sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56
  57
  58
  59 extern const struct sctp_cc_functions sctp_cc_functions[];
  60 extern const struct sctp_ss_functions sctp_ss_functions[];
  61
  62 void
  63 sctp_init(void)
  64 {
  65         u_long sb_max_adj;
  66
  67         /* Initialize and modify the sysctled variables */
  68         sctp_init_sysctls();
  69         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  70                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  71         /*
  72          * Allow a user to take no more than 1/2 the number of clusters or
  73          * the SB_MAX whichever is smaller for the send window.
  74          */
  75         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  76         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  77             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  78         /*
  79          * Now for the recv window, should we take the same amount? or
  80          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  81          * now I will just copy.
  82          */
  83         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  84         SCTP_BASE_VAR(first_time) = 0;
  85         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  86         sctp_pcb_init();
  87 #if defined(SCTP_PACKET_LOGGING)
  88         SCTP_BASE_VAR(packet_log_writers) = 0;
  89         SCTP_BASE_VAR(packet_log_end) = 0;
  90         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  91 #endif
  92 }
  93
  94 #ifdef VIMAGE
  95 static void
  96 sctp_finish(void *unused __unused)
  97 {
  98         sctp_pcb_finish();
  99 }
 100
 101 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 102 #endif
 103
 104 void
 105 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 106 {
 107         struct sctp_tmit_chunk *chk;
 108         uint16_t overhead;
 109
 110         /* Adjust that too */
 111         stcb->asoc.smallest_mtu = nxtsz;
 112         /* now off to subtract IP_DF flag if needed */
 113         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 114         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 115                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 116         }
 117         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 118                 if ((chk->send_size + overhead) > nxtsz) {
 119                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 120                 }
 121         }
 122         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 123                 if ((chk->send_size + overhead) > nxtsz) {
 124                         /*
 125                          * For this guy we also mark for immediate resend
 126                          * since we sent to big of chunk
 127                          */
 128                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 129                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 130                                 sctp_flight_size_decrease(chk);
 131                                 sctp_total_flight_decrease(stcb, chk);
 132                                 chk->sent = SCTP_DATAGRAM_RESEND;
 133                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 134                                 chk->rec.data.doing_fast_retransmit = 0;
 135                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 136                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 137                                             chk->whoTo->flight_size,
 138                                             chk->book_size,
 139                                             (uint32_t)(uintptr_t)chk->whoTo,
 140                                             chk->rec.data.tsn);
 141                                 }
 142                                 /* Clear any time so NO RTT is being done */
 143                                 chk->do_rtt = 0;
 144                         }
 145                 }
 146         }
 147 }
 148
 149 #ifdef INET
 150 void
 151 sctp_notify(struct sctp_inpcb *inp,
 152     struct sctp_tcb *stcb,
 153     struct sctp_nets *net,
 154     uint8_t icmp_type,
 155     uint8_t icmp_code,
 156     uint16_t ip_len,
 157     uint32_t next_mtu)
 158 {
 159 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 160         struct socket *so;
 161 #endif
 162         int timer_stopped;
 163
 164         if (icmp_type != ICMP_UNREACH) {
 165                 /* We only care about unreachable */
 166                 SCTP_TCB_UNLOCK(stcb);
 167                 return;
 168         }
 169         if ((icmp_code == ICMP_UNREACH_NET) ||
 170             (icmp_code == ICMP_UNREACH_HOST) ||
 171             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 172             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 173             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 174             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 175             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 176             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 177                 /* Mark the net unreachable. */
 178                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 179                         /* OK, that destination is NOT reachable. */
 180                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 181                         net->dest_state &= ~SCTP_ADDR_PF;
 182                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 183                             stcb, 0,
 184                             (void *)net, SCTP_SO_NOT_LOCKED);
 185                 }
 186                 SCTP_TCB_UNLOCK(stcb);
 187         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 188             (icmp_code == ICMP_UNREACH_PORT)) {
 189                 /* Treat it like an ABORT. */
 190                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 191 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 192                 so = SCTP_INP_SO(inp);
 193                 atomic_add_int(&stcb->asoc.refcnt, 1);
 194                 SCTP_TCB_UNLOCK(stcb);
 195                 SCTP_SOCKET_LOCK(so, 1);
 196                 SCTP_TCB_LOCK(stcb);
 197                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 198 #endif
 199                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 200                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 201 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 202                 SCTP_SOCKET_UNLOCK(so, 1);
 203                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 204 #endif
 205                 /* no need to unlock here, since the TCB is gone */
 206         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 207                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 208                         SCTP_TCB_UNLOCK(stcb);
 209                         return;
 210                 }
 211                 /* Find the next (smaller) MTU */
 212                 if (next_mtu == 0) {
 213                         /*
 214                          * Old type router that does not tell us what the
 215                          * next MTU is. Rats we will have to guess (in a
 216                          * educated fashion of course).
 217                          */
 218                         next_mtu = sctp_get_prev_mtu(ip_len);
 219                 }
 220                 /* Stop the PMTU timer. */
 221                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 222                         timer_stopped = 1;
 223                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 224                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 225                 } else {
 226                         timer_stopped = 0;
 227                 }
 228                 /* Update the path MTU. */
 229                 if (net->port) {
 230                         next_mtu -= sizeof(struct udphdr);
 231                 }
 232                 if (net->mtu > next_mtu) {
 233                         net->mtu = next_mtu;
 234                         if (net->port) {
 235                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 236                         } else {
 237                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 238                         }
 239                 }
 240                 /* Update the association MTU */
 241                 if (stcb->asoc.smallest_mtu > next_mtu) {
 242                         sctp_pathmtu_adjustment(stcb, next_mtu);
 243                 }
 244                 /* Finally, start the PMTU timer if it was running before. */
 245                 if (timer_stopped) {
 246                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 247                 }
 248                 SCTP_TCB_UNLOCK(stcb);
 249         } else {
 250                 SCTP_TCB_UNLOCK(stcb);
 251         }
 252 }
 253
 254 void
 255 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 256 {
 257         struct ip *outer_ip;
 258         struct ip *inner_ip;
 259         struct sctphdr *sh;
 260         struct icmp *icmp;
 261         struct sctp_inpcb *inp;
 262         struct sctp_tcb *stcb;
 263         struct sctp_nets *net;
 264         struct sctp_init_chunk *ch;
 265         struct sockaddr_in src, dst;
 266
 267         if (sa->sa_family != AF_INET ||
 268             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 269                 return;
 270         }
 271         if (PRC_IS_REDIRECT(cmd)) {
 272                 vip = NULL;
 273         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 274                 return;
 275         }
 276         if (vip != NULL) {
 277                 inner_ip = (struct ip *)vip;
 278                 icmp = (struct icmp *)((caddr_t)inner_ip -
 279                     (sizeof(struct icmp) - sizeof(struct ip)));
 280                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 281                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 282                 memset(&src, 0, sizeof(struct sockaddr_in));
 283                 src.sin_family = AF_INET;
 284                 src.sin_len = sizeof(struct sockaddr_in);
 285                 src.sin_port = sh->src_port;
 286                 src.sin_addr = inner_ip->ip_src;
 287                 memset(&dst, 0, sizeof(struct sockaddr_in));
 288                 dst.sin_family = AF_INET;
 289                 dst.sin_len = sizeof(struct sockaddr_in);
 290                 dst.sin_port = sh->dest_port;
 291                 dst.sin_addr = inner_ip->ip_dst;
 292                 /*
 293                  * 'dst' holds the dest of the packet that failed to be
 294                  * sent. 'src' holds our local endpoint address. Thus we
 295                  * reverse the dst and the src in the lookup.
 296                  */
 297                 inp = NULL;
 298                 net = NULL;
 299                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 300                     (struct sockaddr *)&src,
 301                     &inp, &net, 1,
 302                     SCTP_DEFAULT_VRFID);
 303                 if ((stcb != NULL) &&
 304                     (net != NULL) &&
 305                     (inp != NULL)) {
 306                         /* Check the verification tag */
 307                         if (ntohl(sh->v_tag) != 0) {
 308                                 /*
 309                                  * This must be the verification tag used
 310                                  * for sending out packets. We don't
 311                                  * consider packets reflecting the
 312                                  * verification tag.
 313                                  */
 314                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 315                                         SCTP_TCB_UNLOCK(stcb);
 316                                         return;
 317                                 }
 318                         } else {
 319                                 if (ntohs(outer_ip->ip_len) >=
 320                                     sizeof(struct ip) +
 321                                     8 + (inner_ip->ip_hl << 2) + 20) {
 322                                         /*
 323                                          * In this case we can check if we
 324                                          * got an INIT chunk and if the
 325                                          * initiate tag matches.
 326                                          */
 327                                         ch = (struct sctp_init_chunk *)(sh + 1);
 328                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 329                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 330                                                 SCTP_TCB_UNLOCK(stcb);
 331                                                 return;
 332                                         }
 333                                 } else {
 334                                         SCTP_TCB_UNLOCK(stcb);
 335                                         return;
 336                                 }
 337                         }
 338                         sctp_notify(inp, stcb, net,
 339                             icmp->icmp_type,
 340                             icmp->icmp_code,
 341                             ntohs(inner_ip->ip_len),
 342                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 343                 } else {
 344                         if ((stcb == NULL) && (inp != NULL)) {
 345                                 /* reduce ref-count */
 346                                 SCTP_INP_WLOCK(inp);
 347                                 SCTP_INP_DECR_REF(inp);
 348                                 SCTP_INP_WUNLOCK(inp);
 349                         }
 350                         if (stcb) {
 351                                 SCTP_TCB_UNLOCK(stcb);
 352                         }
 353                 }
 354         }
 355         return;
 356 }
 357 #endif
 358
 359 static int
 360 sctp_getcred(SYSCTL_HANDLER_ARGS)
 361 {
 362         struct xucred xuc;
 363         struct sockaddr_in addrs[2];
 364         struct sctp_inpcb *inp;
 365         struct sctp_nets *net;
 366         struct sctp_tcb *stcb;
 367         int error;
 368         uint32_t vrf_id;
 369
 370         /* FIX, for non-bsd is this right? */
 371         vrf_id = SCTP_DEFAULT_VRFID;
 372
 373         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 374
 375         if (error)
 376                 return (error);
 377
 378         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 379         if (error)
 380                 return (error);
 381
 382         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 383             sintosa(&addrs[0]),
 384             &inp, &net, 1, vrf_id);
 385         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 386                 if ((inp != NULL) && (stcb == NULL)) {
 387                         /* reduce ref-count */
 388                         SCTP_INP_WLOCK(inp);
 389                         SCTP_INP_DECR_REF(inp);
 390                         goto cred_can_cont;
 391                 }
 392
 393                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 394                 error = ENOENT;
 395                 goto out;
 396         }
 397         SCTP_TCB_UNLOCK(stcb);
 398         /*
 399          * We use the write lock here, only since in the error leg we need
 400          * it. If we used RLOCK, then we would have to
 401          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 402          * Better to use higher wlock.
 403          */
 404         SCTP_INP_WLOCK(inp);
 405 cred_can_cont:
 406         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 407         if (error) {
 408                 SCTP_INP_WUNLOCK(inp);
 409                 goto out;
 410         }
 411         cru2x(inp->sctp_socket->so_cred, &xuc);
 412         SCTP_INP_WUNLOCK(inp);
 413         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 414 out:
 415         return (error);
 416 }
 417
 418 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 419     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 420
 421
 422 #ifdef INET
 423 static void
 424 sctp_abort(struct socket *so)
 425 {
 426         struct sctp_inpcb *inp;
 427         uint32_t flags;
 428
 429         inp = (struct sctp_inpcb *)so->so_pcb;
 430         if (inp == NULL) {
 431                 return;
 432         }
 433
 434 sctp_must_try_again:
 435         flags = inp->sctp_flags;
 436 #ifdef SCTP_LOG_CLOSING
 437         sctp_log_closing(inp, NULL, 17);
 438 #endif
 439         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 440             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 441 #ifdef SCTP_LOG_CLOSING
 442                 sctp_log_closing(inp, NULL, 16);
 443 #endif
 444                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 445                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 446                 SOCK_LOCK(so);
 447                 SCTP_SB_CLEAR(so->so_snd);
 448                 /*
 449                  * same for the rcv ones, they are only here for the
 450                  * accounting/select.
 451                  */
 452                 SCTP_SB_CLEAR(so->so_rcv);
 453
 454                 /* Now null out the reference, we are completely detached. */
 455                 so->so_pcb = NULL;
 456                 SOCK_UNLOCK(so);
 457         } else {
 458                 flags = inp->sctp_flags;
 459                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 460                         goto sctp_must_try_again;
 461                 }
 462         }
 463         return;
 464 }
 465
 466 static int
 467 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 468 {
 469         struct sctp_inpcb *inp;
 470         struct inpcb *ip_inp;
 471         int error;
 472         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 473
 474         inp = (struct sctp_inpcb *)so->so_pcb;
 475         if (inp != NULL) {
 476                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 477                 return (EINVAL);
 478         }
 479         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 480                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 481                 if (error) {
 482                         return (error);
 483                 }
 484         }
 485         error = sctp_inpcb_alloc(so, vrf_id);
 486         if (error) {
 487                 return (error);
 488         }
 489         inp = (struct sctp_inpcb *)so->so_pcb;
 490         SCTP_INP_WLOCK(inp);
 491         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 492         ip_inp = &inp->ip_inp.inp;
 493         ip_inp->inp_vflag |= INP_IPV4;
 494         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 495         SCTP_INP_WUNLOCK(inp);
 496         return (0);
 497 }
 498
 499 static int
 500 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 501 {
 502         struct sctp_inpcb *inp;
 503
 504         inp = (struct sctp_inpcb *)so->so_pcb;
 505         if (inp == NULL) {
 506                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 507                 return (EINVAL);
 508         }
 509         if (addr != NULL) {
 510                 if ((addr->sa_family != AF_INET) ||
 511                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 512                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 513                         return (EINVAL);
 514                 }
 515         }
 516         return (sctp_inpcb_bind(so, addr, NULL, p));
 517 }
 518
 519 #endif
 520 void
 521 sctp_close(struct socket *so)
 522 {
 523         struct sctp_inpcb *inp;
 524         uint32_t flags;
 525
 526         inp = (struct sctp_inpcb *)so->so_pcb;
 527         if (inp == NULL)
 528                 return;
 529
 530         /*
 531          * Inform all the lower layer assoc that we are done.
 532          */
 533 sctp_must_try_again:
 534         flags = inp->sctp_flags;
 535 #ifdef SCTP_LOG_CLOSING
 536         sctp_log_closing(inp, NULL, 17);
 537 #endif
 538         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 539             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 540                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 541                     (so->so_rcv.sb_cc > 0)) {
 542 #ifdef SCTP_LOG_CLOSING
 543                         sctp_log_closing(inp, NULL, 13);
 544 #endif
 545                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 546                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 547                 } else {
 548 #ifdef SCTP_LOG_CLOSING
 549                         sctp_log_closing(inp, NULL, 14);
 550 #endif
 551                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 552                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 553                 }
 554                 /*
 555                  * The socket is now detached, no matter what the state of
 556                  * the SCTP association.
 557                  */
 558                 SOCK_LOCK(so);
 559                 SCTP_SB_CLEAR(so->so_snd);
 560                 /*
 561                  * same for the rcv ones, they are only here for the
 562                  * accounting/select.
 563                  */
 564                 SCTP_SB_CLEAR(so->so_rcv);
 565
 566                 /* Now null out the reference, we are completely detached. */
 567                 so->so_pcb = NULL;
 568                 SOCK_UNLOCK(so);
 569         } else {
 570                 flags = inp->sctp_flags;
 571                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 572                         goto sctp_must_try_again;
 573                 }
 574         }
 575         return;
 576 }
 577
 578
 579 int
 580 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 581     struct mbuf *control, struct thread *p);
 582
 583
 584 int
 585 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 586     struct mbuf *control, struct thread *p)
 587 {
 588         struct sctp_inpcb *inp;
 589         int error;
 590
 591         inp = (struct sctp_inpcb *)so->so_pcb;
 592         if (inp == NULL) {
 593                 if (control) {
 594                         sctp_m_freem(control);
 595                         control = NULL;
 596                 }
 597                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 598                 sctp_m_freem(m);
 599                 return (EINVAL);
 600         }
 601         /* Got to have an to address if we are NOT a connected socket */
 602         if ((addr == NULL) &&
 603             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 604             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 605                 goto connected_type;
 606         } else if (addr == NULL) {
 607                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 608                 error = EDESTADDRREQ;
 609                 sctp_m_freem(m);
 610                 if (control) {
 611                         sctp_m_freem(control);
 612                         control = NULL;
 613                 }
 614                 return (error);
 615         }
 616 #ifdef INET6
 617         if (addr->sa_family != AF_INET) {
 618                 /* must be a v4 address! */
 619                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 620                 sctp_m_freem(m);
 621                 if (control) {
 622                         sctp_m_freem(control);
 623                         control = NULL;
 624                 }
 625                 error = EDESTADDRREQ;
 626                 return (error);
 627         }
 628 #endif                          /* INET6 */
 629 connected_type:
 630         /* now what about control */
 631         if (control) {
 632                 if (inp->control) {
 633                         sctp_m_freem(inp->control);
 634                         inp->control = NULL;
 635                 }
 636                 inp->control = control;
 637         }
 638         /* Place the data */
 639         if (inp->pkt) {
 640                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 641                 inp->pkt_last = m;
 642         } else {
 643                 inp->pkt_last = inp->pkt = m;
 644         }
 645         if (
 646         /* FreeBSD uses a flag passed */
 647             ((flags & PRUS_MORETOCOME) == 0)
 648             ) {
 649                 /*
 650                  * note with the current version this code will only be used
 651                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 652                  * re-defining sosend to use the sctp_sosend. One can
 653                  * optionally switch back to this code (by changing back the
 654                  * definitions) but this is not advisable. This code is used
 655                  * by FreeBSD when sending a file with sendfile() though.
 656                  */
 657                 int ret;
 658
 659                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 660                 inp->pkt = NULL;
 661                 inp->control = NULL;
 662                 return (ret);
 663         } else {
 664                 return (0);
 665         }
 666 }
 667
 668 int
 669 sctp_disconnect(struct socket *so)
 670 {
 671         struct sctp_inpcb *inp;
 672
 673         inp = (struct sctp_inpcb *)so->so_pcb;
 674         if (inp == NULL) {
 675                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 676                 return (ENOTCONN);
 677         }
 678         SCTP_INP_RLOCK(inp);
 679         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 680             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 681                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 682                         /* No connection */
 683                         SCTP_INP_RUNLOCK(inp);
 684                         return (0);
 685                 } else {
 686                         struct sctp_association *asoc;
 687                         struct sctp_tcb *stcb;
 688
 689                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 690                         if (stcb == NULL) {
 691                                 SCTP_INP_RUNLOCK(inp);
 692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 693                                 return (EINVAL);
 694                         }
 695                         SCTP_TCB_LOCK(stcb);
 696                         asoc = &stcb->asoc;
 697                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 698                                 /* We are about to be freed, out of here */
 699                                 SCTP_TCB_UNLOCK(stcb);
 700                                 SCTP_INP_RUNLOCK(inp);
 701                                 return (0);
 702                         }
 703                         if (((so->so_options & SO_LINGER) &&
 704                             (so->so_linger == 0)) ||
 705                             (so->so_rcv.sb_cc > 0)) {
 706                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 707                                         /* Left with Data unread */
 708                                         struct mbuf *op_err;
 709
 710                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 711                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 712                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 713                                 }
 714                                 SCTP_INP_RUNLOCK(inp);
 715                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 716                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 717                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 718                                 }
 719                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 720                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 721                                 /* No unlock tcb assoc is gone */
 722                                 return (0);
 723                         }
 724                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 725                             TAILQ_EMPTY(&asoc->sent_queue) &&
 726                             (asoc->stream_queue_cnt == 0)) {
 727                                 /* there is nothing queued to send, so done */
 728                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 729                                         goto abort_anyway;
 730                                 }
 731                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 732                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 733                                         /* only send SHUTDOWN 1st time thru */
 734                                         struct sctp_nets *netp;
 735
 736                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 737                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 738                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 739                                         }
 740                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 741                                         sctp_stop_timers_for_shutdown(stcb);
 742                                         if (stcb->asoc.alternate) {
 743                                                 netp = stcb->asoc.alternate;
 744                                         } else {
 745                                                 netp = stcb->asoc.primary_destination;
 746                                         }
 747                                         sctp_send_shutdown(stcb, netp);
 748                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 749                                             stcb->sctp_ep, stcb, netp);
 750                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 751                                             stcb->sctp_ep, stcb, netp);
 752                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 753                                 }
 754                         } else {
 755                                 /*
 756                                  * we still got (or just got) data to send,
 757                                  * so set SHUTDOWN_PENDING
 758                                  */
 759                                 /*
 760                                  * XXX sockets draft says that SCTP_EOF
 761                                  * should be sent with no data. currently,
 762                                  * we will allow user data to be sent first
 763                                  * and move to SHUTDOWN-PENDING
 764                                  */
 765                                 struct sctp_nets *netp;
 766
 767                                 if (stcb->asoc.alternate) {
 768                                         netp = stcb->asoc.alternate;
 769                                 } else {
 770                                         netp = stcb->asoc.primary_destination;
 771                                 }
 772
 773                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 774                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 775                                     netp);
 776                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 777                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 778                                 }
 779                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 780                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 781                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 782                                         struct mbuf *op_err;
 783
 784                         abort_anyway:
 785                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 786                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 787                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 788                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 789                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 790                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 791                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 792                                         }
 793                                         SCTP_INP_RUNLOCK(inp);
 794                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 795                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 796                                         return (0);
 797                                 } else {
 798                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 799                                 }
 800                         }
 801                         soisdisconnecting(so);
 802                         SCTP_TCB_UNLOCK(stcb);
 803                         SCTP_INP_RUNLOCK(inp);
 804                         return (0);
 805                 }
 806                 /* not reached */
 807         } else {
 808                 /* UDP model does not support this */
 809                 SCTP_INP_RUNLOCK(inp);
 810                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 811                 return (EOPNOTSUPP);
 812         }
 813 }
 814
 815 int
 816 sctp_flush(struct socket *so, int how)
 817 {
 818         /*
 819          * We will just clear out the values and let subsequent close clear
 820          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 821          * they will not be able to read the data, the socket will block
 822          * that from happening.
 823          */
 824         struct sctp_inpcb *inp;
 825
 826         inp = (struct sctp_inpcb *)so->so_pcb;
 827         if (inp == NULL) {
 828                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 829                 return (EINVAL);
 830         }
 831         SCTP_INP_RLOCK(inp);
 832         /* For the 1 to many model this does nothing */
 833         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 834                 SCTP_INP_RUNLOCK(inp);
 835                 return (0);
 836         }
 837         SCTP_INP_RUNLOCK(inp);
 838         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 839                 /*
 840                  * First make sure the sb will be happy, we don't use these
 841                  * except maybe the count
 842                  */
 843                 SCTP_INP_WLOCK(inp);
 844                 SCTP_INP_READ_LOCK(inp);
 845                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 846                 SCTP_INP_READ_UNLOCK(inp);
 847                 SCTP_INP_WUNLOCK(inp);
 848                 so->so_rcv.sb_cc = 0;
 849                 so->so_rcv.sb_mbcnt = 0;
 850                 so->so_rcv.sb_mb = NULL;
 851         }
 852         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 853                 /*
 854                  * First make sure the sb will be happy, we don't use these
 855                  * except maybe the count
 856                  */
 857                 so->so_snd.sb_cc = 0;
 858                 so->so_snd.sb_mbcnt = 0;
 859                 so->so_snd.sb_mb = NULL;
 860
 861         }
 862         return (0);
 863 }
 864
 865 int
 866 sctp_shutdown(struct socket *so)
 867 {
 868         struct sctp_inpcb *inp;
 869
 870         inp = (struct sctp_inpcb *)so->so_pcb;
 871         if (inp == NULL) {
 872                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 873                 return (EINVAL);
 874         }
 875         SCTP_INP_RLOCK(inp);
 876         /* For UDP model this is a invalid call */
 877         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 878             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 879                 /* Restore the flags that the soshutdown took away. */
 880                 SOCKBUF_LOCK(&so->so_rcv);
 881                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 882                 SOCKBUF_UNLOCK(&so->so_rcv);
 883                 /* This proc will wakeup for read and do nothing (I hope) */
 884                 SCTP_INP_RUNLOCK(inp);
 885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 886                 return (EOPNOTSUPP);
 887         } else {
 888                 /*
 889                  * Ok, if we reach here its the TCP model and it is either a
 890                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 891                  * against it.
 892                  */
 893                 struct sctp_tcb *stcb;
 894                 struct sctp_association *asoc;
 895                 struct sctp_nets *netp;
 896
 897                 if ((so->so_state &
 898                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 899                         SCTP_INP_RUNLOCK(inp);
 900                         return (ENOTCONN);
 901                 }
 902                 socantsendmore(so);
 903
 904                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 905                 if (stcb == NULL) {
 906                         /*
 907                          * Ok, we hit the case that the shutdown call was
 908                          * made after an abort or something. Nothing to do
 909                          * now.
 910                          */
 911                         SCTP_INP_RUNLOCK(inp);
 912                         return (0);
 913                 }
 914                 SCTP_TCB_LOCK(stcb);
 915                 asoc = &stcb->asoc;
 916                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 917                         SCTP_TCB_UNLOCK(stcb);
 918                         SCTP_INP_RUNLOCK(inp);
 919                         return (0);
 920                 }
 921                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 922                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 923                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 924                         /*
 925                          * If we are not in or before ESTABLISHED, there is
 926                          * no protocol action required.
