                 } else
6180 #endif
6181                                 {
6182                                         error = EAFNOSUPPORT;
6183                                         SCTP_TCB_UNLOCK(stcb);
6184                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6185                                         break;
6186                                 }
6187                         }
6188                         if (stcb != NULL) {
6189                                 if (net != NULL) {
6190                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6191                                         net->pf_threshold = thlds->spt_pathpfthld;
6192                                         if (net->dest_state & SCTP_ADDR_PF) {
6193                                                 if ((net->error_count > net->failure_threshold) ||
6194                                                     (net->error_count <= net->pf_threshold)) {
6195                                                         net->dest_state &= ~SCTP_ADDR_PF;
6196                                                 }
6197                                         } else {
6198                                                 if ((net->error_count > net->pf_threshold) &&
6199                                                     (net->error_count <= net->failure_threshold)) {
6200                                                         net->dest_state |= SCTP_ADDR_PF;
6201                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6202                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6203                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6204                                                 }
6205                                         }
6206                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6207                                                 if (net->error_count > net->failure_threshold) {
6208                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6209                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6210                                                 }
6211                                         } else {
6212                                                 if (net->error_count <= net->failure_threshold) {
6213                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6214                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6215                                                 }
6216                                         }
6217                                 } else {
6218                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6219                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6220                                                 net->pf_threshold = thlds->spt_pathpfthld;
6221                                                 if (net->dest_state & SCTP_ADDR_PF) {
6222                                                         if ((net->error_count > net->failure_threshold) ||
6223                                                             (net->error_count <= net->pf_threshold)) {
6224                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6225                                                         }
6226                                                 } else {
6227                                                         if ((net->error_count > net->pf_threshold) &&
6228                                                             (net->error_count <= net->failure_threshold)) {
6229                                                                 net->dest_state |= SCTP_ADDR_PF;
6230                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6231                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6232                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6233                                                         }
6234                                                 }
6235                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6236                                                         if (net->error_count > net->failure_threshold) {
6237                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6238                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6239                                                         }
6240                                                 } else {
6241                                                         if (net->error_count <= net->failure_threshold) {
6242                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6243                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6244                                                         }
6245                                                 }
6246                                         }
6247                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6248                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6249                                 }
6250                                 SCTP_TCB_UNLOCK(stcb);
6251                         } else {
6252                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6253                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6254                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6255                                         SCTP_INP_WLOCK(inp);
6256                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6257                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6258                                         SCTP_INP_WUNLOCK(inp);
6259                                 } else {
6260                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6261                                         error = EINVAL;
6262                                 }
6263                         }
6264                         break;
6265                 }
6266         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6267                 {
6268                         struct sctp_udpencaps *encaps;
6269                         struct sctp_nets *net;
6270                         struct sockaddr *addr;
6271
6272 #if defined(INET) && defined(INET6)
6273                         struct sockaddr_in sin_store;
6274
6275 #endif
6276
6277                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6278                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6279
6280 #if defined(INET) && defined(INET6)
6281                         if (encaps->sue_address.ss_family == AF_INET6) {
6282                                 struct sockaddr_in6 *sin6;
6283
6284                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6285                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6286                                         in6_sin6_2_sin(&sin_store, sin6);
6287                                         addr = (struct sockaddr *)&sin_store;
6288                                 } else {
6289                                         addr = (struct sockaddr *)&encaps->sue_address;
6290                                 }
6291                         } else {
6292                                 addr = (struct sockaddr *)&encaps->sue_address;
6293                         }
6294 #else
6295                         addr = (struct sockaddr *)&encaps->sue_address;
6296 #endif
6297                         if (stcb != NULL) {
6298                                 net = sctp_findnet(stcb, addr);
6299                         } else {
6300                                 /*
6301                                  * We increment here since
6302                                  * sctp_findassociation_ep_addr() wil do a
6303                                  * decrement if it finds the stcb as long as
6304                                  * the locked tcb (last argument) is NOT a
6305                                  * TCB.. aka NULL.
