sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern const struct sctp_cc_functions sctp_cc_functions[];
  58 extern const struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 #ifdef VIMAGE
  93 static void
  94 sctp_finish(void *unused __unused)
  95 {
  96         sctp_pcb_finish();
  97 }
  98
  99 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 100 #endif
 101
 102 void
 103 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 104 {
 105         struct sctp_tmit_chunk *chk;
 106         uint16_t overhead;
 107
 108         /* Adjust that too */
 109         stcb->asoc.smallest_mtu = nxtsz;
 110         /* now off to subtract IP_DF flag if needed */
 111         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 112         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 113                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 114         }
 115         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 116                 if ((chk->send_size + overhead) > nxtsz) {
 117                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 118                 }
 119         }
 120         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 121                 if ((chk->send_size + overhead) > nxtsz) {
 122                         /*
 123                          * For this guy we also mark for immediate resend
 124                          * since we sent to big of chunk
 125                          */
 126                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 127                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 128                                 sctp_flight_size_decrease(chk);
 129                                 sctp_total_flight_decrease(stcb, chk);
 130                                 chk->sent = SCTP_DATAGRAM_RESEND;
 131                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 132                                 chk->rec.data.doing_fast_retransmit = 0;
 133                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 134                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 135                                             chk->whoTo->flight_size,
 136                                             chk->book_size,
 137                                             (uint32_t)(uintptr_t)chk->whoTo,
 138                                             chk->rec.data.tsn);
 139                                 }
 140                                 /* Clear any time so NO RTT is being done */
 141                                 chk->do_rtt = 0;
 142                         }
 143                 }
 144         }
 145 }
 146
 147 #ifdef INET
 148 void
 149 sctp_notify(struct sctp_inpcb *inp,
 150     struct sctp_tcb *stcb,
 151     struct sctp_nets *net,
 152     uint8_t icmp_type,
 153     uint8_t icmp_code,
 154     uint16_t ip_len,
 155     uint32_t next_mtu)
 156 {
 157 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 158         struct socket *so;
 159 #endif
 160         int timer_stopped;
 161
 162         if (icmp_type != ICMP_UNREACH) {
 163                 /* We only care about unreachable */
 164                 SCTP_TCB_UNLOCK(stcb);
 165                 return;
 166         }
 167         if ((icmp_code == ICMP_UNREACH_NET) ||
 168             (icmp_code == ICMP_UNREACH_HOST) ||
 169             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 170             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 171             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 172             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 173             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 174             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 175                 /* Mark the net unreachable. */
 176                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 177                         /* OK, that destination is NOT reachable. */
 178                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 179                         net->dest_state &= ~SCTP_ADDR_PF;
 180                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 181                             stcb, 0,
 182                             (void *)net, SCTP_SO_NOT_LOCKED);
 183                 }
 184                 SCTP_TCB_UNLOCK(stcb);
 185         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 186             (icmp_code == ICMP_UNREACH_PORT)) {
 187                 /* Treat it like an ABORT. */
 188                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 189 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 190                 so = SCTP_INP_SO(inp);
 191                 atomic_add_int(&stcb->asoc.refcnt, 1);
 192                 SCTP_TCB_UNLOCK(stcb);
 193                 SCTP_SOCKET_LOCK(so, 1);
 194                 SCTP_TCB_LOCK(stcb);
 195                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 196 #endif
 197                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 199 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 200                 SCTP_SOCKET_UNLOCK(so, 1);
 201                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 202 #endif
 203                 /* no need to unlock here, since the TCB is gone */
 204         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 205                 /* Find the next (smaller) MTU */
 206                 if (next_mtu == 0) {
 207                         /*
 208                          * Old type router that does not tell us what the
 209                          * next MTU is. Rats we will have to guess (in a
 210                          * educated fashion of course).
 211                          */
 212                         next_mtu = sctp_get_prev_mtu(ip_len);
 213                 }
 214                 /* Stop the PMTU timer. */
 215                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 216                         timer_stopped = 1;
 217                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 218                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 219                 } else {
 220                         timer_stopped = 0;
 221                 }
 222                 /* Update the path MTU. */
 223                 if (net->port) {
 224                         next_mtu -= sizeof(struct udphdr);
 225                 }
 226                 if (net->mtu > next_mtu) {
 227                         net->mtu = next_mtu;
 228                         if (net->port) {
 229                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 230                         } else {
 231                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 232                         }
 233                 }
 234                 /* Update the association MTU */
 235                 if (stcb->asoc.smallest_mtu > next_mtu) {
 236                         sctp_pathmtu_adjustment(stcb, next_mtu);
 237                 }
 238                 /* Finally, start the PMTU timer if it was running before. */
 239                 if (timer_stopped) {
 240                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 241                 }
 242                 SCTP_TCB_UNLOCK(stcb);
 243         } else {
 244                 SCTP_TCB_UNLOCK(stcb);
 245         }
 246 }
 247
 248 void
 249 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 250 {
 251         struct ip *outer_ip;
 252         struct ip *inner_ip;
 253         struct sctphdr *sh;
 254         struct icmp *icmp;
 255         struct sctp_inpcb *inp;
 256         struct sctp_tcb *stcb;
 257         struct sctp_nets *net;
 258         struct sctp_init_chunk *ch;
 259         struct sockaddr_in src, dst;
 260
 261         if (sa->sa_family != AF_INET ||
 262             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 263                 return;
 264         }
 265         if (PRC_IS_REDIRECT(cmd)) {
 266                 vip = NULL;
 267         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 268                 return;
 269         }
 270         if (vip != NULL) {
 271                 inner_ip = (struct ip *)vip;
 272                 icmp = (struct icmp *)((caddr_t)inner_ip -
 273                     (sizeof(struct icmp) - sizeof(struct ip)));
 274                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 275                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 276                 memset(&src, 0, sizeof(struct sockaddr_in));
 277                 src.sin_family = AF_INET;
 278                 src.sin_len = sizeof(struct sockaddr_in);
 279                 src.sin_port = sh->src_port;
 280                 src.sin_addr = inner_ip->ip_src;
 281                 memset(&dst, 0, sizeof(struct sockaddr_in));
 282                 dst.sin_family = AF_INET;
 283                 dst.sin_len = sizeof(struct sockaddr_in);
 284                 dst.sin_port = sh->dest_port;
 285                 dst.sin_addr = inner_ip->ip_dst;
 286                 /*
 287                  * 'dst' holds the dest of the packet that failed to be
 288                  * sent. 'src' holds our local endpoint address. Thus we
 289                  * reverse the dst and the src in the lookup.
 290                  */
 291                 inp = NULL;
 292                 net = NULL;
 293                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 294                     (struct sockaddr *)&src,
 295                     &inp, &net, 1,
 296                     SCTP_DEFAULT_VRFID);
 297                 if ((stcb != NULL) &&
 298                     (net != NULL) &&
 299                     (inp != NULL)) {
 300                         /* Check the verification tag */
 301                         if (ntohl(sh->v_tag) != 0) {
 302                                 /*
 303                                  * This must be the verification tag used
 304                                  * for sending out packets. We don't
 305                                  * consider packets reflecting the
 306                                  * verification tag.
 307                                  */
 308                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 309                                         SCTP_TCB_UNLOCK(stcb);
 310                                         return;
 311                                 }
 312                         } else {
 313                                 if (ntohs(outer_ip->ip_len) >=
 314                                     sizeof(struct ip) +
 315                                     8 + (inner_ip->ip_hl << 2) + 20) {
 316                                         /*
 317                                          * In this case we can check if we
 318                                          * got an INIT chunk and if the
 319                                          * initiate tag matches.
 320                                          */
 321                                         ch = (struct sctp_init_chunk *)(sh + 1);
 322                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 323                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 324                                                 SCTP_TCB_UNLOCK(stcb);
 325                                                 return;
 326                                         }
 327                                 } else {
 328                                         SCTP_TCB_UNLOCK(stcb);
 329                                         return;
 330                                 }
 331                         }
 332                         sctp_notify(inp, stcb, net,
 333                             icmp->icmp_type,
 334                             icmp->icmp_code,
 335                             ntohs(inner_ip->ip_len),
 336                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 337                 } else {
 338                         if ((stcb == NULL) && (inp != NULL)) {
 339                                 /* reduce ref-count */
 340                                 SCTP_INP_WLOCK(inp);
 341                                 SCTP_INP_DECR_REF(inp);
 342                                 SCTP_INP_WUNLOCK(inp);
 343                         }
 344                         if (stcb) {
 345                                 SCTP_TCB_UNLOCK(stcb);
 346                         }
 347                 }
 348         }
 349         return;
 350 }
 351 #endif
 352
 353 static int
 354 sctp_getcred(SYSCTL_HANDLER_ARGS)
 355 {
 356         struct xucred xuc;
 357         struct sockaddr_in addrs[2];
 358         struct sctp_inpcb *inp;
 359         struct sctp_nets *net;
 360         struct sctp_tcb *stcb;
 361         int error;
 362         uint32_t vrf_id;
 363
 364         /* FIX, for non-bsd is this right? */
 365         vrf_id = SCTP_DEFAULT_VRFID;
 366
 367         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 368
 369         if (error)
 370                 return (error);
 371
 372         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 373         if (error)
 374                 return (error);
 375
 376         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 377             sintosa(&addrs[0]),
 378             &inp, &net, 1, vrf_id);
 379         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 380                 if ((inp != NULL) && (stcb == NULL)) {
 381                         /* reduce ref-count */
 382                         SCTP_INP_WLOCK(inp);
 383                         SCTP_INP_DECR_REF(inp);
 384                         goto cred_can_cont;
 385                 }
 386                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 387                 error = ENOENT;
 388                 goto out;
 389         }
 390         SCTP_TCB_UNLOCK(stcb);
 391         /*
 392          * We use the write lock here, only since in the error leg we need
 393          * it. If we used RLOCK, then we would have to
 394          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 395          * Better to use higher wlock.
 396          */
 397         SCTP_INP_WLOCK(inp);
 398 cred_can_cont:
 399         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 400         if (error) {
 401                 SCTP_INP_WUNLOCK(inp);
 402                 goto out;
 403         }
 404         cru2x(inp->sctp_socket->so_cred, &xuc);
 405         SCTP_INP_WUNLOCK(inp);
 406         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 407 out:
 408         return (error);
 409 }
 410
 411 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 412     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 413
 414
 415 #ifdef INET
 416 static void
 417 sctp_abort(struct socket *so)
 418 {
 419         struct sctp_inpcb *inp;
 420         uint32_t flags;
 421
 422         inp = (struct sctp_inpcb *)so->so_pcb;
 423         if (inp == NULL) {
 424                 return;
 425         }
 426 sctp_must_try_again:
 427         flags = inp->sctp_flags;
 428 #ifdef SCTP_LOG_CLOSING
 429         sctp_log_closing(inp, NULL, 17);
 430 #endif
 431         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 432             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 433 #ifdef SCTP_LOG_CLOSING
 434                 sctp_log_closing(inp, NULL, 16);
 435 #endif
 436                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 437                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 438                 SOCK_LOCK(so);
 439                 SCTP_SB_CLEAR(so->so_snd);
 440                 /*
 441                  * same for the rcv ones, they are only here for the
 442                  * accounting/select.
 443                  */
 444                 SCTP_SB_CLEAR(so->so_rcv);
 445
 446                 /* Now null out the reference, we are completely detached. */
 447                 so->so_pcb = NULL;
 448                 SOCK_UNLOCK(so);
 449         } else {
 450                 flags = inp->sctp_flags;
 451                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 452                         goto sctp_must_try_again;
 453                 }
 454         }
 455         return;
 456 }
 457
 458 static int
 459 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 460 {
 461         struct sctp_inpcb *inp;
 462         struct inpcb *ip_inp;
 463         int error;
 464         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 465
 466         inp = (struct sctp_inpcb *)so->so_pcb;
 467         if (inp != NULL) {
 468                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 469                 return (EINVAL);
 470         }
 471         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 472                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 473                 if (error) {
 474                         return (error);
 475                 }
 476         }
 477         error = sctp_inpcb_alloc(so, vrf_id);
 478         if (error) {
 479                 return (error);
 480         }
 481         inp = (struct sctp_inpcb *)so->so_pcb;
 482         SCTP_INP_WLOCK(inp);
 483         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 484         ip_inp = &inp->ip_inp.inp;
 485         ip_inp->inp_vflag |= INP_IPV4;
 486         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 487         SCTP_INP_WUNLOCK(inp);
 488         return (0);
 489 }
 490
 491 static int
 492 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 493 {
 494         struct sctp_inpcb *inp;
 495
 496         inp = (struct sctp_inpcb *)so->so_pcb;
 497         if (inp == NULL) {
 498                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 499                 return (EINVAL);
 500         }
 501         if (addr != NULL) {
 502                 if ((addr->sa_family != AF_INET) ||
 503                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 504                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 505                         return (EINVAL);
 506                 }
 507         }
 508         return (sctp_inpcb_bind(so, addr, NULL, p));
 509 }
 510
 511 #endif
 512 void
 513 sctp_close(struct socket *so)
 514 {
 515         struct sctp_inpcb *inp;
 516         uint32_t flags;
 517
 518         inp = (struct sctp_inpcb *)so->so_pcb;
 519         if (inp == NULL)
 520                 return;
 521
 522         /*
 523          * Inform all the lower layer assoc that we are done.
 524          */
 525 sctp_must_try_again:
 526         flags = inp->sctp_flags;
 527 #ifdef SCTP_LOG_CLOSING
 528         sctp_log_closing(inp, NULL, 17);
 529 #endif
 530         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 531             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 532                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 533                     (so->so_rcv.sb_cc > 0)) {
 534 #ifdef SCTP_LOG_CLOSING
 535                         sctp_log_closing(inp, NULL, 13);
 536 #endif
 537                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 538                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 539                 } else {
 540 #ifdef SCTP_LOG_CLOSING
 541                         sctp_log_closing(inp, NULL, 14);
 542 #endif
 543                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 544                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 545                 }
 546                 /*
 547                  * The socket is now detached, no matter what the state of
 548                  * the SCTP association.
 549                  */
 550                 SOCK_LOCK(so);
 551                 SCTP_SB_CLEAR(so->so_snd);
 552                 /*
 553                  * same for the rcv ones, they are only here for the
 554                  * accounting/select.
 555                  */
 556                 SCTP_SB_CLEAR(so->so_rcv);
 557
 558                 /* Now null out the reference, we are completely detached. */
 559                 so->so_pcb = NULL;
 560                 SOCK_UNLOCK(so);
 561         } else {
 562                 flags = inp->sctp_flags;
 563                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 564                         goto sctp_must_try_again;
 565                 }
 566         }
 567         return;
 568 }
 569
 570
 571 int
 572 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 573     struct mbuf *control, struct thread *p);
 574
 575
 576 int
 577 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 578     struct mbuf *control, struct thread *p)
 579 {
 580         struct sctp_inpcb *inp;
 581         int error;
 582
 583         inp = (struct sctp_inpcb *)so->so_pcb;
 584         if (inp == NULL) {
 585                 if (control) {
 586                         sctp_m_freem(control);
 587                         control = NULL;
 588                 }
 589                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 590                 sctp_m_freem(m);
 591                 return (EINVAL);
 592         }
 593         /* Got to have an to address if we are NOT a connected socket */
 594         if ((addr == NULL) &&
 595             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 596             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 597                 goto connected_type;
 598         } else if (addr == NULL) {
 599                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 600                 error = EDESTADDRREQ;
 601                 sctp_m_freem(m);
 602                 if (control) {
 603                         sctp_m_freem(control);
 604                         control = NULL;
 605                 }
 606                 return (error);
 607         }
 608 #ifdef INET6
 609         if (addr->sa_family != AF_INET) {
 610                 /* must be a v4 address! */
 611                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 612                 sctp_m_freem(m);
 613                 if (control) {
 614                         sctp_m_freem(control);
 615                         control = NULL;
 616                 }
 617                 error = EDESTADDRREQ;
 618                 return (error);
 619         }
 620 #endif                          /* INET6 */
 621 connected_type:
 622         /* now what about control */
 623         if (control) {
 624                 if (inp->control) {
 625                         SCTP_PRINTF("huh? control set?\n");
 626                         sctp_m_freem(inp->control);
 627                         inp->control = NULL;
 628                 }
 629                 inp->control = control;
 630         }
 631         /* Place the data */
 632         if (inp->pkt) {
 633                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 634                 inp->pkt_last = m;
 635         } else {
 636                 inp->pkt_last = inp->pkt = m;
 637         }
 638         if (
 639         /* FreeBSD uses a flag passed */
 640             ((flags & PRUS_MORETOCOME) == 0)
 641             ) {
 642                 /*
 643                  * note with the current version this code will only be used
 644                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 645                  * re-defining sosend to use the sctp_sosend. One can
 646                  * optionally switch back to this code (by changing back the
 647                  * definitions) but this is not advisable. This code is used
 648                  * by FreeBSD when sending a file with sendfile() though.
 649                  */
 650                 int ret;
 651
 652                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 653                 inp->pkt = NULL;
 654                 inp->control = NULL;
 655                 return (ret);
 656         } else {
 657                 return (0);
 658         }
 659 }
 660
 661 int
 662 sctp_disconnect(struct socket *so)
 663 {
 664         struct sctp_inpcb *inp;
 665
 666         inp = (struct sctp_inpcb *)so->so_pcb;
 667         if (inp == NULL) {
 668                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 669                 return (ENOTCONN);
 670         }
 671         SCTP_INP_RLOCK(inp);
 672         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 673             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 674                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 675                         /* No connection */
 676                         SCTP_INP_RUNLOCK(inp);
 677                         return (0);
 678                 } else {
 679                         struct sctp_association *asoc;
 680                         struct sctp_tcb *stcb;
 681
 682                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 683                         if (stcb == NULL) {
 684                                 SCTP_INP_RUNLOCK(inp);
 685                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 686                                 return (EINVAL);
 687                         }
 688                         SCTP_TCB_LOCK(stcb);
 689                         asoc = &stcb->asoc;
 690                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 691                                 /* We are about to be freed, out of here */
 692                                 SCTP_TCB_UNLOCK(stcb);
 693                                 SCTP_INP_RUNLOCK(inp);
 694                                 return (0);
 695                         }
 696                         if (((so->so_options & SO_LINGER) &&
 697                             (so->so_linger == 0)) ||
 698                             (so->so_rcv.sb_cc > 0)) {
 699                                 if (SCTP_GET_STATE(asoc) !=
 700                                     SCTP_STATE_COOKIE_WAIT) {
 701                                         /* Left with Data unread */
 702                                         struct mbuf *err;
 703
 704                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 705                                         if (err) {
 706                                                 /*
 707                                                  * Fill in the user
 708                                                  * initiated abort
 709                                                  */
 710                                                 struct sctp_paramhdr *ph;
 711
 712                                                 ph = mtod(err, struct sctp_paramhdr *);
 713                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 714                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 715                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 716                                         }
 717                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 718                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 719                                 }
 720                                 SCTP_INP_RUNLOCK(inp);
 721                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 722                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 723                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 724                                 }
 725                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 726                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 727                                 /* No unlock tcb assoc is gone */
 728                                 return (0);
 729                         }
 730                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 731                             TAILQ_EMPTY(&asoc->sent_queue) &&
 732                             (asoc->stream_queue_cnt == 0)) {
 733                                 /* there is nothing queued to send, so done */
 734                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 735                                         goto abort_anyway;
 736                                 }
 737                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 738                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 739                                         /* only send SHUTDOWN 1st time thru */
 740                                         struct sctp_nets *netp;
 741
 742                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 743                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 744                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 745                                         }
 746                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 747                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 748                                         sctp_stop_timers_for_shutdown(stcb);
 749                                         if (stcb->asoc.alternate) {
 750                                                 netp = stcb->asoc.alternate;
 751                                         } else {
 752                                                 netp = stcb->asoc.primary_destination;
 753                                         }
 754                                         sctp_send_shutdown(stcb, netp);
 755                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 756                                             stcb->sctp_ep, stcb, netp);
 757                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 758                                             stcb->sctp_ep, stcb, netp);
 759                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 760                                 }
 761                         } else {
 762                                 /*
 763                                  * we still got (or just got) data to send,
 764                                  * so set SHUTDOWN_PENDING
 765                                  */
 766                                 /*
 767                                  * XXX sockets draft says that SCTP_EOF
 768                                  * should be sent with no data. currently,
 769                                  * we will allow user data to be sent first
 770                                  * and move to SHUTDOWN-PENDING
 771                                  */
 772                                 struct sctp_nets *netp;
 773
 774                                 if (stcb->asoc.alternate) {
 775                                         netp = stcb->asoc.alternate;
 776                                 } else {
 777                                         netp = stcb->asoc.primary_destination;
 778                                 }
 779
 780                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 781                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 782                                     netp);
 783                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 784                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 785                                 }
 786                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 787                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 788                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 789                                         struct mbuf *op_err;
 790
 791                         abort_anyway:
 792                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 793                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 794                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 795                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 796                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 797                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 798                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 799                                         }
 800                                         SCTP_INP_RUNLOCK(inp);
 801                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 802                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 803                                         return (0);
 804                                 } else {
 805                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 806                                 }
 807                         }
 808                         soisdisconnecting(so);
 809                         SCTP_TCB_UNLOCK(stcb);
 810                         SCTP_INP_RUNLOCK(inp);
 811                         return (0);
 812                 }
 813                 /* not reached */
 814         } else {
 815                 /* UDP model does not support this */
 816                 SCTP_INP_RUNLOCK(inp);
 817                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 818                 return (EOPNOTSUPP);
 819         }
 820 }
 821
 822 int
 823 sctp_flush(struct socket *so, int how)
 824 {
 825         /*
 826          * We will just clear out the values and let subsequent close clear
 827          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 828          * they will not be able to read the data, the socket will block
 829          * that from happening.
 830          */
 831         struct sctp_inpcb *inp;
 832
 833         inp = (struct sctp_inpcb *)so->so_pcb;
 834         if (inp == NULL) {
 835                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 836                 return (EINVAL);
 837         }
 838         SCTP_INP_RLOCK(inp);
 839         /* For the 1 to many model this does nothing */
 840         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 841                 SCTP_INP_RUNLOCK(inp);
 842                 return (0);
 843         }
 844         SCTP_INP_RUNLOCK(inp);
 845         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 846                 /*
 847                  * First make sure the sb will be happy, we don't use these
 848                  * except maybe the count
 849                  */
 850                 SCTP_INP_WLOCK(inp);
 851                 SCTP_INP_READ_LOCK(inp);
 852                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 853                 SCTP_INP_READ_UNLOCK(inp);
 854                 SCTP_INP_WUNLOCK(inp);
 855                 so->so_rcv.sb_cc = 0;
 856                 so->so_rcv.sb_mbcnt = 0;
 857                 so->so_rcv.sb_mb = NULL;
 858         }
 859         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 860                 /*
 861                  * First make sure the sb will be happy, we don't use these
 862                  * except maybe the count
 863                  */
 864                 so->so_snd.sb_cc = 0;
 865                 so->so_snd.sb_mbcnt = 0;
 866                 so->so_snd.sb_mb = NULL;
 867
 868         }
 869         return (0);
 870 }
 871
 872 int
 873 sctp_shutdown(struct socket *so)
 874 {
 875         struct sctp_inpcb *inp;
 876
 877         inp = (struct sctp_inpcb *)so->so_pcb;
 878         if (inp == NULL) {
 879                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 880                 return (EINVAL);
 881         }
 882         SCTP_INP_RLOCK(inp);
 883         /* For UDP model this is a invalid call */
 884         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 885             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 886                 /* Restore the flags that the soshutdown took away. */
 887                 SOCKBUF_LOCK(&so->so_rcv);
 888                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 889                 SOCKBUF_UNLOCK(&so->so_rcv);
 890                 /* This proc will wakeup for read and do nothing (I hope) */
 891                 SCTP_INP_RUNLOCK(inp);
 892                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 893                 return (EOPNOTSUPP);
 894         } else {
 895                 /*
 896                  * Ok, if we reach here its the TCP model and it is either a
 897                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 898                  * against it.
 899                  */
 900                 struct sctp_tcb *stcb;
 901                 struct sctp_association *asoc;
 902                 struct sctp_nets *netp;
 903
 904                 if ((so->so_state &
 905                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 906                         SCTP_INP_RUNLOCK(inp);
 907                         return (ENOTCONN);
 908                 }
 909                 socantsendmore(so);
 910
 911                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 912                 if (stcb == NULL) {
 913                         /*
 914                          * Ok, we hit the case that the shutdown call was
 915                          * made after an abort or something. Nothing to do
 916                          * now.
 917                          */
 918                         SCTP_INP_RUNLOCK(inp);
 919                         return (0);
 920                 }
 921                 SCTP_TCB_LOCK(stcb);
 922                 asoc = &stcb->asoc;
 923                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 924                         SCTP_TCB_UNLOCK(stcb);
 925                         SCTP_INP_RUNLOCK(inp);
 926                         return (0);
 927                 }
 928                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 929                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 930                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 931                         /*
 932                          * If we are not in or before ESTABLISHED, there is
 933                          * no protocol action required.
 934                          */
 935                         SCTP_TCB_UNLOCK(stcb);
 936                         SCTP_INP_RUNLOCK(inp);
 937                         return (0);
 938                 }
 939                 if (stcb->asoc.alternate) {
 940                         netp = stcb->asoc.alternate;
 941                 } else {
 942                         netp = stcb->asoc.primary_destination;
 943                 }
 944                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 945                     TAILQ_EMPTY(&asoc->send_queue) &&
 946                     TAILQ_EMPTY(&asoc->sent_queue) &&
 947                     (asoc->stream_queue_cnt == 0)) {
 948                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 949                                 goto abort_anyway;
 950                         }
 951                         /* there is nothing queued to send, so I'm done... */
 952                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 953                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 954                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 955                         sctp_stop_timers_for_shutdown(stcb);
 956                         sctp_send_shutdown(stcb, netp);
 957                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 958                             stcb->sctp_ep, stcb, netp);
 959                 } else {
 960                         /*
 961                          * We still got (or just got) data to send, so set
 962                          * SHUTDOWN_PENDING.
