sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2011, 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 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37 #include <netinet/sctp_os.h>
  38 #include <sys/proc.h>
  39 #include <netinet/sctp_pcb.h>
  40 #include <netinet/sctp_header.h>
  41 #include <netinet/sctp_var.h>
  42 #if defined(INET6)
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  90 #endif
  91
  92
  93 }
  94
  95 void
  96 sctp_finish(void)
  97 {
  98         sctp_pcb_finish();
  99 }
 100
 101
 102
 103 void
 104 sctp_pathmtu_adjustment(struct sctp_inpcb *inp,
 105     struct sctp_tcb *stcb,
 106     struct sctp_nets *net,
 107     uint16_t nxtsz)
 108 {
 109         struct sctp_tmit_chunk *chk;
 110         uint16_t overhead;
 111
 112         /* Adjust that too */
 113         stcb->asoc.smallest_mtu = nxtsz;
 114         /* now off to subtract IP_DF flag if needed */
 115         overhead = IP_HDR_SIZE;
 116         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 117                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 118         }
 119         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 120                 if ((chk->send_size + overhead) > nxtsz) {
 121                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 122                 }
 123         }
 124         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 125                 if ((chk->send_size + overhead) > nxtsz) {
 126                         /*
 127                          * For this guy we also mark for immediate resend
 128                          * since we sent to big of chunk
 129                          */
 130                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 131                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 132                                 sctp_flight_size_decrease(chk);
 133                                 sctp_total_flight_decrease(stcb, chk);
 134                         }
 135                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 136                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 137                         }
 138                         chk->sent = SCTP_DATAGRAM_RESEND;
 139                         chk->rec.data.doing_fast_retransmit = 0;
 140                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 141                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 142                                     chk->whoTo->flight_size,
 143                                     chk->book_size,
 144                                     (uintptr_t) chk->whoTo,
 145                                     chk->rec.data.TSN_seq);
 146                         }
 147                         /* Clear any time so NO RTT is being done */
 148                         chk->do_rtt = 0;
 149                 }
 150         }
 151 }
 152
 153 #ifdef INET
 154 static void
 155 sctp_notify_mbuf(struct sctp_inpcb *inp,
 156     struct sctp_tcb *stcb,
 157     struct sctp_nets *net,
 158     struct ip *ip,
 159     struct sctphdr *sh)
 160 {
 161         struct icmp *icmph;
 162         int totsz, tmr_stopped = 0;
 163         uint16_t nxtsz;
 164
 165         /* protection */
 166         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 167             (ip == NULL) || (sh == NULL)) {
 168                 if (stcb != NULL) {
 169                         SCTP_TCB_UNLOCK(stcb);
 170                 }
 171                 return;
 172         }
 173         /* First job is to verify the vtag matches what I would send */
 174         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 175                 SCTP_TCB_UNLOCK(stcb);
 176                 return;
 177         }
 178         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 179             sizeof(struct ip)));
 180         if (icmph->icmp_type != ICMP_UNREACH) {
 181                 /* We only care about unreachable */
 182                 SCTP_TCB_UNLOCK(stcb);
 183                 return;
 184         }
 185         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 186                 /* not a unreachable message due to frag. */
 187                 SCTP_TCB_UNLOCK(stcb);
 188                 return;
 189         }
 190         totsz = ip->ip_len;
 191
 192         nxtsz = ntohs(icmph->icmp_nextmtu);
 193         if (nxtsz == 0) {
 194                 /*
 195                  * old type router that does not tell us what the next size
 196                  * mtu is. Rats we will have to guess (in a educated fashion
 197                  * of course)
 198                  */
 199                 nxtsz = sctp_get_prev_mtu(totsz);
 200         }
 201         /* Stop any PMTU timer */
 202         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 203                 tmr_stopped = 1;
 204                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 205                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 206         }
 207         /* Adjust destination size limit */
 208         if (net->mtu > nxtsz) {
 209                 net->mtu = nxtsz;
 210                 if (net->port) {
 211                         net->mtu -= sizeof(struct udphdr);
 212                 }
 213         }
 214         /* now what about the ep? */
 215         if (stcb->asoc.smallest_mtu > nxtsz) {
 216                 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz);
 217         }
 218         if (tmr_stopped)
 219                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 220
 221         SCTP_TCB_UNLOCK(stcb);
 222 }
 223
 224 #endif
 225
 226 void
 227 sctp_notify(struct sctp_inpcb *inp,
 228     struct ip *ip,
 229     struct sctphdr *sh,
 230     struct sockaddr *to,
 231     struct sctp_tcb *stcb,
 232     struct sctp_nets *net)
 233 {
 234 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 235         struct socket *so;
 236
 237 #endif
 238         /* protection */
 239         int reason;
 240         struct icmp *icmph;
 241
 242
 243         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 244             (sh == NULL) || (to == NULL)) {
 245                 if (stcb)
 246                         SCTP_TCB_UNLOCK(stcb);
 247                 return;
 248         }
 249         /* First job is to verify the vtag matches what I would send */
 250         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 251                 SCTP_TCB_UNLOCK(stcb);
 252                 return;
 253         }
 254         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 255             sizeof(struct ip)));
 256         if (icmph->icmp_type != ICMP_UNREACH) {
 257                 /* We only care about unreachable */
 258                 SCTP_TCB_UNLOCK(stcb);
 259                 return;
 260         }
 261         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 262             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 263             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 264             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 265             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 266             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 267             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 268             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 269
 270                 /*
 271                  * Hmm reachablity problems we must examine closely. If its
 272                  * not reachable, we may have lost a network. Or if there is
 273                  * NO protocol at the other end named SCTP. well we consider
 274                  * it a OOTB abort.
 275                  */
 276                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 277                         /* Ok that destination is NOT reachable */
 278                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 279                         net->dest_state &= ~SCTP_ADDR_PF;
 280                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 281                             stcb, SCTP_FAILED_THRESHOLD,
 282                             (void *)net, SCTP_SO_NOT_LOCKED);
 283                 }
 284                 SCTP_TCB_UNLOCK(stcb);
 285         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 286             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 287                 /*
 288                  * Here the peer is either playing tricks on us, including
 289                  * an address that belongs to someone who does not support
 290                  * SCTP OR was a userland implementation that shutdown and
 291                  * now is dead. In either case treat it like a OOTB abort
 292                  * with no TCB
 293                  */
 294                 reason = SCTP_PEER_FAULTY;
 295                 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
 296 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 297                 so = SCTP_INP_SO(inp);
 298                 atomic_add_int(&stcb->asoc.refcnt, 1);
 299                 SCTP_TCB_UNLOCK(stcb);
 300                 SCTP_SOCKET_LOCK(so, 1);
 301                 SCTP_TCB_LOCK(stcb);
 302                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 303 #endif
 304                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 305 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 306                 SCTP_SOCKET_UNLOCK(so, 1);
 307                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 308 #endif
 309                 /* no need to unlock here, since the TCB is gone */
 310         } else {
 311                 SCTP_TCB_UNLOCK(stcb);
 312         }
 313 }
 314
 315 #ifdef INET
 316 void
 317 sctp_ctlinput(cmd, sa, vip)
 318         int cmd;
 319         struct sockaddr *sa;
 320         void *vip;
 321 {
 322         struct ip *ip = vip;
 323         struct sctphdr *sh;
 324         uint32_t vrf_id;
 325
 326         /* FIX, for non-bsd is this right? */
 327         vrf_id = SCTP_DEFAULT_VRFID;
 328         if (sa->sa_family != AF_INET ||
 329             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 330                 return;
 331         }
 332         if (PRC_IS_REDIRECT(cmd)) {
 333                 ip = 0;
 334         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 335                 return;
 336         }
 337         if (ip) {
 338                 struct sctp_inpcb *inp = NULL;
 339                 struct sctp_tcb *stcb = NULL;
 340                 struct sctp_nets *net = NULL;
 341                 struct sockaddr_in to, from;
 342
 343                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 344                 bzero(&to, sizeof(to));
 345                 bzero(&from, sizeof(from));
 346                 from.sin_family = to.sin_family = AF_INET;
 347                 from.sin_len = to.sin_len = sizeof(to);
 348                 from.sin_port = sh->src_port;
 349                 from.sin_addr = ip->ip_src;
 350                 to.sin_port = sh->dest_port;
 351                 to.sin_addr = ip->ip_dst;
 352
 353                 /*
 354                  * 'to' holds the dest of the packet that failed to be sent.
 355                  * 'from' holds our local endpoint address. Thus we reverse
 356                  * the to and the from in the lookup.
 357                  */
 358                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
 359                     (struct sockaddr *)&to,
 360                     &inp, &net, 1, vrf_id);
 361                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 362                         if (cmd != PRC_MSGSIZE) {
 363                                 sctp_notify(inp, ip, sh,
 364                                     (struct sockaddr *)&to, stcb,
 365                                     net);
 366                         } else {
 367                                 /* handle possible ICMP size messages */
 368                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 369                         }
 370                 } else {
 371                         if ((stcb == NULL) && (inp != NULL)) {
 372                                 /* reduce ref-count */
 373                                 SCTP_INP_WLOCK(inp);
 374                                 SCTP_INP_DECR_REF(inp);
 375                                 SCTP_INP_WUNLOCK(inp);
 376                         }
 377                         if (stcb) {
 378                                 SCTP_TCB_UNLOCK(stcb);
 379                         }
 380                 }
 381         }
 382         return;
 383 }
 384
 385 #endif
 386
 387 static int
 388 sctp_getcred(SYSCTL_HANDLER_ARGS)
 389 {
 390         struct xucred xuc;
 391         struct sockaddr_in addrs[2];
 392         struct sctp_inpcb *inp;
 393         struct sctp_nets *net;
 394         struct sctp_tcb *stcb;
 395         int error;
 396         uint32_t vrf_id;
 397
 398         /* FIX, for non-bsd is this right? */
 399         vrf_id = SCTP_DEFAULT_VRFID;
 400
 401         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 402
 403         if (error)
 404                 return (error);
 405
 406         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 407         if (error)
 408                 return (error);
 409
 410         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
 411             sintosa(&addrs[1]),
 412             &inp, &net, 1, vrf_id);
 413         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 414                 if ((inp != NULL) && (stcb == NULL)) {
 415                         /* reduce ref-count */
 416                         SCTP_INP_WLOCK(inp);
 417                         SCTP_INP_DECR_REF(inp);
 418                         goto cred_can_cont;
 419                 }
 420                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 421                 error = ENOENT;
 422                 goto out;
 423         }
 424         SCTP_TCB_UNLOCK(stcb);
 425         /*
 426          * We use the write lock here, only since in the error leg we need
 427          * it. If we used RLOCK, then we would have to
 428          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 429          * Better to use higher wlock.
 430          */
 431         SCTP_INP_WLOCK(inp);
 432 cred_can_cont:
 433         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 434         if (error) {
 435                 SCTP_INP_WUNLOCK(inp);
 436                 goto out;
 437         }
 438         cru2x(inp->sctp_socket->so_cred, &xuc);
 439         SCTP_INP_WUNLOCK(inp);
 440         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 441 out:
 442         return (error);
 443 }
 444
 445 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 446     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 447
 448
 449 #ifdef INET
 450 static void
 451 sctp_abort(struct socket *so)
 452 {
 453         struct sctp_inpcb *inp;
 454         uint32_t flags;
 455
 456         inp = (struct sctp_inpcb *)so->so_pcb;
 457         if (inp == 0) {
 458                 return;
 459         }
 460 sctp_must_try_again:
 461         flags = inp->sctp_flags;
 462 #ifdef SCTP_LOG_CLOSING
 463         sctp_log_closing(inp, NULL, 17);
 464 #endif
 465         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 466             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 467 #ifdef SCTP_LOG_CLOSING
 468                 sctp_log_closing(inp, NULL, 16);
 469 #endif
 470                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 471                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 472                 SOCK_LOCK(so);
 473                 SCTP_SB_CLEAR(so->so_snd);
 474                 /*
 475                  * same for the rcv ones, they are only here for the
 476                  * accounting/select.
 477                  */
 478                 SCTP_SB_CLEAR(so->so_rcv);
 479
 480                 /* Now null out the reference, we are completely detached. */
 481                 so->so_pcb = NULL;
 482                 SOCK_UNLOCK(so);
 483         } else {
 484                 flags = inp->sctp_flags;
 485                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 486                         goto sctp_must_try_again;
 487                 }
 488         }
 489         return;
 490 }
 491
 492 static int
 493 sctp_attach(struct socket *so, int proto, struct thread *p)
 494 {
 495         struct sctp_inpcb *inp;
 496         struct inpcb *ip_inp;
 497         int error;
 498         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 499
 500 #ifdef IPSEC
 501         uint32_t flags;
 502
 503 #endif
 504
 505         inp = (struct sctp_inpcb *)so->so_pcb;
 506         if (inp != 0) {
 507                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 508                 return EINVAL;
 509         }
 510         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 511                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 512                 if (error) {
 513                         return error;
 514                 }
 515         }
 516         error = sctp_inpcb_alloc(so, vrf_id);
 517         if (error) {
 518                 return error;
 519         }
 520         inp = (struct sctp_inpcb *)so->so_pcb;
 521         SCTP_INP_WLOCK(inp);
 522         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 523         ip_inp = &inp->ip_inp.inp;
 524         ip_inp->inp_vflag |= INP_IPV4;
 525         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 526 #ifdef IPSEC
 527         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 528 #ifdef SCTP_LOG_CLOSING
 529         sctp_log_closing(inp, NULL, 17);
 530 #endif
 531         if (error != 0) {
 532 try_again:
 533                 flags = inp->sctp_flags;
 534                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 535                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 536 #ifdef SCTP_LOG_CLOSING
 537                         sctp_log_closing(inp, NULL, 15);
 538 #endif
 539                         SCTP_INP_WUNLOCK(inp);
 540                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 541                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 542                 } else {
 543                         flags = inp->sctp_flags;
 544                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 545                                 goto try_again;
 546                         } else {
 547                                 SCTP_INP_WUNLOCK(inp);
 548                         }
 549                 }
 550                 return error;
 551         }
 552 #endif                          /* IPSEC */
 553         SCTP_INP_WUNLOCK(inp);
 554         return 0;
 555 }
 556
 557 static int
 558 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 559 {
 560         struct sctp_inpcb *inp = NULL;
 561         int error;
 562
 563 #ifdef INET
 564         if (addr && addr->sa_family != AF_INET) {
 565                 /* must be a v4 address! */
 566                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 567                 return EINVAL;
 568         }
 569 #endif                          /* INET6 */
 570         if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
 571                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 572                 return EINVAL;
 573         }
 574         inp = (struct sctp_inpcb *)so->so_pcb;
 575         if (inp == 0) {
 576                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 577                 return EINVAL;
 578         }
 579         error = sctp_inpcb_bind(so, addr, NULL, p);
 580         return error;
 581 }
 582
 583 #endif
 584 void
 585 sctp_close(struct socket *so)
 586 {
 587         struct sctp_inpcb *inp;
 588         uint32_t flags;
 589
 590         inp = (struct sctp_inpcb *)so->so_pcb;
 591         if (inp == 0)
 592                 return;
 593
 594         /*
 595          * Inform all the lower layer assoc that we are done.
 596          */
 597 sctp_must_try_again:
 598         flags = inp->sctp_flags;
 599 #ifdef SCTP_LOG_CLOSING
 600         sctp_log_closing(inp, NULL, 17);
 601 #endif
 602         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 603             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 604                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 605                     (so->so_rcv.sb_cc > 0)) {
 606 #ifdef SCTP_LOG_CLOSING
 607                         sctp_log_closing(inp, NULL, 13);
 608 #endif
 609                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 610                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 611                 } else {
 612 #ifdef SCTP_LOG_CLOSING
 613                         sctp_log_closing(inp, NULL, 14);
 614 #endif
 615                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 616                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 617                 }
 618                 /*
 619                  * The socket is now detached, no matter what the state of
 620                  * the SCTP association.
 621                  */
 622                 SOCK_LOCK(so);
 623                 SCTP_SB_CLEAR(so->so_snd);
 624                 /*
 625                  * same for the rcv ones, they are only here for the
 626                  * accounting/select.
 627                  */
 628                 SCTP_SB_CLEAR(so->so_rcv);
 629
 630                 /* Now null out the reference, we are completely detached. */
 631                 so->so_pcb = NULL;
 632                 SOCK_UNLOCK(so);
 633         } else {
 634                 flags = inp->sctp_flags;
 635                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 636                         goto sctp_must_try_again;
 637                 }
 638         }
 639         return;
 640 }
 641
 642
 643 int
 644 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 645     struct mbuf *control, struct thread *p);
 646
 647
 648 int
 649 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 650     struct mbuf *control, struct thread *p)
 651 {
 652         struct sctp_inpcb *inp;
 653         int error;
 654
 655         inp = (struct sctp_inpcb *)so->so_pcb;
 656         if (inp == 0) {
 657                 if (control) {
 658                         sctp_m_freem(control);
 659                         control = NULL;
 660                 }
 661                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 662                 sctp_m_freem(m);
 663                 return EINVAL;
 664         }
 665         /* Got to have an to address if we are NOT a connected socket */
 666         if ((addr == NULL) &&
 667             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 668             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))
 669             ) {
 670                 goto connected_type;
 671         } else if (addr == NULL) {
 672                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 673                 error = EDESTADDRREQ;
 674                 sctp_m_freem(m);
 675                 if (control) {
 676                         sctp_m_freem(control);
 677                         control = NULL;
 678                 }
 679                 return (error);
 680         }
 681 #ifdef INET6
 682         if (addr->sa_family != AF_INET) {
 683                 /* must be a v4 address! */
 684                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 685                 sctp_m_freem(m);
 686                 if (control) {
 687                         sctp_m_freem(control);
 688                         control = NULL;
 689                 }
 690                 error = EDESTADDRREQ;
 691                 return (error);
 692         }
 693 #endif                          /* INET6 */
 694 connected_type:
 695         /* now what about control */
 696         if (control) {
 697                 if (inp->control) {
 698                         SCTP_PRINTF("huh? control set?\n");
 699                         sctp_m_freem(inp->control);
 700                         inp->control = NULL;
 701                 }
 702                 inp->control = control;
 703         }
 704         /* Place the data */
 705         if (inp->pkt) {
 706                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 707                 inp->pkt_last = m;
 708         } else {
 709                 inp->pkt_last = inp->pkt = m;
 710         }
 711         if (
 712         /* FreeBSD uses a flag passed */
 713             ((flags & PRUS_MORETOCOME) == 0)
 714             ) {
 715                 /*
 716                  * note with the current version this code will only be used
 717                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 718                  * re-defining sosend to use the sctp_sosend. One can
 719                  * optionally switch back to this code (by changing back the
 720                  * definitions) but this is not advisable. This code is used
 721                  * by FreeBSD when sending a file with sendfile() though.