6306                                  */
6307                                 net = NULL;
6308                                 SCTP_INP_INCR_REF(inp);
6309                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6310                                 if (stcb == NULL) {
6311                                         SCTP_INP_DECR_REF(inp);
6312                                 }
6313                         }
6314                         if ((stcb != NULL) && (net == NULL)) {
6315 #ifdef INET
6316                                 if (addr->sa_family == AF_INET) {
6317
6318                                         struct sockaddr_in *sin;
6319
6320                                         sin = (struct sockaddr_in *)addr;
6321                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6322                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6323                                                 SCTP_TCB_UNLOCK(stcb);
6324                                                 error = EINVAL;
6325                                                 break;
6326                                         }
6327                                 } else
6328 #endif
6329 #ifdef INET6
6330                                 if (addr->sa_family == AF_INET6) {
6331                                         struct sockaddr_in6 *sin6;
6332
6333                                         sin6 = (struct sockaddr_in6 *)addr;
6334                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6335                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6336                                                 SCTP_TCB_UNLOCK(stcb);
6337                                                 error = EINVAL;
6338                                                 break;
6339                                         }
6340                                 } else
6341 #endif
6342                                 {
6343                                         error = EAFNOSUPPORT;
6344                                         SCTP_TCB_UNLOCK(stcb);
6345                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6346                                         break;
6347                                 }
6348                         }
6349                         if (stcb != NULL) {
6350                                 if (net != NULL) {
6351                                         net->port = encaps->sue_port;
6352                                 } else {
6353                                         stcb->asoc.port = encaps->sue_port;
6354                                 }
6355                                 SCTP_TCB_UNLOCK(stcb);
6356                         } else {
6357                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6358                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6359                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6360                                         SCTP_INP_WLOCK(inp);
6361                                         inp->sctp_ep.port = encaps->sue_port;
6362                                         SCTP_INP_WUNLOCK(inp);
6363                                 } else {
6364                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6365                                         error = EINVAL;
6366                                 }
6367                         }
6368                         break;
6369                 }
6370         case SCTP_ECN_SUPPORTED:
6371                 {
6372                         struct sctp_assoc_value *av;
6373
6374                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6375                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6376
6377                         if (stcb) {
6378                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6379                                 error = EINVAL;
6380                                 SCTP_TCB_UNLOCK(stcb);
6381                         } else {
6382                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6383                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6384                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6385                                         SCTP_INP_WLOCK(inp);
6386                                         if (av->assoc_value == 0) {
6387                                                 inp->ecn_supported = 0;
6388                                         } else {
6389                                                 inp->ecn_supported = 1;
6390                                         }
6391                                         SCTP_INP_WUNLOCK(inp);
6392                                 } else {
6393                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6394                                         error = EINVAL;
6395                                 }
6396                         }
6397                         break;
6398                 }
6399         case SCTP_PR_SUPPORTED:
6400                 {
6401                         struct sctp_assoc_value *av;
6402
6403                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6404                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6405
6406                         if (stcb) {
6407                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6408                                 error = EINVAL;
6409                                 SCTP_TCB_UNLOCK(stcb);
6410                         } else {
6411                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6412                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6413                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6414                                         SCTP_INP_WLOCK(inp);
6415                                         if (av->assoc_value == 0) {
6416                                                 inp->prsctp_supported = 0;
6417                                         } else {
6418                                                 inp->prsctp_supported = 1;
6419                                         }
6420                                         SCTP_INP_WUNLOCK(inp);
6421                                 } else {
6422                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6423                                         error = EINVAL;
6424                                 }
6425                         }
6426                         break;
6427                 }
6428         case SCTP_AUTH_SUPPORTED:
6429                 {
6430                         struct sctp_assoc_value *av;
6431
6432                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6433                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6434
6435                         if (stcb) {
6436                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6437                                 error = EINVAL;
6438                                 SCTP_TCB_UNLOCK(stcb);
6439                         } else {
6440                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6441                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6442                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6443                                         if ((av->assoc_value == 0) &&
6444                                             (inp->asconf_supported == 1)) {