 963                          */
 964                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 965                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 966                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 967                         }
 968                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 969                             TAILQ_EMPTY(&asoc->sent_queue) &&
 970                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 971                                 struct mbuf *op_err;
 972
 973                 abort_anyway:
 974                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 975                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 976                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 977                                     op_err, SCTP_SO_LOCKED);
 978                                 SCTP_INP_RUNLOCK(inp);
 979                                 return (0);
 980                         }
 981                 }
 982                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 983                 /*
 984                  * XXX: Why do this in the case where we have still data
 985                  * queued?
 986                  */
 987                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 988                 SCTP_TCB_UNLOCK(stcb);
 989                 SCTP_INP_RUNLOCK(inp);
 990                 return (0);
 991         }
 992 }
 993
 994 /*
 995  * copies a "user" presentable address and removes embedded scope, etc.
 996  * returns 0 on success, 1 on error
 997  */
 998 static uint32_t
 999 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1000 {
1001 #ifdef INET6
1002         struct sockaddr_in6 lsa6;
1003
1004         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1005             &lsa6);
1006 #endif
1007         memcpy(ss, sa, sa->sa_len);
1008         return (0);
1009 }
1010
1011
1012
1013 /*
1014  * NOTE: assumes addr lock is held
1015  */
1016 static size_t
1017 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1018     struct sctp_tcb *stcb,
1019     size_t limit,
1020     struct sockaddr_storage *sas,
1021     uint32_t vrf_id)
1022 {
1023         struct sctp_ifn *sctp_ifn;
1024         struct sctp_ifa *sctp_ifa;
1025         size_t actual;
1026         int loopback_scope;
1027 #if defined(INET)
1028         int ipv4_local_scope, ipv4_addr_legal;
1029 #endif
1030 #if defined(INET6)
1031         int local_scope, site_scope, ipv6_addr_legal;
1032 #endif
1033         struct sctp_vrf *vrf;
1034
1035         actual = 0;
1036         if (limit <= 0)
1037                 return (actual);
1038
1039         if (stcb) {
1040                 /* Turn on all the appropriate scope */
1041                 loopback_scope = stcb->asoc.scope.loopback_scope;
1042 #if defined(INET)
1043                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1044                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1045 #endif
1046 #if defined(INET6)
1047                 local_scope = stcb->asoc.scope.local_scope;
1048                 site_scope = stcb->asoc.scope.site_scope;
1049                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1050 #endif
1051         } else {
1052                 /* Use generic values for endpoints. */
1053                 loopback_scope = 1;
1054 #if defined(INET)
1055                 ipv4_local_scope = 1;
1056 #endif
1057 #if defined(INET6)
1058                 local_scope = 1;
1059                 site_scope = 1;
1060 #endif
1061                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1062 #if defined(INET6)
1063                         ipv6_addr_legal = 1;
1064 #endif
1065 #if defined(INET)
1066                         if (SCTP_IPV6_V6ONLY(inp)) {
1067                                 ipv4_addr_legal = 0;
1068                         } else {
1069                                 ipv4_addr_legal = 1;
1070                         }
1071 #endif
1072                 } else {
1073 #if defined(INET6)
1074                         ipv6_addr_legal = 0;
1075 #endif
1076 #if defined(INET)
1077                         ipv4_addr_legal = 1;
1078 #endif
1079                 }
1080         }
1081         vrf = sctp_find_vrf(vrf_id);
1082         if (vrf == NULL) {
1083                 return (0);
1084         }
1085         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1086                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1087                         if ((loopback_scope == 0) &&
1088                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1089                                 /* Skip loopback if loopback_scope not set */
1090                                 continue;
1091                         }
1092                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1093                                 if (stcb) {
1094                                         /*
1095                                          * For the BOUND-ALL case, the list
1096                                          * associated with a TCB is Always
1097                                          * considered a reverse list.. i.e.
1098                                          * it lists addresses that are NOT
1099                                          * part of the association. If this
1100                                          * is one of those we must skip it.
1101                                          */
1102                                         if (sctp_is_addr_restricted(stcb,
1103                                             sctp_ifa)) {
1104                                                 continue;
1105                                         }
1106                                 }
1107                                 switch (sctp_ifa->address.sa.sa_family) {
1108 #ifdef INET
1109                                 case AF_INET:
1110                                         if (ipv4_addr_legal) {
1111                                                 struct sockaddr_in *sin;
1112
1113                                                 sin = &sctp_ifa->address.sin;
1114                                                 if (sin->sin_addr.s_addr == 0) {
1115                                                         /*
1116                                                          * we skip
1117                                                          * unspecifed
1118                                                          * addresses
1119                                                          */
1120                                                         continue;
1121                                                 }
1122                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1123                                                     &sin->sin_addr) != 0) {
1124                                                         continue;
1125                                                 }
1126                                                 if ((ipv4_local_scope == 0) &&
1127                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1128                                                         continue;
1129                                                 }
1130 #ifdef INET6
1131                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1132                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1133                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1134                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1135                                                         actual += sizeof(struct sockaddr_in6);
1136                                                 } else {
1137 #endif
1138                                                         memcpy(sas, sin, sizeof(*sin));
1139                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1140                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1141                                                         actual += sizeof(*sin);
1142 #ifdef INET6
1143                                                 }
1144 #endif
1145                                                 if (actual >= limit) {
1146                                                         return (actual);
1147                                                 }
1148                                         } else {
1149                                                 continue;
1150                                         }
1151                                         break;
1152 #endif
1153 #ifdef INET6
1154                                 case AF_INET6:
1155                                         if (ipv6_addr_legal) {
1156                                                 struct sockaddr_in6 *sin6;
1157
1158                                                 sin6 = &sctp_ifa->address.sin6;
1159                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1160                                                         /*
1161                                                          * we skip
1162                                                          * unspecifed
1163                                                          * addresses
1164                                                          */
1165                                                         continue;
1166                                                 }
1167                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1168                                                     &sin6->sin6_addr) != 0) {
1169                                                         continue;
1170                                                 }
1171                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1172                                                         if (local_scope == 0)
1173                                                                 continue;
1174                                                         if (sin6->sin6_scope_id == 0) {
1175                                                                 if (sa6_recoverscope(sin6) != 0)
1176                                                                         /*
1177                                                                          *
1178                                                                          * bad
1179                                                                          * link
1180                                                                          *
1181                                                                          * local
1182                                                                          *
1183                                                                          * address
1184                                                                          */
1185                                                                         continue;
1186                                                         }
1187                                                 }
1188                                                 if ((site_scope == 0) &&
1189                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1190                                                         continue;
1191                                                 }
1192                                                 memcpy(sas, sin6, sizeof(*sin6));
1193                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1194                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1195                                                 actual += sizeof(*sin6);
1196                                                 if (actual >= limit) {
1197                                                         return (actual);
1198                                                 }
1199                                         } else {
1200                                                 continue;
1201                                         }
1202                                         break;
1203 #endif
1204                                 default:
1205                                         /* TSNH */
1206                                         break;
1207                                 }
1208                         }
1209                 }
1210         } else {
1211                 struct sctp_laddr *laddr;
1212
1213                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1214                         if (stcb) {
1215                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1216                                         continue;
1217                                 }
1218                         }
1219                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1220                                 continue;
1221                         switch (laddr->ifa->address.sa.sa_family) {
1222 #ifdef INET
1223                         case AF_INET:
1224                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1225                                 break;
1226 #endif
1227 #ifdef INET6
1228                         case AF_INET6:
1229                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1230                                 break;
1231 #endif
1232                         default:
1233                                 /* TSNH */
1234                                 break;
1235                         }
1236                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1237                             laddr->ifa->address.sa.sa_len);
1238                         actual += laddr->ifa->address.sa.sa_len;
1239                         if (actual >= limit) {
1240                                 return (actual);
1241                         }
1242                 }
1243         }
1244         return (actual);
1245 }
1246
1247 static size_t
1248 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1249     struct sctp_tcb *stcb,
1250     size_t limit,
1251     struct sockaddr_storage *sas)
1252 {
1253         size_t size = 0;
1254
1255         SCTP_IPI_ADDR_RLOCK();
1256         /* fill up addresses for the endpoint's default vrf */
1257         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1258             inp->def_vrf_id);
1259         SCTP_IPI_ADDR_RUNLOCK();
1260         return (size);
1261 }
1262
1263 /*
1264  * NOTE: assumes addr lock is held
1265  */
1266 static int
1267 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1268 {
1269         int cnt = 0;
1270         struct sctp_vrf *vrf = NULL;
1271
1272         /*
1273          * In both sub-set bound an bound_all cases we return the MAXIMUM
1274          * number of addresses that you COULD get. In reality the sub-set
1275          * bound may have an exclusion list for a given TCB OR in the
1276          * bound-all case a TCB may NOT include the loopback or other
1277          * addresses as well.
1278          */
1279         vrf = sctp_find_vrf(vrf_id);
1280         if (vrf == NULL) {
1281                 return (0);
1282         }
1283         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1284                 struct sctp_ifn *sctp_ifn;
1285                 struct sctp_ifa *sctp_ifa;
1286
1287                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1288                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1289                                 /* Count them if they are the right type */
1290                                 switch (sctp_ifa->address.sa.sa_family) {
1291 #ifdef INET
1292                                 case AF_INET:
1293 #ifdef INET6
1294                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1295                                                 cnt += sizeof(struct sockaddr_in6);
1296                                         else
1297                                                 cnt += sizeof(struct sockaddr_in);
1298 #else
1299                                         cnt += sizeof(struct sockaddr_in);
1300 #endif
1301                                         break;
1302 #endif
1303 #ifdef INET6
1304                                 case AF_INET6:
1305                                         cnt += sizeof(struct sockaddr_in6);
1306                                         break;
1307 #endif
1308                                 default:
1309                                         break;
1310                                 }
1311                         }
1312                 }
1313         } else {
1314                 struct sctp_laddr *laddr;
1315
1316                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1317                         switch (laddr->ifa->address.sa.sa_family) {
1318 #ifdef INET
1319                         case AF_INET:
1320 #ifdef INET6
1321                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1322                                         cnt += sizeof(struct sockaddr_in6);
1323                                 else
1324                                         cnt += sizeof(struct sockaddr_in);
1325 #else
1326                                 cnt += sizeof(struct sockaddr_in);
1327 #endif
1328                                 break;
1329 #endif
1330 #ifdef INET6
1331                         case AF_INET6:
1332                                 cnt += sizeof(struct sockaddr_in6);
1333                                 break;
1334 #endif
1335                         default:
1336                                 break;
1337                         }
1338                 }
1339         }
1340         return (cnt);
1341 }
1342
1343 static int
1344 sctp_count_max_addresses(struct sctp_inpcb *inp)
1345 {
1346         int cnt = 0;
1347
1348         SCTP_IPI_ADDR_RLOCK();
1349         /* count addresses for the endpoint's default VRF */
1350         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1351         SCTP_IPI_ADDR_RUNLOCK();
1352         return (cnt);
1353 }
1354
1355 static int
1356 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1357     size_t optsize, void *p, int delay)
1358 {
1359         int error = 0;
1360         int creat_lock_on = 0;
1361         struct sctp_tcb *stcb = NULL;
1362         struct sockaddr *sa;
1363         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1364         uint32_t vrf_id;
1365         int bad_addresses = 0;
1366         sctp_assoc_t *a_id;
1367
1368         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1369
1370         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1371             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1372                 /* We are already connected AND the TCP model */
1373                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1374                 return (EADDRINUSE);
1375         }
1376         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1377             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1378                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1379                 return (EINVAL);
1380         }
1381         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1382                 SCTP_INP_RLOCK(inp);
1383                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1384                 SCTP_INP_RUNLOCK(inp);
1385         }
1386         if (stcb) {
1387                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1388                 return (EALREADY);
1389         }
1390         SCTP_INP_INCR_REF(inp);
1391         SCTP_ASOC_CREATE_LOCK(inp);
1392         creat_lock_on = 1;
1393         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1394             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1395                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1396                 error = EFAULT;
1397                 goto out_now;
1398         }
1399         totaddrp = (unsigned int *)optval;
1400         totaddr = *totaddrp;
1401         sa = (struct sockaddr *)(totaddrp + 1);
1402         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1403         if ((stcb != NULL) || bad_addresses) {
1404                 /* Already have or am bring up an association */
1405                 SCTP_ASOC_CREATE_UNLOCK(inp);
1406                 creat_lock_on = 0;
1407                 if (stcb)
1408                         SCTP_TCB_UNLOCK(stcb);
1409                 if (bad_addresses == 0) {
1410                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1411                         error = EALREADY;
1412                 }
1413                 goto out_now;
1414         }
1415 #ifdef INET6
1416         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1417             (num_v6 > 0)) {
1418                 error = EINVAL;
1419                 goto out_now;
1420         }
1421         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1422             (num_v4 > 0)) {
1423                 struct in6pcb *inp6;
1424
1425                 inp6 = (struct in6pcb *)inp;
1426                 if (SCTP_IPV6_V6ONLY(inp6)) {
1427                         /*
1428                          * if IPV6_V6ONLY flag, ignore connections destined
1429                          * to a v4 addr or v4-mapped addr
1430                          */
1431                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1432                         error = EINVAL;
1433                         goto out_now;
1434                 }
1435         }
1436 #endif                          /* INET6 */
1437         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1438             SCTP_PCB_FLAGS_UNBOUND) {
1439                 /* Bind a ephemeral port */
1440                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1441                 if (error) {
1442                         goto out_now;
1443                 }
1444         }
1445         /* FIX ME: do we want to pass in a vrf on the connect call? */
1446         vrf_id = inp->def_vrf_id;
1447
1448
1449         /* We are GOOD to go */
1450         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1451             inp->sctp_ep.pre_open_stream_count,
1452             inp->sctp_ep.port,
1453             (struct thread *)p
1454             );
1455         if (stcb == NULL) {
1456                 /* Gak! no memory */
1457                 goto out_now;
1458         }
1459         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1460                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1461                 /* Set the connected flag so we can queue data */
1462                 soisconnecting(so);
1463         }
1464         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1465         /* move to second address */
1466         switch (sa->sa_family) {
1467 #ifdef INET
1468         case AF_INET:
1469                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1470                 break;
1471 #endif
1472 #ifdef INET6
1473         case AF_INET6:
1474                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1475                 break;
1476 #endif
1477         default:
1478                 break;
1479         }
1480
1481         error = 0;
1482         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1483         /* Fill in the return id */
1484         if (error) {
1485                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1486                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1487                 goto out_now;
1488         }
1489         a_id = (sctp_assoc_t *)optval;
1490         *a_id = sctp_get_associd(stcb);
1491
1492         /* initialize authentication parameters for the assoc */
1493         sctp_initialize_auth_params(inp, stcb);
1494
1495         if (delay) {
1496                 /* doing delayed connection */
1497                 stcb->asoc.delayed_connection = 1;
1498                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1499         } else {
1500                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1501                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1502         }
1503         SCTP_TCB_UNLOCK(stcb);
1504 out_now:
1505         if (creat_lock_on) {
1506                 SCTP_ASOC_CREATE_UNLOCK(inp);
1507         }
1508         SCTP_INP_DECR_REF(inp);
1509         return (error);
1510 }
1511
1512 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1513         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1514             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1515                 SCTP_INP_RLOCK(inp); \
1516                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1517                 if (stcb) { \
1518                         SCTP_TCB_LOCK(stcb); \
1519                 } \
1520                 SCTP_INP_RUNLOCK(inp); \
1521         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1522                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1523                 if (stcb == NULL) { \
1524                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1525                         error = ENOENT; \
1526                         break; \
1527                 } \
1528         } else { \
1529                 stcb = NULL; \
1530         } \
1531 }
1532
1533
1534 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1535         if (size < sizeof(type)) { \
1536                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1537                 error = EINVAL; \
1538                 break; \
1539         } else { \
1540                 destp = (type *)srcp; \
1541         } \
1542 }
1543
1544 static int
1545 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1546     void *p)
1547 {
1548         struct sctp_inpcb *inp = NULL;
1549         int error, val = 0;
1550         struct sctp_tcb *stcb = NULL;
1551
1552         if (optval == NULL) {
1553                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1554                 return (EINVAL);
1555         }
1556         inp = (struct sctp_inpcb *)so->so_pcb;
1557         if (inp == NULL) {
1558                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1559                 return EINVAL;
1560         }
1561         error = 0;
1562
1563         switch (optname) {
1564         case SCTP_NODELAY:
1565         case SCTP_AUTOCLOSE:
1566         case SCTP_EXPLICIT_EOR:
1567         case SCTP_AUTO_ASCONF:
1568         case SCTP_DISABLE_FRAGMENTS:
1569         case SCTP_I_WANT_MAPPED_V4_ADDR:
1570         case SCTP_USE_EXT_RCVINFO:
1571                 SCTP_INP_RLOCK(inp);
1572                 switch (optname) {
1573                 case SCTP_DISABLE_FRAGMENTS:
1574                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1575                         break;
1576                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1577                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1578                         break;
1579                 case SCTP_AUTO_ASCONF:
1580                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1581                                 /* only valid for bound all sockets */
1582                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1583                         } else {
1584                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1585                                 error = EINVAL;
1586                                 goto flags_out;
1587                         }
1588                         break;
1589                 case SCTP_EXPLICIT_EOR:
1590                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1591                         break;
1592                 case SCTP_NODELAY:
1593                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1594                         break;
1595                 case SCTP_USE_EXT_RCVINFO:
1596                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1597                         break;
1598                 case SCTP_AUTOCLOSE:
1599                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1600                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1601                         else
1602                                 val = 0;
1603                         break;
1604
1605                 default:
1606                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1607                         error = ENOPROTOOPT;
1608                 }               /* end switch (sopt->sopt_name) */
1609                 if (*optsize < sizeof(val)) {
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1611                         error = EINVAL;
1612                 }
1613 flags_out:
1614                 SCTP_INP_RUNLOCK(inp);
1615                 if (error == 0) {
1616                         /* return the option value */
1617                         *(int *)optval = val;
1618                         *optsize = sizeof(val);
1619                 }
1620                 break;
1621         case SCTP_GET_PACKET_LOG:
1622                 {
1623 #ifdef  SCTP_PACKET_LOGGING
1624                         uint8_t *target;
1625                         int ret;
1626
1627                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1628                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1629                         *optsize = ret;
1630 #else
1631                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1632                         error = EOPNOTSUPP;
1633 #endif
1634                         break;
1635                 }
1636         case SCTP_REUSE_PORT:
1637                 {
1638                         uint32_t *value;
1639
1640                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1641                                 /* Can't do this for a 1-m socket */
1642                                 error = EINVAL;
1643                                 break;
1644                         }
1645                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1646                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1647                         *optsize = sizeof(uint32_t);
1648                         break;
1649                 }
1650         case SCTP_PARTIAL_DELIVERY_POINT:
1651                 {
1652                         uint32_t *value;
1653
1654                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1655                         *value = inp->partial_delivery_point;
1656                         *optsize = sizeof(uint32_t);
1657                         break;
1658                 }
1659         case SCTP_FRAGMENT_INTERLEAVE:
1660                 {
1661                         uint32_t *value;
1662
1663                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1664                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1665                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1666                                         *value = SCTP_FRAG_LEVEL_2;
1667                                 } else {
1668                                         *value = SCTP_FRAG_LEVEL_1;
1669                                 }
1670                         } else {
1671                                 *value = SCTP_FRAG_LEVEL_0;
1672                         }
1673                         *optsize = sizeof(uint32_t);
1674                         break;
1675                 }
1676         case SCTP_INTERLEAVING_SUPPORTED:
1677                 {
1678                         struct sctp_assoc_value *av;
1679
1680                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1681                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1682
1683                         if (stcb) {
1684                                 av->assoc_value = stcb->asoc.idata_supported;
1685                                 SCTP_TCB_UNLOCK(stcb);
1686                         } else {
1687                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1688                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1689                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1690                                         SCTP_INP_RLOCK(inp);
1691                                         if (inp->idata_supported) {
1692                                                 av->assoc_value = 1;
1693                                         } else {
1694                                                 av->assoc_value = 0;
1695                                         }
1696                                         SCTP_INP_RUNLOCK(inp);
1697                                 } else {
1698                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1699                                         error = EINVAL;
1700                                 }
1701                         }
1702                         if (error == 0) {
1703                                 *optsize = sizeof(struct sctp_assoc_value);
1704                         }
1705                         break;
1706                 }
1707         case SCTP_CMT_ON_OFF:
1708                 {
1709                         struct sctp_assoc_value *av;
1710
1711                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1712                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1713                         if (stcb) {
1714                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1715                                 SCTP_TCB_UNLOCK(stcb);
1716                         } else {
1717                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1718                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1719                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1720                                         SCTP_INP_RLOCK(inp);
1721                                         av->assoc_value = inp->sctp_cmt_on_off;
1722                                         SCTP_INP_RUNLOCK(inp);
1723                                 } else {
1724                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1725                                         error = EINVAL;
1726                                 }
1727                         }
1728                         if (error == 0) {
1729                                 *optsize = sizeof(struct sctp_assoc_value);
1730                         }
1731                         break;
1732                 }
1733         case SCTP_PLUGGABLE_CC:
1734                 {
1735                         struct sctp_assoc_value *av;
1736
1737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1739                         if (stcb) {
1740                                 av->assoc_value = stcb->asoc.congestion_control_module;
1741                                 SCTP_TCB_UNLOCK(stcb);
1742                         } else {
1743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1746                                         SCTP_INP_RLOCK(inp);
1747                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1748                                         SCTP_INP_RUNLOCK(inp);
1749                                 } else {
1750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1751                                         error = EINVAL;
1752                                 }
1753                         }
1754                         if (error == 0) {
1755                                 *optsize = sizeof(struct sctp_assoc_value);
1756                         }
1757                         break;
1758                 }
1759         case SCTP_CC_OPTION:
1760                 {
1761                         struct sctp_cc_option *cc_opt;
1762
1763                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1764                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1765                         if (stcb == NULL) {
1766                                 error = EINVAL;
1767                         } else {
1768                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1769                                         error = ENOTSUP;
1770                                 } else {
1771                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1772                                         *optsize = sizeof(struct sctp_cc_option);
1773                                 }
1774                                 SCTP_TCB_UNLOCK(stcb);
1775                         }
1776                         break;
1777                 }
1778         case SCTP_PLUGGABLE_SS:
1779                 {
1780                         struct sctp_assoc_value *av;
1781
1782                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1783                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1784                         if (stcb) {
1785                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1786                                 SCTP_TCB_UNLOCK(stcb);
1787                         } else {
1788                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1789                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1790                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1791                                         SCTP_INP_RLOCK(inp);
1792                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1793                                         SCTP_INP_RUNLOCK(inp);
1794                                 } else {
1795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1796                                         error = EINVAL;
1797                                 }
1798                         }
1799                         if (error == 0) {
1800                                 *optsize = sizeof(struct sctp_assoc_value);
1801                         }
1802                         break;
1803                 }
1804         case SCTP_SS_VALUE:
1805                 {
1806                         struct sctp_stream_value *av;
1807
1808                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1809                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1810                         if (stcb) {
1811                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1812                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1813                                     &av->stream_value) < 0)) {
1814                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1815                                         error = EINVAL;
1816                                 } else {
1817                                         *optsize = sizeof(struct sctp_stream_value);
1818                                 }
1819                                 SCTP_TCB_UNLOCK(stcb);
1820                         } else {
1821                                 /*
1822                                  * Can't get stream value without
1823                                  * association
1824                                  */
1825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1826                                 error = EINVAL;
1827                         }
1828                         break;
1829                 }
1830         case SCTP_GET_ADDR_LEN:
1831                 {
1832                         struct sctp_assoc_value *av;
1833
1834                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1835                         error = EINVAL;
1836 #ifdef INET
1837                         if (av->assoc_value == AF_INET) {
1838                                 av->assoc_value = sizeof(struct sockaddr_in);
1839                                 error = 0;
1840                         }
1841 #endif
1842 #ifdef INET6
1843                         if (av->assoc_value == AF_INET6) {
1844                                 av->assoc_value = sizeof(struct sockaddr_in6);
1845                                 error = 0;
1846                         }
1847 #endif
1848                         if (error) {
1849                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1850                         } else {
1851                                 *optsize = sizeof(struct sctp_assoc_value);
1852                         }
1853                         break;
1854                 }
1855         case SCTP_GET_ASSOC_NUMBER:
1856                 {