 927                          */
 928                         SCTP_TCB_UNLOCK(stcb);
 929                         SCTP_INP_RUNLOCK(inp);
 930                         return (0);
 931                 }
 932                 if (stcb->asoc.alternate) {
 933                         netp = stcb->asoc.alternate;
 934                 } else {
 935                         netp = stcb->asoc.primary_destination;
 936                 }
 937                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 938                     TAILQ_EMPTY(&asoc->send_queue) &&
 939                     TAILQ_EMPTY(&asoc->sent_queue) &&
 940                     (asoc->stream_queue_cnt == 0)) {
 941                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 942                                 goto abort_anyway;
 943                         }
 944                         /* there is nothing queued to send, so I'm done... */
 945                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 946                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 947                         sctp_stop_timers_for_shutdown(stcb);
 948                         sctp_send_shutdown(stcb, netp);
 949                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 950                             stcb->sctp_ep, stcb, netp);
 951                 } else {
 952                         /*
 953                          * We still got (or just got) data to send, so set
 954                          * SHUTDOWN_PENDING.
 955                          */
 956                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 957                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 958                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 959                         }
 960                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 961                             TAILQ_EMPTY(&asoc->sent_queue) &&
 962                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 963                                 struct mbuf *op_err;
 964
 965                 abort_anyway:
 966                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 967                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 968                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 969                                     op_err, SCTP_SO_LOCKED);
 970                                 SCTP_INP_RUNLOCK(inp);
 971                                 return (0);
 972                         }
 973                 }
 974                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 975                 /*
 976                  * XXX: Why do this in the case where we have still data
 977                  * queued?
 978                  */
 979                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 980                 SCTP_TCB_UNLOCK(stcb);
 981                 SCTP_INP_RUNLOCK(inp);
 982                 return (0);
 983         }
 984 }
 985
 986 /*
 987  * copies a "user" presentable address and removes embedded scope, etc.
 988  * returns 0 on success, 1 on error
 989  */
 990 static uint32_t
 991 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 992 {
 993 #ifdef INET6
 994         struct sockaddr_in6 lsa6;
 995
 996         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 997             &lsa6);
 998 #endif
 999         memcpy(ss, sa, sa->sa_len);
1000         return (0);
1001 }
1002
1003
1004
1005 /*
1006  * NOTE: assumes addr lock is held
1007  */
1008 static size_t
1009 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1010     struct sctp_tcb *stcb,
1011     size_t limit,
1012     struct sockaddr_storage *sas,
1013     uint32_t vrf_id)
1014 {
1015         struct sctp_ifn *sctp_ifn;
1016         struct sctp_ifa *sctp_ifa;
1017         size_t actual;
1018         int loopback_scope;
1019 #if defined(INET)
1020         int ipv4_local_scope, ipv4_addr_legal;
1021 #endif
1022 #if defined(INET6)
1023         int local_scope, site_scope, ipv6_addr_legal;
1024 #endif
1025         struct sctp_vrf *vrf;
1026
1027         actual = 0;
1028         if (limit <= 0)
1029                 return (actual);
1030
1031         if (stcb) {
1032                 /* Turn on all the appropriate scope */
1033                 loopback_scope = stcb->asoc.scope.loopback_scope;
1034 #if defined(INET)
1035                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1036                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1037 #endif
1038 #if defined(INET6)
1039                 local_scope = stcb->asoc.scope.local_scope;
1040                 site_scope = stcb->asoc.scope.site_scope;
1041                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1042 #endif
1043         } else {
1044                 /* Use generic values for endpoints. */
1045                 loopback_scope = 1;
1046 #if defined(INET)
1047                 ipv4_local_scope = 1;
1048 #endif
1049 #if defined(INET6)
1050                 local_scope = 1;
1051                 site_scope = 1;
1052 #endif
1053                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1054 #if defined(INET6)
1055                         ipv6_addr_legal = 1;
1056 #endif
1057 #if defined(INET)
1058                         if (SCTP_IPV6_V6ONLY(inp)) {
1059                                 ipv4_addr_legal = 0;
1060                         } else {
1061                                 ipv4_addr_legal = 1;
1062                         }
1063 #endif
1064                 } else {
1065 #if defined(INET6)
1066                         ipv6_addr_legal = 0;
1067 #endif
1068 #if defined(INET)
1069                         ipv4_addr_legal = 1;
1070 #endif
1071                 }
1072         }
1073         vrf = sctp_find_vrf(vrf_id);
1074         if (vrf == NULL) {
1075                 return (0);
1076         }
1077         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1078                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1079                         if ((loopback_scope == 0) &&
1080                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1081                                 /* Skip loopback if loopback_scope not set */
1082                                 continue;
1083                         }
1084                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1085                                 if (stcb) {
1086                                         /*
1087                                          * For the BOUND-ALL case, the list
1088                                          * associated with a TCB is Always
1089                                          * considered a reverse list.. i.e.
1090                                          * it lists addresses that are NOT
1091                                          * part of the association. If this
1092                                          * is one of those we must skip it.
1093                                          */
1094                                         if (sctp_is_addr_restricted(stcb,
1095                                             sctp_ifa)) {
1096                                                 continue;
1097                                         }
1098                                 }
1099                                 switch (sctp_ifa->address.sa.sa_family) {
1100 #ifdef INET
1101                                 case AF_INET:
1102                                         if (ipv4_addr_legal) {
1103                                                 struct sockaddr_in *sin;
1104
1105                                                 sin = &sctp_ifa->address.sin;
1106                                                 if (sin->sin_addr.s_addr == 0) {
1107                                                         /*
1108                                                          * we skip
1109                                                          * unspecifed
1110                                                          * addresses
1111                                                          */
1112                                                         continue;
1113                                                 }
1114                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1115                                                     &sin->sin_addr) != 0) {
1116                                                         continue;
1117                                                 }
1118                                                 if ((ipv4_local_scope == 0) &&
1119                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1120                                                         continue;
1121                                                 }
1122 #ifdef INET6
1123                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1124                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1125                                                                 return (actual);
1126                                                         }
1127                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1128                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1129                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1130                                                         actual += sizeof(struct sockaddr_in6);
1131                                                 } else {
1132 #endif
1133                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1134                                                                 return (actual);
1135                                                         }
1136                                                         memcpy(sas, sin, sizeof(struct sockaddr_in));
1137                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1138                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in));
1139                                                         actual += sizeof(struct sockaddr_in);
1140 #ifdef INET6
1141                                                 }
1142 #endif
1143                                         } else {
1144                                                 continue;
1145                                         }
1146                                         break;
1147 #endif
1148 #ifdef INET6
1149                                 case AF_INET6:
1150                                         if (ipv6_addr_legal) {
1151                                                 struct sockaddr_in6 *sin6;
1152
1153                                                 sin6 = &sctp_ifa->address.sin6;
1154                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1155                                                         /*
1156                                                          * we skip
1157                                                          * unspecifed
1158                                                          * addresses
1159                                                          */
1160                                                         continue;
1161                                                 }
1162                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1163                                                     &sin6->sin6_addr) != 0) {
1164                                                         continue;
1165                                                 }
1166                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1167                                                         if (local_scope == 0)
1168                                                                 continue;
1169                                                         if (sin6->sin6_scope_id == 0) {
1170                                                                 if (sa6_recoverscope(sin6) != 0)
1171                                                                         /*
1172                                                                          *
1173                                                                          * bad
1174                                                                          * link
1175                                                                          *
1176                                                                          * local
1177                                                                          *
1178                                                                          * address
1179                                                                          */
1180                                                                         continue;
1181                                                         }
1182                                                 }
1183                                                 if ((site_scope == 0) &&
1184                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1185                                                         continue;
1186                                                 }
1187                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1188                                                         return (actual);
1189                                                 }
1190                                                 memcpy(sas, sin6, sizeof(struct sockaddr_in6));
1191                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1192                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1193                                                 actual += sizeof(struct sockaddr_in6);
1194                                         } else {
1195                                                 continue;
1196                                         }
1197                                         break;
1198 #endif
1199                                 default:
1200                                         /* TSNH */
1201                                         break;
1202                                 }
1203                         }
1204                 }
1205         } else {
1206                 struct sctp_laddr *laddr;
1207                 size_t sa_len;
1208
1209                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1210                         if (stcb) {
1211                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1212                                         continue;
1213                                 }
1214                         }
1215                         sa_len = laddr->ifa->address.sa.sa_len;
1216                         if (actual + sa_len > limit) {
1217                                 return (actual);
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 + sa_len);
1237                         actual += sa_len;
1238                 }
1239         }
1240         return (actual);
1241 }
1242
1243 static size_t
1244 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1245     struct sctp_tcb *stcb,
1246     size_t limit,
1247     struct sockaddr_storage *sas)
1248 {
1249         size_t size = 0;
1250
1251         SCTP_IPI_ADDR_RLOCK();
1252         /* fill up addresses for the endpoint's default vrf */
1253         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1254             inp->def_vrf_id);
1255         SCTP_IPI_ADDR_RUNLOCK();
1256         return (size);
1257 }
1258
1259 /*
1260  * NOTE: assumes addr lock is held
1261  */
1262 static int
1263 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1264 {
1265         int cnt = 0;
1266         struct sctp_vrf *vrf = NULL;
1267
1268         /*
1269          * In both sub-set bound an bound_all cases we return the MAXIMUM
1270          * number of addresses that you COULD get. In reality the sub-set
1271          * bound may have an exclusion list for a given TCB OR in the
1272          * bound-all case a TCB may NOT include the loopback or other
1273          * addresses as well.
1274          */
1275         vrf = sctp_find_vrf(vrf_id);
1276         if (vrf == NULL) {
1277                 return (0);
1278         }
1279         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1280                 struct sctp_ifn *sctp_ifn;
1281                 struct sctp_ifa *sctp_ifa;
1282
1283                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1284                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1285                                 /* Count them if they are the right type */
1286                                 switch (sctp_ifa->address.sa.sa_family) {
1287 #ifdef INET
1288                                 case AF_INET:
1289 #ifdef INET6
1290                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1291                                                 cnt += sizeof(struct sockaddr_in6);
1292                                         else
1293                                                 cnt += sizeof(struct sockaddr_in);
1294 #else
1295                                         cnt += sizeof(struct sockaddr_in);
1296 #endif
1297                                         break;
1298 #endif
1299 #ifdef INET6
1300                                 case AF_INET6:
1301                                         cnt += sizeof(struct sockaddr_in6);
1302                                         break;
1303 #endif
1304                                 default:
1305                                         break;
1306                                 }
1307                         }
1308                 }
1309         } else {
1310                 struct sctp_laddr *laddr;
1311
1312                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1313                         switch (laddr->ifa->address.sa.sa_family) {
1314 #ifdef INET
1315                         case AF_INET:
1316 #ifdef INET6
1317                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1318                                         cnt += sizeof(struct sockaddr_in6);
1319                                 else
1320                                         cnt += sizeof(struct sockaddr_in);
1321 #else
1322                                 cnt += sizeof(struct sockaddr_in);
1323 #endif
1324                                 break;
1325 #endif
1326 #ifdef INET6
1327                         case AF_INET6:
1328                                 cnt += sizeof(struct sockaddr_in6);
1329                                 break;
1330 #endif
1331                         default:
1332                                 break;
1333                         }
1334                 }
1335         }
1336         return (cnt);
1337 }
1338
1339 static int
1340 sctp_count_max_addresses(struct sctp_inpcb *inp)
1341 {
1342         int cnt = 0;
1343
1344         SCTP_IPI_ADDR_RLOCK();
1345         /* count addresses for the endpoint's default VRF */
1346         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1347         SCTP_IPI_ADDR_RUNLOCK();
1348         return (cnt);
1349 }
1350
1351 static int
1352 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1353     size_t optsize, void *p, int delay)
1354 {
1355         int error = 0;
1356         int creat_lock_on = 0;
1357         struct sctp_tcb *stcb = NULL;
1358         struct sockaddr *sa;
1359         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1360         uint32_t vrf_id;
1361         int bad_addresses = 0;
1362         sctp_assoc_t *a_id;
1363
1364         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1365
1366         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1367             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1368                 /* We are already connected AND the TCP model */
1369                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1370                 return (EADDRINUSE);
1371         }
1372
1373         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1374             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1375                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1376                 return (EINVAL);
1377         }
1378
1379         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1380                 SCTP_INP_RLOCK(inp);
1381                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1382                 SCTP_INP_RUNLOCK(inp);
1383         }
1384         if (stcb) {
1385                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1386                 return (EALREADY);
1387         }
1388         SCTP_INP_INCR_REF(inp);
1389         SCTP_ASOC_CREATE_LOCK(inp);
1390         creat_lock_on = 1;
1391         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1392             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1393                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1394                 error = EFAULT;
1395                 goto out_now;
1396         }
1397         totaddrp = (unsigned int *)optval;
1398         totaddr = *totaddrp;
1399         sa = (struct sockaddr *)(totaddrp + 1);
1400         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1401         if ((stcb != NULL) || bad_addresses) {
1402                 /* Already have or am bring up an association */
1403                 SCTP_ASOC_CREATE_UNLOCK(inp);
1404                 creat_lock_on = 0;
1405                 if (stcb)
1406                         SCTP_TCB_UNLOCK(stcb);
1407                 if (bad_addresses == 0) {
1408                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1409                         error = EALREADY;
1410                 }
1411                 goto out_now;
1412         }
1413 #ifdef INET6
1414         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1415             (num_v6 > 0)) {
1416                 error = EINVAL;
1417                 goto out_now;
1418         }
1419         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1420             (num_v4 > 0)) {
1421                 struct in6pcb *inp6;
1422
1423                 inp6 = (struct in6pcb *)inp;
1424                 if (SCTP_IPV6_V6ONLY(inp6)) {
1425                         /*
1426                          * if IPV6_V6ONLY flag, ignore connections destined
1427                          * to a v4 addr or v4-mapped addr
1428                          */
1429                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1430                         error = EINVAL;
1431                         goto out_now;
1432                 }
1433         }
1434 #endif                          /* INET6 */
1435         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1436             SCTP_PCB_FLAGS_UNBOUND) {
1437                 /* Bind a ephemeral port */
1438                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1439                 if (error) {
1440                         goto out_now;
1441                 }
1442         }
1443
1444         /* FIX ME: do we want to pass in a vrf on the connect call? */
1445         vrf_id = inp->def_vrf_id;
1446
1447
1448         /* We are GOOD to go */
1449         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1450             inp->sctp_ep.pre_open_stream_count,
1451             inp->sctp_ep.port,
1452             (struct thread *)p
1453             );
1454         if (stcb == NULL) {
1455                 /* Gak! no memory */
1456                 goto out_now;
1457         }
1458         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1459                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1460                 /* Set the connected flag so we can queue data */
1461                 soisconnecting(so);
1462         }
1463         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1464         /* move to second address */
1465         switch (sa->sa_family) {
1466 #ifdef INET
1467         case AF_INET:
1468                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1469                 break;
1470 #endif
1471 #ifdef INET6
1472         case AF_INET6:
1473                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1474                 break;
1475 #endif
1476         default:
1477                 break;
1478         }
1479
1480         error = 0;
1481         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1482         /* Fill in the return id */
1483         if (error) {
1484                 goto out_now;
1485         }
1486         a_id = (sctp_assoc_t *)optval;
1487         *a_id = sctp_get_associd(stcb);
1488
1489         /* initialize authentication parameters for the assoc */
1490         sctp_initialize_auth_params(inp, stcb);
1491
1492         if (delay) {
1493                 /* doing delayed connection */
1494                 stcb->asoc.delayed_connection = 1;
1495                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1496         } else {
1497                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1498                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1499         }
1500         SCTP_TCB_UNLOCK(stcb);
1501 out_now:
1502         if (creat_lock_on) {
1503                 SCTP_ASOC_CREATE_UNLOCK(inp);
1504         }
1505         SCTP_INP_DECR_REF(inp);
1506         return (error);
1507 }
1508
1509 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1510         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1511             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1512                 SCTP_INP_RLOCK(inp); \
1513                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1514                 if (stcb) { \
1515                         SCTP_TCB_LOCK(stcb); \
1516                 } \
1517                 SCTP_INP_RUNLOCK(inp); \
1518         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1519                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1520                 if (stcb == NULL) { \
1521                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1522                         error = ENOENT; \
1523                         break; \
1524                 } \
1525         } else { \
1526                 stcb = NULL; \
1527         } \
1528 }
1529
1530
1531 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1532         if (size < sizeof(type)) { \
1533                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1534                 error = EINVAL; \
1535                 break; \
1536         } else { \
1537                 destp = (type *)srcp; \
1538         } \
1539 }
1540
1541 static int
1542 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1543     void *p)
1544 {
1545         struct sctp_inpcb *inp = NULL;
1546         int error, val = 0;
1547         struct sctp_tcb *stcb = NULL;
1548
1549         if (optval == NULL) {
1550                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1551                 return (EINVAL);
1552         }
1553
1554         inp = (struct sctp_inpcb *)so->so_pcb;
1555         if (inp == NULL) {
1556                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1557                 return EINVAL;
1558         }
1559         error = 0;
1560
1561         switch (optname) {
1562         case SCTP_NODELAY:
1563         case SCTP_AUTOCLOSE:
1564         case SCTP_EXPLICIT_EOR:
1565         case SCTP_AUTO_ASCONF:
1566         case SCTP_DISABLE_FRAGMENTS:
1567         case SCTP_I_WANT_MAPPED_V4_ADDR:
1568         case SCTP_USE_EXT_RCVINFO:
1569                 SCTP_INP_RLOCK(inp);
1570                 switch (optname) {
1571                 case SCTP_DISABLE_FRAGMENTS:
1572                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1573                         break;
1574                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1575                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1576                         break;
1577                 case SCTP_AUTO_ASCONF:
1578                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1579                                 /* only valid for bound all sockets */
1580                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1581                         } else {
1582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1583                                 error = EINVAL;
1584                                 goto flags_out;
1585                         }
1586                         break;
1587                 case SCTP_EXPLICIT_EOR:
1588                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1589                         break;
1590                 case SCTP_NODELAY:
1591                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1592                         break;
1593                 case SCTP_USE_EXT_RCVINFO:
1594                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1595                         break;
1596                 case SCTP_AUTOCLOSE:
1597                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1598                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1599                         else
1600                                 val = 0;
1601                         break;
1602
1603                 default:
1604                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1605                         error = ENOPROTOOPT;
1606                 }               /* end switch (sopt->sopt_name) */
1607                 if (*optsize < sizeof(val)) {
1608                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1609                         error = EINVAL;
1610                 }
1611 flags_out:
1612                 SCTP_INP_RUNLOCK(inp);
1613                 if (error == 0) {
1614                         /* return the option value */
1615                         *(int *)optval = val;
1616                         *optsize = sizeof(val);
1617                 }
1618                 break;
1619         case SCTP_GET_PACKET_LOG:
1620                 {
1621 #ifdef  SCTP_PACKET_LOGGING
1622                         uint8_t *target;
1623                         int ret;
1624
1625                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1626                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1627                         *optsize = ret;
1628 #else
1629                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1630                         error = EOPNOTSUPP;
1631 #endif
1632                         break;
1633                 }
1634         case SCTP_REUSE_PORT:
1635                 {
1636                         uint32_t *value;
1637
1638                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1639                                 /* Can't do this for a 1-m socket */
1640                                 error = EINVAL;
1641                                 break;
1642                         }
1643                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1644                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1645                         *optsize = sizeof(uint32_t);
1646                         break;
1647                 }
1648         case SCTP_PARTIAL_DELIVERY_POINT:
1649                 {
1650                         uint32_t *value;
1651
1652                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1653                         *value = inp->partial_delivery_point;
1654                         *optsize = sizeof(uint32_t);
1655                         break;
1656                 }
1657         case SCTP_FRAGMENT_INTERLEAVE:
1658                 {
1659                         uint32_t *value;
1660
1661                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1662                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1663                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1664                                         *value = SCTP_FRAG_LEVEL_2;
1665                                 } else {
1666                                         *value = SCTP_FRAG_LEVEL_1;
1667                                 }
1668                         } else {
1669                                 *value = SCTP_FRAG_LEVEL_0;
1670                         }
1671                         *optsize = sizeof(uint32_t);
1672                         break;
1673                 }
1674         case SCTP_INTERLEAVING_SUPPORTED:
1675                 {
1676                         struct sctp_assoc_value *av;
1677
1678                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1679                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1680
1681                         if (stcb) {
1682                                 av->assoc_value = stcb->asoc.idata_supported;
1683                                 SCTP_TCB_UNLOCK(stcb);
1684                         } else {
1685                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1686                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1687                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1688                                         SCTP_INP_RLOCK(inp);
1689                                         if (inp->idata_supported) {
1690                                                 av->assoc_value = 1;
1691                                         } else {
1692                                                 av->assoc_value = 0;
1693                                         }
1694                                         SCTP_INP_RUNLOCK(inp);
1695                                 } else {
1696                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1697                                         error = EINVAL;
1698                                 }
1699                         }
1700                         if (error == 0) {
1701                                 *optsize = sizeof(struct sctp_assoc_value);
1702                         }
1703                         break;
1704                 }
1705         case SCTP_CMT_ON_OFF:
1706                 {
1707                         struct sctp_assoc_value *av;
1708
1709                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1710                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1711                         if (stcb) {
1712                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1713                                 SCTP_TCB_UNLOCK(stcb);
1714                         } else {
1715                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1716                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1717                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1718                                         SCTP_INP_RLOCK(inp);
1719                                         av->assoc_value = inp->sctp_cmt_on_off;
1720                                         SCTP_INP_RUNLOCK(inp);
1721                                 } else {
1722                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1723                                         error = EINVAL;
1724                                 }
1725                         }
1726                         if (error == 0) {
1727                                 *optsize = sizeof(struct sctp_assoc_value);
1728                         }
1729                         break;
1730                 }
1731         case SCTP_PLUGGABLE_CC:
1732                 {
1733                         struct sctp_assoc_value *av;
1734
1735                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1736                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1737                         if (stcb) {
1738                                 av->assoc_value = stcb->asoc.congestion_control_module;
1739                                 SCTP_TCB_UNLOCK(stcb);
1740                         } else {
1741                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1742                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1743                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1744                                         SCTP_INP_RLOCK(inp);
1745                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1746                                         SCTP_INP_RUNLOCK(inp);
1747                                 } else {
1748                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1749                                         error = EINVAL;
1750                                 }
1751                         }
1752                         if (error == 0) {
1753                                 *optsize = sizeof(struct sctp_assoc_value);
1754                         }
1755                         break;
1756                 }
1757         case SCTP_CC_OPTION:
1758                 {
1759                         struct sctp_cc_option *cc_opt;
1760
1761                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1762                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1763                         if (stcb == NULL) {
1764                                 error = EINVAL;
1765                         } else {
1766                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1767                                         error = ENOTSUP;
1768                                 } else {
1769                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1770                                         *optsize = sizeof(struct sctp_cc_option);
1771                                 }
1772                                 SCTP_TCB_UNLOCK(stcb);
1773                         }
1774                         break;
1775                 }
1776         case SCTP_PLUGGABLE_SS:
1777                 {
1778                         struct sctp_assoc_value *av;
1779
1780                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1781                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1782                         if (stcb) {
1783                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1784                                 SCTP_TCB_UNLOCK(stcb);
1785                         } else {
1786                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1787                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1788                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1789                                         SCTP_INP_RLOCK(inp);
1790                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1791                                         SCTP_INP_RUNLOCK(inp);
1792                                 } else {