6445                                                 /*
6446                                                  * AUTH is required for
6447                                                  * ASCONF
6448                                                  */
6449                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6450                                                 error = EINVAL;
6451                                         } else {
6452                                                 SCTP_INP_WLOCK(inp);
6453                                                 if (av->assoc_value == 0) {
6454                                                         inp->auth_supported = 0;
6455                                                 } else {
6456                                                         inp->auth_supported = 1;
6457                                                 }
6458                                                 SCTP_INP_WUNLOCK(inp);
6459                                         }
6460                                 } else {
6461                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6462                                         error = EINVAL;
6463                                 }
6464                         }
6465                         break;
6466                 }
6467         case SCTP_ASCONF_SUPPORTED:
6468                 {
6469                         struct sctp_assoc_value *av;
6470
6471                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6472                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6473
6474                         if (stcb) {
6475                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6476                                 error = EINVAL;
6477                                 SCTP_TCB_UNLOCK(stcb);
6478                         } else {
6479                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6480                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6481                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6482                                         if ((av->assoc_value != 0) &&
6483                                             (inp->auth_supported == 0)) {
6484                                                 /*
6485                                                  * AUTH is required for
6486                                                  * ASCONF
6487                                                  */
6488                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6489                                                 error = EINVAL;
6490                                         } else {
6491                                                 SCTP_INP_WLOCK(inp);
6492                                                 if (av->assoc_value == 0) {
6493                                                         inp->asconf_supported = 0;
6494                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6495                                                             inp->sctp_ep.local_auth_chunks);
6496                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6497                                                             inp->sctp_ep.local_auth_chunks);
6498                                                 } else {
6499                                                         inp->asconf_supported = 1;
6500                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6501                                                             inp->sctp_ep.local_auth_chunks);
6502                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6503                                                             inp->sctp_ep.local_auth_chunks);
6504                                                 }
6505                                                 SCTP_INP_WUNLOCK(inp);
6506                                         }
6507                                 } else {
6508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6509                                         error = EINVAL;
6510                                 }
6511                         }
6512                         break;
6513                 }
6514         case SCTP_RECONFIG_SUPPORTED:
6515                 {
6516                         struct sctp_assoc_value *av;
6517
6518                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6519                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6520
6521                         if (stcb) {
6522                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6523                                 error = EINVAL;
6524                                 SCTP_TCB_UNLOCK(stcb);
6525                         } else {
6526                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6527                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6528                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6529                                         SCTP_INP_WLOCK(inp);
6530                                         if (av->assoc_value == 0) {
6531                                                 inp->reconfig_supported = 0;
6532                                         } else {
6533                                                 inp->reconfig_supported = 1;
6534                                         }
6535                                         SCTP_INP_WUNLOCK(inp);
6536                                 } else {
6537                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6538                                         error = EINVAL;
6539                                 }
6540                         }
6541                         break;
6542                 }
6543         case SCTP_NRSACK_SUPPORTED:
6544                 {
6545                         struct sctp_assoc_value *av;
6546
6547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6548                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6549
6550                         if (stcb) {
6551                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6552                                 error = EINVAL;
6553                                 SCTP_TCB_UNLOCK(stcb);
6554                         } else {
6555                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6556                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6557                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6558                                         SCTP_INP_WLOCK(inp);
6559                                         if (av->assoc_value == 0) {
6560                                                 inp->nrsack_supported = 0;
6561                                         } else {
6562                                                 inp->nrsack_supported = 1;
6563                                         }
6564                                         SCTP_INP_WUNLOCK(inp);
6565                                 } else {
6566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6567                                         error = EINVAL;
6568                                 }
6569                         }
6570                         break;
6571                 }
6572         case SCTP_PKTDROP_SUPPORTED:
6573                 {