1857                         uint32_t *value, cnt;
1858
1859                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1860                         SCTP_INP_RLOCK(inp);
1861                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1862                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1863                                 /* Can't do this for a 1-1 socket */
1864                                 error = EINVAL;
1865                                 SCTP_INP_RUNLOCK(inp);
1866                                 break;
1867                         }
1868                         cnt = 0;
1869                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1870                                 cnt++;
1871                         }
1872                         SCTP_INP_RUNLOCK(inp);
1873                         *value = cnt;
1874                         *optsize = sizeof(uint32_t);
1875                         break;
1876                 }
1877         case SCTP_GET_ASSOC_ID_LIST:
1878                 {
1879                         struct sctp_assoc_ids *ids;
1880                         uint32_t at;
1881                         size_t limit;
1882
1883                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1884                         SCTP_INP_RLOCK(inp);
1885                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1886                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1887                                 /* Can't do this for a 1-1 socket */
1888                                 error = EINVAL;
1889                                 SCTP_INP_RUNLOCK(inp);
1890                                 break;
1891                         }
1892                         at = 0;
1893                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1894                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1895                                 if (at < limit) {
1896                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1897                                         if (at == 0) {
1898                                                 error = EINVAL;
1899                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1900                                                 break;
1901                                         }
1902                                 } else {
1903                                         error = EINVAL;
1904                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1905                                         break;
1906                                 }
1907                         }
1908                         SCTP_INP_RUNLOCK(inp);
1909                         if (error == 0) {
1910                                 ids->gaids_number_of_ids = at;
1911                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1912                         }
1913                         break;
1914                 }
1915         case SCTP_CONTEXT:
1916                 {
1917                         struct sctp_assoc_value *av;
1918
1919                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1920                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1921
1922                         if (stcb) {
1923                                 av->assoc_value = stcb->asoc.context;
1924                                 SCTP_TCB_UNLOCK(stcb);
1925                         } else {
1926                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1927                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1928                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1929                                         SCTP_INP_RLOCK(inp);
1930                                         av->assoc_value = inp->sctp_context;
1931                                         SCTP_INP_RUNLOCK(inp);
1932                                 } else {
1933                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1934                                         error = EINVAL;
1935                                 }
1936                         }
1937                         if (error == 0) {
1938                                 *optsize = sizeof(struct sctp_assoc_value);
1939                         }
1940                         break;
1941                 }
1942         case SCTP_VRF_ID:
1943                 {
1944                         uint32_t *default_vrfid;
1945
1946                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1947                         *default_vrfid = inp->def_vrf_id;
1948                         *optsize = sizeof(uint32_t);
1949                         break;
1950                 }
1951         case SCTP_GET_ASOC_VRF:
1952                 {
1953                         struct sctp_assoc_value *id;
1954
1955                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1956                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1957                         if (stcb == NULL) {
1958                                 error = EINVAL;
1959                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1960                         } else {
1961                                 id->assoc_value = stcb->asoc.vrf_id;
1962                                 *optsize = sizeof(struct sctp_assoc_value);
1963                         }
1964                         break;
1965                 }
1966         case SCTP_GET_VRF_IDS:
1967                 {
1968                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1969                         error = EOPNOTSUPP;
1970                         break;
1971                 }
1972         case SCTP_GET_NONCE_VALUES:
1973                 {
1974                         struct sctp_get_nonce_values *gnv;
1975
1976                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1977                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1978
1979                         if (stcb) {
1980                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1981                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1982                                 SCTP_TCB_UNLOCK(stcb);
1983                                 *optsize = sizeof(struct sctp_get_nonce_values);
1984                         } else {
1985                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1986                                 error = ENOTCONN;
1987                         }
1988                         break;
1989                 }
1990         case SCTP_DELAYED_SACK:
1991                 {
1992                         struct sctp_sack_info *sack;
1993
1994                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1995                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1996                         if (stcb) {
1997                                 sack->sack_delay = stcb->asoc.delayed_ack;
1998                                 sack->sack_freq = stcb->asoc.sack_freq;
1999                                 SCTP_TCB_UNLOCK(stcb);
2000                         } else {
2001                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2002                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2003                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2004                                         SCTP_INP_RLOCK(inp);
2005                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2006                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2007                                         SCTP_INP_RUNLOCK(inp);
2008                                 } else {
2009                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2010                                         error = EINVAL;
2011                                 }
2012                         }
2013                         if (error == 0) {
2014                                 *optsize = sizeof(struct sctp_sack_info);
2015                         }
2016                         break;
2017                 }
2018         case SCTP_GET_SNDBUF_USE:
2019                 {
2020                         struct sctp_sockstat *ss;
2021
2022                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2023                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2024
2025                         if (stcb) {
2026                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2027                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2028                                     stcb->asoc.size_on_all_streams);
2029                                 SCTP_TCB_UNLOCK(stcb);
2030                                 *optsize = sizeof(struct sctp_sockstat);
2031                         } else {
2032                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2033                                 error = ENOTCONN;
2034                         }
2035                         break;
2036                 }
2037         case SCTP_MAX_BURST:
2038                 {
2039                         struct sctp_assoc_value *av;
2040
2041                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2042                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2043
2044                         if (stcb) {
2045                                 av->assoc_value = stcb->asoc.max_burst;
2046                                 SCTP_TCB_UNLOCK(stcb);
2047                         } else {
2048                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2049                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2050                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2051                                         SCTP_INP_RLOCK(inp);
2052                                         av->assoc_value = inp->sctp_ep.max_burst;
2053                                         SCTP_INP_RUNLOCK(inp);
2054                                 } else {
2055                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2056                                         error = EINVAL;
2057                                 }
2058                         }
2059                         if (error == 0) {
2060                                 *optsize = sizeof(struct sctp_assoc_value);
2061                         }
2062                         break;
2063                 }
2064         case SCTP_MAXSEG:
2065                 {
2066                         struct sctp_assoc_value *av;
2067                         int ovh;
2068
2069                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2070                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2071
2072                         if (stcb) {
2073                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2074                                 SCTP_TCB_UNLOCK(stcb);
2075                         } else {
2076                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2077                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2078                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2079                                         SCTP_INP_RLOCK(inp);
2080                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2081                                                 ovh = SCTP_MED_OVERHEAD;
2082                                         } else {
2083                                                 ovh = SCTP_MED_V4_OVERHEAD;
2084                                         }
2085                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2086                                                 av->assoc_value = 0;
2087                                         else
2088                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2089                                         SCTP_INP_RUNLOCK(inp);
2090                                 } else {
2091                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2092                                         error = EINVAL;
2093                                 }
2094                         }
2095                         if (error == 0) {
2096                                 *optsize = sizeof(struct sctp_assoc_value);
2097                         }
2098                         break;
2099                 }
2100         case SCTP_GET_STAT_LOG:
2101                 error = sctp_fill_stat_log(optval, optsize);
2102                 break;
2103         case SCTP_EVENTS:
2104                 {
2105                         struct sctp_event_subscribe *events;
2106
2107                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2108                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2109                         SCTP_INP_RLOCK(inp);
2110                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2111                                 events->sctp_data_io_event = 1;
2112
2113                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2114                                 events->sctp_association_event = 1;
2115
2116                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2117                                 events->sctp_address_event = 1;
2118
2119                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2120                                 events->sctp_send_failure_event = 1;
2121
2122                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2123                                 events->sctp_peer_error_event = 1;
2124
2125                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2126                                 events->sctp_shutdown_event = 1;
2127
2128                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2129                                 events->sctp_partial_delivery_event = 1;
2130
2131                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2132                                 events->sctp_adaptation_layer_event = 1;
2133
2134                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2135                                 events->sctp_authentication_event = 1;
2136
2137                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2138                                 events->sctp_sender_dry_event = 1;
2139
2140                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2141                                 events->sctp_stream_reset_event = 1;
2142                         SCTP_INP_RUNLOCK(inp);
2143                         *optsize = sizeof(struct sctp_event_subscribe);
2144                         break;
2145                 }
2146         case SCTP_ADAPTATION_LAYER:
2147                 {
2148                         uint32_t *value;
2149
2150                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2151
2152                         SCTP_INP_RLOCK(inp);
2153                         *value = inp->sctp_ep.adaptation_layer_indicator;
2154                         SCTP_INP_RUNLOCK(inp);
2155                         *optsize = sizeof(uint32_t);
2156                         break;
2157                 }
2158         case SCTP_SET_INITIAL_DBG_SEQ:
2159                 {
2160                         uint32_t *value;
2161
2162                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2163                         SCTP_INP_RLOCK(inp);
2164                         *value = inp->sctp_ep.initial_sequence_debug;
2165                         SCTP_INP_RUNLOCK(inp);
2166                         *optsize = sizeof(uint32_t);
2167                         break;
2168                 }
2169         case SCTP_GET_LOCAL_ADDR_SIZE:
2170                 {
2171                         uint32_t *value;
2172
2173                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2174                         SCTP_INP_RLOCK(inp);
2175                         *value = sctp_count_max_addresses(inp);
2176                         SCTP_INP_RUNLOCK(inp);
2177                         *optsize = sizeof(uint32_t);
2178                         break;
2179                 }
2180         case SCTP_GET_REMOTE_ADDR_SIZE:
2181                 {
2182                         uint32_t *value;
2183                         size_t size;
2184                         struct sctp_nets *net;
2185
2186                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2187                         /* FIXME MT: change to sctp_assoc_value? */
2188                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2189
2190                         if (stcb) {
2191                                 size = 0;
2192                                 /* Count the sizes */
2193                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2194                                         switch (net->ro._l_addr.sa.sa_family) {
2195 #ifdef INET
2196                                         case AF_INET:
2197 #ifdef INET6
2198                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2199                                                         size += sizeof(struct sockaddr_in6);
2200                                                 } else {
2201                                                         size += sizeof(struct sockaddr_in);
2202                                                 }
2203 #else
2204                                                 size += sizeof(struct sockaddr_in);
2205 #endif
2206                                                 break;
2207 #endif
2208 #ifdef INET6
2209                                         case AF_INET6:
2210                                                 size += sizeof(struct sockaddr_in6);
2211                                                 break;
2212 #endif
2213                                         default:
2214                                                 break;
2215                                         }
2216                                 }
2217                                 SCTP_TCB_UNLOCK(stcb);
2218                                 *value = (uint32_t)size;
2219                                 *optsize = sizeof(uint32_t);
2220                         } else {
2221                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2222                                 error = ENOTCONN;
2223                         }
2224                         break;
2225                 }
2226         case SCTP_GET_PEER_ADDRESSES:
2227                 /*
2228                  * Get the address information, an array is passed in to
2229                  * fill up we pack it.
2230                  */
2231                 {
2232                         size_t cpsz, left;
2233                         struct sockaddr_storage *sas;
2234                         struct sctp_nets *net;
2235                         struct sctp_getaddresses *saddr;
2236
2237                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2238                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2239
2240                         if (stcb) {
2241                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2242                                 *optsize = sizeof(struct sctp_getaddresses);
2243                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2244
2245                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2246                                         switch (net->ro._l_addr.sa.sa_family) {
2247 #ifdef INET
2248                                         case AF_INET:
2249 #ifdef INET6
2250                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2251                                                         cpsz = sizeof(struct sockaddr_in6);
2252                                                 } else {
2253                                                         cpsz = sizeof(struct sockaddr_in);
2254                                                 }
2255 #else
2256                                                 cpsz = sizeof(struct sockaddr_in);
2257 #endif
2258                                                 break;
2259 #endif
2260 #ifdef INET6
2261                                         case AF_INET6:
2262                                                 cpsz = sizeof(struct sockaddr_in6);
2263                                                 break;
2264 #endif
2265                                         default:
2266                                                 cpsz = 0;
2267                                                 break;
2268                                         }
2269                                         if (cpsz == 0) {
2270                                                 break;
2271                                         }
2272                                         if (left < cpsz) {
2273                                                 /* not enough room. */
2274                                                 break;
2275                                         }
2276 #if defined(INET) && defined(INET6)
2277                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2278                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2279                                                 /* Must map the address */
2280                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2281                                                     (struct sockaddr_in6 *)sas);
2282                                         } else {
2283                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2284                                         }
2285 #else
2286                                         memcpy(sas, &net->ro._l_addr, cpsz);
2287 #endif
2288                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2289
2290                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2291                                         left -= cpsz;
2292                                         *optsize += cpsz;
2293                                 }
2294                                 SCTP_TCB_UNLOCK(stcb);
2295                         } else {
2296                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2297                                 error = ENOENT;
2298                         }
2299                         break;
2300                 }
2301         case SCTP_GET_LOCAL_ADDRESSES:
2302                 {
2303                         size_t limit, actual;
2304                         struct sockaddr_storage *sas;
2305                         struct sctp_getaddresses *saddr;
2306
2307                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2308                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2309
2310                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2311                         limit = *optsize - sizeof(sctp_assoc_t);
2312                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2313                         if (stcb) {
2314                                 SCTP_TCB_UNLOCK(stcb);
2315                         }
2316                         *optsize = sizeof(struct sockaddr_storage) + actual;
2317                         break;
2318                 }
2319         case SCTP_PEER_ADDR_PARAMS:
2320                 {
2321                         struct sctp_paddrparams *paddrp;
2322                         struct sctp_nets *net;
2323                         struct sockaddr *addr;
2324 #if defined(INET) && defined(INET6)
2325                         struct sockaddr_in sin_store;
2326 #endif
2327
2328                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2329                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2330
2331 #if defined(INET) && defined(INET6)
2332                         if (paddrp->spp_address.ss_family == AF_INET6) {
2333                                 struct sockaddr_in6 *sin6;
2334
2335                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2336                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2337                                         in6_sin6_2_sin(&sin_store, sin6);
2338                                         addr = (struct sockaddr *)&sin_store;
2339                                 } else {
2340                                         addr = (struct sockaddr *)&paddrp->spp_address;
2341                                 }
2342                         } else {
2343                                 addr = (struct sockaddr *)&paddrp->spp_address;
2344                         }
2345 #else
2346                         addr = (struct sockaddr *)&paddrp->spp_address;
2347 #endif
2348                         if (stcb != NULL) {
2349                                 net = sctp_findnet(stcb, addr);
2350                         } else {
2351                                 /*
2352                                  * We increment here since
2353                                  * sctp_findassociation_ep_addr() wil do a
2354                                  * decrement if it finds the stcb as long as
2355                                  * the locked tcb (last argument) is NOT a
2356                                  * TCB.. aka NULL.
2357                                  */
2358                                 net = NULL;
2359                                 SCTP_INP_INCR_REF(inp);
2360                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2361                                 if (stcb == NULL) {
2362                                         SCTP_INP_DECR_REF(inp);
2363                                 }
2364                         }
2365                         if ((stcb != NULL) && (net == NULL)) {
2366 #ifdef INET
2367                                 if (addr->sa_family == AF_INET) {
2368                                         struct sockaddr_in *sin;
2369
2370                                         sin = (struct sockaddr_in *)addr;
2371                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 (addr->sa_family == AF_INET6) {
2381                                         struct sockaddr_in6 *sin6;
2382
2383                                         sin6 = (struct sockaddr_in6 *)addr;
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 != NULL) {
2400                                 /* Applies to the specific association */
2401                                 paddrp->spp_flags = 0;
2402                                 if (net != NULL) {
2403                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2404                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2405                                         paddrp->spp_pathmtu = net->mtu;
2406                                         switch (net->ro._l_addr.sa.sa_family) {
2407 #ifdef INET
2408                                         case AF_INET:
2409                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2410                                                 break;
2411 #endif
2412 #ifdef INET6
2413                                         case AF_INET6:
2414                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2415                                                 break;
2416 #endif
2417                                         default:
2418                                                 break;
2419                                         }
2420                                         /* get flags for HB */
2421                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2422                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2423                                         } else {
2424                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2425                                         }
2426                                         /* get flags for PMTU */
2427                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2428                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2429                                         } else {
2430                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2431                                         }
2432                                         if (net->dscp & 0x01) {
2433                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2434                                                 paddrp->spp_flags |= SPP_DSCP;
2435                                         }
2436 #ifdef INET6
2437                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2438                                             (net->flowlabel & 0x80000000)) {
2439                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2440                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2441                                         }
2442 #endif
2443                                 } else {
2444                                         /*
2445                                          * No destination so return default
2446                                          * value
2447                                          */
2448                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2449                                         paddrp->spp_pathmtu = 0;
2450                                         if (stcb->asoc.default_dscp & 0x01) {
2451                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2452                                                 paddrp->spp_flags |= SPP_DSCP;
2453                                         }
2454 #ifdef INET6
2455                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2456                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2457                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2458                                         }
2459 #endif
2460                                         /* default settings should be these */
2461                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2462                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2463                                         } else {
2464                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2465                                         }
2466                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2467                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2468                                         } else {
2469                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2470                                         }
2471                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2472                                 }
2473                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2474                                 SCTP_TCB_UNLOCK(stcb);
2475                         } else {
2476                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2477                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2478                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2479                                         /* Use endpoint defaults */
2480                                         SCTP_INP_RLOCK(inp);
2481                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2482                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2483                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2484                                         /* get inp's default */
2485                                         if (inp->sctp_ep.default_dscp & 0x01) {
2486                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2487                                                 paddrp->spp_flags |= SPP_DSCP;
2488                                         }
2489 #ifdef INET6
2490                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2491                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2492                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2493                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2494                                         }
2495 #endif
2496                                         /* can't return this */
2497                                         paddrp->spp_pathmtu = 0;
2498
2499                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2500                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2501                                         } else {
2502                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2503                                         }
2504                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2505                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2506                                         } else {
2507                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2508                                         }
2509                                         SCTP_INP_RUNLOCK(inp);
2510                                 } else {
2511                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2512                                         error = EINVAL;
2513                                 }
2514                         }
2515                         if (error == 0) {
2516                                 *optsize = sizeof(struct sctp_paddrparams);
2517                         }
2518                         break;
2519                 }
2520         case SCTP_GET_PEER_ADDR_INFO:
2521                 {
2522                         struct sctp_paddrinfo *paddri;
2523                         struct sctp_nets *net;
2524                         struct sockaddr *addr;
2525 #if defined(INET) && defined(INET6)
2526                         struct sockaddr_in sin_store;
2527 #endif
2528
2529                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2530                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2531
2532 #if defined(INET) && defined(INET6)
2533                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2534                                 struct sockaddr_in6 *sin6;
2535
2536                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2537                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2538                                         in6_sin6_2_sin(&sin_store, sin6);
2539                                         addr = (struct sockaddr *)&sin_store;
2540                                 } else {
2541                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2542                                 }
2543                         } else {
2544                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2545                         }
2546 #else
2547                         addr = (struct sockaddr *)&paddri->spinfo_address;
2548 #endif
2549                         if (stcb != NULL) {
2550                                 net = sctp_findnet(stcb, addr);
2551                         } else {
2552                                 /*
2553                                  * We increment here since
2554                                  * sctp_findassociation_ep_addr() wil do a
2555                                  * decrement if it finds the stcb as long as
2556                                  * the locked tcb (last argument) is NOT a
2557                                  * TCB.. aka NULL.
2558                                  */
2559                                 net = NULL;
2560                                 SCTP_INP_INCR_REF(inp);
2561                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2562                                 if (stcb == NULL) {
2563                                         SCTP_INP_DECR_REF(inp);
2564                                 }
2565                         }
2566
2567                         if ((stcb != NULL) && (net != NULL)) {
2568                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2569                                         /* It's unconfirmed */
2570                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2571                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2572                                         /* It's active */
2573                                         paddri->spinfo_state = SCTP_ACTIVE;
2574                                 } else {
2575                                         /* It's inactive */
2576                                         paddri->spinfo_state = SCTP_INACTIVE;
2577                                 }
2578                                 paddri->spinfo_cwnd = net->cwnd;
2579                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2580                                 paddri->spinfo_rto = net->RTO;
2581                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2582                                 paddri->spinfo_mtu = net->mtu;
2583                                 switch (addr->sa_family) {
2584 #if defined(INET)
2585                                 case AF_INET:
2586                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2587                                         break;
2588 #endif
2589 #if defined(INET6)
2590                                 case AF_INET6:
2591                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2592                                         break;
2593 #endif
2594                                 default:
2595                                         break;
2596                                 }
2597                                 SCTP_TCB_UNLOCK(stcb);
2598                                 *optsize = sizeof(struct sctp_paddrinfo);
2599                         } else {
2600                                 if (stcb != NULL) {
2601                                         SCTP_TCB_UNLOCK(stcb);
2602                                 }
2603                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2604                                 error = ENOENT;
2605                         }
2606                         break;
2607                 }
2608         case SCTP_PCB_STATUS:
2609                 {
2610                         struct sctp_pcbinfo *spcb;
2611
2612                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2613                         sctp_fill_pcbinfo(spcb);
2614                         *optsize = sizeof(struct sctp_pcbinfo);
2615                         break;
2616                 }
2617         case SCTP_STATUS:
2618                 {
2619                         struct sctp_nets *net;
2620                         struct sctp_status *sstat;
2621
2622                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2623                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2624
2625                         if (stcb == NULL) {
2626                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2627                                 error = EINVAL;
2628                                 break;
2629                         }
2630                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2631                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2632                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2633                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2634                         /*
2635                          * We can't include chunks that have been passed to
2636                          * the socket layer. Only things in queue.
2637                          */
2638                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2639                             stcb->asoc.cnt_on_all_streams);
2640
2641
2642                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2643                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2644                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2645                         memcpy(&sstat->sstat_primary.spinfo_address,
2646                             &stcb->asoc.primary_destination->ro._l_addr,
2647                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2648                         net = stcb->asoc.primary_destination;
2649                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2650                         /*
2651                          * Again the user can get info from sctp_constants.h
2652                          * for what the state of the network is.