 722                  */
 723                 int ret;
 724
 725                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 726                 inp->pkt = NULL;
 727                 inp->control = NULL;
 728                 return (ret);
 729         } else {
 730                 return (0);
 731         }
 732 }
 733
 734 int
 735 sctp_disconnect(struct socket *so)
 736 {
 737         struct sctp_inpcb *inp;
 738
 739         inp = (struct sctp_inpcb *)so->so_pcb;
 740         if (inp == NULL) {
 741                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 742                 return (ENOTCONN);
 743         }
 744         SCTP_INP_RLOCK(inp);
 745         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 746             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 747                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 748                         /* No connection */
 749                         SCTP_INP_RUNLOCK(inp);
 750                         return (0);
 751                 } else {
 752                         struct sctp_association *asoc;
 753                         struct sctp_tcb *stcb;
 754
 755                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 756                         if (stcb == NULL) {
 757                                 SCTP_INP_RUNLOCK(inp);
 758                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 759                                 return (EINVAL);
 760                         }
 761                         SCTP_TCB_LOCK(stcb);
 762                         asoc = &stcb->asoc;
 763                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 764                                 /* We are about to be freed, out of here */
 765                                 SCTP_TCB_UNLOCK(stcb);
 766                                 SCTP_INP_RUNLOCK(inp);
 767                                 return (0);
 768                         }
 769                         if (((so->so_options & SO_LINGER) &&
 770                             (so->so_linger == 0)) ||
 771                             (so->so_rcv.sb_cc > 0)) {
 772                                 if (SCTP_GET_STATE(asoc) !=
 773                                     SCTP_STATE_COOKIE_WAIT) {
 774                                         /* Left with Data unread */
 775                                         struct mbuf *err;
 776
 777                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
 778                                         if (err) {
 779                                                 /*
 780                                                  * Fill in the user
 781                                                  * initiated abort
 782                                                  */
 783                                                 struct sctp_paramhdr *ph;
 784
 785                                                 ph = mtod(err, struct sctp_paramhdr *);
 786                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 787                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 788                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 789                                         }
 790 #if defined(SCTP_PANIC_ON_ABORT)
 791                                         panic("disconnect does an abort");
 792 #endif
 793                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 794                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 795                                 }
 796                                 SCTP_INP_RUNLOCK(inp);
 797                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 798                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 799                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 800                                 }
 801                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 802                                 /* No unlock tcb assoc is gone */
 803                                 return (0);
 804                         }
 805                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 806                             TAILQ_EMPTY(&asoc->sent_queue) &&
 807                             (asoc->stream_queue_cnt == 0)) {
 808                                 /* there is nothing queued to send, so done */
 809                                 if (asoc->locked_on_sending) {
 810                                         goto abort_anyway;
 811                                 }
 812                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 813                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 814                                         /* only send SHUTDOWN 1st time thru */
 815                                         struct sctp_nets *netp;
 816
 817                                         if (stcb->asoc.alternate) {
 818                                                 netp = stcb->asoc.alternate;
 819                                         } else {
 820                                                 netp = stcb->asoc.primary_destination;
 821                                         }
 822                                         sctp_stop_timers_for_shutdown(stcb);
 823                                         sctp_send_shutdown(stcb, netp);
 824                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 825                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 826                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 827                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 828                                         }
 829                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 830                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 831                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 832                                             stcb->sctp_ep, stcb, netp);
 833                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 834                                             stcb->sctp_ep, stcb, netp);
 835
 836                                 }
 837                         } else {
 838                                 /*
 839                                  * we still got (or just got) data to send,
 840                                  * so set SHUTDOWN_PENDING
 841                                  */
 842                                 /*
 843                                  * XXX sockets draft says that SCTP_EOF
 844                                  * should be sent with no data. currently,
 845                                  * we will allow user data to be sent first
 846                                  * and move to SHUTDOWN-PENDING
 847                                  */
 848                                 struct sctp_nets *netp;
 849
 850                                 if (stcb->asoc.alternate) {
 851                                         netp = stcb->asoc.alternate;
 852                                 } else {
 853                                         netp = stcb->asoc.primary_destination;
 854                                 }
 855
 856                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 857                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 858                                     netp);
 859                                 if (asoc->locked_on_sending) {
 860                                         /* Locked to send out the data */
 861                                         struct sctp_stream_queue_pending *sp;
 862
 863                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 864                                         if (sp == NULL) {
 865                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 866                                                     asoc->locked_on_sending->stream_no);
 867                                         } else {
 868                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 869                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 870                                         }
 871                                 }
 872                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 873                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 874                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 875                                         struct mbuf *op_err;
 876
 877                         abort_anyway:
 878                                         op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
 879                                             0, M_DONTWAIT, 1, MT_DATA);
 880                                         if (op_err) {
 881                                                 /*
 882                                                  * Fill in the user
 883                                                  * initiated abort
 884                                                  */
 885                                                 struct sctp_paramhdr *ph;
 886                                                 uint32_t *ippp;
 887
 888                                                 SCTP_BUF_LEN(op_err) =
 889                                                     (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
 890                                                 ph = mtod(op_err,
 891                                                     struct sctp_paramhdr *);
 892                                                 ph->param_type = htons(
 893                                                     SCTP_CAUSE_USER_INITIATED_ABT);
 894                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
 895                                                 ippp = (uint32_t *) (ph + 1);
 896                                                 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
 897                                         }
 898 #if defined(SCTP_PANIC_ON_ABORT)
 899                                         panic("disconnect does an abort");
 900 #endif
 901
 902                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 903                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 904                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 905                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 906                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 907                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 908                                         }
 909                                         SCTP_INP_RUNLOCK(inp);
 910                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 911                                         return (0);
 912                                 } else {
 913                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 914                                 }
 915                         }
 916                         soisdisconnecting(so);
 917                         SCTP_TCB_UNLOCK(stcb);
 918                         SCTP_INP_RUNLOCK(inp);
 919                         return (0);
 920                 }
 921                 /* not reached */
 922         } else {
 923                 /* UDP model does not support this */
 924                 SCTP_INP_RUNLOCK(inp);
 925                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 926                 return EOPNOTSUPP;
 927         }
 928 }
 929
 930 int
 931 sctp_flush(struct socket *so, int how)
 932 {
 933         /*
 934          * We will just clear out the values and let subsequent close clear
 935          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 936          * they will not be able to read the data, the socket will block
 937          * that from happening.
 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 the 1 to many model this does nothing */
 948         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 949                 SCTP_INP_RUNLOCK(inp);
 950                 return (0);
 951         }
 952         SCTP_INP_RUNLOCK(inp);
 953         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 954                 /*
 955                  * First make sure the sb will be happy, we don't use these
 956                  * except maybe the count
 957                  */
 958                 SCTP_INP_WLOCK(inp);
 959                 SCTP_INP_READ_LOCK(inp);
 960                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 961                 SCTP_INP_READ_UNLOCK(inp);
 962                 SCTP_INP_WUNLOCK(inp);
 963                 so->so_rcv.sb_cc = 0;
 964                 so->so_rcv.sb_mbcnt = 0;
 965                 so->so_rcv.sb_mb = NULL;
 966         }
 967         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 968                 /*
 969                  * First make sure the sb will be happy, we don't use these
 970                  * except maybe the count
 971                  */
 972                 so->so_snd.sb_cc = 0;
 973                 so->so_snd.sb_mbcnt = 0;
 974                 so->so_snd.sb_mb = NULL;
 975
 976         }
 977         return (0);
 978 }
 979
 980 int
 981 sctp_shutdown(struct socket *so)
 982 {
 983         struct sctp_inpcb *inp;
 984
 985         inp = (struct sctp_inpcb *)so->so_pcb;
 986         if (inp == 0) {
 987                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 988                 return EINVAL;
 989         }
 990         SCTP_INP_RLOCK(inp);
 991         /* For UDP model this is a invalid call */
 992         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 993                 /* Restore the flags that the soshutdown took away. */
 994                 SOCKBUF_LOCK(&so->so_rcv);
 995                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 996                 SOCKBUF_UNLOCK(&so->so_rcv);
 997                 /* This proc will wakeup for read and do nothing (I hope) */
 998                 SCTP_INP_RUNLOCK(inp);
 999                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1000                 return (EOPNOTSUPP);
1001         }
1002         /*
1003          * Ok if we reach here its the TCP model and it is either a SHUT_WR
1004          * or SHUT_RDWR. This means we put the shutdown flag against it.
1005          */
1006         {
1007                 struct sctp_tcb *stcb;
1008                 struct sctp_association *asoc;
1009
1010                 if ((so->so_state &
1011                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
1012                         SCTP_INP_RUNLOCK(inp);
1013                         return (ENOTCONN);
1014                 }
1015                 socantsendmore(so);
1016
1017                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1018                 if (stcb == NULL) {
1019                         /*
1020                          * Ok we hit the case that the shutdown call was
1021                          * made after an abort or something. Nothing to do
1022                          * now.
1023                          */
1024                         SCTP_INP_RUNLOCK(inp);
1025                         return (0);
1026                 }
1027                 SCTP_TCB_LOCK(stcb);
1028                 asoc = &stcb->asoc;
1029                 if (TAILQ_EMPTY(&asoc->send_queue) &&
1030                     TAILQ_EMPTY(&asoc->sent_queue) &&
1031                     (asoc->stream_queue_cnt == 0)) {
1032                         if (asoc->locked_on_sending) {
1033                                 goto abort_anyway;
1034                         }
1035                         /* there is nothing queued to send, so I'm done... */
1036                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1037                                 /* only send SHUTDOWN the first time through */
1038                                 struct sctp_nets *netp;
1039
1040                                 if (stcb->asoc.alternate) {
1041                                         netp = stcb->asoc.alternate;
1042                                 } else {
1043                                         netp = stcb->asoc.primary_destination;
1044                                 }
1045                                 sctp_stop_timers_for_shutdown(stcb);
1046                                 sctp_send_shutdown(stcb, netp);
1047                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1048                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1049                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1050                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1051                                 }
1052                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1053                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1054                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1055                                     stcb->sctp_ep, stcb, netp);
1056                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1057                                     stcb->sctp_ep, stcb, netp);
1058                         }
1059                 } else {
1060                         /*
1061                          * we still got (or just got) data to send, so set
1062                          * SHUTDOWN_PENDING
1063                          */
1064                         struct sctp_nets *netp;
1065
1066                         if (stcb->asoc.alternate) {
1067                                 netp = stcb->asoc.alternate;
1068                         } else {
1069                                 netp = stcb->asoc.primary_destination;
1070                         }
1071
1072                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1073                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1074                             netp);
1075
1076                         if (asoc->locked_on_sending) {
1077                                 /* Locked to send out the data */
1078                                 struct sctp_stream_queue_pending *sp;
1079
1080                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1081                                 if (sp == NULL) {
1082                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1083                                             asoc->locked_on_sending->stream_no);
1084                                 } else {
1085                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1086                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1087                                         }
1088                                 }
1089                         }
1090                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1091                             TAILQ_EMPTY(&asoc->sent_queue) &&
1092                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1093                                 struct mbuf *op_err;
1094
1095                 abort_anyway:
1096                                 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1097                                     0, M_DONTWAIT, 1, MT_DATA);
1098                                 if (op_err) {
1099                                         /* Fill in the user initiated abort */
1100                                         struct sctp_paramhdr *ph;
1101                                         uint32_t *ippp;
1102
1103                                         SCTP_BUF_LEN(op_err) =
1104                                             sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1105                                         ph = mtod(op_err,
1106                                             struct sctp_paramhdr *);
1107                                         ph->param_type = htons(
1108                                             SCTP_CAUSE_USER_INITIATED_ABT);
1109                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
1110                                         ippp = (uint32_t *) (ph + 1);
1111                                         *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1112                                 }
1113 #if defined(SCTP_PANIC_ON_ABORT)
1114                                 panic("shutdown does an abort");
1115 #endif
1116                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1117                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1118                                     SCTP_RESPONSE_TO_USER_REQ,
1119                                     op_err, SCTP_SO_LOCKED);
1120                                 goto skip_unlock;
1121                         } else {
1122                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1123                         }
1124                 }
1125                 SCTP_TCB_UNLOCK(stcb);
1126         }
1127 skip_unlock:
1128         SCTP_INP_RUNLOCK(inp);
1129         return 0;
1130 }
1131
1132 /*
1133  * copies a "user" presentable address and removes embedded scope, etc.
1134  * returns 0 on success, 1 on error
1135  */
1136 static uint32_t
1137 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1138 {
1139 #ifdef INET6
1140         struct sockaddr_in6 lsa6;
1141
1142         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1143             &lsa6);
1144 #endif
1145         memcpy(ss, sa, sa->sa_len);
1146         return (0);
1147 }
1148
1149
1150
1151 /*
1152  * NOTE: assumes addr lock is held
1153  */
1154 static size_t
1155 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1156     struct sctp_tcb *stcb,
1157     size_t limit,
1158     struct sockaddr_storage *sas,
1159     uint32_t vrf_id)
1160 {
1161         struct sctp_ifn *sctp_ifn;
1162         struct sctp_ifa *sctp_ifa;
1163         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1164         size_t actual;
1165         int ipv4_addr_legal, ipv6_addr_legal;
1166         struct sctp_vrf *vrf;
1167
1168         actual = 0;
1169         if (limit <= 0)
1170                 return (actual);
1171
1172         if (stcb) {
1173                 /* Turn on all the appropriate scope */
1174                 loopback_scope = stcb->asoc.loopback_scope;
1175                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1176                 local_scope = stcb->asoc.local_scope;
1177                 site_scope = stcb->asoc.site_scope;
1178         } else {
1179                 /* Turn on ALL scope, since we look at the EP */
1180                 loopback_scope = ipv4_local_scope = local_scope =
1181                     site_scope = 1;
1182         }
1183         ipv4_addr_legal = ipv6_addr_legal = 0;
1184         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1185                 ipv6_addr_legal = 1;
1186                 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1187                         ipv4_addr_legal = 1;
1188                 }
1189         } else {
1190                 ipv4_addr_legal = 1;
1191         }
1192         vrf = sctp_find_vrf(vrf_id);
1193         if (vrf == NULL) {
1194                 return (0);
1195         }
1196         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1197                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1198                         if ((loopback_scope == 0) &&
1199                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1200                                 /* Skip loopback if loopback_scope not set */
1201                                 continue;
1202                         }
1203                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1204                                 if (stcb) {
1205                                         /*
1206                                          * For the BOUND-ALL case, the list
1207                                          * associated with a TCB is Always
1208                                          * considered a reverse list.. i.e.
1209                                          * it lists addresses that are NOT
1210                                          * part of the association. If this
1211                                          * is one of those we must skip it.
1212                                          */
1213                                         if (sctp_is_addr_restricted(stcb,
1214                                             sctp_ifa)) {
1215                                                 continue;
1216                                         }
1217                                 }
1218                                 switch (sctp_ifa->address.sa.sa_family) {
1219 #ifdef INET
1220                                 case AF_INET:
1221                                         if (ipv4_addr_legal) {
1222                                                 struct sockaddr_in *sin;
1223
1224                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1225                                                 if (sin->sin_addr.s_addr == 0) {
1226                                                         /*
1227                                                          * we skip
1228                                                          * unspecifed
1229                                                          * addresses
1230                                                          */
1231                                                         continue;
1232                                                 }
1233                                                 if ((ipv4_local_scope == 0) &&
1234                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1235                                                         continue;
1236                                                 }
1237 #ifdef INET6
1238                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1239                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1240                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1241                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1242                                                         actual += sizeof(struct sockaddr_in6);
1243                                                 } else {
1244 #endif
1245                                                         memcpy(sas, sin, sizeof(*sin));
1246                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1247                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1248                                                         actual += sizeof(*sin);
1249 #ifdef INET6
1250                                                 }
1251 #endif
1252                                                 if (actual >= limit) {
1253                                                         return (actual);
1254                                                 }
1255                                         } else {
1256                                                 continue;
1257                                         }
1258                                         break;
1259 #endif
1260 #ifdef INET6
1261                                 case AF_INET6:
1262                                         if (ipv6_addr_legal) {
1263                                                 struct sockaddr_in6 *sin6;
1264
1265                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1266                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1267                                                         /*
1268                                                          * we skip
1269                                                          * unspecifed
1270                                                          * addresses
1271                                                          */
1272                                                         continue;
1273                                                 }
1274                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1275                                                         if (local_scope == 0)
1276                                                                 continue;
1277                                                         if (sin6->sin6_scope_id == 0) {
1278                                                                 if (sa6_recoverscope(sin6) != 0)
1279                                                                         /*
1280                                                                          *
1281                                                                          * bad
1282                                                                          *
1283                                                                          * li
1284                                                                          * nk
1285                                                                          *
1286                                                                          * loc
1287                                                                          * al
1288                                                                          *
1289                                                                          * add
1290                                                                          * re
1291                                                                          * ss
1292                                                                          * */
1293                                                                         continue;
1294                                                         }
1295                                                 }
1296                                                 if ((site_scope == 0) &&
1297                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1298                                                         continue;
1299                                                 }
1300                                                 memcpy(sas, sin6, sizeof(*sin6));
1301                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1302                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1303                                                 actual += sizeof(*sin6);
1304                                                 if (actual >= limit) {
1305                                                         return (actual);
1306                                                 }
1307                                         } else {
1308                                                 continue;
1309                                         }
1310                                         break;
1311 #endif
1312                                 default:
1313                                         /* TSNH */
1314                                         break;
1315                                 }
1316                         }
1317                 }
1318         } else {
1319                 struct sctp_laddr *laddr;
1320
1321                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1322                         if (stcb) {
1323                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1324                                         continue;
1325                                 }
1326                         }
1327                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1328                                 continue;
1329
1330                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1331                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1332                             laddr->ifa->address.sa.sa_len);
1333                         actual += laddr->ifa->address.sa.sa_len;
1334                         if (actual >= limit) {
1335                                 return (actual);
1336                         }
1337                 }
1338         }
1339         return (actual);
1340 }
1341
1342 static size_t
1343 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1344     struct sctp_tcb *stcb,
1345     size_t limit,
1346     struct sockaddr_storage *sas)
1347 {
1348         size_t size = 0;
1349
1350         SCTP_IPI_ADDR_RLOCK();
1351         /* fill up addresses for the endpoint's default vrf */
1352         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1353             inp->def_vrf_id);
1354         SCTP_IPI_ADDR_RUNLOCK();
1355         return (size);
1356 }
1357
1358 /*
1359  * NOTE: assumes addr lock is held
1360  */
1361 static int
1362 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1363 {
1364         int cnt = 0;
1365         struct sctp_vrf *vrf = NULL;
1366
1367         /*
1368          * In both sub-set bound an bound_all cases we return the MAXIMUM
1369          * number of addresses that you COULD get. In reality the sub-set
1370          * bound may have an exclusion list for a given TCB OR in the
1371          * bound-all case a TCB may NOT include the loopback or other
1372          * addresses as well.