6574                         struct sctp_assoc_value *av;
6575
6576                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6577                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6578
6579                         if (stcb) {
6580                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6581                                 error = EINVAL;
6582                                 SCTP_TCB_UNLOCK(stcb);
6583                         } else {
6584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6586                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6587                                         SCTP_INP_WLOCK(inp);
6588                                         if (av->assoc_value == 0) {
6589                                                 inp->pktdrop_supported = 0;
6590                                         } else {
6591                                                 inp->pktdrop_supported = 1;
6592                                         }
6593                                         SCTP_INP_WUNLOCK(inp);
6594                                 } else {
6595                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6596                                         error = EINVAL;
6597                                 }
6598                         }
6599                         break;
6600                 }
6601         case SCTP_MAX_CWND:
6602                 {
6603                         struct sctp_assoc_value *av;
6604                         struct sctp_nets *net;
6605
6606                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6607                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6608
6609                         if (stcb) {
6610                                 stcb->asoc.max_cwnd = av->assoc_value;
6611                                 if (stcb->asoc.max_cwnd > 0) {
6612                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6613                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6614                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6615                                                         net->cwnd = stcb->asoc.max_cwnd;
6616                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6617                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6618                                                         }
6619                                                 }
6620                                         }
6621                                 }
6622                                 SCTP_TCB_UNLOCK(stcb);
6623                         } else {
6624                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6625                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6626                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6627                                         SCTP_INP_WLOCK(inp);
6628                                         inp->max_cwnd = av->assoc_value;
6629                                         SCTP_INP_WUNLOCK(inp);
6630                                 } else {
6631                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6632                                         error = EINVAL;
6633                                 }
6634                         }
6635                         break;
6636                 }
6637         default:
6638                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6639                 error = ENOPROTOOPT;
6640                 break;
6641         }                       /* end switch (opt) */
6642         return (error);
6643 }
6644
6645 int
6646 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6647 {
6648         void *optval = NULL;
6649         size_t optsize = 0;
6650         void *p;
6651         int error = 0;
6652
6653         if (sopt->sopt_level != IPPROTO_SCTP) {
6654                 /* wrong proto level... send back up to IP */
6655 #ifdef INET6
6656                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6657                         error = ip6_ctloutput(so, sopt);
6658 #endif                          /* INET6 */
6659 #if defined(INET) && defined(INET6)
6660                 else
6661 #endif
6662 #ifdef INET
6663                         error = ip_ctloutput(so, sopt);
6664 #endif
6665                 return (error);
6666         }
6667         optsize = sopt->sopt_valsize;
6668         if (optsize) {
6669                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6670                 if (optval == NULL) {
6671                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6672                         return (ENOBUFS);
6673                 }
6674                 error = sooptcopyin(sopt, optval, optsize, optsize);
6675                 if (error) {
6676                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6677                         goto out;
6678                 }
6679         }
6680         p = (void *)sopt->sopt_td;
6681         if (sopt->sopt_dir == SOPT_SET) {
6682                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6683         } else if (sopt->sopt_dir == SOPT_GET) {
6684                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6685         } else {
6686                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6687                 error = EINVAL;
6688         }
6689         if ((error == 0) && (optval != NULL)) {
6690                 error = sooptcopyout(sopt, optval, optsize);
6691                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6692         } else if (optval != NULL) {
6693                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6694         }
6695 out:
6696         return (error);
6697 }
6698
6699 #ifdef INET
6700 static int
6701 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6702 {
6703         int error = 0;
6704         int create_lock_on = 0;
6705         uint32_t vrf_id;
6706         struct sctp_inpcb *inp;
6707         struct sctp_tcb *stcb = NULL;
6708
6709         inp = (struct sctp_inpcb *)so->so_pcb;
6710         if (inp == NULL) {
6711                 /* I made the same as TCP since we are not setup? */
6712                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6713                 return (ECONNRESET);
6714         }
6715         if (addr == NULL) {
6716                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6717                 return EINVAL;
6718         }
6719         switch (addr->sa_family) {
6720 #ifdef INET6
6721         case AF_INET6:
6722                 {
6723                         struct sockaddr_in6 *sin6p;
6724
6725                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6726                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6727                                 return (EINVAL);
6728                         }
6729                         sin6p = (struct sockaddr_in6 *)addr;
6730                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6731                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6732                                 return (error);
6733                         }
6734                         break;
6735                 }
6736 #endif
6737 #ifdef INET
6738         case AF_INET:
6739                 {
6740                         struct sockaddr_in *sinp;
6741