2653                          */
2654                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2655                                 /* It's unconfirmed */
2656                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2657                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2658                                 /* It's active */
2659                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2660                         } else {
2661                                 /* It's inactive */
2662                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2663                         }
2664                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2665                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2666                         sstat->sstat_primary.spinfo_rto = net->RTO;
2667                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2668                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2669 #if defined(INET)
2670                         case AF_INET:
2671                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2672                                 break;
2673 #endif
2674 #if defined(INET6)
2675                         case AF_INET6:
2676                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2677                                 break;
2678 #endif
2679                         default:
2680                                 break;
2681                         }
2682                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2683                         SCTP_TCB_UNLOCK(stcb);
2684                         *optsize = sizeof(struct sctp_status);
2685                         break;
2686                 }
2687         case SCTP_RTOINFO:
2688                 {
2689                         struct sctp_rtoinfo *srto;
2690
2691                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2692                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2693
2694                         if (stcb) {
2695                                 srto->srto_initial = stcb->asoc.initial_rto;
2696                                 srto->srto_max = stcb->asoc.maxrto;
2697                                 srto->srto_min = stcb->asoc.minrto;
2698                                 SCTP_TCB_UNLOCK(stcb);
2699                         } else {
2700                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2701                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2702                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2703                                         SCTP_INP_RLOCK(inp);
2704                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2705                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2706                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2707                                         SCTP_INP_RUNLOCK(inp);
2708                                 } else {
2709                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2710                                         error = EINVAL;
2711                                 }
2712                         }
2713                         if (error == 0) {
2714                                 *optsize = sizeof(struct sctp_rtoinfo);
2715                         }
2716                         break;
2717                 }
2718         case SCTP_TIMEOUTS:
2719                 {
2720                         struct sctp_timeouts *stimo;
2721
2722                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2723                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2724
2725                         if (stcb) {
2726                                 stimo->stimo_init = stcb->asoc.timoinit;
2727                                 stimo->stimo_data = stcb->asoc.timodata;
2728                                 stimo->stimo_sack = stcb->asoc.timosack;
2729                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2730                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2731                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2732                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2733                                 SCTP_TCB_UNLOCK(stcb);
2734                                 *optsize = sizeof(struct sctp_timeouts);
2735                         } else {
2736                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2737                                 error = EINVAL;
2738                         }
2739                         break;
2740                 }
2741         case SCTP_ASSOCINFO:
2742                 {
2743                         struct sctp_assocparams *sasoc;
2744
2745                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2746                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2747
2748                         if (stcb) {
2749                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2750                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2751                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2752                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2753                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2754                                 SCTP_TCB_UNLOCK(stcb);
2755                         } else {
2756                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2757                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2758                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2759                                         SCTP_INP_RLOCK(inp);
2760                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2761                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2762                                         sasoc->sasoc_number_peer_destinations = 0;
2763                                         sasoc->sasoc_peer_rwnd = 0;
2764                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2765                                         SCTP_INP_RUNLOCK(inp);
2766                                 } else {
2767                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2768                                         error = EINVAL;
2769                                 }
2770                         }
2771                         if (error == 0) {
2772                                 *optsize = sizeof(struct sctp_assocparams);
2773                         }
2774                         break;
2775                 }
2776         case SCTP_DEFAULT_SEND_PARAM:
2777                 {
2778                         struct sctp_sndrcvinfo *s_info;
2779
2780                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2781                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2782
2783                         if (stcb) {
2784                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2785                                 SCTP_TCB_UNLOCK(stcb);
2786                         } else {
2787                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2788                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2789                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2790                                         SCTP_INP_RLOCK(inp);
2791                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2792                                         SCTP_INP_RUNLOCK(inp);
2793                                 } else {
2794                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2795                                         error = EINVAL;
2796                                 }
2797                         }
2798                         if (error == 0) {
2799                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2800                         }
2801                         break;
2802                 }
2803         case SCTP_INITMSG:
2804                 {
2805                         struct sctp_initmsg *sinit;
2806
2807                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2808                         SCTP_INP_RLOCK(inp);
2809                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2810                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2811                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2812                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2813                         SCTP_INP_RUNLOCK(inp);
2814                         *optsize = sizeof(struct sctp_initmsg);
2815                         break;
2816                 }
2817         case SCTP_PRIMARY_ADDR:
2818                 /* we allow a "get" operation on this */
2819                 {
2820                         struct sctp_setprim *ssp;
2821
2822                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2823                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2824
2825                         if (stcb) {
2826                                 union sctp_sockstore *addr;
2827
2828                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2829                                 switch (addr->sa.sa_family) {
2830 #ifdef INET
2831                                 case AF_INET:
2832 #ifdef INET6
2833                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2834                                                 in6_sin_2_v4mapsin6(&addr->sin,
2835                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2836                                         } else {
2837                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2838                                         }
2839 #else
2840                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2841 #endif
2842                                         break;
2843 #endif
2844 #ifdef INET6
2845                                 case AF_INET6:
2846                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2847                                         break;
2848 #endif
2849                                 default:
2850                                         break;
2851                                 }
2852                                 SCTP_TCB_UNLOCK(stcb);
2853                                 *optsize = sizeof(struct sctp_setprim);
2854                         } else {
2855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2856                                 error = EINVAL;
2857                         }
2858                         break;
2859                 }
2860         case SCTP_HMAC_IDENT:
2861                 {
2862                         struct sctp_hmacalgo *shmac;
2863                         sctp_hmaclist_t *hmaclist;
2864                         uint32_t size;
2865                         int i;
2866
2867                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2868
2869                         SCTP_INP_RLOCK(inp);
2870                         hmaclist = inp->sctp_ep.local_hmacs;
2871                         if (hmaclist == NULL) {
2872                                 /* no HMACs to return */
2873                                 *optsize = sizeof(*shmac);
2874                                 SCTP_INP_RUNLOCK(inp);
2875                                 break;
2876                         }
2877                         /* is there room for all of the hmac ids? */
2878                         size = sizeof(*shmac) + (hmaclist->num_algo *
2879                             sizeof(shmac->shmac_idents[0]));
2880                         if ((size_t)(*optsize) < size) {
2881                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2882                                 error = EINVAL;
2883                                 SCTP_INP_RUNLOCK(inp);
2884                                 break;
2885                         }
2886                         /* copy in the list */
2887                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2888                         for (i = 0; i < hmaclist->num_algo; i++) {
2889                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2890                         }
2891                         SCTP_INP_RUNLOCK(inp);
2892                         *optsize = size;
2893                         break;
2894                 }
2895         case SCTP_AUTH_ACTIVE_KEY:
2896                 {
2897                         struct sctp_authkeyid *scact;
2898
2899                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2900                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2901
2902                         if (stcb) {
2903                                 /* get the active key on the assoc */
2904                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2905                                 SCTP_TCB_UNLOCK(stcb);
2906                         } else {
2907                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2908                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2909                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2910                                         /* get the endpoint active key */
2911                                         SCTP_INP_RLOCK(inp);
2912                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2913                                         SCTP_INP_RUNLOCK(inp);
2914                                 } else {
2915                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2916                                         error = EINVAL;
2917                                 }
2918                         }
2919                         if (error == 0) {
2920                                 *optsize = sizeof(struct sctp_authkeyid);
2921                         }
2922                         break;
2923                 }
2924         case SCTP_LOCAL_AUTH_CHUNKS:
2925                 {
2926                         struct sctp_authchunks *sac;
2927                         sctp_auth_chklist_t *chklist = NULL;
2928                         size_t size = 0;
2929
2930                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2931                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2932
2933                         if (stcb) {
2934                                 /* get off the assoc */
2935                                 chklist = stcb->asoc.local_auth_chunks;
2936                                 /* is there enough space? */
2937                                 size = sctp_auth_get_chklist_size(chklist);
2938                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2939                                         error = EINVAL;
2940                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2941                                 } else {
2942                                         /* copy in the chunks */
2943                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2944                                         sac->gauth_number_of_chunks = (uint32_t)size;
2945                                         *optsize = sizeof(struct sctp_authchunks) + size;
2946                                 }
2947                                 SCTP_TCB_UNLOCK(stcb);
2948                         } else {
2949                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2950                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2951                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2952                                         /* get off the endpoint */
2953                                         SCTP_INP_RLOCK(inp);
2954                                         chklist = inp->sctp_ep.local_auth_chunks;
2955                                         /* is there enough space? */
2956                                         size = sctp_auth_get_chklist_size(chklist);
2957                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2958                                                 error = EINVAL;
2959                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2960                                         } else {
2961                                                 /* copy in the chunks */
2962                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2963                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2964                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2965                                         }
2966                                         SCTP_INP_RUNLOCK(inp);
2967                                 } else {
2968                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2969                                         error = EINVAL;
2970                                 }
2971                         }
2972                         break;
2973                 }
2974         case SCTP_PEER_AUTH_CHUNKS:
2975                 {
2976                         struct sctp_authchunks *sac;
2977                         sctp_auth_chklist_t *chklist = NULL;
2978                         size_t size = 0;
2979
2980                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2981                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2982
2983                         if (stcb) {
2984                                 /* get off the assoc */
2985                                 chklist = stcb->asoc.peer_auth_chunks;
2986                                 /* is there enough space? */
2987                                 size = sctp_auth_get_chklist_size(chklist);
2988                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2989                                         error = EINVAL;
2990                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2991                                 } else {
2992                                         /* copy in the chunks */
2993                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2994                                         sac->gauth_number_of_chunks = (uint32_t)size;
2995                                         *optsize = sizeof(struct sctp_authchunks) + size;
2996                                 }
2997                                 SCTP_TCB_UNLOCK(stcb);
2998                         } else {
2999                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3000                                 error = ENOENT;
3001                         }
3002                         break;
3003                 }
3004         case SCTP_EVENT:
3005                 {
3006                         struct sctp_event *event;
3007                         uint32_t event_type;
3008
3009                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3010                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3011
3012                         switch (event->se_type) {
3013                         case SCTP_ASSOC_CHANGE:
3014                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3015                                 break;
3016                         case SCTP_PEER_ADDR_CHANGE:
3017                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3018                                 break;
3019                         case SCTP_REMOTE_ERROR:
3020                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3021                                 break;
3022                         case SCTP_SEND_FAILED:
3023                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3024                                 break;
3025                         case SCTP_SHUTDOWN_EVENT:
3026                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3027                                 break;
3028                         case SCTP_ADAPTATION_INDICATION:
3029                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3030                                 break;
3031                         case SCTP_PARTIAL_DELIVERY_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3033                                 break;
3034                         case SCTP_AUTHENTICATION_EVENT:
3035                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3036                                 break;
3037                         case SCTP_STREAM_RESET_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3039                                 break;
3040                         case SCTP_SENDER_DRY_EVENT:
3041                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3042                                 break;
3043                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3044                                 event_type = 0;
3045                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3046                                 error = ENOTSUP;
3047                                 break;
3048                         case SCTP_ASSOC_RESET_EVENT:
3049                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3050                                 break;
3051                         case SCTP_STREAM_CHANGE_EVENT:
3052                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3053                                 break;
3054                         case SCTP_SEND_FAILED_EVENT:
3055                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3056                                 break;
3057                         default:
3058                                 event_type = 0;
3059                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3060                                 error = EINVAL;
3061                                 break;
3062                         }
3063                         if (event_type > 0) {
3064                                 if (stcb) {
3065                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3066                                         SCTP_TCB_UNLOCK(stcb);
3067                                 } else {
3068                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3069                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3070                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3071                                                 SCTP_INP_RLOCK(inp);
3072                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3073                                                 SCTP_INP_RUNLOCK(inp);
3074                                         } else {
3075                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3076                                                 error = EINVAL;
3077                                         }
3078                                 }
3079                         }
3080                         if (error == 0) {
3081                                 *optsize = sizeof(struct sctp_event);
3082                         }
3083                         break;
3084                 }
3085         case SCTP_RECVRCVINFO:
3086                 {
3087                         int onoff;
3088
3089                         if (*optsize < sizeof(int)) {
3090                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3091                                 error = EINVAL;
3092                         } else {
3093                                 SCTP_INP_RLOCK(inp);
3094                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3095                                 SCTP_INP_RUNLOCK(inp);
3096                         }
3097                         if (error == 0) {
3098                                 /* return the option value */
3099                                 *(int *)optval = onoff;
3100                                 *optsize = sizeof(int);
3101                         }
3102                         break;
3103                 }
3104         case SCTP_RECVNXTINFO:
3105                 {
3106                         int onoff;
3107
3108                         if (*optsize < sizeof(int)) {
3109                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3110                                 error = EINVAL;
3111                         } else {
3112                                 SCTP_INP_RLOCK(inp);
3113                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3114                                 SCTP_INP_RUNLOCK(inp);
3115                         }
3116                         if (error == 0) {
3117                                 /* return the option value */
3118                                 *(int *)optval = onoff;
3119                                 *optsize = sizeof(int);
3120                         }
3121                         break;
3122                 }
3123         case SCTP_DEFAULT_SNDINFO:
3124                 {
3125                         struct sctp_sndinfo *info;
3126
3127                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3128                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3129
3130                         if (stcb) {
3131                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3132                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3133                                 info->snd_flags &= 0xfff0;
3134                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3135                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3136                                 SCTP_TCB_UNLOCK(stcb);
3137                         } else {
3138                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3139                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3140                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3141                                         SCTP_INP_RLOCK(inp);
3142                                         info->snd_sid = inp->def_send.sinfo_stream;
3143                                         info->snd_flags = inp->def_send.sinfo_flags;
3144                                         info->snd_flags &= 0xfff0;
3145                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3146                                         info->snd_context = inp->def_send.sinfo_context;
3147                                         SCTP_INP_RUNLOCK(inp);
3148                                 } else {
3149                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3150                                         error = EINVAL;
3151                                 }
3152                         }
3153                         if (error == 0) {
3154                                 *optsize = sizeof(struct sctp_sndinfo);
3155                         }
3156                         break;
3157                 }
3158         case SCTP_DEFAULT_PRINFO:
3159                 {
3160                         struct sctp_default_prinfo *info;
3161
3162                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3163                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3164
3165                         if (stcb) {
3166                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3167                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3168                                 SCTP_TCB_UNLOCK(stcb);
3169                         } else {
3170                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3171                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3172                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3173                                         SCTP_INP_RLOCK(inp);
3174                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3175                                         info->pr_value = inp->def_send.sinfo_timetolive;
3176                                         SCTP_INP_RUNLOCK(inp);
3177                                 } else {
3178                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3179                                         error = EINVAL;
3180                                 }
3181                         }
3182                         if (error == 0) {
3183                                 *optsize = sizeof(struct sctp_default_prinfo);
3184                         }
3185                         break;
3186                 }
3187         case SCTP_PEER_ADDR_THLDS:
3188                 {
3189                         struct sctp_paddrthlds *thlds;
3190                         struct sctp_nets *net;
3191                         struct sockaddr *addr;
3192 #if defined(INET) && defined(INET6)
3193                         struct sockaddr_in sin_store;
3194 #endif
3195
3196                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3197                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3198
3199 #if defined(INET) && defined(INET6)
3200                         if (thlds->spt_address.ss_family == AF_INET6) {
3201                                 struct sockaddr_in6 *sin6;
3202
3203                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3204                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3205                                         in6_sin6_2_sin(&sin_store, sin6);
3206                                         addr = (struct sockaddr *)&sin_store;
3207                                 } else {
3208                                         addr = (struct sockaddr *)&thlds->spt_address;
3209                                 }
3210                         } else {
3211                                 addr = (struct sockaddr *)&thlds->spt_address;
3212                         }
3213 #else
3214                         addr = (struct sockaddr *)&thlds->spt_address;
3215 #endif
3216                         if (stcb != NULL) {
3217                                 net = sctp_findnet(stcb, addr);
3218                         } else {
3219                                 /*
3220                                  * We increment here since
3221                                  * sctp_findassociation_ep_addr() wil do a
3222                                  * decrement if it finds the stcb as long as
3223                                  * the locked tcb (last argument) is NOT a
3224                                  * TCB.. aka NULL.
3225                                  */
3226                                 net = NULL;
3227                                 SCTP_INP_INCR_REF(inp);
3228                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3229                                 if (stcb == NULL) {
3230                                         SCTP_INP_DECR_REF(inp);
3231                                 }
3232                         }
3233                         if ((stcb != NULL) && (net == NULL)) {
3234 #ifdef INET
3235                                 if (addr->sa_family == AF_INET) {
3236                                         struct sockaddr_in *sin;
3237
3238                                         sin = (struct sockaddr_in *)addr;
3239                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3240                                                 error = EINVAL;
3241                                                 SCTP_TCB_UNLOCK(stcb);
3242                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3243                                                 break;
3244                                         }
3245                                 } else
3246 #endif
3247 #ifdef INET6
3248                                 if (addr->sa_family == AF_INET6) {
3249                                         struct sockaddr_in6 *sin6;
3250
3251                                         sin6 = (struct sockaddr_in6 *)addr;
3252                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3253                                                 error = EINVAL;
3254                                                 SCTP_TCB_UNLOCK(stcb);
3255                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3256                                                 break;
3257                                         }
3258                                 } else
3259 #endif
3260                                 {
3261                                         error = EAFNOSUPPORT;
3262                                         SCTP_TCB_UNLOCK(stcb);
3263                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3264                                         break;
3265                                 }
3266                         }
3267                         if (stcb != NULL) {
3268                                 if (net != NULL) {
3269                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3270                                         thlds->spt_pathpfthld = net->pf_threshold;
3271                                         thlds->spt_pathcpthld = 0xffff;
3272                                 } else {
3273                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3274                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3275                                         thlds->spt_pathcpthld = 0xffff;
3276                                 }
3277                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3278                                 SCTP_TCB_UNLOCK(stcb);
3279                         } else {
3280                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3281                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3282                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3283                                         /* Use endpoint defaults */
3284                                         SCTP_INP_RLOCK(inp);
3285                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3286                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3287                                         thlds->spt_pathcpthld = 0xffff;
3288                                         SCTP_INP_RUNLOCK(inp);
3289                                 } else {
3290                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3291                                         error = EINVAL;
3292                                 }
3293                         }
3294                         if (error == 0) {
3295                                 *optsize = sizeof(struct sctp_paddrthlds);
3296                         }
3297                         break;
3298                 }
3299         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3300                 {
3301                         struct sctp_udpencaps *encaps;
3302                         struct sctp_nets *net;
3303                         struct sockaddr *addr;
3304 #if defined(INET) && defined(INET6)
3305                         struct sockaddr_in sin_store;
3306 #endif
3307
3308                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3309                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3310
3311 #if defined(INET) && defined(INET6)
3312                         if (encaps->sue_address.ss_family == AF_INET6) {
3313                                 struct sockaddr_in6 *sin6;
3314
3315                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3316                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3317                                         in6_sin6_2_sin(&sin_store, sin6);
3318                                         addr = (struct sockaddr *)&sin_store;
3319                                 } else {
3320                                         addr = (struct sockaddr *)&encaps->sue_address;
3321                                 }
3322                         } else {
3323                                 addr = (struct sockaddr *)&encaps->sue_address;
3324                         }
3325 #else
3326                         addr = (struct sockaddr *)&encaps->sue_address;
3327 #endif
3328                         if (stcb) {
3329                                 net = sctp_findnet(stcb, addr);
3330                         } else {
3331                                 /*
3332                                  * We increment here since
3333                                  * sctp_findassociation_ep_addr() wil do a
3334                                  * decrement if it finds the stcb as long as
3335                                  * the locked tcb (last argument) is NOT a
3336                                  * TCB.. aka NULL.
3337                                  */
3338                                 net = NULL;
3339                                 SCTP_INP_INCR_REF(inp);
3340                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3341                                 if (stcb == NULL) {
3342                                         SCTP_INP_DECR_REF(inp);
3343                                 }
3344                         }
3345                         if ((stcb != NULL) && (net == NULL)) {
3346 #ifdef INET
3347                                 if (addr->sa_family == AF_INET) {
3348                                         struct sockaddr_in *sin;
3349
3350                                         sin = (struct sockaddr_in *)addr;
3351                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3352                                                 error = EINVAL;
3353                                                 SCTP_TCB_UNLOCK(stcb);
3354                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3355                                                 break;
3356                                         }
3357                                 } else
3358 #endif
3359 #ifdef INET6
3360                                 if (addr->sa_family == AF_INET6) {
3361                                         struct sockaddr_in6 *sin6;
3362
3363                                         sin6 = (struct sockaddr_in6 *)addr;
3364                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3365                                                 error = EINVAL;
3366                                                 SCTP_TCB_UNLOCK(stcb);
3367                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3368                                                 break;
3369                                         }
3370                                 } else
3371 #endif
3372                                 {
3373                                         error = EAFNOSUPPORT;
3374                                         SCTP_TCB_UNLOCK(stcb);
3375                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3376                                         break;
3377                                 }
3378                         }
3379                         if (stcb != NULL) {
3380                                 if (net) {
3381                                         encaps->sue_port = net->port;
3382                                 } else {
3383                                         encaps->sue_port = stcb->asoc.port;
3384                                 }
3385                                 SCTP_TCB_UNLOCK(stcb);
3386                         } else {
3387                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3388                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3389                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3390                                         SCTP_INP_RLOCK(inp);
3391                                         encaps->sue_port = inp->sctp_ep.port;
3392                                         SCTP_INP_RUNLOCK(inp);
3393                                 } else {
3394                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3395                                         error = EINVAL;
3396                                 }
3397                         }
3398                         if (error == 0) {
3399                                 *optsize = sizeof(struct sctp_udpencaps);
3400                         }
3401                         break;
3402                 }
3403         case SCTP_ECN_SUPPORTED:
3404                 {
3405                         struct sctp_assoc_value *av;
3406
3407                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3408                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3409
3410                         if (stcb) {
3411                                 av->assoc_value = stcb->asoc.ecn_supported;
3412                                 SCTP_TCB_UNLOCK(stcb);
3413                         } else {
3414                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3415                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3416                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3417                                         SCTP_INP_RLOCK(inp);
3418                                         av->assoc_value = inp->ecn_supported;
3419                                         SCTP_INP_RUNLOCK(inp);
3420                                 } else {
3421                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3422                                         error = EINVAL;
3423                                 }
3424                         }
3425                         if (error == 0) {
3426                                 *optsize = sizeof(struct sctp_assoc_value);
3427                         }
3428                         break;
3429                 }
3430         case SCTP_PR_SUPPORTED:
3431                 {
3432                         struct sctp_assoc_value *av;
3433
3434                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3435                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3436
3437                         if (stcb) {
3438                                 av->assoc_value = stcb->asoc.prsctp_supported;
3439                                 SCTP_TCB_UNLOCK(stcb);
3440                         } else {
3441                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3442                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3443                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3444                                         SCTP_INP_RLOCK(inp);
3445                                         av->assoc_value = inp->prsctp_supported;
3446                                         SCTP_INP_RUNLOCK(inp);
3447                                 } else {
3448                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3449                                         error = EINVAL;
3450                                 }
3451                         }
3452                         if (error == 0) {
3453                                 *optsize = sizeof(struct sctp_assoc_value);
3454                         }
3455                         break;
3456                 }
3457         case SCTP_AUTH_SUPPORTED:
3458                 {
3459                         struct sctp_assoc_value *av;
3460
3461                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3462                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3463
3464                         if (stcb) {
3465                                 av->assoc_value = stcb->asoc.auth_supported;
3466                                 SCTP_TCB_UNLOCK(stcb);
3467                         } else {
3468                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3469                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3470                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3471                                         SCTP_INP_RLOCK(inp);
3472                                         av->assoc_value = inp->auth_supported;
3473                                         SCTP_INP_RUNLOCK(inp);
3474                                 } else {
3475                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3476                                         error = EINVAL;
3477                                 }
3478                         }
3479                         if (error == 0) {
3480                                 *optsize = sizeof(struct sctp_assoc_value);
3481                         }
3482                         break;
3483                 }
3484         case SCTP_ASCONF_SUPPORTED:
3485                 {
3486                         struct sctp_assoc_value *av;
3487
3488                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3489                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3490
3491                         if (stcb) {
3492                                 av->assoc_value = stcb->asoc.asconf_supported;
3493                                 SCTP_TCB_UNLOCK(stcb);
3494                         } else {
3495                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3496                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3497                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3498                                         SCTP_INP_RLOCK(inp);
3499                                         av->assoc_value = inp->asconf_supported;
3500                                         SCTP_INP_RUNLOCK(inp);
3501                                 } else {
3502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3503                                         error = EINVAL;
3504                                 }
3505                         }
3506                         if (error == 0) {
3507                                 *optsize = sizeof(struct sctp_assoc_value);
3508                         }
3509                         break;
3510                 }
3511         case SCTP_RECONFIG_SUPPORTED:
3512                 {
3513                         struct sctp_assoc_value *av;
3514
3515                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3516                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3517
3518                         if (stcb) {
3519                                 av->assoc_value = stcb->asoc.reconfig_supported;
3520                                 SCTP_TCB_UNLOCK(stcb);
3521                         } else {
3522                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3523                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3524                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3525                                         SCTP_INP_RLOCK(inp);
3526                                         av->assoc_value = inp->reconfig_supported;
3527                                         SCTP_INP_RUNLOCK(inp);
3528                                 } else {
3529                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3530                                         error = EINVAL;
3531                                 }
3532                         }
3533                         if (error == 0) {
3534                                 *optsize = sizeof(struct sctp_assoc_value);
3535                         }
3536                         break;
3537                 }
3538         case SCTP_NRSACK_SUPPORTED:
3539                 {
3540                         struct sctp_assoc_value *av;
3541
3542                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3543                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3544
3545                         if (stcb) {
3546                                 av->assoc_value = stcb->asoc.nrsack_supported;
3547                                 SCTP_TCB_UNLOCK(stcb);
3548                         } else {
3549                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3550                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3551                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3552                                         SCTP_INP_RLOCK(inp);
3553                                         av->assoc_value = inp->nrsack_supported;
3554                                         SCTP_INP_RUNLOCK(inp);
3555                                 } else {
3556                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3557                                         error = EINVAL;
3558                                 }
3559                         }
3560                         if (error == 0) {
3561                                 *optsize = sizeof(struct sctp_assoc_value);
3562                         }
3563                         break;
3564                 }
3565         case SCTP_PKTDROP_SUPPORTED:
3566                 {
3567                         struct sctp_assoc_value *av;
3568
3569                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3570                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3571
3572                         if (stcb) {
3573                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3574                                 SCTP_TCB_UNLOCK(stcb);
3575                         } else {
3576                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3577                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3578                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3579                                         SCTP_INP_RLOCK(inp);
3580                                         av->assoc_value = inp->pktdrop_supported;
3581                                         SCTP_INP_RUNLOCK(inp);
3582                                 } else {
3583                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3584                                         error = EINVAL;
3585                                 }
3586                         }
3587                         if (error == 0) {
3588                                 *optsize = sizeof(struct sctp_assoc_value);
3589                         }
3590                         break;
3591                 }
3592         case SCTP_ENABLE_STREAM_RESET:
3593                 {
3594                         struct sctp_assoc_value *av;
3595
3596                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3597                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3598
3599                         if (stcb) {
3600                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3601                                 SCTP_TCB_UNLOCK(stcb);
3602                         } else {
3603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3604                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3605                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3606                                         SCTP_INP_RLOCK(inp);
3607                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3608                                         SCTP_INP_RUNLOCK(inp);
3609                                 } else {
3610                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3611                                         error = EINVAL;
3612                                 }
3613                         }
3614                         if (error == 0) {
3615                                 *optsize = sizeof(struct sctp_assoc_value);
3616                         }
3617                         break;
3618                 }
3619         case SCTP_PR_STREAM_STATUS:
3620                 {
3621                         struct sctp_prstatus *sprstat;
3622                         uint16_t sid;
3623                         uint16_t policy;
3624
3625                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3626                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3627
3628                         sid = sprstat->sprstat_sid;
3629                         policy = sprstat->sprstat_policy;
3630 #if defined(SCTP_DETAILED_STR_STATS)
3631                         if ((stcb != NULL) &&
3632                             (sid < stcb->asoc.streamoutcnt) &&
3633                             (policy != SCTP_PR_SCTP_NONE) &&
3634                             ((policy <= SCTP_PR_SCTP_MAX) ||
3635                             (policy == SCTP_PR_SCTP_ALL))) {
3636                                 if (policy == SCTP_PR_SCTP_ALL) {
3637                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3638                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3639                                 } else {
3640                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3641                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3642                                 }
3643 #else
3644                         if ((stcb != NULL) &&
3645                             (sid < stcb->asoc.streamoutcnt) &&
3646                             (policy == SCTP_PR_SCTP_ALL)) {
3647                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3648                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3649 #endif
3650                                 SCTP_TCB_UNLOCK(stcb);
3651                                 *optsize = sizeof(struct sctp_prstatus);
3652                         } else {
3653                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3654                                 error = EINVAL;
3655                         }
3656                         break;
3657                 }
3658         case SCTP_PR_ASSOC_STATUS:
3659                 {
3660                         struct sctp_prstatus *sprstat;
3661                         uint16_t policy;
3662
3663                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3664                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3665
3666                         policy = sprstat->sprstat_policy;
3667                         if ((stcb != NULL) &&
3668                             (policy != SCTP_PR_SCTP_NONE) &&
3669                             ((policy <= SCTP_PR_SCTP_MAX) ||
3670                             (policy == SCTP_PR_SCTP_ALL))) {
3671                                 if (policy == SCTP_PR_SCTP_ALL) {
3672                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3673                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3674                                 } else {
3675                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3676                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3677                                 }
3678                                 SCTP_TCB_UNLOCK(stcb);
3679                                 *optsize = sizeof(struct sctp_prstatus);
3680                         } else {
3681                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3682                                 error = EINVAL;
3683                         }
3684                         break;
3685                 }
3686         case SCTP_MAX_CWND:
3687                 {
3688                         struct sctp_assoc_value *av;
3689
3690                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3691                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3692
3693                         if (stcb) {
3694                                 av->assoc_value = stcb->asoc.max_cwnd;
3695                                 SCTP_TCB_UNLOCK(stcb);
3696                         } else {
3697                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3698                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3699                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3700                                         SCTP_INP_RLOCK(inp);
3701                                         av->assoc_value = inp->max_cwnd;
3702                                         SCTP_INP_RUNLOCK(inp);
3703                                 } else {
3704                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3705                                         error = EINVAL;
3706                                 }
3707                         }
3708                         if (error == 0) {
3709                                 *optsize = sizeof(struct sctp_assoc_value);
3710                         }
3711                         break;
3712                 }
3713         default:
3714                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3715                 error = ENOPROTOOPT;
3716                 break;
3717         }                       /* end switch (sopt->sopt_name) */
3718         if (error) {
3719                 *optsize = 0;
3720         }
3721         return (error);
3722 }
3723
3724 static int
3725 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3726     void *p)
3727 {
3728         int error, set_opt;
3729         uint32_t *mopt;
3730         struct sctp_tcb *stcb = NULL;
3731         struct sctp_inpcb *inp = NULL;
3732         uint32_t vrf_id;
3733
3734         if (optval == NULL) {
3735                 SCTP_PRINTF("optval is NULL\n");
3736                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3737                 return (EINVAL);
3738         }
3739         inp = (struct sctp_inpcb *)so->so_pcb;
3740         if (inp == NULL) {
3741                 SCTP_PRINTF("inp is NULL?\n");
3742                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3743                 return (EINVAL);
3744         }
3745         vrf_id = inp->def_vrf_id;
3746
3747         error = 0;
3748         switch (optname) {
3749         case SCTP_NODELAY:
3750         case SCTP_AUTOCLOSE:
3751         case SCTP_AUTO_ASCONF:
3752         case SCTP_EXPLICIT_EOR:
3753         case SCTP_DISABLE_FRAGMENTS:
3754         case SCTP_USE_EXT_RCVINFO:
3755         case SCTP_I_WANT_MAPPED_V4_ADDR:
3756                 /* copy in the option value */
3757                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3758                 set_opt = 0;
3759                 if (error)
3760                         break;
3761                 switch (optname) {
3762                 case SCTP_DISABLE_FRAGMENTS:
3763                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3764                         break;
3765                 case SCTP_AUTO_ASCONF:
3766                         /*
3767                          * NOTE: we don't really support this flag
3768                          */
3769                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3770                                 /* only valid for bound all sockets */
3771                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3772                                     (*mopt != 0)) {
3773                                         /* forbidden by admin */
3774                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3775                                         return (EPERM);
3776                                 }
3777                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3778                         } else {
3779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3780                                 return (EINVAL);
3781                         }
3782                         break;
3783                 case SCTP_EXPLICIT_EOR:
3784                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3785                         break;
3786                 case SCTP_USE_EXT_RCVINFO:
3787                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3788                         break;
3789                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3790                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3791                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3792                         } else {
3793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3794                                 return (EINVAL);
3795                         }
3796                         break;
3797                 case SCTP_NODELAY:
3798                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3799                         break;
3800                 case SCTP_AUTOCLOSE:
3801                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3802                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3803                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3804                                 return (EINVAL);
3805                         }
3806                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3807                         /*
3808                          * The value is in ticks. Note this does not effect
3809                          * old associations, only new ones.
