sys/netinet/sctp_usrreq.c

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