1373          */
1374         vrf = sctp_find_vrf(vrf_id);
1375         if (vrf == NULL) {
1376                 return (0);
1377         }
1378         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1379                 struct sctp_ifn *sctp_ifn;
1380                 struct sctp_ifa *sctp_ifa;
1381
1382                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1383                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1384                                 /* Count them if they are the right type */
1385                                 switch (sctp_ifa->address.sa.sa_family) {
1386 #ifdef INET
1387                                 case AF_INET:
1388                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1389                                                 cnt += sizeof(struct sockaddr_in6);
1390                                         else
1391                                                 cnt += sizeof(struct sockaddr_in);
1392                                         break;
1393 #endif
1394 #ifdef INET6
1395                                 case AF_INET6:
1396                                         cnt += sizeof(struct sockaddr_in6);
1397                                         break;
1398 #endif
1399                                 default:
1400                                         break;
1401                                 }
1402                         }
1403                 }
1404         } else {
1405                 struct sctp_laddr *laddr;
1406
1407                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1408                         switch (laddr->ifa->address.sa.sa_family) {
1409 #ifdef INET
1410                         case AF_INET:
1411                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1412                                         cnt += sizeof(struct sockaddr_in6);
1413                                 else
1414                                         cnt += sizeof(struct sockaddr_in);
1415                                 break;
1416 #endif
1417 #ifdef INET6
1418                         case AF_INET6:
1419                                 cnt += sizeof(struct sockaddr_in6);
1420                                 break;
1421 #endif
1422                         default:
1423                                 break;
1424                         }
1425                 }
1426         }
1427         return (cnt);
1428 }
1429
1430 static int
1431 sctp_count_max_addresses(struct sctp_inpcb *inp)
1432 {
1433         int cnt = 0;
1434
1435         SCTP_IPI_ADDR_RLOCK();
1436         /* count addresses for the endpoint's default VRF */
1437         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1438         SCTP_IPI_ADDR_RUNLOCK();
1439         return (cnt);
1440 }
1441
1442 static int
1443 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1444     size_t optsize, void *p, int delay)
1445 {
1446         int error = 0;
1447         int creat_lock_on = 0;
1448         struct sctp_tcb *stcb = NULL;
1449         struct sockaddr *sa;
1450         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1451         uint32_t vrf_id;
1452         int bad_addresses = 0;
1453         sctp_assoc_t *a_id;
1454
1455         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1456
1457         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1458             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1459                 /* We are already connected AND the TCP model */
1460                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1461                 return (EADDRINUSE);
1462         }
1463         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1464             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1465                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1466                 return (EINVAL);
1467         }
1468         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1469                 SCTP_INP_RLOCK(inp);
1470                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1471                 SCTP_INP_RUNLOCK(inp);
1472         }
1473         if (stcb) {
1474                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1475                 return (EALREADY);
1476         }
1477         SCTP_INP_INCR_REF(inp);
1478         SCTP_ASOC_CREATE_LOCK(inp);
1479         creat_lock_on = 1;
1480         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1481             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1482                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1483                 error = EFAULT;
1484                 goto out_now;
1485         }
1486         totaddrp = (int *)optval;
1487         totaddr = *totaddrp;
1488         sa = (struct sockaddr *)(totaddrp + 1);
1489         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1490         if ((stcb != NULL) || bad_addresses) {
1491                 /* Already have or am bring up an association */
1492                 SCTP_ASOC_CREATE_UNLOCK(inp);
1493                 creat_lock_on = 0;
1494                 if (stcb)
1495                         SCTP_TCB_UNLOCK(stcb);
1496                 if (bad_addresses == 0) {
1497                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1498                         error = EALREADY;
1499                 }
1500                 goto out_now;
1501         }
1502 #ifdef INET6
1503         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1504             (num_v6 > 0)) {
1505                 error = EINVAL;
1506                 goto out_now;
1507         }
1508         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1509             (num_v4 > 0)) {
1510                 struct in6pcb *inp6;
1511
1512                 inp6 = (struct in6pcb *)inp;
1513                 if (SCTP_IPV6_V6ONLY(inp6)) {
1514                         /*
1515                          * if IPV6_V6ONLY flag, ignore connections destined
1516                          * to a v4 addr or v4-mapped addr
1517                          */
1518                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1519                         error = EINVAL;
1520                         goto out_now;
1521                 }
1522         }
1523 #endif                          /* INET6 */
1524         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1525             SCTP_PCB_FLAGS_UNBOUND) {
1526                 /* Bind a ephemeral port */
1527                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1528                 if (error) {
1529                         goto out_now;
1530                 }
1531         }
1532         /* FIX ME: do we want to pass in a vrf on the connect call? */
1533         vrf_id = inp->def_vrf_id;
1534
1535
1536         /* We are GOOD to go */
1537         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1538             (struct thread *)p
1539             );
1540         if (stcb == NULL) {
1541                 /* Gak! no memory */
1542                 goto out_now;
1543         }
1544         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1545                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1546                 /* Set the connected flag so we can queue data */
1547                 soisconnecting(so);
1548         }
1549         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1550         /* move to second address */
1551         switch (sa->sa_family) {
1552 #ifdef INET
1553         case AF_INET:
1554                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1555                 break;
1556 #endif
1557 #ifdef INET6
1558         case AF_INET6:
1559                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1560                 break;
1561 #endif
1562         default:
1563                 break;
1564         }
1565
1566         error = 0;
1567         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1568         /* Fill in the return id */
1569         if (error) {
1570                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1571                 goto out_now;
1572         }
1573         a_id = (sctp_assoc_t *) optval;
1574         *a_id = sctp_get_associd(stcb);
1575
1576         /* initialize authentication parameters for the assoc */
1577         sctp_initialize_auth_params(inp, stcb);
1578
1579         if (delay) {
1580                 /* doing delayed connection */
1581                 stcb->asoc.delayed_connection = 1;
1582                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1583         } else {
1584                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1585                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1586         }
1587         SCTP_TCB_UNLOCK(stcb);
1588         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1589                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1590                 /* Set the connected flag so we can queue data */
1591                 soisconnecting(so);
1592         }
1593 out_now:
1594         if (creat_lock_on) {
1595                 SCTP_ASOC_CREATE_UNLOCK(inp);
1596         }
1597         SCTP_INP_DECR_REF(inp);
1598         return error;
1599 }
1600
1601 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1602         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1603             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1604                 SCTP_INP_RLOCK(inp); \
1605                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1606                 if (stcb) { \
1607                         SCTP_TCB_LOCK(stcb); \
1608                 } \
1609                 SCTP_INP_RUNLOCK(inp); \
1610         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1611                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1612                 if (stcb == NULL) { \
1613                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1614                         error = ENOENT; \
1615                         break; \
1616                 } \
1617         } else { \
1618                 stcb = NULL; \
1619         } \
1620   }
1621
1622
1623 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size)  {\
1624         if (size < sizeof(type)) { \
1625                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1626                 error = EINVAL; \
1627                 break; \
1628         } else { \
1629                 destp = (type *)srcp; \
1630         } \
1631       }
1632
1633 static int
1634 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1635     void *p)
1636 {
1637         struct sctp_inpcb *inp = NULL;
1638         int error, val = 0;
1639         struct sctp_tcb *stcb = NULL;
1640
1641         if (optval == NULL) {
1642                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1643                 return (EINVAL);
1644         }
1645         inp = (struct sctp_inpcb *)so->so_pcb;
1646         if (inp == 0) {
1647                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1648                 return EINVAL;
1649         }
1650         error = 0;
1651
1652         switch (optname) {
1653         case SCTP_NODELAY:
1654         case SCTP_AUTOCLOSE:
1655         case SCTP_EXPLICIT_EOR:
1656         case SCTP_AUTO_ASCONF:
1657         case SCTP_DISABLE_FRAGMENTS:
1658         case SCTP_I_WANT_MAPPED_V4_ADDR:
1659         case SCTP_USE_EXT_RCVINFO:
1660                 SCTP_INP_RLOCK(inp);
1661                 switch (optname) {
1662                 case SCTP_DISABLE_FRAGMENTS:
1663                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1664                         break;
1665                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1666                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1667                         break;
1668                 case SCTP_AUTO_ASCONF:
1669                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1670                                 /* only valid for bound all sockets */
1671                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1672                         } else {
1673                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1674                                 error = EINVAL;
1675                                 goto flags_out;
1676                         }
1677                         break;
1678                 case SCTP_EXPLICIT_EOR:
1679                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1680                         break;
1681                 case SCTP_NODELAY:
1682                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1683                         break;
1684                 case SCTP_USE_EXT_RCVINFO:
1685                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1686                         break;
1687                 case SCTP_AUTOCLOSE:
1688                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1689                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1690                         else
1691                                 val = 0;
1692                         break;
1693
1694                 default:
1695                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1696                         error = ENOPROTOOPT;
1697                 }               /* end switch (sopt->sopt_name) */
1698                 if (*optsize < sizeof(val)) {
1699                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1700                         error = EINVAL;
1701                 }
1702 flags_out:
1703                 SCTP_INP_RUNLOCK(inp);
1704                 if (error == 0) {
1705                         /* return the option value */
1706                         *(int *)optval = val;
1707                         *optsize = sizeof(val);
1708                 }
1709                 break;
1710         case SCTP_GET_PACKET_LOG:
1711                 {
1712 #ifdef  SCTP_PACKET_LOGGING
1713                         uint8_t *target;
1714                         int ret;
1715
1716                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1717                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1718                         *optsize = ret;
1719 #else
1720                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1721                         error = EOPNOTSUPP;
1722 #endif
1723                         break;
1724                 }
1725         case SCTP_REUSE_PORT:
1726                 {
1727                         uint32_t *value;
1728
1729                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1730                                 /* Can't do this for a 1-m socket */
1731                                 error = EINVAL;
1732                                 break;
1733                         }
1734                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1735                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1736                         *optsize = sizeof(uint32_t);
1737                         break;
1738                 }
1739         case SCTP_PARTIAL_DELIVERY_POINT:
1740                 {
1741                         uint32_t *value;
1742
1743                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1744                         *value = inp->partial_delivery_point;
1745                         *optsize = sizeof(uint32_t);
1746                         break;
1747                 }
1748         case SCTP_FRAGMENT_INTERLEAVE:
1749                 {
1750                         uint32_t *value;
1751
1752                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1753                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1754                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1755                                         *value = SCTP_FRAG_LEVEL_2;
1756                                 } else {
1757                                         *value = SCTP_FRAG_LEVEL_1;
1758                                 }
1759                         } else {
1760                                 *value = SCTP_FRAG_LEVEL_0;
1761                         }
1762                         *optsize = sizeof(uint32_t);
1763                         break;
1764                 }
1765         case SCTP_CMT_ON_OFF:
1766                 {
1767                         struct sctp_assoc_value *av;
1768
1769                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1770                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1771                         if (stcb) {
1772                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1773                                 SCTP_TCB_UNLOCK(stcb);
1774                         } else {
1775                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1776                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1777                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1778                                         SCTP_INP_RLOCK(inp);
1779                                         av->assoc_value = inp->sctp_cmt_on_off;
1780                                         SCTP_INP_RUNLOCK(inp);
1781                                 } else {
1782                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1783                                         error = EINVAL;
1784                                 }
1785                         }
1786                         if (error == 0) {
1787                                 *optsize = sizeof(struct sctp_assoc_value);
1788                         }
1789                         break;
1790                 }
1791         case SCTP_PLUGGABLE_CC:
1792                 {
1793                         struct sctp_assoc_value *av;
1794
1795                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1796                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1797                         if (stcb) {
1798                                 av->assoc_value = stcb->asoc.congestion_control_module;
1799                                 SCTP_TCB_UNLOCK(stcb);
1800                         } else {
1801                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1802                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1803                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1804                                         SCTP_INP_RLOCK(inp);
1805                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1806                                         SCTP_INP_RUNLOCK(inp);
1807                                 } else {
1808                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1809                                         error = EINVAL;
1810                                 }
1811                         }
1812                         if (error == 0) {
1813                                 *optsize = sizeof(struct sctp_assoc_value);
1814                         }
1815                         break;
1816                 }
1817         case SCTP_CC_OPTION:
1818                 {
1819                         struct sctp_cc_option *cc_opt;
1820
1821                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1822                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1823                         if (stcb == NULL) {
1824                                 error = EINVAL;
1825                         } else {
1826                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1827                                         error = ENOTSUP;
1828                                 } else {
1829                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1830                                         *optsize = sizeof(struct sctp_cc_option);
1831                                 }
1832                                 SCTP_TCB_UNLOCK(stcb);
1833                         }
1834                         break;
1835                 }
1836         case SCTP_PLUGGABLE_SS:
1837                 {
1838                         struct sctp_assoc_value *av;
1839
1840                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1841                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1842                         if (stcb) {
1843                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1844                                 SCTP_TCB_UNLOCK(stcb);
1845                         } else {
1846                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1847                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1848                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1849                                         SCTP_INP_RLOCK(inp);
1850                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1851                                         SCTP_INP_RUNLOCK(inp);
1852                                 } else {
1853                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1854                                         error = EINVAL;
1855                                 }
1856                         }
1857                         if (error == 0) {
1858                                 *optsize = sizeof(struct sctp_assoc_value);
1859                         }
1860                         break;
1861                 }
1862         case SCTP_SS_VALUE:
1863                 {
1864                         struct sctp_stream_value *av;
1865
1866                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1867                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1868                         if (stcb) {
1869                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1870                                     &av->stream_value) < 0) {
1871                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1872                                         error = EINVAL;
1873                                 } else {
1874                                         *optsize = sizeof(struct sctp_stream_value);
1875                                 }
1876                                 SCTP_TCB_UNLOCK(stcb);
1877                         } else {
1878                                 /*
1879                                  * Can't get stream value without
1880                                  * association
1881                                  */
1882                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1883                                 error = EINVAL;
1884                         }
1885                         break;
1886                 }
1887         case SCTP_GET_ADDR_LEN:
1888                 {
1889                         struct sctp_assoc_value *av;
1890
1891                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1892                         error = EINVAL;
1893 #ifdef INET
1894                         if (av->assoc_value == AF_INET) {
1895                                 av->assoc_value = sizeof(struct sockaddr_in);
1896                                 error = 0;
1897                         }
1898 #endif
1899 #ifdef INET6
1900                         if (av->assoc_value == AF_INET6) {
1901                                 av->assoc_value = sizeof(struct sockaddr_in6);
1902                                 error = 0;
1903                         }
1904 #endif
1905                         if (error) {
1906                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1907                         } else {
1908                                 *optsize = sizeof(struct sctp_assoc_value);
1909                         }
1910                         break;
1911                 }
1912         case SCTP_GET_ASSOC_NUMBER:
1913                 {
1914                         uint32_t *value, cnt;
1915
1916                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1917                         cnt = 0;
1918                         SCTP_INP_RLOCK(inp);
1919                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1920                                 cnt++;
1921                         }
1922                         SCTP_INP_RUNLOCK(inp);
1923                         *value = cnt;
1924                         *optsize = sizeof(uint32_t);
1925                         break;
1926                 }
1927         case SCTP_GET_ASSOC_ID_LIST:
1928                 {
1929                         struct sctp_assoc_ids *ids;
1930                         unsigned int at, limit;
1931
1932                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1933                         at = 0;
1934                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1935                         SCTP_INP_RLOCK(inp);
1936                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1937                                 if (at < limit) {
1938                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1939                                 } else {
1940                                         error = EINVAL;
1941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1942                                         break;
1943                                 }
1944                         }
1945                         SCTP_INP_RUNLOCK(inp);
1946                         if (error == 0) {
1947                                 ids->gaids_number_of_ids = at;
1948                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1949                         }
1950                         break;
1951                 }
1952         case SCTP_CONTEXT:
1953                 {
1954                         struct sctp_assoc_value *av;
1955
1956                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1957                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1958
1959                         if (stcb) {
1960                                 av->assoc_value = stcb->asoc.context;
1961                                 SCTP_TCB_UNLOCK(stcb);
1962                         } else {
1963                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1964                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1965                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1966                                         SCTP_INP_RLOCK(inp);
1967                                         av->assoc_value = inp->sctp_context;
1968                                         SCTP_INP_RUNLOCK(inp);
1969                                 } else {
1970                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1971                                         error = EINVAL;
1972                                 }
1973                         }
1974                         if (error == 0) {
1975                                 *optsize = sizeof(struct sctp_assoc_value);
1976                         }
1977                         break;
1978                 }
1979         case SCTP_VRF_ID:
1980                 {
1981                         uint32_t *default_vrfid;
1982
1983                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1984                         *default_vrfid = inp->def_vrf_id;
1985                         *optsize = sizeof(uint32_t);
1986                         break;
1987                 }
1988         case SCTP_GET_ASOC_VRF:
1989                 {
1990                         struct sctp_assoc_value *id;
1991
1992                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1993                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1994                         if (stcb == NULL) {
1995                                 error = EINVAL;
1996                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1997                         } else {
1998                                 id->assoc_value = stcb->asoc.vrf_id;
1999                                 *optsize = sizeof(struct sctp_assoc_value);
2000                         }
2001                         break;
2002                 }
2003         case SCTP_GET_VRF_IDS:
2004                 {
2005                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2006                         error = EOPNOTSUPP;
2007                         break;
2008                 }
2009         case SCTP_GET_NONCE_VALUES:
2010                 {
2011                         struct sctp_get_nonce_values *gnv;
2012
2013                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2014                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2015
2016                         if (stcb) {
2017                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2018                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2019                                 SCTP_TCB_UNLOCK(stcb);
2020                                 *optsize = sizeof(struct sctp_get_nonce_values);
2021                         } else {
2022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2023                                 error = ENOTCONN;
2024                         }
2025                         break;
2026                 }
2027         case SCTP_DELAYED_SACK:
2028                 {
2029                         struct sctp_sack_info *sack;
2030
2031                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2032                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2033                         if (stcb) {
2034                                 sack->sack_delay = stcb->asoc.delayed_ack;
2035                                 sack->sack_freq = stcb->asoc.sack_freq;
2036                                 SCTP_TCB_UNLOCK(stcb);
2037                         } else {
2038                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2039                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2040                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2041                                         SCTP_INP_RLOCK(inp);
2042                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2043                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2044                                         SCTP_INP_RUNLOCK(inp);
2045                                 } else {
2046                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2047                                         error = EINVAL;
2048                                 }
2049                         }
2050                         if (error == 0) {
2051                                 *optsize = sizeof(struct sctp_sack_info);
2052                         }
2053                         break;
2054                 }
2055         case SCTP_GET_SNDBUF_USE:
2056                 {
2057                         struct sctp_sockstat *ss;
2058
2059                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2060                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2061
2062                         if (stcb) {
2063                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2064                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2065                                     stcb->asoc.size_on_all_streams);
2066                                 SCTP_TCB_UNLOCK(stcb);
2067                                 *optsize = sizeof(struct sctp_sockstat);
2068                         } else {
2069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2070                                 error = ENOTCONN;
2071                         }
2072                         break;
2073                 }
2074         case SCTP_MAX_BURST:
2075                 {
2076                         uint8_t *value;
2077
2078                         SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
2079
2080                         SCTP_INP_RLOCK(inp);
2081                         if (inp->sctp_ep.max_burst < 256) {
2082                                 *value = inp->sctp_ep.max_burst;
2083                         } else {
2084                                 *value = 255;
2085                         }
2086                         SCTP_INP_RUNLOCK(inp);
2087                         *optsize = sizeof(uint8_t);
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                                         /* get flags for PMTU */
2420                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2421                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2422                                         } else {
2423                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2424                                         }
2425                                         if (net->dscp & 0x01) {
2426                                                 paddrp->spp_dscp = net->dscp >> 2;
2427                                                 paddrp->spp_flags |= SPP_DSCP;
2428                                         }
2429 #ifdef INET6
2430                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2431                                             (net->flowlabel & 0x80000000)) {
2432                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2433                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2434                                         }
2435 #endif
2436                                 } else {
2437                                         /*
2438                                          * No destination so return default
2439                                          * value
2440                                          */
2441                                         int cnt = 0;
2442
2443                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2444                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2445                                         if (stcb->asoc.default_dscp & 0x01) {
2446                                                 paddrp->spp_dscp = stcb->asoc.default_dscp >> 2;
2447                                                 paddrp->spp_flags |= SPP_DSCP;
2448                                         }
2449 #ifdef INET6
2450                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2451                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2452                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2453                                         }
2454 #endif
2455                                         /* default settings should be these */
2456                                         if (sctp_is_feature_on(stcb->sctp_ep, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2457                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2458                                         } else {
2459                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2460                                         }
2461                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2462                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2463                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2464                                                         cnt++;
2465                                                 }
2466                                         }
2467                                         if (cnt) {
2468                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2469                                         }
2470                                 }
2471                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2472                                 SCTP_TCB_UNLOCK(stcb);
2473                         } else {
2474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2476                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2477                                         /* Use endpoint defaults */
2478                                         SCTP_INP_RLOCK(inp);
2479                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2480                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2481                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2482                                         /* get inp's default */
2483                                         if (inp->sctp_ep.default_dscp & 0x01) {
2484                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp >> 2;
2485                                                 paddrp->spp_flags |= SPP_DSCP;
2486                                         }
2487 #ifdef INET6
2488                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2489                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2490                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2491                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2492                                         }
2493 #endif
2494                                         /* can't return this */
2495                                         paddrp->spp_pathmtu = 0;
2496
2497                                         /* default behavior, no stcb */
2498                                         paddrp->spp_flags = SPP_PMTUD_ENABLE;
2499
2500                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2504                                         }
2505                                         SCTP_INP_RUNLOCK(inp);
2506                                 } else {
2507                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2508                                         error = EINVAL;
2509                                 }
2510                         }
2511                         if (error == 0) {
2512                                 *optsize = sizeof(struct sctp_paddrparams);
2513                         }
2514                         break;
2515                 }
2516         case SCTP_GET_PEER_ADDR_INFO:
2517                 {
2518                         struct sctp_paddrinfo *paddri;
2519                         struct sctp_nets *net;
2520
2521                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2522                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2523
2524                         net = NULL;
2525                         if (stcb) {
2526                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2527                         } else {
2528                                 /*
2529                                  * We increment here since
2530                                  * sctp_findassociation_ep_addr() wil do a
2531                                  * decrement if it finds the stcb as long as
2532                                  * the locked tcb (last argument) is NOT a
2533                                  * TCB.. aka NULL.