6742                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6744                                 return (EINVAL);
6745                         }
6746                         sinp = (struct sockaddr_in *)addr;
6747                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6748                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6749                                 return (error);
6750                         }
6751                         break;
6752                 }
6753 #endif
6754         default:
6755                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6756                 return (EAFNOSUPPORT);
6757         }
6758         SCTP_INP_INCR_REF(inp);
6759         SCTP_ASOC_CREATE_LOCK(inp);
6760         create_lock_on = 1;
6761
6762
6763         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6764             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6765                 /* Should I really unlock ? */
6766                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6767                 error = EFAULT;
6768                 goto out_now;
6769         }
6770 #ifdef INET6
6771         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6772             (addr->sa_family == AF_INET6)) {
6773                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6774                 error = EINVAL;
6775                 goto out_now;
6776         }
6777 #endif
6778         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6779             SCTP_PCB_FLAGS_UNBOUND) {
6780                 /* Bind a ephemeral port */
6781                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6782                 if (error) {
6783                         goto out_now;
6784                 }
6785         }
6786         /* Now do we connect? */
6787         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6788             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6789                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6790                 error = EINVAL;
6791                 goto out_now;
6792         }
6793         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6794             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6795                 /* We are already connected AND the TCP model */
6796                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6797                 error = EADDRINUSE;
6798                 goto out_now;
6799         }
6800         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6801                 SCTP_INP_RLOCK(inp);
6802                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6803                 SCTP_INP_RUNLOCK(inp);
6804         } else {
6805                 /*
6806                  * We increment here since sctp_findassociation_ep_addr()
6807                  * will do a decrement if it finds the stcb as long as the
6808                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6809                  */
6810                 SCTP_INP_INCR_REF(inp);
6811                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6812                 if (stcb == NULL) {
6813                         SCTP_INP_DECR_REF(inp);
6814                 } else {
6815                         SCTP_TCB_UNLOCK(stcb);
6816                 }
6817         }
6818         if (stcb != NULL) {
6819                 /* Already have or am bring up an association */
6820                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6821                 error = EALREADY;
6822                 goto out_now;
6823         }
6824         vrf_id = inp->def_vrf_id;
6825         /* We are GOOD to go */
6826         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6827         if (stcb == NULL) {
6828                 /* Gak! no memory */
6829                 goto out_now;
6830         }
6831         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6832                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6833                 /* Set the connected flag so we can queue data */
6834                 soisconnecting(so);
6835         }
6836         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6837         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6838
6839         /* initialize authentication parameters for the assoc */
6840         sctp_initialize_auth_params(inp, stcb);
6841
6842         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6843         SCTP_TCB_UNLOCK(stcb);
6844 out_now:
6845         if (create_lock_on) {
6846                 SCTP_ASOC_CREATE_UNLOCK(inp);
6847         }
6848         SCTP_INP_DECR_REF(inp);
6849         return (error);
6850 }
6851
6852 #endif
6853
6854 int
6855 sctp_listen(struct socket *so, int backlog, struct thread *p)
6856 {
6857         /*
6858          * Note this module depends on the protocol processing being called
6859          * AFTER any socket level flags and backlog are applied to the
6860          * socket. The traditional way that the socket flags are applied is
6861          * AFTER protocol processing. We have made a change to the
6862          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6863          * place if the socket API for SCTP is to work properly.
6864          */
6865
6866         int error = 0;
6867         struct sctp_inpcb *inp;
6868
6869         inp = (struct sctp_inpcb *)so->so_pcb;
6870         if (inp == NULL) {
6871                 /* I made the same as TCP since we are not setup? */
6872                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6873                 return (ECONNRESET);
6874         }
6875         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6876                 /* See if we have a listener */
6877                 struct sctp_inpcb *tinp;
6878                 union sctp_sockstore store;
6879
6880                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6881                         /* not bound all */
6882                         struct sctp_laddr *laddr;
6883
6884                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6885                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6886                                 switch (store.sa.sa_family) {
6887 #ifdef INET
6888                                 case AF_INET:
6889                                         store.sin.sin_port = inp->sctp_lport;
6890                                         break;
6891 #endif
6892 #ifdef INET6
6893                                 case AF_INET6:
6894                                         store.sin6.sin6_port = inp->sctp_lport;
6895                                         break;
6896 #endif
6897                                 default:
6898                                         break;
6899                                 }
6900                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6901                                 if (tinp && (tinp != inp) &&
6902                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6903                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6904                                     (tinp->sctp_socket->so_qlimit)) {
6905                                         /*
6906                                          * we have a listener already and
6907                                          * its not this inp.