1793                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1794                                         error = EINVAL;
1795                                 }
1796                         }
1797                         if (error == 0) {
1798                                 *optsize = sizeof(struct sctp_assoc_value);
1799                         }
1800                         break;
1801                 }
1802         case SCTP_SS_VALUE:
1803                 {
1804                         struct sctp_stream_value *av;
1805
1806                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1807                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1808                         if (stcb) {
1809                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1810                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1811                                     &av->stream_value) < 0)) {
1812                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1813                                         error = EINVAL;
1814                                 } else {
1815                                         *optsize = sizeof(struct sctp_stream_value);
1816                                 }
1817                                 SCTP_TCB_UNLOCK(stcb);
1818                         } else {
1819                                 /*
1820                                  * Can't get stream value without
1821                                  * association
1822                                  */
1823                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1824                                 error = EINVAL;
1825                         }
1826                         break;
1827                 }
1828         case SCTP_GET_ADDR_LEN:
1829                 {
1830                         struct sctp_assoc_value *av;
1831
1832                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1833                         error = EINVAL;
1834 #ifdef INET
1835                         if (av->assoc_value == AF_INET) {
1836                                 av->assoc_value = sizeof(struct sockaddr_in);
1837                                 error = 0;
1838                         }
1839 #endif
1840 #ifdef INET6
1841                         if (av->assoc_value == AF_INET6) {
1842                                 av->assoc_value = sizeof(struct sockaddr_in6);
1843                                 error = 0;
1844                         }
1845 #endif
1846                         if (error) {
1847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1848                         } else {
1849                                 *optsize = sizeof(struct sctp_assoc_value);
1850                         }
1851                         break;
1852                 }
1853         case SCTP_GET_ASSOC_NUMBER:
1854                 {
1855                         uint32_t *value, cnt;
1856
1857                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1858                         SCTP_INP_RLOCK(inp);
1859                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1860                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1861                                 /* Can't do this for a 1-1 socket */
1862                                 error = EINVAL;
1863                                 SCTP_INP_RUNLOCK(inp);
1864                                 break;
1865                         }
1866                         cnt = 0;
1867                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1868                                 cnt++;
1869                         }
1870                         SCTP_INP_RUNLOCK(inp);
1871                         *value = cnt;
1872                         *optsize = sizeof(uint32_t);
1873                         break;
1874                 }
1875         case SCTP_GET_ASSOC_ID_LIST:
1876                 {
1877                         struct sctp_assoc_ids *ids;
1878                         uint32_t at;
1879                         size_t limit;
1880
1881                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1882                         SCTP_INP_RLOCK(inp);
1883                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1884                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1885                                 /* Can't do this for a 1-1 socket */
1886                                 error = EINVAL;
1887                                 SCTP_INP_RUNLOCK(inp);
1888                                 break;
1889                         }
1890                         at = 0;
1891                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1892                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1893                                 if (at < limit) {
1894                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1895                                         if (at == 0) {
1896                                                 error = EINVAL;
1897                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1898                                                 break;
1899                                         }
1900                                 } else {
1901                                         error = EINVAL;
1902                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1903                                         break;
1904                                 }
1905                         }
1906                         SCTP_INP_RUNLOCK(inp);
1907                         if (error == 0) {
1908                                 ids->gaids_number_of_ids = at;
1909                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1910                         }
1911                         break;
1912                 }
1913         case SCTP_CONTEXT:
1914                 {
1915                         struct sctp_assoc_value *av;
1916
1917                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1918                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1919
1920                         if (stcb) {
1921                                 av->assoc_value = stcb->asoc.context;
1922                                 SCTP_TCB_UNLOCK(stcb);
1923                         } else {
1924                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1925                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1926                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1927                                         SCTP_INP_RLOCK(inp);
1928                                         av->assoc_value = inp->sctp_context;
1929                                         SCTP_INP_RUNLOCK(inp);
1930                                 } else {
1931                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1932                                         error = EINVAL;
1933                                 }
1934                         }
1935                         if (error == 0) {
1936                                 *optsize = sizeof(struct sctp_assoc_value);
1937                         }
1938                         break;
1939                 }
1940         case SCTP_VRF_ID:
1941                 {
1942                         uint32_t *default_vrfid;
1943
1944                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1945                         *default_vrfid = inp->def_vrf_id;
1946                         *optsize = sizeof(uint32_t);
1947                         break;
1948                 }
1949         case SCTP_GET_ASOC_VRF:
1950                 {
1951                         struct sctp_assoc_value *id;
1952
1953                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1954                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1955                         if (stcb == NULL) {
1956                                 error = EINVAL;
1957                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1958                         } else {
1959                                 id->assoc_value = stcb->asoc.vrf_id;
1960                                 SCTP_TCB_UNLOCK(stcb);
1961                                 *optsize = sizeof(struct sctp_assoc_value);
1962                         }
1963                         break;
1964                 }
1965         case SCTP_GET_VRF_IDS:
1966                 {
1967                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1968                         error = EOPNOTSUPP;
1969                         break;
1970                 }
1971         case SCTP_GET_NONCE_VALUES:
1972                 {
1973                         struct sctp_get_nonce_values *gnv;
1974
1975                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1976                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1977
1978                         if (stcb) {
1979                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1980                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1981                                 SCTP_TCB_UNLOCK(stcb);
1982                                 *optsize = sizeof(struct sctp_get_nonce_values);
1983                         } else {
1984                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1985                                 error = ENOTCONN;
1986                         }
1987                         break;
1988                 }
1989         case SCTP_DELAYED_SACK:
1990                 {
1991                         struct sctp_sack_info *sack;
1992
1993                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1994                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1995                         if (stcb) {
1996                                 sack->sack_delay = stcb->asoc.delayed_ack;
1997                                 sack->sack_freq = stcb->asoc.sack_freq;
1998                                 SCTP_TCB_UNLOCK(stcb);
1999                         } else {
2000                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2001                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2002                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2003                                         SCTP_INP_RLOCK(inp);
2004                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2005                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2006                                         SCTP_INP_RUNLOCK(inp);
2007                                 } else {
2008                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2009                                         error = EINVAL;
2010                                 }
2011                         }
2012                         if (error == 0) {
2013                                 *optsize = sizeof(struct sctp_sack_info);
2014                         }
2015                         break;
2016                 }
2017         case SCTP_GET_SNDBUF_USE:
2018                 {
2019                         struct sctp_sockstat *ss;
2020
2021                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2022                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2023
2024                         if (stcb) {
2025                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2026                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2027                                     stcb->asoc.size_on_all_streams);
2028                                 SCTP_TCB_UNLOCK(stcb);
2029                                 *optsize = sizeof(struct sctp_sockstat);
2030                         } else {
2031                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2032                                 error = ENOTCONN;
2033                         }
2034                         break;
2035                 }
2036         case SCTP_MAX_BURST:
2037                 {
2038                         struct sctp_assoc_value *av;
2039
2040                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2041                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2042
2043                         if (stcb) {
2044                                 av->assoc_value = stcb->asoc.max_burst;
2045                                 SCTP_TCB_UNLOCK(stcb);
2046                         } else {
2047                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2048                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2049                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2050                                         SCTP_INP_RLOCK(inp);
2051                                         av->assoc_value = inp->sctp_ep.max_burst;
2052                                         SCTP_INP_RUNLOCK(inp);
2053                                 } else {
2054                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2055                                         error = EINVAL;
2056                                 }
2057                         }
2058                         if (error == 0) {
2059                                 *optsize = sizeof(struct sctp_assoc_value);
2060                         }
2061                         break;
2062                 }
2063         case SCTP_MAXSEG:
2064                 {
2065                         struct sctp_assoc_value *av;
2066                         int ovh;
2067
2068                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2069                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2070
2071                         if (stcb) {
2072                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2073                                 SCTP_TCB_UNLOCK(stcb);
2074                         } else {
2075                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2076                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2077                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2078                                         SCTP_INP_RLOCK(inp);
2079                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2080                                                 ovh = SCTP_MED_OVERHEAD;
2081                                         } else {
2082                                                 ovh = SCTP_MED_V4_OVERHEAD;
2083                                         }
2084                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2085                                                 av->assoc_value = 0;
2086                                         else
2087                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2088                                         SCTP_INP_RUNLOCK(inp);
2089                                 } else {
2090                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2091                                         error = EINVAL;
2092                                 }
2093                         }
2094                         if (error == 0) {
2095                                 *optsize = sizeof(struct sctp_assoc_value);
2096                         }
2097                         break;
2098                 }
2099         case SCTP_GET_STAT_LOG:
2100                 error = sctp_fill_stat_log(optval, optsize);
2101                 break;
2102         case SCTP_EVENTS:
2103                 {
2104                         struct sctp_event_subscribe *events;
2105
2106                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2107                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2108                         SCTP_INP_RLOCK(inp);
2109                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2110                                 events->sctp_data_io_event = 1;
2111
2112                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2113                                 events->sctp_association_event = 1;
2114
2115                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2116                                 events->sctp_address_event = 1;
2117
2118                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2119                                 events->sctp_send_failure_event = 1;
2120
2121                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2122                                 events->sctp_peer_error_event = 1;
2123
2124                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2125                                 events->sctp_shutdown_event = 1;
2126
2127                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2128                                 events->sctp_partial_delivery_event = 1;
2129
2130                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2131                                 events->sctp_adaptation_layer_event = 1;
2132
2133                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2134                                 events->sctp_authentication_event = 1;
2135
2136                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2137                                 events->sctp_sender_dry_event = 1;
2138
2139                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2140                                 events->sctp_stream_reset_event = 1;
2141                         SCTP_INP_RUNLOCK(inp);
2142                         *optsize = sizeof(struct sctp_event_subscribe);
2143                         break;
2144                 }
2145         case SCTP_ADAPTATION_LAYER:
2146                 {
2147                         uint32_t *value;
2148
2149                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2150
2151                         SCTP_INP_RLOCK(inp);
2152                         *value = inp->sctp_ep.adaptation_layer_indicator;
2153                         SCTP_INP_RUNLOCK(inp);
2154                         *optsize = sizeof(uint32_t);
2155                         break;
2156                 }
2157         case SCTP_SET_INITIAL_DBG_SEQ:
2158                 {
2159                         uint32_t *value;
2160
2161                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2162                         SCTP_INP_RLOCK(inp);
2163                         *value = inp->sctp_ep.initial_sequence_debug;
2164                         SCTP_INP_RUNLOCK(inp);
2165                         *optsize = sizeof(uint32_t);
2166                         break;
2167                 }
2168         case SCTP_GET_LOCAL_ADDR_SIZE:
2169                 {
2170                         uint32_t *value;
2171
2172                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2173                         SCTP_INP_RLOCK(inp);
2174                         *value = sctp_count_max_addresses(inp);
2175                         SCTP_INP_RUNLOCK(inp);
2176                         *optsize = sizeof(uint32_t);
2177                         break;
2178                 }
2179         case SCTP_GET_REMOTE_ADDR_SIZE:
2180                 {
2181                         uint32_t *value;
2182                         size_t size;
2183                         struct sctp_nets *net;
2184
2185                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2186                         /* FIXME MT: change to sctp_assoc_value? */
2187                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2188
2189                         if (stcb) {
2190                                 size = 0;
2191                                 /* Count the sizes */
2192                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2193                                         switch (net->ro._l_addr.sa.sa_family) {
2194 #ifdef INET
2195                                         case AF_INET:
2196 #ifdef INET6
2197                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2198                                                         size += sizeof(struct sockaddr_in6);
2199                                                 } else {
2200                                                         size += sizeof(struct sockaddr_in);
2201                                                 }
2202 #else
2203                                                 size += sizeof(struct sockaddr_in);
2204 #endif
2205                                                 break;
2206 #endif
2207 #ifdef INET6
2208                                         case AF_INET6:
2209                                                 size += sizeof(struct sockaddr_in6);
2210                                                 break;
2211 #endif
2212                                         default:
2213                                                 break;
2214                                         }
2215                                 }
2216                                 SCTP_TCB_UNLOCK(stcb);
2217                                 *value = (uint32_t)size;
2218                                 *optsize = sizeof(uint32_t);
2219                         } else {
2220                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2221                                 error = ENOTCONN;
2222                         }
2223                         break;
2224                 }
2225         case SCTP_GET_PEER_ADDRESSES:
2226                 /*
2227                  * Get the address information, an array is passed in to
2228                  * fill up we pack it.
2229                  */
2230                 {
2231                         size_t cpsz, left;
2232                         struct sockaddr_storage *sas;
2233                         struct sctp_nets *net;
2234                         struct sctp_getaddresses *saddr;
2235
2236                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2237                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2238
2239                         if (stcb) {
2240                                 left = (*optsize) - sizeof(sctp_assoc_t);
2241                                 *optsize = sizeof(sctp_assoc_t);
2242                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2243
2244                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2245                                         switch (net->ro._l_addr.sa.sa_family) {
2246 #ifdef INET
2247                                         case AF_INET:
2248 #ifdef INET6
2249                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2250                                                         cpsz = sizeof(struct sockaddr_in6);
2251                                                 } else {
2252                                                         cpsz = sizeof(struct sockaddr_in);
2253                                                 }
2254 #else
2255                                                 cpsz = sizeof(struct sockaddr_in);
2256 #endif
2257                                                 break;
2258 #endif
2259 #ifdef INET6
2260                                         case AF_INET6:
2261                                                 cpsz = sizeof(struct sockaddr_in6);
2262                                                 break;
2263 #endif
2264                                         default:
2265                                                 cpsz = 0;
2266                                                 break;
2267                                         }
2268                                         if (cpsz == 0) {
2269                                                 break;
2270                                         }
2271                                         if (left < cpsz) {
2272                                                 /* not enough room. */
2273                                                 break;
2274                                         }
2275 #if defined(INET) && defined(INET6)
2276                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2277                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2278                                                 /* Must map the address */
2279                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2280                                                     (struct sockaddr_in6 *)sas);
2281                                         } else {
2282                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2283                                         }
2284 #else
2285                                         memcpy(sas, &net->ro._l_addr, cpsz);
2286 #endif
2287                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2288
2289                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2290                                         left -= cpsz;
2291                                         *optsize += cpsz;
2292                                 }
2293                                 SCTP_TCB_UNLOCK(stcb);
2294                         } else {
2295                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2296                                 error = ENOENT;
2297                         }
2298                         break;
2299                 }
2300         case SCTP_GET_LOCAL_ADDRESSES:
2301                 {
2302                         size_t limit, actual;
2303                         struct sockaddr_storage *sas;
2304                         struct sctp_getaddresses *saddr;
2305
2306                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2307                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2308
2309                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2310                         limit = *optsize - sizeof(sctp_assoc_t);
2311                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2312                         if (stcb) {
2313                                 SCTP_TCB_UNLOCK(stcb);
2314                         }
2315                         *optsize = sizeof(sctp_assoc_t) + actual;
2316                         break;
2317                 }
2318         case SCTP_PEER_ADDR_PARAMS:
2319                 {
2320                         struct sctp_paddrparams *paddrp;
2321                         struct sctp_nets *net;
2322                         struct sockaddr *addr;
2323 #if defined(INET) && defined(INET6)
2324                         struct sockaddr_in sin_store;
2325 #endif
2326
2327                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2328                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2329
2330 #if defined(INET) && defined(INET6)
2331                         if (paddrp->spp_address.ss_family == AF_INET6) {
2332                                 struct sockaddr_in6 *sin6;
2333
2334                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2335                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2336                                         in6_sin6_2_sin(&sin_store, sin6);
2337                                         addr = (struct sockaddr *)&sin_store;
2338                                 } else {
2339                                         addr = (struct sockaddr *)&paddrp->spp_address;
2340                                 }
2341                         } else {
2342                                 addr = (struct sockaddr *)&paddrp->spp_address;
2343                         }
2344 #else
2345                         addr = (struct sockaddr *)&paddrp->spp_address;
2346 #endif
2347                         if (stcb != NULL) {
2348                                 net = sctp_findnet(stcb, addr);
2349                         } else {
2350                                 /*
2351                                  * We increment here since
2352                                  * sctp_findassociation_ep_addr() wil do a
2353                                  * decrement if it finds the stcb as long as
2354                                  * the locked tcb (last argument) is NOT a
2355                                  * TCB.. aka NULL.
2356                                  */
2357                                 net = NULL;
2358                                 SCTP_INP_INCR_REF(inp);
2359                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2360                                 if (stcb == NULL) {
2361                                         SCTP_INP_DECR_REF(inp);
2362                                 }
2363                         }
2364                         if ((stcb != NULL) && (net == NULL)) {
2365 #ifdef INET
2366                                 if (addr->sa_family == AF_INET) {
2367                                         struct sockaddr_in *sin;
2368
2369                                         sin = (struct sockaddr_in *)addr;
2370                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2371                                                 error = EINVAL;
2372                                                 SCTP_TCB_UNLOCK(stcb);
2373                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2374                                                 break;
2375                                         }
2376                                 } else
2377 #endif
2378 #ifdef INET6
2379                                 if (addr->sa_family == AF_INET6) {
2380                                         struct sockaddr_in6 *sin6;
2381
2382                                         sin6 = (struct sockaddr_in6 *)addr;
2383                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2384                                                 error = EINVAL;
2385                                                 SCTP_TCB_UNLOCK(stcb);
2386                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2387                                                 break;
2388                                         }
2389                                 } else
2390 #endif
2391                                 {
2392                                         error = EAFNOSUPPORT;
2393                                         SCTP_TCB_UNLOCK(stcb);
2394                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2395                                         break;
2396                                 }
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_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 = stcb->asoc.default_mtu;
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                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2497
2498                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2499                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2500                                         } else {
2501                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2502                                         }
2503                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2504                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2505                                         } else {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2507                                         }
2508                                         SCTP_INP_RUNLOCK(inp);
2509                                 } else {
2510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2511                                         error = EINVAL;
2512                                 }
2513                         }
2514                         if (error == 0) {
2515                                 *optsize = sizeof(struct sctp_paddrparams);
2516                         }
2517                         break;
2518                 }
2519         case SCTP_GET_PEER_ADDR_INFO:
2520                 {
2521                         struct sctp_paddrinfo *paddri;
2522                         struct sctp_nets *net;
2523                         struct sockaddr *addr;
2524 #if defined(INET) && defined(INET6)
2525                         struct sockaddr_in sin_store;
2526 #endif
2527
2528                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2529                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2530
2531 #if defined(INET) && defined(INET6)
2532                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2533                                 struct sockaddr_in6 *sin6;
2534
2535                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2536                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2537                                         in6_sin6_2_sin(&sin_store, sin6);
2538                                         addr = (struct sockaddr *)&sin_store;
2539                                 } else {
2540                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2541                                 }
2542                         } else {
2543                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2544                         }
2545 #else
2546                         addr = (struct sockaddr *)&paddri->spinfo_address;
2547 #endif
2548                         if (stcb != NULL) {
2549                                 net = sctp_findnet(stcb, addr);
2550                         } else {
2551                                 /*
2552                                  * We increment here since
2553                                  * sctp_findassociation_ep_addr() wil do a
2554                                  * decrement if it finds the stcb as long as
2555                                  * the locked tcb (last argument) is NOT a
2556                                  * TCB.. aka NULL.
2557                                  */
2558                                 net = NULL;
2559                                 SCTP_INP_INCR_REF(inp);
2560                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2561                                 if (stcb == NULL) {
2562                                         SCTP_INP_DECR_REF(inp);
2563                                 }
2564                         }
2565
2566                         if ((stcb != NULL) && (net != NULL)) {
2567                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2568                                         /* It's unconfirmed */
2569                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2570                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2571                                         /* It's active */
2572                                         paddri->spinfo_state = SCTP_ACTIVE;
2573                                 } else {
2574                                         /* It's inactive */
2575                                         paddri->spinfo_state = SCTP_INACTIVE;
2576                                 }
2577                                 paddri->spinfo_cwnd = net->cwnd;
2578                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2579                                 paddri->spinfo_rto = net->RTO;
2580                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2581                                 paddri->spinfo_mtu = net->mtu;
2582                                 switch (addr->sa_family) {
2583 #if defined(INET)
2584                                 case AF_INET:
2585                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2586                                         break;
2587 #endif
2588 #if defined(INET6)
2589                                 case AF_INET6:
2590                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2591                                         break;
2592 #endif
2593                                 default:
2594                                         break;
2595                                 }
2596                                 SCTP_TCB_UNLOCK(stcb);
2597                                 *optsize = sizeof(struct sctp_paddrinfo);
2598                         } else {
2599                                 if (stcb != NULL) {
2600                                         SCTP_TCB_UNLOCK(stcb);
2601                                 }
2602                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2603                                 error = ENOENT;
2604                         }
2605                         break;
2606                 }
2607         case SCTP_PCB_STATUS:
2608                 {
2609                         struct sctp_pcbinfo *spcb;
2610
2611                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2612                         sctp_fill_pcbinfo(spcb);
2613                         *optsize = sizeof(struct sctp_pcbinfo);
2614                         break;
2615                 }
2616         case SCTP_STATUS:
2617                 {
2618                         struct sctp_nets *net;
2619                         struct sctp_status *sstat;
2620
2621                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2622                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2623
2624                         if (stcb == NULL) {
2625                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2626                                 error = EINVAL;
2627                                 break;
2628                         }
2629                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2630                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2631                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2632                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2633                         /*
2634                          * We can't include chunks that have been passed to
2635                          * the socket layer. Only things in queue.
2636                          */
2637                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2638                             stcb->asoc.cnt_on_all_streams);
2639
2640
2641                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2642                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2643                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2644                         net = stcb->asoc.primary_destination;
2645                         if (net != NULL) {
2646                                 memcpy(&sstat->sstat_primary.spinfo_address,
2647                                     &stcb->asoc.primary_destination->ro._l_addr,
2648                                     ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2649                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2650                                 /*
2651                                  * Again the user can get info from
2652                                  * sctp_constants.h for what the state of
2653                                  * the network is.