2534                                  */
2535                                 SCTP_INP_INCR_REF(inp);
2536                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2537                                 if (stcb == NULL) {
2538                                         SCTP_INP_DECR_REF(inp);
2539                                 }
2540                         }
2541
2542                         if ((stcb) && (net)) {
2543                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2544                                         /* It's unconfirmed */
2545                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2546                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2547                                         /* It's active */
2548                                         paddri->spinfo_state = SCTP_ACTIVE;
2549                                 } else {
2550                                         /* It's inactive */
2551                                         paddri->spinfo_state = SCTP_INACTIVE;
2552                                 }
2553                                 paddri->spinfo_cwnd = net->cwnd;
2554                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2555                                 paddri->spinfo_rto = net->RTO;
2556                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2557                                 paddri->spinfo_mtu = net->mtu;
2558                                 SCTP_TCB_UNLOCK(stcb);
2559                                 *optsize = sizeof(struct sctp_paddrinfo);
2560                         } else {
2561                                 if (stcb) {
2562                                         SCTP_TCB_UNLOCK(stcb);
2563                                 }
2564                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2565                                 error = ENOENT;
2566                         }
2567                         break;
2568                 }
2569         case SCTP_PCB_STATUS:
2570                 {
2571                         struct sctp_pcbinfo *spcb;
2572
2573                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2574                         sctp_fill_pcbinfo(spcb);
2575                         *optsize = sizeof(struct sctp_pcbinfo);
2576                         break;
2577                 }
2578         case SCTP_STATUS:
2579                 {
2580                         struct sctp_nets *net;
2581                         struct sctp_status *sstat;
2582
2583                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2584                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2585
2586                         if (stcb == NULL) {
2587                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2588                                 error = EINVAL;
2589                                 break;
2590                         }
2591                         /*
2592                          * I think passing the state is fine since
2593                          * sctp_constants.h will be available to the user
2594                          * land.
2595                          */
2596                         sstat->sstat_state = stcb->asoc.state;
2597                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2598                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2599                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2600                         /*
2601                          * We can't include chunks that have been passed to
2602                          * the socket layer. Only things in queue.
2603                          */
2604                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2605                             stcb->asoc.cnt_on_all_streams);
2606
2607
2608                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2609                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2610                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2611                         memcpy(&sstat->sstat_primary.spinfo_address,
2612                             &stcb->asoc.primary_destination->ro._l_addr,
2613                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2614                         net = stcb->asoc.primary_destination;
2615                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2616                         /*
2617                          * Again the user can get info from sctp_constants.h
2618                          * for what the state of the network is.
2619                          */
2620                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2621                                 /* It's unconfirmed */
2622                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2623                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2624                                 /* It's active */
2625                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2626                         } else {
2627                                 /* It's inactive */
2628                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2629                         }
2630                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2631                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2632                         sstat->sstat_primary.spinfo_rto = net->RTO;
2633                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2634                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2635                         SCTP_TCB_UNLOCK(stcb);
2636                         *optsize = sizeof(struct sctp_status);
2637                         break;
2638                 }
2639         case SCTP_RTOINFO:
2640                 {
2641                         struct sctp_rtoinfo *srto;
2642
2643                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2644                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2645
2646                         if (stcb) {
2647                                 srto->srto_initial = stcb->asoc.initial_rto;
2648                                 srto->srto_max = stcb->asoc.maxrto;
2649                                 srto->srto_min = stcb->asoc.minrto;
2650                                 SCTP_TCB_UNLOCK(stcb);
2651                         } else {
2652                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2653                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2654                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2655                                         SCTP_INP_RLOCK(inp);
2656                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2657                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2658                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2659                                         SCTP_INP_RUNLOCK(inp);
2660                                 } else {
2661                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2662                                         error = EINVAL;
2663                                 }
2664                         }
2665                         if (error == 0) {
2666                                 *optsize = sizeof(struct sctp_rtoinfo);
2667                         }
2668                         break;
2669                 }
2670         case SCTP_TIMEOUTS:
2671                 {
2672                         struct sctp_timeouts *stimo;
2673
2674                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2675                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2676
2677                         if (stcb) {
2678                                 stimo->stimo_init = stcb->asoc.timoinit;
2679                                 stimo->stimo_data = stcb->asoc.timodata;
2680                                 stimo->stimo_sack = stcb->asoc.timosack;
2681                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2682                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2683                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2684                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2685                                 SCTP_TCB_UNLOCK(stcb);
2686                                 *optsize = sizeof(struct sctp_timeouts);
2687                         } else {
2688                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2689                                 error = EINVAL;
2690                         }
2691                         break;
2692                 }
2693         case SCTP_ASSOCINFO:
2694                 {
2695                         struct sctp_assocparams *sasoc;
2696
2697                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2698                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2699
2700                         if (stcb) {
2701                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2702                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2703                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2704                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2705                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2706                                 SCTP_TCB_UNLOCK(stcb);
2707                         } else {
2708                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2709                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2710                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2711                                         SCTP_INP_RLOCK(inp);
2712                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2713                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2714                                         sasoc->sasoc_number_peer_destinations = 0;
2715                                         sasoc->sasoc_peer_rwnd = 0;
2716                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2717                                         SCTP_INP_RUNLOCK(inp);
2718                                 } else {
2719                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2720                                         error = EINVAL;
2721                                 }
2722                         }
2723                         if (error == 0) {
2724                                 *optsize = sizeof(struct sctp_assocparams);
2725                         }
2726                         break;
2727                 }
2728         case SCTP_DEFAULT_SEND_PARAM:
2729                 {
2730                         struct sctp_sndrcvinfo *s_info;
2731
2732                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2733                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2734
2735                         if (stcb) {
2736                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2737                                 SCTP_TCB_UNLOCK(stcb);
2738                         } else {
2739                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2740                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2741                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2742                                         SCTP_INP_RLOCK(inp);
2743                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2744                                         SCTP_INP_RUNLOCK(inp);
2745                                 } else {
2746                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2747                                         error = EINVAL;
2748                                 }
2749                         }
2750                         if (error == 0) {
2751                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2752                         }
2753                         break;
2754                 }
2755         case SCTP_INITMSG:
2756                 {
2757                         struct sctp_initmsg *sinit;
2758
2759                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2760                         SCTP_INP_RLOCK(inp);
2761                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2762                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2763                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2764                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2765                         SCTP_INP_RUNLOCK(inp);
2766                         *optsize = sizeof(struct sctp_initmsg);
2767                         break;
2768                 }
2769         case SCTP_PRIMARY_ADDR:
2770                 /* we allow a "get" operation on this */
2771                 {
2772                         struct sctp_setprim *ssp;
2773
2774                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2775                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2776
2777                         if (stcb) {
2778                                 /* simply copy out the sockaddr_storage... */
2779                                 int len;
2780
2781                                 len = *optsize;
2782                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2783                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2784
2785                                 memcpy(&ssp->ssp_addr,
2786                                     &stcb->asoc.primary_destination->ro._l_addr,
2787                                     len);
2788                                 SCTP_TCB_UNLOCK(stcb);
2789                                 *optsize = sizeof(struct sctp_setprim);
2790                         } else {
2791                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2792                                 error = EINVAL;
2793                         }
2794                         break;
2795                 }
2796         case SCTP_HMAC_IDENT:
2797                 {
2798                         struct sctp_hmacalgo *shmac;
2799                         sctp_hmaclist_t *hmaclist;
2800                         uint32_t size;
2801                         int i;
2802
2803                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2804
2805                         SCTP_INP_RLOCK(inp);
2806                         hmaclist = inp->sctp_ep.local_hmacs;
2807                         if (hmaclist == NULL) {
2808                                 /* no HMACs to return */
2809                                 *optsize = sizeof(*shmac);
2810                                 SCTP_INP_RUNLOCK(inp);
2811                                 break;
2812                         }
2813                         /* is there room for all of the hmac ids? */
2814                         size = sizeof(*shmac) + (hmaclist->num_algo *
2815                             sizeof(shmac->shmac_idents[0]));
2816                         if ((size_t)(*optsize) < size) {
2817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2818                                 error = EINVAL;
2819                                 SCTP_INP_RUNLOCK(inp);
2820                                 break;
2821                         }
2822                         /* copy in the list */
2823                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2824                         for (i = 0; i < hmaclist->num_algo; i++) {
2825                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2826                         }
2827                         SCTP_INP_RUNLOCK(inp);
2828                         *optsize = size;
2829                         break;
2830                 }
2831         case SCTP_AUTH_ACTIVE_KEY:
2832                 {
2833                         struct sctp_authkeyid *scact;
2834
2835                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2836                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2837
2838                         if (stcb) {
2839                                 /* get the active key on the assoc */
2840                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2841                                 SCTP_TCB_UNLOCK(stcb);
2842                         } else {
2843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2845                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2846                                         /* get the endpoint active key */
2847                                         SCTP_INP_RLOCK(inp);
2848                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2849                                         SCTP_INP_RUNLOCK(inp);
2850                                 } else {
2851                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2852                                         error = EINVAL;
2853                                 }
2854                         }
2855                         if (error == 0) {
2856                                 *optsize = sizeof(struct sctp_authkeyid);
2857                         }
2858                         break;
2859                 }
2860         case SCTP_LOCAL_AUTH_CHUNKS:
2861                 {
2862                         struct sctp_authchunks *sac;
2863                         sctp_auth_chklist_t *chklist = NULL;
2864                         size_t size = 0;
2865
2866                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2867                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2868
2869                         if (stcb) {
2870                                 /* get off the assoc */
2871                                 chklist = stcb->asoc.local_auth_chunks;
2872                                 /* is there enough space? */
2873                                 size = sctp_auth_get_chklist_size(chklist);
2874                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2875                                         error = EINVAL;
2876                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2877                                 } else {
2878                                         /* copy in the chunks */
2879                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2880                                         *optsize = sizeof(struct sctp_authchunks) + size;
2881                                 }
2882                                 SCTP_TCB_UNLOCK(stcb);
2883                         } else {
2884                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2885                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2886                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2887                                         /* get off the endpoint */
2888                                         SCTP_INP_RLOCK(inp);
2889                                         chklist = inp->sctp_ep.local_auth_chunks;
2890                                         /* is there enough space? */
2891                                         size = sctp_auth_get_chklist_size(chklist);
2892                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2893                                                 error = EINVAL;
2894                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2895                                         } else {
2896                                                 /* copy in the chunks */
2897                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
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                                         *optsize = sizeof(struct sctp_authchunks) + size;
2929                                 }
2930                                 SCTP_TCB_UNLOCK(stcb);
2931                         } else {
2932                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2933                                 error = ENOENT;
2934                         }
2935                         break;
2936                 }
2937         case SCTP_EVENT:
2938                 {
2939                         struct sctp_event *event;
2940                         uint32_t event_type;
2941
2942                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2943                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2944
2945                         switch (event->se_type) {
2946                         case SCTP_ASSOC_CHANGE:
2947                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2948                                 break;
2949                         case SCTP_PEER_ADDR_CHANGE:
2950                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2951                                 break;
2952                         case SCTP_REMOTE_ERROR:
2953                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2954                                 break;
2955                         case SCTP_SEND_FAILED:
2956                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2957                                 break;
2958                         case SCTP_SHUTDOWN_EVENT:
2959                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2960                                 break;
2961                         case SCTP_ADAPTATION_INDICATION:
2962                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2963                                 break;
2964                         case SCTP_PARTIAL_DELIVERY_EVENT:
2965                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2966                                 break;
2967                         case SCTP_AUTHENTICATION_EVENT:
2968                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2969                                 break;
2970                         case SCTP_STREAM_RESET_EVENT:
2971                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2972                                 break;
2973                         case SCTP_SENDER_DRY_EVENT:
2974                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2975                                 break;
2976                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2977                                 event_type = 0;
2978                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2979                                 error = ENOTSUP;
2980                                 break;
2981                         default:
2982                                 event_type = 0;
2983                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2984                                 error = EINVAL;
2985                                 break;
2986                         }
2987                         if (event_type > 0) {
2988                                 if (stcb) {
2989                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
2990                                         SCTP_TCB_UNLOCK(stcb);
2991                                 } else {
2992                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2993                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2994                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
2995                                                 SCTP_INP_RLOCK(inp);
2996                                                 event->se_on = sctp_is_feature_on(inp, event_type);
2997                                                 SCTP_INP_RUNLOCK(inp);
2998                                         } else {
2999                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3000                                                 error = EINVAL;
3001                                         }
3002                                 }
3003                         }
3004                         if (error == 0) {
3005                                 *optsize = sizeof(struct sctp_event);
3006                         }
3007                         break;
3008                 }
3009         case SCTP_RECVRCVINFO:
3010                 {
3011                         int onoff;
3012
3013                         if (*optsize < sizeof(int)) {
3014                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3015                                 error = EINVAL;
3016                         } else {
3017                                 SCTP_INP_RUNLOCK(inp);
3018                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3019                                 SCTP_INP_RUNLOCK(inp);
3020                         }
3021                         if (error == 0) {
3022                                 /* return the option value */
3023                                 *(int *)optval = onoff;
3024                                 *optsize = sizeof(int);
3025                         }
3026                         break;
3027                 }
3028         case SCTP_RECVNXTINFO:
3029                 {
3030                         int onoff;
3031
3032                         if (*optsize < sizeof(int)) {
3033                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3034                                 error = EINVAL;
3035                         } else {
3036                                 SCTP_INP_RUNLOCK(inp);
3037                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3038                                 SCTP_INP_RUNLOCK(inp);
3039                         }
3040                         if (error == 0) {
3041                                 /* return the option value */
3042                                 *(int *)optval = onoff;
3043                                 *optsize = sizeof(int);
3044                         }
3045                         break;
3046                 }
3047         case SCTP_DEFAULT_SNDINFO:
3048                 {
3049                         struct sctp_sndinfo *info;
3050
3051                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3052                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3053
3054                         if (stcb) {
3055                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3056                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3057                                 info->snd_flags &= 0xfff0;
3058                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3059                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3060                                 SCTP_TCB_UNLOCK(stcb);
3061                         } else {
3062                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3063                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3064                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3065                                         SCTP_INP_RLOCK(inp);
3066                                         info->snd_sid = inp->def_send.sinfo_stream;
3067                                         info->snd_flags = inp->def_send.sinfo_flags;
3068                                         info->snd_flags &= 0xfff0;
3069                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3070                                         info->snd_context = inp->def_send.sinfo_context;
3071                                         SCTP_INP_RUNLOCK(inp);
3072                                 } else {
3073                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3074                                         error = EINVAL;
3075                                 }
3076                         }
3077                         if (error == 0) {
3078                                 *optsize = sizeof(struct sctp_sndinfo);
3079                         }
3080                         break;
3081                 }
3082         case SCTP_DEFAULT_PRINFO:
3083                 {
3084                         struct sctp_default_prinfo *info;
3085
3086                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3087                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3088
3089                         if (stcb) {
3090                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3091                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3092                                 SCTP_TCB_UNLOCK(stcb);
3093                         } else {
3094                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3095                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3096                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3097                                         SCTP_INP_RLOCK(inp);
3098                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3099                                         info->pr_value = inp->def_send.sinfo_timetolive;
3100                                         SCTP_INP_RUNLOCK(inp);
3101                                 } else {
3102                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3103                                         error = EINVAL;
3104                                 }
3105                         }
3106                         if (error == 0) {
3107                                 *optsize = sizeof(struct sctp_default_prinfo);
3108                         }
3109                         break;
3110                 }
3111         case SCTP_PEER_ADDR_THLDS:
3112                 {
3113                         struct sctp_paddrthlds *thlds;
3114                         struct sctp_nets *net;
3115
3116                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3117                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3118
3119                         net = NULL;
3120                         if (stcb) {
3121                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3122                         } else {
3123                                 /*
3124                                  * We increment here since
3125                                  * sctp_findassociation_ep_addr() wil do a
3126                                  * decrement if it finds the stcb as long as
3127                                  * the locked tcb (last argument) is NOT a
3128                                  * TCB.. aka NULL.
3129                                  */
3130                                 SCTP_INP_INCR_REF(inp);
3131                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3132                                 if (stcb == NULL) {
3133                                         SCTP_INP_DECR_REF(inp);
3134                                 }
3135                         }
3136                         if (stcb && (net == NULL)) {
3137                                 struct sockaddr *sa;
3138
3139                                 sa = (struct sockaddr *)&thlds->spt_address;
3140 #ifdef INET
3141                                 if (sa->sa_family == AF_INET) {
3142                                         struct sockaddr_in *sin;
3143
3144                                         sin = (struct sockaddr_in *)sa;
3145                                         if (sin->sin_addr.s_addr) {
3146                                                 error = EINVAL;
3147                                                 SCTP_TCB_UNLOCK(stcb);
3148                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3149                                                 break;
3150                                         }
3151                                 } else
3152 #endif
3153 #ifdef INET6
3154                                 if (sa->sa_family == AF_INET6) {
3155                                         struct sockaddr_in6 *sin6;
3156
3157                                         sin6 = (struct sockaddr_in6 *)sa;
3158                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3159                                                 error = EINVAL;
3160                                                 SCTP_TCB_UNLOCK(stcb);
3161                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3162                                                 break;
3163                                         }
3164                                 } else
3165 #endif
3166                                 {
3167                                         error = EAFNOSUPPORT;
3168                                         SCTP_TCB_UNLOCK(stcb);
3169                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3170                                         break;
3171                                 }
3172                         }
3173                         if (stcb) {
3174                                 if (net) {
3175                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3176                                         thlds->spt_pathpfthld = net->pf_threshold;
3177                                 } else {
3178                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3179                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3180                                 }
3181                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3182                                 SCTP_TCB_UNLOCK(stcb);
3183                         } else {
3184                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3185                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3186                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3187                                         /* Use endpoint defaults */
3188                                         SCTP_INP_RLOCK(inp);
3189                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3190                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3191                                         SCTP_INP_RUNLOCK(inp);
3192                                 } else {
3193                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3194                                         error = EINVAL;
3195                                 }
3196                         }
3197                         if (error == 0) {
3198                                 *optsize = sizeof(struct sctp_paddrthlds);
3199                         }
3200                         break;
3201                 }
3202         default:
3203                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3204                 error = ENOPROTOOPT;
3205                 break;
3206         }                       /* end switch (sopt->sopt_name) */
3207         if (error) {
3208                 *optsize = 0;
3209         }
3210         return (error);
3211 }
3212
3213 static int
3214 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3215     void *p)
3216 {
3217         int error, set_opt;
3218         uint32_t *mopt;
3219         struct sctp_tcb *stcb = NULL;
3220         struct sctp_inpcb *inp = NULL;
3221         uint32_t vrf_id;
3222
3223         if (optval == NULL) {
3224                 SCTP_PRINTF("optval is NULL\n");
3225                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3226                 return (EINVAL);
3227         }
3228         inp = (struct sctp_inpcb *)so->so_pcb;
3229         if (inp == 0) {
3230                 SCTP_PRINTF("inp is NULL?\n");
3231                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3232                 return EINVAL;
3233         }
3234         vrf_id = inp->def_vrf_id;
3235
3236         error = 0;
3237         switch (optname) {
3238         case SCTP_NODELAY:
3239         case SCTP_AUTOCLOSE:
3240         case SCTP_AUTO_ASCONF:
3241         case SCTP_EXPLICIT_EOR:
3242         case SCTP_DISABLE_FRAGMENTS:
3243         case SCTP_USE_EXT_RCVINFO:
3244         case SCTP_I_WANT_MAPPED_V4_ADDR:
3245                 /* copy in the option value */
3246                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3247                 set_opt = 0;
3248                 if (error)
3249                         break;
3250                 switch (optname) {
3251                 case SCTP_DISABLE_FRAGMENTS:
3252                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3253                         break;
3254                 case SCTP_AUTO_ASCONF:
3255                         /*
3256                          * NOTE: we don't really support this flag
3257                          */
3258                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3259                                 /* only valid for bound all sockets */
3260                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3261                                     (*mopt != 0)) {
3262                                         /* forbidden by admin */
3263                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3264                                         return (EPERM);
3265                                 }
3266                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3267                         } else {
3268                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3269                                 return (EINVAL);
3270                         }
3271                         break;
3272                 case SCTP_EXPLICIT_EOR:
3273                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3274                         break;
3275                 case SCTP_USE_EXT_RCVINFO:
3276                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3277                         break;
3278                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3279                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3280                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3281                         } else {
3282                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3283                                 return (EINVAL);
3284                         }
3285                         break;
3286                 case SCTP_NODELAY:
3287                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3288                         break;
3289                 case SCTP_AUTOCLOSE:
3290                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3291                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3292                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3293                                 return (EINVAL);
3294                         }
3295                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3296                         /*
3297                          * The value is in ticks. Note this does not effect
3298                          * old associations, only new ones.