3810                          */
3811                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3812                         break;
3813                 }
3814                 SCTP_INP_WLOCK(inp);
3815                 if (*mopt != 0) {
3816                         sctp_feature_on(inp, set_opt);
3817                 } else {
3818                         sctp_feature_off(inp, set_opt);
3819                 }
3820                 SCTP_INP_WUNLOCK(inp);
3821                 break;
3822         case SCTP_REUSE_PORT:
3823                 {
3824                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3825                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3826                                 /* Can't set it after we are bound */
3827                                 error = EINVAL;
3828                                 break;
3829                         }
3830                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3831                                 /* Can't do this for a 1-m socket */
3832                                 error = EINVAL;
3833                                 break;
3834                         }
3835                         if (optval)
3836                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3837                         else
3838                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3839                         break;
3840                 }
3841         case SCTP_PARTIAL_DELIVERY_POINT:
3842                 {
3843                         uint32_t *value;
3844
3845                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3846                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3848                                 error = EINVAL;
3849                                 break;
3850                         }
3851                         inp->partial_delivery_point = *value;
3852                         break;
3853                 }
3854         case SCTP_FRAGMENT_INTERLEAVE:
3855                 /* not yet until we re-write sctp_recvmsg() */
3856                 {
3857                         uint32_t *level;
3858
3859                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3860                         if (*level == SCTP_FRAG_LEVEL_2) {
3861                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3862                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3863                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3864                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3865                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3866                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3867                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3868                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3869
3870                         } else {
3871                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3872                                 error = EINVAL;
3873                         }
3874                         break;
3875                 }
3876         case SCTP_INTERLEAVING_SUPPORTED:
3877                 {
3878                         struct sctp_assoc_value *av;
3879
3880                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3881                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3882
3883                         if (stcb) {
3884                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3885                                 error = EINVAL;
3886                                 SCTP_TCB_UNLOCK(stcb);
3887                         } else {
3888                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3889                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3890                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3891                                         SCTP_INP_WLOCK(inp);
3892                                         if (av->assoc_value == 0) {
3893                                                 inp->idata_supported = 0;
3894                                         } else {
3895                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3896                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3897                                                         inp->idata_supported = 1;
3898                                                 } else {
3899                                                         /*
3900                                                          * Must have Frag
3901                                                          * interleave and
3902                                                          * stream interleave
3903                                                          * on
3904                                                          */
3905                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3906                                                         error = EINVAL;
3907                                                 }
3908                                         }
3909                                         SCTP_INP_WUNLOCK(inp);
3910                                 } else {
3911                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3912                                         error = EINVAL;
3913                                 }
3914                         }
3915                         break;
3916                 }
3917         case SCTP_CMT_ON_OFF:
3918                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3919                         struct sctp_assoc_value *av;
3920
3921                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3922                         if (av->assoc_value > SCTP_CMT_MAX) {
3923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3924                                 error = EINVAL;
3925                                 break;
3926                         }
3927                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3928                         if (stcb) {
3929                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3930                                 SCTP_TCB_UNLOCK(stcb);
3931                         } else {
3932                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3933                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3934                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3935                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3936                                         SCTP_INP_WLOCK(inp);
3937                                         inp->sctp_cmt_on_off = av->assoc_value;
3938                                         SCTP_INP_WUNLOCK(inp);
3939                                 }
3940                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3941                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3942                                         SCTP_INP_RLOCK(inp);
3943                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3944                                                 SCTP_TCB_LOCK(stcb);
3945                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3946                                                 SCTP_TCB_UNLOCK(stcb);
3947                                         }
3948                                         SCTP_INP_RUNLOCK(inp);
3949                                 }
3950                         }
3951                 } else {
3952                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3953                         error = ENOPROTOOPT;
3954                 }
3955                 break;
3956         case SCTP_PLUGGABLE_CC:
3957                 {
3958                         struct sctp_assoc_value *av;
3959                         struct sctp_nets *net;
3960
3961                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3962                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3963                             (av->assoc_value != SCTP_CC_HSTCP) &&
3964                             (av->assoc_value != SCTP_CC_HTCP) &&
3965                             (av->assoc_value != SCTP_CC_RTCC)) {
3966                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3967                                 error = EINVAL;
3968                                 break;
3969                         }
3970                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3971                         if (stcb) {
3972                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3973                                 stcb->asoc.congestion_control_module = av->assoc_value;
3974                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3975                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3976                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3977                                         }
3978                                 }
3979                                 SCTP_TCB_UNLOCK(stcb);
3980                         } else {
3981                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3982                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3983                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3984                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3985                                         SCTP_INP_WLOCK(inp);
3986                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3987                                         SCTP_INP_WUNLOCK(inp);
3988                                 }
3989                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3990                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3991                                         SCTP_INP_RLOCK(inp);
3992                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3993                                                 SCTP_TCB_LOCK(stcb);
3994                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3995                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3996                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3997                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3998                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3999                                                         }
4000                                                 }
4001                                                 SCTP_TCB_UNLOCK(stcb);
4002                                         }
4003                                         SCTP_INP_RUNLOCK(inp);
4004                                 }
4005                         }
4006                         break;
4007                 }
4008         case SCTP_CC_OPTION:
4009                 {
4010                         struct sctp_cc_option *cc_opt;
4011
4012                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4013                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4014                         if (stcb == NULL) {
4015                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4016                                         SCTP_INP_RLOCK(inp);
4017                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4018                                                 SCTP_TCB_LOCK(stcb);
4019                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4020                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4021                                                 }
4022                                                 SCTP_TCB_UNLOCK(stcb);
4023                                         }
4024                                         SCTP_INP_RUNLOCK(inp);
4025                                 } else {
4026                                         error = EINVAL;
4027                                 }
4028                         } else {
4029                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4030                                         error = ENOTSUP;
4031                                 } else {
4032                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4033                                             cc_opt);
4034                                 }
4035                                 SCTP_TCB_UNLOCK(stcb);
4036                         }
4037                         break;
4038                 }
4039         case SCTP_PLUGGABLE_SS:
4040                 {
4041                         struct sctp_assoc_value *av;
4042
4043                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4044                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4045                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4046                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4047                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4048                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4049                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4050                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4051                                 error = EINVAL;
4052                                 break;
4053                         }
4054                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4055                         if (stcb) {
4056                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4057                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4058                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4059                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4060                                 SCTP_TCB_UNLOCK(stcb);
4061                         } else {
4062                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4063                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4064                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4065                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4066                                         SCTP_INP_WLOCK(inp);
4067                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4068                                         SCTP_INP_WUNLOCK(inp);
4069                                 }
4070                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4071                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4072                                         SCTP_INP_RLOCK(inp);
4073                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4074                                                 SCTP_TCB_LOCK(stcb);
4075                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4076                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4077                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4078                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4079                                                 SCTP_TCB_UNLOCK(stcb);
4080                                         }
4081                                         SCTP_INP_RUNLOCK(inp);
4082                                 }
4083                         }
4084                         break;
4085                 }
4086         case SCTP_SS_VALUE:
4087                 {
4088                         struct sctp_stream_value *av;
4089
4090                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4091                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4092                         if (stcb) {
4093                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4094                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4095                                     av->stream_value) < 0)) {
4096                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4097                                         error = EINVAL;
4098                                 }
4099                                 SCTP_TCB_UNLOCK(stcb);
4100                         } else {
4101                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4102                                         SCTP_INP_RLOCK(inp);
4103                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4104                                                 SCTP_TCB_LOCK(stcb);
4105                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4106                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4107                                                             &stcb->asoc,
4108                                                             &stcb->asoc.strmout[av->stream_id],
4109                                                             av->stream_value);
4110                                                 }
4111                                                 SCTP_TCB_UNLOCK(stcb);
4112                                         }
4113                                         SCTP_INP_RUNLOCK(inp);
4114                                 } else {
4115                                         /*
4116                                          * Can't set stream value without
4117                                          * association
4118                                          */
4119                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4120                                         error = EINVAL;
4121                                 }
4122                         }
4123                         break;
4124                 }
4125         case SCTP_CLR_STAT_LOG:
4126                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4127                 error = EOPNOTSUPP;
4128                 break;
4129         case SCTP_CONTEXT:
4130                 {
4131                         struct sctp_assoc_value *av;
4132
4133                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4134                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4135
4136                         if (stcb) {
4137                                 stcb->asoc.context = av->assoc_value;
4138                                 SCTP_TCB_UNLOCK(stcb);
4139                         } else {
4140                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4141                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4142                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4143                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4144                                         SCTP_INP_WLOCK(inp);
4145                                         inp->sctp_context = av->assoc_value;
4146                                         SCTP_INP_WUNLOCK(inp);
4147                                 }
4148                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4149                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4150                                         SCTP_INP_RLOCK(inp);
4151                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4152                                                 SCTP_TCB_LOCK(stcb);
4153                                                 stcb->asoc.context = av->assoc_value;
4154                                                 SCTP_TCB_UNLOCK(stcb);
4155                                         }
4156                                         SCTP_INP_RUNLOCK(inp);
4157                                 }
4158                         }
4159                         break;
4160                 }
4161         case SCTP_VRF_ID:
4162                 {
4163                         uint32_t *default_vrfid;
4164
4165                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4166                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4167                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4168                                 error = EINVAL;
4169                                 break;
4170                         }
4171                         inp->def_vrf_id = *default_vrfid;
4172                         break;
4173                 }
4174         case SCTP_DEL_VRF_ID:
4175                 {
4176                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4177                         error = EOPNOTSUPP;
4178                         break;
4179                 }
4180         case SCTP_ADD_VRF_ID:
4181                 {
4182                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4183                         error = EOPNOTSUPP;
4184                         break;
4185                 }
4186         case SCTP_DELAYED_SACK:
4187                 {
4188                         struct sctp_sack_info *sack;
4189
4190                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4191                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4192                         if (sack->sack_delay) {
4193                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4194                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4195                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4196                                         sack->sack_delay = TICKS_TO_MSEC(1);
4197                                 }
4198                         }
4199                         if (stcb) {
4200                                 if (sack->sack_delay) {
4201                                         stcb->asoc.delayed_ack = sack->sack_delay;
4202                                 }
4203                                 if (sack->sack_freq) {
4204                                         stcb->asoc.sack_freq = sack->sack_freq;
4205                                 }
4206                                 SCTP_TCB_UNLOCK(stcb);
4207                         } else {
4208                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4209                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4210                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4211                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4212                                         SCTP_INP_WLOCK(inp);
4213                                         if (sack->sack_delay) {
4214                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4215                                         }
4216                                         if (sack->sack_freq) {
4217                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4218                                         }
4219                                         SCTP_INP_WUNLOCK(inp);
4220                                 }
4221                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4222                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4223                                         SCTP_INP_RLOCK(inp);
4224                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4225                                                 SCTP_TCB_LOCK(stcb);
4226                                                 if (sack->sack_delay) {
4227                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4228                                                 }
4229                                                 if (sack->sack_freq) {
4230                                                         stcb->asoc.sack_freq = sack->sack_freq;
4231                                                 }
4232                                                 SCTP_TCB_UNLOCK(stcb);
4233                                         }
4234                                         SCTP_INP_RUNLOCK(inp);
4235                                 }
4236                         }
4237                         break;
4238                 }
4239         case SCTP_AUTH_CHUNK:
4240                 {
4241                         struct sctp_authchunk *sauth;
4242
4243                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4244
4245                         SCTP_INP_WLOCK(inp);
4246                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4247                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4248                                 error = EINVAL;
4249                         }
4250                         SCTP_INP_WUNLOCK(inp);
4251                         break;
4252                 }
4253         case SCTP_AUTH_KEY:
4254                 {
4255                         struct sctp_authkey *sca;
4256                         struct sctp_keyhead *shared_keys;
4257                         sctp_sharedkey_t *shared_key;
4258                         sctp_key_t *key = NULL;
4259                         size_t size;
4260
4261                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4262                         if (sca->sca_keylength == 0) {
4263                                 size = optsize - sizeof(struct sctp_authkey);
4264                         } else {
4265                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4266                                         size = sca->sca_keylength;
4267                                 } else {
4268                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4269                                         error = EINVAL;
4270                                         break;
4271                                 }
4272                         }
4273                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4274
4275                         if (stcb) {
4276                                 shared_keys = &stcb->asoc.shared_keys;
4277                                 /* clear the cached keys for this key id */
4278                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4279                                 /*
4280                                  * create the new shared key and
4281                                  * insert/replace it
4282                                  */
4283                                 if (size > 0) {
4284                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4285                                         if (key == NULL) {
4286                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4287                                                 error = ENOMEM;
4288                                                 SCTP_TCB_UNLOCK(stcb);
4289                                                 break;
4290                                         }
4291                                 }
4292                                 shared_key = sctp_alloc_sharedkey();
4293                                 if (shared_key == NULL) {
4294                                         sctp_free_key(key);
4295                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4296                                         error = ENOMEM;
4297                                         SCTP_TCB_UNLOCK(stcb);
4298                                         break;
4299                                 }
4300                                 shared_key->key = key;
4301                                 shared_key->keyid = sca->sca_keynumber;
4302                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4303                                 SCTP_TCB_UNLOCK(stcb);
4304                         } else {
4305                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4306                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4307                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4308                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4309                                         SCTP_INP_WLOCK(inp);
4310                                         shared_keys = &inp->sctp_ep.shared_keys;
4311                                         /*
4312                                          * clear the cached keys on all
4313                                          * assocs for this key id
4314                                          */
4315                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4316                                         /*
4317                                          * create the new shared key and
4318                                          * insert/replace it
4319                                          */
4320                                         if (size > 0) {
4321                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4322                                                 if (key == NULL) {
4323                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4324                                                         error = ENOMEM;
4325                                                         SCTP_INP_WUNLOCK(inp);
4326                                                         break;
4327                                                 }
4328                                         }
4329                                         shared_key = sctp_alloc_sharedkey();
4330                                         if (shared_key == NULL) {
4331                                                 sctp_free_key(key);
4332                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4333                                                 error = ENOMEM;
4334                                                 SCTP_INP_WUNLOCK(inp);
4335                                                 break;
4336                                         }
4337                                         shared_key->key = key;
4338                                         shared_key->keyid = sca->sca_keynumber;
4339                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4340                                         SCTP_INP_WUNLOCK(inp);
4341                                 }
4342                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4343                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4344                                         SCTP_INP_RLOCK(inp);
4345                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4346                                                 SCTP_TCB_LOCK(stcb);
4347                                                 shared_keys = &stcb->asoc.shared_keys;
4348                                                 /*
4349                                                  * clear the cached keys for
4350                                                  * this key id
4351                                                  */
4352                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4353                                                 /*
4354                                                  * create the new shared key
4355                                                  * and insert/replace it
4356                                                  */
4357                                                 if (size > 0) {
4358                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4359                                                         if (key == NULL) {
4360                                                                 SCTP_TCB_UNLOCK(stcb);
4361                                                                 continue;
4362                                                         }
4363                                                 }
4364                                                 shared_key = sctp_alloc_sharedkey();
4365                                                 if (shared_key == NULL) {
4366                                                         sctp_free_key(key);
4367                                                         SCTP_TCB_UNLOCK(stcb);
4368                                                         continue;
4369                                                 }
4370                                                 shared_key->key = key;
4371                                                 shared_key->keyid = sca->sca_keynumber;
4372                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4373                                                 SCTP_TCB_UNLOCK(stcb);
4374                                         }
4375                                         SCTP_INP_RUNLOCK(inp);
4376                                 }
4377                         }
4378                         break;
4379                 }
4380         case SCTP_HMAC_IDENT:
4381                 {
4382                         struct sctp_hmacalgo *shmac;
4383                         sctp_hmaclist_t *hmaclist;
4384                         uint16_t hmacid;
4385                         uint32_t i;
4386
4387                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4388                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4389                             (shmac->shmac_number_of_idents > 0xffff)) {
4390                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4391                                 error = EINVAL;
4392                                 break;
4393                         }
4394                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4395                         if (hmaclist == NULL) {
4396                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4397                                 error = ENOMEM;
4398                                 break;
4399                         }
4400                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4401                                 hmacid = shmac->shmac_idents[i];
4402                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4403                                          /* invalid HMACs were found */ ;
4404                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4405                                         error = EINVAL;
4406                                         sctp_free_hmaclist(hmaclist);
4407                                         goto sctp_set_hmac_done;
4408                                 }
4409                         }
4410                         for (i = 0; i < hmaclist->num_algo; i++) {
4411                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4412                                         /* already in list */
4413                                         break;
4414                                 }
4415                         }
4416                         if (i == hmaclist->num_algo) {
4417                                 /* not found in list */
4418                                 sctp_free_hmaclist(hmaclist);
4419                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4420                                 error = EINVAL;
4421                                 break;
4422                         }
4423                         /* set it on the endpoint */
4424                         SCTP_INP_WLOCK(inp);
4425                         if (inp->sctp_ep.local_hmacs)
4426                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4427                         inp->sctp_ep.local_hmacs = hmaclist;
4428                         SCTP_INP_WUNLOCK(inp);
4429         sctp_set_hmac_done:
4430                         break;
4431                 }
4432         case SCTP_AUTH_ACTIVE_KEY:
4433                 {
4434                         struct sctp_authkeyid *scact;
4435
4436                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4437                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4438
4439                         /* set the active key on the right place */
4440                         if (stcb) {
4441                                 /* set the active key on the assoc */
4442                                 if (sctp_auth_setactivekey(stcb,
4443                                     scact->scact_keynumber)) {
4444                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4445                                             SCTP_FROM_SCTP_USRREQ,
4446                                             EINVAL);
4447                                         error = EINVAL;
4448                                 }
4449                                 SCTP_TCB_UNLOCK(stcb);
4450                         } else {
4451                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4452                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4453                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4454                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4455                                         SCTP_INP_WLOCK(inp);
4456                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4457                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4458                                                 error = EINVAL;
4459                                         }
4460                                         SCTP_INP_WUNLOCK(inp);
4461                                 }
4462                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4463                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4464                                         SCTP_INP_RLOCK(inp);
4465                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4466                                                 SCTP_TCB_LOCK(stcb);
4467                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4468                                                 SCTP_TCB_UNLOCK(stcb);
4469                                         }
4470                                         SCTP_INP_RUNLOCK(inp);
4471                                 }
4472                         }
4473                         break;
4474                 }
4475         case SCTP_AUTH_DELETE_KEY:
4476                 {
4477                         struct sctp_authkeyid *scdel;
4478
4479                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4480                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4481
4482                         /* delete the key from the right place */
4483                         if (stcb) {
4484                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4485                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4486                                         error = EINVAL;
4487                                 }
4488                                 SCTP_TCB_UNLOCK(stcb);
4489                         } else {
4490                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4491                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4492                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4493                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4494                                         SCTP_INP_WLOCK(inp);
4495                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4496                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4497                                                 error = EINVAL;
4498                                         }
4499                                         SCTP_INP_WUNLOCK(inp);
4500                                 }
4501                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4502                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4503                                         SCTP_INP_RLOCK(inp);
4504                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4505                                                 SCTP_TCB_LOCK(stcb);
4506                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4507                                                 SCTP_TCB_UNLOCK(stcb);
4508                                         }
4509                                         SCTP_INP_RUNLOCK(inp);
4510                                 }
4511                         }
4512                         break;
4513                 }
4514         case SCTP_AUTH_DEACTIVATE_KEY:
4515                 {
4516                         struct sctp_authkeyid *keyid;
4517
4518                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4519                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4520
4521                         /* deactivate the key from the right place */
4522                         if (stcb) {
4523                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4524                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4525                                         error = EINVAL;
4526                                 }
4527                                 SCTP_TCB_UNLOCK(stcb);
4528                         } else {
4529                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4530                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4531                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4532                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4533                                         SCTP_INP_WLOCK(inp);
4534                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4535                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4536                                                 error = EINVAL;
4537                                         }
4538                                         SCTP_INP_WUNLOCK(inp);
4539                                 }
4540                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4541                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4542                                         SCTP_INP_RLOCK(inp);
4543                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4544                                                 SCTP_TCB_LOCK(stcb);
4545                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4546                                                 SCTP_TCB_UNLOCK(stcb);
4547                                         }
4548                                         SCTP_INP_RUNLOCK(inp);
4549                                 }
4550                         }
4551                         break;
4552                 }
4553         case SCTP_ENABLE_STREAM_RESET:
4554                 {
4555                         struct sctp_assoc_value *av;
4556
4557                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4558                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4559                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4560                                 error = EINVAL;
4561                                 break;
4562                         }
4563                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4564                         if (stcb) {
4565                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4566                                 SCTP_TCB_UNLOCK(stcb);
4567                         } else {
4568                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4569                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4570                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4571                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4572                                         SCTP_INP_WLOCK(inp);
4573                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4574                                         SCTP_INP_WUNLOCK(inp);
4575                                 }
4576                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4577                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4578                                         SCTP_INP_RLOCK(inp);
4579                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4580                                                 SCTP_TCB_LOCK(stcb);
4581                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4582                                                 SCTP_TCB_UNLOCK(stcb);
4583                                         }
4584                                         SCTP_INP_RUNLOCK(inp);
4585                                 }
4586                         }
4587                         break;
4588                 }
4589         case SCTP_RESET_STREAMS:
4590                 {
4591                         struct sctp_reset_streams *strrst;
4592                         int i, send_out = 0;
4593                         int send_in = 0;
4594
4595                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4596                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4597                         if (stcb == NULL) {
4598                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4599                                 error = ENOENT;
4600                                 break;
4601                         }
4602                         if (stcb->asoc.reconfig_supported == 0) {
4603                                 /*
4604                                  * Peer does not support the chunk type.
4605                                  */
4606                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4607                                 error = EOPNOTSUPP;
4608                                 SCTP_TCB_UNLOCK(stcb);
4609                                 break;
4610                         }
4611                         if (sizeof(struct sctp_reset_streams) +
4612                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4613                                 error = EINVAL;
4614                                 SCTP_TCB_UNLOCK(stcb);
4615                                 break;
4616                         }
4617                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4618                                 send_in = 1;
4619                                 if (stcb->asoc.stream_reset_outstanding) {
4620                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4621                                         error = EALREADY;
4622                                         SCTP_TCB_UNLOCK(stcb);
4623                                         break;
4624                                 }
4625                         }
4626                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4627                                 send_out = 1;
4628                         }
4629                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4630                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4631                                 error = ENOMEM;
4632                                 SCTP_TCB_UNLOCK(stcb);
4633                                 break;
4634                         }
4635                         if ((send_in == 0) && (send_out == 0)) {
4636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4637                                 error = EINVAL;
4638                                 SCTP_TCB_UNLOCK(stcb);
4639                                 break;
4640                         }
4641                         for (i = 0; i < strrst->srs_number_streams; i++) {
4642                                 if ((send_in) &&
4643                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4644                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4645                                         error = EINVAL;
4646                                         break;
4647                                 }
4648                                 if ((send_out) &&
4649                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4651                                         error = EINVAL;
4652                                         break;
4653                                 }
4654                         }
4655                         if (error) {
4656                                 SCTP_TCB_UNLOCK(stcb);
4657                                 break;
4658                         }
4659                         if (send_out) {
4660                                 int cnt;
4661                                 uint16_t strm;
4662
4663                                 if (strrst->srs_number_streams) {
4664                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4665                                                 strm = strrst->srs_stream_list[i];
4666                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4667                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4668                                                         cnt++;
4669                                                 }
4670                                         }
4671                                 } else {
4672                                         /* Its all */
4673                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4674                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4675                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4676                                                         cnt++;
4677                                                 }
4678                                         }
4679                                 }
4680                         }
4681                         if (send_in) {
4682                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4683                                     strrst->srs_stream_list,
4684                                     send_in, 0, 0, 0, 0, 0);
4685                         } else {
4686                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4687                         }
4688                         if (error == 0) {
4689                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4690                         } else {
4691                                 /*
4692                                  * For outgoing streams don't report any
4693                                  * problems in sending the request to the
4694                                  * application. XXX: Double check resetting
4695                                  * incoming streams.