6908                                          */
6909                                         SCTP_INP_DECR_REF(tinp);
6910                                         return (EADDRINUSE);
6911                                 } else if (tinp) {
6912                                         SCTP_INP_DECR_REF(tinp);
6913                                 }
6914                         }
6915                 } else {
6916                         /* Setup a local addr bound all */
6917                         memset(&store, 0, sizeof(store));
6918 #ifdef INET6
6919                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6920                                 store.sa.sa_family = AF_INET6;
6921                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6922                         }
6923 #endif
6924 #ifdef INET
6925                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6926                                 store.sa.sa_family = AF_INET;
6927                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6928                         }
6929 #endif
6930                         switch (store.sa.sa_family) {
6931 #ifdef INET
6932                         case AF_INET:
6933                                 store.sin.sin_port = inp->sctp_lport;
6934                                 break;
6935 #endif
6936 #ifdef INET6
6937                         case AF_INET6:
6938                                 store.sin6.sin6_port = inp->sctp_lport;
6939                                 break;
6940 #endif
6941                         default:
6942                                 break;
6943                         }
6944                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6945                         if (tinp && (tinp != inp) &&
6946                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6947                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6948                             (tinp->sctp_socket->so_qlimit)) {
6949                                 /*
6950                                  * we have a listener already and its not
6951                                  * this inp.
6952                                  */
6953                                 SCTP_INP_DECR_REF(tinp);
6954                                 return (EADDRINUSE);
6955                         } else if (tinp) {
6956                                 SCTP_INP_DECR_REF(tinp);
6957                         }
6958                 }
6959         }
6960         SCTP_INP_RLOCK(inp);
6961 #ifdef SCTP_LOCK_LOGGING
6962         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6963                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6964         }
6965 #endif
6966         SOCK_LOCK(so);
6967         error = solisten_proto_check(so);
6968         SOCK_UNLOCK(so);
6969         if (error) {
6970                 SCTP_INP_RUNLOCK(inp);
6971                 return (error);
6972         }
6973         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6974             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6975                 /*
6976                  * The unlucky case - We are in the tcp pool with this guy.
6977                  * - Someone else is in the main inp slot. - We must move
6978                  * this guy (the listener) to the main slot - We must then
6979                  * move the guy that was listener to the TCP Pool.
6980                  */
6981                 if (sctp_swap_inpcb_for_listen(inp)) {
6982                         SCTP_INP_RUNLOCK(inp);
6983                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6984                         return (EADDRINUSE);
6985                 }
6986         }
6987         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6988             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6989                 /* We are already connected AND the TCP model */
6990                 SCTP_INP_RUNLOCK(inp);
6991                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6992                 return (EADDRINUSE);
6993         }
6994         SCTP_INP_RUNLOCK(inp);
6995         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6996                 /* We must do a bind. */
6997                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6998                         /* bind error, probably perm */
6999                         return (error);
7000                 }
7001         }
7002         SOCK_LOCK(so);
7003         /* It appears for 7.0 and on, we must always call this. */
7004         solisten_proto(so, backlog);
7005         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7006                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7007                 so->so_options &= ~SO_ACCEPTCONN;
7008         }
7009         if (backlog == 0) {
7010                 /* turning off listen */
7011                 so->so_options &= ~SO_ACCEPTCONN;
7012         }
7013         SOCK_UNLOCK(so);
7014         return (error);
7015 }
7016
7017 static int sctp_defered_wakeup_cnt = 0;
7018
7019 int
7020 sctp_accept(struct socket *so, struct sockaddr **addr)
7021 {
7022         struct sctp_tcb *stcb;
7023         struct sctp_inpcb *inp;
7024         union sctp_sockstore store;
7025
7026 #ifdef INET6
7027         int error;
7028
7029 #endif
7030         inp = (struct sctp_inpcb *)so->so_pcb;
7031
7032         if (inp == NULL) {
7033                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7034                 return (ECONNRESET);
7035         }
7036         SCTP_INP_RLOCK(inp);
7037         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7038                 SCTP_INP_RUNLOCK(inp);
7039                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7040                 return (EOPNOTSUPP);