3299                          */
3300                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3301                         break;
3302                 }
3303                 SCTP_INP_WLOCK(inp);
3304                 if (*mopt != 0) {
3305                         sctp_feature_on(inp, set_opt);
3306                 } else {
3307                         sctp_feature_off(inp, set_opt);
3308                 }
3309                 SCTP_INP_WUNLOCK(inp);
3310                 break;
3311         case SCTP_REUSE_PORT:
3312                 {
3313                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3314                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3315                                 /* Can't set it after we are bound */
3316                                 error = EINVAL;
3317                                 break;
3318                         }
3319                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3320                                 /* Can't do this for a 1-m socket */
3321                                 error = EINVAL;
3322                                 break;
3323                         }
3324                         if (optval)
3325                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3326                         else
3327                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3328                         break;
3329                 }
3330         case SCTP_PARTIAL_DELIVERY_POINT:
3331                 {
3332                         uint32_t *value;
3333
3334                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3335                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3336                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3337                                 error = EINVAL;
3338                                 break;
3339                         }
3340                         inp->partial_delivery_point = *value;
3341                         break;
3342                 }
3343         case SCTP_FRAGMENT_INTERLEAVE:
3344                 /* not yet until we re-write sctp_recvmsg() */
3345                 {
3346                         uint32_t *level;
3347
3348                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3349                         if (*level == SCTP_FRAG_LEVEL_2) {
3350                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3351                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3352                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3353                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3354                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3355                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3356                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3357                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3358
3359                         } else {
3360                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3361                                 error = EINVAL;
3362                         }
3363                         break;
3364                 }
3365         case SCTP_CMT_ON_OFF:
3366                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3367                         struct sctp_assoc_value *av;
3368
3369                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3370                         if (av->assoc_value > SCTP_CMT_MAX) {
3371                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3372                                 error = EINVAL;
3373                                 break;
3374                         }
3375                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3376                         if (stcb) {
3377                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3378                                 SCTP_TCB_UNLOCK(stcb);
3379                         } else {
3380                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3381                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3382                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3383                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3384                                         SCTP_INP_WLOCK(inp);
3385                                         inp->sctp_cmt_on_off = av->assoc_value;
3386                                         SCTP_INP_WUNLOCK(inp);
3387                                 }
3388                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3389                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3390                                         SCTP_INP_RLOCK(inp);
3391                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3392                                                 SCTP_TCB_LOCK(stcb);
3393                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3394                                                 SCTP_TCB_UNLOCK(stcb);
3395                                         }
3396                                         SCTP_INP_RUNLOCK(inp);
3397                                 }
3398                         }
3399                 } else {
3400                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3401                         error = ENOPROTOOPT;
3402                 }
3403                 break;
3404         case SCTP_PLUGGABLE_CC:
3405                 {
3406                         struct sctp_assoc_value *av;
3407                         struct sctp_nets *net;
3408
3409                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3410                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3411                             (av->assoc_value != SCTP_CC_HSTCP) &&
3412                             (av->assoc_value != SCTP_CC_HTCP) &&
3413                             (av->assoc_value != SCTP_CC_RTCC)) {
3414                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3415                                 error = EINVAL;
3416                                 break;
3417                         }
3418                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3419                         if (stcb) {
3420                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3421                                 stcb->asoc.congestion_control_module = av->assoc_value;
3422                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3423                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3424                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3425                                         }
3426                                 }
3427                                 SCTP_TCB_UNLOCK(stcb);
3428                         } else {
3429                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3430                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3431                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3432                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3433                                         SCTP_INP_WLOCK(inp);
3434                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3435                                         SCTP_INP_WUNLOCK(inp);
3436                                 }
3437                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3438                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3439                                         SCTP_INP_RLOCK(inp);
3440                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3441                                                 SCTP_TCB_LOCK(stcb);
3442                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3443                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3444                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3445                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3446                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3447                                                         }
3448                                                 }
3449                                                 SCTP_TCB_UNLOCK(stcb);
3450                                         }
3451                                         SCTP_INP_RUNLOCK(inp);
3452                                 }
3453                         }
3454                         break;
3455                 }
3456         case SCTP_CC_OPTION:
3457                 {
3458                         struct sctp_cc_option *cc_opt;
3459
3460                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3461                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3462                         if (stcb == NULL) {
3463                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3464                                         SCTP_INP_RLOCK(inp);
3465                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3466                                                 SCTP_TCB_LOCK(stcb);
3467                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3468                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3469                                                 }
3470                                                 SCTP_TCB_UNLOCK(stcb);
3471                                         }
3472                                         SCTP_INP_RUNLOCK(inp);
3473                                 } else {
3474                                         error = EINVAL;
3475                                 }
3476                         } else {
3477                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3478                                         error = ENOTSUP;
3479                                 } else {
3480                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3481                                             cc_opt);
3482                                 }
3483                                 SCTP_TCB_UNLOCK(stcb);
3484                         }
3485                         break;
3486                 }
3487         case SCTP_PLUGGABLE_SS:
3488                 {
3489                         struct sctp_assoc_value *av;
3490
3491                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3492                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3493                             (av->assoc_value != SCTP_SS_DEFAULT) &&
3494                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3495                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3496                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3497                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3498                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3499                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3500                                 error = EINVAL;
3501                                 break;
3502                         }
3503                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3504                         if (stcb) {
3505                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3506                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3507                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3508                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3509                                 SCTP_TCB_UNLOCK(stcb);
3510                         } else {
3511                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3512                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3513                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3514                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3515                                         SCTP_INP_WLOCK(inp);
3516                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3517                                         SCTP_INP_WUNLOCK(inp);
3518                                 }
3519                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3520                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3521                                         SCTP_INP_RLOCK(inp);
3522                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3523                                                 SCTP_TCB_LOCK(stcb);
3524                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3525                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3526                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3527                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3528                                                 SCTP_TCB_UNLOCK(stcb);
3529                                         }
3530                                         SCTP_INP_RUNLOCK(inp);
3531                                 }
3532                         }
3533                         break;
3534                 }
3535         case SCTP_SS_VALUE:
3536                 {
3537                         struct sctp_stream_value *av;
3538
3539                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3540                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3541                         if (stcb) {
3542                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3543                                     av->stream_value) < 0) {
3544                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3545                                         error = EINVAL;
3546                                 }
3547                                 SCTP_TCB_UNLOCK(stcb);
3548                         } else {
3549                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3550                                         SCTP_INP_RLOCK(inp);
3551                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3552                                                 SCTP_TCB_LOCK(stcb);
3553                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3554                                                     &stcb->asoc,
3555                                                     &stcb->asoc.strmout[av->stream_id],
3556                                                     av->stream_value);
3557                                                 SCTP_TCB_UNLOCK(stcb);
3558                                         }
3559                                         SCTP_INP_RUNLOCK(inp);
3560
3561                                 } else {
3562                                         /*
3563                                          * Can't set stream value without
3564                                          * association
3565                                          */
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         break;
3571                 }
3572         case SCTP_CLR_STAT_LOG:
3573                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3574                 error = EOPNOTSUPP;
3575                 break;
3576         case SCTP_CONTEXT:
3577                 {
3578                         struct sctp_assoc_value *av;
3579
3580                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3581                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3582
3583                         if (stcb) {
3584                                 stcb->asoc.context = av->assoc_value;
3585                                 SCTP_TCB_UNLOCK(stcb);
3586                         } else {
3587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3590                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3591                                         SCTP_INP_WLOCK(inp);
3592                                         inp->sctp_context = av->assoc_value;
3593                                         SCTP_INP_WUNLOCK(inp);
3594                                 }
3595                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3596                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3597                                         SCTP_INP_RLOCK(inp);
3598                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3599                                                 SCTP_TCB_LOCK(stcb);
3600                                                 stcb->asoc.context = av->assoc_value;
3601                                                 SCTP_TCB_UNLOCK(stcb);
3602                                         }
3603                                         SCTP_INP_RUNLOCK(inp);
3604                                 }
3605                         }
3606                         break;
3607                 }
3608         case SCTP_VRF_ID:
3609                 {
3610                         uint32_t *default_vrfid;
3611
3612                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3613                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3615                                 error = EINVAL;
3616                                 break;
3617                         }
3618                         inp->def_vrf_id = *default_vrfid;
3619                         break;
3620                 }
3621         case SCTP_DEL_VRF_ID:
3622                 {
3623                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3624                         error = EOPNOTSUPP;
3625                         break;
3626                 }
3627         case SCTP_ADD_VRF_ID:
3628                 {
3629                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3630                         error = EOPNOTSUPP;
3631                         break;
3632                 }
3633         case SCTP_DELAYED_SACK:
3634                 {
3635                         struct sctp_sack_info *sack;
3636
3637                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3638                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3639                         if (sack->sack_delay) {
3640                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3641                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3642                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3643                                         sack->sack_delay = TICKS_TO_MSEC(1);
3644                                 }
3645                         }
3646                         if (stcb) {
3647                                 if (sack->sack_delay) {
3648                                         stcb->asoc.delayed_ack = sack->sack_delay;
3649                                 }
3650                                 if (sack->sack_freq) {
3651                                         stcb->asoc.sack_freq = sack->sack_freq;
3652                                 }
3653                                 SCTP_TCB_UNLOCK(stcb);
3654                         } else {
3655                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3656                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3657                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3658                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3659                                         SCTP_INP_WLOCK(inp);
3660                                         if (sack->sack_delay) {
3661                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3662                                         }
3663                                         if (sack->sack_freq) {
3664                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3665                                         }
3666                                         SCTP_INP_WUNLOCK(inp);
3667                                 }
3668                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3669                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3670                                         SCTP_INP_RLOCK(inp);
3671                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3672                                                 SCTP_TCB_LOCK(stcb);
3673                                                 if (sack->sack_delay) {
3674                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3675                                                 }
3676                                                 if (sack->sack_freq) {
3677                                                         stcb->asoc.sack_freq = sack->sack_freq;
3678                                                 }
3679                                                 SCTP_TCB_UNLOCK(stcb);
3680                                         }
3681                                         SCTP_INP_RUNLOCK(inp);
3682                                 }
3683                         }
3684                         break;
3685                 }
3686         case SCTP_AUTH_CHUNK:
3687                 {
3688                         struct sctp_authchunk *sauth;
3689
3690                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3691
3692                         SCTP_INP_WLOCK(inp);
3693                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3694                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3695                                 error = EINVAL;
3696                         }
3697                         SCTP_INP_WUNLOCK(inp);
3698                         break;
3699                 }
3700         case SCTP_AUTH_KEY:
3701                 {
3702                         struct sctp_authkey *sca;
3703                         struct sctp_keyhead *shared_keys;
3704                         sctp_sharedkey_t *shared_key;
3705                         sctp_key_t *key = NULL;
3706                         size_t size;
3707
3708                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3709                         if (sca->sca_keylength == 0) {
3710                                 size = optsize - sizeof(struct sctp_authkey);
3711                         } else {
3712                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3713                                         size = sca->sca_keylength;
3714                                 } else {
3715                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3716                                         error = EINVAL;
3717                                         break;
3718                                 }
3719                         }
3720                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3721
3722                         if (stcb) {
3723                                 shared_keys = &stcb->asoc.shared_keys;
3724                                 /* clear the cached keys for this key id */
3725                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3726                                 /*
3727                                  * create the new shared key and
3728                                  * insert/replace it
3729                                  */
3730                                 if (size > 0) {
3731                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3732                                         if (key == NULL) {
3733                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3734                                                 error = ENOMEM;
3735                                                 SCTP_TCB_UNLOCK(stcb);
3736                                                 break;
3737                                         }
3738                                 }
3739                                 shared_key = sctp_alloc_sharedkey();
3740                                 if (shared_key == NULL) {
3741                                         sctp_free_key(key);
3742                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3743                                         error = ENOMEM;
3744                                         SCTP_TCB_UNLOCK(stcb);
3745                                         break;
3746                                 }
3747                                 shared_key->key = key;
3748                                 shared_key->keyid = sca->sca_keynumber;
3749                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3750                                 SCTP_TCB_UNLOCK(stcb);
3751                         } else {
3752                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3753                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3754                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3755                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3756                                         SCTP_INP_WLOCK(inp);
3757                                         shared_keys = &inp->sctp_ep.shared_keys;
3758                                         /*
3759                                          * clear the cached keys on all
3760                                          * assocs for this key id
3761                                          */
3762                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3763                                         /*
3764                                          * create the new shared key and
3765                                          * insert/replace it
3766                                          */
3767                                         if (size > 0) {
3768                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3769                                                 if (key == NULL) {
3770                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3771                                                         error = ENOMEM;
3772                                                         SCTP_INP_WUNLOCK(inp);
3773                                                         break;
3774                                                 }
3775                                         }
3776                                         shared_key = sctp_alloc_sharedkey();
3777                                         if (shared_key == NULL) {
3778                                                 sctp_free_key(key);
3779                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3780                                                 error = ENOMEM;
3781                                                 SCTP_INP_WUNLOCK(inp);
3782                                                 break;
3783                                         }
3784                                         shared_key->key = key;
3785                                         shared_key->keyid = sca->sca_keynumber;
3786                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3787                                         SCTP_INP_WUNLOCK(inp);
3788                                 }
3789                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3790                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3791                                         SCTP_INP_RLOCK(inp);
3792                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3793                                                 SCTP_TCB_LOCK(stcb);
3794                                                 shared_keys = &stcb->asoc.shared_keys;
3795                                                 /*
3796                                                  * clear the cached keys for
3797                                                  * this key id
3798                                                  */
3799                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3800                                                 /*
3801                                                  * create the new shared key
3802                                                  * and insert/replace it
3803                                                  */
3804                                                 if (size > 0) {
3805                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3806                                                         if (key == NULL) {
3807                                                                 SCTP_TCB_UNLOCK(stcb);
3808                                                                 continue;
3809                                                         }
3810                                                 }
3811                                                 shared_key = sctp_alloc_sharedkey();
3812                                                 if (shared_key == NULL) {
3813                                                         sctp_free_key(key);
3814                                                         SCTP_TCB_UNLOCK(stcb);
3815                                                         continue;
3816                                                 }
3817                                                 shared_key->key = key;
3818                                                 shared_key->keyid = sca->sca_keynumber;
3819                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3820                                                 SCTP_TCB_UNLOCK(stcb);
3821                                         }
3822                                         SCTP_INP_RUNLOCK(inp);
3823                                 }
3824                         }
3825                         break;
3826                 }
3827         case SCTP_HMAC_IDENT:
3828                 {
3829                         struct sctp_hmacalgo *shmac;
3830                         sctp_hmaclist_t *hmaclist;
3831                         uint16_t hmacid;
3832                         uint32_t i;
3833                         size_t found;
3834
3835                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3836                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3837                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3838                                 error = EINVAL;
3839                                 break;
3840                         }
3841                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3842                         if (hmaclist == NULL) {
3843                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3844                                 error = ENOMEM;
3845                                 break;
3846                         }
3847                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3848                                 hmacid = shmac->shmac_idents[i];
3849                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3850                                          /* invalid HMACs were found */ ;
3851                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3852                                         error = EINVAL;
3853                                         sctp_free_hmaclist(hmaclist);
3854                                         goto sctp_set_hmac_done;
3855                                 }
3856                         }
3857                         found = 0;
3858                         for (i = 0; i < hmaclist->num_algo; i++) {
3859                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3860                                         /* already in list */
3861                                         found = 1;
3862                                 }
3863                         }
3864                         if (!found) {
3865                                 sctp_free_hmaclist(hmaclist);
3866                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3867                                 error = EINVAL;
3868                                 break;
3869                         }
3870                         /* set it on the endpoint */
3871                         SCTP_INP_WLOCK(inp);
3872                         if (inp->sctp_ep.local_hmacs)
3873                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3874                         inp->sctp_ep.local_hmacs = hmaclist;
3875                         SCTP_INP_WUNLOCK(inp);
3876         sctp_set_hmac_done:
3877                         break;
3878                 }
3879         case SCTP_AUTH_ACTIVE_KEY:
3880                 {
3881                         struct sctp_authkeyid *scact;
3882
3883                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3884                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3885
3886                         /* set the active key on the right place */
3887                         if (stcb) {
3888                                 /* set the active key on the assoc */
3889                                 if (sctp_auth_setactivekey(stcb,
3890                                     scact->scact_keynumber)) {
3891                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3892                                             SCTP_FROM_SCTP_USRREQ,
3893                                             EINVAL);
3894                                         error = EINVAL;
3895                                 }
3896                                 SCTP_TCB_UNLOCK(stcb);
3897                         } else {
3898                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3899                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3900                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3901                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3902                                         SCTP_INP_WLOCK(inp);
3903                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
3904                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3905                                                 error = EINVAL;
3906                                         }
3907                                         SCTP_INP_WUNLOCK(inp);
3908                                 }
3909                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
3910                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3911                                         SCTP_INP_RLOCK(inp);
3912                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3913                                                 SCTP_TCB_LOCK(stcb);
3914                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
3915                                                 SCTP_TCB_UNLOCK(stcb);
3916                                         }
3917                                         SCTP_INP_RUNLOCK(inp);
3918                                 }
3919                         }
3920                         break;
3921                 }
3922         case SCTP_AUTH_DELETE_KEY:
3923                 {
3924                         struct sctp_authkeyid *scdel;
3925
3926                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
3927                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
3928
3929                         /* delete the key from the right place */
3930                         if (stcb) {
3931                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
3932                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3933                                         error = EINVAL;
3934                                 }
3935                                 SCTP_TCB_UNLOCK(stcb);
3936                         } else {
3937                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3938                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3939                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3940                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
3941                                         SCTP_INP_WLOCK(inp);
3942                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
3943                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3944                                                 error = EINVAL;
3945                                         }
3946                                         SCTP_INP_WUNLOCK(inp);
3947                                 }
3948                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
3949                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
3950                                         SCTP_INP_RLOCK(inp);
3951                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3952                                                 SCTP_TCB_LOCK(stcb);
3953                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
3954                                                 SCTP_TCB_UNLOCK(stcb);
3955                                         }
3956                                         SCTP_INP_RUNLOCK(inp);
3957                                 }
3958                         }
3959                         break;
3960                 }
3961         case SCTP_AUTH_DEACTIVATE_KEY:
3962                 {
3963                         struct sctp_authkeyid *keyid;
3964
3965                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
3966                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
3967
3968                         /* deactivate the key from the right place */
3969                         if (stcb) {
3970                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
3971                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3972                                         error = EINVAL;
3973                                 }
3974                                 SCTP_TCB_UNLOCK(stcb);
3975                         } else {
3976                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3977                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3978                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3979                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
3980                                         SCTP_INP_WLOCK(inp);
3981                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
3982                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3983                                                 error = EINVAL;
3984                                         }
3985                                         SCTP_INP_WUNLOCK(inp);
3986                                 }
3987                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
3988                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
3989                                         SCTP_INP_RLOCK(inp);
3990                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3991                                                 SCTP_TCB_LOCK(stcb);
3992                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
3993                                                 SCTP_TCB_UNLOCK(stcb);
3994                                         }
3995                                         SCTP_INP_RUNLOCK(inp);
3996                                 }
3997                         }
3998                         break;
3999                 }
4000
4001         case SCTP_RESET_STREAMS:
4002                 {
4003                         struct sctp_stream_reset *strrst;
4004                         uint8_t send_in = 0, send_tsn = 0, send_out = 0,
4005                                 addstream = 0;
4006                         uint16_t addstrmcnt = 0;
4007                         int i;
4008
4009                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
4010                         SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
4011
4012                         if (stcb == NULL) {
4013                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4014                                 error = ENOENT;
4015                                 break;
4016                         }
4017                         if (stcb->asoc.peer_supports_strreset == 0) {
4018                                 /*
4019                                  * Peer does not support it, we return
4020                                  * protocol not supported since this is true
4021                                  * for this feature and this peer, not the
4022                                  * socket request in general.