4696                                  */
4697                                 error = 0;
4698                         }
4699                         SCTP_TCB_UNLOCK(stcb);
4700                         break;
4701                 }
4702         case SCTP_ADD_STREAMS:
4703                 {
4704                         struct sctp_add_streams *stradd;
4705                         uint8_t addstream = 0;
4706                         uint16_t add_o_strmcnt = 0;
4707                         uint16_t add_i_strmcnt = 0;
4708
4709                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4710                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4711                         if (stcb == NULL) {
4712                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4713                                 error = ENOENT;
4714                                 break;
4715                         }
4716                         if (stcb->asoc.reconfig_supported == 0) {
4717                                 /*
4718                                  * Peer does not support the chunk type.
4719                                  */
4720                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4721                                 error = EOPNOTSUPP;
4722                                 SCTP_TCB_UNLOCK(stcb);
4723                                 break;
4724                         }
4725                         if (stcb->asoc.stream_reset_outstanding) {
4726                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4727                                 error = EALREADY;
4728                                 SCTP_TCB_UNLOCK(stcb);
4729                                 break;
4730                         }
4731                         if ((stradd->sas_outstrms == 0) &&
4732                             (stradd->sas_instrms == 0)) {
4733                                 error = EINVAL;
4734                                 goto skip_stuff;
4735                         }
4736                         if (stradd->sas_outstrms) {
4737                                 addstream = 1;
4738                                 /* We allocate here */
4739                                 add_o_strmcnt = stradd->sas_outstrms;
4740                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4741                                         /* You can't have more than 64k */
4742                                         error = EINVAL;
4743                                         goto skip_stuff;
4744                                 }
4745                         }
4746                         if (stradd->sas_instrms) {
4747                                 int cnt;
4748
4749                                 addstream |= 2;
4750                                 /*
4751                                  * We allocate inside
4752                                  * sctp_send_str_reset_req()
4753                                  */
4754                                 add_i_strmcnt = stradd->sas_instrms;
4755                                 cnt = add_i_strmcnt;
4756                                 cnt += stcb->asoc.streamincnt;
4757                                 if (cnt > 0x0000ffff) {
4758                                         /* You can't have more than 64k */
4759                                         error = EINVAL;
4760                                         goto skip_stuff;
4761                                 }
4762                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4763                                         /* More than you are allowed */
4764                                         error = EINVAL;
4765                                         goto skip_stuff;
4766                                 }
4767                         }
4768                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4769                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4770         skip_stuff:
4771                         SCTP_TCB_UNLOCK(stcb);
4772                         break;
4773                 }
4774         case SCTP_RESET_ASSOC:
4775                 {
4776                         int i;
4777                         uint32_t *value;
4778
4779                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4780                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4781                         if (stcb == NULL) {
4782                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4783                                 error = ENOENT;
4784                                 break;
4785                         }
4786                         if (stcb->asoc.reconfig_supported == 0) {
4787                                 /*
4788                                  * Peer does not support the chunk type.
4789                                  */
4790                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4791                                 error = EOPNOTSUPP;
4792                                 SCTP_TCB_UNLOCK(stcb);
4793                                 break;
4794                         }
4795                         if (stcb->asoc.stream_reset_outstanding) {
4796                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4797                                 error = EALREADY;
4798                                 SCTP_TCB_UNLOCK(stcb);
4799                                 break;
4800                         }
4801                         /*
4802                          * Is there any data pending in the send or sent
4803                          * queues?
4804                          */
4805                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4806                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4807                 busy_out:
4808                                 error = EBUSY;
4809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4810                                 SCTP_TCB_UNLOCK(stcb);
4811                                 break;
4812                         }
4813                         /* Do any streams have data queued? */
4814                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4815                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4816                                         goto busy_out;
4817                                 }
4818                         }
4819                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4820                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4821                         SCTP_TCB_UNLOCK(stcb);
4822                         break;
4823                 }
4824         case SCTP_CONNECT_X:
4825                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4826                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4827                         error = EINVAL;
4828                         break;
4829                 }
4830                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4831                 break;
4832         case SCTP_CONNECT_X_DELAYED:
4833                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4834                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4835                         error = EINVAL;
4836                         break;
4837                 }
4838                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4839                 break;
4840         case SCTP_CONNECT_X_COMPLETE:
4841                 {
4842                         struct sockaddr *sa;
4843
4844                         /* FIXME MT: check correct? */
4845                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4846
4847                         /* find tcb */
4848                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4849                                 SCTP_INP_RLOCK(inp);
4850                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4851                                 if (stcb) {
4852                                         SCTP_TCB_LOCK(stcb);
4853                                 }
4854                                 SCTP_INP_RUNLOCK(inp);
4855                         } else {
4856                                 /*
4857                                  * We increment here since
4858                                  * sctp_findassociation_ep_addr() wil do a
4859                                  * decrement if it finds the stcb as long as
4860                                  * the locked tcb (last argument) is NOT a
4861                                  * TCB.. aka NULL.
4862                                  */
4863                                 SCTP_INP_INCR_REF(inp);
4864                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4865                                 if (stcb == NULL) {
4866                                         SCTP_INP_DECR_REF(inp);
4867                                 }
4868                         }
4869
4870                         if (stcb == NULL) {
4871                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4872                                 error = ENOENT;
4873                                 break;
4874                         }
4875                         if (stcb->asoc.delayed_connection == 1) {
4876                                 stcb->asoc.delayed_connection = 0;
4877                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4878                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4879                                     stcb->asoc.primary_destination,
4880                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4881                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4882                         } else {
4883                                 /*
4884                                  * already expired or did not use delayed
4885                                  * connectx
4886                                  */
4887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4888                                 error = EALREADY;
4889                         }
4890                         SCTP_TCB_UNLOCK(stcb);
4891                         break;
4892                 }
4893         case SCTP_MAX_BURST:
4894                 {
4895                         struct sctp_assoc_value *av;
4896
4897                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4898                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4899
4900                         if (stcb) {
4901                                 stcb->asoc.max_burst = av->assoc_value;
4902                                 SCTP_TCB_UNLOCK(stcb);
4903                         } else {
4904                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4905                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4906                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4907                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4908                                         SCTP_INP_WLOCK(inp);
4909                                         inp->sctp_ep.max_burst = av->assoc_value;
4910                                         SCTP_INP_WUNLOCK(inp);
4911                                 }
4912                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4913                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4914                                         SCTP_INP_RLOCK(inp);
4915                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4916                                                 SCTP_TCB_LOCK(stcb);
4917                                                 stcb->asoc.max_burst = av->assoc_value;
4918                                                 SCTP_TCB_UNLOCK(stcb);
4919                                         }
4920                                         SCTP_INP_RUNLOCK(inp);
4921                                 }
4922                         }
4923                         break;
4924                 }
4925         case SCTP_MAXSEG:
4926                 {
4927                         struct sctp_assoc_value *av;
4928                         int ovh;
4929
4930                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4931                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4932
4933                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4934                                 ovh = SCTP_MED_OVERHEAD;
4935                         } else {
4936                                 ovh = SCTP_MED_V4_OVERHEAD;
4937                         }
4938                         if (stcb) {
4939                                 if (av->assoc_value) {
4940                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4941                                 } else {
4942                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4943                                 }
4944                                 SCTP_TCB_UNLOCK(stcb);
4945                         } else {
4946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4948                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4949                                         SCTP_INP_WLOCK(inp);
4950                                         /*
4951                                          * FIXME MT: I think this is not in
4952                                          * tune with the API ID
4953                                          */
4954                                         if (av->assoc_value) {
4955                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4956                                         } else {
4957                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4958                                         }
4959                                         SCTP_INP_WUNLOCK(inp);
4960                                 } else {
4961                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4962                                         error = EINVAL;
4963                                 }
4964                         }
4965                         break;
4966                 }
4967         case SCTP_EVENTS:
4968                 {
4969                         struct sctp_event_subscribe *events;
4970
4971                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4972
4973                         SCTP_INP_WLOCK(inp);
4974                         if (events->sctp_data_io_event) {
4975                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4976                         } else {
4977                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4978                         }
4979
4980                         if (events->sctp_association_event) {
4981                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4982                         } else {
4983                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4984                         }
4985
4986                         if (events->sctp_address_event) {
4987                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4988                         } else {
4989                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4990                         }
4991
4992                         if (events->sctp_send_failure_event) {
4993                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4994                         } else {
4995                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4996                         }
4997
4998                         if (events->sctp_peer_error_event) {
4999                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5000                         } else {
5001                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5002                         }
5003
5004                         if (events->sctp_shutdown_event) {
5005                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5006                         } else {
5007                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5008                         }
5009
5010                         if (events->sctp_partial_delivery_event) {
5011                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5012                         } else {
5013                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5014                         }
5015
5016                         if (events->sctp_adaptation_layer_event) {
5017                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5018                         } else {
5019                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5020                         }
5021
5022                         if (events->sctp_authentication_event) {
5023                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5024                         } else {
5025                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5026                         }
5027
5028                         if (events->sctp_sender_dry_event) {
5029                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5030                         } else {
5031                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5032                         }
5033
5034                         if (events->sctp_stream_reset_event) {
5035                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5036                         } else {
5037                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5038                         }
5039                         SCTP_INP_WUNLOCK(inp);
5040
5041                         SCTP_INP_RLOCK(inp);
5042                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5043                                 SCTP_TCB_LOCK(stcb);
5044                                 if (events->sctp_association_event) {
5045                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5046                                 } else {
5047                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5048                                 }
5049                                 if (events->sctp_address_event) {
5050                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5051                                 } else {
5052                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5053                                 }
5054                                 if (events->sctp_send_failure_event) {
5055                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5056                                 } else {
5057                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5058                                 }
5059                                 if (events->sctp_peer_error_event) {
5060                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5061                                 } else {
5062                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5063                                 }
5064                                 if (events->sctp_shutdown_event) {
5065                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5066                                 } else {
5067                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5068                                 }
5069                                 if (events->sctp_partial_delivery_event) {
5070                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5071                                 } else {
5072                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5073                                 }
5074                                 if (events->sctp_adaptation_layer_event) {
5075                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5076                                 } else {
5077                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5078                                 }
5079                                 if (events->sctp_authentication_event) {
5080                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5081                                 } else {
5082                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5083                                 }
5084                                 if (events->sctp_sender_dry_event) {
5085                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5086                                 } else {
5087                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5088                                 }
5089                                 if (events->sctp_stream_reset_event) {
5090                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5091                                 } else {
5092                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5093                                 }
5094                                 SCTP_TCB_UNLOCK(stcb);
5095                         }
5096                         /*
5097                          * Send up the sender dry event only for 1-to-1
5098                          * style sockets.
5099                          */
5100                         if (events->sctp_sender_dry_event) {
5101                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5102                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5103                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5104                                         if (stcb) {
5105                                                 SCTP_TCB_LOCK(stcb);
5106                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5107                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5108                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5109                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5110                                                 }
5111                                                 SCTP_TCB_UNLOCK(stcb);
5112                                         }
5113                                 }
5114                         }
5115                         SCTP_INP_RUNLOCK(inp);
5116                         break;
5117                 }
5118         case SCTP_ADAPTATION_LAYER:
5119                 {
5120                         struct sctp_setadaptation *adap_bits;
5121
5122                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5123                         SCTP_INP_WLOCK(inp);
5124                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5125                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5126                         SCTP_INP_WUNLOCK(inp);
5127                         break;
5128                 }
5129 #ifdef SCTP_DEBUG
5130         case SCTP_SET_INITIAL_DBG_SEQ:
5131                 {
5132                         uint32_t *vvv;
5133
5134                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5135                         SCTP_INP_WLOCK(inp);
5136                         inp->sctp_ep.initial_sequence_debug = *vvv;
5137                         SCTP_INP_WUNLOCK(inp);
5138                         break;
5139                 }
5140 #endif
5141         case SCTP_DEFAULT_SEND_PARAM:
5142                 {
5143                         struct sctp_sndrcvinfo *s_info;
5144
5145                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5146                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5147
5148                         if (stcb) {
5149                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5150                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5151                                 } else {
5152                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5153                                         error = EINVAL;
5154                                 }
5155                                 SCTP_TCB_UNLOCK(stcb);
5156                         } else {
5157                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5158                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5159                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5160                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5161                                         SCTP_INP_WLOCK(inp);
5162                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5163                                         SCTP_INP_WUNLOCK(inp);
5164                                 }
5165                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5166                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5167                                         SCTP_INP_RLOCK(inp);
5168                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5169                                                 SCTP_TCB_LOCK(stcb);
5170                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5171                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5172                                                 }
5173                                                 SCTP_TCB_UNLOCK(stcb);
5174                                         }
5175                                         SCTP_INP_RUNLOCK(inp);
5176                                 }
5177                         }
5178                         break;
5179                 }
5180         case SCTP_PEER_ADDR_PARAMS:
5181                 {
5182                         struct sctp_paddrparams *paddrp;
5183                         struct sctp_nets *net;
5184                         struct sockaddr *addr;
5185 #if defined(INET) && defined(INET6)
5186                         struct sockaddr_in sin_store;
5187 #endif
5188
5189                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5190                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5191
5192 #if defined(INET) && defined(INET6)
5193                         if (paddrp->spp_address.ss_family == AF_INET6) {
5194                                 struct sockaddr_in6 *sin6;
5195
5196                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5197                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5198                                         in6_sin6_2_sin(&sin_store, sin6);
5199                                         addr = (struct sockaddr *)&sin_store;
5200                                 } else {
5201                                         addr = (struct sockaddr *)&paddrp->spp_address;
5202                                 }
5203                         } else {
5204                                 addr = (struct sockaddr *)&paddrp->spp_address;
5205                         }
5206 #else
5207                         addr = (struct sockaddr *)&paddrp->spp_address;
5208 #endif
5209                         if (stcb != NULL) {
5210                                 net = sctp_findnet(stcb, addr);
5211                         } else {
5212                                 /*
5213                                  * We increment here since
5214                                  * sctp_findassociation_ep_addr() wil do a
5215                                  * decrement if it finds the stcb as long as
5216                                  * the locked tcb (last argument) is NOT a
5217                                  * TCB.. aka NULL.
5218                                  */
5219                                 net = NULL;
5220                                 SCTP_INP_INCR_REF(inp);
5221                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5222                                     &net, NULL, NULL);
5223                                 if (stcb == NULL) {
5224                                         SCTP_INP_DECR_REF(inp);
5225                                 }
5226                         }
5227                         if ((stcb != NULL) && (net == NULL)) {
5228 #ifdef INET
5229                                 if (addr->sa_family == AF_INET) {
5230
5231                                         struct sockaddr_in *sin;
5232
5233                                         sin = (struct sockaddr_in *)addr;
5234                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5235                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5236                                                 SCTP_TCB_UNLOCK(stcb);
5237                                                 error = EINVAL;
5238                                                 break;
5239                                         }
5240                                 } else
5241 #endif
5242 #ifdef INET6
5243                                 if (addr->sa_family == AF_INET6) {
5244                                         struct sockaddr_in6 *sin6;
5245
5246                                         sin6 = (struct sockaddr_in6 *)addr;
5247                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5248                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5249                                                 SCTP_TCB_UNLOCK(stcb);
5250                                                 error = EINVAL;
5251                                                 break;
5252                                         }
5253                                 } else
5254 #endif
5255                                 {
5256                                         error = EAFNOSUPPORT;
5257                                         SCTP_TCB_UNLOCK(stcb);
5258                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5259                                         break;
5260                                 }
5261                         }
5262                         /* sanity checks */
5263                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5264                                 if (stcb)
5265                                         SCTP_TCB_UNLOCK(stcb);
5266                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5267                                 return (EINVAL);
5268                         }
5269                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5270                                 if (stcb)
5271                                         SCTP_TCB_UNLOCK(stcb);
5272                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5273                                 return (EINVAL);
5274                         }
5275                         if (stcb != NULL) {
5276                                 /************************TCB SPECIFIC SET ******************/
5277                                 if (net != NULL) {
5278                                         /************************NET SPECIFIC SET ******************/
5279                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5280                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5281                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5282                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5283                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5284                                                 }
5285                                                 net->dest_state |= SCTP_ADDR_NOHB;
5286                                         }
5287                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5288                                                 if (paddrp->spp_hbinterval) {
5289                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5290                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5291                                                         net->heart_beat_delay = 0;
5292                                                 }
5293                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5294                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5295                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5296                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5297                                         }
5298                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5299                                                 /* on demand HB */
5300                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5301                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5302                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5303                                         }
5304                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5305                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5306                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5307                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5308                                                 }
5309                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5310                                                 net->mtu = paddrp->spp_pathmtu;
5311                                                 switch (net->ro._l_addr.sa.sa_family) {
5312 #ifdef INET
5313                                                 case AF_INET:
5314                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5315                                                         break;
5316 #endif
5317 #ifdef INET6
5318                                                 case AF_INET6:
5319                                                         net->mtu += SCTP_MIN_OVERHEAD;
5320                                                         break;
5321 #endif
5322                                                 default:
5323                                                         break;
5324                                                 }
5325                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5326                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5327                                                 }
5328                                         }
5329                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5330                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5331                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5332                                                 }
5333                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5334                                         }
5335                                         if (paddrp->spp_pathmaxrxt) {
5336                                                 if (net->dest_state & SCTP_ADDR_PF) {
5337                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5338                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5339                                                         }
5340                                                 } else {
5341                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5342                                                             (net->error_count > net->pf_threshold)) {
5343                                                                 net->dest_state |= SCTP_ADDR_PF;
5344                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5345                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5346                                                                     stcb->sctp_ep, stcb, net,
5347                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5348                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5349                                                         }
5350                                                 }
5351                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5352                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5353                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5354                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5355                                                         }
5356                                                 } else {
5357                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5358                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5359                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5360                                                         }
5361                                                 }
5362                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5363                                         }
5364                                         if (paddrp->spp_flags & SPP_DSCP) {
5365                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5366                                                 net->dscp |= 0x01;
5367                                         }
5368 #ifdef INET6
5369                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5370                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5371                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5372                                                         net->flowlabel |= 0x80000000;
5373                                                 }
5374                                         }
5375 #endif
5376                                 } else {
5377                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5378                                         if (paddrp->spp_pathmaxrxt != 0) {
5379                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5380                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5381                                                         if (net->dest_state & SCTP_ADDR_PF) {
5382                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5383                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5384                                                                 }
5385                                                         } else {
5386                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5387                                                                     (net->error_count > net->pf_threshold)) {
5388                                                                         net->dest_state |= SCTP_ADDR_PF;
5389                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5390                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5391                                                                             stcb->sctp_ep, stcb, net,
5392                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5393                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5394                                                                 }
5395                                                         }
5396                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5397                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5398                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5399                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5400                                                                 }
5401                                                         } else {
5402                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5403                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5404                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5405                                                                 }
5406                                                         }
5407                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5408                                                 }
5409                                         }
5410                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5411                                                 if (paddrp->spp_hbinterval != 0) {
5412                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5413                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5414                                                         stcb->asoc.heart_beat_delay = 0;
5415                                                 }
5416                                                 /* Turn back on the timer */
5417                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5418                                                         if (paddrp->spp_hbinterval != 0) {
5419                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5420                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5421                                                                 net->heart_beat_delay = 0;
5422                                                         }
5423                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5424                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5425                                                         }
5426                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5427                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5428                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5429                                                 }
5430                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5431                                         }
5432                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5433                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5434                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5435                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5436                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5437                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5438                                                                             inp, stcb, net,
5439                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5440                                                                 }
5441                                                         }
5442                                                 }
5443                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5444                                         }
5445                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5446                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5447                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5448                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5449                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5450                                                         }
5451                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5452                                                         net->mtu = paddrp->spp_pathmtu;
5453                                                         switch (net->ro._l_addr.sa.sa_family) {
5454 #ifdef INET
5455                                                         case AF_INET:
5456                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5457                                                                 break;
5458 #endif
5459 #ifdef INET6
5460                                                         case AF_INET6:
5461                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5462                                                                 break;
5463 #endif
5464                                                         default:
5465                                                                 break;
5466                                                         }
5467                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5468                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5469                                                         }
5470                                                 }
5471                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5472                                         }
5473                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5474                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5475                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5476                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5477                                                         }
5478                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5479                                                 }
5480                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5481                                         }
5482                                         if (paddrp->spp_flags & SPP_DSCP) {
5483                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5484                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5485                                                         net->dscp |= 0x01;
5486                                                 }
5487                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5488                                                 stcb->asoc.default_dscp |= 0x01;
5489                                         }
5490 #ifdef INET6
5491                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5492                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5493                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5494                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5495                                                                 net->flowlabel |= 0x80000000;
5496                                                         }
5497                                                 }
5498                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5499                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5500                                         }
5501 #endif
5502                                 }
5503                                 SCTP_TCB_UNLOCK(stcb);
5504                         } else {
5505                                 /************************NO TCB, SET TO default stuff ******************/
5506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5508                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5509                                         SCTP_INP_WLOCK(inp);
5510                                         /*
5511                                          * For the TOS/FLOWLABEL stuff you
5512                                          * set it with the options on the
5513                                          * socket
5514                                          */
5515                                         if (paddrp->spp_pathmaxrxt != 0) {
5516                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5517                                         }
5518                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5519                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5520                                         else if (paddrp->spp_hbinterval != 0) {
5521                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5522                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5523                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5524                                         }
5525                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5526                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5527                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5528                                                 } else if (paddrp->spp_hbinterval) {
5529                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5530                                                 }
5531                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5532                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5533                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5534                                         }
5535                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5536                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5537                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5538                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5539                                         }
5540                                         if (paddrp->spp_flags & SPP_DSCP) {
5541                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5542                                                 inp->sctp_ep.default_dscp |= 0x01;
5543                                         }
5544 #ifdef INET6
5545                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5546                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5547                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5548                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5549                                                 }
5550                                         }
5551 #endif
5552                                         SCTP_INP_WUNLOCK(inp);
5553                                 } else {
5554                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5555                                         error = EINVAL;
5556                                 }
5557                         }
5558                         break;
5559                 }
5560         case SCTP_RTOINFO:
5561                 {
5562                         struct sctp_rtoinfo *srto;
5563                         uint32_t new_init, new_min, new_max;
5564
5565                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5566                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5567
5568                         if (stcb) {
5569                                 if (srto->srto_initial)
5570                                         new_init = srto->srto_initial;
5571                                 else
5572                                         new_init = stcb->asoc.initial_rto;
5573                                 if (srto->srto_max)
5574                                         new_max = srto->srto_max;
5575                                 else
5576                                         new_max = stcb->asoc.maxrto;
5577                                 if (srto->srto_min)
5578                                         new_min = srto->srto_min;
5579                                 else
5580                                         new_min = stcb->asoc.minrto;
5581                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5582                                         stcb->asoc.initial_rto = new_init;
5583                                         stcb->asoc.maxrto = new_max;
5584                                         stcb->asoc.minrto = new_min;
5585                                 } else {
5586                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5587                                         error = EINVAL;
5588                                 }
5589                                 SCTP_TCB_UNLOCK(stcb);
5590                         } else {
5591                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5592                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5593                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5594                                         SCTP_INP_WLOCK(inp);
5595                                         if (srto->srto_initial)
5596                                                 new_init = srto->srto_initial;
5597                                         else
5598                                                 new_init = inp->sctp_ep.initial_rto;
5599                                         if (srto->srto_max)
5600                                                 new_max = srto->srto_max;
5601                                         else
5602                                                 new_max = inp->sctp_ep.sctp_maxrto;
5603                                         if (srto->srto_min)
5604                                                 new_min = srto->srto_min;
5605                                         else
5606                                                 new_min = inp->sctp_ep.sctp_minrto;
5607                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5608                                                 inp->sctp_ep.initial_rto = new_init;
5609                                                 inp->sctp_ep.sctp_maxrto = new_max;
5610                                                 inp->sctp_ep.sctp_minrto = new_min;
5611                                         } else {
5612                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5613                                                 error = EINVAL;
5614                                         }
5615                                         SCTP_INP_WUNLOCK(inp);
5616                                 } else {
5617                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5618                                         error = EINVAL;
5619                                 }
5620                         }
5621                         break;
5622                 }
5623         case SCTP_ASSOCINFO:
5624                 {
5625                         struct sctp_assocparams *sasoc;
5626
5627                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5628                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5629                         if (sasoc->sasoc_cookie_life) {
5630                                 /* boundary check the cookie life */
5631                                 if (sasoc->sasoc_cookie_life < 1000)
5632                                         sasoc->sasoc_cookie_life = 1000;
5633                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5634                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5635                                 }
5636                         }
5637                         if (stcb) {
5638                                 if (sasoc->sasoc_asocmaxrxt)
5639                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5640                                 if (sasoc->sasoc_cookie_life) {
5641                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5642                                 }
5643                                 SCTP_TCB_UNLOCK(stcb);
5644                         } else {
5645                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5646                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5647                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5648                                         SCTP_INP_WLOCK(inp);
5649                                         if (sasoc->sasoc_asocmaxrxt)
5650                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5651                                         if (sasoc->sasoc_cookie_life) {
5652                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5653                                         }
5654                                         SCTP_INP_WUNLOCK(inp);
5655                                 } else {
5656                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5657                                         error = EINVAL;
5658                                 }
5659                         }
5660                         break;
5661                 }
5662         case SCTP_INITMSG:
5663                 {
5664                         struct sctp_initmsg *sinit;
5665
5666                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5667                         SCTP_INP_WLOCK(inp);
5668                         if (sinit->sinit_num_ostreams)
5669                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5670
5671                         if (sinit->sinit_max_instreams)
5672                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5673
5674                         if (sinit->sinit_max_attempts)
5675                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5676
5677                         if (sinit->sinit_max_init_timeo)
5678                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5679                         SCTP_INP_WUNLOCK(inp);
5680                         break;
5681                 }
5682         case SCTP_PRIMARY_ADDR:
5683                 {
5684                         struct sctp_setprim *spa;
5685                         struct sctp_nets *net;
5686                         struct sockaddr *addr;
5687 #if defined(INET) && defined(INET6)
5688                         struct sockaddr_in sin_store;
5689 #endif
5690
5691                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5692                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5693
5694 #if defined(INET) && defined(INET6)
5695                         if (spa->ssp_addr.ss_family == AF_INET6) {
5696                                 struct sockaddr_in6 *sin6;
5697
5698                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5699                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5700                                         in6_sin6_2_sin(&sin_store, sin6);
5701                                         addr = (struct sockaddr *)&sin_store;
5702                                 } else {
5703                                         addr = (struct sockaddr *)&spa->ssp_addr;
5704                                 }
5705                         } else {
5706                                 addr = (struct sockaddr *)&spa->ssp_addr;
5707                         }
5708 #else
5709                         addr = (struct sockaddr *)&spa->ssp_addr;
5710 #endif
5711                         if (stcb != NULL) {
5712                                 net = sctp_findnet(stcb, addr);
5713                         } else {
5714                                 /*
5715                                  * We increment here since
5716                                  * sctp_findassociation_ep_addr() wil do a
5717                                  * decrement if it finds the stcb as long as
5718                                  * the locked tcb (last argument) is NOT a
5719                                  * TCB.. aka NULL.