2654                                  */
2655                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2656                                         /* It's unconfirmed */
2657                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2658                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2659                                         /* It's active */
2660                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2661                                 } else {
2662                                         /* It's inactive */
2663                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2664                                 }
2665                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2666                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2667                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2668                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2669                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2670 #if defined(INET)
2671                                 case AF_INET:
2672                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2673                                         break;
2674 #endif
2675 #if defined(INET6)
2676                                 case AF_INET6:
2677                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2678                                         break;
2679 #endif
2680                                 default:
2681                                         break;
2682                                 }
2683                         } else {
2684                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2685                         }
2686                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2687                         SCTP_TCB_UNLOCK(stcb);
2688                         *optsize = sizeof(struct sctp_status);
2689                         break;
2690                 }
2691         case SCTP_RTOINFO:
2692                 {
2693                         struct sctp_rtoinfo *srto;
2694
2695                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2696                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2697
2698                         if (stcb) {
2699                                 srto->srto_initial = stcb->asoc.initial_rto;
2700                                 srto->srto_max = stcb->asoc.maxrto;
2701                                 srto->srto_min = stcb->asoc.minrto;
2702                                 SCTP_TCB_UNLOCK(stcb);
2703                         } else {
2704                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2705                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2706                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2707                                         SCTP_INP_RLOCK(inp);
2708                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2709                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2710                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2711                                         SCTP_INP_RUNLOCK(inp);
2712                                 } else {
2713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2714                                         error = EINVAL;
2715                                 }
2716                         }
2717                         if (error == 0) {
2718                                 *optsize = sizeof(struct sctp_rtoinfo);
2719                         }
2720                         break;
2721                 }
2722         case SCTP_TIMEOUTS:
2723                 {
2724                         struct sctp_timeouts *stimo;
2725
2726                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2727                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2728
2729                         if (stcb) {
2730                                 stimo->stimo_init = stcb->asoc.timoinit;
2731                                 stimo->stimo_data = stcb->asoc.timodata;
2732                                 stimo->stimo_sack = stcb->asoc.timosack;
2733                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2734                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2735                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2736                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2737                                 SCTP_TCB_UNLOCK(stcb);
2738                                 *optsize = sizeof(struct sctp_timeouts);
2739                         } else {
2740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2741                                 error = EINVAL;
2742                         }
2743                         break;
2744                 }
2745         case SCTP_ASSOCINFO:
2746                 {
2747                         struct sctp_assocparams *sasoc;
2748
2749                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2750                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2751
2752                         if (stcb) {
2753                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2754                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2755                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2756                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2757                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2758                                 SCTP_TCB_UNLOCK(stcb);
2759                         } else {
2760                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2761                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2762                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2763                                         SCTP_INP_RLOCK(inp);
2764                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2765                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2766                                         sasoc->sasoc_number_peer_destinations = 0;
2767                                         sasoc->sasoc_peer_rwnd = 0;
2768                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2769                                         SCTP_INP_RUNLOCK(inp);
2770                                 } else {
2771                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2772                                         error = EINVAL;
2773                                 }
2774                         }
2775                         if (error == 0) {
2776                                 *optsize = sizeof(struct sctp_assocparams);
2777                         }
2778                         break;
2779                 }
2780         case SCTP_DEFAULT_SEND_PARAM:
2781                 {
2782                         struct sctp_sndrcvinfo *s_info;
2783
2784                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2785                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2786
2787                         if (stcb) {
2788                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2789                                 SCTP_TCB_UNLOCK(stcb);
2790                         } else {
2791                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2792                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2793                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2794                                         SCTP_INP_RLOCK(inp);
2795                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2796                                         SCTP_INP_RUNLOCK(inp);
2797                                 } else {
2798                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2799                                         error = EINVAL;
2800                                 }
2801                         }
2802                         if (error == 0) {
2803                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2804                         }
2805                         break;
2806                 }
2807         case SCTP_INITMSG:
2808                 {
2809                         struct sctp_initmsg *sinit;
2810
2811                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2812                         SCTP_INP_RLOCK(inp);
2813                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2814                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2815                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2816                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2817                         SCTP_INP_RUNLOCK(inp);
2818                         *optsize = sizeof(struct sctp_initmsg);
2819                         break;
2820                 }
2821         case SCTP_PRIMARY_ADDR:
2822                 /* we allow a "get" operation on this */
2823                 {
2824                         struct sctp_setprim *ssp;
2825
2826                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2827                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2828
2829                         if (stcb) {
2830                                 union sctp_sockstore *addr;
2831
2832                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2833                                 switch (addr->sa.sa_family) {
2834 #ifdef INET
2835                                 case AF_INET:
2836 #ifdef INET6
2837                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2838                                                 in6_sin_2_v4mapsin6(&addr->sin,
2839                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2840                                         } else {
2841                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2842                                         }
2843 #else
2844                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2845 #endif
2846                                         break;
2847 #endif
2848 #ifdef INET6
2849                                 case AF_INET6:
2850                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2851                                         break;
2852 #endif
2853                                 default:
2854                                         break;
2855                                 }
2856                                 SCTP_TCB_UNLOCK(stcb);
2857                                 *optsize = sizeof(struct sctp_setprim);
2858                         } else {
2859                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2860                                 error = EINVAL;
2861                         }
2862                         break;
2863                 }
2864         case SCTP_HMAC_IDENT:
2865                 {
2866                         struct sctp_hmacalgo *shmac;
2867                         sctp_hmaclist_t *hmaclist;
2868                         uint32_t size;
2869                         int i;
2870
2871                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2872
2873                         SCTP_INP_RLOCK(inp);
2874                         hmaclist = inp->sctp_ep.local_hmacs;
2875                         if (hmaclist == NULL) {
2876                                 /* no HMACs to return */
2877                                 *optsize = sizeof(*shmac);
2878                                 SCTP_INP_RUNLOCK(inp);
2879                                 break;
2880                         }
2881                         /* is there room for all of the hmac ids? */
2882                         size = sizeof(*shmac) + (hmaclist->num_algo *
2883                             sizeof(shmac->shmac_idents[0]));
2884                         if ((size_t)(*optsize) < size) {
2885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2886                                 error = EINVAL;
2887                                 SCTP_INP_RUNLOCK(inp);
2888                                 break;
2889                         }
2890                         /* copy in the list */
2891                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2892                         for (i = 0; i < hmaclist->num_algo; i++) {
2893                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2894                         }
2895                         SCTP_INP_RUNLOCK(inp);
2896                         *optsize = size;
2897                         break;
2898                 }
2899         case SCTP_AUTH_ACTIVE_KEY:
2900                 {
2901                         struct sctp_authkeyid *scact;
2902
2903                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2904                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2905
2906                         if (stcb) {
2907                                 /* get the active key on the assoc */
2908                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2909                                 SCTP_TCB_UNLOCK(stcb);
2910                         } else {
2911                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2912                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2913                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2914                                         /* get the endpoint active key */
2915                                         SCTP_INP_RLOCK(inp);
2916                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2917                                         SCTP_INP_RUNLOCK(inp);
2918                                 } else {
2919                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2920                                         error = EINVAL;
2921                                 }
2922                         }
2923                         if (error == 0) {
2924                                 *optsize = sizeof(struct sctp_authkeyid);
2925                         }
2926                         break;
2927                 }
2928         case SCTP_LOCAL_AUTH_CHUNKS:
2929                 {
2930                         struct sctp_authchunks *sac;
2931                         sctp_auth_chklist_t *chklist = NULL;
2932                         size_t size = 0;
2933
2934                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2935                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2936
2937                         if (stcb) {
2938                                 /* get off the assoc */
2939                                 chklist = stcb->asoc.local_auth_chunks;
2940                                 /* is there enough space? */
2941                                 size = sctp_auth_get_chklist_size(chklist);
2942                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2943                                         error = EINVAL;
2944                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2945                                 } else {
2946                                         /* copy in the chunks */
2947                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2948                                         sac->gauth_number_of_chunks = (uint32_t)size;
2949                                         *optsize = sizeof(struct sctp_authchunks) + size;
2950                                 }
2951                                 SCTP_TCB_UNLOCK(stcb);
2952                         } else {
2953                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2954                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2955                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2956                                         /* get off the endpoint */
2957                                         SCTP_INP_RLOCK(inp);
2958                                         chklist = inp->sctp_ep.local_auth_chunks;
2959                                         /* is there enough space? */
2960                                         size = sctp_auth_get_chklist_size(chklist);
2961                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2962                                                 error = EINVAL;
2963                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2964                                         } else {
2965                                                 /* copy in the chunks */
2966                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2967                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2968                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2969                                         }
2970                                         SCTP_INP_RUNLOCK(inp);
2971                                 } else {
2972                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2973                                         error = EINVAL;
2974                                 }
2975                         }
2976                         break;
2977                 }
2978         case SCTP_PEER_AUTH_CHUNKS:
2979                 {
2980                         struct sctp_authchunks *sac;
2981                         sctp_auth_chklist_t *chklist = NULL;
2982                         size_t size = 0;
2983
2984                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2985                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2986
2987                         if (stcb) {
2988                                 /* get off the assoc */
2989                                 chklist = stcb->asoc.peer_auth_chunks;
2990                                 /* is there enough space? */
2991                                 size = sctp_auth_get_chklist_size(chklist);
2992                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2993                                         error = EINVAL;
2994                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2995                                 } else {
2996                                         /* copy in the chunks */
2997                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2998                                         sac->gauth_number_of_chunks = (uint32_t)size;
2999                                         *optsize = sizeof(struct sctp_authchunks) + size;
3000                                 }
3001                                 SCTP_TCB_UNLOCK(stcb);
3002                         } else {
3003                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3004                                 error = ENOENT;
3005                         }
3006                         break;
3007                 }
3008         case SCTP_EVENT:
3009                 {
3010                         struct sctp_event *event;
3011                         uint32_t event_type;
3012
3013                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3014                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3015
3016                         switch (event->se_type) {
3017                         case SCTP_ASSOC_CHANGE:
3018                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3019                                 break;
3020                         case SCTP_PEER_ADDR_CHANGE:
3021                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3022                                 break;
3023                         case SCTP_REMOTE_ERROR:
3024                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3025                                 break;
3026                         case SCTP_SEND_FAILED:
3027                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3028                                 break;
3029                         case SCTP_SHUTDOWN_EVENT:
3030                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3031                                 break;
3032                         case SCTP_ADAPTATION_INDICATION:
3033                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3034                                 break;
3035                         case SCTP_PARTIAL_DELIVERY_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3037                                 break;
3038                         case SCTP_AUTHENTICATION_EVENT:
3039                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3040                                 break;
3041                         case SCTP_STREAM_RESET_EVENT:
3042                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3043                                 break;
3044                         case SCTP_SENDER_DRY_EVENT:
3045                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3046                                 break;
3047                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3048                                 event_type = 0;
3049                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3050                                 error = ENOTSUP;
3051                                 break;
3052                         case SCTP_ASSOC_RESET_EVENT:
3053                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3054                                 break;
3055                         case SCTP_STREAM_CHANGE_EVENT:
3056                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3057                                 break;
3058                         case SCTP_SEND_FAILED_EVENT:
3059                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3060                                 break;
3061                         default:
3062                                 event_type = 0;
3063                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3064                                 error = EINVAL;
3065                                 break;
3066                         }
3067                         if (event_type > 0) {
3068                                 if (stcb) {
3069                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3070                                 } else {
3071                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3072                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3073                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3074                                                 SCTP_INP_RLOCK(inp);
3075                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3076                                                 SCTP_INP_RUNLOCK(inp);
3077                                         } else {
3078                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3079                                                 error = EINVAL;
3080                                         }
3081                                 }
3082                         }
3083                         if (stcb != NULL) {
3084                                 SCTP_TCB_UNLOCK(stcb);
3085                         }
3086                         if (error == 0) {
3087                                 *optsize = sizeof(struct sctp_event);
3088                         }
3089                         break;
3090                 }
3091         case SCTP_RECVRCVINFO:
3092                 {
3093                         int onoff;
3094
3095                         if (*optsize < sizeof(int)) {
3096                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3097                                 error = EINVAL;
3098                         } else {
3099                                 SCTP_INP_RLOCK(inp);
3100                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3101                                 SCTP_INP_RUNLOCK(inp);
3102                         }
3103                         if (error == 0) {
3104                                 /* return the option value */
3105                                 *(int *)optval = onoff;
3106                                 *optsize = sizeof(int);
3107                         }
3108                         break;
3109                 }
3110         case SCTP_RECVNXTINFO:
3111                 {
3112                         int onoff;
3113
3114                         if (*optsize < sizeof(int)) {
3115                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3116                                 error = EINVAL;
3117                         } else {
3118                                 SCTP_INP_RLOCK(inp);
3119                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3120                                 SCTP_INP_RUNLOCK(inp);
3121                         }
3122                         if (error == 0) {
3123                                 /* return the option value */
3124                                 *(int *)optval = onoff;
3125                                 *optsize = sizeof(int);
3126                         }
3127                         break;
3128                 }
3129         case SCTP_DEFAULT_SNDINFO:
3130                 {
3131                         struct sctp_sndinfo *info;
3132
3133                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3134                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3135
3136                         if (stcb) {
3137                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3138                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3139                                 info->snd_flags &= 0xfff0;
3140                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3141                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3142                                 SCTP_TCB_UNLOCK(stcb);
3143                         } else {
3144                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3145                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3146                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3147                                         SCTP_INP_RLOCK(inp);
3148                                         info->snd_sid = inp->def_send.sinfo_stream;
3149                                         info->snd_flags = inp->def_send.sinfo_flags;
3150                                         info->snd_flags &= 0xfff0;
3151                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3152                                         info->snd_context = inp->def_send.sinfo_context;
3153                                         SCTP_INP_RUNLOCK(inp);
3154                                 } else {
3155                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3156                                         error = EINVAL;
3157                                 }
3158                         }
3159                         if (error == 0) {
3160                                 *optsize = sizeof(struct sctp_sndinfo);
3161                         }
3162                         break;
3163                 }
3164         case SCTP_DEFAULT_PRINFO:
3165                 {
3166                         struct sctp_default_prinfo *info;
3167
3168                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3169                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3170
3171                         if (stcb) {
3172                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3173                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3174                                 SCTP_TCB_UNLOCK(stcb);
3175                         } else {
3176                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3177                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3178                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3179                                         SCTP_INP_RLOCK(inp);
3180                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3181                                         info->pr_value = inp->def_send.sinfo_timetolive;
3182                                         SCTP_INP_RUNLOCK(inp);
3183                                 } else {
3184                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3185                                         error = EINVAL;
3186                                 }
3187                         }
3188                         if (error == 0) {
3189                                 *optsize = sizeof(struct sctp_default_prinfo);
3190                         }
3191                         break;
3192                 }
3193         case SCTP_PEER_ADDR_THLDS:
3194                 {
3195                         struct sctp_paddrthlds *thlds;
3196                         struct sctp_nets *net;
3197                         struct sockaddr *addr;
3198 #if defined(INET) && defined(INET6)
3199                         struct sockaddr_in sin_store;
3200 #endif
3201
3202                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3203                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3204
3205 #if defined(INET) && defined(INET6)
3206                         if (thlds->spt_address.ss_family == AF_INET6) {
3207                                 struct sockaddr_in6 *sin6;
3208
3209                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3210                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3211                                         in6_sin6_2_sin(&sin_store, sin6);
3212                                         addr = (struct sockaddr *)&sin_store;
3213                                 } else {
3214                                         addr = (struct sockaddr *)&thlds->spt_address;
3215                                 }
3216                         } else {
3217                                 addr = (struct sockaddr *)&thlds->spt_address;
3218                         }
3219 #else
3220                         addr = (struct sockaddr *)&thlds->spt_address;
3221 #endif
3222                         if (stcb != NULL) {
3223                                 net = sctp_findnet(stcb, addr);
3224                         } else {
3225                                 /*
3226                                  * We increment here since
3227                                  * sctp_findassociation_ep_addr() wil do a
3228                                  * decrement if it finds the stcb as long as
3229                                  * the locked tcb (last argument) is NOT a
3230                                  * TCB.. aka NULL.
3231                                  */
3232                                 net = NULL;
3233                                 SCTP_INP_INCR_REF(inp);
3234                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3235                                 if (stcb == NULL) {
3236                                         SCTP_INP_DECR_REF(inp);
3237                                 }
3238                         }
3239                         if ((stcb != NULL) && (net == NULL)) {
3240 #ifdef INET
3241                                 if (addr->sa_family == AF_INET) {
3242                                         struct sockaddr_in *sin;
3243
3244                                         sin = (struct sockaddr_in *)addr;
3245                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3246                                                 error = EINVAL;
3247                                                 SCTP_TCB_UNLOCK(stcb);
3248                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3249                                                 break;
3250                                         }
3251                                 } else
3252 #endif
3253 #ifdef INET6
3254                                 if (addr->sa_family == AF_INET6) {
3255                                         struct sockaddr_in6 *sin6;
3256
3257                                         sin6 = (struct sockaddr_in6 *)addr;
3258                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3259                                                 error = EINVAL;
3260                                                 SCTP_TCB_UNLOCK(stcb);
3261                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3262                                                 break;
3263                                         }
3264                                 } else
3265 #endif
3266                                 {
3267                                         error = EAFNOSUPPORT;
3268                                         SCTP_TCB_UNLOCK(stcb);
3269                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3270                                         break;
3271                                 }
3272                         }
3273
3274                         if (stcb != NULL) {
3275                                 if (net != NULL) {
3276                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3277                                         thlds->spt_pathpfthld = net->pf_threshold;
3278                                         thlds->spt_pathcpthld = 0xffff;
3279                                 } else {
3280                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3281                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3282                                         thlds->spt_pathcpthld = 0xffff;
3283                                 }
3284                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3285                                 SCTP_TCB_UNLOCK(stcb);
3286                         } else {
3287                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3288                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3289                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3290                                         /* Use endpoint defaults */
3291                                         SCTP_INP_RLOCK(inp);
3292                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3293                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3294                                         thlds->spt_pathcpthld = 0xffff;
3295                                         SCTP_INP_RUNLOCK(inp);
3296                                 } else {
3297                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3298                                         error = EINVAL;
3299                                 }
3300                         }
3301                         if (error == 0) {
3302                                 *optsize = sizeof(struct sctp_paddrthlds);
3303                         }
3304                         break;
3305                 }
3306         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3307                 {
3308                         struct sctp_udpencaps *encaps;
3309                         struct sctp_nets *net;
3310                         struct sockaddr *addr;
3311 #if defined(INET) && defined(INET6)
3312                         struct sockaddr_in sin_store;
3313 #endif
3314
3315                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3316                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3317
3318 #if defined(INET) && defined(INET6)
3319                         if (encaps->sue_address.ss_family == AF_INET6) {
3320                                 struct sockaddr_in6 *sin6;
3321
3322                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3323                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3324                                         in6_sin6_2_sin(&sin_store, sin6);
3325                                         addr = (struct sockaddr *)&sin_store;
3326                                 } else {
3327                                         addr = (struct sockaddr *)&encaps->sue_address;
3328                                 }
3329                         } else {
3330                                 addr = (struct sockaddr *)&encaps->sue_address;
3331                         }
3332 #else
3333                         addr = (struct sockaddr *)&encaps->sue_address;
3334 #endif
3335                         if (stcb) {
3336                                 net = sctp_findnet(stcb, addr);
3337                         } else {
3338                                 /*
3339                                  * We increment here since
3340                                  * sctp_findassociation_ep_addr() wil do a
3341                                  * decrement if it finds the stcb as long as
3342                                  * the locked tcb (last argument) is NOT a
3343                                  * TCB.. aka NULL.
3344                                  */
3345                                 net = NULL;
3346                                 SCTP_INP_INCR_REF(inp);
3347                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3348                                 if (stcb == NULL) {
3349                                         SCTP_INP_DECR_REF(inp);
3350                                 }
3351                         }
3352                         if ((stcb != NULL) && (net == NULL)) {
3353 #ifdef INET
3354                                 if (addr->sa_family == AF_INET) {
3355                                         struct sockaddr_in *sin;
3356
3357                                         sin = (struct sockaddr_in *)addr;
3358                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3359                                                 error = EINVAL;
3360                                                 SCTP_TCB_UNLOCK(stcb);
3361                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3362                                                 break;
3363                                         }
3364                                 } else
3365 #endif
3366 #ifdef INET6
3367                                 if (addr->sa_family == AF_INET6) {
3368                                         struct sockaddr_in6 *sin6;
3369
3370                                         sin6 = (struct sockaddr_in6 *)addr;
3371                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3372                                                 error = EINVAL;
3373                                                 SCTP_TCB_UNLOCK(stcb);
3374                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3375                                                 break;
3376                                         }
3377                                 } else
3378 #endif
3379                                 {
3380                                         error = EAFNOSUPPORT;
3381                                         SCTP_TCB_UNLOCK(stcb);
3382                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3383                                         break;
3384                                 }
3385                         }
3386
3387                         if (stcb != NULL) {
3388                                 if (net) {
3389                                         encaps->sue_port = net->port;
3390                                 } else {
3391                                         encaps->sue_port = stcb->asoc.port;
3392                                 }
3393                                 SCTP_TCB_UNLOCK(stcb);
3394                         } else {
3395                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3396                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3397                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3398                                         SCTP_INP_RLOCK(inp);
3399                                         encaps->sue_port = inp->sctp_ep.port;
3400                                         SCTP_INP_RUNLOCK(inp);
3401                                 } else {
3402                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3403                                         error = EINVAL;
3404                                 }
3405                         }
3406                         if (error == 0) {
3407                                 *optsize = sizeof(struct sctp_udpencaps);
3408                         }
3409                         break;
3410                 }
3411         case SCTP_ECN_SUPPORTED:
3412                 {
3413                         struct sctp_assoc_value *av;
3414
3415                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3416                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3417
3418                         if (stcb) {
3419                                 av->assoc_value = stcb->asoc.ecn_supported;
3420                                 SCTP_TCB_UNLOCK(stcb);
3421                         } else {
3422                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3423                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3424                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3425                                         SCTP_INP_RLOCK(inp);
3426                                         av->assoc_value = inp->ecn_supported;
3427                                         SCTP_INP_RUNLOCK(inp);
3428                                 } else {
3429                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3430                                         error = EINVAL;
3431                                 }
3432                         }
3433                         if (error == 0) {
3434                                 *optsize = sizeof(struct sctp_assoc_value);
3435                         }
3436                         break;
3437                 }
3438         case SCTP_PR_SUPPORTED:
3439                 {
3440                         struct sctp_assoc_value *av;
3441
3442                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3443                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3444
3445                         if (stcb) {
3446                                 av->assoc_value = stcb->asoc.prsctp_supported;
3447                                 SCTP_TCB_UNLOCK(stcb);
3448                         } else {
3449                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3450                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3451                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3452                                         SCTP_INP_RLOCK(inp);
3453                                         av->assoc_value = inp->prsctp_supported;
3454                                         SCTP_INP_RUNLOCK(inp);
3455                                 } else {
3456                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3457                                         error = EINVAL;
3458                                 }
3459                         }
3460                         if (error == 0) {
3461                                 *optsize = sizeof(struct sctp_assoc_value);
3462                         }
3463                         break;
3464                 }
3465         case SCTP_AUTH_SUPPORTED:
3466                 {
3467                         struct sctp_assoc_value *av;
3468
3469                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3470                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3471
3472                         if (stcb) {
3473                                 av->assoc_value = stcb->asoc.auth_supported;
3474                                 SCTP_TCB_UNLOCK(stcb);
3475                         } else {
3476                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3477                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3478                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3479                                         SCTP_INP_RLOCK(inp);
3480                                         av->assoc_value = inp->auth_supported;
3481                                         SCTP_INP_RUNLOCK(inp);
3482                                 } else {
3483                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3484                                         error = EINVAL;
3485                                 }
3486                         }
3487                         if (error == 0) {
3488                                 *optsize = sizeof(struct sctp_assoc_value);
3489                         }
3490                         break;
3491                 }
3492         case SCTP_ASCONF_SUPPORTED:
3493                 {
3494                         struct sctp_assoc_value *av;
3495
3496                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3497                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3498
3499                         if (stcb) {
3500                                 av->assoc_value = stcb->asoc.asconf_supported;
3501                                 SCTP_TCB_UNLOCK(stcb);
3502                         } else {
3503                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3504                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3505                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3506                                         SCTP_INP_RLOCK(inp);
3507                                         av->assoc_value = inp->asconf_supported;
3508                                         SCTP_INP_RUNLOCK(inp);
3509                                 } else {
3510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3511                                         error = EINVAL;
3512                                 }
3513                         }
3514                         if (error == 0) {
3515                                 *optsize = sizeof(struct sctp_assoc_value);
3516                         }
3517                         break;
3518                 }
3519         case SCTP_RECONFIG_SUPPORTED:
3520                 {
3521                         struct sctp_assoc_value *av;
3522
3523                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3524                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3525
3526                         if (stcb) {
3527                                 av->assoc_value = stcb->asoc.reconfig_supported;
3528                                 SCTP_TCB_UNLOCK(stcb);
3529                         } else {
3530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3532                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3533                                         SCTP_INP_RLOCK(inp);
3534                                         av->assoc_value = inp->reconfig_supported;
3535                                         SCTP_INP_RUNLOCK(inp);
3536                                 } else {
3537                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3538                                         error = EINVAL;
3539                                 }
3540                         }
3541                         if (error == 0) {
3542                                 *optsize = sizeof(struct sctp_assoc_value);
3543                         }
3544                         break;
3545                 }
3546         case SCTP_NRSACK_SUPPORTED:
3547                 {
3548                         struct sctp_assoc_value *av;
3549
3550                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3551                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3552
3553                         if (stcb) {
3554                                 av->assoc_value = stcb->asoc.nrsack_supported;
3555                                 SCTP_TCB_UNLOCK(stcb);
3556                         } else {
3557                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3558                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3559                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3560                                         SCTP_INP_RLOCK(inp);
3561                                         av->assoc_value = inp->nrsack_supported;
3562                                         SCTP_INP_RUNLOCK(inp);
3563                                 } else {
3564                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3565                                         error = EINVAL;
3566                                 }
3567                         }
3568                         if (error == 0) {
3569                                 *optsize = sizeof(struct sctp_assoc_value);
3570                         }
3571                         break;
3572                 }
3573         case SCTP_PKTDROP_SUPPORTED:
3574                 {
3575                         struct sctp_assoc_value *av;
3576
3577                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3578                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3579
3580                         if (stcb) {
3581                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3582                                 SCTP_TCB_UNLOCK(stcb);
3583                         } else {
3584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3586                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3587                                         SCTP_INP_RLOCK(inp);
3588                                         av->assoc_value = inp->pktdrop_supported;
3589                                         SCTP_INP_RUNLOCK(inp);
3590                                 } else {
3591                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3592                                         error = EINVAL;
3593                                 }
3594                         }
3595                         if (error == 0) {
3596                                 *optsize = sizeof(struct sctp_assoc_value);
3597                         }
3598                         break;
3599                 }
3600         case SCTP_ENABLE_STREAM_RESET:
3601                 {
3602                         struct sctp_assoc_value *av;
3603
3604                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3605                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3606
3607                         if (stcb) {
3608                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3609                                 SCTP_TCB_UNLOCK(stcb);
3610                         } else {
3611                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3612                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3613                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3614                                         SCTP_INP_RLOCK(inp);
3615                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3616                                         SCTP_INP_RUNLOCK(inp);
3617                                 } else {
3618                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3619                                         error = EINVAL;
3620                                 }
3621                         }
3622                         if (error == 0) {
3623                                 *optsize = sizeof(struct sctp_assoc_value);
3624                         }
3625                         break;
3626                 }
3627         case SCTP_PR_STREAM_STATUS:
3628                 {
3629                         struct sctp_prstatus *sprstat;
3630                         uint16_t sid;
3631                         uint16_t policy;
3632
3633                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3634                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3635
3636                         sid = sprstat->sprstat_sid;
3637                         policy = sprstat->sprstat_policy;
3638 #if defined(SCTP_DETAILED_STR_STATS)
3639                         if ((stcb != NULL) &&
3640                             (sid < stcb->asoc.streamoutcnt) &&
3641                             (policy != SCTP_PR_SCTP_NONE) &&
3642                             ((policy <= SCTP_PR_SCTP_MAX) ||
3643                             (policy == SCTP_PR_SCTP_ALL))) {
3644                                 if (policy == SCTP_PR_SCTP_ALL) {
3645                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3646                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3647                                 } else {
3648                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3649                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3650                                 }
3651 #else
3652                         if ((stcb != NULL) &&
3653                             (sid < stcb->asoc.streamoutcnt) &&
3654                             (policy == SCTP_PR_SCTP_ALL)) {
3655                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3656                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3657 #endif
3658                         } else {
3659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3660                                 error = EINVAL;
3661                         }
3662                         if (stcb != NULL) {
3663                                 SCTP_TCB_UNLOCK(stcb);
3664                         }
3665                         if (error == 0) {
3666                                 *optsize = sizeof(struct sctp_prstatus);
3667                         }
3668                         break;
3669                 }
3670         case SCTP_PR_ASSOC_STATUS:
3671                 {
3672                         struct sctp_prstatus *sprstat;
3673                         uint16_t policy;
3674
3675                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3676                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3677
3678                         policy = sprstat->sprstat_policy;
3679                         if ((stcb != NULL) &&
3680                             (policy != SCTP_PR_SCTP_NONE) &&
3681                             ((policy <= SCTP_PR_SCTP_MAX) ||
3682                             (policy == SCTP_PR_SCTP_ALL))) {
3683                                 if (policy == SCTP_PR_SCTP_ALL) {
3684                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3685                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3686                                 } else {
3687                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3688                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3689                                 }
3690                         } else {
3691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3692                                 error = EINVAL;
3693                         }
3694                         if (stcb != NULL) {
3695                                 SCTP_TCB_UNLOCK(stcb);
3696                         }
3697                         if (error == 0) {
3698                                 *optsize = sizeof(struct sctp_prstatus);
3699                         }
3700                         break;
3701                 }
3702         case SCTP_MAX_CWND:
3703                 {
3704                         struct sctp_assoc_value *av;
3705
3706                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3707                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3708
3709                         if (stcb) {
3710                                 av->assoc_value = stcb->asoc.max_cwnd;
3711                                 SCTP_TCB_UNLOCK(stcb);
3712                         } else {
3713                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3714                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3715                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3716                                         SCTP_INP_RLOCK(inp);
3717                                         av->assoc_value = inp->max_cwnd;
3718                                         SCTP_INP_RUNLOCK(inp);
3719                                 } else {
3720                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3721                                         error = EINVAL;
3722                                 }
3723                         }
3724                         if (error == 0) {
3725                                 *optsize = sizeof(struct sctp_assoc_value);
3726                         }
3727                         break;
3728                 }
3729         default:
3730                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3731                 error = ENOPROTOOPT;
3732                 break;
3733         }                       /* end switch (sopt->sopt_name) */
3734         if (error) {
3735                 *optsize = 0;
3736         }
3737         return (error);
3738 }
3739
3740 static int
3741 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3742     void *p)
3743 {
3744         int error, set_opt;
3745         uint32_t *mopt;
3746         struct sctp_tcb *stcb = NULL;
3747         struct sctp_inpcb *inp = NULL;
3748         uint32_t vrf_id;
3749
3750         if (optval == NULL) {
3751                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3752                 return (EINVAL);
3753         }
3754         inp = (struct sctp_inpcb *)so->so_pcb;
3755         if (inp == NULL) {
3756                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3757                 return (EINVAL);
3758         }
3759         vrf_id = inp->def_vrf_id;
3760
3761         error = 0;
3762         switch (optname) {
3763         case SCTP_NODELAY:
3764         case SCTP_AUTOCLOSE:
3765         case SCTP_AUTO_ASCONF:
3766         case SCTP_EXPLICIT_EOR:
3767         case SCTP_DISABLE_FRAGMENTS:
3768         case SCTP_USE_EXT_RCVINFO:
3769         case SCTP_I_WANT_MAPPED_V4_ADDR:
3770                 /* copy in the option value */
3771                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3772                 set_opt = 0;
3773                 if (error)
3774                         break;
3775                 switch (optname) {
3776                 case SCTP_DISABLE_FRAGMENTS:
3777                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3778                         break;
3779                 case SCTP_AUTO_ASCONF:
3780                         /*
3781                          * NOTE: we don't really support this flag
3782                          */
3783                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3784                                 /* only valid for bound all sockets */
3785                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3786                                     (*mopt != 0)) {
3787                                         /* forbidden by admin */
3788                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3789                                         return (EPERM);
3790                                 }
3791                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3792                         } else {
3793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3794                                 return (EINVAL);
3795                         }
3796                         break;
3797                 case SCTP_EXPLICIT_EOR:
3798                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3799                         break;
3800                 case SCTP_USE_EXT_RCVINFO:
3801                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3802                         break;
3803                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3804                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3805                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3806                         } else {
3807                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3808                                 return (EINVAL);
3809                         }
3810                         break;
3811                 case SCTP_NODELAY:
3812                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3813                         break;
3814                 case SCTP_AUTOCLOSE:
3815                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3816                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3818                                 return (EINVAL);
3819                         }
3820                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3821                         /*
3822                          * The value is in ticks. Note this does not effect
3823                          * old associations, only new ones.