4023                                  */
4024                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT);
4025                                 error = EPROTONOSUPPORT;
4026                                 SCTP_TCB_UNLOCK(stcb);
4027                                 break;
4028                         }
4029                         if (stcb->asoc.stream_reset_outstanding) {
4030                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4031                                 error = EALREADY;
4032                                 SCTP_TCB_UNLOCK(stcb);
4033                                 break;
4034                         }
4035                         if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
4036                                 send_in = 1;
4037                         } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
4038                                 send_out = 1;
4039                         } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
4040                                 send_in = 1;
4041                                 send_out = 1;
4042                         } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
4043                                 send_tsn = 1;
4044                         } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) {
4045                                 if (send_tsn ||
4046                                     send_in ||
4047                                     send_out) {
4048                                         /* We can't do that and add streams */
4049                                         error = EINVAL;
4050                                         goto skip_stuff;
4051                                 }
4052                                 if (stcb->asoc.stream_reset_outstanding) {
4053                                         error = EBUSY;
4054                                         goto skip_stuff;
4055                                 }
4056                                 addstream = 1;
4057                                 /* We allocate here */
4058                                 addstrmcnt = strrst->strrst_num_streams;
4059                                 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) {
4060                                         /* You can't have more than 64k */
4061                                         error = EINVAL;
4062                                         goto skip_stuff;
4063                                 }
4064                                 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) {
4065                                         /* Need to allocate more */
4066                                         struct sctp_stream_out *oldstream;
4067                                         struct sctp_stream_queue_pending *sp,
4068                                                                  *nsp;
4069
4070                                         oldstream = stcb->asoc.strmout;
4071                                         /* get some more */
4072                                         SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *,
4073                                             ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)),
4074                                             SCTP_M_STRMO);
4075                                         if (stcb->asoc.strmout == NULL) {
4076                                                 stcb->asoc.strmout = oldstream;
4077                                                 error = ENOMEM;
4078                                                 goto skip_stuff;
4079                                         }
4080                                         /*
4081                                          * Ok now we proceed with copying
4082                                          * the old out stuff and
4083                                          * initializing the new stuff.
4084                                          */
4085                                         SCTP_TCB_SEND_LOCK(stcb);
4086                                         stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0, 1);
4087                                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4088                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
4089                                                 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent;
4090                                                 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete;
4091                                                 stcb->asoc.strmout[i].stream_no = i;
4092                                                 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], &oldstream[i]);
4093                                                 /*
4094                                                  * now anything on those
4095                                                  * queues?
4096                                                  */
4097                                                 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) {
4098                                                         TAILQ_REMOVE(&oldstream[i].outqueue, sp, next);
4099                                                         TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next);
4100                                                 }
4101                                                 /*
4102                                                  * Now move assoc pointers
4103                                                  * too
4104                                                  */
4105                                                 if (stcb->asoc.last_out_stream == &oldstream[i]) {
4106                                                         stcb->asoc.last_out_stream = &stcb->asoc.strmout[i];
4107                                                 }
4108                                                 if (stcb->asoc.locked_on_sending == &oldstream[i]) {
4109                                                         stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i];
4110                                                 }
4111                                         }
4112                                         /* now the new streams */
4113                                         stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4114                                         for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) {
4115                                                 stcb->asoc.strmout[i].next_sequence_sent = 0x0;
4116                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
4117                                                 stcb->asoc.strmout[i].stream_no = i;
4118                                                 stcb->asoc.strmout[i].last_msg_incomplete = 0;
4119                                                 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], NULL);
4120                                         }
4121                                         stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt;
4122                                         SCTP_FREE(oldstream, SCTP_M_STRMO);
4123                                 }
4124                                 SCTP_TCB_SEND_UNLOCK(stcb);
4125                                 goto skip_stuff;
4126                         } else {
4127                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4128                                 error = EINVAL;
4129                                 SCTP_TCB_UNLOCK(stcb);
4130                                 break;
4131                         }
4132                         for (i = 0; i < strrst->strrst_num_streams; i++) {
4133                                 if ((send_in) &&
4134
4135                                     (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
4136                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4137                                         error = EINVAL;
4138                                         goto get_out;
4139                                 }
4140                                 if ((send_out) &&
4141                                     (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
4142                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4143                                         error = EINVAL;
4144                                         goto get_out;
4145                                 }
4146                         }
4147         skip_stuff:
4148                         if (error) {
4149                 get_out:
4150                                 SCTP_TCB_UNLOCK(stcb);
4151                                 break;
4152                         }
4153                         error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
4154                             strrst->strrst_list,
4155                             send_out, (stcb->asoc.str_reset_seq_in - 3),
4156                             send_in, send_tsn, addstream, addstrmcnt);
4157
4158                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4159                         SCTP_TCB_UNLOCK(stcb);
4160                         break;
4161                 }
4162         case SCTP_CONNECT_X:
4163                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4164                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4165                         error = EINVAL;
4166                         break;
4167                 }
4168                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4169                 break;
4170         case SCTP_CONNECT_X_DELAYED:
4171                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4172                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4173                         error = EINVAL;
4174                         break;
4175                 }
4176                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4177                 break;
4178         case SCTP_CONNECT_X_COMPLETE:
4179                 {
4180                         struct sockaddr *sa;
4181                         struct sctp_nets *net;
4182
4183                         /* FIXME MT: check correct? */
4184                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4185
4186                         /* find tcb */
4187                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4188                                 SCTP_INP_RLOCK(inp);
4189                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4190                                 if (stcb) {
4191                                         SCTP_TCB_LOCK(stcb);
4192                                         net = sctp_findnet(stcb, sa);
4193                                 }
4194                                 SCTP_INP_RUNLOCK(inp);
4195                         } else {
4196                                 /*
4197                                  * We increment here since
4198                                  * sctp_findassociation_ep_addr() wil do a
4199                                  * decrement if it finds the stcb as long as
4200                                  * the locked tcb (last argument) is NOT a
4201                                  * TCB.. aka NULL.
4202                                  */
4203                                 SCTP_INP_INCR_REF(inp);
4204                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4205                                 if (stcb == NULL) {
4206                                         SCTP_INP_DECR_REF(inp);
4207                                 }
4208                         }
4209
4210                         if (stcb == NULL) {
4211                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4212                                 error = ENOENT;
4213                                 break;
4214                         }
4215                         if (stcb->asoc.delayed_connection == 1) {
4216                                 stcb->asoc.delayed_connection = 0;
4217                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4218                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4219                                     stcb->asoc.primary_destination,
4220                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4221                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4222                         } else {
4223                                 /*
4224                                  * already expired or did not use delayed
4225                                  * connectx
4226                                  */
4227                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4228                                 error = EALREADY;
4229                         }
4230                         SCTP_TCB_UNLOCK(stcb);
4231                         break;
4232                 }
4233         case SCTP_MAX_BURST:
4234                 {
4235                         uint8_t *burst;
4236
4237                         SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
4238
4239                         SCTP_INP_WLOCK(inp);
4240                         inp->sctp_ep.max_burst = *burst;
4241                         SCTP_INP_WUNLOCK(inp);
4242                         break;
4243                 }
4244         case SCTP_MAXSEG:
4245                 {
4246                         struct sctp_assoc_value *av;
4247                         int ovh;
4248
4249                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4250                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4251
4252                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4253                                 ovh = SCTP_MED_OVERHEAD;
4254                         } else {
4255                                 ovh = SCTP_MED_V4_OVERHEAD;
4256                         }
4257                         if (stcb) {
4258                                 if (av->assoc_value) {
4259                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4260                                 } else {
4261                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4262                                 }
4263                                 SCTP_TCB_UNLOCK(stcb);
4264                         } else {
4265                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4266                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4267                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4268                                         SCTP_INP_WLOCK(inp);
4269                                         /*
4270                                          * FIXME MT: I think this is not in
4271                                          * tune with the API ID
4272                                          */
4273                                         if (av->assoc_value) {
4274                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4275                                         } else {
4276                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4277                                         }
4278                                         SCTP_INP_WUNLOCK(inp);
4279                                 } else {
4280                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4281                                         error = EINVAL;
4282                                 }
4283                         }
4284                         break;
4285                 }
4286         case SCTP_EVENTS:
4287                 {
4288                         struct sctp_event_subscribe *events;
4289
4290                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4291
4292                         SCTP_INP_WLOCK(inp);
4293                         if (events->sctp_data_io_event) {
4294                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4295                         } else {
4296                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4297                         }
4298
4299                         if (events->sctp_association_event) {
4300                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4301                         } else {
4302                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4303                         }
4304
4305                         if (events->sctp_address_event) {
4306                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4307                         } else {
4308                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4309                         }
4310
4311                         if (events->sctp_send_failure_event) {
4312                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4313                         } else {
4314                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4315                         }
4316
4317                         if (events->sctp_peer_error_event) {
4318                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4319                         } else {
4320                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4321                         }
4322
4323                         if (events->sctp_shutdown_event) {
4324                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4325                         } else {
4326                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4327                         }
4328
4329                         if (events->sctp_partial_delivery_event) {
4330                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4331                         } else {
4332                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4333                         }
4334
4335                         if (events->sctp_adaptation_layer_event) {
4336                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4337                         } else {
4338                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4339                         }
4340
4341                         if (events->sctp_authentication_event) {
4342                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4343                         } else {
4344                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4345                         }
4346
4347                         if (events->sctp_sender_dry_event) {
4348                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4349                         } else {
4350                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4351                         }
4352
4353                         if (events->sctp_stream_reset_event) {
4354                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4355                         } else {
4356                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4357                         }
4358                         SCTP_INP_WUNLOCK(inp);
4359
4360                         SCTP_INP_RLOCK(inp);
4361                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4362                                 SCTP_TCB_LOCK(stcb);
4363                                 if (events->sctp_association_event) {
4364                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4365                                 } else {
4366                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4367                                 }
4368                                 if (events->sctp_address_event) {
4369                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4370                                 } else {
4371                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4372                                 }
4373                                 if (events->sctp_send_failure_event) {
4374                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4375                                 } else {
4376                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4377                                 }
4378                                 if (events->sctp_peer_error_event) {
4379                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4380                                 } else {
4381                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4382                                 }
4383                                 if (events->sctp_shutdown_event) {
4384                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4385                                 } else {
4386                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4387                                 }
4388                                 if (events->sctp_partial_delivery_event) {
4389                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4390                                 } else {
4391                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4392                                 }
4393                                 if (events->sctp_adaptation_layer_event) {
4394                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4395                                 } else {
4396                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4397                                 }
4398                                 if (events->sctp_authentication_event) {
4399                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4400                                 } else {
4401                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4402                                 }
4403                                 if (events->sctp_sender_dry_event) {
4404                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4405                                 } else {
4406                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4407                                 }
4408                                 if (events->sctp_stream_reset_event) {
4409                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4410                                 } else {
4411                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4412                                 }
4413                                 SCTP_TCB_UNLOCK(stcb);
4414                         }
4415                         /*
4416                          * Send up the sender dry event only for 1-to-1
4417                          * style sockets.
4418                          */
4419                         if (events->sctp_sender_dry_event) {
4420                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4421                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4422                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4423                                         if (stcb) {
4424                                                 SCTP_TCB_LOCK(stcb);
4425                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4426                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4427                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4428                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4429                                                 }
4430                                                 SCTP_TCB_UNLOCK(stcb);
4431                                         }
4432                                 }
4433                         }
4434                         SCTP_INP_RUNLOCK(inp);
4435                         break;
4436                 }
4437         case SCTP_ADAPTATION_LAYER:
4438                 {
4439                         struct sctp_setadaptation *adap_bits;
4440
4441                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4442                         SCTP_INP_WLOCK(inp);
4443                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4444                         SCTP_INP_WUNLOCK(inp);
4445                         break;
4446                 }
4447 #ifdef SCTP_DEBUG
4448         case SCTP_SET_INITIAL_DBG_SEQ:
4449                 {
4450                         uint32_t *vvv;
4451
4452                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4453                         SCTP_INP_WLOCK(inp);
4454                         inp->sctp_ep.initial_sequence_debug = *vvv;
4455                         SCTP_INP_WUNLOCK(inp);
4456                         break;
4457                 }
4458 #endif
4459         case SCTP_DEFAULT_SEND_PARAM:
4460                 {
4461                         struct sctp_sndrcvinfo *s_info;
4462
4463                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4464                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4465
4466                         if (stcb) {
4467                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4468                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4469                                 } else {
4470                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4471                                         error = EINVAL;
4472                                 }
4473                                 SCTP_TCB_UNLOCK(stcb);
4474                         } else {
4475                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4476                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4477                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4478                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4479                                         SCTP_INP_WLOCK(inp);
4480                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4481                                         SCTP_INP_WUNLOCK(inp);
4482                                 }
4483                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4484                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4485                                         SCTP_INP_RLOCK(inp);
4486                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4487                                                 SCTP_TCB_LOCK(stcb);
4488                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4489                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4490                                                 }
4491                                                 SCTP_TCB_UNLOCK(stcb);
4492                                         }
4493                                         SCTP_INP_RUNLOCK(inp);
4494                                 }
4495                         }
4496                         break;
4497                 }
4498         case SCTP_PEER_ADDR_PARAMS:
4499                 /* Applies to the specific association */
4500                 {
4501                         struct sctp_paddrparams *paddrp;
4502                         struct sctp_nets *net;
4503
4504                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4505                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4506                         net = NULL;
4507                         if (stcb) {
4508                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4509                         } else {
4510                                 /*
4511                                  * We increment here since
4512                                  * sctp_findassociation_ep_addr() wil do a
4513                                  * decrement if it finds the stcb as long as
4514                                  * the locked tcb (last argument) is NOT a
4515                                  * TCB.. aka NULL.
4516                                  */
4517                                 SCTP_INP_INCR_REF(inp);
4518                                 stcb = sctp_findassociation_ep_addr(&inp,
4519                                     (struct sockaddr *)&paddrp->spp_address,
4520                                     &net, NULL, NULL);
4521                                 if (stcb == NULL) {
4522                                         SCTP_INP_DECR_REF(inp);
4523                                 }
4524                         }
4525                         if (stcb && (net == NULL)) {
4526                                 struct sockaddr *sa;
4527
4528                                 sa = (struct sockaddr *)&paddrp->spp_address;
4529 #ifdef INET
4530                                 if (sa->sa_family == AF_INET) {
4531
4532                                         struct sockaddr_in *sin;
4533
4534                                         sin = (struct sockaddr_in *)sa;
4535                                         if (sin->sin_addr.s_addr) {
4536                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4537                                                 SCTP_TCB_UNLOCK(stcb);
4538                                                 error = EINVAL;
4539                                                 break;
4540                                         }
4541                                 } else
4542 #endif
4543 #ifdef INET6
4544                                 if (sa->sa_family == AF_INET6) {
4545                                         struct sockaddr_in6 *sin6;
4546
4547                                         sin6 = (struct sockaddr_in6 *)sa;
4548                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4549                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4550                                                 SCTP_TCB_UNLOCK(stcb);
4551                                                 error = EINVAL;
4552                                                 break;
4553                                         }
4554                                 } else
4555 #endif
4556                                 {
4557                                         error = EAFNOSUPPORT;
4558                                         SCTP_TCB_UNLOCK(stcb);
4559                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4560                                         break;
4561                                 }
4562                         }
4563                         /* sanity checks */
4564                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4565                                 if (stcb)
4566                                         SCTP_TCB_UNLOCK(stcb);
4567                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4568                                 return (EINVAL);
4569                         }
4570                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4571                                 if (stcb)
4572                                         SCTP_TCB_UNLOCK(stcb);
4573                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4574                                 return (EINVAL);
4575                         }
4576                         if (stcb) {
4577                                 /************************TCB SPECIFIC SET ******************/
4578                                 /*
4579                                  * do we change the timer for HB, we run
4580                                  * only one?