7041         }
7042         if (so->so_state & SS_ISDISCONNECTED) {
7043                 SCTP_INP_RUNLOCK(inp);
7044                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7045                 return (ECONNABORTED);
7046         }
7047         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7048         if (stcb == NULL) {
7049                 SCTP_INP_RUNLOCK(inp);
7050                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7051                 return (ECONNRESET);
7052         }
7053         SCTP_TCB_LOCK(stcb);
7054         SCTP_INP_RUNLOCK(inp);
7055         store = stcb->asoc.primary_destination->ro._l_addr;
7056         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7057         SCTP_TCB_UNLOCK(stcb);
7058         switch (store.sa.sa_family) {
7059 #ifdef INET
7060         case AF_INET:
7061                 {
7062                         struct sockaddr_in *sin;
7063
7064                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7065                         if (sin == NULL)
7066                                 return (ENOMEM);
7067                         sin->sin_family = AF_INET;
7068                         sin->sin_len = sizeof(*sin);
7069                         sin->sin_port = store.sin.sin_port;
7070                         sin->sin_addr = store.sin.sin_addr;
7071                         *addr = (struct sockaddr *)sin;
7072                         break;
7073                 }
7074 #endif
7075 #ifdef INET6
7076         case AF_INET6:
7077                 {
7078                         struct sockaddr_in6 *sin6;
7079
7080                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7081                         if (sin6 == NULL)
7082                                 return (ENOMEM);
7083                         sin6->sin6_family = AF_INET6;
7084                         sin6->sin6_len = sizeof(*sin6);
7085                         sin6->sin6_port = store.sin6.sin6_port;
7086                         sin6->sin6_addr = store.sin6.sin6_addr;
7087                         if ((error = sa6_recoverscope(sin6)) != 0) {
7088                                 SCTP_FREE_SONAME(sin6);
7089                                 return (error);
7090                         }
7091                         *addr = (struct sockaddr *)sin6;
7092                         break;
7093                 }
7094 #endif
7095         default:
7096                 /* TSNH */
7097                 break;
7098         }
7099         /* Wake any delayed sleep action */
7100         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7101                 SCTP_INP_WLOCK(inp);
7102                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7103                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7104                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7105                         SCTP_INP_WUNLOCK(inp);
7106                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7107                         if (sowriteable(inp->sctp_socket)) {
7108                                 sowwakeup_locked(inp->sctp_socket);
7109                         } else {
7110                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7111                         }
7112                         SCTP_INP_WLOCK(inp);
7113                 }
7114                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7115                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7116                         SCTP_INP_WUNLOCK(inp);
7117                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7118                         if (soreadable(inp->sctp_socket)) {
7119                                 sctp_defered_wakeup_cnt++;
7120                                 sorwakeup_locked(inp->sctp_socket);
7121                         } else {
7122                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7123                         }
7124                         SCTP_INP_WLOCK(inp);
7125                 }
7126                 SCTP_INP_WUNLOCK(inp);
7127         }
7128         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7129                 SCTP_TCB_LOCK(stcb);
7130                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
7131         }
7132         return (0);
7133 }
7134
7135 #ifdef INET
7136 int
7137 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7138 {
7139         struct sockaddr_in *sin;
7140         uint32_t vrf_id;
7141         struct sctp_inpcb *inp;
7142         struct sctp_ifa *sctp_ifa;
7143
7144         /*
7145          * Do the malloc first in case it blocks.
7146          */
7147         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7148         if (sin == NULL)
7149                 return (ENOMEM);
7150         sin->sin_family = AF_INET;
7151         sin->sin_len = sizeof(*sin);
7152         inp = (struct sctp_inpcb *)so->so_pcb;
7153         if (!inp) {
7154                 SCTP_FREE_SONAME(sin);
7155                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7156                 return (ECONNRESET);
7157         }
7158         SCTP_INP_RLOCK(inp);
7159         sin->sin_port = inp->sctp_lport;
7160         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7161                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7162                         struct sctp_tcb *stcb;
7163                         struct sockaddr_in *sin_a;
7164                         struct sctp_nets *net;
7165                         int fnd;
7166
7167                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7168                         if (stcb == NULL) {
7169                                 goto notConn;
7170                         }
7171                         fnd = 0;