3824                          */
3825                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3826                         break;
3827                 }
3828                 SCTP_INP_WLOCK(inp);
3829                 if (*mopt != 0) {
3830                         sctp_feature_on(inp, set_opt);
3831                 } else {
3832                         sctp_feature_off(inp, set_opt);
3833                 }
3834                 SCTP_INP_WUNLOCK(inp);
3835                 break;
3836         case SCTP_REUSE_PORT:
3837                 {
3838                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3839                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3840                                 /* Can't set it after we are bound */
3841                                 error = EINVAL;
3842                                 break;
3843                         }
3844                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3845                                 /* Can't do this for a 1-m socket */
3846                                 error = EINVAL;
3847                                 break;
3848                         }
3849                         if (optval)
3850                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3851                         else
3852                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3853                         break;
3854                 }
3855         case SCTP_PARTIAL_DELIVERY_POINT:
3856                 {
3857                         uint32_t *value;
3858
3859                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3860                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3862                                 error = EINVAL;
3863                                 break;
3864                         }
3865                         inp->partial_delivery_point = *value;
3866                         break;
3867                 }
3868         case SCTP_FRAGMENT_INTERLEAVE:
3869                 /* not yet until we re-write sctp_recvmsg() */
3870                 {
3871                         uint32_t *level;
3872
3873                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3874                         if (*level == SCTP_FRAG_LEVEL_2) {
3875                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3876                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3877                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3878                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3879                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3880                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3881                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3882                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3883
3884                         } else {
3885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3886                                 error = EINVAL;
3887                         }
3888                         break;
3889                 }
3890         case SCTP_INTERLEAVING_SUPPORTED:
3891                 {
3892                         struct sctp_assoc_value *av;
3893
3894                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3895                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3896
3897                         if (stcb) {
3898                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3899                                 error = EINVAL;
3900                                 SCTP_TCB_UNLOCK(stcb);
3901                         } else {
3902                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3903                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3904                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3905                                         SCTP_INP_WLOCK(inp);
3906                                         if (av->assoc_value == 0) {
3907                                                 inp->idata_supported = 0;
3908                                         } else {
3909                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3910                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3911                                                         inp->idata_supported = 1;
3912                                                 } else {
3913                                                         /*
3914                                                          * Must have Frag
3915                                                          * interleave and
3916                                                          * stream interleave
3917                                                          * on
3918                                                          */
3919                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3920                                                         error = EINVAL;
3921                                                 }
3922                                         }
3923                                         SCTP_INP_WUNLOCK(inp);
3924                                 } else {
3925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3926                                         error = EINVAL;
3927                                 }
3928                         }
3929                         break;
3930                 }
3931         case SCTP_CMT_ON_OFF:
3932                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3933                         struct sctp_assoc_value *av;
3934
3935                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3936                         if (av->assoc_value > SCTP_CMT_MAX) {
3937                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3938                                 error = EINVAL;
3939                                 break;
3940                         }
3941                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3942                         if (stcb) {
3943                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3944                                 SCTP_TCB_UNLOCK(stcb);
3945                         } else {
3946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3948                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3949                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3950                                         SCTP_INP_WLOCK(inp);
3951                                         inp->sctp_cmt_on_off = av->assoc_value;
3952                                         SCTP_INP_WUNLOCK(inp);
3953                                 }
3954                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3955                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3956                                         SCTP_INP_RLOCK(inp);
3957                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3958                                                 SCTP_TCB_LOCK(stcb);
3959                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3960                                                 SCTP_TCB_UNLOCK(stcb);
3961                                         }
3962                                         SCTP_INP_RUNLOCK(inp);
3963                                 }
3964                         }
3965                 } else {
3966                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3967                         error = ENOPROTOOPT;
3968                 }
3969                 break;
3970         case SCTP_PLUGGABLE_CC:
3971                 {
3972                         struct sctp_assoc_value *av;
3973                         struct sctp_nets *net;
3974
3975                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3976                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3977                             (av->assoc_value != SCTP_CC_HSTCP) &&
3978                             (av->assoc_value != SCTP_CC_HTCP) &&
3979                             (av->assoc_value != SCTP_CC_RTCC)) {
3980                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3981                                 error = EINVAL;
3982                                 break;
3983                         }
3984                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3985                         if (stcb) {
3986                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3987                                 stcb->asoc.congestion_control_module = av->assoc_value;
3988                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3989                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3990                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3991                                         }
3992                                 }
3993                                 SCTP_TCB_UNLOCK(stcb);
3994                         } else {
3995                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3996                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3997                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3998                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3999                                         SCTP_INP_WLOCK(inp);
4000                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4001                                         SCTP_INP_WUNLOCK(inp);
4002                                 }
4003                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4004                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4005                                         SCTP_INP_RLOCK(inp);
4006                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4007                                                 SCTP_TCB_LOCK(stcb);
4008                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4009                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4010                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4011                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4012                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4013                                                         }
4014                                                 }
4015                                                 SCTP_TCB_UNLOCK(stcb);
4016                                         }
4017                                         SCTP_INP_RUNLOCK(inp);
4018                                 }
4019                         }
4020                         break;
4021                 }
4022         case SCTP_CC_OPTION:
4023                 {
4024                         struct sctp_cc_option *cc_opt;
4025
4026                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4027                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4028                         if (stcb == NULL) {
4029                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4030                                         SCTP_INP_RLOCK(inp);
4031                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4032                                                 SCTP_TCB_LOCK(stcb);
4033                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4034                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4035                                                 }
4036                                                 SCTP_TCB_UNLOCK(stcb);
4037                                         }
4038                                         SCTP_INP_RUNLOCK(inp);
4039                                 } else {
4040                                         error = EINVAL;
4041                                 }
4042                         } else {
4043                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4044                                         error = ENOTSUP;
4045                                 } else {
4046                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4047                                             cc_opt);
4048                                 }
4049                                 SCTP_TCB_UNLOCK(stcb);
4050                         }
4051                         break;
4052                 }
4053         case SCTP_PLUGGABLE_SS:
4054                 {
4055                         struct sctp_assoc_value *av;
4056
4057                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4058                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4059                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4060                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4061                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4062                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4063                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4064                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4065                                 error = EINVAL;
4066                                 break;
4067                         }
4068                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4069                         if (stcb) {
4070                                 SCTP_TCB_SEND_LOCK(stcb);
4071                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4072                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4073                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4074                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4075                                 SCTP_TCB_SEND_UNLOCK(stcb);
4076                                 SCTP_TCB_UNLOCK(stcb);
4077                         } else {
4078                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4079                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4080                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4081                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4082                                         SCTP_INP_WLOCK(inp);
4083                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4084                                         SCTP_INP_WUNLOCK(inp);
4085                                 }
4086                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4087                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4088                                         SCTP_INP_RLOCK(inp);
4089                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4090                                                 SCTP_TCB_LOCK(stcb);
4091                                                 SCTP_TCB_SEND_LOCK(stcb);
4092                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4093                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4094                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4095                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4096                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4097                                                 SCTP_TCB_UNLOCK(stcb);
4098                                         }
4099                                         SCTP_INP_RUNLOCK(inp);
4100                                 }
4101                         }
4102                         break;
4103                 }
4104         case SCTP_SS_VALUE:
4105                 {
4106                         struct sctp_stream_value *av;
4107
4108                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4109                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4110                         if (stcb) {
4111                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4112                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4113                                     av->stream_value) < 0)) {
4114                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4115                                         error = EINVAL;
4116                                 }
4117                                 SCTP_TCB_UNLOCK(stcb);
4118                         } else {
4119                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4120                                         SCTP_INP_RLOCK(inp);
4121                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4122                                                 SCTP_TCB_LOCK(stcb);
4123                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4124                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4125                                                             &stcb->asoc,
4126                                                             &stcb->asoc.strmout[av->stream_id],
4127                                                             av->stream_value);
4128                                                 }
4129                                                 SCTP_TCB_UNLOCK(stcb);
4130                                         }
4131                                         SCTP_INP_RUNLOCK(inp);
4132                                 } else {
4133                                         /*
4134                                          * Can't set stream value without
4135                                          * association
4136                                          */
4137                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4138                                         error = EINVAL;
4139                                 }
4140                         }
4141                         break;
4142                 }
4143         case SCTP_CLR_STAT_LOG:
4144                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4145                 error = EOPNOTSUPP;
4146                 break;
4147         case SCTP_CONTEXT:
4148                 {
4149                         struct sctp_assoc_value *av;
4150
4151                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4152                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4153
4154                         if (stcb) {
4155                                 stcb->asoc.context = av->assoc_value;
4156                                 SCTP_TCB_UNLOCK(stcb);
4157                         } else {
4158                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4159                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4160                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4161                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4162                                         SCTP_INP_WLOCK(inp);
4163                                         inp->sctp_context = av->assoc_value;
4164                                         SCTP_INP_WUNLOCK(inp);
4165                                 }
4166                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4167                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4168                                         SCTP_INP_RLOCK(inp);
4169                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4170                                                 SCTP_TCB_LOCK(stcb);
4171                                                 stcb->asoc.context = av->assoc_value;
4172                                                 SCTP_TCB_UNLOCK(stcb);
4173                                         }
4174                                         SCTP_INP_RUNLOCK(inp);
4175                                 }
4176                         }
4177                         break;
4178                 }
4179         case SCTP_VRF_ID:
4180                 {
4181                         uint32_t *default_vrfid;
4182
4183                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4184                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4185                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4186                                 error = EINVAL;
4187                                 break;
4188                         }
4189                         inp->def_vrf_id = *default_vrfid;
4190                         break;
4191                 }
4192         case SCTP_DEL_VRF_ID:
4193                 {
4194                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4195                         error = EOPNOTSUPP;
4196                         break;
4197                 }
4198         case SCTP_ADD_VRF_ID:
4199                 {
4200                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4201                         error = EOPNOTSUPP;
4202                         break;
4203                 }
4204         case SCTP_DELAYED_SACK:
4205                 {
4206                         struct sctp_sack_info *sack;
4207
4208                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4209                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4210                         if (sack->sack_delay) {
4211                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4212                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4213                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4214                                         sack->sack_delay = TICKS_TO_MSEC(1);
4215                                 }
4216                         }
4217                         if (stcb) {
4218                                 if (sack->sack_delay) {
4219                                         stcb->asoc.delayed_ack = sack->sack_delay;
4220                                 }
4221                                 if (sack->sack_freq) {
4222                                         stcb->asoc.sack_freq = sack->sack_freq;
4223                                 }
4224                                 SCTP_TCB_UNLOCK(stcb);
4225                         } else {
4226                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4227                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4228                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4229                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4230                                         SCTP_INP_WLOCK(inp);
4231                                         if (sack->sack_delay) {
4232                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4233                                         }
4234                                         if (sack->sack_freq) {
4235                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4236                                         }
4237                                         SCTP_INP_WUNLOCK(inp);
4238                                 }
4239                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4240                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4241                                         SCTP_INP_RLOCK(inp);
4242                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4243                                                 SCTP_TCB_LOCK(stcb);
4244                                                 if (sack->sack_delay) {
4245                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4246                                                 }
4247                                                 if (sack->sack_freq) {
4248                                                         stcb->asoc.sack_freq = sack->sack_freq;
4249                                                 }
4250                                                 SCTP_TCB_UNLOCK(stcb);
4251                                         }
4252                                         SCTP_INP_RUNLOCK(inp);
4253                                 }
4254                         }
4255                         break;
4256                 }
4257         case SCTP_AUTH_CHUNK:
4258                 {
4259                         struct sctp_authchunk *sauth;
4260
4261                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4262
4263                         SCTP_INP_WLOCK(inp);
4264                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4266                                 error = EINVAL;
4267                         } else {
4268                                 inp->auth_supported = 1;
4269                         }
4270                         SCTP_INP_WUNLOCK(inp);
4271                         break;
4272                 }
4273         case SCTP_AUTH_KEY:
4274                 {
4275                         struct sctp_authkey *sca;
4276                         struct sctp_keyhead *shared_keys;
4277                         sctp_sharedkey_t *shared_key;
4278                         sctp_key_t *key = NULL;
4279                         size_t size;
4280
4281                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4282                         if (sca->sca_keylength == 0) {
4283                                 size = optsize - sizeof(struct sctp_authkey);
4284                         } else {
4285                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4286                                         size = sca->sca_keylength;
4287                                 } else {
4288                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4289                                         error = EINVAL;
4290                                         break;
4291                                 }
4292                         }
4293                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4294
4295                         if (stcb) {
4296                                 shared_keys = &stcb->asoc.shared_keys;
4297                                 /* clear the cached keys for this key id */
4298                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4299                                 /*
4300                                  * create the new shared key and
4301                                  * insert/replace it
4302                                  */
4303                                 if (size > 0) {
4304                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4305                                         if (key == NULL) {
4306                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4307                                                 error = ENOMEM;
4308                                                 SCTP_TCB_UNLOCK(stcb);
4309                                                 break;
4310                                         }
4311                                 }
4312                                 shared_key = sctp_alloc_sharedkey();
4313                                 if (shared_key == NULL) {
4314                                         sctp_free_key(key);
4315                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4316                                         error = ENOMEM;
4317                                         SCTP_TCB_UNLOCK(stcb);
4318                                         break;
4319                                 }
4320                                 shared_key->key = key;
4321                                 shared_key->keyid = sca->sca_keynumber;
4322                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4323                                 SCTP_TCB_UNLOCK(stcb);
4324                         } else {
4325                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4326                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4327                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4328                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4329                                         SCTP_INP_WLOCK(inp);
4330                                         shared_keys = &inp->sctp_ep.shared_keys;
4331                                         /*
4332                                          * clear the cached keys on all
4333                                          * assocs for this key id
4334                                          */
4335                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4336                                         /*
4337                                          * create the new shared key and
4338                                          * insert/replace it
4339                                          */
4340                                         if (size > 0) {
4341                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4342                                                 if (key == NULL) {
4343                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4344                                                         error = ENOMEM;
4345                                                         SCTP_INP_WUNLOCK(inp);
4346                                                         break;
4347                                                 }
4348                                         }
4349                                         shared_key = sctp_alloc_sharedkey();
4350                                         if (shared_key == NULL) {
4351                                                 sctp_free_key(key);
4352                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4353                                                 error = ENOMEM;
4354                                                 SCTP_INP_WUNLOCK(inp);
4355                                                 break;
4356                                         }
4357                                         shared_key->key = key;
4358                                         shared_key->keyid = sca->sca_keynumber;
4359                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4360                                         SCTP_INP_WUNLOCK(inp);
4361                                 }
4362                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4363                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4364                                         SCTP_INP_RLOCK(inp);
4365                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4366                                                 SCTP_TCB_LOCK(stcb);
4367                                                 shared_keys = &stcb->asoc.shared_keys;
4368                                                 /*
4369                                                  * clear the cached keys for
4370                                                  * this key id
4371                                                  */
4372                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4373                                                 /*
4374                                                  * create the new shared key
4375                                                  * and insert/replace it
4376                                                  */
4377                                                 if (size > 0) {
4378                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4379                                                         if (key == NULL) {
4380                                                                 SCTP_TCB_UNLOCK(stcb);
4381                                                                 continue;
4382                                                         }
4383                                                 }
4384                                                 shared_key = sctp_alloc_sharedkey();
4385                                                 if (shared_key == NULL) {
4386                                                         sctp_free_key(key);
4387                                                         SCTP_TCB_UNLOCK(stcb);
4388                                                         continue;
4389                                                 }
4390                                                 shared_key->key = key;
4391                                                 shared_key->keyid = sca->sca_keynumber;
4392                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4393                                                 SCTP_TCB_UNLOCK(stcb);
4394                                         }
4395                                         SCTP_INP_RUNLOCK(inp);
4396                                 }
4397                         }
4398                         break;
4399                 }
4400         case SCTP_HMAC_IDENT:
4401                 {
4402                         struct sctp_hmacalgo *shmac;
4403                         sctp_hmaclist_t *hmaclist;
4404                         uint16_t hmacid;
4405                         uint32_t i;
4406
4407                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4408                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4409                             (shmac->shmac_number_of_idents > 0xffff)) {
4410                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4411                                 error = EINVAL;
4412                                 break;
4413                         }
4414
4415                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4416                         if (hmaclist == NULL) {
4417                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4418                                 error = ENOMEM;
4419                                 break;
4420                         }
4421                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4422                                 hmacid = shmac->shmac_idents[i];
4423                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4424                                          /* invalid HMACs were found */ ;
4425                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4426                                         error = EINVAL;
4427                                         sctp_free_hmaclist(hmaclist);
4428                                         goto sctp_set_hmac_done;
4429                                 }
4430                         }
4431                         for (i = 0; i < hmaclist->num_algo; i++) {
4432                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4433                                         /* already in list */
4434                                         break;
4435                                 }
4436                         }
4437                         if (i == hmaclist->num_algo) {
4438                                 /* not found in list */
4439                                 sctp_free_hmaclist(hmaclist);
4440                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4441                                 error = EINVAL;
4442                                 break;
4443                         }
4444                         /* set it on the endpoint */
4445                         SCTP_INP_WLOCK(inp);
4446                         if (inp->sctp_ep.local_hmacs)
4447                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4448                         inp->sctp_ep.local_hmacs = hmaclist;
4449                         SCTP_INP_WUNLOCK(inp);
4450         sctp_set_hmac_done:
4451                         break;
4452                 }
4453         case SCTP_AUTH_ACTIVE_KEY:
4454                 {
4455                         struct sctp_authkeyid *scact;
4456
4457                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4458                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4459
4460                         /* set the active key on the right place */
4461                         if (stcb) {
4462                                 /* set the active key on the assoc */
4463                                 if (sctp_auth_setactivekey(stcb,
4464                                     scact->scact_keynumber)) {
4465                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4466                                             SCTP_FROM_SCTP_USRREQ,
4467                                             EINVAL);
4468                                         error = EINVAL;
4469                                 }
4470                                 SCTP_TCB_UNLOCK(stcb);
4471                         } else {
4472                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4473                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4474                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4475                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4476                                         SCTP_INP_WLOCK(inp);
4477                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4478                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4479                                                 error = EINVAL;
4480                                         }
4481                                         SCTP_INP_WUNLOCK(inp);
4482                                 }
4483                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4484                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4485                                         SCTP_INP_RLOCK(inp);
4486                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4487                                                 SCTP_TCB_LOCK(stcb);
4488                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4489                                                 SCTP_TCB_UNLOCK(stcb);
4490                                         }
4491                                         SCTP_INP_RUNLOCK(inp);
4492                                 }
4493                         }
4494                         break;
4495                 }
4496         case SCTP_AUTH_DELETE_KEY:
4497                 {
4498                         struct sctp_authkeyid *scdel;
4499
4500                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4501                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4502
4503                         /* delete the key from the right place */
4504                         if (stcb) {
4505                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4506                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4507                                         error = EINVAL;
4508                                 }
4509                                 SCTP_TCB_UNLOCK(stcb);
4510                         } else {
4511                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4512                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4513                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4514                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4515                                         SCTP_INP_WLOCK(inp);
4516                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4517                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4518                                                 error = EINVAL;
4519                                         }
4520                                         SCTP_INP_WUNLOCK(inp);
4521                                 }
4522                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4523                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4524                                         SCTP_INP_RLOCK(inp);
4525                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4526                                                 SCTP_TCB_LOCK(stcb);
4527                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4528                                                 SCTP_TCB_UNLOCK(stcb);
4529                                         }
4530                                         SCTP_INP_RUNLOCK(inp);
4531                                 }
4532                         }
4533                         break;
4534                 }
4535         case SCTP_AUTH_DEACTIVATE_KEY:
4536                 {
4537                         struct sctp_authkeyid *keyid;
4538
4539                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4540                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4541
4542                         /* deactivate the key from the right place */
4543                         if (stcb) {
4544                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4545                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4546                                         error = EINVAL;
4547                                 }
4548                                 SCTP_TCB_UNLOCK(stcb);
4549                         } else {
4550                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4551                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4552                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4553                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4554                                         SCTP_INP_WLOCK(inp);
4555                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4556                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4557                                                 error = EINVAL;
4558                                         }
4559                                         SCTP_INP_WUNLOCK(inp);
4560                                 }
4561                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4562                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4563                                         SCTP_INP_RLOCK(inp);
4564                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4565                                                 SCTP_TCB_LOCK(stcb);
4566                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4567                                                 SCTP_TCB_UNLOCK(stcb);
4568                                         }
4569                                         SCTP_INP_RUNLOCK(inp);
4570                                 }
4571                         }
4572                         break;
4573                 }
4574         case SCTP_ENABLE_STREAM_RESET:
4575                 {
4576                         struct sctp_assoc_value *av;
4577
4578                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4579                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4580                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4581                                 error = EINVAL;
4582                                 break;
4583                         }
4584                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4585                         if (stcb) {
4586                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4587                                 SCTP_TCB_UNLOCK(stcb);
4588                         } else {
4589                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4590                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4591                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4592                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4593                                         SCTP_INP_WLOCK(inp);
4594                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4595                                         SCTP_INP_WUNLOCK(inp);
4596                                 }
4597                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4598                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4599                                         SCTP_INP_RLOCK(inp);
4600                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4601                                                 SCTP_TCB_LOCK(stcb);
4602                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4603                                                 SCTP_TCB_UNLOCK(stcb);
4604                                         }
4605                                         SCTP_INP_RUNLOCK(inp);
4606                                 }
4607
4608                         }
4609                         break;
4610                 }
4611         case SCTP_RESET_STREAMS:
4612                 {
4613                         struct sctp_reset_streams *strrst;
4614                         int i, send_out = 0;
4615                         int send_in = 0;
4616
4617                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4618                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4619                         if (stcb == NULL) {
4620                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4621                                 error = ENOENT;
4622                                 break;
4623                         }
4624                         if (stcb->asoc.reconfig_supported == 0) {
4625                                 /*
4626                                  * Peer does not support the chunk type.
4627                                  */
4628                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4629                                 error = EOPNOTSUPP;
4630                                 SCTP_TCB_UNLOCK(stcb);
4631                                 break;
4632                         }
4633                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4634                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4635                                 error = EINVAL;
4636                                 SCTP_TCB_UNLOCK(stcb);
4637                                 break;
4638                         }
4639                         if (sizeof(struct sctp_reset_streams) +
4640                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4641                                 error = EINVAL;
4642                                 SCTP_TCB_UNLOCK(stcb);
4643                                 break;
4644                         }
4645                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4646                                 send_in = 1;
4647                                 if (stcb->asoc.stream_reset_outstanding) {
4648                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4649                                         error = EALREADY;
4650                                         SCTP_TCB_UNLOCK(stcb);
4651                                         break;
4652                                 }
4653                         }
4654                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4655                                 send_out = 1;
4656                         }
4657                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4658                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4659                                 error = ENOMEM;
4660                                 SCTP_TCB_UNLOCK(stcb);
4661                                 break;
4662                         }
4663                         if ((send_in == 0) && (send_out == 0)) {
4664                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4665                                 error = EINVAL;
4666                                 SCTP_TCB_UNLOCK(stcb);
4667                                 break;
4668                         }
4669                         for (i = 0; i < strrst->srs_number_streams; i++) {
4670                                 if ((send_in) &&
4671                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4672                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4673                                         error = EINVAL;
4674                                         break;
4675                                 }
4676                                 if ((send_out) &&
4677                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4679                                         error = EINVAL;
4680                                         break;
4681                                 }
4682                         }
4683                         if (error) {
4684                                 SCTP_TCB_UNLOCK(stcb);
4685                                 break;
4686                         }
4687                         if (send_out) {
4688                                 int cnt;
4689                                 uint16_t strm;
4690
4691                                 if (strrst->srs_number_streams) {
4692                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4693                                                 strm = strrst->srs_stream_list[i];
4694                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4695                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4696                                                         cnt++;
4697                                                 }
4698                                         }
4699                                 } else {
4700                                         /* Its all */
4701                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4702                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4703                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4704                                                         cnt++;
4705                                                 }
4706                                         }
4707                                 }
4708                         }
4709                         if (send_in) {
4710                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4711                                     strrst->srs_stream_list,
4712                                     send_in, 0, 0, 0, 0, 0);
4713                         } else {
4714                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4715                         }
4716                         if (error == 0) {
4717                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4718                         } else {
4719                                 /*
4720                                  * For outgoing streams don't report any
4721                                  * problems in sending the request to the
4722                                  * application. XXX: Double check resetting
4723                                  * incoming streams.