5720                                  */
5721                                 net = NULL;
5722                                 SCTP_INP_INCR_REF(inp);
5723                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5724                                     &net, NULL, NULL);
5725                                 if (stcb == NULL) {
5726                                         SCTP_INP_DECR_REF(inp);
5727                                 }
5728                         }
5729
5730                         if ((stcb != NULL) && (net != NULL)) {
5731                                 if (net != stcb->asoc.primary_destination) {
5732                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5733                                                 /* Ok we need to set it */
5734                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5735                                                         if ((stcb->asoc.alternate) &&
5736                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5737                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5738                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5739                                                                 stcb->asoc.alternate = NULL;
5740                                                         }
5741                                                 } else {
5742                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5743                                                         error = EINVAL;
5744                                                 }
5745                                         } else {
5746                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5747                                                 error = EINVAL;
5748                                         }
5749                                 }
5750                         } else {
5751                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5752                                 error = EINVAL;
5753                         }
5754                         if (stcb != NULL) {
5755                                 SCTP_TCB_UNLOCK(stcb);
5756                         }
5757                         break;
5758                 }
5759         case SCTP_SET_DYNAMIC_PRIMARY:
5760                 {
5761                         union sctp_sockstore *ss;
5762
5763                         error = priv_check(curthread,
5764                             PRIV_NETINET_RESERVEDPORT);
5765                         if (error)
5766                                 break;
5767
5768                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5769                         /* SUPER USER CHECK? */
5770                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5771                         break;
5772                 }
5773         case SCTP_SET_PEER_PRIMARY_ADDR:
5774                 {
5775                         struct sctp_setpeerprim *sspp;
5776                         struct sockaddr *addr;
5777 #if defined(INET) && defined(INET6)
5778                         struct sockaddr_in sin_store;
5779 #endif
5780
5781                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5782                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5783                         if (stcb != NULL) {
5784                                 struct sctp_ifa *ifa;
5785
5786 #if defined(INET) && defined(INET6)
5787                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5788                                         struct sockaddr_in6 *sin6;
5789
5790                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5791                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5792                                                 in6_sin6_2_sin(&sin_store, sin6);
5793                                                 addr = (struct sockaddr *)&sin_store;
5794                                         } else {
5795                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5796                                         }
5797                                 } else {
5798                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5799                                 }
5800 #else
5801                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5802 #endif
5803                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5804                                 if (ifa == NULL) {
5805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5806                                         error = EINVAL;
5807                                         goto out_of_it;
5808                                 }
5809                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5810                                         /*
5811                                          * Must validate the ifa found is in
5812                                          * our ep
5813                                          */
5814                                         struct sctp_laddr *laddr;
5815                                         int found = 0;
5816
5817                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5818                                                 if (laddr->ifa == NULL) {
5819                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5820                                                             __func__);
5821                                                         continue;
5822                                                 }
5823                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5824                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5825                                                         continue;
5826                                                 }
5827                                                 if (laddr->ifa == ifa) {
5828                                                         found = 1;
5829                                                         break;
5830                                                 }
5831                                         }
5832                                         if (!found) {
5833                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5834                                                 error = EINVAL;
5835                                                 goto out_of_it;
5836                                         }
5837                                 } else {
5838                                         switch (addr->sa_family) {
5839 #ifdef INET
5840                                         case AF_INET:
5841                                                 {
5842                                                         struct sockaddr_in *sin;
5843
5844                                                         sin = (struct sockaddr_in *)addr;
5845                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5846                                                             &sin->sin_addr) != 0) {
5847                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5848                                                                 error = EINVAL;
5849                                                                 goto out_of_it;
5850                                                         }
5851                                                         break;
5852                                                 }
5853 #endif
5854 #ifdef INET6
5855                                         case AF_INET6:
5856                                                 {
5857                                                         struct sockaddr_in6 *sin6;
5858
5859                                                         sin6 = (struct sockaddr_in6 *)addr;
5860                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5861                                                             &sin6->sin6_addr) != 0) {
5862                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5863                                                                 error = EINVAL;
5864                                                                 goto out_of_it;
5865                                                         }
5866                                                         break;
5867                                                 }
5868 #endif
5869                                         default:
5870                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5871                                                 error = EINVAL;
5872                                                 goto out_of_it;
5873                                         }
5874                                 }
5875                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5876                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5877                                         error = EINVAL;
5878                                 }
5879                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5880                 out_of_it:
5881                                 SCTP_TCB_UNLOCK(stcb);
5882                         } else {
5883                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5884                                 error = EINVAL;
5885                         }
5886                         break;
5887                 }
5888         case SCTP_BINDX_ADD_ADDR:
5889                 {
5890                         struct sctp_getaddresses *addrs;
5891                         struct thread *td;
5892
5893                         td = (struct thread *)p;
5894                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5895                             optsize);
5896 #ifdef INET
5897                         if (addrs->addr->sa_family == AF_INET) {
5898                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5899                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5900                                         error = EINVAL;
5901                                         break;
5902                                 }
5903                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5904                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5905                                         break;
5906                                 }
5907                         } else
5908 #endif
5909 #ifdef INET6
5910                         if (addrs->addr->sa_family == AF_INET6) {
5911                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5912                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5913                                         error = EINVAL;
5914                                         break;
5915                                 }
5916                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5917                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5918                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5919                                         break;
5920                                 }
5921                         } else
5922 #endif
5923                         {
5924                                 error = EAFNOSUPPORT;
5925                                 break;
5926                         }
5927                         sctp_bindx_add_address(so, inp, addrs->addr,
5928                             addrs->sget_assoc_id, vrf_id,
5929                             &error, p);
5930                         break;
5931                 }
5932         case SCTP_BINDX_REM_ADDR:
5933                 {
5934                         struct sctp_getaddresses *addrs;
5935                         struct thread *td;
5936
5937                         td = (struct thread *)p;
5938
5939                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5940 #ifdef INET
5941                         if (addrs->addr->sa_family == AF_INET) {
5942                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5943                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5944                                         error = EINVAL;
5945                                         break;
5946                                 }
5947                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5948                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5949                                         break;
5950                                 }
5951                         } else
5952 #endif
5953 #ifdef INET6
5954                         if (addrs->addr->sa_family == AF_INET6) {
5955                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5956                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5957                                         error = EINVAL;
5958                                         break;
5959                                 }
5960                                 if (td != NULL &&
5961                                     (error = prison_local_ip6(td->td_ucred,
5962                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5963                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5964                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5965                                         break;
5966                                 }
5967                         } else
5968 #endif
5969                         {
5970                                 error = EAFNOSUPPORT;
5971                                 break;
5972                         }
5973                         sctp_bindx_delete_address(inp, addrs->addr,
5974                             addrs->sget_assoc_id, vrf_id,
5975                             &error);
5976                         break;
5977                 }
5978         case SCTP_EVENT:
5979                 {
5980                         struct sctp_event *event;
5981                         uint32_t event_type;
5982
5983                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5984                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5985                         switch (event->se_type) {
5986                         case SCTP_ASSOC_CHANGE:
5987                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5988                                 break;
5989                         case SCTP_PEER_ADDR_CHANGE:
5990                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5991                                 break;
5992                         case SCTP_REMOTE_ERROR:
5993                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5994                                 break;
5995                         case SCTP_SEND_FAILED:
5996                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5997                                 break;
5998                         case SCTP_SHUTDOWN_EVENT:
5999                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6000                                 break;
6001                         case SCTP_ADAPTATION_INDICATION:
6002                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6003                                 break;
6004                         case SCTP_PARTIAL_DELIVERY_EVENT:
6005                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6006                                 break;
6007                         case SCTP_AUTHENTICATION_EVENT:
6008                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6009                                 break;
6010                         case SCTP_STREAM_RESET_EVENT:
6011                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6012                                 break;
6013                         case SCTP_SENDER_DRY_EVENT:
6014                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6015                                 break;
6016                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6017                                 event_type = 0;
6018                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6019                                 error = ENOTSUP;
6020                                 break;
6021                         case SCTP_ASSOC_RESET_EVENT:
6022                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6023                                 break;
6024                         case SCTP_STREAM_CHANGE_EVENT:
6025                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6026                                 break;
6027                         case SCTP_SEND_FAILED_EVENT:
6028                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6029                                 break;
6030                         default:
6031                                 event_type = 0;
6032                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6033                                 error = EINVAL;
6034                                 break;
6035                         }
6036                         if (event_type > 0) {
6037                                 if (stcb) {
6038                                         if (event->se_on) {
6039                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6040                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6041                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6042                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6043                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6044                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6045                                                         }
6046                                                 }
6047                                         } else {
6048                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6049                                         }
6050                                         SCTP_TCB_UNLOCK(stcb);
6051                                 } else {
6052                                         /*
6053                                          * We don't want to send up a storm
6054                                          * of events, so return an error for
6055                                          * sender dry events
6056                                          */
6057                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6058                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6059                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6060                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6061                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6062                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6063                                                 error = ENOTSUP;
6064                                                 break;
6065                                         }
6066                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6067                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6068                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6069                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6070                                                 SCTP_INP_WLOCK(inp);
6071                                                 if (event->se_on) {
6072                                                         sctp_feature_on(inp, event_type);
6073                                                 } else {
6074                                                         sctp_feature_off(inp, event_type);
6075                                                 }
6076                                                 SCTP_INP_WUNLOCK(inp);
6077                                         }
6078                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6079                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6080                                                 SCTP_INP_RLOCK(inp);
6081                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6082                                                         SCTP_TCB_LOCK(stcb);
6083                                                         if (event->se_on) {
6084                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6085                                                         } else {
6086                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6087                                                         }
6088                                                         SCTP_TCB_UNLOCK(stcb);
6089                                                 }
6090                                                 SCTP_INP_RUNLOCK(inp);
6091                                         }
6092                                 }
6093                         }
6094                         break;
6095                 }
6096         case SCTP_RECVRCVINFO:
6097                 {
6098                         int *onoff;
6099
6100                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6101                         SCTP_INP_WLOCK(inp);
6102                         if (*onoff != 0) {
6103                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6104                         } else {
6105                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6106                         }
6107                         SCTP_INP_WUNLOCK(inp);
6108                         break;
6109                 }
6110         case SCTP_RECVNXTINFO:
6111                 {
6112                         int *onoff;
6113
6114                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6115                         SCTP_INP_WLOCK(inp);
6116                         if (*onoff != 0) {
6117                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6118                         } else {
6119                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6120                         }
6121                         SCTP_INP_WUNLOCK(inp);
6122                         break;
6123                 }
6124         case SCTP_DEFAULT_SNDINFO:
6125                 {
6126                         struct sctp_sndinfo *info;
6127                         uint16_t policy;
6128
6129                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6130                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6131
6132                         if (stcb) {
6133                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6134                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6135                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6136                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6137                                         stcb->asoc.def_send.sinfo_flags |= policy;
6138                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6139                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6140                                 } else {
6141                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6142                                         error = EINVAL;
6143                                 }
6144                                 SCTP_TCB_UNLOCK(stcb);
6145                         } else {
6146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6148                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6149                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6150                                         SCTP_INP_WLOCK(inp);
6151                                         inp->def_send.sinfo_stream = info->snd_sid;
6152                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6153                                         inp->def_send.sinfo_flags = info->snd_flags;
6154                                         inp->def_send.sinfo_flags |= policy;
6155                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6156                                         inp->def_send.sinfo_context = info->snd_context;
6157                                         SCTP_INP_WUNLOCK(inp);
6158                                 }
6159                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6160                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6161                                         SCTP_INP_RLOCK(inp);
6162                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6163                                                 SCTP_TCB_LOCK(stcb);
6164                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6165                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6166                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6167                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6168                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6169                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6170                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6171                                                 }
6172                                                 SCTP_TCB_UNLOCK(stcb);
6173                                         }
6174                                         SCTP_INP_RUNLOCK(inp);
6175                                 }
6176                         }
6177                         break;
6178                 }
6179         case SCTP_DEFAULT_PRINFO:
6180                 {
6181                         struct sctp_default_prinfo *info;
6182
6183                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6184                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6185
6186                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6187                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6188                                 error = EINVAL;
6189                                 break;
6190                         }
6191                         if (stcb) {
6192                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6193                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6194                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6195                                 SCTP_TCB_UNLOCK(stcb);
6196                         } else {
6197                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6198                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6199                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6200                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6201                                         SCTP_INP_WLOCK(inp);
6202                                         inp->def_send.sinfo_flags &= 0xfff0;
6203                                         inp->def_send.sinfo_flags |= info->pr_policy;
6204                                         inp->def_send.sinfo_timetolive = info->pr_value;
6205                                         SCTP_INP_WUNLOCK(inp);
6206                                 }
6207                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6208                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6209                                         SCTP_INP_RLOCK(inp);
6210                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6211                                                 SCTP_TCB_LOCK(stcb);
6212                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6213                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6214                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6215                                                 SCTP_TCB_UNLOCK(stcb);
6216                                         }
6217                                         SCTP_INP_RUNLOCK(inp);
6218                                 }
6219                         }
6220                         break;
6221                 }
6222         case SCTP_PEER_ADDR_THLDS:
6223                 /* Applies to the specific association */
6224                 {
6225                         struct sctp_paddrthlds *thlds;
6226                         struct sctp_nets *net;
6227                         struct sockaddr *addr;
6228 #if defined(INET) && defined(INET6)
6229                         struct sockaddr_in sin_store;
6230 #endif
6231
6232                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6233                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6234
6235 #if defined(INET) && defined(INET6)
6236                         if (thlds->spt_address.ss_family == AF_INET6) {
6237                                 struct sockaddr_in6 *sin6;
6238
6239                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6240                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6241                                         in6_sin6_2_sin(&sin_store, sin6);
6242                                         addr = (struct sockaddr *)&sin_store;
6243                                 } else {
6244                                         addr = (struct sockaddr *)&thlds->spt_address;
6245                                 }
6246                         } else {
6247                                 addr = (struct sockaddr *)&thlds->spt_address;
6248                         }
6249 #else
6250                         addr = (struct sockaddr *)&thlds->spt_address;
6251 #endif
6252                         if (stcb != NULL) {
6253                                 net = sctp_findnet(stcb, addr);
6254                         } else {
6255                                 /*
6256                                  * We increment here since
6257                                  * sctp_findassociation_ep_addr() wil do a
6258                                  * decrement if it finds the stcb as long as
6259                                  * the locked tcb (last argument) is NOT a
6260                                  * TCB.. aka NULL.
6261                                  */
6262                                 net = NULL;
6263                                 SCTP_INP_INCR_REF(inp);
6264                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6265                                     &net, NULL, NULL);
6266                                 if (stcb == NULL) {
6267                                         SCTP_INP_DECR_REF(inp);
6268                                 }
6269                         }
6270                         if ((stcb != NULL) && (net == NULL)) {
6271 #ifdef INET
6272                                 if (addr->sa_family == AF_INET) {
6273
6274                                         struct sockaddr_in *sin;
6275
6276                                         sin = (struct sockaddr_in *)addr;
6277                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6278                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6279                                                 SCTP_TCB_UNLOCK(stcb);
6280                                                 error = EINVAL;
6281                                                 break;
6282                                         }
6283                                 } else
6284 #endif
6285 #ifdef INET6
6286                                 if (addr->sa_family == AF_INET6) {
6287                                         struct sockaddr_in6 *sin6;
6288
6289                                         sin6 = (struct sockaddr_in6 *)addr;
6290                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6291                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6292                                                 SCTP_TCB_UNLOCK(stcb);
6293                                                 error = EINVAL;
6294                                                 break;
6295                                         }
6296                                 } else
6297 #endif
6298                                 {
6299                                         error = EAFNOSUPPORT;
6300                                         SCTP_TCB_UNLOCK(stcb);
6301                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6302                                         break;
6303                                 }
6304                         }
6305                         if (thlds->spt_pathcpthld != 0xffff) {
6306                                 error = EINVAL;
6307                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6308                                 break;
6309                         }
6310                         if (stcb != NULL) {
6311                                 if (net != NULL) {
6312                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6313                                         net->pf_threshold = thlds->spt_pathpfthld;
6314                                         if (net->dest_state & SCTP_ADDR_PF) {
6315                                                 if ((net->error_count > net->failure_threshold) ||
6316                                                     (net->error_count <= net->pf_threshold)) {
6317                                                         net->dest_state &= ~SCTP_ADDR_PF;
6318                                                 }
6319                                         } else {
6320                                                 if ((net->error_count > net->pf_threshold) &&
6321                                                     (net->error_count <= net->failure_threshold)) {
6322                                                         net->dest_state |= SCTP_ADDR_PF;
6323                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6324                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6325                                                             stcb->sctp_ep, stcb, net,
6326                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6327                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6328                                                 }
6329                                         }
6330                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6331                                                 if (net->error_count > net->failure_threshold) {
6332                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6333                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6334                                                 }
6335                                         } else {
6336                                                 if (net->error_count <= net->failure_threshold) {
6337                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6338                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6339                                                 }
6340                                         }
6341                                 } else {
6342                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6343                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6344                                                 net->pf_threshold = thlds->spt_pathpfthld;
6345                                                 if (net->dest_state & SCTP_ADDR_PF) {
6346                                                         if ((net->error_count > net->failure_threshold) ||
6347                                                             (net->error_count <= net->pf_threshold)) {
6348                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6349                                                         }
6350                                                 } else {
6351                                                         if ((net->error_count > net->pf_threshold) &&
6352                                                             (net->error_count <= net->failure_threshold)) {
6353                                                                 net->dest_state |= SCTP_ADDR_PF;
6354                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6355                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6356                                                                     stcb->sctp_ep, stcb, net,
6357                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6358                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6359                                                         }
6360                                                 }
6361                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6362                                                         if (net->error_count > net->failure_threshold) {
6363                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6364                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6365                                                         }
6366                                                 } else {
6367                                                         if (net->error_count <= net->failure_threshold) {
6368                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6369                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6370                                                         }
6371                                                 }
6372                                         }
6373                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6374                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6375                                 }
6376                                 SCTP_TCB_UNLOCK(stcb);
6377                         } else {
6378                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6379                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6380                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6381                                         SCTP_INP_WLOCK(inp);
6382                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6383                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6384                                         SCTP_INP_WUNLOCK(inp);
6385                                 } else {
6386                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6387                                         error = EINVAL;
6388                                 }
6389                         }
6390                         break;
6391                 }
6392         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6393                 {
6394                         struct sctp_udpencaps *encaps;
6395                         struct sctp_nets *net;
6396                         struct sockaddr *addr;
6397 #if defined(INET) && defined(INET6)
6398                         struct sockaddr_in sin_store;
6399 #endif
6400
6401                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6402                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6403
6404 #if defined(INET) && defined(INET6)
6405                         if (encaps->sue_address.ss_family == AF_INET6) {
6406                                 struct sockaddr_in6 *sin6;
6407
6408                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6409                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6410                                         in6_sin6_2_sin(&sin_store, sin6);
6411                                         addr = (struct sockaddr *)&sin_store;
6412                                 } else {
6413                                         addr = (struct sockaddr *)&encaps->sue_address;
6414                                 }
6415                         } else {
6416                                 addr = (struct sockaddr *)&encaps->sue_address;
6417                         }
6418 #else
6419                         addr = (struct sockaddr *)&encaps->sue_address;
6420 #endif
6421                         if (stcb != NULL) {
6422                                 net = sctp_findnet(stcb, addr);
6423                         } else {
6424                                 /*
6425                                  * We increment here since
6426                                  * sctp_findassociation_ep_addr() wil do a
6427                                  * decrement if it finds the stcb as long as
6428                                  * the locked tcb (last argument) is NOT a
6429                                  * TCB.. aka NULL.