4581                                  */
4582                                 int ovh = 0;
4583
4584                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4585                                         ovh = SCTP_MED_OVERHEAD;
4586                                 } else {
4587                                         ovh = SCTP_MED_V4_OVERHEAD;
4588                                 }
4589
4590                                 /* network sets ? */
4591                                 if (net) {
4592                                         /************************NET SPECIFIC SET ******************/
4593                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4594                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4595                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4596                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4597                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4598                                                 }
4599                                                 net->dest_state |= SCTP_ADDR_NOHB;
4600                                         }
4601                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4602                                                 if (paddrp->spp_hbinterval) {
4603                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4604                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4605                                                         net->heart_beat_delay = 0;
4606                                                 }
4607                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4608                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4609                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4610                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4611                                         }
4612                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4613                                                 /* on demand HB */
4614                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4615                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4616                                         }
4617                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4618                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4619                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4620                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4621                                                 }
4622                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4623                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4624                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4625                                                                 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
4626                                                         }
4627                                                 }
4628                                         }
4629                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4630                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4631                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4632                                                 }
4633                                         }
4634                                         if (paddrp->spp_pathmaxrxt) {
4635                                                 if (net->dest_state & SCTP_ADDR_PF) {
4636                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4637                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4638                                                         }
4639                                                 } else {
4640                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4641                                                             (net->error_count > net->pf_threshold)) {
4642                                                                 net->dest_state |= SCTP_ADDR_PF;
4643                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4644                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4645                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4646                                                         }
4647                                                 }
4648                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4649                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4650                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4651                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4652                                                         }
4653                                                 } else {
4654                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4655                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4656                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4657                                                         }
4658                                                 }
4659                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4660                                         }
4661                                         if (paddrp->spp_flags & SPP_DSCP) {
4662                                                 net->dscp = paddrp->spp_dscp << 2;
4663                                                 net->dscp |= 0x01;
4664                                         }
4665 #ifdef INET6
4666                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4667                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4668                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4669                                                         net->flowlabel |= 0x80000000;
4670                                                 }
4671                                         }
4672 #endif
4673                                 } else {
4674                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4675                                         if (paddrp->spp_pathmaxrxt) {
4676                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4677                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4678                                                         if (net->dest_state & SCTP_ADDR_PF) {
4679                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4680                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4681                                                                 }
4682                                                         } else {
4683                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4684                                                                     (net->error_count > net->pf_threshold)) {
4685                                                                         net->dest_state |= SCTP_ADDR_PF;
4686                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4687                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4688                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4689                                                                 }
4690                                                         }
4691                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4692                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4693                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4694                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4695                                                                 }
4696                                                         } else {
4697                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4698                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4699                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4700                                                                 }
4701                                                         }
4702                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4703                                                 }
4704                                         }
4705                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4706                                                 if (paddrp->spp_hbinterval) {
4707                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4708                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4709                                                         stcb->asoc.heart_beat_delay = 0;
4710                                                 }
4711                                                 /* Turn back on the timer */
4712                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4713                                                         if (paddrp->spp_hbinterval) {
4714                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4715                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4716                                                                 net->heart_beat_delay = 0;
4717                                                         }
4718                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4719                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4720                                                         }
4721                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4722                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4723                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4724                                                 }
4725                                         }
4726                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4727                                                 /* Turn back on the timer */
4728                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4729                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4730                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4731                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4732                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4733                                                                 }
4734                                                         }
4735                                                 }
4736                                         }
4737                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4738                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4739                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4740                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4741                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4742                                                         }
4743                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4744                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4745                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4746                                                                         sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
4747                                                                 }
4748                                                         }
4749                                                 }
4750                                         }
4751                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4752                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4753                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4754                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4755                                                         }
4756                                                 }
4757                                         }
4758                                         if (paddrp->spp_flags & SPP_DSCP) {
4759                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4760                                                         net->dscp = paddrp->spp_dscp << 2;
4761                                                         net->dscp |= 0x01;
4762                                                 }
4763                                                 stcb->asoc.default_dscp = paddrp->spp_dscp << 2;
4764                                                 stcb->asoc.default_dscp |= 0x01;
4765                                         }
4766 #ifdef INET6
4767                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4768                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4769                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4770                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4771                                                                 net->flowlabel |= 0x80000000;
4772                                                         }
4773                                                 }
4774                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4775                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4776                                         }
4777 #endif
4778                                 }
4779                                 SCTP_TCB_UNLOCK(stcb);
4780                         } else {
4781                                 /************************NO TCB, SET TO default stuff ******************/
4782                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4783                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4784                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4785                                         SCTP_INP_WLOCK(inp);
4786                                         /*
4787                                          * For the TOS/FLOWLABEL stuff you
4788                                          * set it with the options on the
4789                                          * socket
4790                                          */
4791                                         if (paddrp->spp_pathmaxrxt) {
4792                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
4793                                         }
4794                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
4795                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4796                                         else if (paddrp->spp_hbinterval) {
4797                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
4798                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
4799                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4800                                         }
4801                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4802                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4803                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4804                                                 } else if (paddrp->spp_hbinterval) {
4805                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4806                                                 }
4807                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4808                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
4809                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4810                                         }
4811                                         if (paddrp->spp_flags & SPP_DSCP) {
4812                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp << 2;
4813                                                 inp->sctp_ep.default_dscp |= 0x01;
4814                                         }
4815 #ifdef INET6
4816                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4817                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4818                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4819                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
4820                                                 }
4821                                         }
4822 #endif
4823                                         SCTP_INP_WUNLOCK(inp);
4824                                 } else {
4825                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4826                                         error = EINVAL;
4827                                 }
4828                         }
4829                         break;
4830                 }
4831         case SCTP_RTOINFO:
4832                 {
4833                         struct sctp_rtoinfo *srto;
4834                         uint32_t new_init, new_min, new_max;
4835
4836                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
4837                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
4838
4839                         if (stcb) {
4840                                 if (srto->srto_initial)
4841                                         new_init = srto->srto_initial;
4842                                 else
4843                                         new_init = stcb->asoc.initial_rto;
4844                                 if (srto->srto_max)
4845                                         new_max = srto->srto_max;
4846                                 else
4847                                         new_max = stcb->asoc.maxrto;
4848                                 if (srto->srto_min)
4849                                         new_min = srto->srto_min;
4850                                 else
4851                                         new_min = stcb->asoc.minrto;
4852                                 if ((new_min <= new_init) && (new_init <= new_max)) {
4853                                         stcb->asoc.initial_rto = new_init;
4854                                         stcb->asoc.maxrto = new_max;
4855                                         stcb->asoc.minrto = new_min;
4856                                 } else {
4857                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4858                                         error = EINVAL;
4859                                 }
4860                                 SCTP_TCB_UNLOCK(stcb);
4861                         } else {
4862                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4863                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4864                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
4865                                         SCTP_INP_WLOCK(inp);
4866                                         if (srto->srto_initial)
4867                                                 new_init = srto->srto_initial;
4868                                         else
4869                                                 new_init = inp->sctp_ep.initial_rto;
4870                                         if (srto->srto_max)
4871                                                 new_max = srto->srto_max;
4872                                         else
4873                                                 new_max = inp->sctp_ep.sctp_maxrto;
4874                                         if (srto->srto_min)
4875                                                 new_min = srto->srto_min;
4876                                         else
4877                                                 new_min = inp->sctp_ep.sctp_minrto;
4878                                         if ((new_min <= new_init) && (new_init <= new_max)) {
4879                                                 inp->sctp_ep.initial_rto = new_init;
4880                                                 inp->sctp_ep.sctp_maxrto = new_max;
4881                                                 inp->sctp_ep.sctp_minrto = new_min;
4882                                         } else {
4883                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4884                                                 error = EINVAL;
4885                                         }
4886                                         SCTP_INP_WUNLOCK(inp);
4887                                 } else {
4888                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4889                                         error = EINVAL;
4890                                 }
4891                         }
4892                         break;
4893                 }
4894         case SCTP_ASSOCINFO:
4895                 {
4896                         struct sctp_assocparams *sasoc;
4897
4898                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
4899                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
4900                         if (sasoc->sasoc_cookie_life) {
4901                                 /* boundary check the cookie life */
4902                                 if (sasoc->sasoc_cookie_life < 1000)
4903                                         sasoc->sasoc_cookie_life = 1000;
4904                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
4905                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
4906                                 }
4907                         }
4908                         if (stcb) {
4909                                 if (sasoc->sasoc_asocmaxrxt)
4910                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
4911                                 if (sasoc->sasoc_cookie_life) {
4912                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
4913                                 }
4914                                 SCTP_TCB_UNLOCK(stcb);
4915                         } else {
4916                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4917                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4918                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
4919                                         SCTP_INP_WLOCK(inp);
4920                                         if (sasoc->sasoc_asocmaxrxt)
4921                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
4922                                         if (sasoc->sasoc_cookie_life) {
4923                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
4924                                         }
4925                                         SCTP_INP_WUNLOCK(inp);
4926                                 } else {
4927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4928                                         error = EINVAL;
4929                                 }
4930                         }
4931                         break;
4932                 }
4933         case SCTP_INITMSG:
4934                 {
4935                         struct sctp_initmsg *sinit;
4936
4937                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
4938                         SCTP_INP_WLOCK(inp);
4939                         if (sinit->sinit_num_ostreams)
4940                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
4941
4942                         if (sinit->sinit_max_instreams)
4943                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
4944
4945                         if (sinit->sinit_max_attempts)
4946                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
4947
4948                         if (sinit->sinit_max_init_timeo)
4949                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
4950                         SCTP_INP_WUNLOCK(inp);
4951                         break;
4952                 }
4953         case SCTP_PRIMARY_ADDR:
4954                 {
4955                         struct sctp_setprim *spa;
4956                         struct sctp_nets *net;
4957
4958                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
4959                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
4960
4961                         net = NULL;
4962                         if (stcb) {
4963                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
4964                         } else {
4965                                 /*
4966                                  * We increment here since
4967                                  * sctp_findassociation_ep_addr() wil do a
4968                                  * decrement if it finds the stcb as long as
4969                                  * the locked tcb (last argument) is NOT a
4970                                  * TCB.. aka NULL.
4971                                  */
4972                                 SCTP_INP_INCR_REF(inp);
4973                                 stcb = sctp_findassociation_ep_addr(&inp,
4974                                     (struct sockaddr *)&spa->ssp_addr,
4975                                     &net, NULL, NULL);
4976                                 if (stcb == NULL) {
4977                                         SCTP_INP_DECR_REF(inp);
4978                                 }
4979                         }
4980
4981                         if ((stcb) && (net)) {
4982                                 if ((net != stcb->asoc.primary_destination) &&
4983                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
4984                                         /* Ok we need to set it */
4985                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
4986                                                 if ((stcb->asoc.alternate) &&
4987                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
4988                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
4989                                                         sctp_free_remote_addr(stcb->asoc.alternate);
4990                                                         stcb->asoc.alternate = NULL;
4991                                                 }
4992                                         }
4993                                 }
4994                         } else {
4995                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4996                                 error = EINVAL;
4997                         }
4998                         if (stcb) {
4999                                 SCTP_TCB_UNLOCK(stcb);
5000                         }
5001                         break;
5002                 }
5003         case SCTP_SET_DYNAMIC_PRIMARY:
5004                 {
5005                         union sctp_sockstore *ss;
5006
5007                         error = priv_check(curthread,
5008                             PRIV_NETINET_RESERVEDPORT);
5009                         if (error)
5010                                 break;
5011
5012                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5013                         /* SUPER USER CHECK? */
5014                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5015                         break;
5016                 }
5017         case SCTP_SET_PEER_PRIMARY_ADDR:
5018                 {
5019                         struct sctp_setpeerprim *sspp;
5020
5021                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5022                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5023                         if (stcb != NULL) {
5024                                 struct sctp_ifa *ifa;
5025
5026                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5027                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5028                                 if (ifa == NULL) {
5029                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5030                                         error = EINVAL;
5031                                         goto out_of_it;
5032                                 }
5033                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5034                                         /*
5035                                          * Must validate the ifa found is in
5036                                          * our ep
5037                                          */
5038                                         struct sctp_laddr *laddr;
5039                                         int found = 0;
5040
5041                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5042                                                 if (laddr->ifa == NULL) {
5043                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5044                                                             __FUNCTION__);
5045                                                         continue;
5046                                                 }
5047                                                 if (laddr->ifa == ifa) {
5048                                                         found = 1;
5049                                                         break;
5050                                                 }
5051                                         }
5052                                         if (!found) {
5053                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5054                                                 error = EINVAL;
5055                                                 goto out_of_it;
5056                                         }
5057                                 }
5058                                 if (sctp_set_primary_ip_address_sa(stcb,
5059                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5060                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5061                                         error = EINVAL;
5062                                 }
5063                 out_of_it:
5064                                 SCTP_TCB_UNLOCK(stcb);
5065                         } else {
5066                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5067                                 error = EINVAL;
5068                         }
5069                         break;
5070                 }
5071         case SCTP_BINDX_ADD_ADDR:
5072                 {
5073                         struct sctp_getaddresses *addrs;
5074                         size_t sz;
5075                         struct thread *td;
5076
5077                         td = (struct thread *)p;
5078                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5079                             optsize);
5080 #ifdef INET
5081                         if (addrs->addr->sa_family == AF_INET) {
5082                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5083                                 if (optsize < sz) {
5084                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5085                                         error = EINVAL;
5086                                         break;
5087                                 }
5088                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5089                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5090                                         break;
5091                                 }
5092                         } else
5093 #endif
5094 #ifdef INET6
5095                         if (addrs->addr->sa_family == AF_INET6) {
5096                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5097                                 if (optsize < sz) {
5098                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5099                                         error = EINVAL;
5100                                         break;
5101                                 }
5102                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5103                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5104                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5105                                         break;
5106                                 }
5107                         } else
5108 #endif
5109                         {
5110                                 error = EAFNOSUPPORT;
5111                                 break;
5112                         }
5113                         sctp_bindx_add_address(so, inp, addrs->addr,
5114                             addrs->sget_assoc_id, vrf_id,
5115                             &error, p);
5116                         break;
5117                 }
5118         case SCTP_BINDX_REM_ADDR:
5119                 {
5120                         struct sctp_getaddresses *addrs;
5121                         size_t sz;
5122                         struct thread *td;
5123
5124                         td = (struct thread *)p;
5125
5126                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5127 #ifdef INET
5128                         if (addrs->addr->sa_family == AF_INET) {
5129                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5130                                 if (optsize < sz) {
5131                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5132                                         error = EINVAL;
5133                                         break;
5134                                 }
5135                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5136                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5137                                         break;
5138                                 }
5139                         } else
5140 #endif
5141 #ifdef INET6
5142                         if (addrs->addr->sa_family == AF_INET6) {
5143                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5144                                 if (optsize < sz) {
5145                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5146                                         error = EINVAL;
5147                                         break;
5148                                 }
5149                                 if (td != NULL &&
5150                                     (error = prison_local_ip6(td->td_ucred,
5151                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5152                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5153                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5154                                         break;
5155                                 }
5156                         } else
5157 #endif
5158                         {
5159                                 error = EAFNOSUPPORT;
5160                                 break;
5161                         }
5162                         sctp_bindx_delete_address(so, inp, addrs->addr,
5163                             addrs->sget_assoc_id, vrf_id,
5164                             &error);
5165                         break;
5166                 }
5167         case SCTP_EVENT:
5168                 {
5169                         struct sctp_event *event;
5170                         uint32_t event_type;
5171
5172                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5173                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5174                         switch (event->se_type) {
5175                         case SCTP_ASSOC_CHANGE:
5176                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5177                                 break;
5178                         case SCTP_PEER_ADDR_CHANGE:
5179                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5180                                 break;
5181                         case SCTP_REMOTE_ERROR:
5182                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5183                                 break;
5184                         case SCTP_SEND_FAILED:
5185                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5186                                 break;
5187                         case SCTP_SHUTDOWN_EVENT:
5188                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5189                                 break;
5190                         case SCTP_ADAPTATION_INDICATION:
5191                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5192                                 break;
5193                         case SCTP_PARTIAL_DELIVERY_EVENT:
5194                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5195                                 break;
5196                         case SCTP_AUTHENTICATION_EVENT:
5197                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5198                                 break;
5199                         case SCTP_STREAM_RESET_EVENT:
5200                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5201                                 break;
5202                         case SCTP_SENDER_DRY_EVENT:
5203                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5204                                 break;
5205                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5206                                 event_type = 0;
5207                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5208                                 error = ENOTSUP;
5209                                 break;
5210                         default:
5211                                 event_type = 0;
5212                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5213                                 error = EINVAL;
5214                                 break;
5215                         }
5216                         if (event_type > 0) {
5217                                 if (stcb) {
5218                                         if (event->se_on) {
5219                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5220                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5221                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5222                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5223                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5224                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5225                                                         }
5226                                                 }
5227                                         } else {
5228                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5229                                         }
5230                                         SCTP_TCB_UNLOCK(stcb);
5231                                 } else {
5232                                         /*
5233                                          * We don't want to send up a storm
5234                                          * of events, so return an error for
5235                                          * sender dry events
5236                                          */
5237                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5238                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5239                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5240                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5241                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5242                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5243                                                 error = ENOTSUP;
5244                                                 break;
5245                                         }
5246                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5247                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5248                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5249                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5250                                                 SCTP_INP_WLOCK(inp);
5251                                                 if (event->se_on) {
5252                                                         sctp_feature_on(inp, event_type);
5253                                                 } else {
5254                                                         sctp_feature_off(inp, event_type);
5255                                                 }
5256                                                 SCTP_INP_WUNLOCK(inp);
5257                                         }
5258                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5259                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5260                                                 SCTP_INP_RLOCK(inp);
5261                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5262                                                         SCTP_TCB_LOCK(stcb);
5263                                                         if (event->se_on) {
5264                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5265                                                         } else {
5266                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5267                                                         }
5268                                                         SCTP_TCB_UNLOCK(stcb);
5269                                                 }
5270                                                 SCTP_INP_RUNLOCK(inp);
5271                                         }
5272                                 }
5273                         }
5274                         break;
5275                 }
5276         case SCTP_RECVRCVINFO:
5277                 {
5278                         int *onoff;
5279
5280                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5281                         SCTP_INP_WLOCK(inp);
5282                         if (*onoff != 0) {
5283                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5284                         } else {
5285                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5286                         }
5287                         SCTP_INP_WUNLOCK(inp);
5288                         break;
5289                 }
5290         case SCTP_RECVNXTINFO:
5291                 {
5292                         int *onoff;
5293
5294                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5295                         SCTP_INP_WLOCK(inp);
5296                         if (*onoff != 0) {
5297                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5298                         } else {
5299                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5300                         }
5301                         SCTP_INP_WUNLOCK(inp);
5302                         break;
5303                 }
5304         case SCTP_DEFAULT_SNDINFO:
5305                 {
5306                         struct sctp_sndinfo *info;
5307                         uint16_t policy;
5308
5309                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5310                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5311
5312                         if (stcb) {
5313                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5314                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5315                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5316                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5317                                         stcb->asoc.def_send.sinfo_flags |= policy;
5318                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5319                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5320                                 } else {
5321                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5322                                         error = EINVAL;
5323                                 }
5324                                 SCTP_TCB_UNLOCK(stcb);
5325                         } else {
5326                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5327                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5328                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5329                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5330                                         SCTP_INP_WLOCK(inp);
5331                                         inp->def_send.sinfo_stream = info->snd_sid;
5332                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5333                                         inp->def_send.sinfo_flags = info->snd_flags;
5334                                         inp->def_send.sinfo_flags |= policy;
5335                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5336                                         inp->def_send.sinfo_context = info->snd_context;
5337                                         SCTP_INP_WUNLOCK(inp);
5338                                 }
5339                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5340                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5341                                         SCTP_INP_RLOCK(inp);
5342                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5343                                                 SCTP_TCB_LOCK(stcb);
5344                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5345                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5346                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5347                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5348                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5349                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5350                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5351                                                 }
5352                                                 SCTP_TCB_UNLOCK(stcb);
5353                                         }
5354                                         SCTP_INP_RUNLOCK(inp);
5355                                 }
5356                         }
5357                         break;
5358                 }
5359         case SCTP_DEFAULT_PRINFO:
5360                 {
5361                         struct sctp_default_prinfo *info;
5362
5363                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5364                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5365
5366                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5367                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5368                                 error = EINVAL;
5369                                 break;
5370                         }
5371                         if (stcb) {
5372                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5373                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5374                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5375                                 SCTP_TCB_UNLOCK(stcb);
5376                         } else {
5377                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5378                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5379                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5380                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5381                                         SCTP_INP_WLOCK(inp);
5382                                         inp->def_send.sinfo_flags &= 0xfff0;
5383                                         inp->def_send.sinfo_flags |= info->pr_policy;
5384                                         inp->def_send.sinfo_timetolive = info->pr_value;
5385                                         SCTP_INP_WUNLOCK(inp);
5386                                 }
5387                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5388                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5389                                         SCTP_INP_RLOCK(inp);
5390                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5391                                                 SCTP_TCB_LOCK(stcb);
5392                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5393                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5394                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5395                                                 SCTP_TCB_UNLOCK(stcb);
5396                                         }
5397                                         SCTP_INP_RUNLOCK(inp);
5398                                 }
5399                         }
5400                         break;
5401                 }
5402         case SCTP_PEER_ADDR_THLDS:
5403                 /* Applies to the specific association */
5404                 {
5405                         struct sctp_paddrthlds *thlds;
5406                         struct sctp_nets *net;
5407
5408                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5409                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5410                         net = NULL;
5411                         if (stcb) {
5412                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5413                         } else {
5414                                 /*
5415                                  * We increment here since
5416                                  * sctp_findassociation_ep_addr() wil do a
5417                                  * decrement if it finds the stcb as long as
5418                                  * the locked tcb (last argument) is NOT a
5419                                  * TCB.. aka NULL.