4724                                  */
4725                                 error = 0;
4726                         }
4727                         SCTP_TCB_UNLOCK(stcb);
4728                         break;
4729                 }
4730         case SCTP_ADD_STREAMS:
4731                 {
4732                         struct sctp_add_streams *stradd;
4733                         uint8_t addstream = 0;
4734                         uint16_t add_o_strmcnt = 0;
4735                         uint16_t add_i_strmcnt = 0;
4736
4737                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4738                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4739                         if (stcb == NULL) {
4740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4741                                 error = ENOENT;
4742                                 break;
4743                         }
4744                         if (stcb->asoc.reconfig_supported == 0) {
4745                                 /*
4746                                  * Peer does not support the chunk type.
4747                                  */
4748                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4749                                 error = EOPNOTSUPP;
4750                                 SCTP_TCB_UNLOCK(stcb);
4751                                 break;
4752                         }
4753                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4755                                 error = EINVAL;
4756                                 SCTP_TCB_UNLOCK(stcb);
4757                                 break;
4758                         }
4759                         if (stcb->asoc.stream_reset_outstanding) {
4760                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4761                                 error = EALREADY;
4762                                 SCTP_TCB_UNLOCK(stcb);
4763                                 break;
4764                         }
4765                         if ((stradd->sas_outstrms == 0) &&
4766                             (stradd->sas_instrms == 0)) {
4767                                 error = EINVAL;
4768                                 goto skip_stuff;
4769                         }
4770                         if (stradd->sas_outstrms) {
4771                                 addstream = 1;
4772                                 /* We allocate here */
4773                                 add_o_strmcnt = stradd->sas_outstrms;
4774                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4775                                         /* You can't have more than 64k */
4776                                         error = EINVAL;
4777                                         goto skip_stuff;
4778                                 }
4779                         }
4780                         if (stradd->sas_instrms) {
4781                                 int cnt;
4782
4783                                 addstream |= 2;
4784                                 /*
4785                                  * We allocate inside
4786                                  * sctp_send_str_reset_req()
4787                                  */
4788                                 add_i_strmcnt = stradd->sas_instrms;
4789                                 cnt = add_i_strmcnt;
4790                                 cnt += stcb->asoc.streamincnt;
4791                                 if (cnt > 0x0000ffff) {
4792                                         /* You can't have more than 64k */
4793                                         error = EINVAL;
4794                                         goto skip_stuff;
4795                                 }
4796                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4797                                         /* More than you are allowed */
4798                                         error = EINVAL;
4799                                         goto skip_stuff;
4800                                 }
4801                         }
4802                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4803                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4804         skip_stuff:
4805                         SCTP_TCB_UNLOCK(stcb);
4806                         break;
4807                 }
4808         case SCTP_RESET_ASSOC:
4809                 {
4810                         int i;
4811                         uint32_t *value;
4812
4813                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4814                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4815                         if (stcb == NULL) {
4816                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4817                                 error = ENOENT;
4818                                 break;
4819                         }
4820                         if (stcb->asoc.reconfig_supported == 0) {
4821                                 /*
4822                                  * Peer does not support the chunk type.
4823                                  */
4824                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4825                                 error = EOPNOTSUPP;
4826                                 SCTP_TCB_UNLOCK(stcb);
4827                                 break;
4828                         }
4829                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4830                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4831                                 error = EINVAL;
4832                                 SCTP_TCB_UNLOCK(stcb);
4833                                 break;
4834                         }
4835                         if (stcb->asoc.stream_reset_outstanding) {
4836                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4837                                 error = EALREADY;
4838                                 SCTP_TCB_UNLOCK(stcb);
4839                                 break;
4840                         }
4841                         /*
4842                          * Is there any data pending in the send or sent
4843                          * queues?
4844                          */
4845                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4846                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4847                 busy_out:
4848                                 error = EBUSY;
4849                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4850                                 SCTP_TCB_UNLOCK(stcb);
4851                                 break;
4852                         }
4853                         /* Do any streams have data queued? */
4854                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4855                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4856                                         goto busy_out;
4857                                 }
4858                         }
4859                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4860                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4861                         SCTP_TCB_UNLOCK(stcb);
4862                         break;
4863                 }
4864         case SCTP_CONNECT_X:
4865                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4866                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4867                         error = EINVAL;
4868                         break;
4869                 }
4870                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4871                 break;
4872         case SCTP_CONNECT_X_DELAYED:
4873                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4874                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4875                         error = EINVAL;
4876                         break;
4877                 }
4878                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4879                 break;
4880         case SCTP_CONNECT_X_COMPLETE:
4881                 {
4882                         struct sockaddr *sa;
4883
4884                         /* FIXME MT: check correct? */
4885                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4886
4887                         /* find tcb */
4888                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4889                                 SCTP_INP_RLOCK(inp);
4890                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4891                                 if (stcb) {
4892                                         SCTP_TCB_LOCK(stcb);
4893                                 }
4894                                 SCTP_INP_RUNLOCK(inp);
4895                         } else {
4896                                 /*
4897                                  * We increment here since
4898                                  * sctp_findassociation_ep_addr() wil do a
4899                                  * decrement if it finds the stcb as long as
4900                                  * the locked tcb (last argument) is NOT a
4901                                  * TCB.. aka NULL.
4902                                  */
4903                                 SCTP_INP_INCR_REF(inp);
4904                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4905                                 if (stcb == NULL) {
4906                                         SCTP_INP_DECR_REF(inp);
4907                                 }
4908                         }
4909
4910                         if (stcb == NULL) {
4911                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4912                                 error = ENOENT;
4913                                 break;
4914                         }
4915                         if (stcb->asoc.delayed_connection == 1) {
4916                                 stcb->asoc.delayed_connection = 0;
4917                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4918                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4919                                     stcb->asoc.primary_destination,
4920                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4921                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4922                         } else {
4923                                 /*
4924                                  * already expired or did not use delayed
4925                                  * connectx
4926                                  */
4927                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4928                                 error = EALREADY;
4929                         }
4930                         SCTP_TCB_UNLOCK(stcb);
4931                         break;
4932                 }
4933         case SCTP_MAX_BURST:
4934                 {
4935                         struct sctp_assoc_value *av;
4936
4937                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4938                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4939
4940                         if (stcb) {
4941                                 stcb->asoc.max_burst = av->assoc_value;
4942                                 SCTP_TCB_UNLOCK(stcb);
4943                         } else {
4944                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4945                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4946                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4947                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4948                                         SCTP_INP_WLOCK(inp);
4949                                         inp->sctp_ep.max_burst = av->assoc_value;
4950                                         SCTP_INP_WUNLOCK(inp);
4951                                 }
4952                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4953                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4954                                         SCTP_INP_RLOCK(inp);
4955                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4956                                                 SCTP_TCB_LOCK(stcb);
4957                                                 stcb->asoc.max_burst = av->assoc_value;
4958                                                 SCTP_TCB_UNLOCK(stcb);
4959                                         }
4960                                         SCTP_INP_RUNLOCK(inp);
4961                                 }
4962                         }
4963                         break;
4964                 }
4965         case SCTP_MAXSEG:
4966                 {
4967                         struct sctp_assoc_value *av;
4968                         int ovh;
4969
4970                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4971                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4972
4973                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4974                                 ovh = SCTP_MED_OVERHEAD;
4975                         } else {
4976                                 ovh = SCTP_MED_V4_OVERHEAD;
4977                         }
4978                         if (stcb) {
4979                                 if (av->assoc_value) {
4980                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4981                                 } else {
4982                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4983                                 }
4984                                 SCTP_TCB_UNLOCK(stcb);
4985                         } else {
4986                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4987                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4988                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4989                                         SCTP_INP_WLOCK(inp);
4990                                         /*
4991                                          * FIXME MT: I think this is not in
4992                                          * tune with the API ID
4993                                          */
4994                                         if (av->assoc_value) {
4995                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4996                                         } else {
4997                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4998                                         }
4999                                         SCTP_INP_WUNLOCK(inp);
5000                                 } else {
5001                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5002                                         error = EINVAL;
5003                                 }
5004                         }
5005                         break;
5006                 }
5007         case SCTP_EVENTS:
5008                 {
5009                         struct sctp_event_subscribe *events;
5010
5011                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5012
5013                         SCTP_INP_WLOCK(inp);
5014                         if (events->sctp_data_io_event) {
5015                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5016                         } else {
5017                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5018                         }
5019
5020                         if (events->sctp_association_event) {
5021                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5022                         } else {
5023                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5024                         }
5025
5026                         if (events->sctp_address_event) {
5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5028                         } else {
5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5030                         }
5031
5032                         if (events->sctp_send_failure_event) {
5033                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5034                         } else {
5035                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5036                         }
5037
5038                         if (events->sctp_peer_error_event) {
5039                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5040                         } else {
5041                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5042                         }
5043
5044                         if (events->sctp_shutdown_event) {
5045                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5046                         } else {
5047                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5048                         }
5049
5050                         if (events->sctp_partial_delivery_event) {
5051                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5052                         } else {
5053                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5054                         }
5055
5056                         if (events->sctp_adaptation_layer_event) {
5057                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5058                         } else {
5059                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5060                         }
5061
5062                         if (events->sctp_authentication_event) {
5063                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5064                         } else {
5065                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5066                         }
5067
5068                         if (events->sctp_sender_dry_event) {
5069                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5070                         } else {
5071                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5072                         }
5073
5074                         if (events->sctp_stream_reset_event) {
5075                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5076                         } else {
5077                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5078                         }
5079                         SCTP_INP_WUNLOCK(inp);
5080
5081                         SCTP_INP_RLOCK(inp);
5082                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5083                                 SCTP_TCB_LOCK(stcb);
5084                                 if (events->sctp_association_event) {
5085                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5086                                 } else {
5087                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5088                                 }
5089                                 if (events->sctp_address_event) {
5090                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5091                                 } else {
5092                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5093                                 }
5094                                 if (events->sctp_send_failure_event) {
5095                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5096                                 } else {
5097                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5098                                 }
5099                                 if (events->sctp_peer_error_event) {
5100                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5101                                 } else {
5102                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5103                                 }
5104                                 if (events->sctp_shutdown_event) {
5105                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5106                                 } else {
5107                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5108                                 }
5109                                 if (events->sctp_partial_delivery_event) {
5110                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5111                                 } else {
5112                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5113                                 }
5114                                 if (events->sctp_adaptation_layer_event) {
5115                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5116                                 } else {
5117                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5118                                 }
5119                                 if (events->sctp_authentication_event) {
5120                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5121                                 } else {
5122                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5123                                 }
5124                                 if (events->sctp_sender_dry_event) {
5125                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5126                                 } else {
5127                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5128                                 }
5129                                 if (events->sctp_stream_reset_event) {
5130                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5131                                 } else {
5132                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5133                                 }
5134                                 SCTP_TCB_UNLOCK(stcb);
5135                         }
5136                         /*
5137                          * Send up the sender dry event only for 1-to-1
5138                          * style sockets.
5139                          */
5140                         if (events->sctp_sender_dry_event) {
5141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5143                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5144                                         if (stcb) {
5145                                                 SCTP_TCB_LOCK(stcb);
5146                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5147                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5148                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5149                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5150                                                 }
5151                                                 SCTP_TCB_UNLOCK(stcb);
5152                                         }
5153                                 }
5154                         }
5155                         SCTP_INP_RUNLOCK(inp);
5156                         break;
5157                 }
5158         case SCTP_ADAPTATION_LAYER:
5159                 {
5160                         struct sctp_setadaptation *adap_bits;
5161
5162                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5163                         SCTP_INP_WLOCK(inp);
5164                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5165                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5166                         SCTP_INP_WUNLOCK(inp);
5167                         break;
5168                 }
5169 #ifdef SCTP_DEBUG
5170         case SCTP_SET_INITIAL_DBG_SEQ:
5171                 {
5172                         uint32_t *vvv;
5173
5174                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5175                         SCTP_INP_WLOCK(inp);
5176                         inp->sctp_ep.initial_sequence_debug = *vvv;
5177                         SCTP_INP_WUNLOCK(inp);
5178                         break;
5179                 }
5180 #endif
5181         case SCTP_DEFAULT_SEND_PARAM:
5182                 {
5183                         struct sctp_sndrcvinfo *s_info;
5184
5185                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5186                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5187
5188                         if (stcb) {
5189                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5190                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5191                                 } else {
5192                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5193                                         error = EINVAL;
5194                                 }
5195                                 SCTP_TCB_UNLOCK(stcb);
5196                         } else {
5197                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5198                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5199                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5200                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5201                                         SCTP_INP_WLOCK(inp);
5202                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5203                                         SCTP_INP_WUNLOCK(inp);
5204                                 }
5205                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5206                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5207                                         SCTP_INP_RLOCK(inp);
5208                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5209                                                 SCTP_TCB_LOCK(stcb);
5210                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5211                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5212                                                 }
5213                                                 SCTP_TCB_UNLOCK(stcb);
5214                                         }
5215                                         SCTP_INP_RUNLOCK(inp);
5216                                 }
5217                         }
5218                         break;
5219                 }
5220         case SCTP_PEER_ADDR_PARAMS:
5221                 {
5222                         struct sctp_paddrparams *paddrp;
5223                         struct sctp_nets *net;
5224                         struct sockaddr *addr;
5225 #if defined(INET) && defined(INET6)
5226                         struct sockaddr_in sin_store;
5227 #endif
5228
5229                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5230                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5231
5232 #if defined(INET) && defined(INET6)
5233                         if (paddrp->spp_address.ss_family == AF_INET6) {
5234                                 struct sockaddr_in6 *sin6;
5235
5236                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5237                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5238                                         in6_sin6_2_sin(&sin_store, sin6);
5239                                         addr = (struct sockaddr *)&sin_store;
5240                                 } else {
5241                                         addr = (struct sockaddr *)&paddrp->spp_address;
5242                                 }
5243                         } else {
5244                                 addr = (struct sockaddr *)&paddrp->spp_address;
5245                         }
5246 #else
5247                         addr = (struct sockaddr *)&paddrp->spp_address;
5248 #endif
5249                         if (stcb != NULL) {
5250                                 net = sctp_findnet(stcb, addr);
5251                         } else {
5252                                 /*
5253                                  * We increment here since
5254                                  * sctp_findassociation_ep_addr() wil do a
5255                                  * decrement if it finds the stcb as long as
5256                                  * the locked tcb (last argument) is NOT a
5257                                  * TCB.. aka NULL.
5258                                  */
5259                                 net = NULL;
5260                                 SCTP_INP_INCR_REF(inp);
5261                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5262                                     &net, NULL, NULL);
5263                                 if (stcb == NULL) {
5264                                         SCTP_INP_DECR_REF(inp);
5265                                 }
5266                         }
5267                         if ((stcb != NULL) && (net == NULL)) {
5268 #ifdef INET
5269                                 if (addr->sa_family == AF_INET) {
5270
5271                                         struct sockaddr_in *sin;
5272
5273                                         sin = (struct sockaddr_in *)addr;
5274                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5275                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5276                                                 SCTP_TCB_UNLOCK(stcb);
5277                                                 error = EINVAL;
5278                                                 break;
5279                                         }
5280                                 } else
5281 #endif
5282 #ifdef INET6
5283                                 if (addr->sa_family == AF_INET6) {
5284                                         struct sockaddr_in6 *sin6;
5285
5286                                         sin6 = (struct sockaddr_in6 *)addr;
5287                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5288                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5289                                                 SCTP_TCB_UNLOCK(stcb);
5290                                                 error = EINVAL;
5291                                                 break;
5292                                         }
5293                                 } else
5294 #endif
5295                                 {
5296                                         error = EAFNOSUPPORT;
5297                                         SCTP_TCB_UNLOCK(stcb);
5298                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5299                                         break;
5300                                 }
5301                         }
5302                         /* sanity checks */
5303                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5304                                 if (stcb)
5305                                         SCTP_TCB_UNLOCK(stcb);
5306                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5307                                 return (EINVAL);
5308                         }
5309
5310                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5311                                 if (stcb)
5312                                         SCTP_TCB_UNLOCK(stcb);
5313                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5314                                 return (EINVAL);
5315                         }
5316
5317                         if (stcb != NULL) {
5318                                 /************************TCB SPECIFIC SET ******************/
5319                                 if (net != NULL) {
5320                                         /************************NET SPECIFIC SET ******************/
5321                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5322                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5323                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5324                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5325                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5326                                                 }
5327                                                 net->dest_state |= SCTP_ADDR_NOHB;
5328                                         }
5329                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5330                                                 if (paddrp->spp_hbinterval) {
5331                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5332                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5333                                                         net->heart_beat_delay = 0;
5334                                                 }
5335                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5336                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5337                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5338                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5339                                         }
5340                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5341                                                 /* on demand HB */
5342                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5343                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5344                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5345                                         }
5346                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5347                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5348                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5349                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5350                                                 }
5351                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5352                                                 net->mtu = paddrp->spp_pathmtu;
5353                                                 switch (net->ro._l_addr.sa.sa_family) {
5354 #ifdef INET
5355                                                 case AF_INET:
5356                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5357                                                         break;
5358 #endif
5359 #ifdef INET6
5360                                                 case AF_INET6:
5361                                                         net->mtu += SCTP_MIN_OVERHEAD;
5362                                                         break;
5363 #endif
5364                                                 default:
5365                                                         break;
5366                                                 }
5367                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5368                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5369                                                 }
5370                                         }
5371                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5372                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5373                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5374                                                 }
5375                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5376                                         }
5377                                         if (paddrp->spp_pathmaxrxt) {
5378                                                 if (net->dest_state & SCTP_ADDR_PF) {
5379                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5380                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5381                                                         }
5382                                                 } else {
5383                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5384                                                             (net->error_count > net->pf_threshold)) {
5385                                                                 net->dest_state |= SCTP_ADDR_PF;
5386                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5387                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5388                                                                     stcb->sctp_ep, stcb, net,
5389                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5390                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5391                                                         }
5392                                                 }
5393                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5394                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5395                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5396                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5397                                                         }
5398                                                 } else {
5399                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5400                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5401                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5402                                                         }
5403                                                 }
5404                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5405                                         }
5406                                         if (paddrp->spp_flags & SPP_DSCP) {
5407                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5408                                                 net->dscp |= 0x01;
5409                                         }
5410 #ifdef INET6
5411                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5412                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5413                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5414                                                         net->flowlabel |= 0x80000000;
5415                                                 }
5416                                         }
5417 #endif
5418                                 } else {
5419                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5420                                         if (paddrp->spp_pathmaxrxt != 0) {
5421                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5422                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5423                                                         if (net->dest_state & SCTP_ADDR_PF) {
5424                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5425                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5426                                                                 }
5427                                                         } else {
5428                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5429                                                                     (net->error_count > net->pf_threshold)) {
5430                                                                         net->dest_state |= SCTP_ADDR_PF;
5431                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5432                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5433                                                                             stcb->sctp_ep, stcb, net,
5434                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5435                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5436                                                                 }
5437                                                         }
5438                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5439                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5440                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5441                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5442                                                                 }
5443                                                         } else {
5444                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5445                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5446                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5447                                                                 }
5448                                                         }
5449                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5450                                                 }
5451                                         }
5452
5453                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5454                                                 if (paddrp->spp_hbinterval != 0) {
5455                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5456                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5457                                                         stcb->asoc.heart_beat_delay = 0;
5458                                                 }
5459                                                 /* Turn back on the timer */
5460                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5461                                                         if (paddrp->spp_hbinterval != 0) {
5462                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5463                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5464                                                                 net->heart_beat_delay = 0;
5465                                                         }
5466                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5467                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5468                                                         }
5469                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5470                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5471                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5472                                                 }
5473                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5474                                         }
5475                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5476                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5477                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5478                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5479                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5480                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5481                                                                             inp, stcb, net,
5482                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5483                                                                 }
5484                                                         }
5485                                                 }
5486                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5487                                         }
5488                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5489                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5490                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5491                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5492                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5493                                                         }
5494                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5495                                                         net->mtu = paddrp->spp_pathmtu;
5496                                                         switch (net->ro._l_addr.sa.sa_family) {
5497 #ifdef INET
5498                                                         case AF_INET:
5499                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5500                                                                 break;
5501 #endif
5502 #ifdef INET6
5503                                                         case AF_INET6:
5504                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5505                                                                 break;
5506 #endif
5507                                                         default:
5508                                                                 break;
5509                                                         }
5510                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5511                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5512                                                         }
5513                                                 }
5514                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5515                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5516                                         }
5517                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5518                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5519                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5520                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5521                                                         }
5522                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5523                                                 }
5524                                                 stcb->asoc.default_mtu = 0;
5525                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5526                                         }
5527                                         if (paddrp->spp_flags & SPP_DSCP) {
5528                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5529                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5530                                                         net->dscp |= 0x01;
5531                                                 }
5532                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5533                                                 stcb->asoc.default_dscp |= 0x01;
5534                                         }
5535 #ifdef INET6
5536                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5537                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5538                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5539                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5540                                                                 net->flowlabel |= 0x80000000;
5541                                                         }
5542                                                 }
5543                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5544                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5545                                         }
5546 #endif
5547                                 }
5548                                 SCTP_TCB_UNLOCK(stcb);
5549                         } else {
5550                                 /************************NO TCB, SET TO default stuff ******************/
5551                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5552                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5553                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5554                                         SCTP_INP_WLOCK(inp);
5555                                         /*
5556                                          * For the TOS/FLOWLABEL stuff you
5557                                          * set it with the options on the
5558                                          * socket
5559                                          */
5560                                         if (paddrp->spp_pathmaxrxt != 0) {
5561                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5562                                         }
5563
5564                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5565                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5566                                         else if (paddrp->spp_hbinterval != 0) {
5567                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5568                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5569                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5570                                         }
5571
5572                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5573                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5574                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5575                                                 } else if (paddrp->spp_hbinterval) {
5576                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5577                                                 }
5578                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5579                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5580                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5581                                         }
5582                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5583                                                 inp->sctp_ep.default_mtu = 0;
5584                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5585                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5586                                                 if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) {
5587                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5588                                                 }
5589                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5590                                         }
5591                                         if (paddrp->spp_flags & SPP_DSCP) {
5592                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5593                                                 inp->sctp_ep.default_dscp |= 0x01;
5594                                         }
5595 #ifdef INET6
5596                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5597                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5598                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5599                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5600                                                 }
5601                                         }
5602 #endif
5603                                         SCTP_INP_WUNLOCK(inp);
5604                                 } else {
5605                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5606                                         error = EINVAL;
5607                                 }
5608                         }
5609                         break;
5610                 }
5611         case SCTP_RTOINFO:
5612                 {
5613                         struct sctp_rtoinfo *srto;
5614                         uint32_t new_init, new_min, new_max;
5615
5616                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5617                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5618
5619                         if (stcb) {
5620                                 if (srto->srto_initial)
5621                                         new_init = srto->srto_initial;
5622                                 else
5623                                         new_init = stcb->asoc.initial_rto;
5624                                 if (srto->srto_max)
5625                                         new_max = srto->srto_max;
5626                                 else
5627                                         new_max = stcb->asoc.maxrto;
5628                                 if (srto->srto_min)
5629                                         new_min = srto->srto_min;
5630                                 else
5631                                         new_min = stcb->asoc.minrto;
5632                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5633                                         stcb->asoc.initial_rto = new_init;
5634                                         stcb->asoc.maxrto = new_max;
5635                                         stcb->asoc.minrto = new_min;
5636                                 } else {
5637                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5638                                         error = EINVAL;
5639                                 }
5640                                 SCTP_TCB_UNLOCK(stcb);
5641                         } else {
5642                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5643                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5644                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5645                                         SCTP_INP_WLOCK(inp);
5646                                         if (srto->srto_initial)
5647                                                 new_init = srto->srto_initial;
5648                                         else
5649                                                 new_init = inp->sctp_ep.initial_rto;
5650                                         if (srto->srto_max)
5651                                                 new_max = srto->srto_max;
5652                                         else
5653                                                 new_max = inp->sctp_ep.sctp_maxrto;
5654                                         if (srto->srto_min)
5655                                                 new_min = srto->srto_min;
5656                                         else
5657                                                 new_min = inp->sctp_ep.sctp_minrto;
5658                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5659                                                 inp->sctp_ep.initial_rto = new_init;
5660                                                 inp->sctp_ep.sctp_maxrto = new_max;
5661                                                 inp->sctp_ep.sctp_minrto = new_min;
5662                                         } else {
5663                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5664                                                 error = EINVAL;
5665                                         }
5666                                         SCTP_INP_WUNLOCK(inp);
5667                                 } else {
5668                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5669                                         error = EINVAL;
5670                                 }
5671                         }
5672                         break;
5673                 }
5674         case SCTP_ASSOCINFO:
5675                 {
5676                         struct sctp_assocparams *sasoc;
5677
5678                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5679                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5680                         if (sasoc->sasoc_cookie_life) {
5681                                 /* boundary check the cookie life */
5682                                 if (sasoc->sasoc_cookie_life < 1000)
5683                                         sasoc->sasoc_cookie_life = 1000;
5684                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5685                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5686                                 }
5687                         }
5688                         if (stcb) {
5689                                 if (sasoc->sasoc_asocmaxrxt)
5690                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5691                                 if (sasoc->sasoc_cookie_life) {
5692                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5693                                 }
5694                                 SCTP_TCB_UNLOCK(stcb);
5695                         } else {
5696                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5697                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5698                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5699                                         SCTP_INP_WLOCK(inp);
5700                                         if (sasoc->sasoc_asocmaxrxt)
5701                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5702                                         if (sasoc->sasoc_cookie_life) {
5703                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5704                                         }
5705                                         SCTP_INP_WUNLOCK(inp);
5706                                 } else {
5707                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5708                                         error = EINVAL;
5709                                 }
5710                         }
5711                         break;
5712                 }
5713         case SCTP_INITMSG:
5714                 {
5715                         struct sctp_initmsg *sinit;
5716
5717                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5718                         SCTP_INP_WLOCK(inp);
5719                         if (sinit->sinit_num_ostreams)
5720                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5721
5722                         if (sinit->sinit_max_instreams)
5723                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5724
5725                         if (sinit->sinit_max_attempts)
5726                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5727
5728                         if (sinit->sinit_max_init_timeo)
5729                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5730                         SCTP_INP_WUNLOCK(inp);
5731                         break;
5732                 }
5733         case SCTP_PRIMARY_ADDR:
5734                 {
5735                         struct sctp_setprim *spa;
5736                         struct sctp_nets *net;
5737                         struct sockaddr *addr;
5738 #if defined(INET) && defined(INET6)
5739                         struct sockaddr_in sin_store;
5740 #endif
5741
5742                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5743                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5744
5745 #if defined(INET) && defined(INET6)
5746                         if (spa->ssp_addr.ss_family == AF_INET6) {
5747                                 struct sockaddr_in6 *sin6;
5748
5749                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5750                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5751                                         in6_sin6_2_sin(&sin_store, sin6);
5752                                         addr = (struct sockaddr *)&sin_store;
5753                                 } else {
5754                                         addr = (struct sockaddr *)&spa->ssp_addr;
5755                                 }
5756                         } else {
5757                                 addr = (struct sockaddr *)&spa->ssp_addr;
5758                         }
5759 #else
5760                         addr = (struct sockaddr *)&spa->ssp_addr;
5761 #endif
5762                         if (stcb != NULL) {
5763                                 net = sctp_findnet(stcb, addr);
5764                         } else {
5765                                 /*
5766                                  * We increment here since
5767                                  * sctp_findassociation_ep_addr() wil do a
5768                                  * decrement if it finds the stcb as long as
5769                                  * the locked tcb (last argument) is NOT a
5770                                  * TCB.. aka NULL.