7172                         sin_a = NULL;
7173                         SCTP_TCB_LOCK(stcb);
7174                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7175                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7176                                 if (sin_a == NULL)
7177                                         /* this will make coverity happy */
7178                                         continue;
7179
7180                                 if (sin_a->sin_family == AF_INET) {
7181                                         fnd = 1;
7182                                         break;
7183                                 }
7184                         }
7185                         if ((!fnd) || (sin_a == NULL)) {
7186                                 /* punt */
7187                                 SCTP_TCB_UNLOCK(stcb);
7188                                 goto notConn;
7189                         }
7190                         vrf_id = inp->def_vrf_id;
7191                         sctp_ifa = sctp_source_address_selection(inp,
7192                             stcb,
7193                             (sctp_route_t *) & net->ro,
7194                             net, 0, vrf_id);
7195                         if (sctp_ifa) {
7196                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7197                                 sctp_free_ifa(sctp_ifa);
7198                         }
7199                         SCTP_TCB_UNLOCK(stcb);
7200                 } else {
7201                         /* For the bound all case you get back 0 */
7202         notConn:
7203                         sin->sin_addr.s_addr = 0;
7204                 }
7205
7206         } else {
7207                 /* Take the first IPv4 address in the list */
7208                 struct sctp_laddr *laddr;
7209                 int fnd = 0;
7210
7211                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7212                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7213                                 struct sockaddr_in *sin_a;
7214
7215                                 sin_a = &laddr->ifa->address.sin;
7216                                 sin->sin_addr = sin_a->sin_addr;
7217                                 fnd = 1;
7218                                 break;
7219                         }
7220                 }
7221                 if (!fnd) {
7222                         SCTP_FREE_SONAME(sin);
7223                         SCTP_INP_RUNLOCK(inp);
7224                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7225                         return (ENOENT);
7226                 }
7227         }
7228         SCTP_INP_RUNLOCK(inp);
7229         (*addr) = (struct sockaddr *)sin;
7230         return (0);
7231 }
7232
7233 int
7234 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7235 {
7236         struct sockaddr_in *sin;
7237         int fnd;
7238         struct sockaddr_in *sin_a;
7239         struct sctp_inpcb *inp;
7240         struct sctp_tcb *stcb;
7241         struct sctp_nets *net;
7242
7243         /* Do the malloc first in case it blocks. */
7244         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7245         if (sin == NULL)
7246                 return (ENOMEM);
7247         sin->sin_family = AF_INET;
7248         sin->sin_len = sizeof(*sin);
7249
7250         inp = (struct sctp_inpcb *)so->so_pcb;
7251         if ((inp == NULL) ||
7252             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7253                 /* UDP type and listeners will drop out here */
7254                 SCTP_FREE_SONAME(sin);
7255                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7256                 return (ENOTCONN);
7257         }
7258         SCTP_INP_RLOCK(inp);
7259         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7260         if (stcb) {
7261                 SCTP_TCB_LOCK(stcb);
7262         }
7263         SCTP_INP_RUNLOCK(inp);
7264         if (stcb == NULL) {
7265                 SCTP_FREE_SONAME(sin);
7266                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7267                 return (ECONNRESET);
7268         }
7269         fnd = 0;
7270         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7271                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7272                 if (sin_a->sin_family == AF_INET) {
7273                         fnd = 1;
7274                         sin->sin_port = stcb->rport;
7275                         sin->sin_addr = sin_a->sin_addr;
7276                         break;
7277                 }
7278         }
7279         SCTP_TCB_UNLOCK(stcb);
7280         if (!fnd) {
7281                 /* No IPv4 address */
7282                 SCTP_FREE_SONAME(sin);
7283                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7284                 return (ENOENT);
7285         }
7286         (*addr) = (struct sockaddr *)sin;
7287         return (0);
7288 }
7289
7290 struct pr_usrreqs sctp_usrreqs = {
7291         .pru_abort = sctp_abort,
7292         .pru_accept = sctp_accept,
7293         .pru_attach = sctp_attach,
7294         .pru_bind = sctp_bind,
7295         .pru_connect = sctp_connect,
7296         .pru_control = in_control,
7297         .pru_close = sctp_close,
7298         .pru_detach = sctp_close,
7299         .pru_sopoll = sopoll_generic,
7300         .pru_flush = sctp_flush,
7301         .pru_disconnect = sctp_disconnect,
7302         .pru_listen = sctp_listen,
7303         .pru_peeraddr = sctp_peeraddr,
7304         .pru_send = sctp_sendm,
7305         .pru_shutdown = sctp_shutdown,
7306         .pru_sockaddr = sctp_ingetaddr,
7307         .pru_sosend = sctp_sosend,
7308         .pru_soreceive = sctp_soreceive
7309 };
7310
7311 #endif