5420                                  */
5421                                 SCTP_INP_INCR_REF(inp);
5422                                 stcb = sctp_findassociation_ep_addr(&inp,
5423                                     (struct sockaddr *)&thlds->spt_assoc_id,
5424                                     &net, NULL, NULL);
5425                                 if (stcb == NULL) {
5426                                         SCTP_INP_DECR_REF(inp);
5427                                 }
5428                         }
5429                         if (stcb && (net == NULL)) {
5430                                 struct sockaddr *sa;
5431
5432                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5433 #ifdef INET
5434                                 if (sa->sa_family == AF_INET) {
5435
5436                                         struct sockaddr_in *sin;
5437
5438                                         sin = (struct sockaddr_in *)sa;
5439                                         if (sin->sin_addr.s_addr) {
5440                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5441                                                 SCTP_TCB_UNLOCK(stcb);
5442                                                 error = EINVAL;
5443                                                 break;
5444                                         }
5445                                 } else
5446 #endif
5447 #ifdef INET6
5448                                 if (sa->sa_family == AF_INET6) {
5449                                         struct sockaddr_in6 *sin6;
5450
5451                                         sin6 = (struct sockaddr_in6 *)sa;
5452                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5453                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5454                                                 SCTP_TCB_UNLOCK(stcb);
5455                                                 error = EINVAL;
5456                                                 break;
5457                                         }
5458                                 } else
5459 #endif
5460                                 {
5461                                         error = EAFNOSUPPORT;
5462                                         SCTP_TCB_UNLOCK(stcb);
5463                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5464                                         break;
5465                                 }
5466                         }
5467                         if (stcb) {
5468                                 if (net) {
5469                                         if (net->dest_state & SCTP_ADDR_PF) {
5470                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5471                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5472                                                         net->dest_state &= ~SCTP_ADDR_PF;
5473                                                 }
5474                                         } else {
5475                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5476                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5477                                                         net->dest_state |= SCTP_ADDR_PF;
5478                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5479                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5480                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5481                                                 }
5482                                         }
5483                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5484                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5485                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5486                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5487                                                 }
5488                                         } else {
5489                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5490                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5491                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5492                                                 }
5493                                         }
5494                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5495                                         net->pf_threshold = thlds->spt_pathpfthld;
5496                                 } else {
5497                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5498                                                 if (net->dest_state & SCTP_ADDR_PF) {
5499                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5500                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5501                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5502                                                         }
5503                                                 } else {
5504                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5505                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5506                                                                 net->dest_state |= SCTP_ADDR_PF;
5507                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5508                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5509                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5510                                                         }
5511                                                 }
5512                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5513                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5514                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5515                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5516                                                         }
5517                                                 } else {
5518                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5519                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5520                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5521                                                         }
5522                                                 }
5523                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5524                                                 net->pf_threshold = thlds->spt_pathpfthld;
5525                                         }
5526                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5527                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5528                                 }
5529                         } else {
5530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5532                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5533                                         SCTP_INP_WLOCK(inp);
5534                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5535                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5536                                         SCTP_INP_WUNLOCK(inp);
5537                                 } else {
5538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5539                                         error = EINVAL;
5540                                 }
5541                         }
5542                         break;
5543                 }
5544         default:
5545                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5546                 error = ENOPROTOOPT;
5547                 break;
5548         }                       /* end switch (opt) */
5549         return (error);
5550 }
5551
5552 int
5553 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5554 {
5555         void *optval = NULL;
5556         size_t optsize = 0;
5557         struct sctp_inpcb *inp;
5558         void *p;
5559         int error = 0;
5560
5561         inp = (struct sctp_inpcb *)so->so_pcb;
5562         if (inp == 0) {
5563                 /* I made the same as TCP since we are not setup? */
5564                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5565                 return (ECONNRESET);
5566         }
5567         if (sopt->sopt_level != IPPROTO_SCTP) {
5568                 /* wrong proto level... send back up to IP */
5569 #ifdef INET6
5570                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5571                         error = ip6_ctloutput(so, sopt);
5572 #endif                          /* INET6 */
5573 #if defined(INET) && defined (INET6)
5574                 else
5575 #endif
5576 #ifdef INET
5577                         error = ip_ctloutput(so, sopt);
5578 #endif
5579                 return (error);
5580         }
5581         optsize = sopt->sopt_valsize;
5582         if (optsize) {
5583                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5584                 if (optval == NULL) {
5585                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5586                         return (ENOBUFS);
5587                 }
5588                 error = sooptcopyin(sopt, optval, optsize, optsize);
5589                 if (error) {
5590                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5591                         goto out;
5592                 }
5593         }
5594         p = (void *)sopt->sopt_td;
5595         if (sopt->sopt_dir == SOPT_SET) {
5596                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5597         } else if (sopt->sopt_dir == SOPT_GET) {
5598                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5599         } else {
5600                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5601                 error = EINVAL;
5602         }
5603         if ((error == 0) && (optval != NULL)) {
5604                 error = sooptcopyout(sopt, optval, optsize);
5605                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5606         } else if (optval != NULL) {
5607                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5608         }
5609 out:
5610         return (error);
5611 }
5612
5613 #ifdef INET
5614 static int
5615 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5616 {
5617         int error = 0;
5618         int create_lock_on = 0;
5619         uint32_t vrf_id;
5620         struct sctp_inpcb *inp;
5621         struct sctp_tcb *stcb = NULL;
5622
5623         inp = (struct sctp_inpcb *)so->so_pcb;
5624         if (inp == 0) {
5625                 /* I made the same as TCP since we are not setup? */
5626                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5627                 return (ECONNRESET);
5628         }
5629         if (addr == NULL) {
5630                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5631                 return EINVAL;
5632         }
5633         switch (addr->sa_family) {
5634 #ifdef INET6
5635         case AF_INET6:
5636                 {
5637                         struct sockaddr_in6 *sin6p;
5638
5639                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5640                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5641                                 return (EINVAL);
5642                         }
5643                         sin6p = (struct sockaddr_in6 *)addr;
5644                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5646                                 return (error);
5647                         }
5648                         break;
5649                 }
5650 #endif
5651 #ifdef INET
5652         case AF_INET:
5653                 {
5654                         struct sockaddr_in *sinp;
5655
5656                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5657                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5658                                 return (EINVAL);
5659                         }
5660                         sinp = (struct sockaddr_in *)addr;
5661                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5662                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5663                                 return (error);
5664                         }
5665                         break;
5666                 }
5667 #endif
5668         default:
5669                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5670                 return (EAFNOSUPPORT);
5671         }
5672         SCTP_INP_INCR_REF(inp);
5673         SCTP_ASOC_CREATE_LOCK(inp);
5674         create_lock_on = 1;
5675
5676
5677         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5678             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5679                 /* Should I really unlock ? */
5680                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5681                 error = EFAULT;
5682                 goto out_now;
5683         }
5684 #ifdef INET6
5685         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5686             (addr->sa_family == AF_INET6)) {
5687                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5688                 error = EINVAL;
5689                 goto out_now;
5690         }
5691 #endif                          /* INET6 */
5692         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5693             SCTP_PCB_FLAGS_UNBOUND) {
5694                 /* Bind a ephemeral port */
5695                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5696                 if (error) {
5697                         goto out_now;
5698                 }
5699         }
5700         /* Now do we connect? */
5701         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5702             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5703                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5704                 error = EINVAL;
5705                 goto out_now;
5706         }
5707         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5708             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5709                 /* We are already connected AND the TCP model */
5710                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5711                 error = EADDRINUSE;
5712                 goto out_now;
5713         }
5714         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
5715                 SCTP_INP_RLOCK(inp);
5716                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
5717                 SCTP_INP_RUNLOCK(inp);
5718         } else {
5719                 /*
5720                  * We increment here since sctp_findassociation_ep_addr()
5721                  * will do a decrement if it finds the stcb as long as the
5722                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
5723                  */
5724                 SCTP_INP_INCR_REF(inp);
5725                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
5726                 if (stcb == NULL) {
5727                         SCTP_INP_DECR_REF(inp);
5728                 } else {
5729                         SCTP_TCB_UNLOCK(stcb);
5730                 }
5731         }
5732         if (stcb != NULL) {
5733                 /* Already have or am bring up an association */
5734                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
5735                 error = EALREADY;
5736                 goto out_now;
5737         }
5738         vrf_id = inp->def_vrf_id;
5739         /* We are GOOD to go */
5740         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
5741         if (stcb == NULL) {
5742                 /* Gak! no memory */
5743                 goto out_now;
5744         }
5745         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
5746                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
5747                 /* Set the connected flag so we can queue data */
5748                 soisconnecting(so);
5749         }
5750         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
5751         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
5752
5753         /* initialize authentication parameters for the assoc */
5754         sctp_initialize_auth_params(inp, stcb);
5755
5756         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
5757         SCTP_TCB_UNLOCK(stcb);
5758 out_now:
5759         if (create_lock_on) {
5760                 SCTP_ASOC_CREATE_UNLOCK(inp);
5761         }
5762         SCTP_INP_DECR_REF(inp);
5763         return error;
5764 }
5765
5766 #endif
5767
5768 int
5769 sctp_listen(struct socket *so, int backlog, struct thread *p)
5770 {
5771         /*
5772          * Note this module depends on the protocol processing being called
5773          * AFTER any socket level flags and backlog are applied to the
5774          * socket. The traditional way that the socket flags are applied is
5775          * AFTER protocol processing. We have made a change to the
5776          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
5777          * place if the socket API for SCTP is to work properly.
5778          */
5779
5780         int error = 0;
5781         struct sctp_inpcb *inp;
5782
5783         inp = (struct sctp_inpcb *)so->so_pcb;
5784         if (inp == 0) {
5785                 /* I made the same as TCP since we are not setup? */
5786                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5787                 return (ECONNRESET);
5788         }
5789         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
5790                 /* See if we have a listener */
5791                 struct sctp_inpcb *tinp;
5792                 union sctp_sockstore store, *sp;
5793
5794                 sp = &store;
5795                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5796                         /* not bound all */
5797                         struct sctp_laddr *laddr;
5798
5799                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5800                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
5801                                 switch (sp->sa.sa_family) {
5802 #ifdef INET
5803                                 case AF_INET:
5804                                         sp->sin.sin_port = inp->sctp_lport;
5805                                         break;
5806 #endif
5807 #ifdef INET6
5808                                 case AF_INET6:
5809                                         sp->sin6.sin6_port = inp->sctp_lport;
5810                                         break;
5811 #endif
5812                                 default:
5813                                         break;
5814                                 }
5815                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
5816                                 if (tinp && (tinp != inp) &&
5817                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
5818                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
5819                                     (tinp->sctp_socket->so_qlimit)) {
5820                                         /*
5821                                          * we have a listener already and
5822                                          * its not this inp.
5823                                          */
5824                                         SCTP_INP_DECR_REF(tinp);
5825                                         return (EADDRINUSE);
5826                                 } else if (tinp) {
5827                                         SCTP_INP_DECR_REF(tinp);
5828                                 }
5829                         }
5830                 } else {
5831                         /* Setup a local addr bound all */
5832                         memset(&store, 0, sizeof(store));
5833                         switch (sp->sa.sa_family) {
5834 #ifdef INET
5835                         case AF_INET:
5836                                 store.sin.sin_port = inp->sctp_lport;
5837                                 break;
5838 #endif
5839 #ifdef INET6
5840                         case AF_INET6:
5841                                 sp->sin6.sin6_port = inp->sctp_lport;
5842                                 break;
5843 #endif
5844                         default:
5845                                 break;
5846                         }
5847 #ifdef INET6
5848                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5849                                 store.sa.sa_family = AF_INET6;
5850                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
5851                         }
5852 #endif
5853 #ifdef INET
5854                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
5855                                 store.sa.sa_family = AF_INET;
5856                                 store.sa.sa_len = sizeof(struct sockaddr_in);
5857                         }
5858 #endif
5859                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
5860                         if (tinp && (tinp != inp) &&
5861                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
5862                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
5863                             (tinp->sctp_socket->so_qlimit)) {
5864                                 /*
5865                                  * we have a listener already and its not
5866                                  * this inp.
5867                                  */
5868                                 SCTP_INP_DECR_REF(tinp);
5869                                 return (EADDRINUSE);
5870                         } else if (tinp) {
5871                                 SCTP_INP_DECR_REF(inp);
5872                         }
5873                 }
5874         }
5875         SCTP_INP_RLOCK(inp);
5876 #ifdef SCTP_LOCK_LOGGING
5877         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
5878                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
5879         }
5880 #endif
5881         SOCK_LOCK(so);
5882         error = solisten_proto_check(so);
5883         if (error) {
5884                 SOCK_UNLOCK(so);
5885                 SCTP_INP_RUNLOCK(inp);
5886                 return (error);
5887         }
5888         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
5889             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5890                 /*
5891                  * The unlucky case - We are in the tcp pool with this guy.
5892                  * - Someone else is in the main inp slot. - We must move
5893                  * this guy (the listener) to the main slot - We must then
5894                  * move the guy that was listener to the TCP Pool.
5895                  */
5896                 if (sctp_swap_inpcb_for_listen(inp)) {
5897                         goto in_use;
5898                 }
5899         }
5900         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5901             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5902                 /* We are already connected AND the TCP model */
5903 in_use:
5904                 SCTP_INP_RUNLOCK(inp);
5905                 SOCK_UNLOCK(so);
5906                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5907                 return (EADDRINUSE);
5908         }
5909         SCTP_INP_RUNLOCK(inp);
5910         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
5911                 /* We must do a bind. */
5912                 SOCK_UNLOCK(so);
5913                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
5914                         /* bind error, probably perm */
5915                         return (error);
5916                 }
5917                 SOCK_LOCK(so);
5918         }
5919         /* It appears for 7.0 and on, we must always call this. */
5920         solisten_proto(so, backlog);
5921         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
5922                 /* remove the ACCEPTCONN flag for one-to-many sockets */
5923                 so->so_options &= ~SO_ACCEPTCONN;
5924         }
5925         if (backlog == 0) {
5926                 /* turning off listen */
5927                 so->so_options &= ~SO_ACCEPTCONN;
5928         }
5929         SOCK_UNLOCK(so);
5930         return (error);
5931 }
5932
5933 static int sctp_defered_wakeup_cnt = 0;
5934
5935 int
5936 sctp_accept(struct socket *so, struct sockaddr **addr)
5937 {
5938         struct sctp_tcb *stcb;
5939         struct sctp_inpcb *inp;
5940         union sctp_sockstore store;
5941
5942 #ifdef INET6
5943         int error;
5944
5945 #endif
5946         inp = (struct sctp_inpcb *)so->so_pcb;
5947
5948         if (inp == 0) {
5949                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5950                 return (ECONNRESET);
5951         }
5952         SCTP_INP_RLOCK(inp);
5953         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
5954                 SCTP_INP_RUNLOCK(inp);
5955                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
5956                 return (EOPNOTSUPP);
5957         }
5958         if (so->so_state & SS_ISDISCONNECTED) {
5959                 SCTP_INP_RUNLOCK(inp);
5960                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
5961                 return (ECONNABORTED);
5962         }
5963         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5964         if (stcb == NULL) {
5965                 SCTP_INP_RUNLOCK(inp);
5966                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5967                 return (ECONNRESET);
5968         }
5969         SCTP_TCB_LOCK(stcb);
5970         SCTP_INP_RUNLOCK(inp);
5971         store = stcb->asoc.primary_destination->ro._l_addr;
5972         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
5973         SCTP_TCB_UNLOCK(stcb);
5974         switch (store.sa.sa_family) {
5975 #ifdef INET
5976         case AF_INET:
5977                 {
5978                         struct sockaddr_in *sin;
5979
5980                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
5981                         if (sin == NULL)
5982                                 return (ENOMEM);
5983                         sin->sin_family = AF_INET;
5984                         sin->sin_len = sizeof(*sin);
5985                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
5986                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
5987                         *addr = (struct sockaddr *)sin;
5988                         break;
5989                 }
5990 #endif
5991 #ifdef INET6
5992         case AF_INET6:
5993                 {
5994                         struct sockaddr_in6 *sin6;
5995
5996                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
5997                         if (sin6 == NULL)
5998                                 return (ENOMEM);
5999                         sin6->sin6_family = AF_INET6;
6000                         sin6->sin6_len = sizeof(*sin6);
6001                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
6002
6003                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
6004                         if ((error = sa6_recoverscope(sin6)) != 0) {
6005                                 SCTP_FREE_SONAME(sin6);
6006                                 return (error);
6007                         }
6008                         *addr = (struct sockaddr *)sin6;
6009                         break;
6010                 }
6011 #endif
6012         default:
6013                 /* TSNH */
6014                 break;
6015         }
6016         /* Wake any delayed sleep action */
6017         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6018                 SCTP_INP_WLOCK(inp);
6019                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6020                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6021                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6022                         SCTP_INP_WUNLOCK(inp);
6023                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6024                         if (sowriteable(inp->sctp_socket)) {
6025                                 sowwakeup_locked(inp->sctp_socket);
6026                         } else {
6027                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6028                         }
6029                         SCTP_INP_WLOCK(inp);
6030                 }
6031                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6032                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6033                         SCTP_INP_WUNLOCK(inp);
6034                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6035                         if (soreadable(inp->sctp_socket)) {
6036                                 sctp_defered_wakeup_cnt++;
6037                                 sorwakeup_locked(inp->sctp_socket);
6038                         } else {
6039                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6040                         }
6041                         SCTP_INP_WLOCK(inp);
6042                 }
6043                 SCTP_INP_WUNLOCK(inp);
6044         }
6045         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6046                 SCTP_TCB_LOCK(stcb);
6047                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6048         }
6049         return (0);
6050 }
6051
6052 #ifdef INET
6053 int
6054 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6055 {
6056         struct sockaddr_in *sin;
6057         uint32_t vrf_id;
6058         struct sctp_inpcb *inp;
6059         struct sctp_ifa *sctp_ifa;
6060
6061         /*
6062          * Do the malloc first in case it blocks.
6063          */
6064         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6065         if (sin == NULL)
6066                 return (ENOMEM);
6067         sin->sin_family = AF_INET;
6068         sin->sin_len = sizeof(*sin);
6069         inp = (struct sctp_inpcb *)so->so_pcb;
6070         if (!inp) {
6071                 SCTP_FREE_SONAME(sin);
6072                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6073                 return ECONNRESET;
6074         }
6075         SCTP_INP_RLOCK(inp);
6076         sin->sin_port = inp->sctp_lport;
6077         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6078                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6079                         struct sctp_tcb *stcb;
6080                         struct sockaddr_in *sin_a;
6081                         struct sctp_nets *net;
6082                         int fnd;
6083
6084                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6085                         if (stcb == NULL) {
6086                                 goto notConn;
6087                         }
6088                         fnd = 0;
6089                         sin_a = NULL;
6090                         SCTP_TCB_LOCK(stcb);
6091                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6092                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6093                                 if (sin_a == NULL)
6094                                         /* this will make coverity happy */
6095                                         continue;
6096
6097                                 if (sin_a->sin_family == AF_INET) {
6098                                         fnd = 1;
6099                                         break;
6100                                 }
6101                         }
6102                         if ((!fnd) || (sin_a == NULL)) {
6103                                 /* punt */
6104                                 SCTP_TCB_UNLOCK(stcb);
6105                                 goto notConn;
6106                         }
6107                         vrf_id = inp->def_vrf_id;
6108                         sctp_ifa = sctp_source_address_selection(inp,
6109                             stcb,
6110                             (sctp_route_t *) & net->ro,
6111                             net, 0, vrf_id);
6112                         if (sctp_ifa) {
6113                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6114                                 sctp_free_ifa(sctp_ifa);
6115                         }
6116                         SCTP_TCB_UNLOCK(stcb);
6117                 } else {
6118                         /* For the bound all case you get back 0 */
6119         notConn:
6120                         sin->sin_addr.s_addr = 0;
6121                 }
6122
6123         } else {
6124                 /* Take the first IPv4 address in the list */
6125                 struct sctp_laddr *laddr;
6126                 int fnd = 0;
6127
6128                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6129                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6130                                 struct sockaddr_in *sin_a;
6131
6132                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6133                                 sin->sin_addr = sin_a->sin_addr;
6134                                 fnd = 1;
6135                                 break;
6136                         }
6137                 }
6138                 if (!fnd) {
6139                         SCTP_FREE_SONAME(sin);
6140                         SCTP_INP_RUNLOCK(inp);
6141                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6142                         return ENOENT;
6143                 }
6144         }
6145         SCTP_INP_RUNLOCK(inp);
6146         (*addr) = (struct sockaddr *)sin;
6147         return (0);
6148 }
6149
6150 int
6151 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6152 {
6153         struct sockaddr_in *sin = (struct sockaddr_in *)*addr;
6154         int fnd;
6155         struct sockaddr_in *sin_a;
6156         struct sctp_inpcb *inp;
6157         struct sctp_tcb *stcb;
6158         struct sctp_nets *net;
6159
6160         /* Do the malloc first in case it blocks. */
6161         inp = (struct sctp_inpcb *)so->so_pcb;
6162         if ((inp == NULL) ||
6163             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6164                 /* UDP type and listeners will drop out here */
6165                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6166                 return (ENOTCONN);
6167         }
6168         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6169         if (sin == NULL)
6170                 return (ENOMEM);
6171         sin->sin_family = AF_INET;
6172         sin->sin_len = sizeof(*sin);
6173
6174         /* We must recapture incase we blocked */
6175         inp = (struct sctp_inpcb *)so->so_pcb;
6176         if (!inp) {
6177                 SCTP_FREE_SONAME(sin);
6178                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6179                 return ECONNRESET;
6180         }
6181         SCTP_INP_RLOCK(inp);
6182         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6183         if (stcb) {
6184                 SCTP_TCB_LOCK(stcb);
6185         }
6186         SCTP_INP_RUNLOCK(inp);
6187         if (stcb == NULL) {
6188                 SCTP_FREE_SONAME(sin);
6189                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6190                 return ECONNRESET;
6191         }
6192         fnd = 0;
6193         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6194                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6195                 if (sin_a->sin_family == AF_INET) {
6196                         fnd = 1;
6197                         sin->sin_port = stcb->rport;
6198                         sin->sin_addr = sin_a->sin_addr;
6199                         break;
6200                 }
6201         }
6202         SCTP_TCB_UNLOCK(stcb);
6203         if (!fnd) {
6204                 /* No IPv4 address */
6205                 SCTP_FREE_SONAME(sin);
6206                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6207                 return ENOENT;
6208         }
6209         (*addr) = (struct sockaddr *)sin;
6210         return (0);
6211 }
6212
6213 #ifdef INET
6214 struct pr_usrreqs sctp_usrreqs = {
6215         .pru_abort = sctp_abort,
6216         .pru_accept = sctp_accept,
6217         .pru_attach = sctp_attach,
6218         .pru_bind = sctp_bind,
6219         .pru_connect = sctp_connect,
6220         .pru_control = in_control,
6221         .pru_close = sctp_close,
6222         .pru_detach = sctp_close,
6223         .pru_sopoll = sopoll_generic,
6224         .pru_flush = sctp_flush,
6225         .pru_disconnect = sctp_disconnect,
6226         .pru_listen = sctp_listen,
6227         .pru_peeraddr = sctp_peeraddr,
6228         .pru_send = sctp_sendm,
6229         .pru_shutdown = sctp_shutdown,
6230         .pru_sockaddr = sctp_ingetaddr,
6231         .pru_sosend = sctp_sosend,
6232         .pru_soreceive = sctp_soreceive
6233 };
6234
6235 #endif
6236 #endif