5771                                  */
5772                                 net = NULL;
5773                                 SCTP_INP_INCR_REF(inp);
5774                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5775                                     &net, NULL, NULL);
5776                                 if (stcb == NULL) {
5777                                         SCTP_INP_DECR_REF(inp);
5778                                 }
5779                         }
5780
5781                         if ((stcb != NULL) && (net != NULL)) {
5782                                 if (net != stcb->asoc.primary_destination) {
5783                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5784                                                 /* Ok we need to set it */
5785                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5786                                                         if ((stcb->asoc.alternate) &&
5787                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5788                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5789                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5790                                                                 stcb->asoc.alternate = NULL;
5791                                                         }
5792                                                 } else {
5793                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5794                                                         error = EINVAL;
5795                                                 }
5796                                         } else {
5797                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5798                                                 error = EINVAL;
5799                                         }
5800                                 }
5801                         } else {
5802                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5803                                 error = EINVAL;
5804                         }
5805                         if (stcb != NULL) {
5806                                 SCTP_TCB_UNLOCK(stcb);
5807                         }
5808                         break;
5809                 }
5810         case SCTP_SET_DYNAMIC_PRIMARY:
5811                 {
5812                         union sctp_sockstore *ss;
5813
5814                         error = priv_check(curthread,
5815                             PRIV_NETINET_RESERVEDPORT);
5816                         if (error)
5817                                 break;
5818
5819                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5820                         /* SUPER USER CHECK? */
5821                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5822                         break;
5823                 }
5824         case SCTP_SET_PEER_PRIMARY_ADDR:
5825                 {
5826                         struct sctp_setpeerprim *sspp;
5827                         struct sockaddr *addr;
5828 #if defined(INET) && defined(INET6)
5829                         struct sockaddr_in sin_store;
5830 #endif
5831
5832                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5833                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5834                         if (stcb != NULL) {
5835                                 struct sctp_ifa *ifa;
5836
5837 #if defined(INET) && defined(INET6)
5838                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5839                                         struct sockaddr_in6 *sin6;
5840
5841                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5842                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5843                                                 in6_sin6_2_sin(&sin_store, sin6);
5844                                                 addr = (struct sockaddr *)&sin_store;
5845                                         } else {
5846                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5847                                         }
5848                                 } else {
5849                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5850                                 }
5851 #else
5852                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5853 #endif
5854                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5855                                 if (ifa == NULL) {
5856                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5857                                         error = EINVAL;
5858                                         goto out_of_it;
5859                                 }
5860                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5861                                         /*
5862                                          * Must validate the ifa found is in
5863                                          * our ep
5864                                          */
5865                                         struct sctp_laddr *laddr;
5866                                         int found = 0;
5867
5868                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5869                                                 if (laddr->ifa == NULL) {
5870                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5871                                                             __func__);
5872                                                         continue;
5873                                                 }
5874                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5875                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5876                                                         continue;
5877                                                 }
5878                                                 if (laddr->ifa == ifa) {
5879                                                         found = 1;
5880                                                         break;
5881                                                 }
5882                                         }
5883                                         if (!found) {
5884                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5885                                                 error = EINVAL;
5886                                                 goto out_of_it;
5887                                         }
5888                                 } else {
5889                                         switch (addr->sa_family) {
5890 #ifdef INET
5891                                         case AF_INET:
5892                                                 {
5893                                                         struct sockaddr_in *sin;
5894
5895                                                         sin = (struct sockaddr_in *)addr;
5896                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5897                                                             &sin->sin_addr) != 0) {
5898                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5899                                                                 error = EINVAL;
5900                                                                 goto out_of_it;
5901                                                         }
5902                                                         break;
5903                                                 }
5904 #endif
5905 #ifdef INET6
5906                                         case AF_INET6:
5907                                                 {
5908                                                         struct sockaddr_in6 *sin6;
5909
5910                                                         sin6 = (struct sockaddr_in6 *)addr;
5911                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5912                                                             &sin6->sin6_addr) != 0) {
5913                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5914                                                                 error = EINVAL;
5915                                                                 goto out_of_it;
5916                                                         }
5917                                                         break;
5918                                                 }
5919 #endif
5920                                         default:
5921                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5922                                                 error = EINVAL;
5923                                                 goto out_of_it;
5924                                         }
5925                                 }
5926                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5928                                         error = EINVAL;
5929                                 }
5930                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5931                 out_of_it:
5932                                 SCTP_TCB_UNLOCK(stcb);
5933                         } else {
5934                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5935                                 error = EINVAL;
5936                         }
5937                         break;
5938                 }
5939         case SCTP_BINDX_ADD_ADDR:
5940                 {
5941                         struct sctp_getaddresses *addrs;
5942                         struct thread *td;
5943
5944                         td = (struct thread *)p;
5945                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5946                             optsize);
5947 #ifdef INET
5948                         if (addrs->addr->sa_family == AF_INET) {
5949                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5950                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5951                                         error = EINVAL;
5952                                         break;
5953                                 }
5954                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5955                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5956                                         break;
5957                                 }
5958                         } else
5959 #endif
5960 #ifdef INET6
5961                         if (addrs->addr->sa_family == AF_INET6) {
5962                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5964                                         error = EINVAL;
5965                                         break;
5966                                 }
5967                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5968                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5969                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5970                                         break;
5971                                 }
5972                         } else
5973 #endif
5974                         {
5975                                 error = EAFNOSUPPORT;
5976                                 break;
5977                         }
5978                         sctp_bindx_add_address(so, inp, addrs->addr,
5979                             addrs->sget_assoc_id, vrf_id,
5980                             &error, p);
5981                         break;
5982                 }
5983         case SCTP_BINDX_REM_ADDR:
5984                 {
5985                         struct sctp_getaddresses *addrs;
5986                         struct thread *td;
5987
5988                         td = (struct thread *)p;
5989
5990                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5991 #ifdef INET
5992                         if (addrs->addr->sa_family == AF_INET) {
5993                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5994                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5995                                         error = EINVAL;
5996                                         break;
5997                                 }
5998                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5999                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6000                                         break;
6001                                 }
6002                         } else
6003 #endif
6004 #ifdef INET6
6005                         if (addrs->addr->sa_family == AF_INET6) {
6006                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
6007                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6008                                         error = EINVAL;
6009                                         break;
6010                                 }
6011                                 if (td != NULL &&
6012                                     (error = prison_local_ip6(td->td_ucred,
6013                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6014                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6015                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6016                                         break;
6017                                 }
6018                         } else
6019 #endif
6020                         {
6021                                 error = EAFNOSUPPORT;
6022                                 break;
6023                         }
6024                         sctp_bindx_delete_address(inp, addrs->addr,
6025                             addrs->sget_assoc_id, vrf_id,
6026                             &error);
6027                         break;
6028                 }
6029         case SCTP_EVENT:
6030                 {
6031                         struct sctp_event *event;
6032                         uint32_t event_type;
6033
6034                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6035                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6036                         switch (event->se_type) {
6037                         case SCTP_ASSOC_CHANGE:
6038                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6039                                 break;
6040                         case SCTP_PEER_ADDR_CHANGE:
6041                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6042                                 break;
6043                         case SCTP_REMOTE_ERROR:
6044                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6045                                 break;
6046                         case SCTP_SEND_FAILED:
6047                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6048                                 break;
6049                         case SCTP_SHUTDOWN_EVENT:
6050                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6051                                 break;
6052                         case SCTP_ADAPTATION_INDICATION:
6053                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6054                                 break;
6055                         case SCTP_PARTIAL_DELIVERY_EVENT:
6056                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6057                                 break;
6058                         case SCTP_AUTHENTICATION_EVENT:
6059                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6060                                 break;
6061                         case SCTP_STREAM_RESET_EVENT:
6062                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6063                                 break;
6064                         case SCTP_SENDER_DRY_EVENT:
6065                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6066                                 break;
6067                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6068                                 event_type = 0;
6069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6070                                 error = ENOTSUP;
6071                                 break;
6072                         case SCTP_ASSOC_RESET_EVENT:
6073                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6074                                 break;
6075                         case SCTP_STREAM_CHANGE_EVENT:
6076                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6077                                 break;
6078                         case SCTP_SEND_FAILED_EVENT:
6079                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6080                                 break;
6081                         default:
6082                                 event_type = 0;
6083                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6084                                 error = EINVAL;
6085                                 break;
6086                         }
6087                         if (event_type > 0) {
6088                                 if (stcb) {
6089                                         if (event->se_on) {
6090                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6091                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6092                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6093                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6094                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6095                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6096                                                         }
6097                                                 }
6098                                         } else {
6099                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6100                                         }
6101                                         SCTP_TCB_UNLOCK(stcb);
6102                                 } else {
6103                                         /*
6104                                          * We don't want to send up a storm
6105                                          * of events, so return an error for
6106                                          * sender dry events
6107                                          */
6108                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6109                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6110                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6111                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6112                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6113                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6114                                                 error = ENOTSUP;
6115                                                 break;
6116                                         }
6117                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6118                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6119                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6120                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6121                                                 SCTP_INP_WLOCK(inp);
6122                                                 if (event->se_on) {
6123                                                         sctp_feature_on(inp, event_type);
6124                                                 } else {
6125                                                         sctp_feature_off(inp, event_type);
6126                                                 }
6127                                                 SCTP_INP_WUNLOCK(inp);
6128                                         }
6129                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6130                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6131                                                 SCTP_INP_RLOCK(inp);
6132                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6133                                                         SCTP_TCB_LOCK(stcb);
6134                                                         if (event->se_on) {
6135                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6136                                                         } else {
6137                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6138                                                         }
6139                                                         SCTP_TCB_UNLOCK(stcb);
6140                                                 }
6141                                                 SCTP_INP_RUNLOCK(inp);
6142                                         }
6143                                 }
6144                         } else {
6145                                 if (stcb) {
6146                                         SCTP_TCB_UNLOCK(stcb);
6147                                 }
6148                         }
6149                         break;
6150                 }
6151         case SCTP_RECVRCVINFO:
6152                 {
6153                         int *onoff;
6154
6155                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6156                         SCTP_INP_WLOCK(inp);
6157                         if (*onoff != 0) {
6158                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6159                         } else {
6160                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6161                         }
6162                         SCTP_INP_WUNLOCK(inp);
6163                         break;
6164                 }
6165         case SCTP_RECVNXTINFO:
6166                 {
6167                         int *onoff;
6168
6169                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6170                         SCTP_INP_WLOCK(inp);
6171                         if (*onoff != 0) {
6172                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6173                         } else {
6174                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6175                         }
6176                         SCTP_INP_WUNLOCK(inp);
6177                         break;
6178                 }
6179         case SCTP_DEFAULT_SNDINFO:
6180                 {
6181                         struct sctp_sndinfo *info;
6182                         uint16_t policy;
6183
6184                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6185                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6186
6187                         if (stcb) {
6188                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6189                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6190                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6191                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6192                                         stcb->asoc.def_send.sinfo_flags |= policy;
6193                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6194                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6195                                 } else {
6196                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6197                                         error = EINVAL;
6198                                 }
6199                                 SCTP_TCB_UNLOCK(stcb);
6200                         } else {
6201                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6202                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6203                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6204                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6205                                         SCTP_INP_WLOCK(inp);
6206                                         inp->def_send.sinfo_stream = info->snd_sid;
6207                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6208                                         inp->def_send.sinfo_flags = info->snd_flags;
6209                                         inp->def_send.sinfo_flags |= policy;
6210                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6211                                         inp->def_send.sinfo_context = info->snd_context;
6212                                         SCTP_INP_WUNLOCK(inp);
6213                                 }
6214                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6215                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6216                                         SCTP_INP_RLOCK(inp);
6217                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6218                                                 SCTP_TCB_LOCK(stcb);
6219                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6220                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6221                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6222                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6223                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6224                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6225                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6226                                                 }
6227                                                 SCTP_TCB_UNLOCK(stcb);
6228                                         }
6229                                         SCTP_INP_RUNLOCK(inp);
6230                                 }
6231                         }
6232                         break;
6233                 }
6234         case SCTP_DEFAULT_PRINFO:
6235                 {
6236                         struct sctp_default_prinfo *info;
6237
6238                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6239                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6240
6241                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6242                                 if (stcb) {
6243                                         SCTP_TCB_UNLOCK(stcb);
6244                                 }
6245                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6246                                 error = EINVAL;
6247                                 break;
6248                         }
6249                         if (stcb) {
6250                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6251                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6252                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6253                                 SCTP_TCB_UNLOCK(stcb);
6254                         } else {
6255                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6256                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6257                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6258                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6259                                         SCTP_INP_WLOCK(inp);
6260                                         inp->def_send.sinfo_flags &= 0xfff0;
6261                                         inp->def_send.sinfo_flags |= info->pr_policy;
6262                                         inp->def_send.sinfo_timetolive = info->pr_value;
6263                                         SCTP_INP_WUNLOCK(inp);
6264                                 }
6265                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6266                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6267                                         SCTP_INP_RLOCK(inp);
6268                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6269                                                 SCTP_TCB_LOCK(stcb);
6270                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6271                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6272                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6273                                                 SCTP_TCB_UNLOCK(stcb);
6274                                         }
6275                                         SCTP_INP_RUNLOCK(inp);
6276                                 }
6277                         }
6278                         break;
6279                 }
6280         case SCTP_PEER_ADDR_THLDS:
6281                 /* Applies to the specific association */
6282                 {
6283                         struct sctp_paddrthlds *thlds;
6284                         struct sctp_nets *net;
6285                         struct sockaddr *addr;
6286 #if defined(INET) && defined(INET6)
6287                         struct sockaddr_in sin_store;
6288 #endif
6289
6290                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6291                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6292
6293 #if defined(INET) && defined(INET6)
6294                         if (thlds->spt_address.ss_family == AF_INET6) {
6295                                 struct sockaddr_in6 *sin6;
6296
6297                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6298                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6299                                         in6_sin6_2_sin(&sin_store, sin6);
6300                                         addr = (struct sockaddr *)&sin_store;
6301                                 } else {
6302                                         addr = (struct sockaddr *)&thlds->spt_address;
6303                                 }
6304                         } else {
6305                                 addr = (struct sockaddr *)&thlds->spt_address;
6306                         }
6307 #else
6308                         addr = (struct sockaddr *)&thlds->spt_address;
6309 #endif
6310                         if (stcb != NULL) {
6311                                 net = sctp_findnet(stcb, addr);
6312                         } else {
6313                                 /*
6314                                  * We increment here since
6315                                  * sctp_findassociation_ep_addr() wil do a
6316                                  * decrement if it finds the stcb as long as
6317                                  * the locked tcb (last argument) is NOT a
6318                                  * TCB.. aka NULL.
6319                                  */
6320                                 net = NULL;
6321                                 SCTP_INP_INCR_REF(inp);
6322                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6323                                     &net, NULL, NULL);
6324                                 if (stcb == NULL) {
6325                                         SCTP_INP_DECR_REF(inp);
6326                                 }
6327                         }
6328                         if ((stcb != NULL) && (net == NULL)) {
6329 #ifdef INET
6330                                 if (addr->sa_family == AF_INET) {
6331
6332                                         struct sockaddr_in *sin;
6333
6334                                         sin = (struct sockaddr_in *)addr;
6335                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6336                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6337                                                 SCTP_TCB_UNLOCK(stcb);
6338                                                 error = EINVAL;
6339                                                 break;
6340                                         }
6341                                 } else
6342 #endif
6343 #ifdef INET6
6344                                 if (addr->sa_family == AF_INET6) {
6345                                         struct sockaddr_in6 *sin6;
6346
6347                                         sin6 = (struct sockaddr_in6 *)addr;
6348                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6349                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6350                                                 SCTP_TCB_UNLOCK(stcb);
6351                                                 error = EINVAL;
6352                                                 break;
6353                                         }
6354                                 } else
6355 #endif
6356                                 {
6357                                         error = EAFNOSUPPORT;
6358                                         SCTP_TCB_UNLOCK(stcb);
6359                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6360                                         break;
6361                                 }
6362                         }
6363                         if (thlds->spt_pathcpthld != 0xffff) {
6364                                 if (stcb != NULL) {
6365                                         SCTP_TCB_UNLOCK(stcb);
6366                                 }
6367                                 error = EINVAL;
6368                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6369                                 break;
6370                         }
6371                         if (stcb != NULL) {
6372                                 if (net != NULL) {
6373                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6374                                         net->pf_threshold = thlds->spt_pathpfthld;
6375                                         if (net->dest_state & SCTP_ADDR_PF) {
6376                                                 if ((net->error_count > net->failure_threshold) ||
6377                                                     (net->error_count <= net->pf_threshold)) {
6378                                                         net->dest_state &= ~SCTP_ADDR_PF;
6379                                                 }
6380                                         } else {
6381                                                 if ((net->error_count > net->pf_threshold) &&
6382                                                     (net->error_count <= net->failure_threshold)) {
6383                                                         net->dest_state |= SCTP_ADDR_PF;
6384                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6385                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6386                                                             stcb->sctp_ep, stcb, net,
6387                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6388                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6389                                                 }
6390                                         }
6391                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6392                                                 if (net->error_count > net->failure_threshold) {
6393                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6394                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6395                                                 }
6396                                         } else {
6397                                                 if (net->error_count <= net->failure_threshold) {
6398                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6399                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6400                                                 }
6401                                         }
6402                                 } else {
6403                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6404                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6405                                                 net->pf_threshold = thlds->spt_pathpfthld;
6406                                                 if (net->dest_state & SCTP_ADDR_PF) {
6407                                                         if ((net->error_count > net->failure_threshold) ||
6408                                                             (net->error_count <= net->pf_threshold)) {
6409                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6410                                                         }
6411                                                 } else {
6412                                                         if ((net->error_count > net->pf_threshold) &&
6413                                                             (net->error_count <= net->failure_threshold)) {
6414                                                                 net->dest_state |= SCTP_ADDR_PF;
6415                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6416                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6417                                                                     stcb->sctp_ep, stcb, net,
6418                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6419                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6420                                                         }
6421                                                 }
6422                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6423                                                         if (net->error_count > net->failure_threshold) {
6424                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6425                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6426                                                         }
6427                                                 } else {
6428                                                         if (net->error_count <= net->failure_threshold) {
6429                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6430                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6431                                                         }
6432                                                 }
6433                                         }
6434                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6435                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6436                                 }
6437                                 SCTP_TCB_UNLOCK(stcb);
6438                         } else {
6439                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6440                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6441                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6442                                         SCTP_INP_WLOCK(inp);
6443                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6444                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6445                                         SCTP_INP_WUNLOCK(inp);
6446                                 } else {
6447                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6448                                         error = EINVAL;
6449                                 }
6450                         }
6451                         break;
6452                 }
6453         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6454                 {
6455                         struct sctp_udpencaps *encaps;
6456                         struct sctp_nets *net;
6457                         struct sockaddr *addr;
6458 #if defined(INET) && defined(INET6)
6459                         struct sockaddr_in sin_store;
6460 #endif
6461
6462                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6463                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6464
6465 #if defined(INET) && defined(INET6)
6466                         if (encaps->sue_address.ss_family == AF_INET6) {
6467                                 struct sockaddr_in6 *sin6;
6468
6469                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6470                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6471                                         in6_sin6_2_sin(&sin_store, sin6);
6472                                         addr = (struct sockaddr *)&sin_store;
6473                                 } else {
6474                                         addr = (struct sockaddr *)&encaps->sue_address;
6475                                 }
6476                         } else {
6477                                 addr = (struct sockaddr *)&encaps->sue_address;
6478                         }
6479 #else
6480                         addr = (struct sockaddr *)&encaps->sue_address;
6481 #endif
6482                         if (stcb != NULL) {
6483                                 net = sctp_findnet(stcb, addr);
6484                         } else {
6485                                 /*
6486                                  * We increment here since
6487                                  * sctp_findassociation_ep_addr() wil do a
6488                                  * decrement if it finds the stcb as long as
6489                                  * the locked tcb (last argument) is NOT a
6490                                  * TCB.. aka NULL.