6430                                  */
6431                                 net = NULL;
6432                                 SCTP_INP_INCR_REF(inp);
6433                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6434                                 if (stcb == NULL) {
6435                                         SCTP_INP_DECR_REF(inp);
6436                                 }
6437                         }
6438                         if ((stcb != NULL) && (net == NULL)) {
6439 #ifdef INET
6440                                 if (addr->sa_family == AF_INET) {
6441
6442                                         struct sockaddr_in *sin;
6443
6444                                         sin = (struct sockaddr_in *)addr;
6445                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6446                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6447                                                 SCTP_TCB_UNLOCK(stcb);
6448                                                 error = EINVAL;
6449                                                 break;
6450                                         }
6451                                 } else
6452 #endif
6453 #ifdef INET6
6454                                 if (addr->sa_family == AF_INET6) {
6455                                         struct sockaddr_in6 *sin6;
6456
6457                                         sin6 = (struct sockaddr_in6 *)addr;
6458                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6459                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6460                                                 SCTP_TCB_UNLOCK(stcb);
6461                                                 error = EINVAL;
6462                                                 break;
6463                                         }
6464                                 } else
6465 #endif
6466                                 {
6467                                         error = EAFNOSUPPORT;
6468                                         SCTP_TCB_UNLOCK(stcb);
6469                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6470                                         break;
6471                                 }
6472                         }
6473                         if (stcb != NULL) {
6474                                 if (net != NULL) {
6475                                         net->port = encaps->sue_port;
6476                                 } else {
6477                                         stcb->asoc.port = encaps->sue_port;
6478                                 }
6479                                 SCTP_TCB_UNLOCK(stcb);
6480                         } else {
6481                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6482                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6483                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6484                                         SCTP_INP_WLOCK(inp);
6485                                         inp->sctp_ep.port = encaps->sue_port;
6486                                         SCTP_INP_WUNLOCK(inp);
6487                                 } else {
6488                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6489                                         error = EINVAL;
6490                                 }
6491                         }
6492                         break;
6493                 }
6494         case SCTP_ECN_SUPPORTED:
6495                 {
6496                         struct sctp_assoc_value *av;
6497
6498                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6499                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6500
6501                         if (stcb) {
6502                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6503                                 error = EINVAL;
6504                                 SCTP_TCB_UNLOCK(stcb);
6505                         } else {
6506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6508                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6509                                         SCTP_INP_WLOCK(inp);
6510                                         if (av->assoc_value == 0) {
6511                                                 inp->ecn_supported = 0;
6512                                         } else {
6513                                                 inp->ecn_supported = 1;
6514                                         }
6515                                         SCTP_INP_WUNLOCK(inp);
6516                                 } else {
6517                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6518                                         error = EINVAL;
6519                                 }
6520                         }
6521                         break;
6522                 }
6523         case SCTP_PR_SUPPORTED:
6524                 {
6525                         struct sctp_assoc_value *av;
6526
6527                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6528                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6529
6530                         if (stcb) {
6531                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6532                                 error = EINVAL;
6533                                 SCTP_TCB_UNLOCK(stcb);
6534                         } else {
6535                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6536                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6537                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6538                                         SCTP_INP_WLOCK(inp);
6539                                         if (av->assoc_value == 0) {
6540                                                 inp->prsctp_supported = 0;
6541                                         } else {
6542                                                 inp->prsctp_supported = 1;
6543                                         }
6544                                         SCTP_INP_WUNLOCK(inp);
6545                                 } else {
6546                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6547                                         error = EINVAL;
6548                                 }
6549                         }
6550                         break;
6551                 }
6552         case SCTP_AUTH_SUPPORTED:
6553                 {
6554                         struct sctp_assoc_value *av;
6555
6556                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6557                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6558
6559                         if (stcb) {
6560                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6561                                 error = EINVAL;
6562                                 SCTP_TCB_UNLOCK(stcb);
6563                         } else {
6564                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6565                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6566                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6567                                         if ((av->assoc_value == 0) &&
6568                                             (inp->asconf_supported == 1)) {
6569                                                 /*
6570                                                  * AUTH is required for
6571                                                  * ASCONF
6572                                                  */
6573                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6574                                                 error = EINVAL;
6575                                         } else {
6576                                                 SCTP_INP_WLOCK(inp);
6577                                                 if (av->assoc_value == 0) {
6578                                                         inp->auth_supported = 0;
6579                                                 } else {
6580                                                         inp->auth_supported = 1;
6581                                                 }
6582                                                 SCTP_INP_WUNLOCK(inp);
6583                                         }
6584                                 } else {
6585                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6586                                         error = EINVAL;
6587                                 }
6588                         }
6589                         break;
6590                 }
6591         case SCTP_ASCONF_SUPPORTED:
6592                 {
6593                         struct sctp_assoc_value *av;
6594
6595                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6596                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6597
6598                         if (stcb) {
6599                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6600                                 error = EINVAL;
6601                                 SCTP_TCB_UNLOCK(stcb);
6602                         } else {
6603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6604                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6605                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6606                                         if ((av->assoc_value != 0) &&
6607                                             (inp->auth_supported == 0)) {
6608                                                 /*
6609                                                  * AUTH is required for
6610                                                  * ASCONF
6611                                                  */
6612                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6613                                                 error = EINVAL;
6614                                         } else {
6615                                                 SCTP_INP_WLOCK(inp);
6616                                                 if (av->assoc_value == 0) {
6617                                                         inp->asconf_supported = 0;
6618                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6619                                                             inp->sctp_ep.local_auth_chunks);
6620                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6621                                                             inp->sctp_ep.local_auth_chunks);
6622                                                 } else {
6623                                                         inp->asconf_supported = 1;
6624                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6625                                                             inp->sctp_ep.local_auth_chunks);
6626                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6627                                                             inp->sctp_ep.local_auth_chunks);
6628                                                 }
6629                                                 SCTP_INP_WUNLOCK(inp);
6630                                         }
6631                                 } else {
6632                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6633                                         error = EINVAL;
6634                                 }
6635                         }
6636                         break;
6637                 }
6638         case SCTP_RECONFIG_SUPPORTED:
6639                 {
6640                         struct sctp_assoc_value *av;
6641
6642                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6643                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6644
6645                         if (stcb) {
6646                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6647                                 error = EINVAL;
6648                                 SCTP_TCB_UNLOCK(stcb);
6649                         } else {
6650                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6651                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6652                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6653                                         SCTP_INP_WLOCK(inp);
6654                                         if (av->assoc_value == 0) {
6655                                                 inp->reconfig_supported = 0;
6656                                         } else {
6657                                                 inp->reconfig_supported = 1;
6658                                         }
6659                                         SCTP_INP_WUNLOCK(inp);
6660                                 } else {
6661                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6662                                         error = EINVAL;
6663                                 }
6664                         }
6665                         break;
6666                 }
6667         case SCTP_NRSACK_SUPPORTED:
6668                 {
6669                         struct sctp_assoc_value *av;
6670
6671                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6672                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6673
6674                         if (stcb) {
6675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6676                                 error = EINVAL;
6677                                 SCTP_TCB_UNLOCK(stcb);
6678                         } else {
6679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6681                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6682                                         SCTP_INP_WLOCK(inp);
6683                                         if (av->assoc_value == 0) {
6684                                                 inp->nrsack_supported = 0;
6685                                         } else {
6686                                                 inp->nrsack_supported = 1;
6687                                         }
6688                                         SCTP_INP_WUNLOCK(inp);
6689                                 } else {
6690                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6691                                         error = EINVAL;
6692                                 }
6693                         }
6694                         break;
6695                 }
6696         case SCTP_PKTDROP_SUPPORTED:
6697                 {
6698                         struct sctp_assoc_value *av;
6699
6700                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6701                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6702
6703                         if (stcb) {
6704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6705                                 error = EINVAL;
6706                                 SCTP_TCB_UNLOCK(stcb);
6707                         } else {
6708                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6709                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6710                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6711                                         SCTP_INP_WLOCK(inp);
6712                                         if (av->assoc_value == 0) {
6713                                                 inp->pktdrop_supported = 0;
6714                                         } else {
6715                                                 inp->pktdrop_supported = 1;
6716                                         }
6717                                         SCTP_INP_WUNLOCK(inp);
6718                                 } else {
6719                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6720                                         error = EINVAL;
6721                                 }
6722                         }
6723                         break;
6724                 }
6725         case SCTP_MAX_CWND:
6726                 {
6727                         struct sctp_assoc_value *av;
6728                         struct sctp_nets *net;
6729
6730                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6731                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6732
6733                         if (stcb) {
6734                                 stcb->asoc.max_cwnd = av->assoc_value;
6735                                 if (stcb->asoc.max_cwnd > 0) {
6736                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6737                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6738                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6739                                                         net->cwnd = stcb->asoc.max_cwnd;
6740                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6741                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6742                                                         }
6743                                                 }
6744                                         }
6745                                 }
6746                                 SCTP_TCB_UNLOCK(stcb);
6747                         } else {
6748                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6749                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6750                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6751                                         SCTP_INP_WLOCK(inp);
6752                                         inp->max_cwnd = av->assoc_value;
6753                                         SCTP_INP_WUNLOCK(inp);
6754                                 } else {
6755                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6756                                         error = EINVAL;
6757                                 }
6758                         }
6759                         break;
6760                 }
6761         default:
6762                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6763                 error = ENOPROTOOPT;
6764                 break;
6765         }                       /* end switch (opt) */
6766         return (error);
6767 }
6768
6769 int
6770 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6771 {
6772         void *optval = NULL;
6773         size_t optsize = 0;
6774         void *p;
6775         int error = 0;
6776         struct sctp_inpcb *inp;
6777
6778         if ((sopt->sopt_level == SOL_SOCKET) &&
6779             (sopt->sopt_name == SO_SETFIB)) {
6780                 inp = (struct sctp_inpcb *)so->so_pcb;
6781                 if (inp == NULL) {
6782                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6783                         return (EINVAL);
6784                 }
6785                 SCTP_INP_WLOCK(inp);
6786                 inp->fibnum = so->so_fibnum;
6787                 SCTP_INP_WUNLOCK(inp);
6788                 return (0);
6789         }
6790         if (sopt->sopt_level != IPPROTO_SCTP) {
6791                 /* wrong proto level... send back up to IP */
6792 #ifdef INET6
6793                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6794                         error = ip6_ctloutput(so, sopt);
6795 #endif                          /* INET6 */
6796 #if defined(INET) && defined(INET6)
6797                 else
6798 #endif
6799 #ifdef INET
6800                         error = ip_ctloutput(so, sopt);
6801 #endif
6802                 return (error);
6803         }
6804         optsize = sopt->sopt_valsize;
6805         if (optsize) {
6806                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6807                 if (optval == NULL) {
6808                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6809                         return (ENOBUFS);
6810                 }
6811                 error = sooptcopyin(sopt, optval, optsize, optsize);
6812                 if (error) {
6813                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6814                         goto out;
6815                 }
6816         }
6817         p = (void *)sopt->sopt_td;
6818         if (sopt->sopt_dir == SOPT_SET) {
6819                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6820         } else if (sopt->sopt_dir == SOPT_GET) {
6821                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6822         } else {
6823                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6824                 error = EINVAL;
6825         }
6826         if ((error == 0) && (optval != NULL)) {
6827                 error = sooptcopyout(sopt, optval, optsize);
6828                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6829         } else if (optval != NULL) {
6830                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6831         }
6832 out:
6833         return (error);
6834 }
6835
6836 #ifdef INET
6837 static int
6838 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6839 {
6840         int error = 0;
6841         int create_lock_on = 0;
6842         uint32_t vrf_id;
6843         struct sctp_inpcb *inp;
6844         struct sctp_tcb *stcb = NULL;
6845
6846         inp = (struct sctp_inpcb *)so->so_pcb;
6847         if (inp == NULL) {
6848                 /* I made the same as TCP since we are not setup? */
6849                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6850                 return (ECONNRESET);
6851         }
6852         if (addr == NULL) {
6853                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6854                 return EINVAL;
6855         }
6856         switch (addr->sa_family) {
6857 #ifdef INET6
6858         case AF_INET6:
6859                 {
6860                         struct sockaddr_in6 *sin6p;
6861
6862                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6864                                 return (EINVAL);
6865                         }
6866                         sin6p = (struct sockaddr_in6 *)addr;
6867                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6868                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6869                                 return (error);
6870                         }
6871                         break;
6872                 }
6873 #endif
6874 #ifdef INET
6875         case AF_INET:
6876                 {
6877                         struct sockaddr_in *sinp;
6878
6879                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6880                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6881                                 return (EINVAL);
6882                         }
6883                         sinp = (struct sockaddr_in *)addr;
6884                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6886                                 return (error);
6887                         }
6888                         break;
6889                 }
6890 #endif
6891         default:
6892                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6893                 return (EAFNOSUPPORT);
6894         }
6895         SCTP_INP_INCR_REF(inp);
6896         SCTP_ASOC_CREATE_LOCK(inp);
6897         create_lock_on = 1;
6898
6899
6900         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6901             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6902                 /* Should I really unlock ? */
6903                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6904                 error = EFAULT;
6905                 goto out_now;
6906         }
6907 #ifdef INET6
6908         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6909             (addr->sa_family == AF_INET6)) {
6910                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6911                 error = EINVAL;
6912                 goto out_now;
6913         }
6914 #endif
6915         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6916             SCTP_PCB_FLAGS_UNBOUND) {
6917                 /* Bind a ephemeral port */
6918                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6919                 if (error) {
6920                         goto out_now;
6921                 }
6922         }
6923         /* Now do we connect? */
6924         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6925             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6926                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6927                 error = EINVAL;
6928                 goto out_now;
6929         }
6930         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6931             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6932                 /* We are already connected AND the TCP model */
6933                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6934                 error = EADDRINUSE;
6935                 goto out_now;
6936         }
6937         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6938                 SCTP_INP_RLOCK(inp);
6939                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6940                 SCTP_INP_RUNLOCK(inp);
6941         } else {
6942                 /*
6943                  * We increment here since sctp_findassociation_ep_addr()
6944                  * will do a decrement if it finds the stcb as long as the
6945                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6946                  */
6947                 SCTP_INP_INCR_REF(inp);
6948                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6949                 if (stcb == NULL) {
6950                         SCTP_INP_DECR_REF(inp);
6951                 } else {
6952                         SCTP_TCB_UNLOCK(stcb);
6953                 }
6954         }
6955         if (stcb != NULL) {
6956                 /* Already have or am bring up an association */
6957                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6958                 error = EALREADY;
6959                 goto out_now;
6960         }
6961         vrf_id = inp->def_vrf_id;
6962         /* We are GOOD to go */
6963         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
6964             inp->sctp_ep.pre_open_stream_count,
6965             inp->sctp_ep.port, p);
6966         if (stcb == NULL) {
6967                 /* Gak! no memory */
6968                 goto out_now;
6969         }
6970         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6971                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6972                 /* Set the connected flag so we can queue data */
6973                 soisconnecting(so);
6974         }
6975         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6976         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6977
6978         /* initialize authentication parameters for the assoc */
6979         sctp_initialize_auth_params(inp, stcb);
6980
6981         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6982         SCTP_TCB_UNLOCK(stcb);
6983 out_now:
6984         if (create_lock_on) {
6985                 SCTP_ASOC_CREATE_UNLOCK(inp);
6986         }
6987         SCTP_INP_DECR_REF(inp);
6988         return (error);
6989 }
6990 #endif
6991
6992 int
6993 sctp_listen(struct socket *so, int backlog, struct thread *p)
6994 {
6995         /*
6996          * Note this module depends on the protocol processing being called
6997          * AFTER any socket level flags and backlog are applied to the
6998          * socket. The traditional way that the socket flags are applied is
6999          * AFTER protocol processing. We have made a change to the
7000          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7001          * place if the socket API for SCTP is to work properly.
7002          */
7003
7004         int error = 0;
7005         struct sctp_inpcb *inp;
7006
7007         inp = (struct sctp_inpcb *)so->so_pcb;
7008         if (inp == NULL) {
7009                 /* I made the same as TCP since we are not setup? */
7010                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7011                 return (ECONNRESET);
7012         }
7013         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7014                 /* See if we have a listener */
7015                 struct sctp_inpcb *tinp;
7016                 union sctp_sockstore store;
7017
7018                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7019                         /* not bound all */
7020                         struct sctp_laddr *laddr;
7021
7022                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7023                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7024                                 switch (store.sa.sa_family) {
7025 #ifdef INET
7026                                 case AF_INET:
7027                                         store.sin.sin_port = inp->sctp_lport;
7028                                         break;
7029 #endif
7030 #ifdef INET6
7031                                 case AF_INET6:
7032                                         store.sin6.sin6_port = inp->sctp_lport;
7033                                         break;
7034 #endif
7035                                 default:
7036                                         break;
7037                                 }
7038                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7039                                 if (tinp && (tinp != inp) &&
7040                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7041                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7042                                     (SCTP_IS_LISTENING(tinp))) {
7043                                         /*
7044                                          * we have a listener already and
7045                                          * its not this inp.
7046                                          */
7047                                         SCTP_INP_DECR_REF(tinp);
7048                                         return (EADDRINUSE);
7049                                 } else if (tinp) {
7050                                         SCTP_INP_DECR_REF(tinp);
7051                                 }
7052                         }
7053                 } else {
7054                         /* Setup a local addr bound all */
7055                         memset(&store, 0, sizeof(store));
7056 #ifdef INET6
7057                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7058                                 store.sa.sa_family = AF_INET6;
7059                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7060                         }
7061 #endif
7062 #ifdef INET
7063                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7064                                 store.sa.sa_family = AF_INET;
7065                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7066                         }
7067 #endif
7068                         switch (store.sa.sa_family) {
7069 #ifdef INET
7070                         case AF_INET:
7071                                 store.sin.sin_port = inp->sctp_lport;
7072                                 break;
7073 #endif
7074 #ifdef INET6
7075                         case AF_INET6:
7076                                 store.sin6.sin6_port = inp->sctp_lport;
7077                                 break;
7078 #endif
7079                         default:
7080                                 break;
7081                         }
7082                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7083                         if (tinp && (tinp != inp) &&
7084                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7085                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7086                             (SCTP_IS_LISTENING(tinp))) {
7087                                 /*
7088                                  * we have a listener already and its not
7089                                  * this inp.
7090                                  */
7091                                 SCTP_INP_DECR_REF(tinp);
7092                                 return (EADDRINUSE);
7093                         } else if (tinp) {
7094                                 SCTP_INP_DECR_REF(tinp);
7095                         }
7096                 }
7097         }
7098         SCTP_INP_RLOCK(inp);
7099 #ifdef SCTP_LOCK_LOGGING
7100         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7101                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7102         }
7103 #endif
7104         SOCK_LOCK(so);
7105         error = solisten_proto_check(so);
7106         SOCK_UNLOCK(so);
7107         if (error) {
7108                 SCTP_INP_RUNLOCK(inp);
7109                 return (error);
7110         }
7111         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7112             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7113                 /*
7114                  * The unlucky case - We are in the tcp pool with this guy.
7115                  * - Someone else is in the main inp slot. - We must move
7116                  * this guy (the listener) to the main slot - We must then
7117                  * move the guy that was listener to the TCP Pool.
7118                  */
7119                 if (sctp_swap_inpcb_for_listen(inp)) {
7120                         SCTP_INP_RUNLOCK(inp);
7121                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7122                         return (EADDRINUSE);
7123                 }
7124         }
7125         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7126             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7127                 /* We are already connected AND the TCP model */
7128                 SCTP_INP_RUNLOCK(inp);
7129                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7130                 return (EADDRINUSE);
7131         }
7132         SCTP_INP_RUNLOCK(inp);
7133         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7134                 /* We must do a bind. */
7135                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7136                         /* bind error, probably perm */
7137                         return (error);
7138                 }
7139         }
7140         SCTP_INP_WLOCK(inp);
7141         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7142                 SOCK_LOCK(so);
7143                 solisten_proto(so, backlog);
7144                 SOCK_UNLOCK(so);
7145         }
7146         if (backlog > 0) {
7147                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7148         } else {
7149                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7150         }
7151         SCTP_INP_WUNLOCK(inp);
7152         return (error);
7153 }
7154
7155 static int sctp_defered_wakeup_cnt = 0;
7156
7157 int
7158 sctp_accept(struct socket *so, struct sockaddr **addr)
7159 {
7160         struct sctp_tcb *stcb;
7161         struct sctp_inpcb *inp;
7162         union sctp_sockstore store;
7163 #ifdef INET6
7164         int error;
7165 #endif
7166         inp = (struct sctp_inpcb *)so->so_pcb;
7167
7168         if (inp == NULL) {
7169                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7170                 return (ECONNRESET);
7171         }
7172         SCTP_INP_RLOCK(inp);
7173         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7174                 SCTP_INP_RUNLOCK(inp);
7175                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7176                 return (EOPNOTSUPP);
7177         }
7178         if (so->so_state & SS_ISDISCONNECTED) {
7179                 SCTP_INP_RUNLOCK(inp);
7180                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7181                 return (ECONNABORTED);
7182         }
7183         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7184         if (stcb == NULL) {
7185                 SCTP_INP_RUNLOCK(inp);
7186                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7187                 return (ECONNRESET);
7188         }
7189         SCTP_TCB_LOCK(stcb);
7190         SCTP_INP_RUNLOCK(inp);
7191         store = stcb->asoc.primary_destination->ro._l_addr;
7192         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7193         SCTP_TCB_UNLOCK(stcb);
7194         switch (store.sa.sa_family) {
7195 #ifdef INET
7196         case AF_INET:
7197                 {
7198                         struct sockaddr_in *sin;
7199
7200                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7201                         if (sin == NULL)
7202                                 return (ENOMEM);
7203                         sin->sin_family = AF_INET;
7204                         sin->sin_len = sizeof(*sin);
7205                         sin->sin_port = store.sin.sin_port;
7206                         sin->sin_addr = store.sin.sin_addr;
7207                         *addr = (struct sockaddr *)sin;
7208                         break;
7209                 }
7210 #endif
7211 #ifdef INET6
7212         case AF_INET6:
7213                 {
7214                         struct sockaddr_in6 *sin6;
7215
7216                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7217                         if (sin6 == NULL)
7218                                 return (ENOMEM);
7219                         sin6->sin6_family = AF_INET6;
7220                         sin6->sin6_len = sizeof(*sin6);
7221                         sin6->sin6_port = store.sin6.sin6_port;
7222                         sin6->sin6_addr = store.sin6.sin6_addr;
7223                         if ((error = sa6_recoverscope(sin6)) != 0) {
7224                                 SCTP_FREE_SONAME(sin6);
7225                                 return (error);
7226                         }
7227                         *addr = (struct sockaddr *)sin6;
7228                         break;
7229                 }
7230 #endif
7231         default:
7232                 /* TSNH */
7233                 break;
7234         }
7235         /* Wake any delayed sleep action */
7236         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7237                 SCTP_INP_WLOCK(inp);
7238                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7239                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7240                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7241                         SCTP_INP_WUNLOCK(inp);
7242                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7243                         if (sowriteable(inp->sctp_socket)) {
7244                                 sowwakeup_locked(inp->sctp_socket);
7245                         } else {
7246                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7247                         }
7248                         SCTP_INP_WLOCK(inp);
7249                 }
7250                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7251                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7252                         SCTP_INP_WUNLOCK(inp);
7253                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7254                         if (soreadable(inp->sctp_socket)) {
7255                                 sctp_defered_wakeup_cnt++;
7256                                 sorwakeup_locked(inp->sctp_socket);
7257                         } else {
7258                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7259                         }
7260                         SCTP_INP_WLOCK(inp);
7261                 }
7262                 SCTP_INP_WUNLOCK(inp);
7263         }
7264         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7265                 SCTP_TCB_LOCK(stcb);
7266                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7267                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7268         }
7269         return (0);
7270 }
7271
7272 #ifdef INET
7273 int
7274 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7275 {
7276         struct sockaddr_in *sin;
7277         uint32_t vrf_id;
7278         struct sctp_inpcb *inp;
7279         struct sctp_ifa *sctp_ifa;
7280
7281         /*
7282          * Do the malloc first in case it blocks.
7283          */
7284         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7285         if (sin == NULL)
7286                 return (ENOMEM);
7287         sin->sin_family = AF_INET;
7288         sin->sin_len = sizeof(*sin);
7289         inp = (struct sctp_inpcb *)so->so_pcb;
7290         if (!inp) {
7291                 SCTP_FREE_SONAME(sin);
7292                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7293                 return (ECONNRESET);
7294         }
7295         SCTP_INP_RLOCK(inp);
7296         sin->sin_port = inp->sctp_lport;
7297         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7298                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7299                         struct sctp_tcb *stcb;
7300                         struct sockaddr_in *sin_a;
7301                         struct sctp_nets *net;
7302                         int fnd;
7303
7304                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7305                         if (stcb == NULL) {
7306                                 goto notConn;
7307                         }
7308                         fnd = 0;
7309                         sin_a = NULL;
7310                         SCTP_TCB_LOCK(stcb);
7311                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7312                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7313                                 if (sin_a == NULL)
7314                                         /* this will make coverity happy */
7315                                         continue;
7316
7317                                 if (sin_a->sin_family == AF_INET) {
7318                                         fnd = 1;
7319                                         break;
7320                                 }
7321                         }
7322                         if ((!fnd) || (sin_a == NULL)) {
7323                                 /* punt */
7324                                 SCTP_TCB_UNLOCK(stcb);
7325                                 goto notConn;
7326                         }
7327                         vrf_id = inp->def_vrf_id;
7328                         sctp_ifa = sctp_source_address_selection(inp,
7329                             stcb,
7330                             (sctp_route_t *)&net->ro,
7331                             net, 0, vrf_id);
7332                         if (sctp_ifa) {
7333                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7334                                 sctp_free_ifa(sctp_ifa);
7335                         }
7336                         SCTP_TCB_UNLOCK(stcb);
7337                 } else {
7338                         /* For the bound all case you get back 0 */
7339         notConn:
7340                         sin->sin_addr.s_addr = 0;
7341                 }
7342
7343         } else {
7344                 /* Take the first IPv4 address in the list */
7345                 struct sctp_laddr *laddr;
7346                 int fnd = 0;
7347
7348                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7349                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7350                                 struct sockaddr_in *sin_a;
7351
7352                                 sin_a = &laddr->ifa->address.sin;
7353                                 sin->sin_addr = sin_a->sin_addr;
7354                                 fnd = 1;
7355                                 break;
7356                         }
7357                 }
7358                 if (!fnd) {
7359                         SCTP_FREE_SONAME(sin);
7360                         SCTP_INP_RUNLOCK(inp);
7361                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7362                         return (ENOENT);
7363                 }
7364         }
7365         SCTP_INP_RUNLOCK(inp);
7366         (*addr) = (struct sockaddr *)sin;
7367         return (0);
7368 }
7369
7370 int
7371 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7372 {
7373         struct sockaddr_in *sin;
7374         int fnd;
7375         struct sockaddr_in *sin_a;
7376         struct sctp_inpcb *inp;
7377         struct sctp_tcb *stcb;
7378         struct sctp_nets *net;
7379
7380         /* Do the malloc first in case it blocks. */
7381         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7382         if (sin == NULL)
7383                 return (ENOMEM);
7384         sin->sin_family = AF_INET;
7385         sin->sin_len = sizeof(*sin);
7386
7387         inp = (struct sctp_inpcb *)so->so_pcb;
7388         if ((inp == NULL) ||
7389             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7390                 /* UDP type and listeners will drop out here */
7391                 SCTP_FREE_SONAME(sin);
7392                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7393                 return (ENOTCONN);
7394         }
7395         SCTP_INP_RLOCK(inp);
7396         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7397         if (stcb) {
7398                 SCTP_TCB_LOCK(stcb);
7399         }
7400         SCTP_INP_RUNLOCK(inp);
7401         if (stcb == NULL) {
7402                 SCTP_FREE_SONAME(sin);
7403                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7404                 return (ECONNRESET);
7405         }
7406         fnd = 0;
7407         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7408                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7409                 if (sin_a->sin_family == AF_INET) {
7410                         fnd = 1;
7411                         sin->sin_port = stcb->rport;
7412                         sin->sin_addr = sin_a->sin_addr;
7413                         break;
7414                 }
7415         }
7416         SCTP_TCB_UNLOCK(stcb);
7417         if (!fnd) {
7418                 /* No IPv4 address */
7419                 SCTP_FREE_SONAME(sin);
7420                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7421                 return (ENOENT);
7422         }
7423         (*addr) = (struct sockaddr *)sin;
7424         return (0);
7425 }
7426
7427 struct pr_usrreqs sctp_usrreqs = {
7428         .pru_abort = sctp_abort,
7429         .pru_accept = sctp_accept,
7430         .pru_attach = sctp_attach,
7431         .pru_bind = sctp_bind,
7432         .pru_connect = sctp_connect,
7433         .pru_control = in_control,
7434         .pru_close = sctp_close,
7435         .pru_detach = sctp_close,
7436         .pru_sopoll = sopoll_generic,
7437         .pru_flush = sctp_flush,
7438         .pru_disconnect = sctp_disconnect,
7439         .pru_listen = sctp_listen,
7440         .pru_peeraddr = sctp_peeraddr,
7441         .pru_send = sctp_sendm,
7442         .pru_shutdown = sctp_shutdown,
7443         .pru_sockaddr = sctp_ingetaddr,
7444         .pru_sosend = sctp_sosend,
7445         .pru_soreceive = sctp_soreceive
7446 };
7447 #endif