6491                                  */
6492                                 net = NULL;
6493                                 SCTP_INP_INCR_REF(inp);
6494                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6495                                 if (stcb == NULL) {
6496                                         SCTP_INP_DECR_REF(inp);
6497                                 }
6498                         }
6499                         if ((stcb != NULL) && (net == NULL)) {
6500 #ifdef INET
6501                                 if (addr->sa_family == AF_INET) {
6502
6503                                         struct sockaddr_in *sin;
6504
6505                                         sin = (struct sockaddr_in *)addr;
6506                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6507                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6508                                                 SCTP_TCB_UNLOCK(stcb);
6509                                                 error = EINVAL;
6510                                                 break;
6511                                         }
6512                                 } else
6513 #endif
6514 #ifdef INET6
6515                                 if (addr->sa_family == AF_INET6) {
6516                                         struct sockaddr_in6 *sin6;
6517
6518                                         sin6 = (struct sockaddr_in6 *)addr;
6519                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6520                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6521                                                 SCTP_TCB_UNLOCK(stcb);
6522                                                 error = EINVAL;
6523                                                 break;
6524                                         }
6525                                 } else
6526 #endif
6527                                 {
6528                                         error = EAFNOSUPPORT;
6529                                         SCTP_TCB_UNLOCK(stcb);
6530                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6531                                         break;
6532                                 }
6533                         }
6534
6535                         if (stcb != NULL) {
6536                                 if (net != NULL) {
6537                                         net->port = encaps->sue_port;
6538                                 } else {
6539                                         stcb->asoc.port = encaps->sue_port;
6540                                 }
6541                                 SCTP_TCB_UNLOCK(stcb);
6542                         } else {
6543                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6544                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6545                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6546                                         SCTP_INP_WLOCK(inp);
6547                                         inp->sctp_ep.port = encaps->sue_port;
6548                                         SCTP_INP_WUNLOCK(inp);
6549                                 } else {
6550                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6551                                         error = EINVAL;
6552                                 }
6553                         }
6554                         break;
6555                 }
6556         case SCTP_ECN_SUPPORTED:
6557                 {
6558                         struct sctp_assoc_value *av;
6559
6560                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6561                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6562
6563                         if (stcb) {
6564                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6565                                 error = EINVAL;
6566                                 SCTP_TCB_UNLOCK(stcb);
6567                         } else {
6568                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6569                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6570                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6571                                         SCTP_INP_WLOCK(inp);
6572                                         if (av->assoc_value == 0) {
6573                                                 inp->ecn_supported = 0;
6574                                         } else {
6575                                                 inp->ecn_supported = 1;
6576                                         }
6577                                         SCTP_INP_WUNLOCK(inp);
6578                                 } else {
6579                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6580                                         error = EINVAL;
6581                                 }
6582                         }
6583                         break;
6584                 }
6585         case SCTP_PR_SUPPORTED:
6586                 {
6587                         struct sctp_assoc_value *av;
6588
6589                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6590                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6591
6592                         if (stcb) {
6593                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6594                                 error = EINVAL;
6595                                 SCTP_TCB_UNLOCK(stcb);
6596                         } else {
6597                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6598                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6599                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6600                                         SCTP_INP_WLOCK(inp);
6601                                         if (av->assoc_value == 0) {
6602                                                 inp->prsctp_supported = 0;
6603                                         } else {
6604                                                 inp->prsctp_supported = 1;
6605                                         }
6606                                         SCTP_INP_WUNLOCK(inp);
6607                                 } else {
6608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6609                                         error = EINVAL;
6610                                 }
6611                         }
6612                         break;
6613                 }
6614         case SCTP_AUTH_SUPPORTED:
6615                 {
6616                         struct sctp_assoc_value *av;
6617
6618                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6619                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6620
6621                         if (stcb) {
6622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6623                                 error = EINVAL;
6624                                 SCTP_TCB_UNLOCK(stcb);
6625                         } else {
6626                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6627                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6628                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6629                                         if ((av->assoc_value == 0) &&
6630                                             (inp->asconf_supported == 1)) {
6631                                                 /*
6632                                                  * AUTH is required for
6633                                                  * ASCONF
6634                                                  */
6635                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6636                                                 error = EINVAL;
6637                                         } else {
6638                                                 SCTP_INP_WLOCK(inp);
6639                                                 if (av->assoc_value == 0) {
6640                                                         inp->auth_supported = 0;
6641                                                 } else {
6642                                                         inp->auth_supported = 1;
6643                                                 }
6644                                                 SCTP_INP_WUNLOCK(inp);
6645                                         }
6646                                 } else {
6647                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6648                                         error = EINVAL;
6649                                 }
6650                         }
6651                         break;
6652                 }
6653         case SCTP_ASCONF_SUPPORTED:
6654                 {
6655                         struct sctp_assoc_value *av;
6656
6657                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6658                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6659
6660                         if (stcb) {
6661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6662                                 error = EINVAL;
6663                                 SCTP_TCB_UNLOCK(stcb);
6664                         } else {
6665                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6666                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6667                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6668                                         if ((av->assoc_value != 0) &&
6669                                             (inp->auth_supported == 0)) {
6670                                                 /*
6671                                                  * AUTH is required for
6672                                                  * ASCONF
6673                                                  */
6674                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6675                                                 error = EINVAL;
6676                                         } else {
6677                                                 SCTP_INP_WLOCK(inp);
6678                                                 if (av->assoc_value == 0) {
6679                                                         inp->asconf_supported = 0;
6680                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6681                                                             inp->sctp_ep.local_auth_chunks);
6682                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6683                                                             inp->sctp_ep.local_auth_chunks);
6684                                                 } else {
6685                                                         inp->asconf_supported = 1;
6686                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6687                                                             inp->sctp_ep.local_auth_chunks);
6688                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6689                                                             inp->sctp_ep.local_auth_chunks);
6690                                                 }
6691                                                 SCTP_INP_WUNLOCK(inp);
6692                                         }
6693                                 } else {
6694                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6695                                         error = EINVAL;
6696                                 }
6697                         }
6698                         break;
6699                 }
6700         case SCTP_RECONFIG_SUPPORTED:
6701                 {
6702                         struct sctp_assoc_value *av;
6703
6704                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6705                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6706
6707                         if (stcb) {
6708                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6709                                 error = EINVAL;
6710                                 SCTP_TCB_UNLOCK(stcb);
6711                         } else {
6712                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6713                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6714                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6715                                         SCTP_INP_WLOCK(inp);
6716                                         if (av->assoc_value == 0) {
6717                                                 inp->reconfig_supported = 0;
6718                                         } else {
6719                                                 inp->reconfig_supported = 1;
6720                                         }
6721                                         SCTP_INP_WUNLOCK(inp);
6722                                 } else {
6723                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6724                                         error = EINVAL;
6725                                 }
6726                         }
6727                         break;
6728                 }
6729         case SCTP_NRSACK_SUPPORTED:
6730                 {
6731                         struct sctp_assoc_value *av;
6732
6733                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6734                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6735
6736                         if (stcb) {
6737                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6738                                 error = EINVAL;
6739                                 SCTP_TCB_UNLOCK(stcb);
6740                         } else {
6741                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6742                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6743                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6744                                         SCTP_INP_WLOCK(inp);
6745                                         if (av->assoc_value == 0) {
6746                                                 inp->nrsack_supported = 0;
6747                                         } else {
6748                                                 inp->nrsack_supported = 1;
6749                                         }
6750                                         SCTP_INP_WUNLOCK(inp);
6751                                 } else {
6752                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6753                                         error = EINVAL;
6754                                 }
6755                         }
6756                         break;
6757                 }
6758         case SCTP_PKTDROP_SUPPORTED:
6759                 {
6760                         struct sctp_assoc_value *av;
6761
6762                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6763                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6764
6765                         if (stcb) {
6766                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6767                                 error = EINVAL;
6768                                 SCTP_TCB_UNLOCK(stcb);
6769                         } else {
6770                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6771                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6772                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6773                                         SCTP_INP_WLOCK(inp);
6774                                         if (av->assoc_value == 0) {
6775                                                 inp->pktdrop_supported = 0;
6776                                         } else {
6777                                                 inp->pktdrop_supported = 1;
6778                                         }
6779                                         SCTP_INP_WUNLOCK(inp);
6780                                 } else {
6781                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6782                                         error = EINVAL;
6783                                 }
6784                         }
6785                         break;
6786                 }
6787         case SCTP_MAX_CWND:
6788                 {
6789                         struct sctp_assoc_value *av;
6790                         struct sctp_nets *net;
6791
6792                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6793                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6794
6795                         if (stcb) {
6796                                 stcb->asoc.max_cwnd = av->assoc_value;
6797                                 if (stcb->asoc.max_cwnd > 0) {
6798                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6799                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6800                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6801                                                         net->cwnd = stcb->asoc.max_cwnd;
6802                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6803                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6804                                                         }
6805                                                 }
6806                                         }
6807                                 }
6808                                 SCTP_TCB_UNLOCK(stcb);
6809                         } else {
6810                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6811                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6812                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6813                                         SCTP_INP_WLOCK(inp);
6814                                         inp->max_cwnd = av->assoc_value;
6815                                         SCTP_INP_WUNLOCK(inp);
6816                                 } else {
6817                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6818                                         error = EINVAL;
6819                                 }
6820                         }
6821                         break;
6822                 }
6823         default:
6824                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6825                 error = ENOPROTOOPT;
6826                 break;
6827         }                       /* end switch (opt) */
6828         return (error);
6829 }
6830
6831 int
6832 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6833 {
6834         void *optval = NULL;
6835         size_t optsize = 0;
6836         void *p;
6837         int error = 0;
6838         struct sctp_inpcb *inp;
6839
6840         if ((sopt->sopt_level == SOL_SOCKET) &&
6841             (sopt->sopt_name == SO_SETFIB)) {
6842                 inp = (struct sctp_inpcb *)so->so_pcb;
6843                 if (inp == NULL) {
6844                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6845                         return (EINVAL);
6846                 }
6847                 SCTP_INP_WLOCK(inp);
6848                 inp->fibnum = so->so_fibnum;
6849                 SCTP_INP_WUNLOCK(inp);
6850                 return (0);
6851         }
6852         if (sopt->sopt_level != IPPROTO_SCTP) {
6853                 /* wrong proto level... send back up to IP */
6854 #ifdef INET6
6855                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6856                         error = ip6_ctloutput(so, sopt);
6857 #endif                          /* INET6 */
6858 #if defined(INET) && defined(INET6)
6859                 else
6860 #endif
6861 #ifdef INET
6862                         error = ip_ctloutput(so, sopt);
6863 #endif
6864                 return (error);
6865         }
6866         optsize = sopt->sopt_valsize;
6867         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6868                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6869                 return (ENOBUFS);
6870         }
6871         if (optsize) {
6872                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6873                 if (optval == NULL) {
6874                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6875                         return (ENOBUFS);
6876                 }
6877                 error = sooptcopyin(sopt, optval, optsize, optsize);
6878                 if (error) {
6879                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6880                         goto out;
6881                 }
6882         }
6883         p = (void *)sopt->sopt_td;
6884         if (sopt->sopt_dir == SOPT_SET) {
6885                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6886         } else if (sopt->sopt_dir == SOPT_GET) {
6887                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6888         } else {
6889                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6890                 error = EINVAL;
6891         }
6892         if ((error == 0) && (optval != NULL)) {
6893                 error = sooptcopyout(sopt, optval, optsize);
6894                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6895         } else if (optval != NULL) {
6896                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6897         }
6898 out:
6899         return (error);
6900 }
6901
6902 #ifdef INET
6903 static int
6904 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6905 {
6906         int error = 0;
6907         int create_lock_on = 0;
6908         uint32_t vrf_id;
6909         struct sctp_inpcb *inp;
6910         struct sctp_tcb *stcb = NULL;
6911
6912         inp = (struct sctp_inpcb *)so->so_pcb;
6913         if (inp == NULL) {
6914                 /* I made the same as TCP since we are not setup? */
6915                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6916                 return (ECONNRESET);
6917         }
6918         if (addr == NULL) {
6919                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6920                 return EINVAL;
6921         }
6922
6923         switch (addr->sa_family) {
6924 #ifdef INET6
6925         case AF_INET6:
6926                 {
6927                         struct sockaddr_in6 *sin6p;
6928
6929                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6930                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6931                                 return (EINVAL);
6932                         }
6933                         sin6p = (struct sockaddr_in6 *)addr;
6934                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6935                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6936                                 return (error);
6937                         }
6938                         break;
6939                 }
6940 #endif
6941 #ifdef INET
6942         case AF_INET:
6943                 {
6944                         struct sockaddr_in *sinp;
6945
6946                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6947                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6948                                 return (EINVAL);
6949                         }
6950                         sinp = (struct sockaddr_in *)addr;
6951                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6952                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6953                                 return (error);
6954                         }
6955                         break;
6956                 }
6957 #endif
6958         default:
6959                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6960                 return (EAFNOSUPPORT);
6961         }
6962         SCTP_INP_INCR_REF(inp);
6963         SCTP_ASOC_CREATE_LOCK(inp);
6964         create_lock_on = 1;
6965
6966
6967         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6968             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6969                 /* Should I really unlock ? */
6970                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6971                 error = EFAULT;
6972                 goto out_now;
6973         }
6974 #ifdef INET6
6975         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6976             (addr->sa_family == AF_INET6)) {
6977                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6978                 error = EINVAL;
6979                 goto out_now;
6980         }
6981 #endif
6982         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6983             SCTP_PCB_FLAGS_UNBOUND) {
6984                 /* Bind a ephemeral port */
6985                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6986                 if (error) {
6987                         goto out_now;
6988                 }
6989         }
6990         /* Now do we connect? */
6991         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6992             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6993                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6994                 error = EINVAL;
6995                 goto out_now;
6996         }
6997         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6998             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6999                 /* We are already connected AND the TCP model */
7000                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7001                 error = EADDRINUSE;
7002                 goto out_now;
7003         }
7004         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7005                 SCTP_INP_RLOCK(inp);
7006                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7007                 SCTP_INP_RUNLOCK(inp);
7008         } else {
7009                 /*
7010                  * We increment here since sctp_findassociation_ep_addr()
7011                  * will do a decrement if it finds the stcb as long as the
7012                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7013                  */
7014                 SCTP_INP_INCR_REF(inp);
7015                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7016                 if (stcb == NULL) {
7017                         SCTP_INP_DECR_REF(inp);
7018                 } else {
7019                         SCTP_TCB_UNLOCK(stcb);
7020                 }
7021         }
7022         if (stcb != NULL) {
7023                 /* Already have or am bring up an association */
7024                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7025                 error = EALREADY;
7026                 goto out_now;
7027         }
7028
7029         vrf_id = inp->def_vrf_id;
7030         /* We are GOOD to go */
7031         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7032             inp->sctp_ep.pre_open_stream_count,
7033             inp->sctp_ep.port, p);
7034         if (stcb == NULL) {
7035                 /* Gak! no memory */
7036                 goto out_now;
7037         }
7038         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7039                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7040                 /* Set the connected flag so we can queue data */
7041                 soisconnecting(so);
7042         }
7043         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7044         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7045
7046         /* initialize authentication parameters for the assoc */
7047         sctp_initialize_auth_params(inp, stcb);
7048
7049         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7050         SCTP_TCB_UNLOCK(stcb);
7051 out_now:
7052         if (create_lock_on) {
7053                 SCTP_ASOC_CREATE_UNLOCK(inp);
7054         }
7055
7056         SCTP_INP_DECR_REF(inp);
7057         return (error);
7058 }
7059 #endif
7060
7061 int
7062 sctp_listen(struct socket *so, int backlog, struct thread *p)
7063 {
7064         /*
7065          * Note this module depends on the protocol processing being called
7066          * AFTER any socket level flags and backlog are applied to the
7067          * socket. The traditional way that the socket flags are applied is
7068          * AFTER protocol processing. We have made a change to the
7069          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7070          * place if the socket API for SCTP is to work properly.
7071          */
7072
7073         int error = 0;
7074         struct sctp_inpcb *inp;
7075
7076         inp = (struct sctp_inpcb *)so->so_pcb;
7077         if (inp == NULL) {
7078                 /* I made the same as TCP since we are not setup? */
7079                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7080                 return (ECONNRESET);
7081         }
7082         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7083                 /* See if we have a listener */
7084                 struct sctp_inpcb *tinp;
7085                 union sctp_sockstore store;
7086
7087                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7088                         /* not bound all */
7089                         struct sctp_laddr *laddr;
7090
7091                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7092                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7093                                 switch (store.sa.sa_family) {
7094 #ifdef INET
7095                                 case AF_INET:
7096                                         store.sin.sin_port = inp->sctp_lport;
7097                                         break;
7098 #endif
7099 #ifdef INET6
7100                                 case AF_INET6:
7101                                         store.sin6.sin6_port = inp->sctp_lport;
7102                                         break;
7103 #endif
7104                                 default:
7105                                         break;
7106                                 }
7107                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7108                                 if (tinp && (tinp != inp) &&
7109                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7110                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7111                                     (SCTP_IS_LISTENING(tinp))) {
7112                                         /*
7113                                          * we have a listener already and
7114                                          * its not this inp.
7115                                          */
7116                                         SCTP_INP_DECR_REF(tinp);
7117                                         return (EADDRINUSE);
7118                                 } else if (tinp) {
7119                                         SCTP_INP_DECR_REF(tinp);
7120                                 }
7121                         }
7122                 } else {
7123                         /* Setup a local addr bound all */
7124                         memset(&store, 0, sizeof(store));
7125 #ifdef INET6
7126                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7127                                 store.sa.sa_family = AF_INET6;
7128                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7129                         }
7130 #endif
7131 #ifdef INET
7132                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7133                                 store.sa.sa_family = AF_INET;
7134                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7135                         }
7136 #endif
7137                         switch (store.sa.sa_family) {
7138 #ifdef INET
7139                         case AF_INET:
7140                                 store.sin.sin_port = inp->sctp_lport;
7141                                 break;
7142 #endif
7143 #ifdef INET6
7144                         case AF_INET6:
7145                                 store.sin6.sin6_port = inp->sctp_lport;
7146                                 break;
7147 #endif
7148                         default:
7149                                 break;
7150                         }
7151                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7152                         if (tinp && (tinp != inp) &&
7153                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7154                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7155                             (SCTP_IS_LISTENING(tinp))) {
7156                                 /*
7157                                  * we have a listener already and its not
7158                                  * this inp.
7159                                  */
7160                                 SCTP_INP_DECR_REF(tinp);
7161                                 return (EADDRINUSE);
7162                         } else if (tinp) {
7163                                 SCTP_INP_DECR_REF(tinp);
7164                         }
7165                 }
7166         }
7167         SCTP_INP_RLOCK(inp);
7168 #ifdef SCTP_LOCK_LOGGING
7169         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7170                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7171         }
7172 #endif
7173         SOCK_LOCK(so);
7174         error = solisten_proto_check(so);
7175         SOCK_UNLOCK(so);
7176         if (error) {
7177                 SCTP_INP_RUNLOCK(inp);
7178                 return (error);
7179         }
7180         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7181             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7182                 /*
7183                  * The unlucky case - We are in the tcp pool with this guy.
7184                  * - Someone else is in the main inp slot. - We must move
7185                  * this guy (the listener) to the main slot - We must then
7186                  * move the guy that was listener to the TCP Pool.
7187                  */
7188                 if (sctp_swap_inpcb_for_listen(inp)) {
7189                         SCTP_INP_RUNLOCK(inp);
7190                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7191                         return (EADDRINUSE);
7192                 }
7193         }
7194
7195         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7196             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7197                 /* We are already connected AND the TCP model */
7198                 SCTP_INP_RUNLOCK(inp);
7199                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7200                 return (EADDRINUSE);
7201         }
7202         SCTP_INP_RUNLOCK(inp);
7203         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7204                 /* We must do a bind. */
7205                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7206                         /* bind error, probably perm */
7207                         return (error);
7208                 }
7209         }
7210         SCTP_INP_WLOCK(inp);
7211         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7212                 SOCK_LOCK(so);
7213                 solisten_proto(so, backlog);
7214                 SOCK_UNLOCK(so);
7215         }
7216         if (backlog > 0) {
7217                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7218         } else {
7219                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7220         }
7221         SCTP_INP_WUNLOCK(inp);
7222         return (error);
7223 }
7224
7225 static int sctp_defered_wakeup_cnt = 0;
7226
7227 int
7228 sctp_accept(struct socket *so, struct sockaddr **addr)
7229 {
7230         struct sctp_tcb *stcb;
7231         struct sctp_inpcb *inp;
7232         union sctp_sockstore store;
7233 #ifdef INET6
7234         int error;
7235 #endif
7236         inp = (struct sctp_inpcb *)so->so_pcb;
7237
7238         if (inp == NULL) {
7239                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7240                 return (ECONNRESET);
7241         }
7242         SCTP_INP_RLOCK(inp);
7243         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7244                 SCTP_INP_RUNLOCK(inp);
7245                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7246                 return (EOPNOTSUPP);
7247         }
7248         if (so->so_state & SS_ISDISCONNECTED) {
7249                 SCTP_INP_RUNLOCK(inp);
7250                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7251                 return (ECONNABORTED);
7252         }
7253         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7254         if (stcb == NULL) {
7255                 SCTP_INP_RUNLOCK(inp);
7256                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7257                 return (ECONNRESET);
7258         }
7259         SCTP_TCB_LOCK(stcb);
7260         SCTP_INP_RUNLOCK(inp);
7261         store = stcb->asoc.primary_destination->ro._l_addr;
7262         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7263         SCTP_TCB_UNLOCK(stcb);
7264         switch (store.sa.sa_family) {
7265 #ifdef INET
7266         case AF_INET:
7267                 {
7268                         struct sockaddr_in *sin;
7269
7270                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7271                         if (sin == NULL)
7272                                 return (ENOMEM);
7273                         sin->sin_family = AF_INET;
7274                         sin->sin_len = sizeof(*sin);
7275                         sin->sin_port = store.sin.sin_port;
7276                         sin->sin_addr = store.sin.sin_addr;
7277                         *addr = (struct sockaddr *)sin;
7278                         break;
7279                 }
7280 #endif
7281 #ifdef INET6
7282         case AF_INET6:
7283                 {
7284                         struct sockaddr_in6 *sin6;
7285
7286                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7287                         if (sin6 == NULL)
7288                                 return (ENOMEM);
7289                         sin6->sin6_family = AF_INET6;
7290                         sin6->sin6_len = sizeof(*sin6);
7291                         sin6->sin6_port = store.sin6.sin6_port;
7292                         sin6->sin6_addr = store.sin6.sin6_addr;
7293                         if ((error = sa6_recoverscope(sin6)) != 0) {
7294                                 SCTP_FREE_SONAME(sin6);
7295                                 return (error);
7296                         }
7297                         *addr = (struct sockaddr *)sin6;
7298                         break;
7299                 }
7300 #endif
7301         default:
7302                 /* TSNH */
7303                 break;
7304         }
7305         /* Wake any delayed sleep action */
7306         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7307                 SCTP_INP_WLOCK(inp);
7308                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7309                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7310                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7311                         SCTP_INP_WUNLOCK(inp);
7312                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7313                         if (sowriteable(inp->sctp_socket)) {
7314                                 sowwakeup_locked(inp->sctp_socket);
7315                         } else {
7316                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7317                         }
7318                         SCTP_INP_WLOCK(inp);
7319                 }
7320                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7321                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7322                         SCTP_INP_WUNLOCK(inp);
7323                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7324                         if (soreadable(inp->sctp_socket)) {
7325                                 sctp_defered_wakeup_cnt++;
7326                                 sorwakeup_locked(inp->sctp_socket);
7327                         } else {
7328                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7329                         }
7330                         SCTP_INP_WLOCK(inp);
7331                 }
7332                 SCTP_INP_WUNLOCK(inp);
7333         }
7334         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7335                 SCTP_TCB_LOCK(stcb);
7336                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7337                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7338         }
7339         return (0);
7340 }
7341
7342 #ifdef INET
7343 int
7344 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7345 {
7346         struct sockaddr_in *sin;
7347         uint32_t vrf_id;
7348         struct sctp_inpcb *inp;
7349         struct sctp_ifa *sctp_ifa;
7350
7351         /*
7352          * Do the malloc first in case it blocks.
7353          */
7354         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7355         if (sin == NULL)
7356                 return (ENOMEM);
7357         sin->sin_family = AF_INET;
7358         sin->sin_len = sizeof(*sin);
7359         inp = (struct sctp_inpcb *)so->so_pcb;
7360         if (!inp) {
7361                 SCTP_FREE_SONAME(sin);
7362                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7363                 return (ECONNRESET);
7364         }
7365         SCTP_INP_RLOCK(inp);
7366         sin->sin_port = inp->sctp_lport;
7367         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7368                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7369                         struct sctp_tcb *stcb;
7370                         struct sockaddr_in *sin_a;
7371                         struct sctp_nets *net;
7372                         int fnd;
7373
7374                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7375                         if (stcb == NULL) {
7376                                 goto notConn;
7377                         }
7378                         fnd = 0;
7379                         sin_a = NULL;
7380                         SCTP_TCB_LOCK(stcb);
7381                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7382                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7383                                 if (sin_a == NULL)
7384                                         /* this will make coverity happy */
7385                                         continue;
7386
7387                                 if (sin_a->sin_family == AF_INET) {
7388                                         fnd = 1;
7389                                         break;
7390                                 }
7391                         }
7392                         if ((!fnd) || (sin_a == NULL)) {
7393                                 /* punt */
7394                                 SCTP_TCB_UNLOCK(stcb);
7395                                 goto notConn;
7396                         }
7397
7398                         vrf_id = inp->def_vrf_id;
7399                         sctp_ifa = sctp_source_address_selection(inp,
7400                             stcb,
7401                             (sctp_route_t *)&net->ro,
7402                             net, 0, vrf_id);
7403                         if (sctp_ifa) {
7404                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7405                                 sctp_free_ifa(sctp_ifa);
7406                         }
7407                         SCTP_TCB_UNLOCK(stcb);
7408                 } else {
7409                         /* For the bound all case you get back 0 */
7410         notConn:
7411                         sin->sin_addr.s_addr = 0;
7412                 }
7413
7414         } else {
7415                 /* Take the first IPv4 address in the list */
7416                 struct sctp_laddr *laddr;
7417                 int fnd = 0;
7418
7419                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7420                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7421                                 struct sockaddr_in *sin_a;
7422
7423                                 sin_a = &laddr->ifa->address.sin;
7424                                 sin->sin_addr = sin_a->sin_addr;
7425                                 fnd = 1;
7426                                 break;
7427                         }
7428                 }
7429                 if (!fnd) {
7430                         SCTP_FREE_SONAME(sin);
7431                         SCTP_INP_RUNLOCK(inp);
7432                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7433                         return (ENOENT);
7434                 }
7435         }
7436         SCTP_INP_RUNLOCK(inp);
7437         (*addr) = (struct sockaddr *)sin;
7438         return (0);
7439 }
7440
7441 int
7442 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7443 {
7444         struct sockaddr_in *sin;
7445         int fnd;
7446         struct sockaddr_in *sin_a;
7447         struct sctp_inpcb *inp;
7448         struct sctp_tcb *stcb;
7449         struct sctp_nets *net;
7450
7451         /* Do the malloc first in case it blocks. */
7452         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7453         if (sin == NULL)
7454                 return (ENOMEM);
7455         sin->sin_family = AF_INET;
7456         sin->sin_len = sizeof(*sin);
7457
7458         inp = (struct sctp_inpcb *)so->so_pcb;
7459         if ((inp == NULL) ||
7460             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7461                 /* UDP type and listeners will drop out here */
7462                 SCTP_FREE_SONAME(sin);
7463                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7464                 return (ENOTCONN);
7465         }
7466         SCTP_INP_RLOCK(inp);
7467         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7468         if (stcb) {
7469                 SCTP_TCB_LOCK(stcb);
7470         }
7471         SCTP_INP_RUNLOCK(inp);
7472         if (stcb == NULL) {
7473                 SCTP_FREE_SONAME(sin);
7474                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7475                 return (ECONNRESET);
7476         }
7477         fnd = 0;
7478         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7479                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7480                 if (sin_a->sin_family == AF_INET) {
7481                         fnd = 1;
7482                         sin->sin_port = stcb->rport;
7483                         sin->sin_addr = sin_a->sin_addr;
7484                         break;
7485                 }
7486         }
7487         SCTP_TCB_UNLOCK(stcb);
7488         if (!fnd) {
7489                 /* No IPv4 address */
7490                 SCTP_FREE_SONAME(sin);
7491                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7492                 return (ENOENT);
7493         }
7494         (*addr) = (struct sockaddr *)sin;
7495         return (0);
7496 }
7497
7498 struct pr_usrreqs sctp_usrreqs = {
7499         .pru_abort = sctp_abort,
7500         .pru_accept = sctp_accept,
7501         .pru_attach = sctp_attach,
7502         .pru_bind = sctp_bind,
7503         .pru_connect = sctp_connect,
7504         .pru_control = in_control,
7505         .pru_close = sctp_close,
7506         .pru_detach = sctp_close,
7507         .pru_sopoll = sopoll_generic,
7508         .pru_flush = sctp_flush,
7509         .pru_disconnect = sctp_disconnect,
7510         .pru_listen = sctp_listen,
7511         .pru_peeraddr = sctp_peeraddr,
7512         .pru_send = sctp_sendm,
7513         .pru_shutdown = sctp_shutdown,
7514         .pru_sockaddr = sctp_ingetaddr,
7515         .pru_sosend = sctp_sosend,
7516         .pru_soreceive = sctp_soreceive
7517 };
7518 #endif